Method and device for adjusting eye range by means of displacements of prisms and ocular lenses
US6236504A · kind A · utility
20Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2000 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Jan 13, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B23/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method is designed to adjust the distance between the central axes of two ocular lenses of an optical instrument. The method involves the use of a link mechanism to actuate two movable prisms and the two ocular lenses of the optical instrument to move respectively along a base surface such that the optical axes of effective diameters of the two movable prisms are coaxial with the optical axes of the corresponding ocular lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.