JPS58132267A - Microfilm reader - Google Patents

Abstract

PURPOSE:To reduce the size of the whole device and to install a copying and a projection part at optional positions, by providing an interface part for generating picture data and a storage part for storing one screen of a mu film and reproducing a picture on the basis of the stored picture data. CONSTITUTION:The output signal of an image sensor 20 is converted by an input interface 21 into picture data on every picture element, which is supplied to a control part 22. The storage part 26, on the other hand, consists of an ROM and an RAM and transmits and receives data to and from a control part 22. In the ROM of the storage part 26, a program used by a mu processor is stored and in the RAM, picture data based upon the output signal of the image sensor 20 is stored; the storage capacity of this RAM is large enough to store picture data on one screen of a mu film 1. Further, a video signal is generated by an output interface 23 on the basis of the output signal of the control part 22.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a microfilm reading device for enlarging and projecting or enlarging and copying images on microfilm into a visible state.

Microfilm has been widely used in recent years to take pictures of documents, documents, etc. in reduced size, preserve and organize them. When reading the image on this microfilm, conventionally the first Ill.
In this figure, l is a microfilm, which is pulled out from the film cartridge 2 and conveyed to conveying rollers 4a, 4b, and 5a, and is further conveyed by reel 8. It is wound up. This reel 8 and the transport rollers 4as4b, 5a, 5b, etc. F1 are controlled by a transport control section (not shown). Like Hatomo, the images taken on the microfilm 1 at a reduced size are arranged one frame at a time (/lit plane) in the transport direction. f3a.

Reference numeral 6b is a pressure-bonded glass that holds the microfilm l, and a lamp 7 is provided below the pressure-bonded glass 6b to illuminate the image on the microfilm l.This lamp 7
The image irradiated by the light passes through a lens (10, slit) 11 and is formed on the photosensitive drum (1) of the copying machine. When the photosensitive drum 12 rotates in accordance with the transport speed of the microfilm 1, an enlarged image of the image 11 is obtained on the photosensitive drum 12. The toner is used for copying by 18 companies, and is deposited on the drum 12 in correspondence with the enlarged image.

The adhered toner is then transferred to the paper 14, thereby enlarging and copying the image on the microfilm.

Also, it is a 16-branched mirror, and when it is rotated to the rotation position a around the fulcrum A, the image on the microfilm l that has been jilfined by the lamp 7 is t? 161C and is enlarged and projected onto the screen 19, the image on the microphone film l can be read by viewing this scissors mapping from direction B shown in the figure.

By the way, as can be seen from the figure, the conventional reading device described above uses optical means to enlarge the image, which has the disadvantage that the path through which the light passes becomes long, making the entire device large. Ta. Furthermore, since the copying section and the projection section must be provided on the extension of the optical path, there is a drawback that the installation positions of the copying section and the projection section are limited.

In view of the above-mentioned circumstances, the present invention provides a microfilm reading device in which the entire device can be made extremely compact, and the installation positions If of the copying section and the projection section can be arbitrarily determined. an image sensor that receives the light from the light source that has passed through the image sensor; an interface unit that creates image data based on the output signal of the image sensor; A storage section for storing one screen of images is provided, and the image is reproduced based on the mental image data stored in the storage section.

An actual example of the present invention will be described below with reference to the drawings.

FIG. 2 is a block diagram showing the configuration of an embodiment of the present invention. In this figure, parts corresponding to those in FIG. 1 are designated by the same reference numerals, and their explanation will be omitted.

In this figure, 20 is a two-dimensional image sensor that receives the light from the lamp 7 that transmits the image on the microfilm l. The light receiving surface of this image sensor 20 is configured to be larger than /l1li of the microfilm l. The output signal (analog signal) F1 input signal control section 8B of the image sensor 80 is composed of a microprocessor or the like, and controls each section of the apparatus. Room 6 is a storage unit, including )tOM (read only memory) and R
It is composed of an AM (random access memory) and exchanges data with the control section 2B. ROM1 of this storage unit 26
A program used in the microprocessor 1:ff1llha is stored therein, and image data based on the output signal of the image sensor 20 is stored in the RAMk. This l (AM's Memory Capacity Co., Ltd., microfilm l's l)
- The storage capacity is set to be able to store image data for one screen. ◎ 28 is an output interface 7 ace which creates a video signal based on the output signal of the control and gz sense.

24 is a CRT display, and based on the video signal supplied from the output interface 28, CRTII
This is for displaying on rM. 8゛5 is the copying department;
Copying is performed on paper based on the video signal supplied from the output interface 7/8 238. CR mentioned above
The T-display 24 and the copying section 85 are each connected to the output interface 28 by a knurple.
Each installation position #i is arbitrarily determined.

Next, the operation of this embodiment with the above-described configuration will be described with reference to FIG.

First, a transport control section (not shown) is hooked, and the microfilm tte is fed so that WJf4 to be read is directly below the light receiving surface of the image sensor zO. As a result, the irradiated light from the lamp 7 passes through the target screen and reaches the light receiving surface of the image sensor zO. And image sensor 2
0 sequentially assesses the image mapped on the light-receiving surface, and sequentially supplies the resulting output signals to the input interface 7/8 21.

And the control section! The image data supplied from the two-butterfly input interface 21 is sequentially stored in the RAM of the storage section z6. As a result, all the image data of 1i1111if is stored in the RAM.

Next, the control unit z8 sequentially reads out the image data of the - side stored in the RAM, and outputs the output interface 7Ace 8.
Supply to B. As a result, the video f1 corresponding to the above-mentioned 1111 is supplied to the RT display 84 and the copying section 25 from the output interface 7 and 8B. As a result, the CRT display 84 projects both sides on its CBTli surface, and the copying section 85 copies the negative side onto a sheet of paper.

If a one-dimensional image sensor is used instead of the image sensor zO in this embodiment, when the /dimensional image sensor reads IlrM, the microfilm l is conveyed in small steps from the tip of one side. ◎ Then, the one-dimensional image sensor scans its light-receiving surface every l steps, and the resulting output signal is supplied to the input interface fit, thereby achieving the same effect as in step 1. .

As explained above, according to the present invention, there is a light source that illuminates an image on a microfilm, an image sensor that receives light from the light source that has passed through the image, and image data that is created based on the output signal of the image sensor. and a storage unit that stores the image data for at least /li1@J of the microfilm,
Since the image is reproduced based on the image data of /1M plane in the target memory section, no optical path is required, the entire device can be made compact, and the copying section and the display section can be installed at arbitrary positions. be able to.

[Brief explanation of the drawing]

1st Il! Q is a schematic diagram showing the configuration of a conventional microphone film reading device, and FIG. 2 is a block diagram showing the configuration of an embodiment of the present invention.

Claims (1)

[Claims] a light source that illuminates the image on the microfilm; an image sensor that receives the light from the light source that has passed through the image;
an interface unit that creates image data based on the output signal of the image sensor; a storage unit that stores the image data for at least 1/1iil of the microfilm; and a reproduction unit that reproduces the image based on the image data stored in the storage unit. 1. A 12-microphone film reading device comprising: an image reproducing unit.