Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Atsushi Fukui0
Masaru Fujita0
Date of Patent
January 22, 2019
0Patent Application Number
158749440
Date Filed
January 19, 2018
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A projection light source device according to the present disclosure includes a light source, and a collimating lens that substantially collimates light emitted from the light source, an intermediate diffusion plate that diffuses the emitted light of the collimating lens, and an emission surface diffusion plate that has a weaker diffusibility than the intermediate diffusion plate and diffuses the emitted light of the intermediate diffusion plate.
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