Imaging optics designed by the simultaneous multiple surface method
US8035898B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2009 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | Nov 27, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
One embodiment of a method of calculating an optical surface comprises calculating a meridional optical line of the surface. A ray is selected that passes a known point defining an end of a part of the optical line already calculated. The optical line is extrapolated from the known point to meet the ray using a polynomial with at least one degree of freedom. The polynomial is adjusted as necessary so that the selected ray is deflected at the extrapolated optical line to a desired target point. The polynomial is added to the optical line up to the point where the selected ray is deflected. The point where the selected ray is deflected is used as the known point in a repetition of those steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.