Diffraction limited imaging systems

Details Diffraction limited imaging systems Diffraction limited imaging systems

1982-11-23

1985-10-22

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

378 71, H04N 718

Patent

active

045492042

ABSTRACT:
An imaging system for obtaining information within the diffraction limit comprises an illuminating source of radiation, e.g. a laser. A lens system focuses radiation from a small area of an object onto a detector array in an image plane. The detectors measure the amplitude of the received radiation giving a matrix of information. This matrix is then inverted by a computer to reconstruct the image for observation on a cathode ray tube. The object is scanned by scanning the radiation or stepping the object.

REFERENCES:
patent: 3409872 (1968-12-01), Hogg et al.
patent: 3604806 (1971-09-01), Redman
patent: 3835247 (1974-09-01), Soames
patent: 3937580 (1976-02-01), Kasdan
patent: 4121247 (1978-10-01), Henry
patent: 4136950 (1979-01-01), Labrum et al.
Bertero M. and Pike, E. R., "Resolution in Diffraction-Limited Imaging, A Singular Value Analysis", Optica Acta, 1982, vol. 29, No. 6, pp. 727-746.

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