AU4747200A - Device for optically transmitting data - Google Patents

Device for optically transmitting data

Info

Publication number
AU4747200A
AU4747200A AU47472/00A AU4747200A AU4747200A AU 4747200 A AU4747200 A AU 4747200A AU 47472/00 A AU47472/00 A AU 47472/00A AU 4747200 A AU4747200 A AU 4747200A AU 4747200 A AU4747200 A AU 4747200A
Authority
AU
Australia
Prior art keywords
primary beam
optical element
light emitting
emitting device
transmitting data
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.)
Abandoned
Application number
AU47472/00A
Inventor
Wolfgang Heidrich
Franz Refle
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.)
Roschiwal and Partner Ingenieur Augsburg GmbH
Original Assignee
Roschiwal & Partner Ingenieur
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 Roschiwal & Partner Ingenieur filed Critical Roschiwal & Partner Ingenieur
Publication of AU4747200A publication Critical patent/AU4747200A/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • 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
    • G02B6/2848—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 having refractive means, e.g. imaging elements between light guides as splitting, branching and/or combining devices, e.g. lenses, holograms
    • 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
    • G02B6/2817—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 using reflective elements to split or combine optical signals

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The invention relates to a device for optically transmitting data between a light emitting device (2) that emits a modulated primary beam (8) and a plurality of light receiving devices (13) for detecting and demodulating the light emitted by the light emitting device (2). Devices of this type have the disadvantage that they only allow a transmission of data information between the light emitting device (2) and the receiving devices that is spatially directed in one dimension. The transmitted data information is difficult to scan at several different points within the radiation field. The aim of the invention is to provide a device for optically transmitting data that makes the transmitted data information accessible to a multitude of receiving devices over the entire space and without interferences even when operating at low optical radiation efficiencies. To this end, at least one optical element (4) is positioned in the primary beam (8), at least a part of the primary beam (8) hits the or every optical element (4), thereby stopping down from said primary beam a secondary beam (9). The one or every optical element (4) deviates the secondary beam (9) and said secondary beam (9), once it emerges from the one or every optical element (4), spreads in space in a direction that differs from that of the primary beam (8) and extends at least temporarily into a solid angle area that is not covered by the primary beam (8).
AU47472/00A 1999-04-14 2000-04-11 Device for optically transmitting data Abandoned AU4747200A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19916754A DE19916754A1 (en) 1999-04-14 1999-04-14 Optical data transmission installation making available transmitted data information to several receivers in entire space with low optical radiation power
DE19916754 1999-04-14
PCT/EP2000/003191 WO2000064076A2 (en) 1999-04-14 2000-04-11 Device for optically transmitting data in space

Publications (1)

Publication Number Publication Date
AU4747200A true AU4747200A (en) 2000-11-02

Family

ID=7904476

Family Applications (1)

Application Number Title Priority Date Filing Date
AU47472/00A Abandoned AU4747200A (en) 1999-04-14 2000-04-11 Device for optically transmitting data

Country Status (5)

Country Link
EP (1) EP1169797B1 (en)
AT (1) ATE252792T1 (en)
AU (1) AU4747200A (en)
DE (2) DE19916754A1 (en)
WO (1) WO2000064076A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007027166A1 (en) * 2007-06-13 2008-12-18 Siemens Ag Data transmission device for use in bus system, particularly for optical free space transmission, has optoelectronic signal converter, which transmits signals unidirectionally between two end positions
DE102019208061A1 (en) * 2019-06-03 2020-12-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Wireless optical communication network and wireless optical communication device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2258751B1 (en) * 1974-01-18 1978-12-08 Thomson Csf
US4090067A (en) * 1976-11-02 1978-05-16 Sperry Rand Corporation Optical data communication system
DE2903821A1 (en) * 1979-02-01 1980-08-07 Aeg Telefunken Kabelwerke Opto-electronic measurement systems - comprises transmission with beam splitter and modulator connected to detector
JP3284659B2 (en) * 1993-04-09 2002-05-20 株式会社フジクラ Optical switching device for WDM optical communication
US5517768A (en) * 1993-05-31 1996-05-21 Aviv; Zvi Apparatus and method for finishing processes
DE19523097A1 (en) * 1995-06-26 1997-01-02 Abb Research Ltd Distributor of information
FR2739944B1 (en) * 1995-10-11 1997-12-19 Telecommunications Sa OPTICAL SYSTEM FOR LARGE FIELD VIEWS

Also Published As

Publication number Publication date
EP1169797B1 (en) 2003-10-22
EP1169797A1 (en) 2002-01-09
WO2000064076A3 (en) 2001-04-05
ATE252792T1 (en) 2003-11-15
DE50004159D1 (en) 2003-11-27
WO2000064076A2 (en) 2000-10-26
DE19916754A1 (en) 2000-10-19

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase