DE10345370A1 - Projection apparatus for television device, senses positional offsets in individual opto-mechanical elements and corrects accordingly - Google Patents

Projection apparatus for television device, senses positional offsets in individual opto-mechanical elements and corrects accordingly Download PDF

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Publication number
DE10345370A1
DE10345370A1 DE2003145370 DE10345370A DE10345370A1 DE 10345370 A1 DE10345370 A1 DE 10345370A1 DE 2003145370 DE2003145370 DE 2003145370 DE 10345370 A DE10345370 A DE 10345370A DE 10345370 A1 DE10345370 A1 DE 10345370A1
Authority
DE
Germany
Prior art keywords
mechanical elements
projection apparatus
television device
positional offsets
individual opto
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.)
Withdrawn
Application number
DE2003145370
Other languages
German (de)
Inventor
Ingo Klemm
Axel Krause
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.)
Jenoptik AG
Original Assignee
Carl Zeiss Jena GmbH
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 Carl Zeiss Jena GmbH filed Critical Carl Zeiss Jena GmbH
Priority to DE2003145370 priority Critical patent/DE10345370A1/en
Publication of DE10345370A1 publication Critical patent/DE10345370A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/003—Alignment of optical elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • H04N5/7458—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being an array of deformable mirrors, e.g. digital micromirror device [DMD]

Abstract

An illumination lens illuminates an image-forming element, preferably with digital micro-mirror devices (DMD). A projection lens (4,5) focuses an image on a projection surface. The projection lens and an illumination lens are arranged in a common housing or in connected sub-housings. At least one sensor unit (3) is provided for detecting positional offsets of individual opto mechanical elements that change the image quality. The sensor unit is connected to a control unit for position correction.
DE2003145370 2003-09-26 2003-09-26 Projection apparatus for television device, senses positional offsets in individual opto-mechanical elements and corrects accordingly Withdrawn DE10345370A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2003145370 DE10345370A1 (en) 2003-09-26 2003-09-26 Projection apparatus for television device, senses positional offsets in individual opto-mechanical elements and corrects accordingly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003145370 DE10345370A1 (en) 2003-09-26 2003-09-26 Projection apparatus for television device, senses positional offsets in individual opto-mechanical elements and corrects accordingly

Publications (1)

Publication Number Publication Date
DE10345370A1 true DE10345370A1 (en) 2005-04-28

Family

ID=34399068

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2003145370 Withdrawn DE10345370A1 (en) 2003-09-26 2003-09-26 Projection apparatus for television device, senses positional offsets in individual opto-mechanical elements and corrects accordingly

Country Status (1)

Country Link
DE (1) DE10345370A1 (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4692808A (en) * 1986-09-02 1987-09-08 Ford Aerospace & Communications Corporation Passively modulated push broom display
US4793699A (en) * 1985-04-19 1988-12-27 Canon Kabushiki Kaisha Projection apparatus provided with an electro-mechanical transducer element
DE4424947A1 (en) * 1993-07-14 1995-01-19 Sony Corp Projection device
US5402184A (en) * 1993-03-02 1995-03-28 North American Philips Corporation Projection system having image oscillation
DE4339908A1 (en) * 1993-11-23 1995-05-24 Schneider Rundfunkwerke Ag Method and device for pyramidal error compensation
DE19544067A1 (en) * 1995-11-25 1996-05-15 Dirk Meyer Video projection method using moving mirror
EP0887681A2 (en) * 1997-06-26 1998-12-30 Xerox Corporation Fault tolerant projective display having redundant light modulators
US6091461A (en) * 1997-08-14 2000-07-18 Sony Corporation Electronically self-aligning high resolution projection display with rotating mirrors and piezoelectric transducers
US6317171B1 (en) * 1997-10-21 2001-11-13 Texas Instruments Incorporated Rear-screen projection television with spatial light modulator and positionable anamorphic lens
US20030179435A1 (en) * 2002-03-22 2003-09-25 Nec Viewtechnology, Ltd. Digital mirror device projector and method of controlling amount of light being used in digital mirror device projector

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4793699A (en) * 1985-04-19 1988-12-27 Canon Kabushiki Kaisha Projection apparatus provided with an electro-mechanical transducer element
US4692808A (en) * 1986-09-02 1987-09-08 Ford Aerospace & Communications Corporation Passively modulated push broom display
US5402184A (en) * 1993-03-02 1995-03-28 North American Philips Corporation Projection system having image oscillation
DE4424947A1 (en) * 1993-07-14 1995-01-19 Sony Corp Projection device
DE4339908A1 (en) * 1993-11-23 1995-05-24 Schneider Rundfunkwerke Ag Method and device for pyramidal error compensation
DE19544067A1 (en) * 1995-11-25 1996-05-15 Dirk Meyer Video projection method using moving mirror
EP0887681A2 (en) * 1997-06-26 1998-12-30 Xerox Corporation Fault tolerant projective display having redundant light modulators
US6091461A (en) * 1997-08-14 2000-07-18 Sony Corporation Electronically self-aligning high resolution projection display with rotating mirrors and piezoelectric transducers
US6317171B1 (en) * 1997-10-21 2001-11-13 Texas Instruments Incorporated Rear-screen projection television with spatial light modulator and positionable anamorphic lens
US20030179435A1 (en) * 2002-03-22 2003-09-25 Nec Viewtechnology, Ltd. Digital mirror device projector and method of controlling amount of light being used in digital mirror device projector

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee