VEHICLE LIGHT - KOITO MFG CO LTD

Title:

VEHICLE LIGHT

Document Type and Number:

WIPO Patent Application WO/2020/203641

Kind Code:

A1

Abstract:

This vehicle light, which has light units configured to irradiate light emitted from light-emitting elements through translucent members to the front of the light, can form a bright light distribution pattern having horizontal and diagonal cut-off lines on the top edge in order to improve use efficiency of the light source luminous flux. In addition to adopting a configuration of providing first and second light units 20, 40, a configuration is adopted of providing direct light control units 24A, 44A and total reflection control units 24B, 44B as the translucent members 24, 44 thereof. At that time, by dividing a total reflecting surface 24Bb2, 44Bb2 of the total reflection control units 24B, 44B circumferentially into eight reflection regions L1-L4, R1-R4, the upper edge positions of eight light distribution patterns are aligned. In addition, multiple horizontal diffusion lens elements 24sA, 24sB, 24sC are formed on the emission surface 24a of the translucent member 24, and multiple oblique diffusion lens elements 44sA, 44sB, 44sC are formed on the emission surface 44a of the translucent member 44.

Inventors:

MATSUMOTO AKINORI (JP)

Application Number:

PCT/JP2020/013654

Publication Date:

October 08, 2020

Filing Date:

March 26, 2020

Export Citation:

Click for automatic bibliography generation Help

Assignee:

KOITO MFG CO LTD (JP)

International Classes:

F21S41/143; F21S41/265; F21S41/19; F21S41/255; F21S41/275; F21V5/00; F21V5/04; F21W102/155; F21Y115/10

Foreign References:

JP2009146665A	2009-07-02
JP2009283299A	2009-12-03
JP2015049976A	2015-03-16
JP2004327095A	2004-11-18
JP2005108555A	2005-04-21
JP2005203111A	2005-07-28
JP2009146665A	2009-07-02
JP2009283299A	2009-12-03
JP2019069812A	2019-05-09

Other References: