WO1998015164A3 - Appareil et technique de projection optique - Google Patents

Appareil et technique de projection optique Download PDF

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Publication number
WO1998015164A3
WO1998015164A3 PCT/IB1996/001129 IB9601129W WO9815164A3 WO 1998015164 A3 WO1998015164 A3 WO 1998015164A3 IB 9601129 W IB9601129 W IB 9601129W WO 9815164 A3 WO9815164 A3 WO 9815164A3
Authority
WO
WIPO (PCT)
Prior art keywords
image
projection apparatus
optical projection
input surface
focus
Prior art date
Application number
PCT/IB1996/001129
Other languages
English (en)
Other versions
WO1998015164A2 (fr
Inventor
Leo Beiser
Original Assignee
Leo Beiser
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 Leo Beiser filed Critical Leo Beiser
Priority to CA002305268A priority Critical patent/CA2305268C/fr
Priority to PCT/IB1996/001129 priority patent/WO1998015164A2/fr
Priority to EP96933567A priority patent/EP0931275A4/fr
Publication of WO1998015164A2 publication Critical patent/WO1998015164A2/fr
Publication of WO1998015164A3 publication Critical patent/WO1998015164A3/fr

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/147—Optical correction of image distortions, e.g. keystone
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
    • G03B37/06—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe involving anamorphosis

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lenses (AREA)

Abstract

Certains systèmes optiques d'imagerie présentent des surfaces focales de l'image verticale et de l'image horizontale disparates, dont l'une d'entre elles au moins est inclinée par rapport à l'axe optique. L'optique de projection qui éclaire lesdits systèmes doit faire en sorte que les composants verticaux de l'image convergent sur la surface de l'image verticale nominale et que les composants horizontaux de l'image convergent sur la surface de l'image horizontale disparate. Comme au moins une de ces surfaces d'image peut être inclinée par rapport à l'axe de projection, une correction est nécessaire pour maintenir la convergence sur la totalité des surfaces et éviter la déformation trapézoïdale de l'image. Le système peut également nécessiter des agrandissements verticaux et horizontaux différents des images lorsque celles-ci sont projetées sur lesdites surfaces focales disparates. L'invention décrit, entre autres, les techniques permettant de satisfaire à ces diverses exigences: projeter un champ objet rectiligne dans un système dont les plans d'image sont inclinés et disparates.
PCT/IB1996/001129 1996-10-08 1996-10-08 Appareil et technique de projection optique WO1998015164A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002305268A CA2305268C (fr) 1996-10-08 1996-10-08 Appareil et technique de projection optique
PCT/IB1996/001129 WO1998015164A2 (fr) 1996-10-08 1996-10-08 Appareil et technique de projection optique
EP96933567A EP0931275A4 (fr) 1996-10-08 1996-10-08 Appareil et technique de projection optique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB1996/001129 WO1998015164A2 (fr) 1996-10-08 1996-10-08 Appareil et technique de projection optique

Publications (2)

Publication Number Publication Date
WO1998015164A2 WO1998015164A2 (fr) 1998-04-16
WO1998015164A3 true WO1998015164A3 (fr) 1998-08-27

Family

ID=11004485

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1996/001129 WO1998015164A2 (fr) 1996-10-08 1996-10-08 Appareil et technique de projection optique

Country Status (3)

Country Link
EP (1) EP0931275A4 (fr)
CA (1) CA2305268C (fr)
WO (1) WO1998015164A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6485145B1 (en) * 1999-12-21 2002-11-26 Scram Technologies, Inc. Optical system for display panel
US6457834B1 (en) * 2001-01-24 2002-10-01 Scram Technologies, Inc. Optical system for display panel
CA2525254A1 (fr) * 2003-05-13 2004-12-25 Scram Technologies, Inc Systeme optique de precision pour panneau d'affichage
WO2009064467A1 (fr) * 2007-11-15 2009-05-22 Tharpe Christopher S Afficheur

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212397A (en) * 1962-06-25 1965-10-19 Wendell S Miller Keystone-distortion controlling system
US5220363A (en) * 1988-09-14 1993-06-15 Casio Computer Co., Ltd. Projector
US5381502A (en) * 1993-09-29 1995-01-10 Associated Universities, Inc. Flat or curved thin optical display panel
US5422691A (en) * 1991-03-15 1995-06-06 Seiko Epson Corporation Projection type displaying apparatus and illumination system
US5455882A (en) * 1993-09-29 1995-10-03 Associated Universities, Inc. Interactive optical panel

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5016964A (en) * 1989-10-04 1991-05-21 Spectranetics Corporation Optical fiber coupler with linear input
JPH07159721A (ja) * 1993-12-08 1995-06-23 Sony Corp プロジェクター

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212397A (en) * 1962-06-25 1965-10-19 Wendell S Miller Keystone-distortion controlling system
US5220363A (en) * 1988-09-14 1993-06-15 Casio Computer Co., Ltd. Projector
US5422691A (en) * 1991-03-15 1995-06-06 Seiko Epson Corporation Projection type displaying apparatus and illumination system
US5381502A (en) * 1993-09-29 1995-01-10 Associated Universities, Inc. Flat or curved thin optical display panel
US5455882A (en) * 1993-09-29 1995-10-03 Associated Universities, Inc. Interactive optical panel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0931275A4 *

Also Published As

Publication number Publication date
CA2305268A1 (fr) 1998-04-16
WO1998015164A2 (fr) 1998-04-16
EP0931275A4 (fr) 2000-03-01
EP0931275A1 (fr) 1999-07-28
CA2305268C (fr) 2005-12-27

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