Laser beam scanning type ophthalmological instrument
Patent 4968130 Issued on November 6, 1990. Estimated Expiration Date: 
October 26, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 26, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod and apparatus for forming an image of the ocular fundus Patent #: 4579430 InventorsAssigneeApplicationNo. 262640 filed on 10/26/1988US Classes:351/221, Including illuminator351/206Including eye photographyExaminersPrimary: Bovernick, Rodney B.Attorney, Agent or FirmInternational ClassesA61B 003/10A61B 003/14 Foreign Application Priority Data1987-10-28 JPAbstractA laser beam scanning type ophthalmological instrument has a first laser beam light source for emitting a first laser beam; a second laser beam light source for emitting a second laser beam of a different wavelength from that of the first laser beam; and a light receiving element for receiving a laser beam reflected by an eye fundus, and in which the eye fundus is scanned by the first and second laser beams in order to observe the eye fundus or in order that a view field, etc. can be inspected. The laser beam scanning type ophthalmological instrument is characterized in that the first and second laser beams emitted by the first and second laser beam light sources can independently be adjusted in light quantity. | |
