Compound lens for use with illumination sources in optical systems
US10336025B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 13, 2016 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | Jun 18, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/253
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A compound lens and a related method of manufacture are provided. The compound lens includes a first lens element and a second lens element such that a light emitting surface of the first lens element is integrally joined to a light receiving surface of the second lens element, the first and second lens element being in optical alignment with each other. The first and second lens element are molded from optical grade silicone and can achieve complex illumination objectives not possible with single lens constructions. The method of manufacture includes injecting a silicone resin molding compound into a mold cavity having the desired shape of the compound lens. The method of manufacture can include over-molding a lens holding member onto the compound lens and adding electro-optically active particles to a surface of the compound lens or to the silicone resin forming the compound lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.