{"id":2680,"date":"2026-07-21T02:59:49","date_gmt":"2026-07-21T02:59:49","guid":{"rendered":"https:\/\/www.sapphire-windows.com\/?p=2680"},"modified":"2026-07-21T03:00:14","modified_gmt":"2026-07-21T03:00:14","slug":"custom-sapphire-windows-rfq-template","status":"publish","type":"post","link":"https:\/\/www.sapphire-windows.com\/th\/custom-sapphire-windows-rfq-template\/","title":{"rendered":"Custom Sapphire Windows RFQ Template: What Drawings and Specifications Are Needed for an Accurate Quote?"},"content":{"rendered":"

\u0e2b\u0e19\u0e49\u0e32\u0e15\u0e48\u0e32\u0e07\u0e41\u0e0b\u0e1f\u0e44\u0e1f\u0e23\u0e4c\u0e2a\u0e31\u0e48\u0e07\u0e17\u0e33\u0e1e\u0e34\u0e40\u0e28\u0e29<\/mark><\/a> are rarely selected from a completely standard catalog. Even when two parts have the same diameter and thickness, differences in surface quality, flatness, crystal orientation, coating performance, edge geometry and inspection requirements can produce significantly different manufacturing processes and quotations.<\/p>\n\n\n\n

A complete request for quotation, or RFQ, helps the sapphire window manufacturer evaluate feasibility, select an appropriate manufacturing route and provide a more accurate price and lead time.<\/p>\n\n\n\n

This guide explains what drawings, specifications and application information buyers should prepare before requesting a quotation for custom sapphire windows.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Why a Complete Sapphire Window RFQ Matters<\/h2>\n\n\n\n

A quotation based only on diameter, thickness and quantity is usually preliminary.<\/p>\n\n\n\n

For example, a buyer may request:<\/p>\n\n\n\n

\n

Sapphire window, diameter 50 mm, thickness 3 mm, quantity 20 pieces.<\/p>\n<\/blockquote>\n\n\n\n

This information identifies the basic size, but it does not tell the manufacturer:<\/p>\n\n\n\n

    \n
  • Whether the window is used for imaging or only physical protection<\/li>\n\n\n\n
  • Which wavelength range must be transmitted<\/li>\n\n\n\n
  • Whether the surfaces require optical polishing<\/li>\n\n\n\n
  • How strict the flatness and parallelism must be<\/li>\n\n\n\n
  • Whether an anti-reflective coating is required<\/li>\n\n\n\n
  • Whether the part will operate under pressure, vacuum or high temperature<\/li>\n\n\n\n
  • Whether the edge will be bonded, brazed, clamped or sealed with an O-ring<\/li>\n\n\n\n
  • Which inspection reports must be supplied<\/li>\n<\/ul>\n\n\n\n

    Without these details, the supplier may either quote a product that does not meet the application or add unnecessary safety margins that increase the price.<\/p>\n\n\n\n

    A well-prepared RFQ allows both parties to compare the same technical requirements.<\/p>\n\n\n\n

    1. Provide a Dimensioned Sapphire Window Drawing<\/h2>\n\n\n\n

    The best starting point is a 2D engineering drawing in PDF format.<\/p>\n\n\n\n

    A STEP, IGES or other 3D model can be included for reference, especially for windows with steps, grooves, holes or irregular contours. However, the 2D drawing should remain the primary document for dimensions, tolerances and inspection requirements.<\/p>\n\n\n\n

    The ISO 10110 series standardizes how design and functional requirements for optical elements can be presented in technical drawings. ISO 10110-1 covers the general drawing layout, while other parts address characteristics such as surface imperfections and optical material properties.<\/p>\n\n\n\n

    At minimum, the drawing should show:<\/p>\n\n\n\n

      \n
    • Overall diameter, length and width<\/li>\n\n\n\n
    • \u0e04\u0e27\u0e32\u0e21\u0e2b\u0e19\u0e32\u0e2b\u0e25\u0e31\u0e07\u0e40\u0e2a\u0e23\u0e47\u0e08\u0e2a\u0e34\u0e49\u0e19<\/li>\n\n\n\n
    • Dimensional tolerances<\/li>\n\n\n\n
    • \u0e23\u0e39\u0e23\u0e31\u0e1a\u0e41\u0e2a\u0e07<\/li>\n\n\n\n
    • Edge thickness where applicable<\/li>\n\n\n\n
    • Chamfers, bevels or corner radii<\/li>\n\n\n\n
    • Holes, grooves, slots, steps or recesses<\/li>\n\n\n\n
    • Coated and uncoated surfaces<\/li>\n\n\n\n
    • Datum surfaces<\/li>\n\n\n\n
    • Critical inspection dimensions<\/li>\n<\/ul>\n\n\n\n

      For a circular window, specify whether the diameter refers to the finished optical part or a dimension before coating, metallization or assembly.<\/p>\n\n\n\n

      For rectangular or square sapphire windows, include corner-radius requirements. A perfectly sharp internal or external corner may be impractical or more likely to chip during manufacturing and assembly.<\/p>\n\n\n\n

