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laboratory:measuring-lights-faq [2016/11/20 15:32] vitaliy_kiselev |
laboratory:measuring-lights-faq [2017/08/16 14:09] (current) vitaliy_kiselev |
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| + | ===== Measuring Illuminance ===== | ||
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| + | It is not so simple as it can look, as you need sensor with proper spectral response as well as proper integration hemisphere. | ||
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| + | What is the good cheap lux meter that is more or less accurate (it is considered around +-10%) | ||
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| + | I suggest to get this one - https://www.aliexpress.com/af/lux-meter-lx1010b.html (with large white integration cover). | ||
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| + | It is far from perfect, but not very bad for many lights. | ||
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| + | {{:laboratory:img3010.jpg|}} | ||
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| ===== Color quality estimation ===== | ===== Color quality estimation ===== | ||
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| Check good PDF at https://www.konicaminolta.eu/fileadmin/content/eu/Measuring_Instruments/4_Learning_Centre/C_A/What_is_Colour_Rendering_Index/Colour_Rendering_Index_EN.pdf | Check good PDF at https://www.konicaminolta.eu/fileadmin/content/eu/Measuring_Instruments/4_Learning_Centre/C_A/What_is_Colour_Rendering_Index/Colour_Rendering_Index_EN.pdf | ||
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| + | and also this very good one | ||
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| + | http://ledapplicatie.nl/wp-content/uploads/sites/32/2015/05/6-Konica-Minolta-Sensing-Europe-Color-Rendering-Index.pdf | ||
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| See more details at http://www.seleconlight.com/images/stories/files/Color_Quality_Scale_2010.pdf | See more details at http://www.seleconlight.com/images/stories/files/Color_Quality_Scale_2010.pdf | ||
| and http://www1.eere.energy.gov/buildings/publications/pdfs/ssl/cqs_rationale_06-10.pdf | and http://www1.eere.energy.gov/buildings/publications/pdfs/ssl/cqs_rationale_06-10.pdf | ||
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| + | ===== TM-30 Color Fidelity ===== | ||
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| + | 99 reference colors, graphical representation of results, lots of useful stuff. | ||
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| + | Check more detail at http://www.cormusa.org/uploads/CORM_2016_Ohno_presentation_TM-30__rev_.pdf | ||
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| + | {{:laboratory:img3001.jpg}} | ||
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| + | {{:laboratory:img3002.jpg}} | ||
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| + | {{:laboratory:img3003.jpg}} | ||
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| + | ===== TM-30 Samples ===== | ||
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| + | {{:laboratory:s267.jpg}} | ||
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| + | {{:laboratory:s268.jpg}} | ||
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| + | {{:laboratory:s269.jpg}} | ||
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| + | {{:laboratory:s270.jpg}} | ||
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| + | {{:laboratory:s271.jpg}} | ||
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| + | ===== TM-30 Rf versus CRI Ra ===== | ||
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| + | {{:laboratory:s272.jpg}} | ||
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| + | ===== Color Indexes Future ===== | ||
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| + | Check https://www.energystar.gov/sites/default/files/asset/document/Energy%20Star%20webinar%20Presentation%20-%20Ohno%202.pdf | ||
| ===== Color Rendering and efficiency conflict ===== | ===== Color Rendering and efficiency conflict ===== | ||