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:
Apr. 11, 2000
Filed:
Jun. 30, 1998
Applicant:
Inventors:
Yoshinobu Hosoi, Aichi, JP;
Taeko Horino, Aichi, JP;
Assignee:
Nidek Co., Ltd., Aichi, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
351212 ;
Abstract
An optometric apparatus for correcting the refraction of an eye to be examined, which allows even a person who is inexperienced and unfamiliar with optometry to easily obtain appropriate prescription values, and conduct analysis of the visual function. The optometric apparatus has a rotary prism for imparting a prism power to the eye to be examined. An appropriate examination is conducted by using the rotary prism in accordance with a program stored in a memory to obtain the prism power of an expected state, and a result of examination is displayed.