{"id":2348,"date":"2026-03-24T07:21:34","date_gmt":"2026-03-24T07:21:34","guid":{"rendered":"https:\/\/www.sapphire-windows.com\/?post_type=product&#038;p=2348"},"modified":"2026-03-27T07:23:05","modified_gmt":"2026-03-27T07:23:05","slug":"high-purity-sapphire-optical-windows-custom-precision-polished-transparent-optical-components","status":"publish","type":"product","link":"https:\/\/www.sapphire-windows.com\/zh\/product\/high-purity-sapphire-optical-windows-custom-precision-polished-transparent-optical-components\/","title":{"rendered":"High Purity Sapphire Optical Windows Custom Precision Polished Transparent Optical Components"},"content":{"rendered":"<p data-start=\"272\" data-end=\"585\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-medium wp-image-2350 alignleft\" src=\"https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/3sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/3sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws-300x300.jpg 300w, https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/3sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws-150x150.jpg 150w, https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/3sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws-768x768.jpg 768w, https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/3sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws-12x12.jpg 12w, https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/3sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws-600x600.jpg 600w, https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/3sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws-100x100.jpg 100w, https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/3sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>Sapphire optical windows are high-performance transparent components manufactured from monocrystalline aluminum oxide (Al\u2082O\u2083). Produced using advanced crystal growth methods such as the Kyropoulos (KY) process, these windows offer exceptional mechanical strength, optical clarity, and environmental stability.<\/p>\n<p data-start=\"587\" data-end=\"779\">With a hardness second only to diamond, sapphire is an ideal material for demanding optical and protective applications where conventional glass cannot meet durability or thermal requirements.<\/p>\n<h1 data-section-id=\"8av2ty\" data-start=\"786\" data-end=\"804\"><span role=\"text\"><img decoding=\"async\" class=\"size-medium wp-image-2351 alignright\" src=\"https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/2sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/2sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws-300x300.jpg 300w, https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/2sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws-150x150.jpg 150w, https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/2sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws-768x768.jpg 768w, https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/2sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws-12x12.jpg 12w, https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/2sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws-600x600.jpg 600w, https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/2sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws-100x100.jpg 100w, https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/2sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\u4e3b\u8981\u529f\u80fd<\/span><\/h1>\n<ul data-start=\"806\" data-end=\"1773\">\n<li data-section-id=\"k2zwpw\" data-start=\"806\" data-end=\"964\">Ultra-High Purity Material<br data-start=\"838\" data-end=\"841\" \/>Synthetic sapphire with purity up to 99.999% Al\u2082O\u2083, ensuring stable optical performance and minimal impurities.<\/li>\n<li data-section-id=\"kehifa\" data-start=\"966\" data-end=\"1102\">Outstanding Hardness &amp; Wear Resistance<br data-start=\"1010\" data-end=\"1013\" \/>Mohs hardness of 9.0, providing excellent scratch resistance and long service life.