LED LIGHTING ARRANGEMENT INCLUDING LIGHT EMITTING PHOSPHOR
First Claim
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1. A lighting arrangement comprising:
- a light transmissive substantially spherical shell;
at least one LED located within the shell and operable to generate light of a first wavelength range and at least one phosphor operable to absorb at least a portion of the light emitted by the LED and to emit light of a different wavelength range, wherein light generated by the arrangement comprises the combined light emitted by the LED and the phosphor and wherein the at least one phosphor is selected from the group consisting of;
being provided as a layer on at least a part of an inner surface of the shell;
being provided as a layer on at least a part of an outer surface of the shell;
being incorporated within the shell and combinations thereof.
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Abstract
A lighting arrangement comprises: a light transmissive substantially spherical shell; at least one LED located within the shell and operable to generate light of a first wavelength range and at least one phosphor operable to absorb at least a portion of the light emitted by the LED(s) and to emit light of a different wavelength range, wherein light generated by the arrangement comprises the combined light emitted by the LED(s) and the phosphor(s). The phosphor(s) can be provided as a layer on at least a part of the inner and/or outer surfaces of the shell or incorporated within the shell.
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Citations
19 Claims
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1. A lighting arrangement comprising:
- a light transmissive substantially spherical shell;
at least one LED located within the shell and operable to generate light of a first wavelength range and at least one phosphor operable to absorb at least a portion of the light emitted by the LED and to emit light of a different wavelength range, wherein light generated by the arrangement comprises the combined light emitted by the LED and the phosphor and wherein the at least one phosphor is selected from the group consisting of;
being provided as a layer on at least a part of an inner surface of the shell;
being provided as a layer on at least a part of an outer surface of the shell;
being incorporated within the shell and combinations thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
- a light transmissive substantially spherical shell;
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18. A lighting arrangement comprising:
- a light transmissive substantially spherical shell;
at least one LED located within the shell and operable to generate excitation light having a wavelength ranging from 300 nm to 500 nm and at least one phosphor operable to absorb at least a portion of the LED light and to emit light having a wavelength ranging from 450 to 700 nm, wherein light generated by the arrangement comprises the combined light emitted by the LED and the phosphor and is configured to appear white in color and wherein the at least one phosphor is selected from the group consisting of;
being provided as a layer on at least a part of the inner curved surface of the shell;
being provided as a layer on at least a part of the outer curved surface of the shell;
being incorporated within the shell and combinations thereof.
- a light transmissive substantially spherical shell;
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19. An optical component for a lighting arrangement comprising at least one LED operable to generate excitation light of a first wavelength range;
- at least one phosphor operable to absorb at least a portion of the light generated by the LED and to emit light of a second wavelength range, wherein light generated by the arrangement comprises the combined light of the first and second wavelength ranges;
the optical component comprising a light transmissive substantially spherical shell configured such that the LED is locatable within the shell and wherein the phosphor is selected from the group consisting of;
being provided as a layer on at least a part of the inner curved surface of the shell;
being provided as a layer on at least a part of the outer curved surface of the shell;
being incorporated within the shell and combinations thereof.
- at least one phosphor operable to absorb at least a portion of the light generated by the LED and to emit light of a second wavelength range, wherein light generated by the arrangement comprises the combined light of the first and second wavelength ranges;
Specification