Air-cooling
The high-temperature endoscope contains one essential component that remains in direct contact with furnace heat: the front lens.
This front lens is protected by an air circuit that permanently ventilates the objective lens via the Venturi effect.
An air flux is injected into the tube and then exits in a ring-like pattern around the small-diameter front aperture (i.e. the Venturi effect).
Objective and frontal lens ventilated continuously by an air circuit. |
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Benefits
- Continuous cooling of the objective lens.
- No lens deterioration due to heat exposure.
- Lens cleansing.