Optical lens and illuminating device incorporating the same
US7988328B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2008 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Jul 7, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical lens (10) includes an array of lens units (11). Each lens unit includes a main body (101), a light diverging portion (112) and a light converging portion (114). The main body includes a light incident surface (110) and a light emitting surface (112) opposite to the light incident surface. The light diverging portion is used to expand a light field along an x-direction. The light converging portion is used to compress a light field along a y-direction. In specific embodiments, the light diverging portion and the light converging portion are respectively formed on the light incident surface and the light emitting surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.