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Title: Dispersion-compensated fresnel lens

Abstract

A transmission grating is used to reduce chromatic aberration in a Fresnel lens, wherein the lens chromatic dispersion is offset and substantially canceled by the grating's diffraction-induced dispersion. The grating comprises a Fresnel-type pattern of microscopic facets molded directly into the lens surface. The facets would typically have a profile height of around 4.multidot.10.sup.-5 inch and a profile width of at least 10.sup.-3 inch. In its primary intended application, the invention would function to improve the optical performance of a Fresnel lens used to concentrate direct sunlight.

Inventors:
 [1]
  1. 1215 Brewster Dr., El Cerrito, CA 94530
Issue Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
OSTI Identifier:
868526
Patent Number(s):
5161057
Assignee:
Johnson, Kenneth C. (1215 Brewster Dr., El Cerrito, CA 94530)
Patent Classifications (CPCs):
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
F - MECHANICAL ENGINEERING F24 - HEATING F24S - SOLAR HEAT COLLECTORS
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
dispersion-compensated; fresnel; lens; transmission; grating; reduce; chromatic; aberration; dispersion; offset; substantially; canceled; diffraction-induced; comprises; fresnel-type; pattern; microscopic; facets; molded; directly; surface; typically; profile; height; multidot; 10; -5; inch; width; -3; primary; intended; application; function; improve; optical; performance; concentrate; direct; sunlight; optical performance; intended application; transmission grating; fresnel lens; primary intended; chromatic dispersion; chromatic aberration; /359/

Citation Formats

Johnson, Kenneth C. Dispersion-compensated fresnel lens. United States: N. p., 1992. Web.
Johnson, Kenneth C. Dispersion-compensated fresnel lens. United States.
Johnson, Kenneth C. Wed . "Dispersion-compensated fresnel lens". United States. https://www.osti.gov/servlets/purl/868526.
@article{osti_868526,
title = {Dispersion-compensated fresnel lens},
author = {Johnson, Kenneth C},
abstractNote = {A transmission grating is used to reduce chromatic aberration in a Fresnel lens, wherein the lens chromatic dispersion is offset and substantially canceled by the grating's diffraction-induced dispersion. The grating comprises a Fresnel-type pattern of microscopic facets molded directly into the lens surface. The facets would typically have a profile height of around 4.multidot.10.sup.-5 inch and a profile width of at least 10.sup.-3 inch. In its primary intended application, the invention would function to improve the optical performance of a Fresnel lens used to concentrate direct sunlight.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}

Works referenced in this record:

Aberrations of curved zone plates and Fresnel lenses
journal, January 1977


Development Of A Compound Interlaced Grating For High Energy Laser Systems
conference, February 1981


The Phase Fresnel Lens
journal, January 1961


Color-corrected Fresnel lens for solar concentration
journal, January 1980


Compensating Optical Systems Part1: Broadband Holographic Reconstruction
journal, January 1972


Holographic correction of both chromatic and spherical aberrations of single glass lenses
journal, January 1979


Achromatized holographic phase shifter and modulator
journal, July 1988


Optical performance of holographic kinoforms
journal, January 1989


Hybrid diffractive-refractive lenses and achromats
journal, January 1988


Diffraction theory for an achromatic Fourier transformation
journal, January 1981


Kinoform Lenses
journal, January 1970