Optical wavefront sensing system
US4399356A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1981 |
| Grant date | Aug 16, 1983 |
| Priority date | — |
| Expiry date | Jan 19, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J9/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved light waveform image sensing system is described. The image wavefront is focused on an image divider and divided into "n"-segments ("n">1) whereupon the "n"-segements are focused on "n"-detector arrays and detected by "S"-detectors ("S">>1) in the "n"-detector arrays. The "S"-detectors may comprise any of the well-known photosensitive elements. A particular useful detector is an electron-beam mode device described in detail herein. The detected signals are combined to produce an electrical signal proportional to the tilt in the wavefront which signal may be used to deform a deformable mirror thereby correcting the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.