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US 2021/0231302 A1Published application
Light source device
AssigneeNichia Corporation
InventorsTsuyoshi OKAHISA, Norimasa YOSHIDA
Life of this patent
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Abstract
A light source device for irradiating two or more irradiation regions with light includes a plurality of light emitting parts, an optical lens, and a light converging member. The optical lens includes the first surface including a plurality of incident regions and the second surface including a plurality of emission regions. The light converging member includes a plurality of light entering portions and a plurality of light emission portions. The light converging member is located between the light emitting parts and the optical lens.
Claims30
A light source device comprising:
- a plurality of light emitting parts, each having an upper surface that comprises a light emitting surface at the upper surface;
- an optical lens located above the light emitting surfaces of the light emitting parts, the optical lens having:
- a first surface located on a light emitting surface side of the light emitting part, the first surface comprising a plurality of incident regions, each corresponding to a respective one of the plurality of light emitting parts such that a light emitted from each of the light emitting parts is incident on a respective one of the plurality of incident regions, and
- a second surface opposite to the first surface, the second surface comprising a plurality of emission regions, each corresponding to a respective one of the plurality of incident regions;
- and
- a light converging member located between the light emitting parts and the optical lens, the light converging member comprising:
- a plurality of light entering portions, each corresponding to a respective one of a plurality of light emitting parts and covering the light emitting surface of the respective one of the light emitting parts, and
- a plurality of light emission portions, each corresponding to a respective one of the plurality of light entering portions and having an area smaller than an area of the respective one of the plurality of light entering portions, such that lights emitted from two or more of the light emitting parts are irradiated to two or more corresponding irradiation regions.
5 more elements
A light source device comprising:
- a plurality of light emitting parts, each having a light emitting surface on an upper surface thereof;
- an optical lens located above the light emitting surfaces of the light emitting parts, the optical lens having:
- a first surface comprising a first incident region, and
- a second surface comprising a first emission region;
- and
- a light converging member located between the light emitting parts and the optical lens, the light converging member comprising:
- a plurality of light entering portions, each corresponding to a respective one of the plurality of light emitting parts and covering the light emitting surface of the respective one of the light emitting parts, and
- a plurality of light emission portions, each corresponding to a respective one of the plurality of light entering portions and having an area smaller than an area of the respective one of the plurality of light entering portions, such that lights emitted from two or more of the light emitting parts are irradiated to two or more corresponding irradiation regions.
5 more elements
Dependencies are inferred from the claim text.