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US 12,345,381 B2Granted
Bulb-type light source
AssigneeSeoul Semiconductor Co., Ltd.
InventorsJae Hyun Park, Seong Jin Lee, Jong Kook Lee
Life of this patent
Estimating the term…
Abstract
A lighting device includes a substrate having a plurality of flat portions and a non-flat portion disposed between the flat portions, a plurality of light emitting sources disposed on the substrate, a fluorescent substrate layer covering one or more light emitting sources and converting a wavelength of a light from the light emitting source, and a connection line disposed on the substrate and electrically connecting the light emitting sources adjacent to each other between the adjacent light emitting sources. The substrate has a first end and a second end are arranged at different distance from a central axis.
Claims20
A light device, comprising:
- a cover configured to transmit light;
- a light emitter disposed in the cover and including a first end, a second end, and an intermediate region disposed between the first end and the second end;
- and
- a power board configured to supply power to the light emitter,
- wherein the light emitter comprising:
- light sources including a first light source and a second light source that are closest, among the light sources, to the first end and the second end, respectively, each of the light sources including a first contact electrode and a second contact electrode;
- a first electrode pad electrically connected to at least one of the first contact electrodes of the light sources;
- a second electrode pad electrically connected to at least one of the second contact electrodes of the light sources;
- a wavelength converter configured to convert a wavelength of light emitted from at least one of the light sources, and
- a connection line disposed on an insulation layer and electrically connected to the first electrode pad or the second electrode pad that is electrically connected to the light sources,
- wherein a first distance measured as a shortest distance between the first light source and a first region of the cover is different from a second distance measured as a shortest distance between the second light source and a second region of the cover.
8 more elements
A light device, comprising:
- a light emitter disposed in a cover and including a first end, a second end, and an intermediate region between the first end and the second end;
- and
- a power board configured to supply power to the light emitter,
- wherein the light emitter comprises:
- light sources including a first light source and a second light source that are closest, among the light sources, to the first end and the second end,
- respectively, each of the light sources including a first contact electrode and a second contact electrode;
- a first electrode pad electrically connected to at least one of the first contact electrodes of the light sources;
- a second electrode pad electrically connected to at least one of the second contact electrodes of the light sources;
- a wavelength converter configured to convert a wavelength of light emitted from at least one of the light sources, and
- a connection line disposed on an insulation layer and electrically connected to the first electrode pad or the second electrode pad that is electrically connected to the light sources,
- wherein a first distance measured as a shortest distance between the first light source and a first region of the cover is greater than a second distance measured as a shortest distance between the second light source and a second region of the cover.
8 more elements
A light device, comprising:
- a light emitter disposed in a cover and including a first end, a second end, and an intermediate region between the first end and the second end;
- and
- a power board configured to supply power to the light emitter,
- wherein the light emitter comprising:
- light sources including a first light source disposed in the intermediate region and a second light source that is closest, among the light sources, to the second end, each of the light sources including a first contact electrode and a second contact electrode;
- a first electrode pad electrically connected to at least one of the first contact electrodes of the light sources;
- a second electrode pad electrically connected to at least one of the second contact electrodes of the light sources;
- a wavelength converter configured to convert a wavelength of light emitted from at least one of the light sources, and
- a connection line disposed on an insulation layer and electrically connected to the first electrode pad or the second electrode pad that is electrically connected to the light sources,
- wherein a first distance measured as a shortest distance between the first light source and a first region of the cover is different from a second distance measured as a shortest distance between the second light source and a second region of the cover.
7 more elements
Dependencies are inferred from the claim text.