Search International and National Patent Collections

1. (WO2017056468) LIGHT SOURCE DEVICE AND PROJECTION DEVICE

Pub. No.:    WO/2017/056468    International Application No.:    PCT/JP2016/004331
Publication Date: Fri Apr 07 01:59:59 CEST 2017 International Filing Date: Tue Sep 27 01:59:59 CEST 2016
IPC: F21S 2/00
F21V 5/04
F21V 9/16
G02B 3/08
H01L 33/50
H01L 33/58
H01S 5/022
F21Y 115/30
Applicants: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
パナソニックIPマネジメント株式会社
Inventors: FUKAKUSA, Masaharu
深草 雅春
Title: LIGHT SOURCE DEVICE AND PROJECTION DEVICE
Abstract:
A light source device (1) is provided with: a semiconductor light-emitting element (11) (laser element); an optical element (20) having a plurality of lens regions (21) divided into a plurality of regions, the optical element (20) changing the intensity distribution of the light emitted from the semiconductor light-emitting element (11) by using the plurality of lens regions (21); and a fluorescent element (30) for emitting, as excitation light (54), the light of which the intensity distribution was changed by the optical element (20). The fluorescent element (30) is disposed such that the light-emitting surface of the fluorescent element (30) is set at an incline from the surface at which the optical axis of the excitation light (54) is the normal line. The plurality of lens regions (21) have mutually different first focal points. The light beams that are incident on the plurality of lens regions (21) and are collected at the first focal points overlap at the light-emitting surface of the fluorescent element (30).