<\/li>\n<li data-section-id=\"1im6g5z\" data-start=\"1104\" data-end=\"1264\">\u5bec\u5ee3\u7684\u5149\u5b78\u50b3\u8f38\u7bc4\u570d<br data-start=\"1141\" data-end=\"1144\" \/>High transmission from UV to IR spectrum (approx. 200 nm \u2013 5.5 \u03bcm), suitable for multi-wavelength optical systems.<\/li>\n<li data-section-id=\"p437xv\" data-start=\"1266\" data-end=\"1408\">Excellent Thermal Stability<br data-start=\"1299\" data-end=\"1302\" \/>Melting point ~2050\u00b0C, maintaining performance in extreme environments.<\/li>\n<li data-section-id=\"v5b4kb\" data-start=\"1410\" data-end=\"1532\">Superior Chemical Resistance<br data-start=\"1444\" data-end=\"1447\" \/>Resistant to acids, alkalis, and harsh chemicals, ideal for corrosive environments.<\/li>\n<li data-section-id=\"j0v2b7\" data-start=\"1534\" data-end=\"1642\">Precision Surface Quality<br data-start=\"1565\" data-end=\"1568\" \/>Optical-grade polishing ensures low scattering and high imaging clarity.<\/li>\n<li data-section-id=\"1ff1o7e\" data-start=\"1644\" data-end=\"1773\">Customizable Design<br data-start=\"1669\" data-end=\"1672\" \/>Available in customized shapes, sizes, thicknesses, and coatings based on application requirements.<\/li>\n<\/ul>\n<h1 data-section-id=\"10k15yz\" data-start=\"1780\" data-end=\"1810\"><span role=\"text\">\u6280\u8853\u898f\u683c<\/span><\/h1>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"1812\" data-end=\"2765\">\n<thead data-start=\"1812\" data-end=\"1871\">\n<tr data-start=\"1812\" data-end=\"1871\">\n<th class=\"\" data-start=\"1812\" data-end=\"1837\" data-col-size=\"sm\">\u53c3\u6578<\/th>\n<th class=\"\" data-start=\"1837\" data-end=\"1871\" data-col-size=\"md\">\u50f9\u503c<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"1930\" data-end=\"2765\">\n<tr data-start=\"1930\" data-end=\"1989\">\n<td data-start=\"1930\" data-end=\"1953\" data-col-size=\"sm\">\u6750\u8cea<\/td>\n<td data-start=\"1953\" data-end=\"1989\" data-col-size=\"md\">Monocrystalline Al\u2082O\u2083 (Sapphire)<\/td>\n<\/tr>\n<tr data-start=\"1990\" data-end=\"2047\">\n<td data-start=\"1990\" data-end=\"2013\" data-col-size=\"sm\">Purity<\/td>\n<td data-start=\"2013\" data-end=\"2047\" data-col-size=\"md\">\u2265 99.999%<\/td>\n<\/tr>\n<tr data-start=\"2048\" data-end=\"2105\">\n<td data-start=\"2048\" data-end=\"2071\" data-col-size=\"sm\">\u5bc6\u5ea6<\/td>\n<td data-start=\"2071\" data-end=\"2105\" data-col-size=\"md\">3.98 g\/cm\u00b3<\/td>\n<\/tr>\n<tr data-start=\"2106\" data-end=\"2163\">\n<td data-start=\"2106\" data-end=\"2129\" data-col-size=\"sm\">\u786c\u5ea6<\/td>\n<td data-start=\"2129\" data-end=\"2163\" data-col-size=\"md\">\u83ab\u6c0f 9<\/td>\n<\/tr>\n<tr data-start=\"2164\" data-end=\"2243\">\n<td data-start=\"2164\" data-end=\"2187\" data-col-size=\"sm\">Optical Transmission<\/td>\n<td data-start=\"2187\" data-end=\"2243\" data-col-size=\"md\">~85% (visible range, depends on thickness &amp; coating)<\/td>\n<\/tr>\n<tr data-start=\"2244\" data-end=\"2301\">\n<td data-start=\"2244\" data-end=\"2267\" data-col-size=\"sm\">\u76f4\u5f91<\/td>\n<td data-start=\"2267\" data-end=\"2301\" data-col-size=\"md\">3\u201325 mm (customizable)<\/td>\n<\/tr>\n<tr data-start=\"2302\" data-end=\"2359\">\n<td data-start=\"2302\" data-end=\"2325\" data-col-size=\"sm\">Thickness<\/td>\n<td data-start=\"2325\" data-end=\"2359\" data-col-size=\"md\">2\u201325 mm<\/td>\n<\/tr>\n<tr data-start=\"2360\" data-end=\"2417\">\n<td data-start=\"2360\" data-end=\"2383\" data-col-size=\"sm\">Diameter Tolerance<\/td>\n<td data-start=\"2383\" data-end=\"2417\" data-col-size=\"md\">+0.0 \/ -0.1 mm<\/td>\n<\/tr>\n<tr data-start=\"2418\" data-end=\"2475\">\n<td data-start=\"2418\" data-end=\"2441\" data-col-size=\"sm\">\u539a\u5ea6\u516c\u5dee<\/td>\n<td data-start=\"2441\" data-end=\"2475\" data-col-size=\"md\">\u00b10.2 mm<\/td>\n<\/tr>\n<tr data-start=\"2476\" data-end=\"2533\">\n<td data-start=\"2476\" data-end=\"2499\" data-col-size=\"sm\">Surface Quality<\/td>\n<td data-start=\"2499\" data-end=\"2533\" data-col-size=\"md\">40\/20 (Scratch\/Dig)<\/td>\n<\/tr>\n<tr data-start=\"2534\" data-end=\"2591\">\n<td data-start=\"2534\" data-end=\"2557\" data-col-size=\"sm\">Surface Flatness<\/td>\n<td