SE8801704D0 - DEVICE FOR METANE DEVICES USING LASER RADIATIONS - Google Patents
DEVICE FOR METANE DEVICES USING LASER RADIATIONSInfo
- Publication number
- SE8801704D0 SE8801704D0 SE8801704A SE8801704A SE8801704D0 SE 8801704 D0 SE8801704 D0 SE 8801704D0 SE 8801704 A SE8801704 A SE 8801704A SE 8801704 A SE8801704 A SE 8801704A SE 8801704 D0 SE8801704 D0 SE 8801704D0
- Authority
- SE
- Sweden
- Prior art keywords
- array
- lens
- light
- objective
- measurement
- Prior art date
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>
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 true SE8801704D0 (en) | 1988-05-05 |
SE8801704L 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) |
Families Citing this family (2)
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 |
CN104859562A (en) * | 2015-05-27 | 2015-08-26 | 北京信息科技大学 | Method and device for detecting barriers behind vehicle |
-
1988
- 1988-05-05 SE SE8801704A patent/SE461116B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE461116B (en) | 1990-01-08 |
SE8801704L (en) | 1989-11-06 |
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