Title:
GUIDE LENS AND LAMP
Document Type and Number:
Japanese Patent JP2022024579
Kind Code:
A
Abstract:
To provide a guide lens capable of improving incident light efficiency into a light guide body (for example, a light guide rod).SOLUTION: A guide lens comprises an annular guide lens part that is arranged between one end face of a light guide body and a light source that emits light in a narrow angle direction that enters a light guide rod from the one end face and light in a wide angle direction that goes outward from the outer peripheral edge of the end face. The annular guide lens part comprises an annular light emission surface facing the outer peripheral part of the one end surface of the light guide body, an annular light incident surface arranged on an optical path of the light in the wide angle direction, and an annular reflection surface that internally reflects the light in the wide angle direction that enters from the annular light incident surface toward the annular light emission surface.SELECTED DRAWING: Figure 2
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Inventors:
SATO KOJI
Application Number:
JP2020127250A
Publication Date:
February 09, 2022
Filing Date:
July 28, 2020
Export Citation:
Assignee:
STANLEY ELECTRIC CO LTD
International Classes:
F21S2/00; F21S43/14; F21S43/19; F21S43/20; F21S43/237; F21S43/27; F21V8/00; F21V17/00; G02B6/00; G02B6/26
Attorney, Agent or Firm:
Ken Ieiri