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Title: Performance improvements of symmetry-breaking reflector structures in nonimaging devices

Abstract

A structure and method for providing a broken symmetry reflector structure for a solar concentrator device. The component of the optical direction vector along the symmetry axis is conserved for all rays propagated through a translationally symmetric optical device. This quantity, referred to as the translational skew invariant, is conserved in rotationally symmetric optical systems. Performance limits for translationally symmetric nonimaging optical devices are derived from the distributions of the translational skew invariant for the optical source and for the target to which flux is to be transferred. A numerically optimized non-tracking solar concentrator utilizing symmetry-breaking reflector structures can overcome the performance limits associated with translational symmetry.

Inventors:
Publication Date:
Research Org.:
Univ. of Chicago, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1174674
Patent Number(s):
6,676,263
Application Number:
10/212,010
Assignee:
University Of Chicago OSTI
DOE Contract Number:  
FG0287ER13726
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Winston, Roland. Performance improvements of symmetry-breaking reflector structures in nonimaging devices. United States: N. p., 2004. Web.
Winston, Roland. Performance improvements of symmetry-breaking reflector structures in nonimaging devices. United States.
Winston, Roland. Tue . "Performance improvements of symmetry-breaking reflector structures in nonimaging devices". United States. https://www.osti.gov/servlets/purl/1174674.
@article{osti_1174674,
title = {Performance improvements of symmetry-breaking reflector structures in nonimaging devices},
author = {Winston, Roland},
abstractNote = {A structure and method for providing a broken symmetry reflector structure for a solar concentrator device. The component of the optical direction vector along the symmetry axis is conserved for all rays propagated through a translationally symmetric optical device. This quantity, referred to as the translational skew invariant, is conserved in rotationally symmetric optical systems. Performance limits for translationally symmetric nonimaging optical devices are derived from the distributions of the translational skew invariant for the optical source and for the target to which flux is to be transferred. A numerically optimized non-tracking solar concentrator utilizing symmetry-breaking reflector structures can overcome the performance limits associated with translational symmetry.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {1}
}

Patent:

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