Microscopic device and microscopic method for the three-dimensional localization of point-like objects
US9488824B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2012 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Feb 26, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A microscopic device provides three-dimensional localization of point-like objects and includes two imaging optics, each configured to image a same point-like object located in an object space into two separate image spaces as a focused light distribution. Two detector units are respectively associated with the imaging optics and configured to capture an analyzable light spot in detection points of a detection surface disposed in the respective image space. Each imaging optics includes an optical device that orients the focused light distributions obliquely to a detection axis such that, taking into account the detection point correspondence, the two light spots shift in opposite directions based on a z-position of the point-like object. An evaluation unit brings the detection points of the two detection surfaces into mutual pairwise correspondence and analyzes the two light spots so as to ascertain a lateral x-y position and an axial z-position of the point-like object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.