Adaptive sequential wavefront sensor and its applications
US7815310B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2007 |
| Grant date | Oct 19, 2010 |
| Priority date | — |
| Expiry date | Jul 6, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J1/0437
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An adaptive sequential wavefront sensor comprises a sub-wavefront focusing lens, a sequential wavefront scanning device, a variable aperture, a position sensing device, and means for coordinating the operation of the wavefront scanning device, the variable aperture and the position sensing device. An adaptive sequential wavefront sensing method comprises the steps of sequentially projecting portions of a wavefront as image spots on a position sensing device, determining the deflection of each received image spot from a reference point on the position sensitive device, and coordinating the operation of a variable aperture with the operation the sequential projection and image position sensing. The adaptive sequential wavefront sensor has high speed, large dynamic range and variable spatial resolution, and hence can be used for real time measurement of the dynamics of eye accommodation. In addition, other functions or measurements can be combined with the adaptive sequential wavefront sensor to provide additional advantages. These additional function or measurement modules include a micro display based internal fixation and visual acuity projection module, a corneal topography module…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.