Dove prism for convergent light paths
US4514050A · kind A · utility
16Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 22, 1982 |
| Grant date | Apr 30, 1985 |
| Priority date | — |
| Expiry date | Jul 22, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/642
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus for correcting aberrations in prisms in convergent light paths. The prism has a transparent entrance and exit face which are connected by a hypotenuse surface. The effect of adding a wedge-shaped addition is made on one of the entrance or exit faces to create a compensating dispersive spectrum to compensate for lateral chromatic aberration. The hypotenuse surface is formed as a spherically convex surface to produce a compensating astigmatic aberration to compensate for the astigmatic aberration caused by the entrance and exit faces of the prism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.