Patent ID: 8049152

Claim:
An inspection device comprising: a light irradiation device which comprises: a light permeable plate which has a predetermined thickness with one surface arranged as an object facing surface to face an object on which light is to be irradiated such as a product, multiple reflecting sections that are laid out on another surface of the light permeable plate and forming a microscopic space therebetween with the multiple reflecting sections providing light reflecting surfaces facing in a direction of the object, a light source section arranged at a position where at least a part of the emitted light is transmitted into the light permeable plate, reaches the light reflecting surfaces and is reflected on the light reflecting surfaces to be emitted from the object facing surface, an antireflection film that covers the object facing surface, and an image-taking device which takes an image of the object by acquiring the light that is reflected on the object and that passes the on the light permeable plate the spaces between the multiple reflecting sections, wherein the light irradiation device is arranged between the object and the image-taking device, and the antireflection film reduces the light that is reflected on the multiple reflecting sections and travels toward the object, and then is reflected again on the object facing surface to restrain any moiré interference.