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Views: 6 Author: Site Editor Publish Time: 2021-09-01 Origin: Site
Chalcogenide materials is an effective substitute for germanium infrared crystal material and an ideal candidate for infrared optical element.
Chalcogenide glass is sulfur element and other metallic or nonmetallic elements to form the floorboard of the amorphous material (glass), chalcogenide glass has high transmittance in infrared region, but its spectral properties along with the change of composition is different also, sulfide glass in visible parts have passed, and selenium antimonide glass in the visible part is not through, they only in near infrared and infrared region has passed.The processing efficiency of ch4 glass is high, and it can be precisely moulded, which is more than 10 times higher than diamond turning. The raw material cost is 1/3 of germanium single crystal. In temperature adaptation, germanium single crystal is more "delicate", temperature change, image instability. Cherry-glass can withstand a temperature difference of 110 degrees from minus 40 degrees Celsius to 70 degrees above zero without pressure.
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