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Patent Searching and Data


Title:
OPTICAL ELEMENT, VEHICLE HEADLIGHT UNIT IN WHICH SAID OPTICAL ELEMENT IS USED, AND VEHICLE HEADLIGHT DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/115887
Kind Code:
A1
Abstract:
Provided are an optical element, a vehicle headlight unit in which said optical element is used, and a vehicle headlight device, said optical element being capable of increasing energy efficiency and forming a luminosity peak of distributed light in a headlight unit in which a plurality of light emitting elements, optical elements, and projection lenses are used. Therefore, in the optical element used for the vehicle headlight device, the optical element comprises a plurality of rods that individually propagate light emitted from the plurality of light emitting elements, and an integration unit that connects and links the plurality of rods. The rod among the plurality of rods for which the irradiation light maximally contributes to forming the luminosity peak of distributed light has lower directivity than the other rods, and the thickness of the integration unit in the emitted light direction from the connection site of the integration unit is less than that of the other rods.

Inventors:
OOTA MITSUHIKO (JP)
Application Number:
PCT/JP2018/045040
Publication Date:
June 11, 2020
Filing Date:
December 07, 2018
Export Citation:
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Assignee:
MAXELL JOEI TECH CO LTD (JP)
International Classes:
F21S41/24; F21S41/143
Domestic Patent References:
WO2017122629A12017-07-20
Foreign References:
JP2018055907A2018-04-05
CN105423209A2016-03-23
JP2016184578A2016-10-20
Attorney, Agent or Firm:
SEIRYO I.P.C. (JP)
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