JPS60230228A - Picture position designating system of projection type picture reproducing device - Google Patents
Picture position designating system of projection type picture reproducing deviceInfo
- Publication number
- JPS60230228A JPS60230228A JP59085165A JP8516584A JPS60230228A JP S60230228 A JPS60230228 A JP S60230228A JP 59085165 A JP59085165 A JP 59085165A JP 8516584 A JP8516584 A JP 8516584A JP S60230228 A JPS60230228 A JP S60230228A
- Authority
- JP
- Japan
- Prior art keywords
- screen
- spot
- projection
- projection type
- indicator
- 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
Links
Landscapes
- Position Input By Displaying (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
この発明は、画像表示装置と人間とのインターフェース
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an interface between an image display device and a human.
従来この種の装置としてＣＲＴに対してのみ用いられる
ようなライトペンがあった。このようなライトペンの一
例を第１図に示す。図において、１はＣＲＴの画像再生
面、２は先端に光検出素子（一般には、フォト・トラン
ジスタ）を組込んだペン形の指示装置である。Conventionally, as this type of device, there was a light pen that was used only for CRTs. An example of such a light pen is shown in FIG. In the figure, 1 is an image reproducing surface of a CRT, and 2 is a pen-shaped pointing device having a photodetecting element (generally a phototransistor) incorporated at its tip.
次に動作について説明する。ＣＲＴの画像再生面１には
、ラスタ・スキャン方式で画像が表示さ、れる亀のとす
る。このとき、走査線に重畳されているライトペン・マ
ーカによる輝点がライトペン２の先′端の光検出素子に
よって検出され、位置情報を得ることができる。Next, the operation will be explained. An image of a turtle is displayed on the image reproduction surface 1 of the CRT using a raster scan method. At this time, the bright spot caused by the light pen marker superimposed on the scanning line is detected by the light detection element at the tip of the light pen 2, and position information can be obtained.
従来のライトペン装置は以上のように構成されているの
で、ＣＲＴによる画像再生面に対してだけ用いることが
でき、ライトペンを画面上に密着（至近距離）させるこ
とが必要なため、一般に大画面で遠隔監視を目的とする
プロジェクタ型画像再生装置に対しては適用することが
できなかった。Since the conventional light pen device is configured as described above, it can be used only on the image reproduction surface of a CRT, and because it is necessary to bring the light pen in close contact with the screen (at close range), it is generally not very large. This method could not be applied to a projector-type image reproducing device for the purpose of remote monitoring on a screen.
この発明は、ＣＲＴ用ライライトペン様の位置指示機能
をプロジェクタ型画像再生装置に対して実現することを
目的としている。The object of the present invention is to realize a position indicating function similar to that of a light pen for CRT in a projector type image reproducing device.
以下、この発明の一実施例を図について説明する。第２
図において、３は投写管、４はスクリーン（ここでは、
透過形プロジェクタ装置の場合の構成を示した）、５は
赤外線発光素子を先端に組込んだペン形の指示装置、６
は赤外線位置検出装置である。投写管３は通常、ＲＧＢ
ａ管で構成され、スクリーン４は拡散板としての役割を
もつ。An embodiment of the present invention will be described below with reference to the drawings. Second
In the figure, 3 is a projection tube, 4 is a screen (here,
5 is a pen-shaped indicating device incorporating an infrared light emitting element at the tip; 6 is a pen-shaped indicating device;
is an infrared position detection device. The projection tube 3 is usually RGB
The screen 4 is composed of an a-tube and serves as a diffusion plate.
ペン形の指示器５の構造を第３図に示す。図において、
７は赤外線発光素子、８は投影レンズ、９は赤外線発光
素子の駆動回路である。駆動回路９のブロック図を、第
４図に示す。図において、１０は赤外線発光素子駆動電
源、１１は発振回路、１２は変調回路である。The structure of the pen-shaped indicator 5 is shown in FIG. In the figure,
7 is an infrared light emitting element, 8 is a projection lens, and 9 is a drive circuit for the infrared light emitting element. A block diagram of the drive circuit 9 is shown in FIG. In the figure, 10 is an infrared light emitting element driving power source, 11 is an oscillation circuit, and 12 is a modulation circuit.
