Optics

Nightvision filter glass

Aug. 1, 1994

Bluecolored filter glass S8612 is designed for maximum performance in the visible spectrum and completely attenuates transmission in the nearIR. The glass exhibits a peak transmission of 90% at 500 nm and has less than 2% at 700 nm. The coefficient of expansion between 20°C and 300°C is 96 ¥ 107. Stock sizes of 165.1 ¥ 165.1 mm are available in standard thicknesses of 34 mm. Filters with custom dimensions, configurations, surface qualities, and tolerances can be requested.

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