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Gamma Scientific - Spectroradiometric Light Measurement Products |
| RoadVista - Retroreflectometer manufacturer for Highway Safety |
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| NIST - National
Institute of Standards and Technology |
| NPL - National Physical Laboratory - UK |
| NRC - The National Research Council of Canada |
| |
| OSA - Optical Society of America |
| SID - The Society for Information Display |
| SPIE - The International Society for Optical Engineering |
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