Ophthalmic beam director
Patent 4686992 Issued on August 18, 1987. Estimated Expiration Date: 
May 3, 2005. 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.
May 3, 2005. 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 References 2220382 2441719 2928318 3096767 3315680 3403579 3487835 3703176 3796220 Laser endoscope InventorsAssigneeApplicationNo. 06/729985 filed on 05/03/1985US Classes:606/4, Ophthalmic219/121.74, With mirror359/223, By moving a reflective element359/876, With rotation of mirror about perpendicular axes607/89Laser applicationExaminersPrimary: Cohen, Lee S.Attorney, Agent or FirmInternational ClassesA61B 3/135 (20060101)A61B 3/13 (20060101) A61B 19/00 (20060101) B25J 7/00 (20060101) G02B 7/00 (20060101) A61F 9/007 (20060101) A61F 9/008 (20060101) G02B 21/32 (20060101) AbstractA micromanipulator for an instrument for focusing a beam of light on a target, such as a laser in an ophthalmic instrument, includes a control member coupled through a spherical bearing located at a pivot location to a coiled spring connected to a control rod for manipulating the focus of a gimballed beamsplitter in the x and y directions. The components are structured and arranged to lie on an axis in the neutral position so that the movement of the light beam, during focusing, corresponds directly to the direction of movement of the control member by an operator. The coiled spring acts as an automatic centering device to return the focused light beam to a predetermined position in the absence of manipulation. | |
