CA2716963C - Affichage a projection - Google Patents

Affichage a projection Download PDF

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Publication number
CA2716963C
CA2716963C CA2716963A CA2716963A CA2716963C CA 2716963 C CA2716963 C CA 2716963C CA 2716963 A CA2716963 A CA 2716963A CA 2716963 A CA2716963 A CA 2716963A CA 2716963 C CA2716963 C CA 2716963C
Authority
CA
Canada
Prior art keywords
light
shielding bodies
light shielding
axis
amount
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.)
Active
Application number
CA2716963A
Other languages
English (en)
Other versions
CA2716963A1 (fr
Inventor
Motoo Takahashi
Akira Daijogo
Tomohiro Bessho
Akihiro Yamada
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.)
Seiko Epson Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority claimed from CA2631144A external-priority patent/CA2631144C/fr
Publication of CA2716963A1 publication Critical patent/CA2716963A1/fr
Application granted granted Critical
Publication of CA2716963C publication Critical patent/CA2716963C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3152—Modulator illumination systems for shaping the light beam

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Liquid Crystal (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention a trait à un affichage à projection qui permet d'exercer un contrôle permanent et aisé de la luminosité sans causer d'irrégularités de diffusion de la lumière appliquée à un modulateur de lumière en réaction à un signal vidéo. Ce contrôle permet d'afficher une image stable à contraste adéquat. Le dispositif d'affichage à projection décrit dans la présente invention comprend un modulateur de lumière (2); une source lumineuse (3a) émettant de la lumière vers le modulateur de lumière (2); une lentille intégratrice (4) montée sur un chemin optique entre la source lumineuse (3a) et le modulateur de lumière (2), laquelle uniformise la diffusion de la lumière émise par la source lumineuse (3a) vers le modulateur de lumière (2); un système de commande de la luminosité (9) placé dans le chemin optique et comprenant un mécanisme pivotant (9a) qui tourne comme des portes à deux battants pour régler la quantité de lumière émise par la source lumineuse (3a) vers le modulateur de lumière (2). Ledit mécanisme pivotant (9a) est replié en forme de V dans une direction propre à réduire la quantité de lumière (pour la bloquer).
CA2716963A 2007-06-05 2008-05-12 Affichage a projection Active CA2716963C (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2007149366 2007-06-05
JP2007-149366 2007-06-05
JP2008-032978 2008-02-14
JP2008032978A JP5100430B2 (ja) 2007-06-05 2008-02-14 投射型表示装置
CA2631144A CA2631144C (fr) 2007-06-05 2008-05-12 Affichage a projection

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA2631144A Division CA2631144C (fr) 2007-06-05 2008-05-12 Affichage a projection

Publications (2)

Publication Number Publication Date
CA2716963A1 CA2716963A1 (fr) 2008-12-05
CA2716963C true CA2716963C (fr) 2013-02-12

Family

ID=40180318

Family Applications (2)

Application Number Title Priority Date Filing Date
CA2716460A Active CA2716460C (fr) 2007-06-05 2008-05-12 Affichage a projection
CA2716963A Active CA2716963C (fr) 2007-06-05 2008-05-12 Affichage a projection

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA2716460A Active CA2716460C (fr) 2007-06-05 2008-05-12 Affichage a projection

Country Status (5)

