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:
Jan. 07, 2025

Filed:

Sep. 22, 2021
Applicant:

Hoya Corporation, Tokyo, JP;

Inventors:

Yoshihiro Hayashi, Tokyo, JP;

Yoshiyuki Niijima, Tokyo, JP;

Yukari Akino, Tokyo, JP;

Shinya Shimotashiro, Tokyo, JP;

Assignee:

HOYA CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 1/06 (2006.01); A61B 1/045 (2006.01); H04N 23/50 (2023.01); H04N 23/56 (2023.01); H04N 23/73 (2023.01);
U.S. Cl.
CPC ...
H04N 23/555 (2023.01); H04N 23/56 (2023.01); H04N 23/73 (2023.01);
Abstract

A light source device that generates illumination light, the light source device including: a plurality of semiconductor light emitting elements that emit light beams having different wavelength bands; and a control unit that controls a light emission profile of the plurality of semiconductor light emitting elements and drives the plurality of semiconductor light emitting elements, in which the light emission profile includes a strong light emission period in which light emission is performed with a predetermined light intensity and a weak light emission period in which light emission is performed with a light intensity weaker than the predetermined light intensity, and the control unit executes a restoration control process of converting into a light emission amount in the strong light emission period while maintaining a total amount of the light emission amount in the strong light emission period and the light emission amount in the weak light emission period constant.


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