Device and method for determining the amertopia of an optical system
US7673992B2 · kind B2 · utility
1Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 25, 2004 |
| Grant date | Mar 9, 2010 |
| Priority date | — |
| Expiry date | Aug 4, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/14
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device and method for determining the defective vision of an optical system include a controllable optical element. The objective and subjective determination of the correction values are more greatly combined in that a measuring and controlling device forms a control loop with the controllable optical element, and the optical characteristics of the controllable element can be changed manually.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.