Sensing device for ascertaining imaging errors

Details Sensing device for ascertaining imaging errors Sensing device for ascertaining imaging errors

1985-04-10

1987-05-19

LaRoche, Eugene R.

Optics: measuring and testing

Lamp beam direction or pattern

356354, G01J 100

Patent

active

046662987

ABSTRACT:
A sensing device for use in an adaptive optic system, being provided with an optical phase correcting element, is specifically provided for ascertaining errors in the image of an object as imaged by the adaptive optical system as follows; rod lenses subdivide the entrance pupil of the aperture into a plurality of juxtaposed subapertures having a diameter corresponding to Fried's coherence diameter to obtain a respective plurality of individual images of the object; a high resolution optical-electrical detector array is positioned to receive the plurality of juxtaposed individual images; the relative disposition of the subimages is ascertained under utilization of a correlation computer.

REFERENCES:
patent: 4141652 (1979-02-01), Feinleib
patent: 4309602 (1982-01-01), Gonsalves et al.
patent: 4508963 (1985-04-01), Wilwerding et al.
patent: 4518854 (1985-05-01), Hutchin

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