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:
Feb. 28, 2023
Filed:
Aug. 13, 2021
Applicant:
Fujifilm Corporation, Tokyo, JP;
Inventor:
Chikara Yamamoto, Saitama, JP;
Assignee:
FUJIFILM Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/14 (2006.01); G02B 5/00 (2006.01); G03B 37/04 (2021.01);
U.S. Cl.
CPC ...
G03B 21/14 (2013.01); G02B 5/005 (2013.01); G03B 37/04 (2013.01);
Abstract
The projection device includes a display element that displays an image, a projection optical system that forms an intermediate image of the image within an air space and projects the intermediate image to form a projected image, and a light shielding member that is disposed within the air space. The light shielding member includes a light shielding region which is positioned outside optical paths of all effective luminous fluxes emitted from the display element and used to form the projected image. The projection device satisfies a predetermined conditional expression.