FI19992069A - Apparatus and method based on telescopic principle - Google Patents

Apparatus and method based on telescopic principle

Info

Publication number
FI19992069A
FI19992069A FI992069A FI19992069A FI19992069A FI 19992069 A FI19992069 A FI 19992069A FI 992069 A FI992069 A FI 992069A FI 19992069 A FI19992069 A FI 19992069A FI 19992069 A FI19992069 A FI 19992069A
Authority
FI
Finland
Prior art keywords
objective
mirror
image
telecentric
plane
Prior art date
Application number
FI992069A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI114743B (en
Inventor
Jyri Paavola
Lasse Lindstroem
Original Assignee
Ekspansio Engineering Ltd Oy
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 Ekspansio Engineering Ltd Oy filed Critical Ekspansio Engineering Ltd Oy
Priority to FI992069A priority Critical patent/FI114743B/en
Priority to DE60039566T priority patent/DE60039566D1/en
Priority to EP00660159A priority patent/EP1089106B1/en
Priority to AT00660159T priority patent/ATE402423T1/en
Priority to CA002320577A priority patent/CA2320577C/en
Priority to US09/675,548 priority patent/US6952231B1/en
Publication of FI19992069A publication Critical patent/FI19992069A/en
Application granted granted Critical
Publication of FI114743B publication Critical patent/FI114743B/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/02—Catoptric systems, e.g. image erecting and reversing system
    • G02B17/06—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/22—Telecentric objectives or lens systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Lenses (AREA)
  • Microscoopes, Condenser (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The invention relates to an apparatus based on the telecentric imaging system for forming an image of a linear zone (17) of an object (1). The apparatus comprises a non-telecentric camera (9) consisting of an objective (8) and an image plane (19) formed by a row of photosensitive cells (15) as well as telecentric imaging means (18) between the objective and the object. The telecentric means comprise a concave strip mirror (6), which is aligned with said row of cells and with the aperture of said objective located in its focal plane, as well as a strip-like plane mirror (5) between the parabolic mirror and the objective, whereby the radiation being reflected from the objective continues via the parabolic mirror and the planar mirror further to the objective and from there to the image plane. In the apparatus there is further a scattered light source (7) which lightens the object. The apparatus is adapted for measuring the dimensions of the width parts of the object. <IMAGE>
FI992069A 1999-09-28 1999-09-28 Apparatus and procedure operating on telecentric principle FI114743B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FI992069A FI114743B (en) 1999-09-28 1999-09-28 Apparatus and procedure operating on telecentric principle
DE60039566T DE60039566D1 (en) 1999-09-28 2000-09-19 Device and method according to the telecentric principle
EP00660159A EP1089106B1 (en) 1999-09-28 2000-09-19 Apparatus and method operating on the telecentric principle
AT00660159T ATE402423T1 (en) 1999-09-28 2000-09-19 DEVICE AND METHOD BASED ON THE TELECENTRIC PRINCIPLE
CA002320577A CA2320577C (en) 1999-09-28 2000-09-25 Apparatus and method operating on the telecentric principle
US09/675,548 US6952231B1 (en) 1999-09-28 2000-09-28 Apparatus based on a telecentric imaging system for forming an image of a linear zone of an object

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI992069A FI114743B (en) 1999-09-28 1999-09-28 Apparatus and procedure operating on telecentric principle
FI992069 1999-09-28

Publications (2)

Publication Number Publication Date
FI19992069A true FI19992069A (en) 2001-03-28
FI114743B FI114743B (en) 2004-12-15

Family

ID=8555358

Family Applications (1)

Application Number Title Priority Date Filing Date
FI992069A FI114743B (en) 1999-09-28 1999-09-28 Apparatus and procedure operating on telecentric principle

Country Status (6)

Country Link
US (1) US6952231B1 (en)
EP (1) EP1089106B1 (en)
AT (1) ATE402423T1 (en)
CA (1) CA2320577C (en)
DE (1) DE60039566D1 (en)
FI (1) FI114743B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI116804B (en) * 2004-05-18 2006-02-28 Ekspansio Engineering Ltd Oy Optical inspection of surfaces showing material in different directions
FI117575B (en) 2004-05-27 2006-11-30 Ekspansio Engineering Ltd Oy Examination of the roughness of the wood surface
DE102006054275B3 (en) * 2006-11-17 2008-01-31 Prewi Schneidwerkzeuge Gmbh Processing units adjusting method for e.g. computer numerical control wood processing machine, involves reproducing cross section of work piece in final condition, by notebook, such that notebook is used as setting jig to position tool
JP5538223B2 (en) * 2008-07-18 2014-07-02 瀬戸製材株式会社 Wood management system
JP6268899B2 (en) * 2013-10-11 2018-01-31 富士ゼロックス株式会社 Image reading apparatus and image reading optical system
CA2959844C (en) * 2016-03-01 2024-05-28 Vab Solutions Inc. Tracking system and methods for tracking wood products in a production line
CN110441311B (en) * 2019-07-22 2021-10-08 中国科学院上海光学精密机械研究所 Multi-axis and multi-focus lens for multi-object plane imaging
US10786925B1 (en) * 2020-02-21 2020-09-29 OnSize Inc. Optical method and apparatus for measuring objects
EP4227673A1 (en) 2022-01-27 2023-08-16 Finnos Oy Apparatus for capturing images of elongated timber

