【発明の詳細な説明】
【発明の名称】折畳式携帯デジタルプロジェクタ−
【技術分野】
【０００１】
本発明は電子画像を利用した映写機で電子機器分野に属する。
【背景技術】
【０００２】
従来は部品全体を比較的平坦な匡体の中に納め、被写体は匡体の上部に設けたステ−ジに被写体を置いてステ−ジ面を匡体内部に設けたＣＣＤカメラで写す方式と、ＣＣＤカメラを匡体から離した上部に置き被写体を上部から捉える方式が有ったが何れも投影部分は机上に置かれた匡体内に有って映写されるスクリ−ン下端が机上面の高さに過ぎず、映写される画面の下部が見え難く補助の台を用いて全体を高い位置に上げるかアオリと称する映写機を傾けての映写をして居た。
【０００３】
図２は此の状況に在る映写機を示す、ＣＣＤカメラを匡体内に持つ機器に於いては映写する原稿を裏返してステ−ジに載せるという操作を必要とし映写中は原稿に触れる事が出来無い。また実物映写もステ−ジ側が映写される事で著しい制限を受けていた。これを避ける方式として撮像部を分離した機器も在るが投影位置が低いという問題は残り映写機台の使用は避けられ無かった。
【考案の開示】
【発明が解決しようとする課題】
【０００４】
大会場などで講演者と機器操作者が別で有る場合は従来の方式でも映写機器を高い台の上に乗せる事で問題は解決するが機器を支える台が視野を遮ると言う好ましくない事態を招く。次いで見える侭を写す正立正像方式は光学系のみでは複雑な長い光路を要し通過する光の損失を起こして画面が暗くなると言う致命的な障害が起きる。
【課題を解決するための手段】
【０００５】
映写するに当たって映写レンズの光軸を高い位置に取れば機器を台の上に上げる必要も無くなるが全体が大きくなり据置式とせざるを得ない。
映写時に光軸を高く出来る方法として折畳み式の支持脚を本体の左右に設け映写時には脚を用いて本体を挙げ、収納時には脚を畳む事で従来の映写機と同等な寸法に納めた。
【発明の効果】
【０００６】
本発明に於いてはＯＨＰ方式の如くに原稿が透明で有る必要は無く、通常の紙面に記した原稿、又書籍の類もステ−ジに置いて、見た侭がスクリ−ンに映写でき且つ映写中も自由に映写画面に指示等の介入が可能と成った。別しての効果は従来の実物投影機等に比してスクリ−ン面でＯＨＰ並の明るさを持てる事で室内を暗室とせず画像を視認出来る利点がある。
【発明を実施するための最良の形態】
【０００７】
図１は此の構成に依るステ−ジとなる基準台１−１と、支持脚に当たる構造物１−２、光学系を納めたヘッド部１−３から成る。
１−１のステ−ジは上部の重量を支える強度と机上に据えられる丈の精度が有れば良く、１−３のヘッド部は内部に光学系を持ち映写の電力はステ−ジ下部または１−２の支持脚内に設けた電源部及び制御部から供給される。更に実施に当たっては被写体を置く向きと投影方向を一致させ、見た侭がスクリ−ン上の画像と成る光学系とし、従来の如きＯＨＰ式に資料を投影方向と逆に置く必要を無くし使い勝手を改良した。
投影方向と被写体の方向の一致は従来のＯＨＰ式映写機では非常に複雑な光学系を要し実用に至らなかったが、本発明では電気信号を切り替える事で此の方式を完成し、同様な切替え操作でＯＨＰ式の投影も可能である。
【実施例１】
【０００８】
実施例１ではデジタルカメラの表示部と同一画素数の液晶投影機とし制御部を省略した。撮像部としてデジタルカメラを其の侭用いるので配置に依ってはデジタルカメラの映像が逆転し、図３の例で示す様な光学系で補正を行いスクリ−ン画面とデジタルカメメラ画面の整合を行う必要を生じる。デジタルカメラレンズが直接ステ−ジに向かう時、若しくは外部撮像装置を用いる時、整合光学系は不要と成る。
【実施例２】
【０００９】
本発明をより簡略化する目的で映写装置はデジタル表示装置のみを内蔵し、他の機器からの入力を受けて映写出来る為のインタ−フェ−スを用意しこれに接続する方式とした。撮像機としてデジタル撮像機を用い、内部に撮像装置を持たないため投影装置の配置位置と画面整合に制限がなく簡素化が可能と成った。構成は図１でのカメラ部を欠く形態と成る。
【図面の簡単な説明】
【００１０】
【図１】本発明に於ける映写装置全体の機構の概略を示す。
【図２】従来の映写機の映写状況を示す。
【図３】補正光学系を示す。Detailed Description of the Invention
[Title of the Invention] Folding Portable Digital Projector-
【Technical field】
[0001]
The present invention relates to a projector using an electronic image and belongs to the field of electronic equipment.
