Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hsin Chih Tung0
Date of Patent
November 13, 2007
0Patent Application Number
114715260
Date Filed
June 21, 2006
0Patent Primary Examiner
Patent abstract
A laser module used in a circular saw to guide cutting of the saw blade of the circular saw is constructed to have a hollow housing, a focal lens mounted in the housing, a laser diode mounted in the housing behind the focal lens and beyond the focus of the focal lens, a circuit board electrically connected to the laser diode, a focal lens mounted in the housing in front of the laser diode beyond the focus of said focal lens, an annular endpiece threaded into the front side of the housing to hold the focal lens and rotatable relative to the housing to move the focal lens axially relative to the laser diode and to further adjust the pattern the light spot of the laser beam from the laser diode on the workpiece.
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