Light collection optics for measuring flux and spectrum from light-emitting devices
Abstract
Systems and methods for accurately measuring the luminous flux and color (spectra) from light-emitting devices are disclosed. An integrating sphere may be utilized to directly receive a first portion of light emitted by a light-emitting device through an opening defined on the integrating sphere. A light collector may be utilized to collect a second portion of light emitted by the light-emitting device and direct the second portion of light into the integrating sphere through the opening defined on the integrating sphere. A spectrometer may be utilized to measure at least one property of the first portion and the second portion of light received by the integrating sphere.
- Inventors:
- Issue Date:
- Research Org.:
- KLA-Tencor Corporation, Milpitas, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1254166
- Patent Number(s):
- 9347824
- Application Number:
- 14/527,034
- Assignee:
- KLA-Tencor Corporation (Milpitas, CA)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT
- DOE Contract Number:
- EE0005877
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2014 Oct 29
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
McCord, Mark A., DiRegolo, Joseph A., and Gluszczak, Michael R. Light collection optics for measuring flux and spectrum from light-emitting devices. United States: N. p., 2016.
Web.
McCord, Mark A., DiRegolo, Joseph A., & Gluszczak, Michael R. Light collection optics for measuring flux and spectrum from light-emitting devices. United States.
McCord, Mark A., DiRegolo, Joseph A., and Gluszczak, Michael R. Tue .
"Light collection optics for measuring flux and spectrum from light-emitting devices". United States. https://www.osti.gov/servlets/purl/1254166.
@article{osti_1254166,
title = {Light collection optics for measuring flux and spectrum from light-emitting devices},
author = {McCord, Mark A. and DiRegolo, Joseph A. and Gluszczak, Michael R.},
abstractNote = {Systems and methods for accurately measuring the luminous flux and color (spectra) from light-emitting devices are disclosed. An integrating sphere may be utilized to directly receive a first portion of light emitted by a light-emitting device through an opening defined on the integrating sphere. A light collector may be utilized to collect a second portion of light emitted by the light-emitting device and direct the second portion of light into the integrating sphere through the opening defined on the integrating sphere. A spectrometer may be utilized to measure at least one property of the first portion and the second portion of light received by the integrating sphere.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 24 00:00:00 EDT 2016},
month = {Tue May 24 00:00:00 EDT 2016}
}
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