      2. Define the Sapphire Material and Crystal Orientation<\/h2>\n\n\n\n

      The RFQ should clearly state that the required material is synthetic single-crystal sapphire, also known as single-crystal aluminum oxide.<\/p>\n\n\n\n

      The required crystal orientation should also be identified when it affects the optical or mechanical design.<\/p>\n\n\n\n

      Common orientations may include:<\/p>\n\n\n\n

        \n
      • \u0e41\u0e0b\u0e1f\u0e44\u0e1f\u0e23\u0e4c\u0e41\u0e1a\u0e1a C-plane<\/li>\n\n\n\n
      • \u0e41\u0e0b\u0e1f\u0e44\u0e1f\u0e23\u0e4c\u0e41\u0e1a\u0e1a A-plane<\/li>\n\n\n\n
      • \u0e41\u0e0b\u0e1f\u0e44\u0e1f\u0e23\u0e4c\u0e41\u0e1a\u0e1a R-plane<\/li>\n\n\n\n
      • \u0e41\u0e0b\u0e1f\u0e44\u0e1f\u0e23\u0e4c\u0e41\u0e1a\u0e1a M-plane<\/li>\n\n\n\n
      • Custom off-axis orientation<\/li>\n<\/ul>\n\n\n\n

        For many general protective-window applications, the customer may allow the manufacturer to recommend the orientation. However, orientation should not be left undefined in polarization-sensitive, birefringence-sensitive or specialized optical systems.<\/p>\n\n\n\n

        Sapphire is an anisotropic crystal, and its optical response depends on the relationship between the light path, polarization and crystallographic axis. Research on synthetic sapphire also discusses ordinary and extraordinary refractive indices and the role of crystal orientation in optical measurements.<\/p>\n\n\n\n

        The RFQ should therefore include one of the following statements:<\/p>\n\n\n\n

          \n
        • Crystal orientation: C-plane<\/li>\n\n\n\n
        • Crystal orientation: A-plane<\/li>\n\n\n\n
        • Crystal orientation: supplier recommendation acceptable<\/li>\n\n\n\n
        • Crystal axis orientation relative to the drawing datum: as specified<\/li>\n\n\n\n
        • Orientation certificate required: yes or no<\/li>\n<\/ul>\n\n\n\n

          When orientation is critical, indicate the permitted angular deviation and whether an orientation inspection report is required.<\/p>\n\n\n\n

          3. Specify the Finished Dimensions and Tolerances<\/h2>\n\n\n\n

          The drawing should distinguish nominal dimensions from acceptable tolerances.<\/p>\n\n\n\n

          Important dimensional requirements may include:<\/p>\n\n\n\n

            \n
          • Outside diameter<\/li>\n\n\n\n
          • Length and width<\/li>\n\n\n\n
          • Center thickness<\/li>\n\n\n\n
          • Edge thickness<\/li>\n\n\n\n
          • Diameter tolerance<\/li>\n\n\n\n
          • Thickness tolerance<\/li>\n\n\n\n
          • \u0e04\u0e27\u0e32\u0e21\u0e2a\u0e21\u0e21\u0e32\u0e15\u0e23<\/li>\n\n\n\n
          • Wedge<\/li>\n\n\n\n
          • Perpendicularity<\/li>\n\n\n\n
          • Concentricity<\/li>\n\n\n\n
          • \u0e15\u0e33\u0e41\u0e2b\u0e19\u0e48\u0e07\u0e23\u0e39<\/li>\n\n\n\n
          • \u0e04\u0e27\u0e32\u0e21\u0e2a\u0e39\u0e07\u0e02\u0e2d\u0e07\u0e02\u0e31\u0e49\u0e19\u0e1a\u0e31\u0e19\u0e44\u0e14<\/li>\n\n\n\n
          • Groove width and depth<\/li>\n<\/ul>\n\n\n\n

            Avoid using extremely tight tolerances by default.<\/p>\n\n\n\n

            A tolerance should be based on the functional requirement of the assembly. Unnecessarily tight tolerances can increase polishing time, inspection time, manufacturing risk and cost without improving the actual performance of the product.<\/p>\n\n\n\n

            For example, a sapphire cover protecting a camera sensor may not require the same parallelism or transmitted wavefront specification as a window installed in a precision laser path.<\/p>\n\n\n\n

            When a dimension is essential for sealing, alignment or assembly, mark it as a critical dimension on the drawing.<\/p>\n\n\n\n

            4. State the Clear Aperture<\/h2>\n\n\n\n

            The clear aperture is the area through which the optical beam or imaging field must pass without being affected by edge chips, bevels, mounting features or coating exclusion zones.<\/p>\n\n\n\n

            The RFQ should specify:<\/p>\n\n\n\n

              \n
            • Clear-aperture diameter or dimensions<\/li>\n\n\n\n
            • Whether the clear aperture is centered<\/li>\n\n\n\n
            • Allowed coating exclusion near the edge<\/li>\n\n\n\n
            • Whether cosmetic requirements apply outside the clear aperture<\/li>\n\n\n\n
            • Whether both sides have the same clear aperture<\/li>\n<\/ul>\n\n\n\n

