Micro mirror device with spring and method for the same
US6894824B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2003 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | Oct 2, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/904
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method and apparatus providing a micro-mirror device configured to increase a switching frequency thereof. The micro-mirror device includes a substrate with at least one address electrode positioned over the substrate to provide an electrostatic force and includes at least one support member positioned over the substrate and extending upward above the substrate. The micro-mirror device also includes a mirror and a spring member. The mirror is disposed over the at least one address electrode and coupled to the at least one support member. The mirror is configured to deflect toward the substrate in response to the at least one address electrode applying the electrostatic force to the mirror. The spring member is spaced apart between the substrate and the mirror and coupled to the at least one support member. The spring member is operable to deflect separately from the mirror and toward the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.