Illuminated magnifying lens assembly
US5642234A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1995 |
| Grant date | Jun 24, 1997 |
| Priority date | — |
| Expiry date | Oct 30, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B25/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An illuminated magnifying lens assembly includes a magnifying lens, a storage case having upper and lower portions, a support frame disposed about and supporting the lens, and a retainer element and fastener secured to the case and pivotally connecting the frame to the case such that the frame and lens therewith may be pivoted relative to the case in a circular arc from a stored position between the upper and lower portions of the case to a plurality of deployed viewing positions wherein the frame is angularly displaced from the case and the lens is exposed. The lens assembly also includes an electrical light source disposed within the frame for emitting and projecting light through a small hole in the frame and onto an object being magnified by the lens as observed through the lens. The light source is activated by pivoting the frame in a predetermined direction from the stored position to one of the deployed positions. The light source include a lamp, batteries, and a switch mechanism. The switch mechanism includes a contact element movable between open and closed positions, and a cam element disposed about the retainer element and acting on the contact element to move it from th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.