LED lamp and lighting device including the same
US10337694B2 · kind B2 · utility
0Cited by
3References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 15, 2018 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | Oct 15, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An LED lamp includes a plurality of LEDs and a pillar that is defined by a polygonal cross-sectional shape and includes a plurality of lateral surfaces on which the plurality of LEDs are disposed. A pillar radius ratio is set to fall in a range of greater than or equal to 3.73% and less than or equal to 18.25%. The pillar radius ratio is defined as a dimensional ratio of a pillar radius to a radius of an opening of a reflector made in shape of a bowl. The pillar radius is defined as a distance from a center point of the pillar to each of the plurality of lateral surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.