Method and apparatus for translating a spatial light modulator to provide dithering
US6917462B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2003 |
| Grant date | Jul 12, 2005 |
| Priority date | — |
| Expiry date | Jun 29, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B27/68
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for translating a spatial light modulator (22) to provide dithering comprises the steps of: providing a support (11) have a high degree of flexibility; rigidly attaching an outer portion (14) of the support to a nonmoving base; attaching an inner web (12) of the support to the outer portion by means of flexible members (16); wherein the support, the outer portion, the inner web, and the flexible members are located in a first plane; wherein the flexible members allows motion of the inner web in only one dimension of the first plane; attaching a piezoelectric device (18) to a first end of the inner web; energizing the piezoelectric device to move the inner web in a positive direction in the one dimension; attaching a spring (20) to a second end of the inner web; and wherein the spring moves the inner web in a negative direction in the one dimension when the piezoelectric device is deactivated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.