Spectral separation component without a visible ghost image
US9746682B2 · kind B2 · utility
0Cited by
7References
10Claims
0Family size
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Key dates
| Filing date | Nov 28, 2013 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Jun 4, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2003/2826
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A spectral splitting component is provided, having two faces, a planar front face comprising a dichroic treatment and a back face. It is intended to be placed downstream of a convergent objective. The back face is convex and forms a cylindrical surface defined by a generatrix of fixed direction moving perpendicularly along a circular arc comprising two ends, the plane passing through these two ends and parallel to the generatrix of the cylindrical surface forming a dihedral with the plane of the front face, the generatrix of the cylindrical surface being parallel to the edge of the dihedral.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.