Coherent light generators – Miscellaneous
Reexamination Certificate
2006-10-03
2006-10-03
Rodriguez, Armando (Department: 2828)
Coherent light generators
Miscellaneous
C033S227000
Reexamination Certificate
active
07116697
ABSTRACT:
The present invention relates to laser leveling device suitable for construction. The present invention uses a standard low cost laser diode module as the laser source and optical system. A novel method is provided to align the non-collimated beam emitted from the standard low cost laser diode module so that it is perpendicular to the rotational axis of the laser level. The present invention describes a laser level which can be operated in four different modes: dot mode, line mode, oscillation mode and plane mode. Dot mode provides two level laser dots. Line mode provides a short bright level line. Oscillation mode provides a long bright reference line. Plane mode provides a level 360 degree reference plane. The invention also provides a structure which allows two vertical reference planes which are perpendicular to each other and perpendicular to the horizontal reference plane to be generated.
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Advertisement for Laser Chalkline in JLC'sTools of the Trade, Fall 1995, Issue, p. 11.
Article on Rotating Laser Levels in JLC'sTools of the Trade, Fall 1995, Issue, pp. 49-53.
Ayala Adan
Black & Decker Inc.
Key Joseph F.
Rodriguez Armando
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