Light emitting device
AssigneeNichia Corporation
InventorToshiaki YAMASHITA
Life of this patent
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Abstract
A laser diode device includes a semiconductor laser element, a transmissive member, and phosphor-containing members. The transmissive member is disposed separately from the semiconductor laser element and includes a plurality of recessed portions on a side opposite to a side in which light from the semiconductor laser element enters and within a region that is irradiated with the light from the semiconductor laser element. The phosphor-containing members are disposed in the plurality of recessed portions. A portion of light enters and passes through the transmissive member between the phosphor-containing members and exits the transmissive member without passing through the phosphor-containing members.
Claims16
A laser diode device comprising:
- a semiconductor laser element;
- a transmissive member disposed separately from the semiconductor laser element and comprising a plurality of recessed portions disposed on a side opposite to a side in which light emitted from the semiconductor laser element enters and within a region that is irradiated with the light emitted from the semiconductor laser element;
- and
- phosphor-containing members disposed in the plurality of recessed portions,
- wherein a portion of the light emitted from the semiconductor laser element enters and passes through the transmissive member between the phosphor-containing members and exits the transmissive member without passing through the phosphor-containing members.
A light-emitting device comprising:
- a light-emitting element;
- a transmissive member disposed separately from the light-emitting element and comprising a plurality of protruding portions on a side opposite to a side in which light emitted from the light-emitting element enters and within a region that is irradiated with the light emitted from the light-emitting element;
- and
- phosphor-containing members disposed between the plurality of protruding portions,
- wherein a portion of the light emitted from the light-emitting element enters and passes through the transmissive member between the phosphor-containing members and exits the transmissive member without passing through the phosphor-containing members.
A laser diode device comprising:
- a semiconductor laser element;
- a cap covering the semiconductor laser element and comprising a window portion;
- a transmissive member disposed in the window portion and separately from the semiconductor laser element, the transmissive member comprising a plurality of recessed portions on a side opposite to a side in which light emitted from the semiconductor laser element enters and within a region that is irradiated with the light emitted from the semiconductor laser element;
- and
- phosphor-containing members provided in the plurality of recessed portions,
- wherein a portion of the light emitted from the semiconductor laser element enters and passes through the transmissive member between the phosphor-containing members and exits the transmissive member without passing through the phosphor-containing members.
Dependencies are inferred from the claim text.