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Transparent Heater

Photonics Spectra
Sep 2010
Dontech Inc.Request Info
 
For temperature control of optical, lens and display assemblies, Dontech Inc.’s Therma Klear transparent heaters provide the warmth necessary to extend the operating temperature of LCDs in cold environments from 0 to below —40 °C and for the antifog, anti-icing and de-icing of optics and optical camera, sensor and display assemblies. The heaters comprise an electrically conductive thin-film coating on a visually transparent substrate. When current flows across the coating, it generates heat. The heaters are manufactured using different types of crystalline materials such as zinc sulfide, germanium, glass, acrylic and polycarbonate substrates. Applications include avionics displays, vehicle displays, mobile computers, kiosks and handheld electronic devices. Custom shapes are available in sizes up to 610 mm in diameter.


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GLOSSARY
acrylic
A thermoplastic or optically transmitting hard plastic produced by applying polymerization initiator and heat to a monomer.
germanium
A crystalline semiconductor material that transmits in the infrared.
glass
A noncrystalline, inorganic mixture of various metallic oxides fused by heating with glassifiers such as silica, or boric or phosphoric oxides. Common window or bottle glass is a mixture of soda, lime and sand, melted and cast, rolled or blown to shape. Most glasses are transparent in the visible spectrum and up to about 2.5 µm in the infrared, but some are opaque such as natural obsidian; these are, nevertheless, useful as mirror blanks. Traces of some elements such as cobalt, copper and...
lens
A transparent optical component consisting of one or more pieces of optical glass with surfaces so curved (usually spherical) that they serve to converge or diverge the transmitted rays from an object, thus forming a real or virtual image of that object.
sensor
1. A generic term for detector. 2. A complete optical/mechanical/electronic system that contains some form of radiation detector.
zinc sulfide
A polycrystalline material that transmits in the infrared; it is used as a phosphor in x-ray and television screens.
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