Telescopic spectacles
US5384607A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1992 |
| Grant date | Jan 24, 1995 |
| Priority date | — |
| Expiry date | Jul 31, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/088
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A pair of telescopic spectacles includes a frame having a top bar and a bottom rim disposed to provide an aperture and a lens having a bore therein disposed in the aperture of the frame. The telescopic spectacles further include a telescope assembly disposed through the bore of the lens at a predetermined convergence and declination angle. The telescope assembly includes a first housing having a first aperture, a first region with a bore therein and a second region having a cavity therein, a second aperture and a first surface. The telescope assembly further includes a lens retainer disposed in the first aperture of the first housing, and an eyepiece assembly disposed in the first region of the first housing. The eyepiece assembly includes a lens housing having a first end with a first aperture and having a second opposing end with a second aperture. A first lens is disposed in the first aperture of the lens housing, a second lens is disposed in the second aperture of the lens housing a predetermined distance from the first lens. The telescope assembly further includes a prism, disposed in the second region of the first housing with a first surface of the prism spaced a predetermin…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.