Light controlling device and process for controlling light transmission
US5296974A · kind A · utility
66Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1992 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Jul 14, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/25
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light controlling device comprising a pair of substrates, a viscoelastic or elastic dispersing medium containing fine particles aligned in an approximately constant direction, and a way for applying a shear stress to the viscoelastic or elastic material. The device can control light transmission in non-stage by applying a shear stress to the viscoelastic or elastic material to incline the direction of the alignment of particles with respect to the incident light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.