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI53358C (en) * 1976-02-20 1978-04-10 Ahlstroem Oy ANORDINATION FOR THE MAINTENANCE OF THE BRIDGE AV TRAEVIRKE
FI54972C (en) 1978-01-18 1979-04-10 A Elektroniikka FRAMEWORK FOR OPTICAL MAINTENANCE WITH A DIMENSION OF HOS EN KROPP
SE414543C (en) 1978-11-10 1982-10-04 Kockums Automation METHOD VALUE PROCEDURE FOR DETERMINING A DETERMINED DIAMETER AND / OR CURVING VALUE OF A LONG-TERM FORM LIKE A STOCK OR CLEAR AND DEVICE FOR IMPLEMENTATION OF THE PROCEDURE
FI68910C (en) 1984-01-17 1986-11-25 Kimmo Koskenohi FOERFARANDE FOER OPTISK MAETNING AV LAONGSTRAECKTA STYCKEN
JPS62137504A (en) * 1985-12-10 1987-06-20 Sumitomo Special Metals Co Ltd Width measuring apparatus and surface defect detector for partially clad material
DE3707979A1 (en) * 1987-03-12 1988-09-29 Sick Optik Elektronik Erwin OPTICAL SCANNER WITH TELECENTRIC LINE CAMERA
IL85862A (en) 1988-03-24 1993-01-14 Orbot Systems Ltd Telecentric imaging system
JPH0320777A (en) * 1989-04-28 1991-01-29 Seiko Epson Corp Projection type color display device
US5383052A (en) * 1992-05-27 1995-01-17 Dainippon Screen Mfg. Co., Ltd. Afocal optical system and multibeam recording apparatus comprising the same
NO178909C (en) * 1993-04-19 1996-06-26 Toni Rydningen Measuring device
NO180316C (en) 1993-04-19 1997-04-09 Toni Rydningen Device for dimension measurement
FI95078C (en) * 1993-11-17 1995-12-11 Cimmon Oy Method and apparatus for optically measuring the shape of elongate bodies
JPH08304032A (en) * 1994-06-27 1996-11-22 Honshu Paper Co Ltd Measuring method for width of margin part and thickness of metal vapor-deposited film of metallized film for capacitor
US6324016B1 (en) * 1998-11-18 2001-11-27 Spencer D. Luster Telecentric lens

Also Published As

Publication number Publication date
ATE402423T1 (en) 2008-08-15
FI114743B (en) 2004-12-15
EP1089106A3 (en) 2003-09-24
US6952231B1 (en) 2005-10-04
CA2320577A1 (en) 2001-03-28
DE60039566D1 (en) 2008-09-04
CA2320577C (en) 2009-06-23
EP1089106A2 (en) 2001-04-04
EP1089106B1 (en) 2008-07-23

Similar Documents

Publication Publication Date Title
US6813440B1 (en) Body scanner
TW200506491A (en) Projection device
EP1791343A3 (en) Large depth of field line scan camera
ATE391937T1 (en) METHOD AND DEVICE FOR CLOSE-UP IMAGE RECORDING IN A MOBILE IMAGING SYSTEM
EP1318425A3 (en) Catadioptric optical system and exposure apparatus equipped with the same
TW200628868A (en) Image inspection system for correcting focal position in autofocusing
EP1061329A3 (en) Method and system for automatic non-contact measurements of optical properties of optical objects
DE69219907D1 (en) Homogenizing arrangement for laser radiation and imaging lidar system containing the same
JP2004104168A5 (en)
JP2007334216A (en) Irradiating apparatus and irradiating system with the same
FI19992069A (en) Apparatus and method based on telescopic principle
JPWO2019159427A1 (en) Camera module adjustment device and camera module adjustment method
EP1762874A3 (en) Lens apparatus comprising a focus-state detecting unit
ATE316254T1 (en) PARALLEL PROCESSING OPTICAL RANGE FINDER
EP0377454A3 (en) Image reading apparatus
ATE320019T1 (en) USE OF A DEVICE FOR RECORDING STEREOSCOPIC IMAGES
EP1791342A3 (en) An image forming apparatus having an optical unit and an image reading device capable of preventing deterioration of image reading accuracy
DE60123568D1 (en) Use of distortion optics in imaging systems
EP1544682A3 (en) Exposure apparatus, alignment method and device manufacturing method
EP1538461A3 (en) Method of and apparatus for reading out radiation image
SE9504326D0 (en) Method and device for edge detection
TW200519353A (en) Optical fixed-distance sensing apparatus
EP1067755A3 (en) Imaging device having an integrated position sensing device
EP1258701A3 (en) A process for reading fractions of an interval between contiguous photo-sensitive elements in a linear optical sensor
SE8801704L (en) DEVICE FOR MEASURING DEVICES USING LASER RADIATIONS