Abstract: Disclosed is an optical mouse which can move a cursor on a display screen of a computer system by totally reflecting light, which is emitted from a light source and is reflected upon a surface after transmitting a glass, using a prism and varying a light path to condense the light on a light-receiving lens so as to allow an optical sensor to sense an image.

Abstract: Disclosed is an optical mouse based on two light-receiving lenses which include an optical sensor array for sensing light, an optical device for condensing light on the optical sensor array, and a mechanical structure.

Abstract: Disclosed is an optical mouse which can move a cursor on a display screen of a computer system by totally reflecting light, which is emitted from a light source and is reflected upon a surface after transmitting a glass, using a prism and varying a light path to condense the light on a light-receiving lens so as to allow an optical sensor to sense an image.

Abstract: Disclosed is an optical mouse which can move a cursor on a display screen of a computer system by varying arrangement of optical parts and structures using regularly reflected light in light emitted from a light source so as to allow the regularly reflected light to enter into a sensor. The optical mouse includes a light source for emitting light, an irradiating lens for condensing the light emitted from the light source and downwardly irradiating the light at a predetermined angle, a light-receiving lens for condensing light regularly reflected upon a reflecting surface on a path where light emitted from the light source and irradiated through the irradiating lens is reflected, and an optical sensor for sensing the light condensed through the light-receiving lens.

Abstract: A laser diode module of an optical scanner includes a circuit board; a case fastened to the circuit board after its position is adjusted, the case having a laser diode embedded therein; and a slider guide fastened to the case. The slider guide has a barrel shaped; upwardly directed guide surface and a pair of further guide surfaces which are formed at either side of the barrels shaped surface. The three guide surfaces extend generally parallel to a laser beam produced by the diode. A lens holder having a body and a pair of guide pieces is seated on the barrel shaped guide surface of the slider guide such that it can slide thereon is formed with an inserting hole. The pair of guide pieces are on either side of the body and are seated on the pair of further guide surfaces of the slider guide, respectively.