JPH0235489A - Overhead projector - Google Patents

Overhead projector

Info

Publication number
JPH0235489A
JPH0235489A JP63184653A JP18465388A JPH0235489A JP H0235489 A JPH0235489 A JP H0235489A JP 63184653 A JP63184653 A JP 63184653A JP 18465388 A JP18465388 A JP 18465388A JP H0235489 A JPH0235489 A JP H0235489A
Authority
JP
Japan
Prior art keywords
original
liquid crystal
image
projected
screen
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
JP63184653A
Other languages
Japanese (ja)
Inventor
Masahiko Nakamura
雅彦 中村
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.)
Mitsubishi Mining and Cement Co Ltd
Original Assignee
Mitsubishi Mining and Cement Co Ltd
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 Mining and Cement Co Ltd filed Critical Mitsubishi Mining and Cement Co Ltd
Priority to JP63184653A priority Critical patent/JPH0235489A/en
Publication of JPH0235489A publication Critical patent/JPH0235489A/en
Pending legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE:To eliminate limits to an original and magnification modification by copying an original by means of an image pickup device and projecting an image displayed on transparent liquid crystal. CONSTITUTION:A video of the original 8 photographed by a CCD camera 1 is displayed on the transparent liquid crystal display 4 through an image processor 3, and by projecting light from a light source 5 on the video, the contents identical to the original 8 are projected on a screen 7 through a focus lens 6. In such a way, a variety of such projection limits can be eliminated: a real thing other than an ordinary original and an opaque original are projected, a video magnification is modified with a distance between the screen and the projector fixed, and videos from other devices such as a television receiver are projected.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は、電子式オーバーヘッドプロジェクタ−に関す
る。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electronic overhead projector.

[従来の技術] 従来、オーバーへラドブロンエフターの構造は、第1図
に示すように、投光機5とフォーカスレンズ6との間に
透明フィルム上に描かれた原稿8を配置する構造であり
、透明フィルム上に描かれた原稿の下より光を当てるこ
とによりスクリーン7上に原稿を映し出していた。
[Prior Art] Conventionally, as shown in FIG. 1, the structure of the Overherdron Efter is such that a document 8 drawn on a transparent film is placed between a projector 5 and a focus lens 6. The original was projected onto the screen 7 by shining light from below the original drawn on a transparent film.

[発明が解決しようとする問題点] 上記の構造のオーバーヘッドプロジェクタ−装置では、
原稿に透明フィルムに描かれたもの以外の使用ができな
かったが、本発明は、透明フィムル以外のものでも使用
できる電子式オーバーヘッドプロジェクタ−装置を提供
することを目的とする。また、従来の構造では、装置と
スクリーンとの間の距離を固定したままでは、スクリー
ン上に映す倍率を変えることができなかったので、本発
明は、原稿の倍率に対する制限なしに、便宜性、有益性
にすぐれたオーバーヘッドプロジェクタ−装置を提供す
ることを目的にする。従って、本発明は、オーバーヘッ
ドプロジェクタ−において、撮像装置と透明デスプレイ
を内蔵させることにより、不透明な原稿の投写を可能に
するオーバーへ7ドブロジエクター装置を提供すること
を目的にする。
[Problems to be solved by the invention] In the overhead projector device having the above structure,
However, it is an object of the present invention to provide an electronic overhead projector device that can be used with materials other than transparent films. Furthermore, in the conventional structure, it was not possible to change the magnification of the image displayed on the screen while the distance between the device and the screen was fixed. It is an object of the present invention to provide an overhead projector device that is highly useful. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an overhead projector device that is capable of projecting an opaque document by incorporating an imaging device and a transparent display.

[問題点を解決するための手段] 本発明の要旨とするものは、原稿を写し取る撮像装置と
画像処理装置、その画像を写す半透明の液晶デスプレイ
とその液晶デスプレイ上の画像を投影する光源とを設け
た電子式オーバーへ・7ドブロジエクターである。
[Means for Solving the Problems] The gist of the present invention is to provide an imaging device and an image processing device for copying a document, a translucent liquid crystal display for projecting the image, and a light source for projecting the image on the liquid crystal display. It is an electronic overload/7-dobrogiator equipped with a.

