JP2004138989A - Shutter for projector - Google Patents

Shutter for projector Download PDF

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Publication number
JP2004138989A
JP2004138989A JP2002335806A JP2002335806A JP2004138989A JP 2004138989 A JP2004138989 A JP 2004138989A JP 2002335806 A JP2002335806 A JP 2002335806A JP 2002335806 A JP2002335806 A JP 2002335806A JP 2004138989 A JP2004138989 A JP 2004138989A
Authority
JP
Japan
Prior art keywords
shutter
switch
video
fade
projector
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.)
Pending
Application number
JP2002335806A
Other languages
Japanese (ja)
Inventor
Takeshi Okuda
奥田 健
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.)
OKUDA ILLUMICA KK
Original Assignee
OKUDA ILLUMICA KK
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 OKUDA ILLUMICA KK filed Critical OKUDA ILLUMICA KK
Priority to JP2002335806A priority Critical patent/JP2004138989A/en
Publication of JP2004138989A publication Critical patent/JP2004138989A/en
Pending legal-status Critical Current

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  • Projection Apparatus (AREA)
  • Liquid Crystal (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shutter externally attached to a liquid crystal projector and the like by which light leakage is eliminated at the time of switch-off and natural fade-in/fade-out can be performed by opening and closing the shutter using a switch and the like as the need arises. <P>SOLUTION: By turning on a remote switch (8), a covering plate (5) with a flexible arm for a shutter is moved from a closed position to an opened position to make it possible to project a video and the video is faded in on a screen and the like if an another video is projected on the screen. By turning off the remote switch, the covering plate is moved and stopped in a closed position while fading out the video from the opened position to reliably eliminate the light leakage. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
プロジェクター等において、暗転中に映像等が無信号または黒味を出力しても、スクリーンにうっすらとあかり漏れが起こるという状態を排除し、必要に応じて迅速なシャッター開閉を行い、より高い演出効果を可能にした装置に関するものである。
【0002】
【従来の技術】
従来液晶プロジェクター等において暗転時には、レンズにレンズキャップや遮へい物を手動で配しあかり濡れ等を防止、又はプロジェクター等の電源を切っていた。
【0003】
【発明が解決しようとする課題】
これはつぎのような欠点があった。
液晶プロジェクター等が手の届かない位置にある場合、複数台を使用する場合等はあかり漏れに甘んじるしかなく、又手動で遮へいした場合、振動による映像揺れ等危険性も生まれる。さらに電源を切ろうとすると、「もう一度押すと電源が切れます」等のサインがスクリーンに出たり、いきなりコンセントを抜く事により、メタルハランド光源等が短命になったり、破損する場合もあった。
本発明は、以上のような欠点を失くすためになされたものである。
【0004】
【課題を解決するための手段】
本体(1)内にDCモーター等(2)カム(3)アーム取り付板(4)を設ける。
アーム取り付板にフレキシブル・アーム付遮へい板(5)取り付け、カムにマイクロスイッチ(6)(7)が90度の角度で接触するように設け、本体外にリモートスイッチ(8)を設ける。
本発明は、以上の構成よりなるプロジェクター用シャッターである。
【0005】
【発明の実施の形態】
以下、本発明の実施の形態について説明する。
リモートスイッチ(8)を入れる事により、DCモーター(2)が右回転し
【図1】位置にあり、映像をもしくは漏れあかりを遮断していた、フレキシブル・アーム付遮へい板(5)が
【図2】位置へと移動、映像投影を可能にし、
【図1】位置にあったカム(3)も右回転しマイクロスイッチ(6)に接触、モーターの回転を停止させ、遮へい板も
【図2】位置で停止する。
その時映像が予め投影されていれば、スクリーン等にフェードインする。
また、リモートスイッチを切る事により、遮へい板は
【図2】位置よりフェードアウトしながら、
【図1】位置に移動・停止しあかり漏れを確実になくす。
【0006】
【発明の効果】
(イ)必要に応じスイッチ等でシャッターを開閉する事により、あかり漏れを無くし、より高い演出効果を可能にする。
(ロ)映像の自然なフェードイン・フェードアウトが出来る。
【図面の簡単な説明】
【図1、2】本発明の斜視図である。
【図3、4】本発明の内部詳細図である。
【符号の説明】
1 本体
2 DCモーター等
3 カム
4 アーム取り付板
5 フレキシブル・アーム付遮へい板
6.7 マイクロスイッチ
8 リモートスイッチ
[0001]
TECHNICAL FIELD OF THE INVENTION
In projectors, etc., even if images or the like output no signal or blackness during darkness, it eliminates the situation that light is leaking slightly on the screen, and quick opening and closing of the shutter is performed as needed, resulting in a higher effect The present invention relates to a device that has made it possible.
[0002]
[Prior art]
Conventionally, at the time of darkening in a liquid crystal projector or the like, a lens cap or a shielding object is manually placed on a lens to prevent light from getting wet or to turn off the power of the projector or the like.
[0003]
[Problems to be solved by the invention]
This had the following disadvantages.
When a liquid crystal projector or the like is out of reach, or when a plurality of projectors are used, there is no choice but to avoid the leakage of light, and if the light is manually shielded, there is a risk that the image may be shaken due to vibration. Furthermore, when trying to turn off the power, a sign such as "Press again to turn off the power" appears on the screen, or suddenly unplugging the outlet may shorten the life of the metal halland light source or cause damage.
The present invention has been made to eliminate the above disadvantages.
[0004]
[Means for Solving the Problems]
A main body (1) is provided with a DC motor and the like (2) a cam (3) an arm mounting plate (4).
A shield plate (5) with a flexible arm is attached to the arm mounting plate, micro switches (6) and (7) are provided so as to contact the cam at an angle of 90 degrees, and a remote switch (8) is provided outside the main body.
The present invention is a projector shutter having the above configuration.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described.
When the remote switch (8) is turned on, the DC motor (2) rotates clockwise (Fig. 1), and the shield plate (5) with the flexible arm, which is blocking the image or leak light, is shown in the figure. 2) Move to the position, enable video projection,
FIG. 1 shows that the cam (3) at the position also rotates clockwise and contacts the microswitch (6), stops the rotation of the motor, and the shielding plate also stops at the position shown in FIG.
At that time, if the image is projected in advance, the image fades in on a screen or the like.
Also, by turning off the remote switch, the shielding plate fades out from the [Fig.
FIG. 1 Moves and stops at a position to reliably eliminate light leakage.
[0006]
【The invention's effect】
(A) By opening and closing the shutter with a switch or the like as needed, light leakage is eliminated, and a higher performance effect is enabled.
(B) Natural fade-in and fade-out of images can be performed.
[Brief description of the drawings]
1 and 2 are perspective views of the present invention.
3 and 4 are detailed internal views of the present invention.
[Explanation of symbols]
1 Body 2 DC motor etc. 3 Cam 4 Arm mounting plate 5 Shield plate with flexible arm 6.7 Micro switch 8 Remote switch

