Dopler extended depth of field imaging system with coherent obje

Details Dopler extended depth of field imaging system with coherent obje Dopler extended depth of field imaging system with coherent obje

1979-12-03

1981-07-07

Corbin, John K.

G03H 114

Patent

active

042771277

ABSTRACT:
A packageable system employs principles of Doppler holography on near-field objects to produce images from which photographs, transparencies or video reproductions can be made with simultaneous improvements in depth of field, foreground-backregion exposure ratio, and resolution (where degraded by the object medium). The apparatus consists of two units: a main unit containing a laser and optics, and an external platform that rotates at an appropriate angular velocity, through a very small arc, during image recording of an object on the platform.

REFERENCES:
patent: 3572882 (1971-03-01), Neumann
patent: 3749470 (1973-07-01), Brown et al.
patent: 3816649 (1974-06-01), Butters et al.
patent: 3937555 (1976-02-01), Kurtz
patent: 3954322 (1976-05-01), Aleksoff et al.
Mottier, F. M., "Holography of Randomly Moving Objects", Applied Physics ters, vol. 15, Number 2, pp. 44-46, Jul. 1969.

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