Far field construction for optical fourier transforms

Details Far field construction for optical fourier transforms Far field construction for optical fourier transforms

1974-09-30

1976-01-13

Borchelt, Archie R.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250203, 343 177, 356 4, 356 6, G01C 2500

Patent

active

039327450

ABSTRACT:
An optical reflective device for reflecting electromagnetic energy such as aser energy into a two-way spatial transform apparatus and onto a target for reflecting the energy back to the transform apparatus and onto a detector in an off-set input transform plane to cause far field pattern of the target to be located on the detector. Transmissive optics as well as reflective optics can be used in the optical reflective device.

REFERENCES:
patent: 3001079 (1961-09-01), Straub
patent: 3601488 (1971-08-01), Ripart

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