              A typical drawing note might read:<\/p>\n\n\n\n

              \n

              Clear aperture: central 90% of the finished diameter.<\/p>\n<\/blockquote>\n\n\n\n

              However, the required value should be based on the optical design and mounting arrangement rather than copied from a generic specification.<\/p>\n\n\n\n

              For an irregularly shaped sapphire window, show the clear aperture directly on the drawing.<\/p>\n\n\n\n

              5. Define Surface Quality<\/h2>\n\n\n\n

              Surface quality describes allowable visible imperfections such as scratches and digs on an optical surface.<\/p>\n\n\n\n

              The RFQ should state:<\/p>\n\n\n\n

                \n
              • Required scratch-dig value or applicable inspection standard<\/li>\n\n\n\n
              • Which surfaces are optical surfaces<\/li>\n\n\n\n
              • Whether requirements apply only inside the clear aperture<\/li>\n\n\n\n
              • Whether cosmetic inspection outside the clear aperture is required<\/li>\n\n\n\n
              • Lighting and magnification requirements if nonstandard<\/li>\n<\/ul>\n\n\n\n

                Surface-quality requirements should match the application.<\/p>\n\n\n\n

                An imaging window, laser window or inspection-system window may require stricter cosmetic quality than a protective viewport used only for process observation.<\/p>\n\n\n\n

                Do not specify \u201cno scratches\u201d or \u201cperfect surface.\u201d These phrases are difficult to inspect consistently and do not establish an objective acceptance criterion.<\/p>\n\n\n\n

                A measurable inspection specification reduces disputes between the buyer and the supplier.<\/p>\n\n\n\n

                6. Specify Surface Flatness or Transmitted Wavefront Requirements<\/h2>\n\n\n\n

                Surface flatness controls the shape of an individual polished surface. Transmitted wavefront error evaluates the optical effect of the complete window as light passes through it.<\/p>\n\n\n\n

                These are related but different requirements.<\/p>\n\n\n\n

                The RFQ should indicate:<\/p>\n\n\n\n

                  \n
                • Surface flatness requirement<\/li>\n\n\n\n
                • Measurement wavelength<\/li>\n\n\n\n
                • Clear aperture used for measurement<\/li>\n\n\n\n
                • Transmitted wavefront requirement, when applicable<\/li>\n\n\n\n
                • Whether the specification applies before or after coating<\/li>\n\n\n\n
                • Whether an interferogram is required<\/li>\n<\/ul>\n\n\n\n

                  For a protective window that does not form part of the imaging path, a stringent transmitted wavefront specification may not be necessary.<\/p>\n\n\n\n

                  For laser, imaging, interferometric or precision sensing applications, transmitted wavefront performance may be more important than surface flatness alone.<\/p>\n\n\n\n

                  The buyer should specify the functional optical requirement and allow the manufacturer to confirm the most appropriate inspection method.<\/p>\n\n\n\n

                  7. Define Surface Roughness<\/h2>\n\n\n\n

                  Surface roughness can influence scatter, coating adhesion and optical performance.<\/p>\n\n\n\n

                  The RFQ should include:<\/p>\n\n\n\n

                    \n
                  • Maximum surface roughness<\/li>\n\n\n\n
                  • Measurement unit<\/li>\n\n\n\n
                  • Measurement method<\/li>\n\n\n\n
                  • Sampling area<\/li>\n\n\n\n
                  • Whether the requirement applies to one or both surfaces<\/li>\n\n\n\n
                  • Whether roughness data or a test report is required<\/li>\n<\/ul>\n\n\n\n

                    A generic note such as \u201coptical polish\u201d may not be sufficient for a high-performance optical system.<\/p>\n\n\n\n

                    At the same time, specifying an exceptionally low roughness for a basic protective viewport can unnecessarily increase manufacturing cost.<\/p>\n\n\n\n

                    The surface roughness requirement should therefore be connected to the wavelength, optical sensitivity and coating process.<\/p>\n\n\n\n

                    8. Identify the Operating Wavelength Range<\/h2>\n\n\n\n

                    The manufacturer needs to know which wavelengths must pass through the sapphire window.<\/p>\n\n\n\n

                    The RFQ should identify:<\/p>\n\n\n\n

                      \n
                    • Operating wavelength or wavelength range<\/li>\n\n\n\n
                    • Laser wavelength, where applicable<\/li>\n\n\n\n
                    • Broadband or narrowband operation<\/li>\n\n\n\n
                    • \u0e21\u0e38\u0e21\u0e15\u0e01\u0e01\u0e23\u0e30\u0e17\u0e1a<\/li>\n\n\n\n
                    • Polarization state<\/li>\n\n\n\n
                    • Minimum transmission requirement<\/li>\n\n\n\n
                    • Maximum reflection requirement<\/li>\n\n\n\n
                    • Whether the value applies to each surface or the complete coated window<\/li>\n<\/ul>\n\n\n\n

