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Efficiency and uniformity comparisons between a diffusing‐optics source and a lamp‐imaging source
Author(s) -
Spadaro John
Publication year - 1991
Publication title -
color research and application
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 62
eISSN - 1520-6378
pISSN - 0361-2317
DOI - 10.1002/col.5080160607
Subject(s) - reflector (photography) , optics , light source , integrating sphere , diffuse reflection , spheres , physics , materials science , astronomy
Integrating spheres, when used in a light source, offer a highly uniform illuminated area and, when used in conjunction with a reflective diffuse sleeve, can offer effeciencies equivalent to that of a lamp‐imaging reflector system. The diffuse sleeve provides a means for the sphere to use light normally lost while maintaining a beam that is substantially more uniform than the reflector system. This article describes a test comparison between a modified diffuse integrating sphere source and a lamp‐imaging optics source.