Coherent light generators – Particular resonant cavity – Mirror support or alignment structure
Patent
1997-02-25
1998-05-19
Scott, Jr., Leon
Coherent light generators
Particular resonant cavity
Mirror support or alignment structure
372108, 372 9, 372 92, H01S 308
Patent
active
057545820
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's Tools of the Trade, Fall 1995 Issue, p. 11.
Article on Rotating Laser Levels in JLC's Tools of the Trade, Fall 1995 Issue, pp. 49-53.
Jr. Leon Scott
Moll Robert
Momentum Laser, Inc.
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