Vehicle lamp
The vehicle lighting device addresses the issue of unnecessary light irradiation by using a reflector, inner lens, and projection lens configuration with control protrusions to enhance visibility and clarity of the drawing pattern through controlled light direction and internal reflections.
WO2026141364A1PCT designated stage Publication Date: 2026-07-02KOITO MFG CO LTD
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- KOITO MFG CO LTD
- Filing Date
- 2025-12-23
- Publication Date
- 2026-07-02
AI Technical Summary
Technical Problem
Existing vehicle lighting devices irradiate unnecessary light (glare) onto the road surface, which reduces visibility and risks misrecognition of the drawing pattern.
Method used
A vehicle lighting device with a reflector, inner lens, and projection lens configuration that includes control protrusions to direct unnecessary light away from the projection area, using internal reflections and extensions to shield unwanted light, ensuring only the desired light forms the drawing pattern.
Benefits of technology
Suppresses unnecessary light irradiation, enhancing the visibility and clarity of the drawing pattern by controlling light direction and ensuring high luminance and uniform brightness.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure JP2025044987_02072026_PF_FP_ABST
Abstract
This vehicle lamp comprises: a light source for emitting light; a reflector for reflecting, in a light-converging direction, light emitted from the light source; a projection lens having a projecting part that projects, as a rendering pattern, light emitted from the light source; and an inner lens having a pattern formation incident surface on which a portion of the light reflected by the reflector is incident, a pattern formation emission surface from which the light incident on the pattern formation incident surface is emitted toward the projecting part, and an inclined surface that is capable of internally reflecting light reflected by the reflector and that is inclined with respect to the pattern formation emission surface. The inner lens is provided with a pair of control protrusions that are positioned so as to be continuous across both sides of the pattern formation incident surface and that control the incident light so to be directed further outward than the outer periphery of the projecting part.
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