Optical lens, light-emitting device and backlight module
US11280473B2 · kind B2 · utility
0Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2020 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Jul 31, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An optical lens, a light-emitting device and a backlight module are provided. The optical lens is used for adjusting light emitted from a light-emitting unit. The optical lens includes a light-incident surface and a light-emitting surface. The light-incident surface encloses a space for accommodating the light-emitting unit. The light-emitting surface is used for receiving and emitting light entering the optical lens via the light-incident surface. The optical lens has an optical axis, with respect to which the light-incident surface is asymmetric.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.