CH567244A5CH340774ACH340774ACH567244A5CH 567244 A5CH567244 A5CH 567244A5CH 340774 ACH340774 ACH 340774ACH 340774 ACH340774 ACH 340774ACH 567244 A5CH567244 A5CH 567244A5
Authority
CH
Switzerland
Application number
CH340774A
Original Assignee
Bbc Brown Boveri & Cie
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bbc Brown Boveri & CiefiledCriticalBbc Brown Boveri & Cie
Publication of CH567244A5publicationCriticalpatent/CH567244A5/xx
G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
G02B27/48—Laser speckle optics
G—PHYSICS
G01—MEASURING; TESTING
G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
G01B11/00—Measuring arrangements characterised by the use of optical techniques
G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
G01B11/303—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces using photoelectric detection means
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Optics & Photonics
(AREA)
Investigating Or Analysing Materials By Optical Means
(AREA)
