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Proceedings Paper

Newly patented process provides novel solution for increasing white light spectrum of LEDs
Author(s): Jan-Marie Spanard
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Paper Abstract

Light Spectrum Glazes has been granted a patent for the novel process of expanding and completing the spectral light array emitted by LED bulbs with transparent colors filters. Non-luminescent, low-cost, stable, and highly durable color filters are used to expand the jagged LED spectral emission into a full, true white light array. Transparent colors are applied in combination with existing manufacturing technologies as a final color-tuning step in bulb design. The quantity of emitted light that can be color filtered is adjustable from 1% to 100% of emitted light, creating a custom balance of light quantity with light quality. This invention recognizes that: (1) approximately 1/3 of people do not have trichromatic vision, (2) a robust white light spectrum of light is necessary to avoid metameric failure, and (3) "better light" quality is often as important or more important than "brighter light" quantity in the consumer marketplace.

Paper Details

Date Published: 14 February 2018
PDF: 13 pages
Proc. SPIE 10554, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XXII, 105541D (14 February 2018); doi: 10.1117/12.2290577
Show Author Affiliations
Jan-Marie Spanard, Light Spectrum Glazes (United States)

Published in SPIE Proceedings Vol. 10554:
Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XXII
Jong Kyu Kim; Michael R. Krames; Martin Strassburg; Li-Wei Tu, Editor(s)

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