Optical beam delivery system

Details Optical beam delivery system Optical beam delivery system

1992-11-18

1994-06-07

Ben, Loha

Optical: systems and elements

Lens

With multipart element

359619, 359622, 359625, 359626, 359737, G02B 2710

Patent

active

053194969

ABSTRACT:
The present invention is directed to an optical system which includes an image region having at least one light source which directs a beam of light along an optical axis and an object region which is adapted to receive the light from the light source. An optical delivery system is between the image region and object region. The optical delivery system receives the light from the image region and directs it to the object region. The optical delivery system is formed of a plurality of optical elements, such as lenses and volume holograms. The optical delivery system is designed to either receive a plurality of beams of light from a plurality of sources or different modes of a single light source and form a single spot of light in the image region having the combined power of all of the beams of light or modes of a single beam. The optical delivery system can also condense or expand the spacing between the beams of light from a plurality of light sources. The optical delivery system is designed so that the Lagrange invariant thereof at the object region is different from the Lagrange invariant thereof at the image region.

REFERENCES:
patent: 4185891 (1980-01-01), Kaestner
patent: 4428647 (1984-01-01), Sprague et al.
patent: 5139609 (1992-08-01), Fields et al.
patent: 5168401 (1992-12-01), Endriz

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