本発明は、オーバーヘッドプロジェクタ−装置において
、電子方式を用いた構造である。即ち、撮像装置と撮像
装置の出力を処理する装置、原稿を映し出す透明デイプ
レイを付加し、投光機とフォーカスレンズの間に透明デ
スプレイを配置したものである。
The present invention is an overhead projector device that uses an electronic system. That is, an imaging device, a device for processing the output of the imaging device, and a transparent display for displaying the original are added, and the transparent display is placed between the projector and the focus lens.

[作用] 原稿を撮像装置で写し、透明液晶上に写し出した画像を
投光機でプロジェクトした画像を得ることことにより、
原稿に対する透明性の必要など制限なく、また、スクリ
ーンと装置との距離を固定したままで画像倍率を変える
ことのできるオーバーヘッドプロジェクタ−を提供した
[Operation] By capturing the original with an imaging device and projecting the image onto a transparent liquid crystal using a projector,
To provide an overhead projector that can change the image magnification without any restrictions such as the need for transparency with respect to a document, and while keeping the distance between the screen and the device fixed.

次に、本発明の電子式オーバーヘッドプロジェクタ−に
ついて実施例により説明するが、本発明は、次の実施例
のものに限定きれるものではない。
Next, an electronic overhead projector according to the present invention will be explained using examples, but the present invention is not limited to the following examples.

[実施例] 第2図は、本発明の実施例を示すオーバーヘッドプロジ
ェクタ−構造を示す構造説明図である。
[Embodiment] FIG. 2 is a structural explanatory diagram showing an overhead projector structure showing an embodiment of the present invention.

ズームレンズ1の後に、CCDカメラ2を配置し、CC
Dカメラ2の出力は、画像処理装置3に接続する。更に
、画像処理装置3の出力は、液晶デイスプレィ4に接続
する。また、液晶デスプレイ4は、光源(投光機)5と
ファーカスレンズ6との間に配置する。
A CCD camera 2 is placed after the zoom lens 1, and the CC
The output of the D camera 2 is connected to an image processing device 3. Furthermore, the output of the image processing device 3 is connected to a liquid crystal display 4. Further, the liquid crystal display 4 is arranged between a light source (projector) 5 and a focus lens 6.

CCDカメラ1によって写し取られた映像は、画像処理
装置3を経て、透明液晶デイスプレィ4上に表示される
。この映像に光を当てることにより、スクリーン7の上
に原稿と同じ内容を映し出す。
The image captured by the CCD camera 1 passes through an image processing device 3 and is displayed on a transparent liquid crystal display 4. By shining light on this image, the same content as the original is projected on the screen 7.

以上のように、本発明の電子式オーバーヘッドプロジェ
クタ−装置では、原稿をビデオカメラに写し取り透明デ
イスプレィ上に表示し、投光機によってスクリーン上に
映し出す構造としたものであり、普通の紙に描かれた原
稿のように不透明な原稿を映し出すこと、原稿以外の実
物を映し出すこと、スクリーンと装置との距離を固定し
たまま映し出す倍率を変えること、映し出す映像に処理
を加えること、他の装置からの映像を映し出すこと、例
えば、テレビ受信機、ビデオ再生装置から映像を映し出
すことが可能になる。
As described above, the electronic overhead projector device of the present invention has a structure in which an original is copied onto a video camera, displayed on a transparent display, and projected onto a screen using a projector. Projecting an opaque original such as a printed original, Projecting an actual object other than the original, Changing the projection magnification while keeping the distance between the screen and the device fixed, Adding processing to the projected image, It becomes possible to display images, for example, from a television receiver or a video playback device.

