Auxiliary lens assembly with spring-loaded attachment to primary lens assembly
US6969170B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Aug 17, 2004 |
| Grant date | Nov 29, 2005 |
| Priority date | — |
| Expiry date | Sep 2, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C9/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An eyewear assembly comprises a primary lens assembly that includes a primary frame that secures a pair of primary lenses in position relative to one another and a pair of primary extensions, each positioned on an outer periphery of the primary frame. Each of a pair of arms, is connected to one of the primary extensions by a hinge. An auxiliary lens assembly includes an auxiliary frame that secures a pair of auxiliary lenses in position relative to one another and a pair of auxiliary extensions, each positioned on an outer periphery of the auxiliary frame. A lug is carried on each of the primary extensions and moveable on and relative to the extension, each lug adapted to receive a portion of one of the pair of auxiliary extensions, wherein the auxiliary lens assembly is removably secured to the primary lens assembly and the auxiliary lens assembly moves with the lugs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.