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US 8,796,910 B2Granted
Halogen lamp comprising bulb and structure to prevent filament parts from contracting each other
AssigneeLG Electronics Inc.
InventorsJae kwan Jung, Sungho Choi, Jaeho Cho
Life of this patent
Estimating the term…
Abstract
Embodiments provide a halogen lamp configured to minimize a short circuit of a filament. Provided is a halogen lamp that includes a support part passing through a bulb and disposed in the bulb. A filament is hung on the support part. Thus, a short circuit of the filament is minimized.
Claims20
A lamp, comprising:
- a bulb having an enclosed space with a sealed base at a bottom of the bulb with connectors provided thereon for connection to an external power source;
- a support bar that extends in a first direction a first prescribed distance across the enclosed space;
- and
- a filament having a prescribed length, wherein a portion of the filament wraps around an outer surface of the support bar, the filament comprising a first filament part and a second filament part, ends of the first and second filament parts being electrically coupled to the connectors near the bottom of the bulb, wherein the first and second filament parts are spaced apart from each other in a direction parallel to the first direction of the support bar, and the first and second filament parts are spaced apart from each other in a second direction perpendicular to the first direction,
- wherein the first and second filament parts define a second prescribed distance near the connectors in the first direction and a third prescribed distance near the connectors in the second direction, and
- wherein the second prescribed distance is less than the first prescribed distance and is larger than the third prescribed distance, and a diameter of the support bar is less than the second prescribed distance and is larger than the third prescribed distance.
3 more elements
A lamp, comprising:
- a bulb having an enclosed space with a sealed base at a bottom of the bulb with connectors provided thereon for connection to an external power source;
- a support bar that extends in a first prescribed distance across the enclosed space in a first direction;
- a filament having a prescribed length, wherein a portion of the filament wraps around an outer surface of the support bar, the filament comprising a first filament part and a second filament part, ends of the first and second filament parts being electrically coupled to the connectors near the bottom of the bulb;
- and
- a space bar provided between the support bar and the ends of the first and second filament parts, wherein the space bar extends in a second direction perpendicular to the first direction,
- wherein the space bar prevents the first and second filament parts from contacting each other,
- wherein the first and second filament parts are spaced apart from each other in a direction parallel to the first direction of the support bar, and the first and second filament parts are spaced apart from each other in the second direction,
- wherein the first and second filament parts define a second prescribed distance near the connectors in the first direction, and a third prescribed distance near the connectors in the second direction, and
- wherein the second prescribed distance is less than the first prescribed distance and is larger than the third prescribed distance, and a diameter of the support bar is less than the second prescribed distance and is larger than the third prescribed distance.
6 more elements
A lamp, comprising:
- a bulb having an outer surface to define an inner space with a sealed base at a bottom of the bulb;
- two leads provided at the bottom of the bulb and having portions exposed for connection to an external power source, the portions being spaced from each other by a first prescribed distance;
- a support bar having a prescribed length such that the support bar extends in as first direction across the inner space of the bulb from a portion of the outer surface of the bulb to an opposite portion of the outer surface of the bulb, wherein the first prescribed distance of the two leads is less than the prescribed length of the support bar;
- and
- a filament having a portion wrapped around an outer surface of the support bar, wherein the filament comprises a first filament part and a second filament part,
- wherein ends of the first and second filament parts are electrically coupled to the two leads,
- wherein the first and second filament parts are spaced apart from each other in a direction parallel to the first direction of the support bar, and the first and second filament parts are spaced apart from each other in a second direction perpendicular to the first direction,
- wherein the first and second filament parts define a second prescribed distance near the two leads in the first direction, a third prescribed distance near the two leads in the second direction, a fourth prescribed distance near the support bar in the first direction and a fifth prescribed distance near the support bar in the second direction, and
- wherein the second prescribed distance is larger than the fourth prescribed distance, and the fifth prescribed distance is larger than the third prescribed distance.
6 more elements
Dependencies are inferred from the claim text.