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:
-
- Livermore, CA
- Modesto, CA
- Oakland, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 868990
- Patent Number(s):
- 5257132
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- 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}
}
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