Conformal all-reflective beam-steering (CARBS) device

Details Conformal all-reflective beam-steering (CARBS) device Conformal all-reflective beam-steering (CARBS) device

2005-05-17

2005-05-17

Phan, James (Department: 2872)

Optical: systems and elements

Deflection using a moving element

By moving a reflective element

C359S226200, C359S208100, C359S853000, C359S858000

Reexamination Certificate

active

06894818

ABSTRACT:
A conformed all-reflective beam-steering (CARBS) device is provided which is a hybrid of a mirror and one-axis gimbal assembly mounted on a rotating carriage. The CARBS device functions as a coarse-steering element in an electro-optical tracking system. The one-axis gimbal only has to steer over 0-45° elevation (El), rather than the more typical +/−45° El. To provide a full field of regard (FOR), the present invention relies on a rotating carriage to rotate 360°. The present invention facilitates the full FOR by positioning a mirror and one-axis gimbal assembly close to the exit pupil window. Further, the present invention takes advantage of decentration and off-axis parabolic reflectors to maintain a small footprint. This compact design allows for lower system inertia, which reduces power draw, and further provides a system which may be package to meet upcoming military modular packaging requirements.

REFERENCES:
patent: 3211046 (1965-10-01), Kennedy
patent: 6078420 (2000-06-01), Macken

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