WO2007025972A3 - Optical scanning device - Google Patents

Optical scanning device Download PDF

Info

Publication number
WO2007025972A3
WO2007025972A3 PCT/EP2006/065787 EP2006065787W WO2007025972A3 WO 2007025972 A3 WO2007025972 A3 WO 2007025972A3 EP 2006065787 W EP2006065787 W EP 2006065787W WO 2007025972 A3 WO2007025972 A3 WO 2007025972A3
Authority
WO
WIPO (PCT)
Prior art keywords
optical system
scanning device
optical scanning
deflection element
optical
Prior art date
Application number
PCT/EP2006/065787
Other languages
French (fr)
Other versions
WO2007025972A2 (en
Inventor
Andrew Forrest
Original Assignee
Imp Innovations Ltd
Andrew Forrest
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 Imp Innovations Ltd, Andrew Forrest filed Critical Imp Innovations Ltd
Publication of WO2007025972A2 publication Critical patent/WO2007025972A2/en
Publication of WO2007025972A3 publication Critical patent/WO2007025972A3/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/12—Scanning systems using multifaceted mirrors
    • G02B26/125—Details of the optical system between the polygonal mirror and the image plane
    • G02B26/126—Details of the optical system between the polygonal mirror and the image plane including curved mirrors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/105—Scanning systems with one or more pivoting mirrors or galvano-mirrors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/12—Scanning systems using multifaceted mirrors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/12—Scanning systems using multifaceted mirrors
    • G02B26/124—Details of the optical system between the light source and the polygonal mirror
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/12—Scanning systems using multifaceted mirrors
    • G02B26/125—Details of the optical system between the polygonal mirror and the image plane
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/113—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using oscillating or rotating mirrors

Abstract

An optical scanning device includes a deflection element [2] that scans a radiation beam via a first optical system [3] over a surface [6]. The radiation reflected by the surface is converged on a detection system [8] by a second optical system. The first and second optical system together image the scanning centre of the deflection element on the detection system. The distance between the deflection element and the first optical system is preferably in the range 0.6 f1 to 0.9 f1, where f1 is the focal length of the first optical system.
PCT/EP2006/065787 2005-08-30 2006-08-29 Optical scanning device WO2007025972A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0517630.0 2005-08-30
GB0517630A GB2429764A (en) 2005-08-30 2005-08-30 A scanning device using a first optical system with a first focal length and a second optical system with a second focal length

Publications (2)

Publication Number Publication Date
WO2007025972A2 WO2007025972A2 (en) 2007-03-08
WO2007025972A3 true WO2007025972A3 (en) 2007-04-26

Family

ID=35198581

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/065787 WO2007025972A2 (en) 2005-08-30 2006-08-29 Optical scanning device

Country Status (2)

Country Link
GB (1) GB2429764A (en)
WO (1) WO2007025972A2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295743A (en) * 1978-06-23 1981-10-20 Erwin Sick Gmbh, Optik-Elektronik Apparatus for determining faults in strip material
US4632546A (en) * 1983-04-22 1986-12-30 Erwin Sick Gmbh Optik-Elektronik Grooved surface defect detection apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1407409A (en) * 1971-10-27 1975-09-24 Ferranti Ltd Detection of blemishes in a surface
DE3518832A1 (en) * 1985-05-24 1986-11-27 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch SURFACE TEXTURE DETECTING LIGHT SCAN WITH A LIGHT CONCENTRATOR
DE3737631C1 (en) * 1987-11-05 1989-03-02 Sick Optik Elektronik Erwin Optical scanning device for flat surfaces
JPH11326188A (en) * 1998-05-12 1999-11-26 Fuji Electric Co Ltd Oil film detecting device
US7187445B2 (en) * 2001-07-19 2007-03-06 Automotive Distance Control Systems Gmbh Method and apparatus for optically scanning a scene

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295743A (en) * 1978-06-23 1981-10-20 Erwin Sick Gmbh, Optik-Elektronik Apparatus for determining faults in strip material
US4632546A (en) * 1983-04-22 1986-12-30 Erwin Sick Gmbh Optik-Elektronik Grooved surface defect detection apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SURESHBABU S K ET AL: "MULTICHANNEL TELECENTRIC FLYING SPOT SCANNER FOR REAL-TIME SURFACE INSPECTION", PROCEEDINGS OF THE SPIE, SPIE, BELLINGHAM, VA, US, vol. 3823, 1999, pages 168 - 177, XP009057421, ISSN: 0277-786X *

Also Published As

Publication number Publication date
WO2007025972A2 (en) 2007-03-08
GB0517630D0 (en) 2005-10-05
GB2429764A (en) 2007-03-07

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