Portable laser range finder and digital compass assembly

Details Portable laser range finder and digital compass assembly Portable laser range finder and digital compass assembly

1997-08-21

1998-11-03

Hellner, Mark

Optics: measuring and testing

Range or remote distance finding

With photodetection

89 4106, G01C 0308, F41G 0132

Patent

active

058317180

ABSTRACT:
Portable, lightweight, compact, eye-safe, battery-operated laser range finder and digital compass assembly, mountable onto a personal weapon or aiming device, to accurately measure distance, azimuth and elevation angle of a target and increase the accuracy and probability of the hit. The laser range finder and digital compass assembly has a laser transmitter for transmitting an output laser beam having a wavelength in the range of 1.0 to 1.1 microns, an OPO converter for converting the output laser beam to an eye-safe range between 1.5 and 2.2 microns whose time of travel to and from an external target is measured to obtain the range, an expander for expanding the converted output laser beam, a detector for receiving a returned laser beam reflected from the external target and for producing a signal related to the time interval between the output pump beam and the returned pump beam, a digital compass assembly, a microprocessor, and a device for boresighting the expander with the external target, operatively connected to the laser transmitter. The device is placed in a housing adapted for mounting the device onto the personal weapon or aiming device. The laser transmitter is a flashlamp-pumped, battery-operated pump laser.

REFERENCES:
patent: 4949089 (1990-08-01), Ruszkowski, Jr.
patent: 5669174 (1997-09-01), Teetzel

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