Back to results
US 12,038,141 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 lighting device, comprising:
- a cover configured to transmit light;
- a light emitter disposed in the cover and including a first end, a second end, and a groove region, the light emitter comprising:
- light sources, each of the light sources including a first contact electrode and a second contact electrode;
- a first electrode pad electrically connected to first contact electrodes of the light sources:
- a second electrode pad electrically connected to 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,
- a power board configured to supply power to the light emitter, and
- a fixer connected to the light emitter,
- wherein two of the light sources are configured to emit light with orientation angles defining corresponding light emission areas that overlap with each other in an overlapping region, and
- wherein a distance from the fixer to the overlapping region is smaller than a distance from the fixer to the cover.
8 more elements
A lighting device, comprising:
- a light emitter disposed in a cover and including a first end, a second end, and a groove region, the light emitter comprising:
- light sources configured to emit light, each of the light sources including a first contact electrode and a second contact electrode;
- a first electrode pad electrically connected to first contact electrode of the light sources;
- a second electrode pad electrically connected to 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 connect to the first electrode pad or the second electrode pad that is electrically connected to the at least one of the light sources,
- a power board configured to supply power to the light emitter, and
- a fixer connected to the light emitter and located at a position through which a central axis passes,
- wherein a first distance between the central axis and the first end of the light emitter is smaller than a second distance between the central axis and a region of the light emitter that is between the first end and the second end.
6 more elements
A lighting device, comprising:
- a light emitter disposed in a cover and including a first end, a second end, and a groove region, the light emitter comprising:
- light sources configured to emit light, each of the light sources including a first contact electrode and a second contact electrode;
- a first electrode pad electrically connected to first contact electrode of the light sources;
- a second electrode pad electrically connected to 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 electrically connected to the light sources,
- a power board configured to supply power to the light emitter, and
- a fixer connected to the light emitter and configured to allow a central axis to pass through the fixer,
- wherein a first distance between the central axis and the first end of the light emitter is different from a second distance between the central axis and the second end of the light emitter.
6 more elements
Dependencies are inferred from the claim text.