Patent ID: 6124952
Filing Date: 2000-09-26
Classification: G02B,H04N

Abstract:
A magnification-variation scanner, comprisinga light source, providing light for scanning an object surface;an object lens for forming an image with rays reflected from the object surface;an image detector, for receiving the image projected thereon from the object lens;a holder for carrying the object lens between a third position and forth position; andan optical path delay, which can be moved between a first position and a second position, wherein when the optical path delay is located at the first position, the optical path delay is located at the light path from the light source to the object lens, to modify the optical path between the object surface and the object lens, and the object lens is located at the third position to make the image focused on the image detector;wherein when the optical path delay is located at the second position, the optical path delay is away from the light path from the light source to the object lens, with no effect to modify the optical path between the object surface and the object lens, and the object lens is located at the fourth position to make the image focused on the image detector, thereby changing the dimensions of the image projected over the image detector.