Fractional optimization of illumination optics

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

In order to bound yet keep realistic optical shapes for freeform illumination optics, fractional optimization is employed. By allowing the shape variables to freely vary, optimization leads to bizarre shapes that cannot be manufactured. Therefore, fractional shape variables that are referenced to other system variables are set. Optimization of the pseudo-collimation of an LED using a hybrid optic is presented. The shape of the hybrid optic is described by non-uniform rational B-splines (NURBS). Two examples of this system are optimized: maximum transfer efficiency into an intensity distribution of ±10° and maximum transfer and uniformity over this same angular range.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume7061
DOIs
StatePublished - 2008
EventNovel Optical Systems Design and Optimization XI - San Diego, CA, United States
Duration: Aug 10 2008Aug 14 2008

Other

OtherNovel Optical Systems Design and Optimization XI
CountryUnited States
CitySan Diego, CA
Period8/10/088/14/08

Fingerprint

Optics
Illumination
Fractional
Lighting
illumination
optics
optimization
Optimization
Splines
Light emitting diodes
collimation
splines
B-spline
Uniformity
light emitting diodes
Vary
Range of data

Keywords

  • Freeform
  • Hybrid optic
  • Illumination
  • Nonimaging optics
  • NURBS
  • Optical design
  • Optimization

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Koshel, R. J. (2008). Fractional optimization of illumination optics. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 7061). [70610F] https://doi.org/10.1117/12.810198

Fractional optimization of illumination optics. / Koshel, Richard John.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7061 2008. 70610F.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Koshel, RJ 2008, Fractional optimization of illumination optics. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 7061, 70610F, Novel Optical Systems Design and Optimization XI, San Diego, CA, United States, 8/10/08. https://doi.org/10.1117/12.810198
Koshel RJ. Fractional optimization of illumination optics. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7061. 2008. 70610F https://doi.org/10.1117/12.810198
Koshel, Richard John. / Fractional optimization of illumination optics. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7061 2008.
@inproceedings{f4b42619a7214f3d9284b4574ccc5f2f,
title = "Fractional optimization of illumination optics",
abstract = "In order to bound yet keep realistic optical shapes for freeform illumination optics, fractional optimization is employed. By allowing the shape variables to freely vary, optimization leads to bizarre shapes that cannot be manufactured. Therefore, fractional shape variables that are referenced to other system variables are set. Optimization of the pseudo-collimation of an LED using a hybrid optic is presented. The shape of the hybrid optic is described by non-uniform rational B-splines (NURBS). Two examples of this system are optimized: maximum transfer efficiency into an intensity distribution of ±10° and maximum transfer and uniformity over this same angular range.",
keywords = "Freeform, Hybrid optic, Illumination, Nonimaging optics, NURBS, Optical design, Optimization",
author = "Koshel, {Richard John}",
year = "2008",
doi = "10.1117/12.810198",
language = "English (US)",
isbn = "9780819472816",
volume = "7061",
booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",

}

TY - GEN

T1 - Fractional optimization of illumination optics

AU - Koshel, Richard John

PY - 2008

Y1 - 2008

N2 - In order to bound yet keep realistic optical shapes for freeform illumination optics, fractional optimization is employed. By allowing the shape variables to freely vary, optimization leads to bizarre shapes that cannot be manufactured. Therefore, fractional shape variables that are referenced to other system variables are set. Optimization of the pseudo-collimation of an LED using a hybrid optic is presented. The shape of the hybrid optic is described by non-uniform rational B-splines (NURBS). Two examples of this system are optimized: maximum transfer efficiency into an intensity distribution of ±10° and maximum transfer and uniformity over this same angular range.

AB - In order to bound yet keep realistic optical shapes for freeform illumination optics, fractional optimization is employed. By allowing the shape variables to freely vary, optimization leads to bizarre shapes that cannot be manufactured. Therefore, fractional shape variables that are referenced to other system variables are set. Optimization of the pseudo-collimation of an LED using a hybrid optic is presented. The shape of the hybrid optic is described by non-uniform rational B-splines (NURBS). Two examples of this system are optimized: maximum transfer efficiency into an intensity distribution of ±10° and maximum transfer and uniformity over this same angular range.

KW - Freeform

KW - Hybrid optic

KW - Illumination

KW - Nonimaging optics

KW - NURBS

KW - Optical design

KW - Optimization

UR - http://www.scopus.com/inward/record.url?scp=56249102654&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=56249102654&partnerID=8YFLogxK

U2 - 10.1117/12.810198

DO - 10.1117/12.810198

M3 - Conference contribution

AN - SCOPUS:56249102654

SN - 9780819472816

VL - 7061

BT - Proceedings of SPIE - The International Society for Optical Engineering

ER -