CA2305268A1 - Optical projection apparatus and method - Google Patents

Optical projection apparatus and method Download PDF

Info

Publication number
CA2305268A1
CA2305268A1 CA002305268A CA2305268A CA2305268A1 CA 2305268 A1 CA2305268 A1 CA 2305268A1 CA 002305268 A CA002305268 A CA 002305268A CA 2305268 A CA2305268 A CA 2305268A CA 2305268 A1 CA2305268 A1 CA 2305268A1
Authority
CA
Canada
Prior art keywords
image
projection apparatus
optical projection
input surface
focus
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.)
Granted
Application number
CA002305268A
Other languages
French (fr)
Other versions
CA2305268C (en
Inventor
Leo Beiser
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA002460450A priority Critical patent/CA2460450C/en
Publication of CA2305268A1 publication Critical patent/CA2305268A1/en
Application granted granted Critical
Publication of CA2305268C publication Critical patent/CA2305268C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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

An optical system for displaying an image comprising means for illuminating an object (211) and directing the image light to a display device (205) having an input surface and an output surface. Anamorphic optical means (Ch, Cv) are disposed between the object and the input surface operative to focus one directional component of the image at the input surface and to focus a different directional component of the image at the output surface.
CA002305268A 1996-10-08 1996-10-08 Optical projection apparatus and method Expired - Fee Related CA2305268C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002460450A CA2460450C (en) 1996-10-08 1996-10-08 Optical projection apparatus and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB1996/001129 WO1998015164A2 (en) 1996-10-08 1996-10-08 Optical projection apparatus and method

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA002460450A Division CA2460450C (en) 1996-10-08 1996-10-08 Optical projection apparatus and method

Publications (2)

Publication Number Publication Date
CA2305268A1 true CA2305268A1 (en) 1998-04-16
CA2305268C CA2305268C (en) 2005-12-27

Family

ID=11004485

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002305268A Expired - Fee Related CA2305268C (en) 1996-10-08 1996-10-08 Optical projection apparatus and method

Country Status (3)

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

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
JP2007501446A (en) * 2003-05-13 2007-01-25 スクラム テクノロジーズ インコーポレイテッド Precision optical system for display panel
WO2009064467A1 (en) * 2007-11-15 2009-05-22 Tharpe Christopher S Display

Family Cites Families (7)

* 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
US5016964A (en) * 1989-10-04 1991-05-21 Spectranetics Corporation Optical fiber coupler with linear input
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
US5381502A (en) * 1993-09-29 1995-01-10 Associated Universities, Inc. Flat or curved thin optical display panel
JPH07159721A (en) * 1993-12-08 1995-06-23 Sony Corp Projector

Also Published As

Publication number Publication date
WO1998015164A3 (en) 1998-08-27
EP0931275A4 (en) 2000-03-01
EP0931275A1 (en) 1999-07-28
CA2305268C (en) 2005-12-27
WO1998015164A2 (en) 1998-04-16

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Legal Events

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EEER Examination request
MKLA Lapsed