JPS603616A - Overhead projector - Google Patents

Overhead projector

Info

Publication number
JPS603616A
JPS603616A JP11153683A JP11153683A JPS603616A JP S603616 A JPS603616 A JP S603616A JP 11153683 A JP11153683 A JP 11153683A JP 11153683 A JP11153683 A JP 11153683A JP S603616 A JPS603616 A JP S603616A
Authority
JP
Japan
Prior art keywords
receiver
picture
display element
surface display
video
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
JP11153683A
Other languages
Japanese (ja)
Inventor
Kazuya Hasegawa
長谷川 和彌
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.)
Nikon Corp
Original Assignee
Nikon Corp
Nippon Kogaku 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 Nikon Corp, Nippon Kogaku KK filed Critical Nikon Corp
Priority to JP11153683A priority Critical patent/JPS603616A/en
Publication of JPS603616A publication Critical patent/JPS603616A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/132Overhead projectors, i.e. capable of projecting hand-writing or drawing during action

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)

Abstract

PURPOSE:To magnify and project an original mentioned on usual paper, too, by providing a television receiver for displaying a video caught by a television camera on a transmission type surface display element, and a projecting optical device for projecting this video on a screen. CONSTITUTION:An object to be photographed 4 is photographed by a TV camera 1, and its video is converted to a time series electric signal, and transmitted to a TV receiver 2 by a wired cable or a radio. The receiver 2 usually has a transmission type surface display element 2a instead of the cathode ray tube of a TV receiver, formed by many picture elements, an electro-optical element such as a liquid crystal element, etc. is incorporated in each picture element, the quantity of a light source light transmitting through each picture element can be controlled by controlling an electric signal supplied to each picture element by driving an X-Y matrix, and as a result, a static picture or a dynamic picture can be displayed on the transmission type surface display element 2a.

Description

【発明の詳細な説明】 (発明の技術分野) 本発明は新規なオーバーヘッドプロジェクタ−更に詳し
くは不透明な原稿、立体的な物体等の被写体でも投影ハ
S可能なオーバーヘッドプロジェクタ−に関するもので
ある。
DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to a novel overhead projector, and more particularly to an overhead projector capable of projecting objects such as opaque originals and three-dimensional objects.

(発明の背景) オーバーヘッドプロジェクタ−は、小さな原稿音大きな
スクリーン上に投影し、それにより一度に多数の人々に
原稿の内容を見せることができるものであるが、従来の
オーバーヘッドプロジェクタ−は原稿として透明なシー
ト(トランスペアレンジ−)に記載された原稿しか使用
できないという欠点を有し′ていた。
(Background of the Invention) An overhead projector projects the sound of a small original onto a large screen, thereby making it possible to show the contents of the original to many people at once. It had the disadvantage that only manuscripts written on transparent sheets (transparent range) could be used.

(発明の目的) 本発明の目的は、このような欠点全解消し、普通紙に記
載された原稿、その他車、写真、物体等もそのままスク
リーン上に明るく拡大して投影できるオーバーヘッドプ
ロジェクタ−を提供することにある。
(Objective of the Invention) The object of the present invention is to provide an overhead projector that can eliminate all of these drawbacks and project original documents written on plain paper, other cars, photographs, objects, etc. onto the screen brightly and enlarged. It's about doing.

(発明の概要) 本発明は、原稿等の被写体を撮影するテレビカメラ(1
)と、該カメラでとらえた映像を透過型面表示素子上に
表示するテレビ受像機(2)と、該表示孝子上に表示さ
れた映像全投影する光学投影装置(3)とから成ること
全特徴とするオーバーヘッドプロジェクタ−全提供する
(Summary of the Invention) The present invention provides a television camera (1
), a television receiver (2) that displays the image captured by the camera on a transmissive surface display element, and an optical projection device (3) that projects the entire image displayed on the display screen. Features Overhead Projector - All Offers.

以下、実施例により本発明を説明する。The present invention will be explained below with reference to Examples.

(実施例) 第1図は本実施例にかかるオーバーヘッドプロジェクタ
−の全体的な構成を示す概念図であり、(1)はモノク
ロまたはカラーテレビカメラ、(2)は透過型面表示素
子(2a)’i有する受像機、(3)は投影光学装置、
(3a)は光源、(4)は原稿、その他の被写体、(5
)はスクリーンである。
(Example) Fig. 1 is a conceptual diagram showing the overall configuration of an overhead projector according to this example, in which (1) shows a monochrome or color television camera, and (2) shows a transmissive surface display element (2a). 'i a receiver, (3) a projection optical device,
(3a) is the light source, (4) is the original or other subject, (5
) is the screen.

被写体(4)は、テレビカメラ(1)で撮影されて、そ
の映像は時系列電気信号に変換される。そして、映像情
報金倉むこの電気信号は有線ケーブル又は無線によって
テレビ受像機(2)に送信される。
A subject (4) is photographed by a television camera (1), and the image is converted into a time-series electrical signal. Then, the electrical signal of the video information by Kanakura is transmitted to the television receiver (2) via a wired cable or wirelessly.

