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US 11,908,980 B2Granted
Light emitting device
AssigneeNichia Corporation
InventorsTadaaki Ikeda, Yukiko Yokote
Life of this patent
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Abstract
A light emitting device includes: a mounting substrate comprising a mounting substrate first surface; a first light emitting element configured to emit light having a first peak wavelength; a second light emitting element configured to emit light having a second peak wavelength longer than the first peak wavelength; a first light-transmissive member; and a first wavelength converting member located on the first light-transmissive member.
Claims22
A light emitting device comprising:
- a mounting substrate comprising a mounting substrate first surface that extends in a first direction and in a second direction;
- a first light emitting element configured to emit light having a first peak wavelength, the first light emitting element comprising:
- a first light emitting element first surface facing the mounting substrate first surface,
- a first light emitting element second surface opposite the first light emitting element first surface,
- a first light emitting element third surface located between the first light emitting element first surface and the first light emitting element second surface,
- a first light emitting element fourth surface opposite the first light emitting element third surface,
- a first light emitting element fifth surface located between the first light emitting element first surface and the first light emitting element second surface and between the first light emitting element third surface and the first light emitting element fourth surface, and
- a first light emitting element sixth surface opposite the first light emitting element fifth surface;
- a second light emitting element configured to emit light having a second peak wavelength longer than the first peak wavelength, the second light emitting element comprising:
- a second light emitting element first surface facing the mounting substrate first surface,
- a second light emitting element second surface opposite the second light emitting element first surface,
- a second light emitting element third surface located between the second light emitting element first surface and the second light emitting element second surface, and facing the first light emitting element third surface,
- a second light emitting element fourth surface opposite the second light emitting element third surface,
- a second light emitting element fifth surface located between the second light emitting element first surface and the second light emitting element second surface and between the second light emitting element third surface and the second light emitting element fourth surface, the second light emitting element fifth surface being located closer to the first light emitting element fifth surface than to the first light emitting element sixth surface, and
- a second light emitting element sixth surface opposite the second light emitting element fifth surface;
- a first light-transmissive member covering at least a portion of each of the first light emitting element second surface, the first light emitting element fourth surface, the first light emitting element fifth surface, the first light emitting element sixth surface, the second light emitting element second surface, the second light emitting element fourth surface, the second light emitting element fifth surface, and the second light emitting element sixth surface;
- and
- a first wavelength converting member located on the first light-transmissive member, and covering the first light emitting element second surface and the second light emitting element second surface,
- wherein the first light emitting element and the second light emitting element are adjacent to each other in the first direction and are aligned in the first direction,
- wherein a width of the mounting substrate in the second direction is greater than a width of the mounting substrate in the first direction,
- wherein a width of the first light emitting element in the second direction is greater than a width of the first light emitting element in the first direction, and
- wherein a width of the second light emitting element in the second direction is greater than a width of the second light emitting element in the first direction.
19 more elements
Dependencies are inferred from the claim text.