Photoelectric direction finder

Details Photoelectric direction finder Photoelectric direction finder

1979-03-12

1981-09-01

Jordan, Charles T.

Aeronautics and astronautics

Missile stabilization or trajectory control

Automatic guidance

250203R, F41G 700

Patent

active

042867606

ABSTRACT:
A direction finder including downstream the reticle an intermediate objective and a four quadrant detector, the reticle providing a modulation at a given frequency and in which the intermediate objective comprises preferably a half-ball lens whose center of curvature coincides substantially with the detector center to allow a relative movement of the reticle with respect to the detector, such as a rotation round this center controlled by a driving device.

REFERENCES:
patent: 3076095 (1963-01-01), Becklund et al.
patent: 3642233 (1972-02-01), Bezerie
patent: 3944167 (1976-03-01), Figler et al.
patent: 4006356 (1977-02-01), Johnson et al.
patent: 4009393 (1977-02-01), Ashley, Jr. et al.
patent: 4030807 (1977-06-01), Briney
patent: 4039246 (1977-08-01), Voigt
patent: 4131254 (1978-12-01), Underwood

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