JPH0746198B2 - Reader printer - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reader printer that optically magnifies and projects an image on a microfilm or the like, and scans the projected light to read image information.

(Prior Art) Conventionally, as a reader printer of this type, for example, there is a microfilm reader printer as shown in FIG.
In the reader printer, the reduced image on the roll-shaped microfilm 102 illuminated by the illumination lamp 101 is enlarged by the imaging lens 103, and is imaged on the screen 106 via the first reflection mirror 104 and the second reflection mirror 105. It is supposed to tie. When printing out the formed image,
First, the linear light-receiving sensor 107 is moved linearly at a constant speed in the direction of arrow A in parallel with the screen surface for scanning, and the projected image incident from the second reflecting mirror 105 is read. The image read in this way was sent to a printer typified by electrophotography to obtain a magnified reproduced image. Then, when a specific area of the image is specified and, for example, a partially reproduced image of the image is desired to be obtained (trimming), a method of specifying the area and a method of inputting coordinates from a digitizer or a keyboard to the device, or a screen frame Many have been proposed, such as a device that detects a specified area from the resistance voltage of a position sensor.

(Problems to be Solved by the Invention) However, as a means for designating an arbitrary area of a display image, although inputting coordinates from a keyboard is inexpensive, the coordinates of the coordinates are keyed while measuring the display image on the screen 106 with a scale. Since it had to be entered, it was extremely inferior in operability.

Also, the screen touch type by digitizer,
The digitizer itself is expensive, and the cost of increasing the resolution of area designation becomes exponentially high. Furthermore, the digitizer that can give instructions while viewing the image on the screen 106 must be placed in front of the screen, which reduces the visibility of the screen 106 and sacrifices the reader function as a reader printer. there were.

In the case of detecting the specified position from the resistance voltage of the position sensor provided in the screen frame, if the resolution of the area specification is increased, the wiring of the position sensor becomes wider, and it becomes necessary to enlarge the screen frame, or the position detection is performed. However, since the linearity of the position sensor decreases, the position sensor must be divided into several parts.

The present invention has been made in order to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a reader that can specify a region of a display image with high accuracy, at low cost, and easily. To provide a printer.

(Means for Solving the Problem) In order to achieve the above object, in the present invention, a desired image in an image recording medium is projected on a transmissive screen, and image projection light on this screen is read by a reading means. In a reader printer that reads a projected image by scanning and prints, a transparent member, which is arranged in front of the screen and is capable of writing an area designation frame for designating an area to be printed, and an image projection onto the screen. A moving means for moving the reading means to a first position for receiving light and a second position for receiving light from the transparent member through the screen, and the area designating frame written on the transparent member The reading means placed at two positions is scanned and read, and the image area to be printed is determined by the read area designation frame. To do.

Further, it is effective to provide an imaging lens, which is located between the reading unit and the screen, and forms an image of the drawing frame of the transparent member on the reading unit.

And, it is desirable that the transparent member is movable along the screen.

(Operation) In the present invention having the above configuration, in order to determine the designated area based on an arbitrary drawing frame drawn on the transparent member,
You can easily specify the area that is not bound by the shape.

In addition, the drawing frame can be accurately read by providing the imaging lens between the reading unit and the screen for properly focusing the drawing frame of the transparent member on the reading unit.

By disposing the transparent member movably on the screen, the transparent member can be removed from the front surface of the screen when not in use, and the visibility of the image on the screen can be secured.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a microfilm reader printer according to the present invention.

In the figure, the reduced image of the roll-shaped microfilm 2 illuminated by the illumination lamp 1 is enlarged by the imaging lens 3 and forms an image on the screen 4. The first reflecting mirror 5 and the second reflecting mirror 6 are for bending the enlarged optical path to make the apparatus compact.

The light receiving elements 7 are arranged on the linear light receiving sensor 8 in the direction orthogonal to the scanning direction indicated by the arrow M, and each of the elements forms a pixel of a digital image.

A transparent sheet 9 as a transparent member is provided on the front surface (operator side) of the screen 4 so that it can be wound between the upper and lower sides of the screen 4. Various winding methods may be adopted, and for example, manual or electric winding, or electric winding by a fixed amount may be used. The operator designates an area to be designated on the transparent sheet 9 with a drawing frame such as a key frame or a circle, which is arbitrarily written with a predetermined pen. Thereafter, the linear sensor 8 linearly moves at a constant speed in the direction of arrow M parallel to the screen surface in response to a signal from an operation switch (not shown), and performs pre-scanning for reading the drawing frame on the transparent sheet 9 as area designation information through the screen. To do. At this time, the light receiving element 7
It is placed at the second position facing the screen 4 side, and the drawing frame of the transparent sheet 9 can be read by blocking the projection light by the linear light receiving sensor 8 itself. Transparent sheet 9
After the end of the pre-scan for reading the upper drawing frame, the linear light-receiving sensor 8 is inverted in the direction shown by the dotted line 8a and placed at the first position, and from this position the main scan is immediately started in the direction of the arrow Ma, and the read memory is read in the pre-scan. A signal is sent to the digital printer in accordance with the specified area designation information. FIG. 2 shows an external view of a reader printer using the present invention. As is clear from FIGS. 1 and 2, since a special scanning optical system for reading the designated area is not provided outside, the external appearance can be as compact as a normal reader. Further, in the above-mentioned embodiment, the transparent sheet 9 is wound in a roll shape so as to be movable up and down. However, as shown in FIG. 3, for example, the transparent sheet 9 is pulled down in a curtain shape so as to be detachable, and the screen 4 is used when not in use. It may be removed from the front.

