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.
Patent No.:
Date of Patent:
Aug. 27, 2024
Filed:
Dec. 28, 2021
Projection optical apparatus that is removable installed in a light emitting apparatus and projector
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/14 (2006.01); G03B 21/28 (2006.01); G02B 7/02 (2021.01); G02B 17/08 (2006.01);
U.S. Cl.
CPC ...
G03B 21/145 (2013.01); G03B 21/28 (2013.01); G02B 7/021 (2013.01); G02B 17/08 (2013.01);
Abstract
A projection optical apparatus is removably installed in a light emitting apparatus and projects light emitted from the light emitting apparatus. The projection optical apparatus includes a plurality of lenses, a lens barrel holding the plurality of lenses, and a first grip extending outward from the exterior of the lens barrel.