Title:
LIGHT SOURCE DEVICE AND IMAGE PROJECTION DEVICE
Document Type and Number:
Japanese Patent JP2020034902
Kind Code:
A
Abstract:
To minimize CODs to light sources.SOLUTION: A light source device is provided, comprising a first solid-state light source 5bc, a second solid-state light source 5rd configured to emit light of a wavelength different from that of the first solid-state light source, and control means 1, 3 for controlling turning-on of the first and second solid-state light sources. The control means turns on the first solid-state light source first, and then turns on the second solid-state light source while keeping the first solid-state light source turned on.SELECTED DRAWING: Figure 1
Inventors:
KURATA TAKEYA
YAMAMOTO HIROSHI
YAMAMOTO HIROSHI
Application Number:
JP2019145931A
Publication Date:
March 05, 2020
Filing Date:
August 08, 2019
Export Citation:
Assignee:
CANON KK
International Classes:
G03B21/14; F21S2/00; F21V9/40; F21V23/00; F21V29/503; F21V29/70; F21V29/74; G03B21/00; G09G3/20; G09G3/34; H04N5/74
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Foreign References:
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Attorney, Agent or Firm:
Ryosuke Fujimoto
Atsushi Mizumoto
Hirayama Tomoya
Atsushi Mizumoto
Hirayama Tomoya