Title:
LUMINAIRE, VEHICULAR LIGHTING FIXTURE SYSTEM
Document Type and Number:
Japanese Patent JP2023085728
Kind Code:
A
Abstract:
To suppress generation of a dark region in a light distribution pattern in a luminaire.SOLUTION: A luminaire includes: a light source 10; a light condensing part for condensing light so that light emitting from the light source focuses on a predetermined position; a liquid crystal element 15 arranged at a position including a focal point; a first polarizing element 12 arranged on a light incident surface side of the liquid crystal element; a second polarizing element 17 arranged on a light emission surface side of the liquid crystal element; a projection lens 18 for enlarging and projecting an image generated by the liquid crystal element, the first polarizing element and the second polarizing element; and an optical filter 19 arranged on a light path leading to the liquid crystal element from the light source. The light source has a light emission peak at equal to or less than 450nm, and the optical filter is a low pass filter in which the relative transmission factor at equal to or less than 435nm is equal to or less than 0.1%, and the relative transmission factor at equal to or less than 450nm is equal to or less than 17%.SELECTED DRAWING: Figure 1
Inventors:
KAMEI MATSUO
IDO HIROAKI
IWAMOTO NOBUHISA
IDO HIROAKI
IWAMOTO NOBUHISA
Application Number:
JP2021199921A
Publication Date:
June 21, 2023
Filing Date:
December 09, 2021
Export Citation:
Assignee:
STANLEY ELECTRIC CO LTD
International Classes:
F21S41/20; F21S41/125; F21S41/147; F21S41/64; F21V9/14
Attorney, Agent or Firm:
Patent Attorney Corporation Mutsuki Partners