COLOR CORRECTING OPTICAL ELEMENT

A circular symmetric optical element for redirecting light which is emitted by a light source through a wavelength converting element, wherein the emitted light have an average color cA and a wavelength distribution depending on an emission angle from the wavelength converting element. Light having...

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Bibliographische Detailangaben
Hauptverfasser:	PRINS, Cornelia Roline, TUKKER, Teunis Willem, IJZERMAN, Willem Lubertus
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS BLASTING ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LIGHT SOURCES NOT OTHERWISE PROVIDED FOR LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATINGELEMENTS LIGHTING MECHANICAL ENGINEERING NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS SEMICONDUCTOR DEVICES STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	A circular symmetric optical element for redirecting light which is emitted by a light source through a wavelength converting element, wherein the emitted light have an average color cA and a wavelength distribution depending on an emission angle from the wavelength converting element. Light having the average color cA have an emission angle tA. The optical element comprises: a first optical portion configured to receive and redirect light having emission angles from the wavelength converting element lower than tA, and a second optical portion configured to receive and redirect light having emission angles from the wavelength converting element higher than tA, wherein the first and second optical portions are individually configured such that for light of each selected out-coupling angle of the optical element, there is light received and redirected by the first optical portion to the selected out-coupling angle of the optical element, and corresponding light received and redirected by the second optical portion to the selected out-coupling angle from the optical element such that the total light beam emitted from the optical element as seen in the far field have a homogeneous color.