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:
Mar. 04, 2025
Filed:
Jun. 04, 2021
Applicant:
Nikon Corporation, Tokyo, JP;
Inventors:
Assignee:
NIKON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 30/36 (2020.01); A61B 3/13 (2006.01);
U.S. Cl.
CPC ...
G02B 30/36 (2020.01); A61B 3/13 (2013.01);
Abstract
An optical unit includes an optical system that includes a focal point on an incident side of light at a position for setting a display image of an object and that is configured to emit light from a focal plane as parallel light. The optical unit also includes a housing section housing the optical system and is configured so as to satisfy a condition equation expressed by≥7570 mmwherein IB is a viewable area where the display image is viewable.