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Title: Crystal diffraction lens with variable focal length

Abstract

A method and apparatus for altering the focal length of a focusing element o one of a plurality of pre-determined focal lengths by changing heat transfer within selected portions of the element by controlled quantities. Control over heat transfer is accomplished by manipulating one or more of a number of variables, including: the amount of heat or cold applied to surfaces; type of fluids pumped through channels for heating and cooling; temperatures, directions of flow and rates of flow of fluids; and placement of channels.

Inventors:
 [1]
  1. Hinsdale, IL
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
867760
Patent Number(s):
5004319
Assignee:
United States of America as represented by Department of Energy (Washington, DC)
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
crystal; diffraction; lens; variable; focal; length; method; apparatus; altering; focusing; element; plurality; pre-determined; lengths; changing; heat; transfer; selected; portions; controlled; quantities; control; accomplished; manipulating; variables; including; amount; cold; applied; surfaces; type; fluids; pumped; channels; heating; cooling; temperatures; directions; flow; rates; placement; focal length; heat transfer; selected portion; selected portions; crystal diffraction; focusing element; focal lengths; changing heat; controlled quantities; /359/378/

Citation Formats

Smither, Robert K. Crystal diffraction lens with variable focal length. United States: N. p., 1991. Web.
Smither, Robert K. Crystal diffraction lens with variable focal length. United States.
Smither, Robert K. Tue . "Crystal diffraction lens with variable focal length". United States. https://www.osti.gov/servlets/purl/867760.
@article{osti_867760,
title = {Crystal diffraction lens with variable focal length},
author = {Smither, Robert K},
abstractNote = {A method and apparatus for altering the focal length of a focusing element o one of a plurality of pre-determined focal lengths by changing heat transfer within selected portions of the element by controlled quantities. Control over heat transfer is accomplished by manipulating one or more of a number of variables, including: the amount of heat or cold applied to surfaces; type of fluids pumped through channels for heating and cooling; temperatures, directions of flow and rates of flow of fluids; and placement of channels.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {1}
}

Patent:

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