Title:
LIGHTING FIXTURE UNIT
Document Type and Number:
Japanese Patent JP2020107495
Kind Code:
A
Abstract:
To effectively suppress generation of unexpected shadow and glare on a light distribution pattern, in a lighting fixture unit including a reflection type spatial light modulator.SOLUTION: A translucent cover 36 covering an opening portion 40Aa from a unit front side is supported by a vertical face portion 40A in a constitution that the opening 40Aa surrounding the translucent plate 30C of a spatial light modulator 30 is formed on a vertical face portion 40A of a bracket 40 supporting the spatial light modulator at a unit front side with respect to the spatial light modulator 30. Thus attachment of foreign matters to the translucent plate 30C of the spatial light modulator 30 is prevented. On the other hand, as the translucent cover 36 is disposed on a position separating from a reflection control portion 30A to the unit front side with respect to the translucent plate 30C, an image of a foreign matter projected by the projection lens 72 is significantly blurred, even when the foreign matter is attached to the translucent cover 36, and generation of unexpected shadow and glare on a light distribution pattern can be effectively suppressed.SELECTED DRAWING: Figure 11
Inventors:
SATO TAKAYOSHI
HONDA TAKAHIKO
HONDA TAKAHIKO
Application Number:
JP2018245152A
Publication Date:
July 09, 2020
Filing Date:
December 27, 2018
Export Citation:
Assignee:
KOITO MFG CO LTD
International Classes:
F21S45/50; F21S41/147; F21S41/20; F21S41/26; F21S41/29; F21S41/365; F21S41/675; F21V31/00
Domestic Patent References:
| JP2017191745A | 2017-10-19 | |||
| JP2017054608A | 2017-03-16 | |||
| JP2016091976A | 2016-05-23 |
Attorney, Agent or Firm:
Takashi Moriyama