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Transparent Heaters

Military Grade Xtreme Series LCDs - 19979 Transparent Heaters

Specification:

The VarTech Transparent Heat-ers are either un-laminated or fully laminated glass filters with an Indium Tin Oxide (ITO) coat- ing of 12 ohms/sq. This is an optimum coating density to provide excellent heating performance with good optical clarity compared to the highly reflective thin resistive wires typically used to provide heat. Extensive testing and military qualification has proved the VarTech transparent heater to maintain a LCD at 20'C with an outside temperature of -50'C and 3’C/minute temperature gradient.

Applications:

Heated Window Performance

Product Range:

Un-laminated glass transparent heater: • Transmittance @ 550nm 89% • Thickness 1.1mm only • Plain float finish only • Max size 400 x 500mm

Termination Method:

Highly rugged proprietary insulated busbar and wire termination along two op-posing edges. Transparent heaters are used in a board range of applications including: public information dis-plays, material handling equipment, military ground based vehicles, naval flight deck equip-ment, control panels on heavy agricultural and earth moving equipment, periscopes and off- shore oil platforms. • The ITO surface is located within the lamination for ruggedization and additional layers incorporated for mechanical & impact resistance • Thickness 2.5mm upwards • Finish plain, etch non-glare and anti-reflective coating Laminated glass transparent heater: Additional elements for Multi-function windows with transparent heater: • EmiClare EMI shielding • Contrast enhancement • Etch non-glare and anti-reflective coated front surface finish • Silk screen printing VarTech’s Transparent Heaters for the defrosting and maintaining LCD displays at optimum operating temperatures for screen response or the defrosting and maintaining windows from moisture. VarTech has developed a clear transparent heater circuit with a rugged busbar termination that can incorporated with our range of contrast enhancement and EMI shielded filters.