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Title: Achromatic illumination system for small targets

Abstract

A pair of light beams is directed to provide illumination that is substantially uniform from all directions on a small target by a system comprising a pair of corrector windows, a pair of planar reflecting surfaces, a pair of paraboloidal mirrors and a reflecting mirror cavity. The components are arranged so that each of the beams passes through a corrector and is reflected from the planar surface to the paraboloidal mirror, from which it is focused through a hole in the planar surface to the interior of the cavity. The surface of the interior portion of the cavity is shaped to reflect the focused beam three times before the focused reflected beam strikes the target.

Inventors:
 [1]
  1. Ann Arbor, MI
Publication Date:
OSTI Identifier:
863276
Patent Number(s):
US 4136926
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
E(11-1)-2709
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
achromatic; illumination; targets; pair; light; beams; directed; provide; substantially; uniform; directions; target; comprising; corrector; windows; planar; reflecting; surfaces; paraboloidal; mirrors; mirror; cavity; components; arranged; passes; reflected; surface; focused; interior; portion; shaped; reflect; beam; times; strikes; interior portion; reflecting mirror; reflecting surfaces; light beam; substantially uniform; light beams; reflecting surface; planar surface; reflected beam; focused beam; beams pass; paraboloidal mirrors; paraboloidal mirror; /359/362/376/

Citation Formats

Sigler, Robert D. Achromatic illumination system for small targets. United States: N. p., 1979. Web.
Sigler, Robert D. Achromatic illumination system for small targets. United States.
Sigler, Robert D. Mon . "Achromatic illumination system for small targets". United States. https://www.osti.gov/servlets/purl/863276.
@article{osti_863276,
title = {Achromatic illumination system for small targets},
author = {Sigler, Robert D},
abstractNote = {A pair of light beams is directed to provide illumination that is substantially uniform from all directions on a small target by a system comprising a pair of corrector windows, a pair of planar reflecting surfaces, a pair of paraboloidal mirrors and a reflecting mirror cavity. The components are arranged so that each of the beams passes through a corrector and is reflected from the planar surface to the paraboloidal mirror, from which it is focused through a hole in the planar surface to the interior of the cavity. The surface of the interior portion of the cavity is shaped to reflect the focused beam three times before the focused reflected beam strikes the target.},
doi = {},
url = {https://www.osti.gov/biblio/863276}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {1}
}

Patent:

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