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Cheshire OpticalOptical Filters for Research & Technology Manufacturer and Supplier of Optical Interference Filters, Optical Bandpass Filters, Narrowband Filters, Hot Mirrors, OEM, Color Process Filters and Neutral Density Filters for Research and Technology |
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Technical Information
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Our Heat Control Filters direct the desired portion of an illumination spectrum through an optical system, while diverting the unnecessary and potentially detrimental portion of the source energy. Our Heat Control Filters are made with dielectric hard coatings deposited on heat resistant borosilicate glass substrates, producing highly stable and durable optics that exceed the adherence, abrasion, hardness and durability standards of Mil-C-675A and Mil-M-13508C. (See General specifications for specs on these filters) 45° Cold Mirror, Hot Mirror, 45° Ultraviolet Cold Mirror
45° Cold Mirror Top of Page 95% Minimum Average Reflection From 425nm to 650nm 50% Cut-on at 680nm +/- 12nm 85% Minimum Average Transmission from 700nm to 2000nm
Hot Mirror Top of Page 95% Minimum Average Reflection From 720nm to 1150nm 50% Cut-off at 700nm +/- 12nm 85% Minimum Average Transmission from 420nm to 675nm
45° Ultraviolet Cold Mirror Top of Page 95% Minimum Average Reflection From 325nm to 475nm 50% Cut-on at 500nm +/- 15nm 85% Minimum Average Transmission from 600nm to 1200nm
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