JPS6261464A - Electronic blackboard - Google Patents
Electronic blackboardInfo
- Publication number
- JPS6261464A JPS6261464A JP60202015A JP20201585A JPS6261464A JP S6261464 A JPS6261464 A JP S6261464A JP 60202015 A JP60202015 A JP 60202015A JP 20201585 A JP20201585 A JP 20201585A JP S6261464 A JPS6261464 A JP S6261464A
- Authority
- JP
- Japan
- Prior art keywords
- light
- prism
- beams
- sheet
- color
- 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
- Drawing Aids And Blackboards (AREA)
- Facsimiles In General (AREA)
- Color Image Communication Systems (AREA)
Abstract
Description
【発明の詳細な説明】
〔概要〕
電子的読み取り印刷機能を備える電子黒板において、シ
ート而からの可視光の読み取り情報を、光学的に光の原
色に分光して光検出器に与えてカラー情報を取り出し、
カラープリントを提供するものである。[Detailed Description of the Invention] [Summary] In an electronic whiteboard equipped with an electronic reading and printing function, visible light read information from a sheet is optically separated into primary colors of light and sent to a photodetector to generate color information. Take out the
It provides color printing.
本発明は電子黒板の改良に関する。 The present invention relates to improvements in electronic whiteboards.
電子黒板は視覚にて伝達されるべき文字図形等の情報を
表示する手段として用いられ、またシート而に表示され
た情報は同時にプリントアウトして、記録情報として提
供することも出来る。The electronic blackboard is used as a means for displaying information such as characters and graphics that should be visually transmitted, and the information displayed on the sheet can also be printed out and provided as recorded information at the same time.
この際表示情報がカラーの場合にはプリンドアアウトさ
れる記録情報もカラープリントであることが望ましい。At this time, if the displayed information is in color, it is desirable that the recorded information to be printed out is also printed in color.
電子黒板のシート而に措いた文字図形等を読み取る従来
方式は、第5図にその構成が概略的に示されている。The structure of a conventional method for reading characters, graphics, etc. on a sheet of an electronic blackboard is schematically shown in FIG.
図において光源1の照射光はシート4を照明し、シート
4上の表示情報は反射光としてレンズ2にて葉先され光
検出アレイ3に与えられ電気信号に変換される。この電
気信号は制御回路7に送られ、プリント8を作る。In the figure, the irradiation light from a light source 1 illuminates a sheet 4, and the displayed information on the sheet 4 is reflected by a lens 2, applied to a photodetection array 3, and converted into an electrical signal. This electrical signal is sent to a control circuit 7 to produce a print 8.
検出アレイ3は半導体材料にてつくられ、光の強弱を識
別検出出来るがカラー情報の検出は出来ない、従ってプ
リントアウトされる記録は白黒だけになる。The detection array 3 is made of a semiconductor material and can distinguish and detect the intensity of light, but cannot detect color information, so the printed record is only black and white.
従来方式においてカラープリントをつくろうとする場合
、光検出アレイ3の前部に光の3原色に対応するカラー
円板を設け、これを回転させて光のカラー成分を取り出
すことが考えられる。しかしこの方法では、3原色の円
板を設置し且つ円板を回転させるために動力を設けなく
てはならない。When attempting to make a color print using the conventional method, it is conceivable to provide a color disk corresponding to the three primary colors of light in front of the photodetection array 3, and rotate this to extract the color components of the light. However, this method requires the installation of disks of the three primary colors and the provision of power to rotate the disks.
上述の様にカラープリントを得る為には、回転円板とそ
の回転円板を駆動する特別な動力を設けることが必要で
構造的に複雑なものになりまた装置を大形化する欠点が
ある。As mentioned above, in order to obtain color prints, it is necessary to provide a rotating disk and a special power to drive the rotating disk, resulting in a complicated structure and the disadvantage of increasing the size of the device. .
上記の問題点は、
文字図形を描かれるシートからの光をプリズムにて分光
させ、該分光された複数個の光を各々集光レンズにて集
めて光検出器にて検出してカラー情報を取り出すように
した、
本発明による電子黒板によって解決される。The above problem can be solved by separating the light from the sheet on which the character shapes are drawn using a prism, collecting the separated lights using condensing lenses, and detecting them using a photodetector to obtain color information. This problem is solved by the electronic blackboard according to the present invention, which is removable.
本発明によればカラーに応じて光の屈折率が異なること
を利用し、シート面からの光をプリズムにて分光させ、
プリズムを通過した光がカラーに関係t、C射出方向を
異にすることから、分光光を各々カラーに関係すけて設
けた集光レンズにて集めこれを光検出器に与え、カラー
情報の電気信号をつくりカラープリントを行う。According to the present invention, by utilizing the fact that the refractive index of light differs depending on the color, the light from the sheet surface is separated using a prism,
Since the light passing through the prism has different emission directions depending on the color, the spectral light is collected by condensing lenses installed at intervals related to each color, and is fed to a photodetector, which converts the color information into electricity. Creates a signal and performs color printing.
