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: HOT AND COLD MIRRORS |
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Hot Mirrors are used in applications when there is the requirement to separate visible light from heat. The hot mirror accomplishes this by reflecting the heat. The use of Borosilicate type glass allows operation in high temperatures. Operation at an AOI of 0º is preferred. The most common wavelength range for an average transmission of 85% through the hot mirror is 420 - 700nm. The reflective range for the hot mirror for R>95% is 800 - 1000nm. Additionally, R>50% from 735 - 1080nm.
Cold Mirrors are used where the requirements are to reflect visible light and remove the heat by transmission. Operation at an AOI of 45º is preferred. The most common wavelength range for transmission through the cold mirror is 800 - 1200nm. The average transmission range is T>85%. Additionally, R>95% for 400 - 700nm. |
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Features of Hot Mirrors
. High transmission for the visible range
. High reflection for infrared
. Removes heat
. Uses Borofloat® type glass
. Dielectric Coating
. AOI's of 0º or 45º
. Custom mirrors to your configuration
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Features of Cold Mirrors
. High reflection for the visible range
. High transmission for infrared
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Typical Specifications - Hot Mirrors
Material: Borosilicate type Glass
Size: 15mm to 300mm
Thickness: 3.3mm
Mirror coating: Dielectric multilayer
Transmission: Tave>85% for 425 - 700nm
Reflection: Rave>90% for750 - 1050nm
Surface Finish: 80-50
Flatness: ?/2 @633nm per inch
Protective Bevel: 0.3mm x 45º
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Typical Specifications - Cold Mirrors
Material: Borosilicate type Glass
Size: 15mm to 300mm
Thickness: 3.3mm
Mirror coating: Dielectric multilayer
Transmission: Tave>85% for 750 - 1000nm
Reflection: Rave>90% for400 - 700nm
Surface Finish: 80-50
Flatness: ?/2 @633nm per inch
Protective Bevel: 0.3mm x 45º
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Tower Optical is a precision optics manufacturer
offering short lead times, excellent products, and
competitive prices.
Tower Optical Corporation
3600 S. Congress Avenue, Unit J
Boynton Beach, FL 33426
Email: sales@toweroptical.com
Phone: 1-561-740-2525
Toll Free: 1-800-526-7560
Fax: 1-561-740-2518
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©2010 contact Tower Optical Corporation for
Quality precision optics including Waveplates, Achromatic Waveplates, Retarders, Lenses, Prisms, Filters, Beam Splitters and Polarizers.
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