Optical sighting device

Details Optical sighting device Optical sighting device

1978-08-25

1980-11-11

Corbin, John K.

Optics: measuring and testing

Angle measuring or angular axial alignment

Apex of angle at observing or detecting station

33276, 350145, G01C 100

Patent

active

042329655

ABSTRACT:
A handheld optical sighting device having a sighting means for direct forward observation and reflective surfaces that enable images of two objects, one directly ahead of and one directly to the rear of an observer to coincide when the device is aligned with and between the two objects. The device includes two reflective surfaces for reflecting light rays from the rear object by 180 degrees.

REFERENCES:
patent: 2796805 (1957-06-01), Morgan
patent: 3801187 (1974-04-01), McMichael
patent: 3973835 (1976-08-01), Miyakawa et al.

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