【Background technology】
[0002]
In the past, the entire part was housed in a relatively flat housing, and the subject was placed on a stage provided on the top of the housing and photographed with a CCD camera provided with a stage surface inside the housing. There was a method of placing the CCD camera at the top away from the housing and capturing the subject from the top, but in any case the projected part is projected from within the housing placed on the desk and the lower end of the screen is the desktop It was only the height, and the lower part of the screen to be projected was difficult to see, and the projector was projected by raising the whole to a high position using an auxiliary platform or tilting the projector called "Airi".
[0003]
Fig. 2 shows the projector in the situation of a bird's-eye view. In an apparatus having a CCD camera in the housing, it is necessary to reverse the document to be projected and put it on the stage, and the document can be touched during projection. There is not. The actual projection was also severely restricted by the stage's projection. There are also devices that separate the imaging unit as a method to avoid this, but the problem that the projection position is low remains in the use of the projector stand.
[Disclosure of the invention]
[Problems to be solved by the invention]
[0004]
If the speaker and the equipment operator are different in a large venue etc., the problem is solved by putting the projection equipment on a high stand by the conventional method, but it is not preferable that the stand supporting the equipment blocks the view Invite. Then, the erecting right image system which takes a picture of the eyelid to be seen requires a complicated long optical path only with the optical system, causing a loss of passing light and causing a fatal obstacle that the screen becomes dark.
[Means for Solving the Problems]
[0005]
If the optical axis of the projection lens is set to a high position for projection, there is no need to raise the device on the table, but the whole becomes large and it must be stationary.
As a method to increase the optical axis at the time of projection, folding support legs are provided on the left and right of the main body. At projection, the main body is mentioned using the legs, and when stored, it is folded to the same size as the conventional projector by folding the legs.
【Effect of the invention】
[0006]
In the present invention, it is not necessary for a document to be transparent as in the OHP method, and a document written on a normal sheet or a book may be placed on a stage, and the viewed wrinkles can be projected on the screen. And even during projection, intervention such as instruction on the projection screen became possible freely. The other effect is that the brightness can be as high as OHP on the screen surface as compared with the conventional real projector, etc., and there is an advantage that the room can not be made a dark room and the image can be viewed.
BEST MODE FOR CARRYING OUT THE INVENTION
[0007]
FIG. 1 is composed of a reference base 1-1, which is a stage according to the configuration of the eyelid, a structure 1-2 corresponding to a support leg, and a head section 1-3 containing an optical system.
The stage of 1-1 should have the strength to support the weight of the upper part and the accuracy of the height to be placed on the desk, the head part of 1-3 should have the optical system inside, and the projection power would be the lower part of the stage or It is supplied from a power supply unit and a control unit provided in the 1-2 support legs. Furthermore, in the implementation, the direction in which the subject is placed matches the projection direction, and the viewed light is an optical system consisting of an image on the screen, eliminating the need to place the data in the opposite direction to the projection direction in the conventional OHP system. It improved.
The coincidence between the projection direction and the direction of the object requires a very complicated optical system in the conventional OHP projectors and has not been put to practical use in the present invention. OHP projection is also possible by operation.
[Example 1]
[0008]
In the first embodiment, the liquid crystal projector has the same number of pixels as the display unit of the digital camera, and the control unit is omitted. Since a digital camera is used as an image pickup unit, the image of the digital camera is reversed depending on the arrangement, correction is performed by an optical system as shown in the example of FIG. 3, and alignment of the screen with the digital camera screen is performed. Create a need to do. When the digital camera lens goes directly to the stage, or when using an external imaging device, no alignment optics are required.
Second Embodiment
[0009]
In order to further simplify the present invention, the projector has a built-in digital display only, and prepares and connects an interface for receiving an input from another device and projecting. Since a digital image pickup device is used as an image pickup device and the image pickup device is not provided inside, the arrangement position of the projection device and the screen alignment can be simplified without restriction. The configuration is a form that lacks the camera unit in FIG.
Brief Description of the Drawings
[0010]
FIG. 1 shows an outline of the mechanism of the whole projection apparatus in the present invention.
FIG. 2 shows the projection situation of a conventional projector.
FIG. 3 shows a correction optical system.