JPS63160459A - Image reader - Google Patents

Abstract

PURPOSE:To recognize an image size by displaying the respective parts of image areas of plural size in a diaplay panel and providing a reference part for deciding the image size in this display panel. CONSTITUTION:Information of an area displayed on a liquid crystal panel 24 is read by an image sensor, processed in the thinning out mode of an image processing circuit and displayed on the liquid crystal panel 24. The reference part 30 of a mark for deciding the image size is added to the circumference of the liquid crystal panel 24, an operator decides the image size thereby an instructs to read a desired image area from a keyboard. Accordingly, control circuit reads the image and transmits only the information corresponding to the instructed image area in the images processed in a processing mode at the time of transmitting to the external device of the image processing circuit to an external device such as a printer. Thereby, the image size can be instantaneously recognized.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an image reading device that uses a reading means to read images of a plurality of sizes recorded on an information recording medium such as a microfilm.

(Prior Art) Conventionally, an image on a microfilm is observed by being illuminated by illumination means such as a halogen lamp and projected onto a screen via a projection lens, etc., and the EIfjl size and the like are confirmed. On the other hand, recently, devices have appeared in which microfilm images are read by an image sensor such as a COD (charge-coupled device) and then printed out, and in such devices, the information read by the image sensor is The image is displayed on a CRT display and observed to confirm the image size.

(Problem to be Solved by the Invention) However, in such conventional examples, when checking the image size, which is essential when printing out images taken on microfilm or recording on optical discs, etc., the former In the latter case, the required volume of the optical screen is large due to the optical path length, resulting in an increase in size, and in addition, there is the problem that the projection lens is expensive, and in the latter case, the problem is that the CRT display is expensive. was there.

Therefore, the present invention has been made to solve the above-mentioned problems of the conventional example, and its purpose is to provide a small and low-cost image reading device that is optimal for checking the image size. be.

(1st Stage for Solving the Problems) In order to achieve the object described in 3. In the present invention, in an image reading device that reads images of a plurality of sizes recorded on an information recording medium at a reading stage, the plurality of sizes are read. ” and the display rX- for displaying each part of the image area.
'xw, and a reference section for determining the size of the image.

(Function) In the present invention having the above configuration, each part of the image area of a plurality of sizes is displayed on the display panel, and the display panel is provided with a reference section for determining the image size, so that the image size can be confirmed. This is what I decided to do.

(Example) The present invention will be explained below based on the illustrated example. Second
The figure is a schematic configuration diagram of an image reading device to which an embodiment of the present invention is applied. In the figure, l is a 7-bachior card as an information recording medium, and a film F is attached to the corner window of this aperture card l. The film F is illuminated by a lamp 3 and a condenser lens 13, and the projected image is converted into an image by an imaging lens 5 as a reading f-stage, such as a 1fccD (charge coupled device), in which a row of light-receiving elements is arranged in a straight line. An image is formed on the scanning plane of the sensor 6. The image sensor 6 is fixed on a carriage 9 that is movable along a guide 7.8, and reads the projected image on the film F by the movement of the carriage 9.

That is, both ends of the wire 16 are hung on the upper part of the +Yariji 9, and the wire 16 is connected to pulleys 12, 13 rotatably attached to a fixed shaft 10, 11, and a pulley fixed to the rotary shaft of a motor 14. 15 is turned, and motor 1
4, it moves along guides 7.8. Reference numeral 18 denotes a light shielding plate for detecting the home position at which reading starts, and when the photosensor 17 is shielded from light due to the movement of the carriage 9, the photosensor 17 sends out a signal.

Figure 0'53 is a block diagram of the same embodiment, in which 20 is a control circuit that controls the entire device;
is the operating keyboard, 22 is the image processing circuit,
It has a processing mode A when information read by the image sensor 6 is sent to an external device 23 such as a printer or an optical disk, and a processing mode B when sending information to a liquid crystal panel 24 as a display panel. The mode is then switched by a command from the control circuit 20. Processing mode B is a mode in which the information read by the image sensor 6 is thinned out to match the display function of the liquid crystal panel 24, which has a coarse information display density. If the black information is 8 or more, it is displayed as black.

FIG. 1 is an explanatory diagram showing the main parts of this embodiment. In the figure, b1 to b3 indicate image frames of each image size on film F, bl is Al size, b2 is A2 and A3 size , b3 is an A4 size image frame. Further, b4 indicates an area displayed on the liquid crystal panel 24, information in this area is read by the image sensor 6, and the image processing circuit 22
The image is processed in processing mode B and displayed on the liquid crystal panel 24. Further, a reference portion (mark) 30 is attached around the liquid crystal panel 24 for determining the image size.
The operator uses this to judge the image size and presses the keyboard 2.
1 to read the desired image area. In response, the control circuit 20 reactivates the motor 14 and
The image is read and only information corresponding to the designated image area of the image processed in processing mode A of the image processing circuit 22 is sent to the external device 23. Here, there is a method of extracting only the information of a desired area.For example, there is a method of expanding it once in memory, specifying the corresponding address, and sequentially sending out only the information of that part, which is a well-known technique. The explanation will be omitted.

In the above embodiment, the liquid crystal panel 24 displays a portion (less than half the size of the entire image area) of the entire image area that includes the image frame of each image size, that is, a portion t3 necessary for confirming the image size. A mark is displayed around the liquid crystal panel 24 for determining the image size.
! A keyboard 21 (instruction stage f) is provided for instructing a desired reading range according to the mold section 30, and the image reading range is controlled to be changed based on signals from the keyboard 21.

In the shoe-wearing embodiment, the image was displayed electrically based on the information read by the image sensor 6, but even if it is projected optically using a lens or mirror, only the part necessary for checking the image size is projected. If configured to do so, the display section can be significantly downsized.

(Effects of the Invention) The image reading device according to the present invention has the above-described configuration and operation, and displays a portion of each image area of a plurality of sizes on a display panel, and uses this display panel as a standard for determining the size of the image. Since the display section is provided with a display section, the display section is small and inexpensive, and the image size can be checked immediately.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing a concave portion of an embodiment of an image reading device according to the present invention, Fig. 2 is a perspective view of a microfilm reading device to which the embodiment is applied, and Fig. 3 is a block diagram of the embodiment. It is a diagram. Explanation of symbol -) 1... Aperture card (information recording medium) 6... Image sensor (reading means) 7.8... Guide 9... Carriage 20.
...Control circuit 21...Keyboard 24...
Liquid crystal panel (display panel) 30...Reference part

Claims (1)

[Claims] An image reading device for reading images of a plurality of sizes recorded on an information recording medium by a reading means, comprising a display panel for displaying each part of the image area of the plurality of sizes, and a display panel provided on the display panel for determining the size of the image. An image reading device comprising: a reference section.