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

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:
 [1]
  1. Ann Arbor, MI
Publication Date:
OSTI Identifier:
863055
Patent Number(s):
US 4084887
Assignee:
KMS Fusion, Inc. (Ann Arbor, MI)
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/

Citation Formats

Sigler, Robert D. All-reflective optical target illumination system with high numerical aperture. United States: N. p., 1978. Web.
Sigler, Robert D. All-reflective optical target illumination system with high numerical aperture. United States.
Sigler, Robert D. Sun . "All-reflective optical target illumination system with high numerical aperture". United States. https://www.osti.gov/servlets/purl/863055.
@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 = {},
url = {https://www.osti.gov/biblio/863055}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}

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