次に、赤外線位置検出装置６の構造を第５図に示す。図
において１３は撮像レンズ、１４はＰ８Ｄセンサ、１５
はＰ８Ｄセンサ制御回路である。Next, the structure of the infrared position detection device 6 is shown in FIG. In the figure, 13 is an imaging lens, 14 is a P8D sensor, and 15
is a P8D sensor control circuit.
ＰＳＤセンサ制御回路１５のブロック図を、第６図に示
す。図において、１６はフィルタ、１７はセンサ・アン
プ、１８はん勺コンバータである。A block diagram of the PSD sensor control circuit 15 is shown in FIG. In the figure, 16 is a filter, 17 is a sensor amplifier, and 18 is a converter.
次に動作について説明する。第２図において、指示器５
から投写され九赤外光は、スクリーン４にスポットをつ
＜シ、その重心位置が位置検出装置６からＸ、Ｙの座標
値でディジタル出力される。Next, the operation will be explained. In FIG. 2, the indicator 5
The nine infrared rays projected from the screen form a spot on the screen 4, and the position of the center of gravity thereof is digitally output from the position detection device 6 as X and Y coordinate values.
赤外スポットをつくる指示器５は、第３図のように発光
素子Ｔとビームをつくるための投影レンズ８で構成され
るが、スクリーン４上のスポットは比較的ひろがシのあ
るものとなってよい。その理由は後述する。指示器５の
駆動回路は第４図のように、投写赤外光を変調してスポ
ットの検出を容易にしている。変調周波数は、Ｉ ＫＨ
ｚ程度とする。The indicator 5 that creates an infrared spot is composed of a light emitting element T and a projection lens 8 that creates a beam as shown in FIG. 3, but the spot on the screen 4 is relatively wide. It's fine. The reason will be explained later. As shown in FIG. 4, the drive circuit of the indicator 5 modulates the projected infrared light to facilitate spot detection. The modulation frequency is IKH
It is assumed to be about z.
スクリーン４上のスポットのＸ−Ｙ座標を得る位置検出
装置６は、第５図のように、スクリーン全体を視野とす
るための撮像レンズ１３、スポットのｘ−ｙ（重心）座
標をアナログ出力するＰＳＤセンサ１４、及びその制御
回路１５で構成される。The position detection device 6 that obtains the X-Y coordinates of the spot on the screen 4 outputs the x-y (center of gravity) coordinates of the spot in analog form through an imaging lens 13 for viewing the entire screen as shown in FIG. It is composed of a PSD sensor 14 and its control circuit 15.
第６図に制御回路のブロック図を示した。Ｐ８Ｄセンサ
のアナログ出力は、投光部（指示器）の変調周波数と同
じ周波数を中心周波数を４つフィルタ１６によってフィ
ルタリングされ、外光の影響が除去される。さらにアン
プＩＴによって増幅され、Φコンバータ１８によってデ
ィジタル出力に変換される。FIG. 6 shows a block diagram of the control circuit. The analog output of the P8D sensor is filtered by four filters 16 whose center frequency is the same as the modulation frequency of the light projector (indicator), and the influence of external light is removed. The signal is further amplified by the amplifier IT and converted into a digital output by the Φ converter 18.
なお、上記実施例では透過形プロジェクタ装置について
のものを示したが、反射形プロジェクタについても同様
に構成できる。In the above embodiment, a transmission type projector device is shown, but a reflection type projector can also be configured in the same way.
また、上記実施例では、赤外光スポットを用いているが
、本発明は赤外光に限らず実施可能で、例えば近紫外線
スポットなどを用いても同様の効果を得ることができる
。Further, in the above embodiments, an infrared light spot is used, but the present invention is not limited to infrared light, and the same effect can be obtained by using, for example, a near ultraviolet light spot.
以上のように、この発明によれば、ＣＲＴの場合のライ
トペンと同様の機能を、プロジェクタ型画像再生装置に
ついて実現することができる効果がある０As described above, according to the present invention, the same function as that of a light pen in the case of CRT can be realized in a projector type image reproduction device.
