Method for aberration-free optical recording of highly resolved

Details Method for aberration-free optical recording of highly resolved Method for aberration-free optical recording of highly resolved

1975-06-03

1977-08-02

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

73 675H, 340 5H, 350 35, G01S 704, G01S 902, G02B 2700

Patent

active

040400565

ABSTRACT:
A method for aberration free optical recording of highly resolved sonar or radar maps wherein a series of one-dimensional holograms is recorded as a function of the receiving time with the help of pulsed sonar or radar and is coherently optically reconstructed, and wherein the one-dimensional holograms are reconstructed through the utilization of a cylindrical lens whose axis of rotation forms an angle with the optical axis such that both the image distance and the image enlargement are independent of distance, the angle being equal to the angle formed between the azimuth coordinate and the optical axis.

REFERENCES:
patent: 2155659 (1939-04-01), Jeffree
patent: 2976362 (1961-03-01), Stamps
patent: 3519331 (1970-07-01), Cutrona et al.
patent: 3631384 (1971-12-01), Smith, Jr.
patent: 3685051 (1972-08-01), Wells

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