Free-form lenticular optical elements and their application to condensers and headlamps
US8419232B2 · kind B2 · utility
10Cited by
151References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2006 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Oct 23, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Some embodiments provide an illumination optical system. The optical system can include a first surface and a second surface. Each of the first and second surfaces can further comprises a multiplicity of corresponding Cartesian-oval lenticulations such that each lenticulation of the first surface focuses a source upon a corresponding lenticulation of the second surface and each lenticulation of the second surface focuses a target upon a corresponding lenticulation of the first surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.