Hawk IR manufacture three distinct product lines, two of which provide an uninterrupted barrier between the live components and the thermographer. Each optic has particular properties that affect is end-use application.
Crystal Optics (General)
From an IR transmission perspective, crystal optics offer the most attractive solution however in their standard form many have severe weaknesses, in particular with respect to moisture and dust. Certain fluoride type IR windows have been known to degrade due to moisture and even humidity alone.
Hawk IR CLIRVU™ Crystal Optic.
The CLIRVU™ Crystal used in all Hawk IR Sightglasses is designed to withstand the severe combined overpressure and temperature of an Arc-Fault event and be durable enough to survive the elements.
CLIRVU™ Crystals are totally insoluble and guaranteed never to degrade. Impervious to water, mild acids and alkalis, CLIRVU™ optics overcome all of the drawbacks associated with crystal optics in general.
Thin film polymer optic.
In order to allow infrared radiation to transmit, polymer materials must be made extremely thin. Unfortunately these materials were originally designed for use with home intruder alarm system, passive infrared detectors (PIRs) and have no combined pressure & temperature withstand.
Incorporating a mesh support may increase the pressure withstand but when combined simultaneously with temperature, the optic material will melt and may become a health hazard due to molten projectiles.
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