Benq Corporation

Chih-Po Yang

Jih-Yung Lu

Chih-Ching Chen

Sheng-Kao Chen

Jin-Wen Yang

Rex Liao

A method for aligning a lens of a camera with a sensor of the camera. The method includes positioning a test object a predetermined distance away from the lens of the camera, photographing the test object with the camera to produce image data, and outputting the image data from the camera to a calibration device. The method also includes dividing the image data into a plurality of sections, calculating resolution data for at least two sections of the image data, calculating position parameters of the lens according to the resolution data, and correcting alignment of the lens with respect to the sensor according to the position parameters.

Method of aligning lens and sensor of camera

A film scanner includes a cold cathode lamp for producing visible light to scan a film containing a plurality of photographic images, an infrared source for producing infrared light to scan the film, and a detector or light sensor for sensing the visible light. The infrared light transmits the film to produce corresponding image signals. The cold cathode lamp is disposed between the infrared source and the film and the cold cathode lamp is in contact with the infrared source. In this way, before arriving at the film the infrared light is substantially uniformized by passing through the cold cathode lamp.

Film scanner with uniformized infrared light by utilizing a cold cathode fluorescent lamp

A flash tube reflector able to distribute light of the flash tube evenly is disclosed. The reflector is a vertical portion of an elliptic cylinder extending along an Y-axis. A cross section of the reflector along the XY plane is a portion of an ellipse. A zenith E at the reflector intersects the X-axis. The flash tube contacts the reflector at E. A is a center of the flash tube and c is a distance between E and A. F is a first focus of the ellipse of the reflector and f is a distance between E and F . F is a second focus of the ellipse and f is a distance between E and F . The relations of c, f , and f are 0.20 &lE;c/f &lE;0.45 and 0.14&lE;f /f &lE;1.0.

Growing community of inventors

Taipei, Taiwan

Chih-Po Yang