WO1985003397A2 - Ecran a fibres optiques - Google Patents

Ecran a fibres optiques Download PDF

Info

Publication number
WO1985003397A2
WO1985003397A2 PCT/DE1985/000024 DE8500024W WO8503397A2 WO 1985003397 A2 WO1985003397 A2 WO 1985003397A2 DE 8500024 W DE8500024 W DE 8500024W WO 8503397 A2 WO8503397 A2 WO 8503397A2
Authority
WO
WIPO (PCT)
Prior art keywords
light
optical fiber
optical fibers
flat screen
ring
Prior art date
Application number
PCT/DE1985/000024
Other languages
German (de)
English (en)
Other versions
WO1985003397A3 (fr
Inventor
Heiner Stukenbrock
Original Assignee
Heiner Stukenbrock
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 Heiner Stukenbrock filed Critical Heiner Stukenbrock
Publication of WO1985003397A2 publication Critical patent/WO1985003397A2/fr
Publication of WO1985003397A3 publication Critical patent/WO1985003397A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/02—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only

Definitions

  • the invention relates to an optical fiber flat screen.
  • the object of the invention is to make it possible to use highly efficient semiconductor diode lasers of small design in the infrared range for optical fiber flat screens.
  • a light valve designed as a thin-walled hollow cylinder, is placed directly in front of the light entry ends of the optical fibers.
  • the modulated infrared diode laser beam creates a fine grid of transparent and non-transparent zones in accordance with the image content in the light valve.
  • a projection lamp radiates visible light through the light valve into the optical fibers, which can be provided with color filters at the exit end for the purpose of displaying colors.
  • Smectic liquid crystals or iron garnet are suitable as light valve materials whose transparency for visible light can be surface-modulated by focused infrared laser light.
  • the transparency of a light valve ring arranged before the lig inlet ends is superficially modulated by means of a laser beam deviated by a rotating mirror.
  • the fanned out light exit ends of an optical fiber bundle, the densely packed light entry ends of which are never arranged on a screw are illuminated by a projection lamp, form a flat screen.
  • D Transparency of a light valve ring placed in front of the light entry ends is surface-modulated by a laser beam deflected by means of a rotating mirror. ONLY FOR INFORMATION

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Les extrémités écartées de sortie de lumière d'un faisceau de fibres optiques, dont les extrémités d'entrée de lumière serrées et disposées sur une ligne hélicoïdale sont illuminées par une lampe de projection, forment un écran plat. La transparence d'un anneau de soupape de lumière placé avant les extrémités d'entrée de lumière est modulée superficiellement au moyen d'un rayon laser dévié par un miroir tournant.
PCT/DE1985/000024 1984-01-30 1985-01-29 Ecran a fibres optiques WO1985003397A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3403057 1984-01-30
DEP3403057.3 1984-01-30

Publications (2)

Publication Number Publication Date
WO1985003397A2 true WO1985003397A2 (fr) 1985-08-01
WO1985003397A3 WO1985003397A3 (fr) 1985-09-12

Family

ID=6226232

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1985/000024 WO1985003397A2 (fr) 1984-01-30 1985-01-29 Ecran a fibres optiques

Country Status (4)

Country Link
EP (1) EP0169861A1 (fr)
JP (1) JPS61501595A (fr)
AU (1) AU3931485A (fr)
WO (1) WO1985003397A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU680265B2 (en) * 1993-08-18 1997-07-24 Ramasoft3 Pty Limited Optical fibre flat screen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936871A (en) * 1974-05-16 1976-02-03 The United States Of America As Represented By The Secretary Of The Navy Multi-wavelength display system
US4085420A (en) * 1975-10-30 1978-04-18 Heiner Stukenbrock Light pipe image display

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936871A (en) * 1974-05-16 1976-02-03 The United States Of America As Represented By The Secretary Of The Navy Multi-wavelength display system
US4085420A (en) * 1975-10-30 1978-04-18 Heiner Stukenbrock Light pipe image display

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Volume 6, No 111 (E-114) (989) 22 June 1982 & JP, A, 5741076 (Fujitsuu Kiden K.K.) 6 March 1982 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU680265B2 (en) * 1993-08-18 1997-07-24 Ramasoft3 Pty Limited Optical fibre flat screen
US5778111A (en) * 1993-08-18 1998-07-07 Ramasoft3 Pty. Limited Optical fibre flat screen

Also Published As

Publication number Publication date
EP0169861A1 (fr) 1986-02-05
JPS61501595A (ja) 1986-07-31
AU3931485A (en) 1985-08-09
WO1985003397A3 (fr) 1985-09-12

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Legal Events

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AL Designated countries for regional patents

Designated state(s): AT BE CH DE FR GB LU NL SE

CR1 Correction of entry in section i

Free format text: IN PAT.BUL.17/85,UNDER PUBLISHED REPLACE TEXT BY "WITHOUT INTERN.SEARCH REPORT AND TO BE REPUBL.UPON RECEIPT OF THAT REPORT"

AK Designated states

Designated state(s): AU BR JP SU US

AL Designated countries for regional patents

Designated state(s): AT BE CH DE FR GB LU NL SE