Patent · US Active

Optical micromotor, micropump using same and microvalve using same

US7444817B2 · kind B2 · utility

3Cited by
10References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 10, 2004
Grant dateNov 4, 2008
Priority date—
Expiry dateJan 16, 2027

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02N11/006
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An optical micromotor having a rotor the rotation whereof can be controlled flexibly and freely through simple arrangement, and a micropump that uses this micromotor. The optical micromotor and the micropump have a rotor (15) that rotates about a central axis. The rotor (15) has an optical trap (bead) (2), which is trapped by a light beam (4), provided at least at one location thereon. When the optical trap (2) is irradiated with the laser beam (4), the rotor is held at a prescribed position together with the optical trap (2). When the laser beam (4) is moved or changed over, the rotor (15) rotates about the central axis together with the optical trap (2).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.