[発明の効果コ 本発明のオーバーヘッドプロジェクタ−は、第1に、原
稿に対する制限と倍率変更に対する制限を除去でき、使
用勝手のよい装置を提供できたこと、 第2に、従って、便宜よく、便益性にすぐれたオーバー
ヘッドプロジェクタ−を提供できたことなどの顕著な技
術的効果が得られた。
[Effects of the Invention] First, the overhead projector of the present invention can eliminate restrictions on original documents and changes in magnification, and can provide an easy-to-use device. Remarkable technical effects such as being able to provide an overhead projector with excellent performance were obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は、従来のオーバーヘッドブロジエククーの構造
図である。 第2図は、本発明による電子式オーバーヘラドブ[jジ
ェノターの斜視図である。 [主要部分の符号の説明] 、レンズ  2.、、、CODカメラ 、画像処理装置 、透明液晶デイスプレィ 、光源(投光機) 、レンズ  7.、、、スクリーン 、原稿 特許出願人 三菱鉱業セメント株式会社代理人 弁理士
  倉 持  裕 第2図
FIG. 1 is a structural diagram of a conventional overhead blog. FIG. 2 is a perspective view of an electronic overherder dove according to the present invention. [Explanation of symbols of main parts] Lens 2. , , COD camera, image processing device, transparent liquid crystal display, light source (projector), lens 7. ,,,Screen, Manuscript Patent Applicant Mitsubishi Mining and Cement Co., Ltd. Agent Patent Attorney Hiroshi Kuramochi Figure 2

Claims (1)

【特許請求の範囲】[Claims] 原稿を写し取る撮像装置と画像処理装置、その画像を写
す半透明の液晶デスプレイとその液晶デスプレイ上の画
像を投影する光源とを設けたことを特徴とする電子式オ
ーバーヘッドプロジェクター。
An electronic overhead projector characterized by being equipped with an imaging device for copying a document, an image processing device, a translucent liquid crystal display for projecting the image, and a light source for projecting the image on the liquid crystal display.
JP63184653A 1988-07-26 1988-07-26 Overhead projector Pending JPH0235489A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63184653A JPH0235489A (en) 1988-07-26 1988-07-26 Overhead projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63184653A JPH0235489A (en) 1988-07-26 1988-07-26 Overhead projector

Publications (1)

Publication Number Publication Date
JPH0235489A true JPH0235489A (en) 1990-02-06

Family

ID=16157002

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63184653A Pending JPH0235489A (en) 1988-07-26 1988-07-26 Overhead projector

Country Status (1)

Country Link
JP (1) JPH0235489A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0736116A (en) * 1993-07-19 1995-02-07 Nippon Avionics Co Ltd Overhead projector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0736116A (en) * 1993-07-19 1995-02-07 Nippon Avionics Co Ltd Overhead projector

Similar Documents

Publication Publication Date Title
US7746401B2 (en) Method for adjusting image display range of a document camera
CN1299496C (en) Video outputting method and digital camera
JPH05260352A (en) Video camera
JPH0682748A (en) Projection image pickup device
JPH01147970A (en) Prompter
DK0940711T3 (en) Apparatus for alternatively or simultaneously capturing photographic images and video images or polyvalent camera
JPH0235489A (en) Overhead projector
JPH0376384A (en) Interchangeable lens
JPH04326264A (en) Output system for video camera
JP2000138856A5 (en)
JPS61122623A (en) Projecting device
JP2004252118A (en) Method and device for downloading video to personal computer by composing projected picture and handwritten picture by liquid crystal projector incorporating camera function
JPS603616A (en) Overhead projector
KR960043777A (en) Still camera integrated video camera
Mattsson Projection of cineroentgen film by a TV system
JPH0530850U (en) Overhead Projector
KR970056963A (en) Still Camera All-in-one Video Camera
JPH0544227B2 (en)
JPH03166870A (en) Video camera with function for correcting field motion
JPH0248871A (en) Photographic film player
JPH04168432A (en) Method and device for photographing
JP2995677B2 (en) Overhead projector
JPH0419077U (en)
JPS6413530A (en) Visual field expanded type camera for finder
JPS62249180A (en) Projector