data-start=\"2557\" data-end=\"2591\" data-col-size=\"md\">\u03bb\/4 @ 633 nm<\/td>\n<\/tr>\n<tr data-start=\"2592\" data-end=\"2649\">\n<td data-start=\"2592\" data-end=\"2615\" data-col-size=\"sm\">Parallelism<\/td>\n<td data-start=\"2615\" data-end=\"2649\" data-col-size=\"md\">&lt; 30 arcsec<\/td>\n<\/tr>\n<tr data-start=\"2650\" data-end=\"2707\">\n<td data-start=\"2650\" data-end=\"2673\" data-col-size=\"sm\">Edge Treatment<\/td>\n<td data-start=\"2673\" data-end=\"2707\" data-col-size=\"md\">Bevel 0.2\u20130.5 mm \u00d7 45\u00b0<\/td>\n<\/tr>\n<tr data-start=\"2708\" data-end=\"2765\">\n<td data-start=\"2708\" data-end=\"2731\" data-col-size=\"sm\">Growth Method<\/td>\n<td data-start=\"2731\" data-end=\"2765\" data-col-size=\"md\">KY (Kyropoulos)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<h1 data-section-id=\"1p00fbj\" data-start=\"2772\" data-end=\"2790\"><span role=\"text\"><img decoding=\"async\" class=\"size-medium wp-image-2352 alignleft\" src=\"https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws1-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws1-300x300.jpg 300w, https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws1-150x150.jpg 150w, https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws1-768x768.jpg 768w, https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws1-12x12.jpg 12w, https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws1-600x600.jpg 600w, https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws1-100x100.jpg 100w, https:\/\/www.sapphire-windows.com\/wp-content\/uploads\/2026\/03\/sapphire_optical_window_glass_al2o3_single_crystal_high_purity_transparent_polished_winodws1.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\u61c9\u7528<\/span><\/h1>\n<p data-start=\"2792\" data-end=\"2859\">Sapphire optical windows are widely used in high-demand industries:<\/p>\n<ul data-start=\"2861\" data-end=\"3183\">\n<li data-section-id=\"sabmmb\" data-start=\"2861\" data-end=\"2915\">Optical Instruments (lenses, protective windows)<\/li>\n<li data-section-id=\"6kj16n\" data-start=\"2916\" data-end=\"2973\">Laser Systems (high-power laser protection windows)<\/li>\n<li data-section-id=\"v3ha4p\" data-start=\"2974\" data-end=\"3003\">\u534a\u5c0e\u9ad4\u8a2d\u5099<\/li>\n<li data-section-id=\"10r135b\" data-start=\"3004\" data-end=\"3056\">Aerospace &amp; Defense (harsh environment optics)<\/li>\n<li data-section-id=\"1gd2q0\" data-start=\"3057\" data-end=\"3078\">Medical Devices<\/li>\n<li data-section-id=\"v5f445\" data-start=\"3079\" data-end=\"3137\">Consumer Electronics (camera covers, watch crystals)<\/li>\n<li data-section-id=\"e77esk\" data-start=\"3138\" data-end=\"3183\">Industrial Sensors &amp; Inspection Systems<\/li>\n<\/ul>\n<h1 data-section-id=\"hes5cc\" data-start=\"3190\" data-end=\"3240\"><span role=\"text\">Why Choose Sapphire Over Conventional Glass?<\/span><\/h1>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"3242\" data-end=\"3691\">\n<thead data-start=\"3242\" data-end=\"3307\">\n<tr data-start=\"3242\" data-end=\"3307\">\n<th class=\"\" data-start=\"3242\" data-end=\"3266\" data-col-size=\"sm\">\u8ca1\u7522<\/th>\n<th class=\"\" data-start=\"3266\" data-end=\"3285\" data-col-size=\"sm\">Sapphire (Al\u2082O\u2083)<\/th>\n<th class=\"\" data-start=\"3285\" data-end=\"3307\" data-col-size=\"sm\">Conventional Glass<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"3372\" data-end=\"3691\">\n<tr data-start=\"3372\" data-end=\"3435\">\n<td data-start=\"3372\" data-end=\"3395\" data-col-size=\"sm\">\u786c\u5ea6<\/td>\n<td data-start=\"3395\" data-end=\"3414\" data-col-size=\"sm\">9 (Mohs)<\/td>\n<td data-start=\"3414\" data-end=\"3435\" data-col-size=\"sm\">~5\u20136<\/td>\n<\/tr>\n<tr data-start=\"3436\" data-end=\"3499\">\n<td data-start=\"3436\" data-end=\"3459\" data-col-size=\"sm\">\u8010\u522e\u64e6<\/td>\n<td data-start=\"3459\" data-end=\"3478\" data-col-size=\"sm\">\u6975\u4f73<\/td>\n<td data-start=\"3478\" data-end=\"3499\" data-col-size=\"sm\">\u4e2d\u5ea6<\/td>\n<\/tr>\n<tr data-start=\"3500\" data-end=\"3563\">\n<td data-start=\"3500\" data-end=\"3523\" data-col-size=\"sm\">\u71b1\u963b<\/td>\n<td