冷鏡
冷鏡是熱鏡的反面，它反射可見光并透射紅外光。 它們的涂層都是**面的，并且像熱鏡一樣，也沉積在低膨脹率的材料上，例如硼硅酸鹽玻璃。 這些反射鏡通常在隨機偏振光中以45°入射角使用。
cold mirror general specifications
thickness: 3.0mm ±0.5mm
size tolerance: +0.0mm/-0.5mm
min. clear aperture: 95% of outside dimension
substrate material: borosilicate glass
flatness: 5–10 waves per 25mm
parallelism: 3 arc minutes or better
surface quality: 80/50 per mil-o-13830
humidity and abrasion: per mil-c-67**
max. operating temperature: +200°c
mechanical: unmounted
description part no.
cold mirror, 25mm diameter x 3mm thick 645fk84-25
cold mirror, 50mm diameter x 3mm thick 645fk84-50
cold mirror, 50mm x 50mm x 3mm thick 645fk84-50s
熱鏡
熱鏡按其名稱說明執(zhí)行：它們反射熱量并透射可見光。 所有涂層均被歸類為堅硬的**表面電介質(zhì)，并且將達(dá)到或超過規(guī)定的濕度和磨損規(guī)范。 為防止高溫應(yīng)用導(dǎo)致開裂或開裂，所有涂層均沉積在低膨脹材料（例如硼硅酸鹽玻璃）上。
hot mirror general specifications
thickness: 3.0mm ±0.5mm
size tolerance: +0.0mm/-0.5mm
min. clear aperture: 95% of outside dimension
substrate material: borosilicate glass
flatness: 5–10 waves per 25mm
parallelism: 3 arc minutes or better
surface quality: 80/50 per mil-o-13830
humidity and abrasion: per mil-c-67**
max. operating temperature: +200°c
mechanical: unmounted
description part no.
hot mirror, 512mm diameter x 3mm thick 775fw82-12.5
hot mirror, 25mm diameter x 3mm thick 775fw82-25
hot mirror, 50mm diameter x 3mm thick 775fw82-50
hot mirror, 50mm x 50mm x 3mm thick 775fw82-50s