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:
Jun. 15, 2004
Filed:
Apr. 19, 2002
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha TOPCON, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 3/02 ;
U.S. Cl.
CPC ...
A61B 3/02 ;
Abstract
An optometry apparatus of the present invention comprises an optical element provided in a correction optical system , which has a spherical lens and a cylindrical lens and which corrects examined eyes E to be subjected to optometry, wherein the optical element is used so that targets are seen as if they were dispersed in a plane orthogonal to an optical axis O and shown simultaneously at a different distance or position in a direction of an optical axis through the eyes E to be subjected to optometry.
Quick Actions:
Fukuma, Yasufumi. (2004). Optometry apparatus and diffraction grating plate used in the same (U.S. Patent No. 6749303). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6749303
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