High Transmission AR Coated Sapphire Optical Window 25.4mm UV IR Grade
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Detailed Product Description
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High Transmission AR Coated Sapphire Optical Window 25.4mm UV IR
Grade This high transmission AR coated sapphire optical window delivers
the light efficiency that precision imaging and sensor systems
demand. The 25.4mm window is fabricated from single crystal
sapphire and polished on both sides to a 20-10 scratch-dig surface
quality, then coated with a broadband anti-reflective layer that
lifts transmission above 97 percent across the visible range and
maintains strong performance into the UV and IR bands. Sapphire was selected as the substrate because it combines the
transmission performance of an optical window with the mechanical
durability of a protective component. The high transmission
sapphire window resists scratching, thermal shock, and chemical
attack, which makes it suitable for applications where the window
is exposed to cleaning, weather, or process environments. Technical Specifications
Key Advantages
Typical installations include industrial camera housings,
spectroscopy equipment, laser delivery systems, and outdoor sensor
enclosures where a high transmission sapphire window protects the
optics while preserving signal strength. Because the AR coated
sapphire optical window is specified with both optical and
mechanical performance in mind, design teams can use a single
component for protection and imaging instead of stacking separate
parts. Product Q&A Q: How much does the AR coating improve transmission? Uncoated sapphire reflects about 7 percent per surface, losing
roughly 14 percent total. The broadband AR coating on this sapphire
optical window reduces reflection to under 1.5 percent per surface,
raising total transmission above 97 percent in the visible band and
above 85 percent across the UV and IR ranges where sapphire
naturally transmits. Q: Can the coating be optimized for a specific wavelength? Yes. The standard broadband AR design covers 400-700nm, but we
regularly produce coatings centered on 1064nm for laser systems,
3-5um for MWIR cameras, and dual-band designs for fluorescence or
multi-spectral instruments. Provide your operating wavelength and
we will tune the coating stack. Q: Why choose sapphire over fused silica or BK7 for a window? Sapphire offers Mohs 9 hardness, roughly three times the mechanical
strength of fused silica, and superior chemical resistance, while
still transmitting from the UV through the mid-infrared. If your
window must survive harsh environments and still deliver high
transmission, sapphire is the balanced choice. Q: What inspection data is included with the windows? Each batch ships with surface quality inspection records,
dimensional certificates, coating adhesion test results, and a
measured spectral transmission curve. This documentation supports
incoming inspection and medical or industrial quality programs. |
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| Product Tags: High Transmission Sapphire Window AR Coated Optical Window UV IR Sapphire Optics |
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