Filtering device

Application of filtering device

Lighting changes after passing through the filter, then it is cast to the dash cam via the lens. Since all dash cams just record images on the dash cam, changing lighting can change images captured by dash cam. Normal filter made from color glass or plastics can change color of the light.

Application of filtering device
Filtering of infrared
Dash cam can sense infrared, and this make dash cam unable to calculate right color. So filtering device is required to separate the infrared from lighting.
Rectifying in-coming lighting

By making use of the physical property of polarized lens, the direct light are retained while the oblique light is reflected, avoiding impact on the sensitivity points around.



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