Multipurpose eyeglass device
US7175275B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 2004 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Dec 20, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2200/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A pair of spectacles includes a main frame having a magnetic bridge piece. An auxiliary inner frame is secured by a magnetic member to the bridge piece and an outer auxiliary lens is similarly secured by a magnet to the bridge piece and at lateral locations onto edges of the main frame. The auxiliary outer lens is secured by a magnetic button which is inserted through an aperture in the outer lens and has a magnetic member an a head which is sized to overly the aperture. The magnetic member embedded in the button attracts the magnetic bridge piece thereby attaching the button to the main frame, the head overlies the aperture and secures the outer frame to the main frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.