Rangefinder with transmitter, receiver, and viewfinder on a sing

Details Rangefinder with transmitter, receiver, and viewfinder on a sing Rangefinder with transmitter, receiver, and viewfinder on a sing

1994-10-13

1996-05-14

Tarcza, Thomas H.

Optics: measuring and testing

Range or remote distance finding

With photodetection

G01C 300

Patent

active

055172970

ABSTRACT:
A laser rangefinder (50) having visual, transmit and receive optical channels all arranged on a common rangefinder axis (70). A laser emitter (54) located on the axis directs its light away from the rangefinder output toward a reflector surface, also located on the axis. The reflector in turn reflects the laser light back toward the output to an objective lens (52) which collimates the reflected light into a collimated output beam. A portion of the light reflected from the target is passed through the objective lens and imaged onto a reticle (66) on the axis. A dichroic reflector (62) intercepts the imaged light and refracts a portion of the light to a field stop 60 and then to a detector 58, both located on the axis. A range display (64) is located in the plane of the reticle and off the axis for display target range information. An eye piece (68) receives light passing through the reticle.

REFERENCES:
patent: 3464770 (1969-09-01), Schmidt
patent: 3671127 (1972-06-01), Odone et al.
patent: 3698812 (1972-10-01), Nelson
patent: 3781552 (1973-12-01), Kadrmas
patent: 4165936 (1979-08-01), Eisenring et al.
patent: 4355893 (1982-10-01), Chiklis
patent: 4504143 (1985-03-01), Heinze et al.
patent: 5329347 (1994-07-01), Wallace et al.

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