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:
May. 15, 2007
Filed:
Jul. 23, 2003
Applicant:
Yoshinobu Hosoi, Gamagori, JP;
Inventor:
Yoshinobu Hosoi, Gamagori, JP;
Assignee:
Nidek Co., Ltd., Gamagori-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optometric apparatus for a subjective examination of a visual function of an eye of an examinee includes a pair of right and left lens chamber units, each including, a test window and a rotating disk on which a plurality of optical elements are mounted in a circumferential arrangement to be changeably placed in the test window, the optical elements including a green filter and an aperture.