Patent ID: 7342647
Filing Date: 2008-03-11
Classification: G01C

Abstract:
1. Mirror apparatus for use in a laser altimeter contained in a walled housing, said mirror apparatus fixedly adjustable for directing laser beams from said laser altimeter along a desired optical path, said mirror apparatus comprising: an outer cylindrical section rotatably disposed within a wall of said housing; an inner cylindrical section rotatably disposed within said outer section; a mirror element disposed on a surface of said inner section which extends from the outer section and housing wall, said mirror element for reflecting the laser beams at an adjustable angle of reflection; said inner and outer sections being configured with different rotation axes with respect to each other; said angle of reflection of said mirror element being adjustable to a desired angle of reflection by the rotation of at least one of said inner and outer sections about the respective rotation axis thereof, said desired angle of reflection being that which directs laser beams from said laser altimeter along the desired optical path; and said inner and outer sections being lockable in place at the desired angle of reflection.