Patent ID: 9188532
Filing Date: 2015-11-17
Classification: G01N

Abstract:
1. An inspection apparatus that inspects an inspection object, the apparatus comprising: a light emitting device that emits a light beam; a first lens disposed such that an optical axis of the first lens extends in one direction, the first lens changing divergence of the light beam that has been emitted from the light emitting device and passes through the first lens; a second lens disposed such that an optical axis of the second lens extends in the one direction, the light beam that has exited the first lens and passes through the second lens being condensed on the inspection object by the second lens; a light receiving device disposed between the first lens and the second lens, the light receiving device receiving at least part of the light beam that has exited the second lens, been reflected by the inspection object, and passed through the second lens; and an inspection device that detects a reflection characteristic of at least part of the inspection object in accordance with a result of light reception performed by the light receiving device.