Optical system

Details Optical system Optical system

1977-12-02

1980-04-22

Corbin, John K.

Optics: measuring and testing

Fiducial instruments

356141, 356152, G01C 100

Patent

active

041992563

ABSTRACT:
An optical system for determining the angular deviation of a movable object from a pre-selected target, wherein an objective lens projects an image of the target in a first focal plane and projects an image of the movable object in a further focal plane. A prism divides the images, with the target image being tramsmitted to an ocular and the movable object image being transmitted to a detector.

REFERENCES:
patent: 3672607 (1972-06-01), Stauff et al.
patent: 3699341 (1972-10-01), Quillinan et al.
patent: 3820742 (1974-06-01), Watkins
patent: 3845276 (1974-10-01), Keudy et al.

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