受像機(2)は通常のテレビ受像機と同じものであるが
、但し映像を映し出すブラウン管の代りに透過型面表示
素子(2a)k有するものである。透過型面表示素子(
2a)自身は、例えば俗に言う液晶テレビの画面表示装
置おして既に公知のもので、非常lこ多数の画素から出
来ており、各画素には電気光学素子(例えは液晶素子)
が組み込まれ、X−Yマ) I+ソックス動により各画
素に供給される′眠気信号全コントロールすることによ
って各画素を透過する光(光源光)の量全コントロール
することができる。その結果、透過型面表示素子(2a
)上に静止画又は動画全表示することができる。表示状
態にある面表示素子(2a)は透過型であるところから
、ちょうどスライド用のポジフィルムと等価になる。も
ちろん、各画素にシアン、マゼンタ・、イエローの3原
色画素に多重化し、各原色画素の透過光全コントロール
すれば、任意の色を透過光に与えることも可能であり、
この場合にはフルカラー映像全表示できる。
The receiver (2) is the same as a normal television receiver, except that it has a transmissive surface display element (2a)k instead of a cathode ray tube for projecting images. Transmissive surface display element (
2a) The screen display device itself is already known, for example, as a so-called liquid crystal television screen display device, which is made up of a very large number of pixels, and each pixel is equipped with an electro-optical element (for example, a liquid crystal element).
The amount of light (light source light) that passes through each pixel can be completely controlled by controlling the drowsiness signal supplied to each pixel by the X-Y ma) I+Sock motion. As a result, a transmission type surface display element (2a
) You can display the entire still image or video on the screen. Since the surface display element (2a) in the display state is of a transmission type, it is equivalent to a positive film for slides. Of course, if each pixel is multiplexed into three primary color pixels of cyan, magenta, and yellow, and the transmitted light of each primary color pixel is fully controlled, it is possible to give any color to the transmitted light.
In this case, full-color images can be displayed.

ともあれ、テレビカメラ(1)から送信された映像情報
を含む電気信号を受けて、テレビ受像機(2)は面表示
素子(2a)上にその映像を表示する。
In any case, upon receiving an electrical signal containing video information transmitted from the television camera (1), the television receiver (2) displays the image on the surface display element (2a).

そして、面表示素子(2a)上に表示された映像を光源
(3a)から光を照射して投影光学装置(3)によりス
クリーン(5)上に投影する。
Then, the image displayed on the surface display element (2a) is projected onto the screen (5) by the projection optical device (3) by irradiating light from the light source (3a).

この場合、最も簡単な投影光学装置(3ンではスクリー
ン(5)上に倒立像が投影されるので、面表示素子(2
a)上に表示する映像は予め倒立するようにするか、あ
るいは正立像を投影する装置を使用する必要がある。 
1 こうして、小さな被写体(4)を大きなスクリーン(5
)上に投影して一度に多数の人々に見せることができる
In this case, since an inverted image is projected onto the screen (5) in the simplest projection optical device (3-inch), the surface display element (2
a) The image to be displayed above must be inverted in advance, or a device that projects an erect image must be used.
1 In this way, a small subject (4) can be photographed on a large screen (5).
) and can be shown to many people at once.

尚、光源(3a)はm1図のように面表示素子(2a)
’にはさんで投影・光学装置(3)と対称的に設ける必
要は必ずしもなく、例えば光源(3a)の側に反射鏡を
置き、装置(3)と同じ側に光源(3a)を移し、これ
により面表示素子(2a)上の映像に光を照射してもよ
い。
In addition, the light source (3a) is connected to the surface display element (2a) as shown in figure m1.
It is not necessarily necessary to install the projection/optical device (3) symmetrically between the two; for example, a reflecting mirror can be placed on the side of the light source (3a), and the light source (3a) can be moved to the same side as the device (3). Thereby, the image on the surface display element (2a) may be irradiated with light.

(発明の効果) 従って、本発明によれば、従来のオーツく−へ・ンドプ
ロジェクターのように透明なシートに記載された原稿を
用意する必要はなく、普通紙に記載した原稿や、印刷物
、あるいは立体的な形状をもった物体でも、投影できる
。 ′ また、テレビカメラ(1)と受像機(2)との間を遠く
分離することができるので、スクリーン、に近い位置に
テレビカメラを置けば、被写体の交換作業とスクリーン
上に投影された被写体画像の指差し作業とを交互に進め
ることが容易になる。
(Effects of the Invention) Therefore, according to the present invention, there is no need to prepare a manuscript written on a transparent sheet as in the conventional automatic storage projector, and it is not necessary to prepare a manuscript written on plain paper, printed matter, etc. Or even objects with three-dimensional shapes can be projected. ' Also, since the TV camera (1) and the receiver (2) can be separated far apart, if you place the TV camera close to the screen, you can easily change the subject and take pictures of the subject projected on the screen. This makes it easy to alternate between pointing at images and pointing at images.

