Geometrical instruments – Straight-line light ray type – Level
Reexamination Certificate
2006-05-09
2006-05-09
Guadalupe, Yaritza (Department: 2859)
Geometrical instruments
Straight-line light ray type
Level
C033S281000, C033S286000, C033SDIG021
Reexamination Certificate
active
07040030
ABSTRACT:
A laser centering device (30) that is attached to a survey apparatus by replacing it with a centering telescope optical system is formed of an inner barrel (32) that fixes a pentagonal prism (40) at one end thereof and is internally provided with a laser beam source (42), an intermediate barrel (34) that moves the inner barrel in the axial direction and fixes it so as to adjust the position thereof, and an outer barrel (36) that turns the intermediate barrel around the axis and fixes it so as to adjust the angle thereof, and at the same time, is fixed at the portion (38) for fixing the centering telescope optical system of the survey apparatus (1). The invention provides a laser centering device for which the emission direction of a laser beam is simply adjusted.
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Guadalupe Yaritza
Nixon & Peabody LLP
Sokkia Co. Ltd.
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