Patent · US Expired

Three-dimensional measurement apparatus

US6233049A · kind A · utility

17Cited by
13References
30Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 22, 1999
Grant dateMay 15, 2001
Priority date
Expiry dateMar 22, 2019

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01B11/2518
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A three-dimensional measurement device employs a slit ray projection technique to optically determine a three-dimensional image. The device offers a choice in operating modes between high-speed measurement, high-resolution measurement and large dynamic range in the depth direction, to accommodate various situations. The different modes of operation are achieved by selectively modifying one or more of the scanning speed of a projected reference beam, the readout speed of a photosensor, the line width or line spacing of the photosensor, and the number of lines per image frame.

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