Optical telescope

Details Optical telescope Optical telescope

2004-09-22

2009-10-20

Amari, Alessandro (Department: 2872)

Optical: systems and elements

Compound lens system

Telescope

C359S353000

Reexamination Certificate

active

07605977

ABSTRACT:
An apparatus for enhanced viewing of objects in two separate simultaneous frequency bands of light that is constructed in accordance with the principles of the present invention includes a primary mirror and a moveable secondary mirror that is disposed above the primary mirror to provide a long focal length. A beam splitter splits the optical path into two paths, one for infrared and another path for visible. Various optical elements and devices are described along each path. The secondary mirror is displaced away from its concentric position over the primary mirror to provide shorter focal lengths in IR and visible. Focal Plane Arrays (FPA's) are disposed where desired along both optical paths for real-time viewing and data acquisition. The preferred FPA in visible is a CCD. The preferred FPA in IR is disposed in a Dewar.

REFERENCES:
patent: 6222187 (2001-04-01), Shivanandan
patent: 7023615 (2006-04-01), Voigt et al.

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