data-start=\"3523\" data-end=\"3542\" data-col-size=\"sm\">Very High<\/td>\n<td data-start=\"3542\" data-end=\"3563\" data-col-size=\"sm\">Limited<\/td>\n<\/tr>\n<tr data-start=\"3564\" data-end=\"3627\">\n<td data-start=\"3564\" data-end=\"3587\" data-col-size=\"sm\">Chemical Stability<\/td>\n<td data-start=\"3587\" data-end=\"3606\" data-col-size=\"sm\">\u6975\u4f73<\/td>\n<td data-start=\"3606\" data-end=\"3627\" data-col-size=\"sm\">\u4e2d\u5ea6<\/td>\n<\/tr>\n<tr data-start=\"3628\" data-end=\"3691\">\n<td data-start=\"3628\" data-end=\"3651\" data-col-size=\"sm\">Cost<\/td>\n<td data-start=\"3651\" data-end=\"3670\" data-col-size=\"sm\">Higher<\/td>\n<td data-start=\"3670\" data-end=\"3691\" data-col-size=\"sm\">Lower<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p data-start=\"3693\" data-end=\"3833\">Sapphire is preferred in high-reliability and harsh environments, where durability and long-term stability outweigh cost considerations.<\/p>\n<h1 data-section-id=\"6e6tyl\" data-start=\"3840\" data-end=\"3872\"><span role=\"text\">Customization Capabilities<\/span><\/h1>\n<p data-start=\"3874\" data-end=\"3930\">We support full customization based on your application:<\/p>\n<ul data-start=\"3932\" data-end=\"4135\">\n<li data-section-id=\"5tkpqc\" data-start=\"3932\" data-end=\"3968\">Custom diameters and thicknesses<\/li>\n<li data-section-id=\"7l7pal\" data-start=\"3969\" data-end=\"4021\">Complex shapes (round, square, special geometry)<\/li>\n<li data-section-id=\"zlljy3\" data-start=\"4022\" data-end=\"4062\">Double-side or single-side polishing<\/li>\n<li data-section-id=\"10xdkxa\" data-start=\"4063\" data-end=\"4105\">Optical coatings (AR, IR, UV coatings)<\/li>\n<li data-section-id=\"603rmv\" data-start=\"4106\" data-end=\"4135\">Tight tolerance machining<\/li>\n<\/ul>\n<h1 data-section-id=\"r6j2dd\" data-start=\"4142\" data-end=\"4166\"><span role=\"text\">Support &amp; Services<\/span><\/h1>\n<ul data-start=\"4168\" data-end=\"4460\">\n<li data-section-id=\"1tahlwz\" data-start=\"4168\" data-end=\"4242\">Technical Consultation: Material selection and design optimization<\/li>\n<li data-section-id=\"1uwt3y7\" data-start=\"4243\" data-end=\"4298\">Sample Support: Prototype development available<\/li>\n<li data-section-id=\"1y3xkbm\" data-start=\"4299\" data-end=\"4377\">Quality Assurance: Strict inspection standards for optical performance<\/li>\n<li data-section-id=\"e6k47b\" data-start=\"4378\" data-end=\"4460\">After-Sales Support: Ongoing technical assistance and application guidance<\/li>\n<\/ul>\n<h1 data-section-id=\"1iusff4\" data-start=\"4467\" data-end=\"4476\"><span role=\"text\">\u5e38\u898b\u554f\u984c<\/span><\/h1>\n<h3 data-section-id=\"147vgh3\" data-start=\"4478\" data-end=\"4551\">1. What is the difference between sapphire glass and regular glass?<\/h3>\n<p data-start=\"4552\" data-end=\"4729\">Sapphire glass is made from single-crystal Al\u2082O\u2083 and offers significantly higher hardness, scratch resistance, and thermal stability compared to conventional silica-based glass.<\/p>\n<h3 data-section-id=\"17sgkud\" data-start=\"4731\" data-end=\"4782\">2. What are alternatives to sapphire windows?<\/h3>\n<p data-start=\"4783\" data-end=\"4969\">Common alternatives include tempered glass and chemically strengthened glass (e.g., aluminosilicate glass). While more cost-effective, they cannot match sapphire in extreme environments.<\/p>","protected":false},"excerpt":{"rendered":"<p>Sapphire optical windows are high-performance transparent components manufactured from monocrystalline aluminum oxide (Al\u2082O\u2083). Produced using advanced crystal growth methods such as the Kyropoulos (KY) process, these windows offer exceptional mechanical strength, optical clarity, and environmental stability.<\/p>","protected":false},"featured_media":2349,"comment_status":"open","ping_status":"closed","template":"","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":"default","adv-header-id-meta":"","stick-header-meta":"default","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 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