Beam splitter assembly and interferometer having a beam splitter assembly
US6369951B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 24, 2000 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Feb 24, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/145
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A beam splitter assembly and an interferometer using the beam splitter assembly are described. The beam splitter assembly splits an incoming beam of rays that impinges thereon into at least one first outgoing beam and at least one second outgoing beam parallel thereto. To accomplish this, the beam splitter assembly includes a beam splitter element and a compensating element. The beam splitter element includes a transparent plate having two parallel boundary surfaces. The compensating element is arranged with respect to the beam splitter element so that the two outgoing beams propagate parallel to one another, and have essentially traveled the same optical path lengths in the beam splitter element as in the compensating element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.