Patent · US Expired

Scanning probe microscope having a single viewing device for on-axis and oblique optical views

US5877891A · kind A · utility

15Cited by
52References
22Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 21, 1995
Grant dateMar 2, 1999
Priority date
Expiry dateApr 21, 2015

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S977/874
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An optical system for a scanning probe microscope provides both an optical on-axis view and an optical oblique view of the sample by means of two optical paths each providing an image to a CCD camera via an auto-zoom lens. A shutter alternately blocks the image of either view from reaching the auto-zoom lens. The CCD camera provides the optical image to a video display which also displays the scanning probe image, thus eliminating the need for eyepieces and allowing easy viewing of both the optical and scanning probe images simultaneously.

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