第１図は従来のＣＲＴ用ライライトペン装置略構成図、
第２図はこの発明の一実施例によるプロジェクタ用位置
指示装置の概略構成図、第３図はこの発明の一実施例に
よる赤外線指示器の一例を示す構成図、第４図は駆動回
路のブロック図、第５図は赤外線位置検出装置の構成図
、第６図は制。
御回路のブロック図である。
１・・・ＣＲＴの画像再生面、２・・・ライトペン、３
・・・投写管、４・・・スクリーン、５・・・指示器、
６・・・位置検出装置、７・・・赤外発光素子、８・・
・投影レンズ、Ｓ・・・駆動回路、１Ｇ・・・駆動電源
回路、１１・・・発振回路、１２・・・変調回路、１３
・・・撮像レンズ、１４・・・ＰＳＤセンサ、１５・・
・制御回路、１６・・・フィルタ、１７・・・センナ・
アンプ、１８・・・いコンバータＯ
特許出願人 三菱電機株式会社
第１図
第３図
１″：Ｊ
第６図
セシワ
手続補正書（自発）
特許庁長官殿
１、事件の表示 特願昭５９−８５１６５号２、発明の
名称
投射量画像再生装置の画面位置指定方式３、補正をする
者
代表者片山仁へ部
４、代 理 人 郵便番号 １０５
住 所 東京都港区西新橋１丁目４番１０号５、補正の
対象
、（１）明細書の特許請求の範囲の欄
６、補正の内容
（１）別紙の過多特許請求の範囲を補正する。
（２）明細書第３頁第１４行目「役割」とあるのを「役
割」と補正する。
１、添付書類の１鎌
補正後の特許請求の範囲を記載した書面 １通以上
補正後の特許請求の範囲
（１）投射画像再生用スクリーンを備えた画像再生装置
において、上記スクリーンの全面を検出範囲とした不可
視光スポットの照射位置検出用撮像手段を設け、上記ス
クリーン面の任意の位置に対する不可視光スポットの投
射が可能なペン型投光器による画面位置指定入力操作が
行なえるように構成したことを特徴とする投射型画像再
生装置の画面位置指定方式。
（２）上記不可視光スポットが赤外線スポットであるこ
とを特徴とする特許請求の範囲第１項に記載の投射型画
像再生装置の画面位置指定方式。
（３）上記不可視光スポットが所定の周波数で振幅変調
されていることを特徴とする特許請求の範囲第１項に記
載の投射型画像再生装置の画面位置指定方式。Figure 1 is a schematic configuration diagram of a conventional CRT light pen device.
FIG. 2 is a schematic configuration diagram of a position indicating device for a projector according to an embodiment of the present invention, FIG. 3 is a configuration diagram showing an example of an infrared indicator according to an embodiment of the present invention, and FIG. 4 is a block diagram of a drive circuit. Figure 5 is a configuration diagram of the infrared position detection device, and Figure 6 is a diagram of the system. FIG. 3 is a block diagram of a control circuit. 1... Image playback surface of CRT, 2... Light pen, 3
...Projection tube, 4...Screen, 5...Indicator,
6... Position detection device, 7... Infrared light emitting element, 8...
- Projection lens, S... Drive circuit, 1G... Drive power supply circuit, 11... Oscillation circuit, 12... Modulation circuit, 13
...Imaging lens, 14...PSD sensor, 15...
・Control circuit, 16...Filter, 17...Senna・
Amplifier, 18... converter O Patent applicant Mitsubishi Electric Corporation Figure 1 Figure 3 Figure 1'': J Figure 6 Seshiwa procedural amendment (voluntary) Commissioner of the Japan Patent Office 1, Indication of case Patent application 1983- No. 85165 No. 2, Name of the invention Projection amount Screen position specification method for image reproducing device 3, Person making the correction Representative: Hitoshi Katayama Department 4, Agent Postal code: 105 Address: 1-4-10 Nishi-Shinbashi, Minato-ku, Tokyo No. 5, Subject of amendment, (1) Claims column 6 of the specification, Contents of amendment (1) Amend the excessive claims in the attached sheet. (2) Line 14, page 3 of the specification The word "role" should be corrected to "role." 1. A document stating the scope of claims after amendment of one or more attached documents Claims after amendment (1) In an image reproduction device equipped with a screen for projection image reproduction, detecting the entire surface of the screen An imaging means for detecting the irradiation position of the invisible light spot as a range is provided, and the screen position designation input operation can be performed using a pen-type projector capable of projecting the invisible light spot to any position on the screen surface. Features a screen position designation method for projection-type image playback devices. (2) A screen position designation method for a projection type image reproducing apparatus according to claim 1, wherein the invisible light spot is an infrared spot. (3) A screen position designation method for a projection type image reproducing apparatus according to claim 1, wherein the invisible light spot is amplitude-modulated at a predetermined frequency.
