Patent · US Expired

Active thermal control of surfaces by steering heating beam in response to sensed thermal radiation

US5998768A · kind A · utility

112Cited by
7References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 6, 1998
Grant dateDec 7, 1999
Priority date
Expiry dateAug 6, 2018

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG05D23/1919
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

An apparatus and method for controlling the temperature profile of the surface of a medium such as a solid or a liquid. The surface is imaged onto an array of detectors which generate an electronic output indicative of the temperature profile of the surface. A heating beam provided by a laser is scanned across the surface, providing radiation which heats the surface locally in a pattern based upon the detected temperature profile and the desired temperature profile.

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