Country Link
JP (3) JP5100430B2 (fr)
KR (1) KR100958478B1 (fr)
CN (3) CN101320201B (fr)
CA (2) CA2716460C (fr)
ES (3) ES2391867T3 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4661954B2 (ja) 2008-03-10 2011-03-30 セイコーエプソン株式会社 調光装置、照明装置及びプロジェクタ
JP5298698B2 (ja) * 2008-08-20 2013-09-25 パナソニック株式会社 投写型表示装置
JP5267250B2 (ja) * 2009-03-18 2013-08-21 セイコーエプソン株式会社 調光装置及びかかる調光装置を用いたプロジェクター用の照明装置
JP5509845B2 (ja) 2009-10-27 2014-06-04 セイコーエプソン株式会社 プロジェクター
JP5682154B2 (ja) * 2010-06-22 2015-03-11 セイコーエプソン株式会社 調光装置およびプロジェクター
JP5512484B2 (ja) * 2010-10-08 2014-06-04 三洋電機株式会社 投写型表示装置
US9703184B2 (en) 2011-08-12 2017-07-11 Seiko Epson Corporation Dimmer and projector
JP5447625B2 (ja) * 2012-09-24 2014-03-19 セイコーエプソン株式会社 プロジェクタ
DE112018007423B4 (de) * 2018-05-24 2021-07-22 Mitsubishi Electric Corporation Fahrzeuganzeigesteuervorrichtung
JP7581011B2 (ja) * 2020-10-28 2024-11-12 キヤノン株式会社 発光装置、表示装置、撮像装置、及び、電子機器
CN119644661A (zh) * 2023-09-18 2025-03-18 中强光电股份有限公司 匀光模块以及投影装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11194383A (ja) * 1997-12-26 1999-07-21 Canon Electron Inc 光量調節装置
JP2003297103A (ja) * 2002-03-29 2003-10-17 Hitachi Ltd 照明装置及びそれを用いた投射型プロジェクタ装置
JP4075509B2 (ja) * 2002-08-06 2008-04-16 セイコーエプソン株式会社 照明光学装置および照明光学装置を備えたプロジェクタ
JP4158618B2 (ja) * 2003-05-15 2008-10-01 セイコーエプソン株式会社 投射型表示装置および投射型表示装置の駆動方法
JP2005017501A (ja) * 2003-06-24 2005-01-20 Seiko Epson Corp 照明装置ならびに投射型表示装置とその駆動方法
JP4013979B2 (ja) * 2003-09-10 2007-11-28 松下電器産業株式会社 投射型表示装置
JP2006078784A (ja) * 2004-09-09 2006-03-23 Nisca Corp 光量調節装置及びこれを用いたプロジェクタ装置
US7182470B2 (en) * 2004-09-09 2007-02-27 Nisca Corporation Light amount control apparatus and projector apparatus using the same
JP4823574B2 (ja) * 2005-06-08 2011-11-24 日本電産コパル株式会社 プロジェクタ用絞り装置
JP4904741B2 (ja) * 2005-08-09 2012-03-28 株式会社日立製作所 投射型映像表示装置および遮光方法
JP5002923B2 (ja) * 2005-08-09 2012-08-15 株式会社日立製作所 投射型映像表示装置
JP4846337B2 (ja) * 2005-10-24 2011-12-28 ニスカ株式会社 光量調整装置及びこれを備えたプロジェクタ装置

Also Published As

Publication number Publication date
CA2716460A1 (fr) 2008-12-05
JP5301017B2 (ja) 2013-09-25
CN101320201B (zh) 2010-08-25
CA2716963A1 (fr) 2008-12-05
CN101825834A (zh) 2010-09-08
JP2012194578A (ja) 2012-10-11
CN101825833B (zh) 2011-12-07
JP2009015295A (ja) 2009-01-22
CN101825834B (zh) 2011-11-02
CN101825833A (zh) 2010-09-08
KR100958478B1 (ko) 2010-05-17
CA2716460C (fr) 2013-02-12
JP5496262B2 (ja) 2014-05-21
ES2391922T3 (es) 2012-12-03
JP2012226361A (ja) 2012-11-15
KR20080107277A (ko) 2008-12-10
ES2391493T3 (es) 2012-11-27
CN101320201A (zh) 2008-12-10
ES2391867T3 (es) 2012-11-30
JP5100430B2 (ja) 2012-12-19

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Legal Events

Date Code Title Description
EEER Examination request
W00 Other event occurred

Free format text: ST27 STATUS EVENT CODE: A-4-4-W10-W00-W100 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: LETTER SENT

Effective date: 20251022

H13 Ip right lapsed

Free format text: ST27 STATUS EVENT CODE: N-4-6-H10-H13-H100 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE FEE AND LATE FEE NOT PAID BY DEADLINE OF NOTICE

Effective date: 20260203

W00 Other event occurred

Free format text: ST27 STATUS EVENT CODE: N-6-6-W10-W00-W100 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: LETTER SENT

Effective date: 20260204