CA2190190A1 - 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
CA2190190A1
CA2190190A1 CA2190190A CA2190190A CA2190190A1 CA 2190190 A1 CA2190190 A1 CA 2190190A1 CA 2190190 A CA2190190 A CA 2190190A CA 2190190 A CA2190190 A CA 2190190A CA 2190190 A1 CA2190190 A1 CA 2190190A1
Authority
CA
Canada
Prior art keywords
image
obtaining
illumination
polarizing film
ccd
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
CA2190190A
Other languages
French (fr)
Other versions
CA2190190C (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
Individual
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 claimed from US08/020,295 external-priority patent/US5399852A/en
Application filed by Individual filed Critical Individual
Publication of CA2190190A1 publication Critical patent/CA2190190A1/en
Application granted granted Critical
Publication of CA2190190C publication Critical patent/CA2190190C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Image Input (AREA)

Abstract

An apparatus for illumination and imaging of a surface includes an apparatus for illuminating the surface, and 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 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 lower edge of the shroud side wall is in contact with the surface.
CA002190190A 1993-02-19 1994-02-18 Method and apparatus for illumination and imaging of a surface Expired - Lifetime CA2190190C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/020,295 1993-02-19
US08/020,295 US5399852A (en) 1993-02-19 1993-02-19 Method and apparatus for illumination and imaging of a surface employing cross polarization
CA002156153A CA2156153C (en) 1993-02-19 1994-02-18 Method and apparatus for illumination and imaging of a surface
PCT/US1994/001803 WO1994019766A2 (en) 1993-02-19 1994-02-18 Method and apparatus for illumination and imaging of a surface

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002156153A Division CA2156153C (en) 1993-02-19 1994-02-18 Method and apparatus for illumination and imaging of a surface

Publications (2)

Publication Number Publication Date
CA2190190A1 true CA2190190A1 (en) 1994-09-01
CA2190190C CA2190190C (en) 1999-08-10

Family

ID=25678108

Family Applications (2)

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
CA002190189A Expired - Lifetime CA2190189C (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
CA002190189A Expired - Lifetime CA2190189C (en) 1993-02-19 1994-02-18 Method and apparatus for illumination and imaging of a surface

Country Status (1)

Country Link
CA (2) CA2190190C (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
CA2190189C (en) 1999-07-13
CA2190189A1 (en) 1994-09-01

Similar Documents

Publication Publication Date Title
WO1994019766A3 (en) Method and apparatus for illumination and imaging of a surface
CA2263360A1 (en) Fingerprint imaging apparatus with auxiliary lens
CA2200445A1 (en) Method and apparatus for detecting a microscope slide coverslip
EP1737230A3 (en) Image processing apparatus
EP0469856A3 (en) Viewing and illuminating video probe
MY138010A (en) Contact type image sensor, producing method of the same, and information processing apparatus
EP0437065A3 (en) A method and a camera for combination pictures in a photograph
AU2024992A (en) Apparatus for operating a conventional film camera in an electronic mode operation
GB2330976A (en) Optical detection system
AR003814A1 (en) METHOD TO OPERATE A VIDEO CAMERA, METHODS TO INCREASE AND DECREASE ITS DEGREE OF MAGNIFICATION AND A VIDEO CAMERA OPERATED BY THE METHOD.
CA2048095A1 (en) Apparatus for producing and recording video signals
WO1992001965A3 (en) Device for the simultaneous generation of confocal images
EP0335282A3 (en) Three-dimensional photographing and three-dimensional playback device by spatial time-sharing method
EP0385698A3 (en) Projection lens and projection television system using the same
CA2009129A1 (en) Image pickup head for image pickup device
CA2190190A1 (en) Method and Apparatus for Illumination and Imaging of a Surface
WO1997015855A3 (en) Optical instrument
DE58905217D1 (en) AUTOMATIC SCREEN ADJUSTMENT OF PIPES.
DE69222967D1 (en) Device for converting a video input signal into a cinematographic film image
AU4577697A (en) Method and device for detection of deposit value indicia
CA2063070A1 (en) White Level Detection Circuit for an Optical Image Reader
CA2336038A1 (en) Image recording apparatus
JPS5372517A (en) Picture transmitting unit
JPS6423145A (en) Optical appearance inspection device
JPS5294768A (en) Electronic microscope

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20140218

MKEX Expiry

Effective date: 20140218