All-reflective optical target illumination system with high numerical aperture

Title: All-reflective optical target illumination system with high numerical aperture

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Abstract

An all-reflective optical system for providing illumination of a target focal region at high numerical aperture from a pair of co-axially, confluent collimated light beams. A target cavity is defined by a pair of opposed inner ellipsoidal reflectors having respective first focal points within a target region and second focal points at a vertex opening in the opposing reflector. Outwardly of each inner reflector is the opposed combination of a spherical reflector, and an outer generally ellipsoidal reflector having an aberrated first focal point coincident with the focus of the opposing spherical reflector and a second focal point coincident with the second focal point of the opposing inner ellipsoidal reflector through a vertex opening in the spherical reflector. The confluent collimated beams are incident through vertex openings in the outer ellipsoidal reflectors onto respective opposing spherical reflectors. Each beam is reflected by the associated spherical reflector onto the opposing outer ellipsoidal reflector and focused thereby onto the opposing inner ellipsoidal reflector, and then onto the target region.

Inventors:

Sigler, Robert D ^[1]

Ann Arbor, MI

Issue Date:: 1978-01-01

OSTI Identifier:: 863055

Patent Number(s):: 4084887

Assignee:: KMS Fusion, Inc. (Ann Arbor, MI)

Patent Classifications (CPCs):: G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

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G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
G02B19/0023 - {at least one surface having optical power}
G02B19/008 - {adapted to collect light from a complete hemisphere or a plane extending 360 degrees around the detector}
G02B5/10 - with curved faces

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DOE Contract Number:: E(11-1)-2709

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: all-reflective; optical; target; illumination; numerical; aperture; providing; focal; region; pair; co-axially; confluent; collimated; light; beams; cavity; defined; opposed; inner; ellipsoidal; reflectors; respective; vertex; opposing; reflector; outwardly; combination; spherical; outer; aberrated; coincident; focus; incident; openings; beam; reflected; associated; focused; collimated light; all-reflective optical; reflective optical; target region; numerical aperture; light beam; light beams; collimated beam; target illumination; focal region; ellipsoidal reflector; providing illumination; optical target; collimated beams; ellipsoidal reflectors; confluent collimated; target focal; /359/376/

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                    Sigler, Robert D. All-reflective optical target illumination system with high numerical aperture.  United States: N. p., 1978. 
        Web.

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                    Sigler, Robert D. All-reflective optical target illumination system with high numerical aperture.  United States.

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                    Sigler, Robert D. Sun .  
        "All-reflective optical target illumination system with high numerical aperture".  United States.  https://www.osti.gov/servlets/purl/863055.

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@article{osti_863055,

  title        = {All-reflective optical target illumination system with high numerical aperture},

  author       = {Sigler, Robert D},

  abstractNote = {An all-reflective optical system for providing illumination of a target focal region at high numerical aperture from a pair of co-axially, confluent collimated light beams. A target cavity is defined by a pair of opposed inner ellipsoidal reflectors having respective first focal points within a target region and second focal points at a vertex opening in the opposing reflector. Outwardly of each inner reflector is the opposed combination of a spherical reflector, and an outer generally ellipsoidal reflector having an aberrated first focal point coincident with the focus of the opposing spherical reflector and a second focal point coincident with the second focal point of the opposing inner ellipsoidal reflector through a vertex opening in the spherical reflector. The confluent collimated beams are incident through vertex openings in the outer ellipsoidal reflectors onto respective opposing spherical reflectors. Each beam is reflected by the associated spherical reflector onto the opposing outer ellipsoidal reflector and focused thereby onto the opposing inner ellipsoidal reflector, and then onto the target region.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1978},

  month        = {1}

}

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