Optical deflection element
US6385355B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2000 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Mar 3, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/295
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention uses a single substrate to provide a small-size optical waveguide element that requires no optical axis adjustments, can be driven at a low voltage, is excellent in light utilization efficiency, and can rapidly two-dimensionally deflect a light beam. A right-triangle upper electrode and a rectangular transparent upper electrode are formed on top of a thin-film optical waveguide formed on a conductive substrate to serve as a lower electrode, and an emission right-angled prism is secured on top of the transparent upper electrode. A voltage is applied between the upper electrode and the conductive substrate, and between the transparent upper electrode and the conductive substrate. A horizontal deflection is performed upon application of a voltage to the upper electrode and a vertical deflection is performed upon application of a voltage to the transparent upper electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.