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:
Dec. 27, 1988
Filed:
Mar. 23, 1987
Applicant:
Inventors:
Kazutoshi Takagi, Tokyo, JP;
Nobuaki Kitajima, Tokyo, JP;
Assignee:
Tokyo Kogaku Kikai Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ; G02B / ;
U.S. Cl.
CPC ...
350507 ; 350520 ; 351211 ;
Abstract
A gaze-fixing device for a surgical microscope which is capable of providing a marking without an error at the time of a radial keratotomy operation. The device comprises a gaze-fixing target which can be disposed on the observation optical axis of a microscope, and light quantity-reducing means for reducing the quantity of illumination light applied from an illumination light source for illuminating an eye to be operated on.