Vehicle lighting unit
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United States of America Patent
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May 22, 2018
Issued Date -
N/A
app pub date -
Dec 18, 2015
filing date -
Dec 22, 2014
priority date (Note) -
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Abstract
A vehicle lighting unit can prevent the erroneous emission of laser light from a lens member through its light emission surface to the outside even when a wavelength converting member is dislocated. The vehicle lighting unit can include a laser light source, the wavelength converting member configured to receive the laser light and wavelength-convert at least part of the laser light, and the lens member including a light incident surface on which light from the wavelength converting member or the laser light is incident, a first reflecting surface configured to totally reflect the light from the light incident surface, and a light exiting surface through which the light from the first reflecting surface can exit. The lens member can further include a total-reflection prevention structure at the first reflecting surface, configured to prevent the laser light entering the lens member from being totally reflected by the first reflecting surface.
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