                      \u0e15\u0e31\u0e27\u0e2d\u0e22\u0e48\u0e32\u0e07\u0e44\u0e14\u0e49\u0e41\u0e01\u0e48:<\/p>\n\n\n\n

                        \n
                      • Visible inspection range<\/li>\n\n\n\n
                      • Near-infrared sensing range<\/li>\n\n\n\n
                      • Specific laser wavelength<\/li>\n\n\n\n
                      • Ultraviolet detection range<\/li>\n\n\n\n
                      • Broadband optical monitoring<\/li>\n<\/ul>\n\n\n\n

                        The wavelength range is particularly important when an anti-reflective coating is required.<\/p>\n\n\n\n

                        A coating optimized for one wavelength may not provide the required performance across a broad spectral range.<\/p>\n\n\n\n

                        9. Provide Complete Coating Requirements<\/h2>\n\n\n\n

                        Do not request only an \u201cAR coating\u201d without additional details.<\/p>\n\n\n\n

                        A coating RFQ should state:<\/p>\n\n\n\n

                          \n
                        • Coating type<\/li>\n\n\n\n
                        • Operating wavelength or spectral band<\/li>\n\n\n\n
                        • \u0e21\u0e38\u0e21\u0e15\u0e01\u0e01\u0e23\u0e30\u0e17\u0e1a<\/li>\n\n\n\n
                        • \u0e01\u0e32\u0e23\u0e41\u0e1a\u0e48\u0e07\u0e02\u0e31\u0e49\u0e27<\/li>\n\n\n\n
                        • Required average or maximum reflectance<\/li>\n\n\n\n
                        • Required transmission<\/li>\n\n\n\n
                        • Coated surface identification<\/li>\n\n\n\n
                        • Uncoated edge or masking requirements<\/li>\n\n\n\n
                        • Environmental durability requirements<\/li>\n\n\n\n
                        • Laser power or energy conditions<\/li>\n\n\n\n
                        • Cleaning method<\/li>\n\n\n\n
                        • Applicable coating standard<\/li>\n<\/ul>\n\n\n\n

                          The ISO 9211 series provides a standardized framework for specifying optical coatings. ISO 9211-2 addresses optical properties and spectral characterization, while ISO 9211-3 covers environmental durability. Separate parts establish minimum requirements for antireflecting coatings and coatings used for laser optics.<\/p>\n\n\n\n

                          For a laser application, also provide:<\/p>\n\n\n\n

                            \n
                          • Continuous-wave or pulsed operation<\/li>\n\n\n\n
                          • Average power<\/li>\n\n\n\n
                          • Peak power<\/li>\n\n\n\n
                          • Pulse energy<\/li>\n\n\n\n
                          • Pulse duration<\/li>\n\n\n\n
                          • Repetition rate<\/li>\n\n\n\n
                          • Beam diameter<\/li>\n\n\n\n
                          • Beam profile<\/li>\n\n\n\n
                          • Required laser-induced damage threshold<\/li>\n\n\n\n
                          • Test wavelength and test method<\/li>\n<\/ul>\n\n\n\n

                            The coating supplier cannot properly evaluate laser-damage risk using wavelength alone.<\/p>\n\n\n\n

                            10. Describe the Edge Geometry<\/h2>\n\n\n\n

                            Sapphire is hard and wear-resistant, but edge geometry still matters during machining, handling and assembly.<\/p>\n\n\n\n

                            The drawing should define:<\/p>\n\n\n\n

                              \n
                            • \u0e02\u0e19\u0e32\u0e14\u0e21\u0e38\u0e21\u0e15\u0e31\u0e14<\/li>\n\n\n\n
                            • Bevel angle<\/li>\n\n\n\n
                            • Edge radius<\/li>\n\n\n\n
                            • Ground or polished edge<\/li>\n\n\n\n
                            • Edge-chip acceptance criteria<\/li>\n\n\n\n
                            • Blackened edge requirements<\/li>\n\n\n\n
                            • Coating exclusion<\/li>\n\n\n\n
                            • Metallization area<\/li>\n\n\n\n
                            • Bonding area<\/li>\n<\/ul>\n\n\n\n

                              A controlled chamfer or radius can reduce handling damage and make the part easier to install.<\/p>\n\n\n\n

                              For windows used with an O-ring, gasket or adhesive, indicate the actual contact area. This allows the manufacturer to evaluate whether the edge finish and dimensional tolerances are suitable for sealing.<\/p>\n\n\n\n

                              11. Explain the Mounting and Sealing Method<\/h2>\n\n\n\n

                              The sapphire window does not operate independently. Its performance can be affected by the surrounding metal, ceramic, polymer or adhesive structure.<\/p>\n\n\n\n

                              Tell the supplier whether the window will be:<\/p>\n\n\n\n

                                \n
                              • Mechanically clamped<\/li>\n\n\n\n
                              • Adhesively bonded<\/li>\n\n\n\n
                              • Brazed into a metal housing<\/li>\n\n\n\n
                              • Metallized and soldered<\/li>\n\n\n\n
                              • Sealed with an O-ring<\/li>\n\n\n\n
                              • Installed in a vacuum flange<\/li>\n\n\n\n
                              • Press-fitted<\/li>\n\n\n\n
                              • Overmolded<\/li>\n\n\n\n
                              • Used as part of a hermetic package<\/li>\n<\/ul>\n\n\n\n

