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. 05, 2015
Filed:
Mar. 19, 2008
Naho Murakami, Toyokawa, JP;
Koichi Ito, Toyohashi, JP;
Naho Murakami, Toyokawa, JP;
Koichi Ito, Toyohashi, JP;
Nidek Co., Ltd., Gamagori-shi, JP;
Abstract
An ophthalmic laser treatment apparatus comprises: a laser source that emits a laser beam for treatment of an affected part of a patient's eye; an optical fiber that transmits the laser beam emitted from the laser source; and a delivery optical system that irradiates the laser beam emitted from the optical fiber to the affected part of the patient's eye, the delivery optical system including: a plurality of diffraction optical elements each being configured to shape a beam profile of the laser beam at an emission end face of the optical fiber into a beam profile having one of a uniform intensity and a lower intensity in the center than on the periphery on the affected part and also to shape the laser beam to have a different spot size on the affected part of the patient's eye; and a changing unit which selectively disposing one of the diffraction optical elements on an optical path.