LIGHT-EMITTING DEVICE, LIGHTING DEVICE, AND OPTICAL MEMBER
First Claim
1. A light-emitting device, comprising:
- one or more first light-emitting elements;
one or more second light-emitting elements; and
an optical member comprising;
a first light condenser portion disposed at a position corresponding to the one or more first light-emitting elements, the first light condenser portion condensing a portion of light emitted from the one or more first light-emitting elements;
a second light condenser portion surrounding the first light condenser portion, the second light condenser portion condensing a portion of the light that is not incident to the first light condenser portion among the light emitted from the one or more first light-emitting elements; and
a first light guide portion disposed at a periphery of the second light condenser portion and at a position corresponding to the one or more second light-emitting elements, the first light guide portion guiding light emitted from the one or more second light-emitting elements by causing total reflection in an interior of the first light guide portion,wherein a full width at half maximum of light exiting from the first light guide portion is larger than a full width at half maximum of light exiting from the first light condenser portion.
1 Assignment
0 Petitions
Accused Products
Abstract
A light-emitting device includes an optical member including first and second light emitting elements, first and second light condenser portions, and a light guide portion.
The first light condenser portion is disposed at a position corresponding to the first light-emitting element, and condenses a portion of light emitted from the first light-emitting element.
The second light condenser portion surrounds the first light condenser portion, and condenses a portion of the light that is not incident to the first light condenser portion among the light emitted from the first light-emitting element.
The light guide portion is disposed at a periphery of the second light condenser portion and at a position corresponding to the second light-emitting element, and guides light emitted from the second light-emitting element by causing total reflection in an interior of the light guide portion.
A full width at half maximum of light exiting from the light guide portion is larger than a full width at half maximum of light exiting from the first light condenser portion.
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Citations
28 Claims
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1. A light-emitting device, comprising:
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one or more first light-emitting elements; one or more second light-emitting elements; and an optical member comprising; a first light condenser portion disposed at a position corresponding to the one or more first light-emitting elements, the first light condenser portion condensing a portion of light emitted from the one or more first light-emitting elements; a second light condenser portion surrounding the first light condenser portion, the second light condenser portion condensing a portion of the light that is not incident to the first light condenser portion among the light emitted from the one or more first light-emitting elements; and a first light guide portion disposed at a periphery of the second light condenser portion and at a position corresponding to the one or more second light-emitting elements, the first light guide portion guiding light emitted from the one or more second light-emitting elements by causing total reflection in an interior of the first light guide portion, wherein a full width at half maximum of light exiting from the first light guide portion is larger than a full width at half maximum of light exiting from the first light condenser portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 21)
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16. A light-emitting device, comprising:
an optical member comprising; a first light condenser portion having a convex lens; a second light condenser portion having an inner surface and an outer surface being curved outward as approaching a light exiting surface, while surrounding the first light condenser portion; a first light guide portion having a tubular configuration surrounding a periphery of the second light condenser portion in an annular configuration; one or more first light-emitting elements disposed at a position corresponding to the first light condenser portion; and one or more second light-emitting elements disposed at a position corresponding to the first light guide portion. - View Dependent Claims (17, 18, 19, 20)
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22. An optical member, comprising:
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a first light condenser portion condensing light incident on a first light incident region; a second light condenser portion surrounding the first light condenser portion, the second light condenser portion condensing a portion of the light that is not incident to the first light condenser portion and outputting from a position facing the first light incident region; and a first light guide portion surrounding the second light condenser portion, and guiding light emitted from the one or more second light-emitting elements by causing total reflection in an interior of the first light guide portion, wherein a full width at half maximum of light exiting from the first light guide portion is larger than a full width at half maximum of light exiting from the first light condenser portion. - View Dependent Claims (23)
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24. An optical member, comprising:
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a first light condenser portion; a second light condenser portion having an inner surface and an outer surface being curved outward as approaching a light exiting surface, the second light condenser portion surrounding the first light condenser portion; and a first light guide portion having a tubular configuration surrounding a periphery of the second light condenser portion in an annular configuration. - View Dependent Claims (25)
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26. A light-emitting circuit, comprising:
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a plurality of first light-emitting elements disposed in a first region; and a plurality of second light-emitting elements surrounding the first region, a color temperature of light emitted from the plurality of second light-emitting elements being different from a color temperature of light emitted from the plurality of first light-emitting elements, a first circuit including the plurality of first light-emitting elements and a second circuit including the plurality of second light-emitting elements are connected in parallel to each other, a number of stages of the plurality of first light-emitting elements connected in series in the first circuit being less than a number of stages of the plurality of second light-emitting elements connected in series in the second circuit. - View Dependent Claims (27, 28)
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Specification