Claims (2)

液晶プロジェクター等に外付けでシャッターを設け、必要に応じスイッチ等で開閉する事により、あかり漏れを無くす事を特徴とする、プロジェクター用シャッター。A shutter for projectors, which is equipped with a shutter external to the liquid crystal projector, etc., and is opened and closed by a switch, etc., as needed, to eliminate light leakage. 前記の装置において、開閉方向及び開閉範囲をレンズ面から90度と平行間を回転移動する事により、自然なフェードイン・フェードアウトが出来ることを特徴とした、請求項1記載のプロジェクター用シャッター。2. The projector shutter according to claim 1, wherein a natural fade-in / fade-out is achieved by rotating the opening / closing direction and the opening / closing range between the lens surface and the parallel direction at 90 degrees.
JP2002335806A 2002-10-15 2002-10-15 Shutter for projector Pending JP2004138989A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002335806A JP2004138989A (en) 2002-10-15 2002-10-15 Shutter for projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002335806A JP2004138989A (en) 2002-10-15 2002-10-15 Shutter for projector

Publications (1)

Publication Number Publication Date
JP2004138989A true JP2004138989A (en) 2004-05-13

Family

ID=32462588

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002335806A Pending JP2004138989A (en) 2002-10-15 2002-10-15 Shutter for projector

Country Status (1)

Country Link
JP (1) JP2004138989A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012014073A (en) * 2010-07-02 2012-01-19 Sanyo Electric Co Ltd Projection-type video display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012014073A (en) * 2010-07-02 2012-01-19 Sanyo Electric Co Ltd Projection-type video display device

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