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Patent Searching and Data


Title:
LIGHT SOURCE DEVICE, PROJECTOR, AND LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/039783
Kind Code:
A1
Abstract:
The purpose of this invention is to provide a light source device having a simple structure and provided with a mechanism capable of adjusting an optical path length between a reflection member and a lens. In order to achieve the foregoing, this light source device comprises: an excitation light source that generates excitation light; a reflection member that reflects the excitation light; a lens that is disposed in an optical path of the excitation light spanning from the excitation light source to the reflection member and that refracts the excitation light; a housing that encloses the reflection member in a sealed internal space; an operating member that is exposed from the housing in a direction intersecting the optical path and that extends and retracts with respect to the housing by means of a manual operation by an operator; and an adjusting mechanism that adjusts the optical path length between the reflection member and the lens in coordination with the operating member extending and retracting with respect to the housing.

Inventors:
ARAI MASATOSHI (JP)
SHIKITA KAZUO (JP)
Application Number:
PCT/JP2019/027398
Publication Date:
February 27, 2020
Filing Date:
July 10, 2019
Export Citation:
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Assignee:
MAXELL LTD (JP)
International Classes:
G03B21/14; F21S2/00; F21V7/00; F21V7/30; F21V9/08; F21V9/40; F21V9/45; F21V14/06; F21Y115/30
Domestic Patent References:
WO2019069563A12019-04-11
Foreign References:
JP2017009684A2017-01-12
JP2018120174A2018-08-02
JP2016024975A2016-02-08
Attorney, Agent or Firm:
THE PATENT BODY CORPORATE TAKEWA INTERNATIONAL PATENT OFFICE (JP)
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