                                Include the mating-part drawing when possible.<\/p>\n\n\n\n

                                For sealing applications, provide:<\/p>\n\n\n\n

                                  \n
                                • Contact diameter<\/li>\n\n\n\n
                                • Gland or groove geometry<\/li>\n\n\n\n
                                • \u0e27\u0e31\u0e2a\u0e14\u0e38\u0e17\u0e33\u0e0b\u0e35\u0e25<\/li>\n\n\n\n
                                • Compression load<\/li>\n\n\n\n
                                • Bolt pattern<\/li>\n\n\n\n
                                • Assembly temperature<\/li>\n\n\n\n
                                • Maximum pressure differential<\/li>\n\n\n\n
                                • Leakage requirement<\/li>\n<\/ul>\n\n\n\n

                                  A sapphire window designed for optical transmission may still fail in service if the mounting design creates excessive localized stress.<\/p>\n\n\n\n

                                  12. Describe Pressure, Vacuum and Mechanical Loads<\/h2>\n\n\n\n

                                  For pressure-bearing windows, specify actual operating conditions rather than only requesting a \u201chigh-pressure sapphire window.\u201d<\/p>\n\n\n\n

                                  The RFQ should include:<\/p>\n\n\n\n

                                    \n
                                  • Pressure direction<\/li>\n\n\n\n
                                  • Maximum operating pressure<\/li>\n\n\n\n
                                  • Proof pressure<\/li>\n\n\n\n
                                  • Burst-pressure requirement<\/li>\n\n\n\n
                                  • Internal or external pressure<\/li>\n\n\n\n
                                  • Unsupported clear diameter<\/li>\n\n\n\n
                                  • Mounting and sealing arrangement<\/li>\n\n\n\n
                                  • Temperature at maximum pressure<\/li>\n\n\n\n
                                  • Cyclic or continuous loading<\/li>\n\n\n\n
                                  • Safety factor or governing design standard<\/li>\n<\/ul>\n\n\n\n

                                    The unsupported aperture is especially important because the load on the window depends on the area exposed to the pressure difference.<\/p>\n\n\n\n

                                    Where failure could create a safety risk, the final window thickness and mounting design should be validated by the customer\u2019s qualified mechanical engineer.<\/p>\n\n\n\n

                                    13. State the Operating Environment<\/h2>\n\n\n\n

                                    Environmental conditions can affect material selection, coating durability, sealing and inspection requirements.<\/p>\n\n\n\n

                                    Provide information about:<\/p>\n\n\n\n

                                      \n
                                    • Minimum and maximum operating temperature<\/li>\n\n\n\n
                                    • Thermal cycling<\/li>\n\n\n\n
                                    • Rapid temperature changes<\/li>\n\n\n\n
                                    • Vacuum level<\/li>\n\n\n\n
                                    • Humidity<\/li>\n\n\n\n
                                    • Salt spray<\/li>\n\n\n\n
                                    • Outdoor exposure<\/li>\n\n\n\n
                                    • Chemical contact<\/li>\n\n\n\n
                                    • Plasma exposure<\/li>\n\n\n\n
                                    • Abrasive particles<\/li>\n\n\n\n
                                    • Radiation<\/li>\n\n\n\n
                                    • Cleaning chemicals<\/li>\n\n\n\n
                                    • Sterilization method<\/li>\n\n\n\n
                                    • Installation environment<\/li>\n<\/ul>\n\n\n\n

                                      For example, a sapphire window used in a semiconductor chamber may have very different cleanliness, vacuum and particle-control requirements from a protective window used on an outdoor camera.<\/p>\n\n\n\n

                                      14. Include Quantity and Production Stage<\/h2>\n\n\n\n

                                      The quotation should state whether the order is for:<\/p>\n\n\n\n

                                        \n
                                      • Engineering samples<\/li>\n\n\n\n
                                      • Prototype verification<\/li>\n\n\n\n
                                      • Pilot production<\/li>\n\n\n\n
                                      • Regular batch production<\/li>\n\n\n\n
                                      • Annual blanket demand<\/li>\n\n\n\n
                                      • Replacement parts<\/li>\n<\/ul>\n\n\n\n

                                        Provide:<\/p>\n\n\n\n

                                          \n
                                        • Initial order quantity<\/li>\n\n\n\n
                                        • Expected annual quantity<\/li>\n\n\n\n
                                        • Number of releases<\/li>\n\n\n\n
                                        • Target delivery date<\/li>\n\n\n\n
                                        • Forecasted repeat frequency<\/li>\n\n\n\n
                                        • Whether sample approval is required before mass production<\/li>\n<\/ul>\n\n\n\n

                                          Quantity can affect the manufacturing method, material utilization, fixture design, inspection plan and unit price.<\/p>\n\n\n\n

