The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 10, 2026

Filed:

Mar. 15, 2024
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventor:

Koichi Akiyama, Azumino, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 9/31 (2006.01);
U.S. Cl.
CPC ...
H04N 9/3164 (2013.01);
Abstract

An illuminator includes a first light source that outputs first light having a first wavelength band, a second light source that outputs second light having a second wavelength band different from the first wavelength band, a light combining member that combines the first light and the second light with each other and outputs combined light, a diffuser that diffuses the combined light incident thereon, a light collector that collects the combined light and directs collected combined light toward the diffuser, a collimator that parallelizes the combined light outputted from the diffuser, a light homogenizer having a first lens array surface on which the combined light outputted from the collimator is incident and a second lens array surface integrated with the first lens array surface, a vibration generator that vibrates the light homogenizer, and a superimposing lens that superimposes light fluxes outputted from the light homogenizer on one another.


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