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When will the TM-35-19 be widely used?

The ANSI/IES LM-80 test tells the lumen maintenance and the chromaticity shift but it does not indicate the estimation of the shift, while the TM-35-19 should do so.In the “Lumen and Chromaticity Ma...

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“Spectral Image Processing for Museum Lighting Using CIE LED Illuminants”.

Do you know in the latest CIE technical report 015:2018, 9 typical LED spectra are firstly mentioned and listed. Standard blue-pumped LED, hybrid-type LED, RGB-type LED and violet-pumped LED are all i...

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How many colors can be created in one individual LED? The answer could be “countless”.

In the LED era, we have the full flexibility that is difficult to imagine in the past. The semiconductor LED chip can “grow” in different chemical compositions that create different wavelengths �...

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New LED series of enhanced deep red + near-infrared spectrum.

With Yujileds phosphor and packaging technology, this specialized LED is available now. Extended 50% in 600nm-800nm than a standard LED and the homogeneous spectral power distribution achieves 90+ CRI...

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Is “dual-chip” in one package still the best solution for improving efficacy?

The “dual-chip” is indeed helpful to the flexible design of series or parallel, especially in the luminaire like an A60 bulb, and driving at low current with multiple-chip is generally considered ...

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Color Appearance Models (Third Edition) by Mark D. Fairchild Page 57-59: Basic and Advanced Colorimetry – The Triangle of Color

Color exists due to the interaction of light sources, objects, and the human visual system.The first requirement is a source of visible electromagnetic energy necessary to initiate the sensory process...

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