Lighting device for street lamp
US9062842B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2012 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Jul 2, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/72
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a lighting device for a street lamp, of which a structure is improved such that the diffusion degree of light may be effectively controlled by improving the directivity of a luminous element. To this end, the lighting device for a street lamp includes: a base member which is formed at an upper side of a street lamp body arranged above a ground surface; a plurality of luminous element units, which are comprised of at least one luminous element, and are arranged on the bottom surface of the base member; and a plurality of reflection units, which are arranged to be adjacent to the luminous element units, and are arranged mutually isolated from each other by a predetermined distance on the bottom surface of the base member to diffuse light radiated from the luminous element units in multiple directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.