                                          A prototype order may require more engineering work per piece, while repeat production may allow the manufacturer to optimize tooling and inspection procedures.<\/p>\n\n\n\n

                                          15. List the Required Quality Documents<\/h2>\n\n\n\n

                                          Tell the supplier which documents must be delivered with the sapphire windows.<\/p>\n\n\n\n

                                          Possible documents include:<\/p>\n\n\n\n

                                            \n
                                          • Certificate of conformance<\/li>\n\n\n\n
                                          • Material certificate<\/li>\n\n\n\n
                                          • Crystal-orientation report<\/li>\n\n\n\n
                                          • Dimensional inspection report<\/li>\n\n\n\n
                                          • Surface-quality inspection report<\/li>\n\n\n\n
                                          • Flatness interferogram<\/li>\n\n\n\n
                                          • Transmitted wavefront interferogram<\/li>\n\n\n\n
                                          • Surface-roughness report<\/li>\n\n\n\n
                                          • Coating transmission or reflection curve<\/li>\n\n\n\n
                                          • Coating durability report<\/li>\n\n\n\n
                                          • Laser-damage test report<\/li>\n\n\n\n
                                          • First article inspection report<\/li>\n\n\n\n
                                          • Lot traceability record<\/li>\n\n\n\n
                                          • RoHS or REACH declaration<\/li>\n\n\n\n
                                          • Packaging inspection record<\/li>\n<\/ul>\n\n\n\n

                                            Request only documents that are relevant to qualification and acceptance.<\/p>\n\n\n\n

                                            Additional inspection reports can increase confidence and traceability, but they also add inspection time and cost.<\/p>\n\n\n\n

                                            16. Define Packaging and Cleanliness Requirements<\/h2>\n\n\n\n

                                            Packaging is particularly important for polished and coated sapphire windows.<\/p>\n\n\n\n

                                            The RFQ should state:<\/p>\n\n\n\n

                                              \n
                                            • Individual or bulk packaging<\/li>\n\n\n\n
                                            • Cleanroom packaging requirement<\/li>\n\n\n\n
                                            • Double-bagging requirement<\/li>\n\n\n\n
                                            • Noncontact optical-surface protection<\/li>\n\n\n\n
                                            • Lens tissue or protective film restrictions<\/li>\n\n\n\n
                                            • Packaging material restrictions<\/li>\n\n\n\n
                                            • Particle or cleanliness limits<\/li>\n\n\n\n
                                            • Label information<\/li>\n\n\n\n
                                            • Lot separation<\/li>\n\n\n\n
                                            • Desiccant requirement<\/li>\n\n\n\n
                                            • Export packaging requirement<\/li>\n<\/ul>\n\n\n\n

                                              The customer should also state whether the sapphire window will be cleaned again before assembly or must be supplied ready for direct installation.<\/p>\n\n\n\n

                                              Custom Sapphire Window RFQ Checklist<\/h2>\n\n\n\n

                                              Use the following checklist before sending your inquiry.<\/p>\n\n\n\n

                                              Part Information<\/h3>\n\n\n\n
                                                \n
                                              • Part name:<\/li>\n\n\n\n
                                              • Drawing number:<\/li>\n\n\n\n
                                              • Drawing revision:<\/li>\n\n\n\n
                                              • Application:<\/li>\n\n\n\n
                                              • Sapphire orientation:<\/li>\n\n\n\n
                                              • Overall dimensions:<\/li>\n\n\n\n
                                              • Dimensional tolerances:<\/li>\n\n\n\n
                                              • Clear aperture:<\/li>\n\n\n\n
                                              • Edge geometry:<\/li>\n\n\n\n
                                              • Special holes, grooves or steps:<\/li>\n<\/ul>\n\n\n\n

                                                Optical Requirements<\/h3>\n\n\n\n
                                                  \n
                                                • Operating wavelength:<\/li>\n\n\n\n
                                                • Angle of incidence:<\/li>\n\n\n\n
                                                • Polarization:<\/li>\n\n\n\n
                                                • \u0e04\u0e38\u0e13\u0e20\u0e32\u0e1e\u0e1c\u0e34\u0e27:<\/li>\n\n\n\n
                                                • \u0e04\u0e27\u0e32\u0e21\u0e40\u0e23\u0e35\u0e22\u0e1a\u0e02\u0e2d\u0e07\u0e1c\u0e34\u0e27:<\/li>\n\n\n\n
                                                • Parallelism or wedge:<\/li>\n\n\n\n
                                                • Transmitted wavefront:<\/li>\n\n\n\n
                                                • Surface roughness:<\/li>\n\n\n\n
                                                • Coating type:<\/li>\n\n\n\n
                                                • Transmission requirement:<\/li>\n\n\n\n
                                                • Reflection requirement:<\/li>\n\n\n\n
                                                • Laser parameters:<\/li>\n<\/ul>\n\n\n\n