図示実施例に従い本発明の詳細な説明する。 The present invention will be described in detail according to the illustrated embodiments.
第1図は本発明電子黒板のシート読み取り部の一実施例
を示す斜視図で、第2図はその平面図である。FIG. 1 is a perspective view showing an embodiment of the sheet reading section of the electronic blackboard of the present invention, and FIG. 2 is a plan view thereof.
第3図は本発明電子黒板の他の一実施例を示すシート読
み取り部の斜視図で、第4図はその平面図である。FIG. 3 is a perspective view of a sheet reading section showing another embodiment of the electronic whiteboard of the present invention, and FIG. 4 is a plan view thereof.
図において9は本発明によって設けられたプリズム、1
0はプリズムの回転軸を示す。その他、第5図に対応す
る部分は同一番号にて示す。In the figure, 9 is a prism provided according to the present invention, 1
0 indicates the rotation axis of the prism. Other parts corresponding to those in FIG. 5 are designated by the same numbers.
第1図において、光源lにより照射されドラム6に巻回
されたシート4−ヒの文字図形は、反射光をドラム6の
軸に並行に設置されたスリット板5のスリットを介しプ
リズム9に与える。プリズム9を屈折透過した分光はレ
ンズ2にて集光されて光検出アレイ3に与えられる。プ
リズム9から出射する光はカラーに対応して屈折角が異
なるから、第2図に示す様に3原色に応じ3個のレンズ
2と3個の光検出アレイ3を備える。In FIG. 1, the sheet 4-hi which is irradiated by a light source 1 and wound around a drum 6 gives reflected light to a prism 9 through a slit in a slit plate 5 installed parallel to the axis of the drum 6. . The spectral light that has been refracted and transmitted through the prism 9 is collected by the lens 2 and provided to the photodetection array 3. Since the light emitted from the prism 9 has different refraction angles depending on the color, three lenses 2 and three photodetection arrays 3 are provided according to the three primary colors, as shown in FIG.
各光検出アレイは当てられた光の強弱に応じて値の異な
る電気出力を生じ、かくして、カラー情報は電気信号と
して各光検出アレイから制御回路7へ供給される。Each photodetector array produces an electrical output of a different value depending on the intensity of the light applied to it, and thus color information is supplied as an electrical signal from each photodetector array to the control circuit 7.
ここでスリット板のスリットはシート面のY方向反射光
の成分を通過させ、また光検出アレイもY方向に一列に
並んだ検出素子をもつだけであるからY方向信号が制御
回路7に供給されるだけである。しかし、X方向の読み
取りはシート4をドラム6に巻き込むことにより行なう
ことが出来る。Here, the slits in the slit plate allow the components of the Y-direction reflected light from the sheet surface to pass through, and since the photodetection array also only has detection elements arranged in a row in the Y-direction, the Y-direction signal is supplied to the control circuit 7. It's just that. However, reading in the X direction can be performed by winding the sheet 4 onto the drum 6.
第1図、第2図の実施例では、プリズムが固定されてい
るので、レンズ及び光検出アレイをそれぞれ3個使用し
た。これに対し、第3図、第4図の実施例ではドラム6
の軸に並行に設置されるプリズム9の軸が回転可能に構
成され、−個のレンズと一個の光検出アレイのみにてカ
ラープリントを可能にする。In the embodiments shown in FIGS. 1 and 2, the prisms are fixed, so three lenses and three photodetector arrays are used. On the other hand, in the embodiments shown in FIGS. 3 and 4, the drum 6
The axis of the prism 9, which is installed parallel to the axis of the prism 9, is configured to be rotatable, and color printing is possible using only - lenses and one photodetection array.
第3図において、プリズム9は軸10上にて回転可能と
され、回転角度に応じてカラー成分を光検出アレイ3に
与える。In FIG. 3, prism 9 is rotatable on axis 10 and provides color components to photodetector array 3 depending on the angle of rotation.
光検出アレイ3は光検出信号を制御回路7へ与え、その
際同時にプリズムの回転角度を制御回路7へ送ることに
より光検出アレイからの出力が赤、青、緑成分に対応す
るものであることを判別させ得る。The photodetection array 3 provides a photodetection signal to the control circuit 7, and at the same time sends the rotation angle of the prism to the control circuit 7, so that the output from the photodetection array corresponds to red, blue, and green components. can be determined.
この実施例によればレンズ及び光検出アレイの占める容
積が少ないので電子黒板の厚みを小さく出来る。According to this embodiment, since the volume occupied by the lens and the photodetection array is small, the thickness of the electronic whiteboard can be reduced.
