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- Ohkubo Kazuaki
- Otsuka Electronics
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- Saito Mamoru
- Osaka Municipal Technical Research Institute
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- Hirokawa Katsuhisa
- Hiroshima Prefectural Technology Research Institute
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- Takahashi Tomokazu
- Tottori Institute of Industrial Technology
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- Shiga Hisashi
- Tottori Institute of Industrial Technology
Bibliographic Information
- Other Title
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- 球形光束計の測定値比較
Description
A mutual comparison of the measured values of the total-luminous-flux between the sphere photometers when using an integrating sphere in which the sizes differ was made, and the consistency was also considered. The same total-luminous-flux standard lamp was used to prevent affecting measured value to standard traceability. The LED lamps used for measurement were turned on for 100 hours or more. The reproducibility for all the lamps was less than ±0.2%. The total-luminous-flux of omnidirectional lamps with an angular luminous intensity distribution was the same as that for a standard lamp, which is accorded in less than 1% in the spheres. On the other hand, the total-luminous-flux of directional lamps was accorded in more than 1.5% in spheres. <br>The low light flux value measured by using the integrating sphere with a 1- m o diameter is considered to be the influence of the lamp support stand and another structure in the integrating sphere. Since the measured value of the integration hemisphere is the same as that of the large integrating spheres, there is very little structure that is causing the error with it.
Journal
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- JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN
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JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 98 (8A), 362-368, 2014
The Illuminating Engineering Institute of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390001204081560832
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- NII Article ID
- 130004704937
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- ISSN
- 1349838X
- 21851506
- 00192341
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed