WO2015145267A3 - Laser encoder for small metallic patches and method of operating the same - Google Patents

Laser encoder for small metallic patches and method of operating the same Download PDF

Info

Publication number
WO2015145267A3
WO2015145267A3 PCT/IB2015/001174 IB2015001174W WO2015145267A3 WO 2015145267 A3 WO2015145267 A3 WO 2015145267A3 IB 2015001174 W IB2015001174 W IB 2015001174W WO 2015145267 A3 WO2015145267 A3 WO 2015145267A3
Authority
WO
WIPO (PCT)
Prior art keywords
operating
encoder
same
focus lens
small metallic
Prior art date
Application number
PCT/IB2015/001174
Other languages
French (fr)
Other versions
WO2015145267A2 (en
Inventor
Richard M. Haddock
Original Assignee
Assa Abloy Ab
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 Assa Abloy Ab filed Critical Assa Abloy Ab
Publication of WO2015145267A2 publication Critical patent/WO2015145267A2/en
Publication of WO2015145267A3 publication Critical patent/WO2015145267A3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
    • G06K1/12—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
    • G06K1/126—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching by photographic or thermographic registration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/41—Marking using electromagnetic radiation

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

An encoder and a method of operating an encoder is provided. The disclosed encoder includes a focus lens having one or more position sensors that enable the focus lens to maintain a focusing position, even when the focus lens is not focused on a writing media. The one or more position sensors enable the encoder to continue its encoding process without having to process a full focus acquisition each time the focus lens returns to the writing media.
PCT/IB2015/001174 2014-02-26 2015-02-26 Laser encoder for small metallic patches and method of operating the same WO2015145267A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201461944662P 2014-02-26 2014-02-26
US61/944,662 2014-02-26
CH10052014 2014-07-02
CH01005/14 2014-07-02

Publications (2)

Publication Number Publication Date
WO2015145267A2 WO2015145267A2 (en) 2015-10-01
WO2015145267A3 true WO2015145267A3 (en) 2016-01-21

Family

ID=54196514

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2015/001174 WO2015145267A2 (en) 2014-02-26 2015-02-26 Laser encoder for small metallic patches and method of operating the same

Country Status (1)

Country Link
WO (1) WO2015145267A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018126039A1 (en) * 2016-12-28 2018-07-05 M&B IP Analysts, LLC Optical encoder system and method
US10963724B2 (en) * 2019-04-01 2021-03-30 Novanta Corporation Absolute position encoder using a focused laser beam to detect position code words

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922351A (en) * 1984-12-31 1990-05-01 Canon Kabushiki Kaisha Optical information recording and reproducing apparatus
WO1990011598A1 (en) * 1989-03-17 1990-10-04 Optical Recording Corporation Optical recording and/or playback system with rotary scanner
WO1990011599A1 (en) * 1989-03-17 1990-10-04 Optical Recording Corporation Optical recording and/or playback system
US7140540B2 (en) * 2002-05-08 2006-11-28 Lasercard Corporation Method of making secure personal data card
US20070109928A1 (en) * 2005-11-14 2007-05-17 Masaya Kuwahara Optical disk apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4680459A (en) 1981-02-27 1987-07-14 Drexler Technology Corporation Updatable micrographic pocket data card
US4814594A (en) 1982-11-22 1989-03-21 Drexler Technology Corporation Updatable micrographic pocket data card
US5421619A (en) 1993-12-22 1995-06-06 Drexler Technology Corporation Laser imaged identification card

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922351A (en) * 1984-12-31 1990-05-01 Canon Kabushiki Kaisha Optical information recording and reproducing apparatus
WO1990011598A1 (en) * 1989-03-17 1990-10-04 Optical Recording Corporation Optical recording and/or playback system with rotary scanner
WO1990011599A1 (en) * 1989-03-17 1990-10-04 Optical Recording Corporation Optical recording and/or playback system
US7140540B2 (en) * 2002-05-08 2006-11-28 Lasercard Corporation Method of making secure personal data card
US20070109928A1 (en) * 2005-11-14 2007-05-17 Masaya Kuwahara Optical disk apparatus

Also Published As

Publication number Publication date
WO2015145267A2 (en) 2015-10-01

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