Claims (3)
置において、上記スクリーンの全面を検出範囲とした不
可視光スポットの照射位置検出用撮像手段を設け、上記
スクリーン面の任意のイ装置に対する不可視光スポット
の投射が可能なライトペン手段による画面位置指定入力
操作が行なえるように構成したことを特徴とする投射型
画像再生装置−の画面位置指定方式。(1) In an image reproducing device equipped with a screen for reproducing a projected image, an imaging means for detecting the irradiation position of an invisible light spot is provided, the detection range of which is the entire surface of the screen, and the invisible light spot is applied to any device on the screen surface. 1. A screen position designation method for a projection type image reproducing apparatus, characterized in that the screen position designation input operation can be performed using a light pen means capable of projecting images.
ことを特徴とする特許請求の範囲第１項に記載の投射型
画像再生装置の画面位置指定方式。(2) A screen position designation method for a projection type image reproducing apparatus according to claim 1, wherein the invisible light spot is an infrared spot.
調されていることを特徴とする特許請求の範囲第１項に
記載の投射型画像再生装置の画面位置指定方式。(3) A screen position designation method for a projection type image reproducing apparatus according to claim 1, wherein the invisible light spot is amplitude-modulated at a predetermined frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59085165A JPS60230228A (en) | 1984-04-28 | 1984-04-28 | Picture position designating system of projection type picture reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59085165A JPS60230228A (en) | 1984-04-28 | 1984-04-28 | Picture position designating system of projection type picture reproducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60230228A true JPS60230228A (en) | 1985-11-15 |
Family
ID=13851045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59085165A Pending JPS60230228A (en) | 1984-04-28 | 1984-04-28 | Picture position designating system of projection type picture reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60230228A (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02230189A (en) * | 1989-03-02 | 1990-09-12 | Tere Syst:Kk | Video selective display device |
| WO1991001543A1 (en) * | 1989-07-19 | 1991-02-07 | Bell Communications Research, Inc. | Light-pen system for projected images |
| US5045843A (en) * | 1988-12-06 | 1991-09-03 | Selectech, Ltd. | Optical pointing device |
| EP0484160A2 (en) * | 1990-11-02 | 1992-05-06 | Xerox Corporation | Position and function input system for a large area display |
| US5115230A (en) * | 1989-07-19 | 1992-05-19 | Bell Communications Research, Inc. | Light-pen system for projected images |
| US5138304A (en) * | 1990-08-02 | 1992-08-11 | Hewlett-Packard Company | Projected image light pen |
| JPH04260114A (en) * | 1990-11-09 | 1992-09-16 | Proxima Corp | Method and apparatus for calibrating optical- computer input system |
| JPH05233148A (en) * | 1992-02-19 | 1993-09-10 | Sony Tektronix Corp | Projector device with coordinate input function |
| JPH0612182A (en) * | 1992-04-03 | 1994-01-21 | Xerox Corp | Large electronic writing system |
| US5341155A (en) * | 1990-11-02 | 1994-08-23 | Xerox Corporation | Method for correction of position location indicator for a large area display system |
| US5359348A (en) * | 1992-05-21 | 1994-10-25 | Selectech, Ltd. | Pointing device having improved automatic gain control and information reporting |
| JPH07503562A (en) * | 1992-02-03 | 1995-04-13 | プロクシマ コーポレイション | Calibration arrangement of optical system auxiliary inputs and how to use them |
| US5504501A (en) * | 1989-11-07 | 1996-04-02 | Proxima Corporation | Optical input arrangement and method of using same |
| US5515079A (en) * | 1989-11-07 | 1996-05-07 | Proxima Corporation | Computer input system and method of using same |
