Wavelength selection device having a diffraction grating mounted on a torsion member
US4867532A · kind A · utility
8Cited by
6References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 12, 1987 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Jun 12, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The wavelength selection device comprises a substrate (1); and a deflectable wavelength selection member constituted by a diffraction grating (10) provided by a torsion member (6) mounted to the substrate (1). A pair of electrode (4,5) are responsive to a control current to cause the torsion member (6) to deflect whereby radiation centered on a predetermined wavelength is selected from radiation having a number of wavelengths impinging on the selection member (10) by setting the selection member (10) at a predetermined angle to the incoming radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.