Wavefront sensor for objective measurement of an optical system and associated methods
US6578963B2 · kind B2 · utility
47Cited by
113References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 19, 2001 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Aug 31, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J9/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A wavefront sensor includes an afocal relay stage for magnifying an incoming wavefront reflected from a source plane. In an exemplary application, a retina of an eye reflects an impinging light beam thereon to form a series of wavefronts. A lenslet array is positioned at a reference plane of the afocal relay stage to receive the magnified wavefront. Further downstream is positioned a means for imaging and demagnifying a focal plane image of the lenslet array at a final image plane. This demagnified image then serves as input to an analyzer, such as a charge-coupled-device (CCD) camera.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.