Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Patent
1996-05-31
1999-02-16
Epps, Georgia Y.
Optical: systems and elements
Single channel simultaneously to or from plural channels
By partial reflection at beam splitting or combining surface
33286, 33290, 33291, G02B 2714, G01C 300, G01C 500
Patent
active
058726578
ABSTRACT:
Accessories are disclosed for use with a laser tool which may or may not be self-leveling. The accessories include one or more diffraction elements, effective to receive the incoming beam and produce a plane of diverging laser beams. In preferred embodiments the diffraction elements are self-leveling. When the diverging beams are directed against a surface such as a floor, wall or ceiling, a series of discrete spots define a visible reference line useful in construction layout. The spots themselves may each locate the position of a fastener to be installed, for example, by giving the approximately correct spacing for reference of the user. The generation of discrete spots rather than a solid line, as would be generated by a cylindrical lens, better allocates laser power by providing brighter, more visible reference elements on the wall or ceiling.
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Epps Georgia Y.
Freiburger Thomas M.
Levelite Technology, Inc.
Mack Ricky
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