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:
Sep. 20, 2022
Filed:
Aug. 23, 2018
Applicant:
Qd Laser, Inc., Kawasaki, JP;
Inventors:
Seiji Morino, Kawasaki, JP;
Makoto Suzuki, Kawasaki, JP;
Mitsuru Sugawara, Kawasaki, JP;
Kinya Hasegawa, Kawasaki, JP;
Assignee:
QD LASER, INC., Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 3/032 (2006.01); A61B 3/00 (2006.01); A61B 3/024 (2006.01); A61B 3/028 (2006.01); A61B 3/036 (2006.01);
U.S. Cl.
CPC ...
A61B 3/032 (2013.01); A61B 3/0075 (2013.01); A61B 3/0091 (2013.01); A61B 3/024 (2013.01); A61B 3/028 (2013.01); A61B 3/036 (2013.01);
Abstract
Provided is a vision test device including: a projection unitthat projects an image on a retina of a subject with use of a laser beamby two-dimensionally scanning the laser beam; a beam diameter setting unit that sets a beam diameter of the laser beam; and a numerical aperture setting unit that sets a numerical aperture of the laser beam, wherein the projection unit projects, on the retina, a test image for measuring visual information of the subject with use of a laser beam having the set beam diameter and the set numerical aperture.