                                                  Environmental and Mechanical Requirements<\/h3>\n\n\n\n
                                                    \n
                                                  • Operating temperature:<\/li>\n\n\n\n
                                                  • \u0e04\u0e27\u0e32\u0e21\u0e14\u0e31\u0e19:<\/li>\n\n\n\n
                                                  • Vacuum level:<\/li>\n\n\n\n
                                                  • Unsupported aperture:<\/li>\n\n\n\n
                                                  • Mounting method:<\/li>\n\n\n\n
                                                  • Sealing method:<\/li>\n\n\n\n
                                                  • Chemical exposure:<\/li>\n\n\n\n
                                                  • Thermal cycling:<\/li>\n\n\n\n
                                                  • Cleaning or sterilization method:<\/li>\n<\/ul>\n\n\n\n

                                                    Commercial Requirements<\/h3>\n\n\n\n
                                                      \n
                                                    • Prototype quantity:<\/li>\n\n\n\n
                                                    • Production quantity:<\/li>\n\n\n\n
                                                    • Estimated annual demand:<\/li>\n\n\n\n
                                                    • Required delivery date:<\/li>\n\n\n\n
                                                    • Inspection reports:<\/li>\n\n\n\n
                                                    • Certification requirements:<\/li>\n\n\n\n
                                                    • Packaging requirements:<\/li>\n\n\n\n
                                                    • Shipping destination:<\/li>\n<\/ul>\n\n\n\n

                                                      Example of a Clear Sapphire Window RFQ<\/h2>\n\n\n\n

                                                      A useful RFQ could be written as follows:<\/p>\n\n\n\n

                                                      \n

                                                      Please quote custom C-plane sapphire windows according to the attached drawing.<\/p>\n\n\n\n

                                                      Finished size: \u00d850.00 mm \u00d7 3.00 mm
                                                      Quantity: 10 prototype pieces and 100 production pieces
                                                      Application: protective optical window for a machine-vision camera
                                                      Operating wavelength: visible and near-infrared range
                                                      Clear aperture: central 45 mm
                                                      Both major surfaces: optical polished
                                                      Surface quality, flatness and dimensional tolerances: according to drawing
                                                      Edge: specified protective chamfer
                                                      Coating: broadband AR coating on both optical surfaces
                                                      Mounting: elastomer-sealed mechanical housing
                                                      Operating temperature: according to attached system specification
                                                      Required documents: material certificate, dimensional report and coating curve
                                                      Packaging: individually packed with protected optical surfaces<\/p>\n\n\n\n

                                                      Please provide unit price, tooling or engineering charges, sample lead time and production lead time.<\/p>\n<\/blockquote>\n\n\n\n

                                                      This format gives the manufacturer enough information to identify missing items and prepare a technically meaningful quotation.<\/p>\n\n\n\n

                                                      Common RFQ Mistakes to Avoid<\/h2>\n\n\n\n

                                                      Sending Only a Photograph<\/h3>\n\n\n\n

                                                      A photograph may help explain the application, but it cannot replace a dimensioned drawing.<\/p>\n\n\n\n

                                                      Requesting \u201cBest Tolerance\u201d<\/h3>\n\n\n\n

                                                      The tightest achievable tolerance is not always the best commercial or engineering choice. Specify the tolerance required by the assembly.<\/p>\n\n\n\n

                                                      Omitting the Wavelength<\/h3>\n\n\n\n

                                                      The wavelength affects coating design and optical inspection.<\/p>\n\n\n\n

                                                      Failing to Define the Clear Aperture<\/h3>\n\n\n\n

                                                      Without a clear aperture, cosmetic and optical requirements may be interpreted differently by the customer and manufacturer.<\/p>\n\n\n\n

                                                      Using \u201cAR Coating\u201d as the Complete Coating Specification<\/h3>\n\n\n\n

                                                      State the wavelength, angle, polarization and required optical performance.<\/p>\n\n\n\n

                                                      Ignoring the Mounting Method<\/h3>\n\n\n\n

                                                      The window thickness and edge design cannot be evaluated properly without understanding the support and seal arrangement.<\/p>\n\n\n\n

                                                      Requesting Reports After Production<\/h3>\n\n\n\n

                                                      Inspection and documentation requirements should be included before quotation and order confirmation.<\/p>\n\n\n\n

                                                      \u0e04\u0e33\u0e16\u0e32\u0e21\u0e17\u0e35\u0e48\u0e1e\u0e1a\u0e1a\u0e48\u0e2d\u0e22<\/h2>\n\n\n\n

                                                      Can I Request a Quote Without a Finished Drawing?<\/h3>\n\n\n\n

                                                      Yes. A supplier may provide an initial feasibility review based on a sketch, application description and target dimensions.<\/p>\n\n\n\n

                                                      However, a controlled drawing should normally be approved before production begins.<\/p>\n\n\n\n

                                                      Is a 3D Model Enough for Quotation?<\/h3>\n\n\n\n

                                                      A 3D model is useful for complex geometry, but it may not contain complete optical tolerances, surface-quality notes or inspection requirements.<\/p>\n\n\n\n

