Pulse width modulation driver for electroactive lens
US7986178B2 · kind B2 · utility
9Cited by
8References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 9, 2008 |
| Grant date | Jul 26, 2011 |
| Priority date | — |
| Expiry date | Jun 10, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/294
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electroactive lens driver generates a variable root-mean-square drive voltage for controlling an electroactive lens by controlling the duty cycle of a modified square wave.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.