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Title: Broadband diffractive lens or imaging element

Abstract

A broadband diffractive lens or imaging element produces a sharp focus and/or a high resolution image with broad bandwidth illuminating radiation. The diffractive lens is sectored or segmented into regions, each of which focuses or images a distinct narrowband of radiation but all of which have a common focal length. Alternatively, a serial stack of minus filters, each with a diffraction pattern which focuses or images a distinct narrowband of radiation but all of which have a common focal length, is used. The two approaches can be combined. Multifocal broadband diffractive elements can also be formed. Thin film embodiments are described.

Inventors:
 [1];  [2];  [3];  [1]
  1. (Livermore, CA)
  2. (Modesto, CA)
  3. (Oakland, CA)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
868990
Patent Number(s):
US 5257132
Assignee:
United States of America as represented by United States (Washington, DC) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
broadband; diffractive; lens; imaging; element; produces; sharp; focus; resolution; image; broad; bandwidth; illuminating; radiation; sectored; segmented; regions; focuses; images; distinct; narrowband; common; focal; length; alternatively; serial; stack; minus; filters; diffraction; pattern; approaches; combined; multifocal; elements; formed; film; embodiments; described; broadband diffractive; common focal; focal length; diffractive element; diffractive lens; broad band; diffraction pattern; broad bandwidth; active element; sharp focus; active elements; imaging element; resolution image; diffractive elements; illuminating radiation; element produces; bandwidth illuminating; /359/

Citation Formats

Ceglio, Natale M., Hawryluk, Andrew M., London, Richard A., and Seppala, Lynn G.. Broadband diffractive lens or imaging element. United States: N. p., 1993. Web.
Ceglio, Natale M., Hawryluk, Andrew M., London, Richard A., & Seppala, Lynn G.. Broadband diffractive lens or imaging element. United States.
Ceglio, Natale M., Hawryluk, Andrew M., London, Richard A., and Seppala, Lynn G.. Fri . "Broadband diffractive lens or imaging element". United States. https://www.osti.gov/servlets/purl/868990.
@article{osti_868990,
title = {Broadband diffractive lens or imaging element},
author = {Ceglio, Natale M. and Hawryluk, Andrew M. and London, Richard A. and Seppala, Lynn G.},
abstractNote = {A broadband diffractive lens or imaging element produces a sharp focus and/or a high resolution image with broad bandwidth illuminating radiation. The diffractive lens is sectored or segmented into regions, each of which focuses or images a distinct narrowband of radiation but all of which have a common focal length. Alternatively, a serial stack of minus filters, each with a diffraction pattern which focuses or images a distinct narrowband of radiation but all of which have a common focal length, is used. The two approaches can be combined. Multifocal broadband diffractive elements can also be formed. Thin film embodiments are described.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1993},
month = {Fri Jan 01 00:00:00 EST 1993}
}

Patent:

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