Auxiliary lens assembly with improved attachment to primary lens assembly
US7040749B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 2004 |
| Grant date | May 9, 2006 |
| Priority date | — |
| Expiry date | Jul 30, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2200/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A primary assembly includes a primary frame that secures a pair of primary lenses in position relative to one another. A primary extension is located on the outer periphery of each end of the primary frame and has an aperture formed therein extending generally parallel to the primary lenses. A pair of arms is connected to each one of the primary extensions by a hinge. An auxiliary assembly includes an auxiliary frame that secures a pair of auxiliary lenses in position relative to one another. A pair of auxiliary extensions is positioned on each end of the outer periphery of the auxiliary frame. The auxiliary extensions are adapted to be received in the apertures in the primary extensions, wherein the auxiliary assembly is removably secured to the primary assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.