Reflective optical objective
US9563044B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2013 |
| Grant date | Feb 7, 2017 |
| Priority date | — |
| Expiry date | Jul 15, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B23/2476
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to a reflective optical objective (1) comprising: —a first reflecting element (3) including a front surface (3a) and a hack surface (3b), the front surface (3a) including a convex reflecting surface (11); and —a second reflecting element (5) including a concave reflecting surface (13) facing the convex reflecting surface (11) of the first reflecting element (3), the second reflecting element (5) including a transmissive section (7) permitting electromagnetic radiation to pass through the concave reflecting surface (13) of the second reflecting element (5) to the first reflecting element (3). The reflective optical objective (1) is characterized in that the reflective optical objective (1) includes a carrier material (9) embedding at least the front surface (3a) of the first reflecting element (3) and defining the distance (d) between the first (3) and second (5) reflecting elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.