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Title: Far field construction for optical fourier transforms

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.


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Inventors: Hartman, Richard L. (Huntsville, AL, US)

Application Number: 510519
Filing Date: 1974-09-30
Publication_date: 1976-01-13
Assignee: The United States of America as represented by the Secretary of the Army (Washington, DC)
Primary Class(es): 250/216 250/203.2, 356/4.01, 356/6
Other Classes:
US Patent Ref:
3001079Sep, 1961Straub250/216.
3601488Aug, 1971Ripart356/6.

Other Refs:
Primary Examiner: Borchelt, Archie R.
Assistant Examiner: La Roche, E. R.
Attorney: Edelberg; Nathan, Gibson; Robert P., Deaton; James T.