以上述べたように、本発明によれば簡単な構造にてカラ
ープリント可能な電子黒板を提供するものでその作用効
果は極めて大きい。As described above, according to the present invention, an electronic blackboard capable of color printing is provided with a simple structure, and its effects are extremely large.
第1図は本発明の電子黒板のシート読み堆り部の一実施
例を示す斜視図、
第2図はその平面図、
第3図は本発明電子黒板の他の一実施例を示すシート読
み取り部の斜視図、
第4図はその平面図、
第5図は従来の電子黒板の概略的構成図である。
図において、
1は光源、
2はレンズ、
3は光検出アレイ、
4はシート、
5はスリット板、
8はプリント、
9はプリズム、
10はプリズムの回転軸を示す。FIG. 1 is a perspective view showing one embodiment of the sheet reading stack part of the electronic blackboard of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a sheet reading diagram showing another embodiment of the electronic blackboard of the present invention. 4 is a plan view thereof, and FIG. 5 is a schematic configuration diagram of a conventional electronic whiteboard. In the figure, 1 is a light source, 2 is a lens, 3 is a photodetection array, 4 is a sheet, 5 is a slit plate, 8 is a print, 9 is a prism, and 10 is a rotation axis of the prism.
Claims (1)
9)にて分光させ、該分光された複数個の光を各々レン
ズ(2)にて集めて光検出器(3)にて検出して、カラ
ー情報を取り出すようにしてなることを特徴とする電子
黒板。A prism (
9), the plurality of separated lights are collected by a lens (2), and detected by a photodetector (3) to extract color information. Electronic blackboard.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60202015A JPS6261464A (en) | 1985-09-12 | 1985-09-12 | Electronic blackboard |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60202015A JPS6261464A (en) | 1985-09-12 | 1985-09-12 | Electronic blackboard |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6261464A true JPS6261464A (en) | 1987-03-18 |
Family
ID=16450511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60202015A Pending JPS6261464A (en) | 1985-09-12 | 1985-09-12 | Electronic blackboard |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6261464A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6474863A (en) * | 1987-09-17 | 1989-03-20 | Ricoh Kk | Image forming device |
US4914454A (en) * | 1988-04-14 | 1990-04-03 | Minolta Camera Kabushiki Kaisha | Image recording system capable of forming image with different colors in different areas |
US4931875A (en) * | 1988-04-14 | 1990-06-05 | Minolta Camera Kabushiki Kaisha | Image recording system capable of forming image area by area |
US4947210A (en) * | 1987-07-01 | 1990-08-07 | Minolta Camera Kabushiki Kaisha | Multi-color copying machine |
US4958190A (en) * | 1987-09-14 | 1990-09-18 | Minolta Camera Kabushiki Kaisha | Image forming apparatus |
US5023705A (en) * | 1988-01-18 | 1991-06-11 | Minolta Camera Kabushiki Kaisha | Apparatus for forming a three color image including a first, a second, and a black color from two complimentary colors |
US5066986A (en) * | 1988-02-03 | 1991-11-19 | Minolta Camera Kabushiki Kaisha | Image recording system for controlling developing devices |
US5115282A (en) * | 1987-11-09 | 1992-05-19 | Minolta Camera Kabushiki Kaisha | Copying apparatus capable of copying in two colors simultaneously |
-
1985
- 1985-09-12 JP JP60202015A patent/JPS6261464A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4947210A (en) * | 1987-07-01 | 1990-08-07 | Minolta Camera Kabushiki Kaisha | Multi-color copying machine |
US4958190A (en) * | 1987-09-14 | 1990-09-18 | Minolta Camera Kabushiki Kaisha | Image forming apparatus |
JPS6474863A (en) * | 1987-09-17 | 1989-03-20 | Ricoh Kk | Image forming device |
US5115282A (en) * | 1987-11-09 | 1992-05-19 | Minolta Camera Kabushiki Kaisha | Copying apparatus capable of copying in two colors simultaneously |
US5023705A (en) * | 1988-01-18 | 1991-06-11 | Minolta Camera Kabushiki Kaisha | Apparatus for forming a three color image including a first, a second, and a black color from two complimentary colors |
US5066986A (en) * | 1988-02-03 | 1991-11-19 | Minolta Camera Kabushiki Kaisha | Image recording system for controlling developing devices |
US4914454A (en) * | 1988-04-14 | 1990-04-03 | Minolta Camera Kabushiki Kaisha | Image recording system capable of forming image with different colors in different areas |
US4931875A (en) * | 1988-04-14 | 1990-06-05 | Minolta Camera Kabushiki Kaisha | Image recording system capable of forming image area by area |
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