                                                      Provide a dimensioned 2D drawing whenever possible.<\/p>\n\n\n\n

                                                      Do I Need to Specify the Sapphire Crystal Orientation?<\/h3>\n\n\n\n

                                                      Specify the orientation when it is required by the optical, polarization, thermal or mechanical design.<\/p>\n\n\n\n

                                                      For a general protective application, the manufacturer may be able to recommend a suitable orientation.<\/p>\n\n\n\n

                                                      Why Does the Supplier Need the Annual Quantity?<\/h3>\n\n\n\n

                                                      Annual demand helps the supplier evaluate raw-material planning, fixture investment, inspection strategy and potential volume pricing.<\/p>\n\n\n\n

                                                      What Information Is Most Important for a Fast Preliminary Quote?<\/h3>\n\n\n\n

                                                      At minimum, provide:<\/p>\n\n\n\n

                                                        \n
                                                      • Drawing or dimensioned sketch<\/li>\n\n\n\n
                                                      • Overall dimensions<\/li>\n\n\n\n
                                                      • \u0e1b\u0e23\u0e34\u0e21\u0e32\u0e13<\/li>\n\n\n\n
                                                      • Surface finish<\/li>\n\n\n\n
                                                      • \u0e04\u0e38\u0e13\u0e20\u0e32\u0e1e\u0e1c\u0e34\u0e27<\/li>\n\n\n\n
                                                      • Flatness or wavefront requirement<\/li>\n\n\n\n
                                                      • \u0e02\u0e49\u0e2d\u0e01\u0e33\u0e2b\u0e19\u0e14\u0e40\u0e01\u0e35\u0e48\u0e22\u0e27\u0e01\u0e31\u0e1a\u0e0a\u0e31\u0e49\u0e19\u0e40\u0e04\u0e25\u0e37\u0e2d\u0e1a<\/li>\n\n\n\n
                                                      • \u0e04\u0e27\u0e32\u0e21\u0e22\u0e32\u0e27\u0e04\u0e25\u0e37\u0e48\u0e19\u0e01\u0e32\u0e23\u0e17\u0e33\u0e07\u0e32\u0e19<\/li>\n\n\n\n
                                                      • Application and environment<\/li>\n\n\n\n
                                                      • Required documentation<\/li>\n<\/ul>\n\n\n\n

                                                        \u0e2a\u0e23\u0e38\u0e1b<\/h2>\n\n\n\n

                                                        An accurate custom sapphire window quote depends on more than diameter, thickness and quantity.<\/p>\n\n\n\n

                                                        The most effective RFQ combines a controlled engineering drawing with clearly defined optical, mechanical, environmental, coating, inspection and commercial requirements.<\/p>\n\n\n\n

                                                        Providing complete information at the beginning can help reduce repeated technical questions, avoid specification misunderstandings and shorten the transition from feasibility review to prototype production.<\/p>\n\n\n\n

                                                        For a custom sapphire window quotation, send your drawing together with the dimensions, quantity, wavelength, surface-quality requirement, coating specification and operating conditions. Our engineering team can review the design for manufacturability and identify any information needed before production.<\/p>","protected":false},"excerpt":{"rendered":"

                                                        Custom sapphire windows are rarely selected from a completely standard catalog. Even when two parts have the same diameter and thickness, differences in surface quality, flatness, crystal orientation, coating performance, edge geometry and inspection requirements can produce significantly different manufacturing processes and quotations. A complete request for quotation, or RFQ, helps the sapphire window manufacturer […]<\/p>\n","protected":false},"author":1,"featured_media":2681,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[17],"tags":[602,165,1074,1044,29,604,856,857,369],"class_list":["post-2680","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news","tag-ar-coated-sapphire-window","tag-custom-sapphire-window","tag-optical-window-drawing","tag-precision-sapphire-optics","tag-sapphire-optical-windows","tag-sapphire-window-manufacturer","tag-sapphire-window-rfq","tag-sapphire-window-specifications","tag-sapphire-window-supplier"],"_links":{"self":[{"href":"https:\/\/www.sapphire-windows.com\/th\/wp-json\/wp\/v2\/posts\/2680","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sapphire-windows.com\/th\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sapphire-windows.com\/th\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sapphire-windows.com\/th\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sapphire-windows.com\/th\/wp-json\/wp\/v2\/comments?post=2680"}],"version-history":[{"count":1,"href":"https:\/\/www.sapphire-windows.com\/th\/wp-json\/wp\/v2\/posts\/2680\/revisions"}],"predecessor-version":[{"id":2682,"href":"https:\/\/www.sapphire-windows.com\/th\/wp-json\/wp\/v2\/posts\/2680\/revisions\/2682"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sapphire-windows.com\/th\/wp-json\/wp\/v2\/media\/2681"}],"wp:attachment":[{"href":"https:\/\/www.sapphire-windows.com\/th\/wp-json\/wp\/v2\/media?parent=2680"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sapphire-windows.com\/th\/wp-json\/wp\/v2\/categories?post=2680"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sapphire-windows.com\/th\/wp-json\/wp\/v2\/tags?post=2680"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}