Patent ID: 7113269
Filing Date: 2006-09-26
Classification: G01B,G11B

Abstract:
1. An angle measuring device which measures an inclination angle of a test sample comprising: a light source for emitting a light; a light separating/deviating section which is disposed so as to be tilted in coordination with an inclination angle of the test sample and provided with a plurality of optical planes including an optical path separating plane for separating a light into a reflected light flux and a transmitted light flux and a reflecting plane for reflecting any one of the separated light which is separated on the optical path separating plane so as to emit a plurality of light flux formed by a light which is incident from the light source; and a plurality of light measuring device which receive a plurality of the light flux which are emitted from the optical path separating/deviating section so as to measure the inclination angles of the test samples independently.