Structure for collimating a light source
US11774774B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2021 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Jan 18, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/423
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A structure can be provided for collimating light from a light source (e.g., vertical cavity surface emitting diodes). The structure can include at least one light source, a pit formed at an output of the at least one light source and a microbead formed in the pit. Microbeads can function as a lens to collimate light emitting from the at least one light source. The structure can provide by forming an array of VCSELs on a substrate, forming a pit in front of each VCSEL of the array of VCSELs, and assembling a microbead in each pit formed in front of each VCSEL. The microbeads can thereby function as lenses to collimate light emitted from the VCSELs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.