Loupe hinge for magnification viewer
US6667832B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2002 |
| Grant date | Dec 23, 2003 |
| Priority date | — |
| Expiry date | Jun 11, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C11/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A magnification viewer includes magnification loupes, which may be attached to the bridge of a pair of spectacles by a hinge/bridge mount. A main hinge tab is pivotally connected to mount, whereby the magnification loupes may be raised and lowered from the field of vision in front of the spectacles as desired. A hinge tab saddle slidably mounted to the main hinge tab permits adjustment of the loupes along the longitudinal length of the main hinge tab to thereby adjust the distance between the lenses of the spectacles and the loupes. Loupes are suspended by pylons from a pair of loupe mount bars and are pivotally adjustable about axes through the pylons to vary the convergence angle of the pair of loupes. Mount bars are adjustable via a thumbscrew attached to the hinge tab saddle, whereby the lateral spacing of the loupes may be varied to thereby accommodate a range of interpupillary distances. Magnification viewer may further include a light mount adapter provided on hinge tab saddle for attaching a light. A pivotal attachment between light mount adapter and light permits adjustment of light to illuminate a desired area within the field of vision of magnification viewer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.