SE8801704L - DEVICE FOR MEASURING DEVICES USING LASER RADIATIONS - Google Patents

DEVICE FOR MEASURING DEVICES USING LASER RADIATIONS

Info

Publication number
SE8801704L
SE8801704L SE8801704A SE8801704A SE8801704L SE 8801704 L SE8801704 L SE 8801704L SE 8801704 A SE8801704 A SE 8801704A SE 8801704 A SE8801704 A SE 8801704A SE 8801704 L SE8801704 L SE 8801704L
Authority
SE
Sweden
Prior art keywords
array
lens
light
objective
measurement
Prior art date
Application number
SE8801704A
Other languages
Swedish (sv)
Other versions
SE8801704D0 (en
SE461116B (en
Inventor
P Nyqvist
Original Assignee
Limab Laser Instrumentmek
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 Limab Laser Instrumentmek filed Critical Limab Laser Instrumentmek
Priority to SE8801704A priority Critical patent/SE461116B/en
Publication of SE8801704D0 publication Critical patent/SE8801704D0/en
Publication of SE8801704L publication Critical patent/SE8801704L/en
Publication of SE461116B publication Critical patent/SE461116B/en

Links

Classifications

    • 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
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C3/00—Measuring distances in line of sight; Optical rangefinders
    • G01C3/02—Details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

Arrangement for measurement arrangements with a laser 3 for emitting laser light on a path 5. A camera 4 is positioned so as to receive light from measurement surfaces 8-10 on measurement objects 7 positioned along the path within a longitudinal region of the same. Behind an objective 12 in the camera, there is an array 26 of light-sensitive elements which is elongate and has a longitudinal direction and a transverse direction. Positioned between the objective 12 and the array 26 is a lens 27 curved in one plane, preferably a cylindrical lens, the axis of curvature of which extends in the longitudinal direction of the array. The objective 12 is positioned in such a manner that its focal plane is located in the main in the surface of the array and the focal plane of the lens curved in one plane is located at a distance from the surface of the array, preferably in front of the same. The light which comes from that part of the measurement surface 8-10 illuminated by the laser light and which passes through the objective is spread by the lens 27 in the transverse direction of the array into a linear form, while the light focused towards the surface of the array 26 is not spread in the longitudinal direction of the array, along which the axis of curvature of the lens extends. <IMAGE>
SE8801704A 1988-05-05 1988-05-05 Arrangement for measurement arrangements using laser beams SE461116B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8801704A SE461116B (en) 1988-05-05 1988-05-05 Arrangement for measurement arrangements using laser beams

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8801704A SE461116B (en) 1988-05-05 1988-05-05 Arrangement for measurement arrangements using laser beams

Publications (3)

Publication Number Publication Date
SE8801704D0 SE8801704D0 (en) 1988-05-05
SE8801704L true SE8801704L (en) 1989-11-06
SE461116B SE461116B (en) 1990-01-08

Family

ID=20372245

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8801704A SE461116B (en) 1988-05-05 1988-05-05 Arrangement for measurement arrangements using laser beams

Country Status (1)

Country Link
SE (1) SE461116B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104859562A (en) * 2015-05-27 2015-08-26 北京信息科技大学 Method and device for detecting barriers behind vehicle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9800008D0 (en) * 1998-01-02 1998-01-02 Limab Laser Instrumentmek Method and device for measuring workpiece widths under severe environmental conditions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104859562A (en) * 2015-05-27 2015-08-26 北京信息科技大学 Method and device for detecting barriers behind vehicle

Also Published As

Publication number Publication date
SE8801704D0 (en) 1988-05-05
SE461116B (en) 1990-01-08

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