Limited rotation device having two degrees of freedom
US4364000A · kind A · utility
18Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 6, 1977 |
| Grant date | Dec 14, 1982 |
| Priority date | — |
| Expiry date | Apr 6, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/1821
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device for reciprocally rotating an output element such as a scanning mirror by means of an electric motor employs a two-degree-of-freedom suspension in which the motor armature is constrained by a first torsional suspension and the output element is supported from the armature by an independent second suspension. The resonant frequency of the armature and its suspension is substantially equal to the resonant frequency of the output element and its suspension.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.