| US6339748B1 (en) * | 1997-11-11 | 2002-01-15 | Seiko Epson Corporation | Coordinate input system and display apparatus |
| US6628263B1 (en) | 1994-03-04 | 2003-09-30 | Semiconductor Energy Laboratory Co., Ltd. | Information input/output apparatus |
| JP2007323660A (en) * | 2007-06-25 | 2007-12-13 | Sony Corp | Drawing device and drawing method |
| JP2007334697A (en) * | 2006-06-15 | 2007-12-27 | Taisei Corp | Pointing position detection system |
| JP2008146463A (en) * | 2006-12-12 | 2008-06-26 | Mitsubishi Electric Corp | Position detection apparatus |
-
1984
- 1984-04-28 JP JP59085165A patent/JPS60230228A/en active Pending
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5045843A (en) * | 1988-12-06 | 1991-09-03 | Selectech, Ltd. | Optical pointing device |
| JPH02230189A (en) * | 1989-03-02 | 1990-09-12 | Tere Syst:Kk | Video selective display device |
| US5115230A (en) * | 1989-07-19 | 1992-05-19 | Bell Communications Research, Inc. | Light-pen system for projected images |
| WO1991001543A1 (en) * | 1989-07-19 | 1991-02-07 | Bell Communications Research, Inc. | Light-pen system for projected images |
| EP0485394A1 (en) * | 1989-07-19 | 1992-05-20 | Bell Communications Res | Light-pen system for projected images. |
| JPH0776902B2 (en) * | 1989-07-19 | 1995-08-16 | ベル コミュニケーションズ リサーチ インコーポレーテッド | Light pen system |
| US5515079A (en) * | 1989-11-07 | 1996-05-07 | Proxima Corporation | Computer input system and method of using same |
| US5504501A (en) * | 1989-11-07 | 1996-04-02 | Proxima Corporation | Optical input arrangement and method of using same |
| US5138304A (en) * | 1990-08-02 | 1992-08-11 | Hewlett-Packard Company | Projected image light pen |
| US5341155A (en) * | 1990-11-02 | 1994-08-23 | Xerox Corporation | Method for correction of position location indicator for a large area display system |
| JPH04299727A (en) * | 1990-11-02 | 1992-10-22 | Xerox Corp | Position and function input system for large display |
| EP0484160A2 (en) * | 1990-11-02 | 1992-05-06 | Xerox Corporation | Position and function input system for a large area display |
| JPH04260114A (en) * | 1990-11-09 | 1992-09-16 | Proxima Corp | Method and apparatus for calibrating optical- computer input system |
| JPH07503562A (en) * | 1992-02-03 | 1995-04-13 | プロクシマ コーポレイション | Calibration arrangement of optical system auxiliary inputs and how to use them |
| JPH05233148A (en) * | 1992-02-19 | 1993-09-10 | Sony Tektronix Corp | Projector device with coordinate input function |
| JPH0612182A (en) * | 1992-04-03 | 1994-01-21 | Xerox Corp | Large electronic writing system |
| US5495269A (en) * | 1992-04-03 | 1996-02-27 | Xerox Corporation | Large area electronic writing system |
| US5359348A (en) * | 1992-05-21 | 1994-10-25 | Selectech, Ltd. | Pointing device having improved automatic gain control and information reporting |
| US6628263B1 (en) | 1994-03-04 | 2003-09-30 | Semiconductor Energy Laboratory Co., Ltd. | Information input/output apparatus |
| US6339748B1 (en) * | 1997-11-11 | 2002-01-15 | Seiko Epson Corporation | Coordinate input system and display apparatus |
| JP2007334697A (en) * | 2006-06-15 | 2007-12-27 | Taisei Corp | Pointing position detection system |
| JP2008146463A (en) * | 2006-12-12 | 2008-06-26 | Mitsubishi Electric Corp | Position detection apparatus |
| JP2007323660A (en) * | 2007-06-25 | 2007-12-13 | Sony Corp | Drawing device and drawing method |
| JP4513830B2 (en) * | 2007-06-25 | 2010-07-28 | ソニー株式会社 | Drawing apparatus and drawing method |
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