Method and apparatus for particle manipulation, and measuring apparatus utilizing the same
US5495105A · kind A · utility
64Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1995 |
| Grant date | Feb 27, 1996 |
| Priority date | — |
| Expiry date | Jan 19, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N30/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A flow of liquid containing floating fine particles is formed in a flow path, thereby causing successive movement of the particles. A light beam having intensity distribution from a laser is focused on the liquid flow, whereby the particle is optically trapped at the irradiating position, thus being stopped against the liquid flow or being slowed by a braking force. This phenomenon is utilized in controlling the spacing of the particles in the flow or in separating the particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.