DE69421495D1 - Verfahren und vorrichtung zum aufteilen von trapezen - Google Patents

Verfahren und vorrichtung zum aufteilen von trapezen

Info

Publication number
DE69421495D1
DE69421495D1 DE69421495T DE69421495T DE69421495D1 DE 69421495 D1 DE69421495 D1 DE 69421495D1 DE 69421495 T DE69421495 T DE 69421495T DE 69421495 T DE69421495 T DE 69421495T DE 69421495 D1 DE69421495 D1 DE 69421495D1
Authority
DE
Germany
Prior art keywords
keystone
dividing
dividing keystone
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.)
Expired - Lifetime
Application number
DE69421495T
Other languages
English (en)
Inventor
Masumi Norizuki
Masami Goto
Martin Bouda
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69421495D1 publication Critical patent/DE69421495D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B6/122—Basic optical elements, e.g. light-guiding paths
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B6/122—Basic optical elements, e.g. light-guiding paths
    • G02B6/125—Bends, branchings or intersections
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B2006/12133—Functions
    • G02B2006/12147—Coupler
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B2006/12166—Manufacturing methods
    • G02B2006/12195—Tapering

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optical Integrated Circuits (AREA)
DE69421495T 1993-03-19 1994-03-17 Verfahren und vorrichtung zum aufteilen von trapezen Expired - Lifetime DE69421495D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6003393 1993-03-19
PCT/JP1994/000433 WO1994022037A1 (fr) 1993-03-19 1994-03-17 Methode et appareil de division d'un trapeze

Publications (1)

Publication Number Publication Date
DE69421495D1 true DE69421495D1 (de) 1999-12-09

Family

ID=13130360

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69421495T Expired - Lifetime DE69421495D1 (de) 1993-03-19 1994-03-17 Verfahren und vorrichtung zum aufteilen von trapezen

Country Status (4)

Country Link
US (1) US5764234A (de)
EP (1) EP0647862B1 (de)
DE (1) DE69421495D1 (de)
WO (1) WO1994022037A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8136058B2 (en) * 2006-03-02 2012-03-13 Ravi R Pai Method and system for representing geometrical layout design data in electronic design systems
JP2010236978A (ja) * 2009-03-31 2010-10-21 Hitachi High-Technologies Corp パターン寸法算出方法、画像解析方法及び装置
JP5695716B2 (ja) * 2013-09-25 2015-04-08 株式会社日立ハイテクノロジーズ パターン寸法算出方法、及び画像解析装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2680295B2 (ja) * 1984-03-22 1997-11-19 株式会社東芝 電子ビーム露光装置の描画データ作成方法及びその装置
JPS61248176A (ja) * 1985-04-25 1986-11-05 Matsushita Electric Ind Co Ltd 図形発生装置
JPS61267096A (ja) * 1985-05-21 1986-11-26 松下電器産業株式会社 多角形図形のぬりつぶし描画表示装置
JPH01241556A (ja) * 1988-03-22 1989-09-26 Dainippon Screen Mfg Co Ltd 凸ループ分割を用いた塗り潰しデータ生成方法
US5133049A (en) * 1990-03-14 1992-07-21 Hewlett-Packard Company Accelerated decomposition of small polygons into trapezoids
US5129051A (en) * 1990-03-16 1992-07-07 Hewlett-Packard Company Decomposition of arbitrary polygons into trapezoids
JP2800404B2 (ja) * 1990-11-20 1998-09-21 ダイキン工業株式会社 多角形分割方法およびその装置

Also Published As

Publication number Publication date
US5764234A (en) 1998-06-09
EP0647862B1 (de) 1999-11-03
EP0647862A1 (de) 1995-04-12
WO1994022037A1 (fr) 1994-09-29
EP0647862A4 (de) 1995-08-16

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Legal Events

Date Code Title Description
8332 No legal effect for de