DEAD-FRONT LENS FOR INTERIOR VEHICLE DISPLAY
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United States of America Patent
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Issued Date -
Mar 31, 2016
app pub date -
Sep 30, 2014
filing date -
Sep 30, 2014
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A vehicle instrument cluster lens assembly for a vehicle instruments panel includes a first layer comprised of a quarter-wave plate (λ/4). A second layer which is a polarizer, a third layer of another quarter-wave plate (λ/4); the first and a fourth layer being a polarizer light to a new orientation. The quarter-wave plates change the orientation of the light angle that it can be seen with a polarized eye glass lens. The vehicle lens assembly functions in a dual manner depending on the light source direction and orientation of the light to prevent light emitted from the instrument as well as making the display light visible to viewers wearing polarized sunglasses.
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