Collimation lens module and light source module using the same
US10444467B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2015 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Apr 7, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/0085
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A collimating lens module and a light source module using the same are provided. The collimating lens module includes a first lens, a second lens, a third lens, a fourth lens and a fifth lens. The first lens is configured for receiving light, wherein the first lens is a negative aspheric lens. The second lens is disposed on the first lens, wherein the second lens is a positive lens. The third lens is disposed on the second lens, wherein the third lens is a negative lens. The fourth lens is disposed on the third lens, wherein the fourth lens is a positive lens. The fifth lens is disposed on the fourth lens, wherein the fifth lens is a positive aspheric lens and configured for outputting collimated light. The light source module includes the collimating lens module and a light emitting diode (LED).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.