Optics: measuring and testing – Angle measuring or angular axial alignment – Photodetection of inclination from level or vertical
Reexamination Certificate
2007-12-04
2007-12-04
Tarcza, Thomas H. (Department: 3662)
Optics: measuring and testing
Angle measuring or angular axial alignment
Photodetection of inclination from level or vertical
C356S139010
Reexamination Certificate
active
11289244
ABSTRACT:
A laser distance-measuring device includes a laser-transmitting portion, a laser-receiving portion, a coupling portion, an inclination-measuring portion, a signal-processing portion, and a display. The laser-transmitting portion emits a laser beam, and the laser-receiving portion receives the laser beam. The coupling portion interconnects the laser-receiving portion and the signal-processing portion. The inclination-measuring portion detects an inclination angle of the laser beam. The signal-processing portion processes the signals received from the laser-receiving portion and the inclination-measuring portion and sends the result to the display. The display receives and displays the result of processing by the signal-processing portion.
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patent: 5291262 (1994-03-01), Dunne
patent: 5949531 (1999-09-01), Ehbets et al.
patent: 6052190 (2000-04-01), Sekowski et al.
patent: 6624881 (2003-09-01), Waibel et al.
U.S. Appl. No. 10/318,065, Asia Optical Co., Inc., whole document.
Chen Hai-Hua
Chen Hui-Qing
Chien Pie-Yau
Li Liang
Liu Hua-Tang
Asia Optical Co. Inc.
Ratcliffe Luke D.
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