CA2190189A1 - Method and Apparatus for Illumination and Imaging of a Surface - Google Patents

Method and Apparatus for Illumination and Imaging of a Surface

Info

Publication number
CA2190189A1
CA2190189A1 CA2190189A CA2190189A CA2190189A1 CA 2190189 A1 CA2190189 A1 CA 2190189A1 CA 2190189 A CA2190189 A CA 2190189A CA 2190189 A CA2190189 A CA 2190189A CA 2190189 A1 CA2190189 A1 CA 2190189A1
Authority
CA
Canada
Prior art keywords
apparatus
image
surface
illumination
obtaining
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA2190189A
Other languages
French (fr)
Other versions
CA2190189C (en
Inventor
Joe Zheng
John W. Sussmeier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
United Parcel Service of America Inc
Original Assignee
Joe Zheng
John W. Sussmeier
United Parcel Service Of America, Inc.
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
Priority to US08/020,295 priority Critical patent/US5399852A/en
Priority to US08/020,295 priority
Application filed by Joe Zheng, John W. Sussmeier, United Parcel Service Of America, Inc. filed Critical Joe Zheng
Priority to PCT/US1994/001803 priority patent/WO1994019766A2/en
Priority to CA 2156153 priority patent/CA2156153C/en
Publication of CA2190189A1 publication Critical patent/CA2190189A1/en
Application granted granted Critical
Publication of CA2190189C publication Critical patent/CA2190189C/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Abstract

An apparatus for illumination and imaging of a surface includes an apparatus for illuminating the surface, an apparatus for obtaining an image of the illuminated surface and providing an output signal representative of the obtained image, and an apparatus for limiting the exposure time of the image-obtaining apparatus to a selected fast exposure time less than the video frame rate of the image-obtaining apparatus. The image-obtaining apparatus may be a CCD-based camera (40). The CCD-based camera and the illumination apparatus may be mounted in a shroud (20) having an opaque side wall. A first polarizing film (100) may be provided intermediate the illumination apparatus and the surface, and a second polarizing film (102), having a polarization orientation orthogonal to that of the first polarizing film, may be provided intermediate to the surface and the image-obtaining apparatus. Tip switches (130, 132) may be provided to prevent activation of the illumination apparatus and the image obtaining apparatus except when a loser edge of the shroud side wall is in contact with the surface.
CA002190189A 1993-02-19 1994-02-18 Method and apparatus for illumination and imaging of a surface Expired - Lifetime CA2190189C (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US08/020,295 US5399852A (en) 1993-02-19 1993-02-19 Method and apparatus for illumination and imaging of a surface employing cross polarization
US08/020,295 1993-02-19
PCT/US1994/001803 WO1994019766A2 (en) 1993-02-19 1994-02-18 Method and apparatus for illumination and imaging of a surface
CA 2156153 CA2156153C (en) 1993-02-19 1994-02-18 Method and apparatus for illumination and imaging of a surface

Publications (2)

Publication Number Publication Date
CA2190189A1 true CA2190189A1 (en) 1994-09-01
CA2190189C CA2190189C (en) 1999-07-13

Family

ID=25678108

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002190189A Expired - Lifetime CA2190189C (en) 1993-02-19 1994-02-18 Method and apparatus for illumination and imaging of a surface
CA002190190A Expired - Lifetime CA2190190C (en) 1993-02-19 1994-02-18 Method and apparatus for illumination and imaging of a surface

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA002190190A Expired - Lifetime CA2190190C (en) 1993-02-19 1994-02-18 Method and apparatus for illumination and imaging of a surface

Country Status (1)

Country Link
CA (2) CA2190189C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9323969B2 (en) 2008-10-31 2016-04-26 Hand Held Products, Inc. Indicia reading terminal including frame quality evaluation processing

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7331523B2 (en) 2001-07-13 2008-02-19 Hand Held Products, Inc. Adaptive optical image reader
US7852519B2 (en) 2007-02-05 2010-12-14 Hand Held Products, Inc. Dual-tasking decoder for improved symbol reading

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9323969B2 (en) 2008-10-31 2016-04-26 Hand Held Products, Inc. Indicia reading terminal including frame quality evaluation processing
US9990520B2 (en) 2008-10-31 2018-06-05 Hand Held Products, Inc. Indicia reading terminal including frame quality evaluation processing
US10296770B2 (en) 2008-10-31 2019-05-21 Hand Held Products, Inc. Indicia reading terminal including frame quality evaluation processing

Also Published As

Publication number Publication date
CA2190190C (en) 1999-08-10
CA2190190A1 (en) 1994-09-01
CA2190189C (en) 1999-07-13

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Effective date: 20140218