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A thin profile laser pointer assembly includes a thin profile laser head, a constant voltage laser diode driver circuit, and a coin cell power source all packaged within a thin-profile rectangular housing having a thickness between about 2.0 mm and about 6.0 mm. The laser head includes a thin, recta

A thin profile laser pointer assembly includes a thin profile laser head, a constant voltage laser diode driver circuit, and a coin cell power source all packaged within a thin-profile rectangular housing having a thickness between about 2.0 mm and about 6.0 mm. The laser head includes a thin, rectangular heat sink and a laser diode mounted on a recessed shelf on a front edge of the heat sink. The laser head is slidably received in a mounting channel in a front portion of the housing. The arrangement of the laser head and mounting channel rigidly fixes the laser diode in the X and Z axes while permitting sliding linear movement of the laser diode along a "Y" axis, which defines the optical axis of the laser diode. A lens is mounted in the mounting channel along the optical axis, and a projecting aperture is formed in the front edge of the housing in front of the lens for allowing the laser beam to exit through the front of the housing. The laser beam is focused by sliding the laser head within the channel. The laser diode driver circuit and a contact switch are mounted on a circuit board received and secured over the housing. Contact pads on the circuit board engage corresponding contacts on the battery and laser head assembly to complete the circuit. The constant voltage power regulating circuit utilizes a simple shunt regulator circuit which monitors voltage drain as the battery decays and draws appropriate current levels to provide constant power to the laser diode.

대표청구항 ▼

[ What is claimed is:] [1.] A laser pointer assembly comprising:a laser head including a heat sink and a laser diode mounted on said heat sink, said laser head having opposing top and bottom walls, said laser head including a recessed shelf on one of said top and bottom walls, said recessed shelf be

[ What is claimed is:] [1.] A laser pointer assembly comprising:a laser head including a heat sink and a laser diode mounted on said heat sink, said laser head having opposing top and bottom walls, said laser head including a recessed shelf on one of said top and bottom walls, said recessed shelf being located adjacent to a front edge of said laser head, said laser diode being mounted on said recessed shelf, said laser diode emitting a laser beam;a laser diode driver circuit electrically connected to said laser diode;a power source electrically connected to said laser diode driver circuit;a housing containing said laser head and said laser diode driver circuit, said housing including a mounting channel receiving said laser head, said mounting channel and said laser head cooperating to position said laser diode along an optical axis, said mounting channel further cooperating with said laser head to rigidly fix said laser diode in X and Z axes of a 90.degree. reference angle reference system, said reference system also including a Y axis defining the optical axis extending longitudinally along said housing, said mounting channel cooperating further with said laser head to rigidly fix rotation .theta..sub.x, .theta..sub.y, and .theta..sub.z of said laser diode around the X, Y and Z axes of said reference system, said housing further including a projecting aperture aligned along the optical axis; anda lens aligned on said optical axis between the laser diode and the projecting aperture.