Adjustable mount for cylindrical lens with torque applied directly to lens
US5220460A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1991 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | Oct 31, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/023
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens mount for positioning a cylindrical lens in x, y, z and .theta..sub.x, .theta..sub.y, .theta..sub.z directional degrees of freedom includes a carrier with a lens-receiving cavity and a spring acting in the cavity adjacent one corner of the lens to apply a biasing torque in the .theta..sub.z direction directly on the lens. The lens is positioned with a planar x-y surface against a corresponding planar x-y surface of the cavity. A plate-like retainer wraps around an opposite curved surface of the lens to hold it in the cavity. Lens adjustments in the magnification x or y axis and .theta..sub.z directions are made against the applied bias by locating screws which pass through the carrier and contact the lens. The .theta..sub.z bias loads opposite lens edges against the .theta..sub.z locating screw and a guide pin, during translational adjustment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.