Method for planar beam path alignment of a square ring laser gyroscope
Patent 4861160 Issued on August 29, 1989. Estimated Expiration Date: 
August 28, 2007. 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.
August 28, 2007. 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 3581227 Dual mode laser optics control for ring laser gyro Ring laser, especially for a ring laser type of gyro Method and apparatus for mechanical dither stabilization of a laser angular sensor Patent #: 4710027 InventorsAssigneeApplicationNo. 07/090559 filed on 08/28/1987US Classes:356/138, ANGLE MEASURING OR ANGULAR AXIAL ALIGNMENT356/459Rotation rate (e.g., ring laser gyros)ExaminersPrimary: Rosenberger, Richard A.Attorney, Agent or FirmInternational ClassesG01C 19/66 (20060101)G01C 19/64 (20060101) H01S 3/083 (20060101) H01S 3/081 (20060101) AbstractA method for aligning the light path of a square ring laser gyroscope. First, the path is aligned by translation of adjacent curved mirrors which direct a light beam through a filter-like aperture. Next, the curved mirrors are translated by equal amounts in opposite directions as determined from a measurement of the non-planar condition of opposed mirror mounting surfaces. | |
