Patent ID: 6795612
Filing Date: 2004-09-21
Classification: G01B,G02B

Abstract:
A method for measuring angle of slant surface of an optical component, comprising the steps of:(a) Providing a standard GRIN Lens having a slant surface and a vertical surface, the standard GRIN Lens having a known specification; (b) Positioning the slant surface of the optical component a fixed distance from the standard GRIN Lens and facing exactly toward the slant surface of the standard GRIN Lens; (c) Irradiating laser beams into the vertical surface of the standard GRIN Lens to generate a first oval projection by reflection off the slant surface of the standard GRIN Lens and a second oval projection by reflection off the slant surface of the optical component; (d) Determining the angle of the slant surface of the optical component on the basis of the specification of the standard GRIN Lens and the dimensions of the first and second oval projections.