更にテレビ受像機(2)に対してテレビカメラ(1)か
らの電気信号に代えて商業テレビ放送から受信される信
号やコンピューターからの出力信号全入力し、それらの
映像情報をスクリーン上に投影することも可能である。
Furthermore, instead of the electrical signals from the television camera (1), all signals received from commercial television broadcasting and output signals from the computer are input to the television receiver (2), and the video information is projected onto the screen. It is also possible.

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

第1図は本発明の実施例にかかるオーバーヘットプロジ
ェクタ−の全体的な構成ヶ示す概念図である。 (主要部分の符号の説明) l・・・・・・・・・テレビカメラ 2・・・・・・・・・テレビ受像機 2a・・・・・・透過型面表示素子 3・・・・・・・・・投影光学装置 3a・・・・・・光源 4・・・・・・・・・原稿等の被写体 5・・・・・・・・・スクリーン 出願人 日本光学工業株式会社 代理人 渡 辺 隆 男 手続補 正 害(自発) ■、小事件表示 昭f058年特許願第111536号 2、発明の名称 事件との関係 特許出願人 東京都千代田区丸の内3丁1す(2番3号(411)I
E1本光学工業株式会社 フタオカ シゲタダ 興’11?没社長福岡 成忠 4、代理人 〒140 東京部品用区西大井1丁目6番3号6、補正
の内容 明細書第5頁第7行と第8行との間に次の文」゛、2を
挿入する。 「更にまた、テレビカメラ(1)から出力された時系列
電気信号(映像情報)又はテレビ受像機(2)から取り
出した時系列電気信号(映像情報)をプリンターに導き
、その場で原稿(4)のコピーをfl成できるように実
施例の装置にプリンターを接続してもよい。」 原子 =13二
FIG. 1 is a conceptual diagram showing the overall configuration of an overhead projector according to an embodiment of the present invention. (Explanation of symbols of main parts) l...Television camera 2...Television receiver 2a...Transmissive surface display element 3... ...Projection optical device 3a...Light source 4...Subject such as manuscript 5...Screen Applicant: Agent of Nippon Kogaku Kogyo Co., Ltd. Takashi Watanabe Male Procedural Correction Harm (Voluntary) ■, Minor Case Indication 1988 Patent Application No. 111536 2, Name of Invention Relationship with the Case Patent Applicant 3-1 Marunouchi, Chiyoda-ku, Tokyo (No. 2-3) (411)I
E1 Hon Kogaku Kogyo Co., Ltd. Futaoka Shigetadako'11? Deceased president Shigetada Fukuoka 4, agent 1-6-3-6, Nishi-Oi, Tokyo Parts Industry Ward, 140, has inserted the following sentences between lines 7 and 8 on page 5 of the statement of contents of the amendment. insert. ``Furthermore, the time-series electric signal (video information) output from the television camera (1) or the time-series electric signal (video information) taken out from the television receiver (2) is guided to the printer, and the manuscript (4 ) A printer may be connected to the device of the embodiment so as to make a copy of

Claims (1)

【特許請求の範囲】 撮 被写体?投影するテレビカメラ(1)と、該カメラでと
らえた映像を透過型面表示素子(2a)上に表示するテ
レビ受像機(2)と、該表示素子(2a)上に表示され
た映像全スクリーン上に投影す因投影元学装置(3)と
からなることを特徴とするオーバーヘッドプロジェクタ
−0
[Claims] Subject? A television camera (1) that projects images, a television receiver (2) that displays images captured by the camera on a transmissive surface display element (2a), and a full screen of images displayed on the display element (2a). An overhead projector-0 characterized by comprising a projection device (3) for projecting an image upward.
JP11153683A 1983-06-21 1983-06-21 Overhead projector Pending JPS603616A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11153683A JPS603616A (en) 1983-06-21 1983-06-21 Overhead projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11153683A JPS603616A (en) 1983-06-21 1983-06-21 Overhead projector

Publications (1)

Publication Number Publication Date
JPS603616A true JPS603616A (en) 1985-01-10

Family

ID=14563837

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11153683A Pending JPS603616A (en) 1983-06-21 1983-06-21 Overhead projector

Country Status (1)

Country Link
JP (1) JPS603616A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS614947U (en) * 1984-06-15 1986-01-13 パイオニア株式会社 overhead projector
JPS63191138A (en) * 1987-02-03 1988-08-08 Fuji Xerox Co Ltd Overhead projector
EP0462267A1 (en) * 1990-01-05 1991-12-27 PERRY, Scott M. Method and device for creating a facsimile of an image

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS614947U (en) * 1984-06-15 1986-01-13 パイオニア株式会社 overhead projector
JPS63191138A (en) * 1987-02-03 1988-08-08 Fuji Xerox Co Ltd Overhead projector
EP0462267A1 (en) * 1990-01-05 1991-12-27 PERRY, Scott M. Method and device for creating a facsimile of an image
EP0462267A4 (en) * 1990-01-05 1992-07-15 Scott M. Perry Method and device for creating a facsimile of an image

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