Next, a specific area designating operation of the present invention will be described with reference to FIG. When it is desired to take out only the graph from the image projected on the screen 4 and print it out, a mark (drawing frame) as the area designation information is attached to the transparent sheet 9 on the front surface of the screen 4 with the pen 11. The mark drawn by the ink of the pen 11 has a contrast of light and dark by external light, and can be sufficiently read by the linear light receiving sensor 8 even through the screen 4 having a diffusion surface. Then, the reader printer body is provided with a memory for recording the data obtained by the pre-scan, and in order to determine which area in the read image in the main scan corresponds to the area indicated by the data. Used for. It is assumed that the operator previously operates a switch (not shown) for selecting trimming for taking out a partial image and masking for deleting a partial image, and here, a trimming key is operated. Then, as shown in the figure, only the graph in the frame surrounded by the square is printed on the transfer material 12, and the printer 13
Is output from. In the above-described embodiment, the area of the printout is designated by the square frame, but according to the present invention, the area can be designated not only by the circle or the triangle but also by the irregularly shaped frame. In addition, when rewriting, the transparent sheet 9 may be fed with an unused portion wound in a roll shape, or may be written using an erasable material ink (for example, an aqueous ink). . It should be noted that an eraser for erasing ink on the sheet may be provided in the winding section to automatically erase the sheet when the sheet is wound.

FIG. 5 is a block diagram showing a reader printer according to another embodiment of the present invention. In this embodiment, an image forming lens 21 having a focal length for properly forming an image on the light receiving surface of the light receiving element 7 on the information on the transparent sheet 9 is provided. In the above-described embodiment, the linear light receiving sensor 8 is attached to the screen surface or the transparent sheet 9.
Could not sense a precise image, and could only recognize simple patterns such as frames. However, in the present embodiment, by providing the image forming lens 21 in focus with the transparent sheet 9 when the linear light receiving sensor 8 faces the screen 4, it is possible to perform clear image recognition and specify a more precise area. Can be done. Further, by such highly accurate image recognition, for example, pictograms and messages written on the transparent sheet 9 can be sensed, and these can be printed out by superimposing them on the image. The situation is shown in FIG. That is, the operator turns on an overlay switch (not shown) that instructs superposition in advance. Then, by writing "Λ (lambda)" on the transparent sheet 9 at an arbitrary position, for example, in the upper right corner with the pen 11, and operating a printout key (not shown), the linear light receiving sensor 8 faces the screen 4 and performs a front operation. start. The linear light receiving sensor 8 recognizes the character “Λ” written on the transparent sheet 9 together with the area thereof, and records this data in the memory. Then, when the projection image read by the main scan is printed out, the data “Λ” in the memory is overlaid on the print image.

Although a transparent sheet material is illustrated as the transparent member in the above embodiment, other materials such as glass or plastic may be attached to the screen frame.

(Effects of the Invention) The present invention has the above-described configuration and operation. Since the designated region is determined based on an arbitrary drawing frame drawn on the transparent member, it is possible to easily designate a region that is not bound by a shape. it can. In addition, a digitizer, a keyboard, etc. are not required, and reliable area designation can be performed with an inexpensive configuration.

In addition, the drawing frame can be accurately read by providing the imaging lens between the reading unit and the screen for properly focusing the drawing frame of the transparent member on the reading unit. Therefore, it becomes possible to read arbitrary pictograms as well as the exact position of the designated area.

By disposing the transparent member movably on the screen, the transparent member can be removed from the front surface of the screen when not in use, and the visibility of the image on the screen can be secured.

[Brief description of drawings]

FIG. 1 is a block diagram showing a reader printer according to an embodiment of the present invention, FIG. 2 is an external view showing the reader printer of FIG. 1, and FIG. 3 is a reader printer showing another mounting method of a transparent sheet. FIG. 4 is an external view, FIG. 4 is a diagram for explaining a specific operation example for specifying an area, FIG. 5 is a configuration diagram showing a reader printer according to another embodiment of the present invention, and FIG. 6 is FIG. FIG. 7 is a diagram for explaining a specific operation example of the reader printer shown in FIG. 7, and FIG. 7 is a configuration diagram showing a conventional reader printer. Explanation of symbols 4 ... Screen 8 ... Linear light receiving sensor (reading means) 9 ... Transparent sheet (transparent member) 21 ... Imaging lens

Claims (3)

[Claims] 1. A reader printer which projects a desired image in an image recording medium onto a transmissive screen, and scans image projection light onto the screen by scanning means to read the projected image for printing. A transparent member disposed on the front surface of the screen and capable of writing an area designating frame for designating an area to be printed; a first position for receiving image projection light on the screen; and light from the transparent member through the screen. A second position for receiving light and a moving means for moving the reading means, and the area designating frame written in the transparent member is scanned by the reading means placed at the second position, and the read area is read. A reader printer characterized in that an image area to be printed is determined by a designated frame. 2. The reader printer according to claim 1, further comprising an imaging lens, which is located between the reading means and the screen and forms an image on the drawing frame of the transparent member on the reading means. 3. The transparent member is movable along the screen.
The listed reader printer.