Patent ID: 6177954
Filing Date: 2001-01-23
Classification: G01N,H04N

Abstract:
A miniature inspection system for observing an object, the inspection system comprising:a camera for inspecting an object when located at an inspection location, the camera having an entrance aperture lense and an optical axis being defined between the entrance aperture lense of the camera and the inspection location;a ring light, for providing light to the object to be inspected, being located concentrically with respect to and along the optical axis, at a location between the entrance aperture lense of the camera and the inspection location;a field lens being located along the optical axis at a location between the entrance aperture lense of the camera and the inspection location;at least one reflective surface being located along the optical axis, between the entrance aperture lense of the camera and the field lens; anda diffuser being located between the ring light and the inspection location to diffuse the light supplied by the ring light to the object when located at an inspection location.