Patent ID: 7796489
Filing Date: 2010-09-14
Classification: G06K

Abstract:
1. An optical head for reading an object, the optical head comprising: a hollow housing; a light source module, which is fixed in the hollow housing and provides an initial light ray; a diffuser structure, which is connected to the hollow housing, receives the initial light ray and processes the initial light ray into a uniform light ray for output, wherein the initial light ray is reflected by the diffuser structure many times to form the uniform light ray; and a light sensing module, fixed in the hollow housing, for sensing the uniform light ray, wherein an optical axis of the light sensing module is substantially parallel to an axial direction of the diffuser structure, and the light sensing module comprises: a lens fixing structure; a lens, fixed in the lens fixing structure; and an image sensor, which is fixed in the lens fixing structure and receives the uniform light ray through the lens.