ILLUMINATION DEVICE WITH OPTIMIZED COLOR GAMUT
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United States of America Patent
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Issued Date -
Apr 4, 2024
app pub date -
Sep 29, 2023
filing date -
Sep 29, 2022
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Abstract
An illumination device includes: a light source configured for emitting a primary light; a light conversion unit formed by or including a light conversion element including a front side and a back side, the light conversion element being configured for being illuminated with the primary light and for emitting a secondary light with a wavelength altered relative to the primary light, the light conversion element being configured, on illumination with the primary light, for emitting the secondary light which is characterized by a spectrum which defines a point in a CIE 1931 color space at least one of that: (i) together with a blue point and a red point of an REC709 window defines an area which covers at least 95% of the REC709 window; and (ii) has a radial distance from a green point of the REC709 window that is at most 0.02.
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