JPS62105130A - Copying machine - Google Patents

Abstract

PURPOSE:To obtain a copying machine which can copy easily only an optional shape area, by providing many liquid crystal shutters for covering a part of a body to be copied, between the body to be copied and a copying optical system. CONSTITUTION:A liquid crystal shutter 1 is placed between a body to be copied 2 and a copying optical system 3, and on the other hand, an area to be copied 4 containing a body to be copied 2 is converted to an image signal by an image pickup circuit 5 and sent to a displaying circuit 6, and displayed to an operator. Based on an image which is shown by a displaying circuit 6, an operator inputs a part whose copying is not desired (or a part whose copying is desired) to a mask generating circuit 8 from a touch panel 7. The mask generating circuit 8 sends a signal to a shutter driving circuit 9, and the shutter driving circuit 9 closes (or opens) the corresponding liquid crystal shutter 1 by information of the generated mask. In such a way, an image of the body to be copied 2 which has been viewed from the copying optical system 3 is masked except an optional shape area which is designated by the operator.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a copying machine, and particularly to a copying machine that can easily copy only an arbitrary shaped area.

[Conventional technology]

In conventional copying machines, the shape of the copying area is constant2 [Problem to be solved by the invention] Therefore, if an attempt is made to copy only a region of an arbitrary shape of the object to be copied, the object to be copied may be deformed or processed. However, it is necessary to add a blank sheet of paper or the like as a mask to the copy surface of the object before copying, which has the drawback of placing a heavy burden on the operator.

[Means for solving problems]

The copying machine of the present invention has a large number of liquid crystal shutters between the object to be copied and the copying optical system.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. A liquid crystal shutter 1 is disposed between a subject 2 and a copying optical system 3. As shown in FIG. On the other hand, the copying area 4 including the copying subject 2 is converted into an image signal by the imaging circuit 5 and sent to the display circuit 6 to be displayed to the operator. Based on the image shown on the display circuit, the operator inputs the part that he does not want to copy (or the part he wants to copy) from the touch panel 7 to the mask generation circuit 8.

The mask generation circuit 8 sends a signal to the shutter interlocking circuit 9,
The shutter drive circuit 9 closes (or opens) the corresponding liquid crystal shutter 1 based on the generated mask information. Therefore, the image of the object 2 seen from the copying optical system 3 is as shown in FIG. 2(C). Areas other than the arbitrary shape area designated by the operator will be masked.

〔Effect of the invention〕

As described above, the present invention has the advantage that only a desired area of the object can be copied by opening and closing some of the many liquid crystal shutters.

In the above embodiment, the image of the object to be copied is displayed to the operator by the imaging circuit and the display circuit, but this is not a component of the present invention, and if the operator knows the situation of the object and the shutter. It is obvious that it may be implemented purely optically.

Further, in this embodiment, a touch panel is used as an input for the operator to generate a mask, but it is obvious that other means such as a digitizer may also be used as long as the object image and the generated mask correspond. be.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram showing an embodiment of the present invention, Fig. 2(a)
-(C) are diagrams showing an example of a display. 1... Liquid crystal shutter, 2... Subject to be copied, 3... Copying optical system, 4... Area to be copied, 5... Imaging circuit, 6...Display circuit, 7...Touch panel, 8...Mask starting circuit, 9...Shutter drive circuit, lO...
...Subject image, 11...Mask, 12.
...The image of the object to be copied as seen from the copying optical system.

Claims (1)

[Claims] A copying machine characterized in that a number of liquid crystal shutters for concealing a part of the object to be copied are arranged between the object to be copied and the copying optical system.