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:
Nov. 06, 2001
Filed:
May. 24, 1999
Applicant:
Inventors:
Yasuo Ota, Gamagori, JP;
Tokio Ueno, Nagoya, JP;
Assignee:
Nidek Co., Ltd., Aichi, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61F 9/008 ;
U.S. Cl.
CPC ...
A61F 9/008 ;
Abstract
In a laser treatment apparatus, a treatment laser beam emitted from a laser source,is coaxially aligned to an aiming beam emitted from an aiming light source,by a beam splitter,The coaxial beams are delivered to a patient's eye E through a light delivery optical system, when a controller,controls an inclination angle of a filter,to change its spectral characteristics such that the filter cuts off the treatment laser beam during the treatment laser irradiation, while allows to the aiming beam to pass during the observation of the patient's eye.