Title:
VEHICLE ILLUMINATION LAMP AND VEHICLE HEADLIGHT
Document Type and Number:
WIPO Patent Application WO/2018/198760
Kind Code:
A1
Abstract:
This vehicle headlight (1), which is an aspect of a vehicle illumination lamp, is provided with: light sources (52R, 52G, 52B); and diffraction gratings (54R, 54G, 54B) that diffract light incident from the light sources (52R, 52G, 52B). The light diffracted by the diffraction gratings (54R, 54G, 54B) is emitted in a predetermined light distribution pattern. A projection area (AR) to which are projected components (LCR, LCG, LCB) that advance and pass through the diffraction gratings (54R, 54G, 54B) among the light incident upon the diffraction gratings (54R, 54G, 54B), is positioned below the light distribution pattern and within a range (RNG) in which the field of view of the driver of the vehicle is obstructed by the vehicle.
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Inventors:
UCHIDA NAOKI (JP)
KITO MASANORI (JP)
KITO MASANORI (JP)
Application Number:
PCT/JP2018/015112
Publication Date:
November 01, 2018
Filing Date:
April 10, 2018
Export Citation:
Assignee:
KOITO MFG CO LTD (JP)
International Classes:
F21S41/25; F21S41/16; F21V5/04; F21V5/08; F21V7/28; G02B5/18; F21W102/135; F21Y113/10; F21Y115/30
Foreign References:
| JP2006147377A | 2006-06-08 | |||
| JP2013196957A | 2013-09-30 | |||
| JP2012146621A | 2012-08-02 | |||
| JP2004252253A | 2004-09-09 | |||
| JP2013171645A | 2013-09-02 | |||
| JP2010135069A | 2010-06-17 | |||
| JP2017068948A | 2017-04-06 | |||
| JP2012146621A | 2012-08-02 |
Other References:
See also references of EP 3617585A4
Attorney, Agent or Firm:
MORIMURA Yasuo (JP)
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