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Title: Light collection optics for measuring flux and spectrum from light-emitting devices

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.
Authors:
; ;
Publication Date:
OSTI Identifier:
1254166
Report Number(s):
9,347,824
14/527,034
DOE Contract Number:
EE0005877
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Oct 29
Research Org:
KLA-Tencor Corporation, Milpitas, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE