Title:
LIGHT SOURCE DISTRIBUTION ELEMENT FOR HEADLIGHT DEVICE, AND HEADLIGHT MODULE
Document Type and Number:
WIPO Patent Application WO/2024/047719
Kind Code:
A1
Abstract:
A light source distribution element (100) for a headlight device comprises: an incident unit (110) to which light from a light source (1) is inputted and which has three or more joining surfaces (111) to (115) located along one direction on a plane orthogonal to the optical axis of the light source (1); and three or more light-guiding units (121) to (125) that each have a rectangular cross section and each have a pair of opposed surfaces facing each other in another direction orthogonal to the one direction on the plane orthogonal to the optical axis of the light source (1), that have emission surfaces (121a) to (125a) corresponding to the plurality of joining surfaces (111) to (115) of the incident unit (110), respectively, and that guide light from the corresponding joining surfaces (111) to (115) to the corresponding emission surfaces (121a) to (125a). Among the plurality of light-guiding units (121) to (125), the pairs of opposed surfaces, at which the emission surfaces (122a), (123a) are located, of the light-guiding units (122), (123) on one end side in another direction with respect to the light source (1) have pairs of reflection surfaces (122b), (122c), (123b), (123c) inclined with respect to the optical axis of the light source (1), on the one end side. Among the plurality of light-guiding units (121) to (125), the pairs of opposed surfaces, at which the emission surfaces (124a), (125a) are located, of the light-guiding units (124), (125) on the other end side in the other direction with respect to the light source (1) have pairs of reflection surfaces (124b), (124c), (125b), (125c) inclined with respect to the optical axis of the light source (1), on the other end side.
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Inventors:
MORIMOTO TOMOHIDE (JP)
Application Number:
PCT/JP2022/032476
Publication Date:
March 07, 2024
Filing Date:
August 30, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F21S41/265
Foreign References:
| JP7031087B1 | 2022-03-07 | |||
| JP2016181364A | 2016-10-13 |
Attorney, Agent or Firm:
SANNO PATENT ATTORNEYS OFFICE (JP)
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