JPH05328030A - Film picture reader - Google Patents

Abstract

PURPOSE:To safely hold films, and to easily attain a positioning on a platen at the time of preparing a copy by scanning the pictures of the films, in a color electronic photograph copying machine. CONSTITUTION:A positioning member 15 is attached to a platen 2 of a picture reader, and a protrusion 24 is restraint to a recessed groove part 16 of the positioning member, so that a film holder 20 can be set. In the film holder 20, a transparent holder part 22 is arranged at the inside of an opaque mount 21 constituting a frame member, and the plural 35mm films are arranged and held on the transparent holder part 22. Then, the films are irradiated with a light by using a projector and a mirror member, and scanned by a scanning device, so that the reading of the pictures can be attained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for making a solid copy by projecting an image of a negative film or a positive film on an image reading apparatus using a projector, and more particularly to a 35 mm film for positioning. Hold it on the platen using the member of, and scan in the state that no excess light is incident from the surroundings,
The present invention relates to a film image reading device that enables a copy to be made.

[0002]

2. Description of the Related Art In an image forming apparatus such as a color electrophotographic copying machine, a means for setting a color original on a platen and scanning the image of the original with a scanning device to make a color copy is used. Color electrophotographic copiers may be required to scan an image on a negative film to make a color copy. Therefore, for example, as shown in JP-A-1-129576, the image of the film is projected on the scanning section of the color electrophotographic copying machine by using a projector, and the scanning information of the image is used.
Devices have been proposed for making color copies.

In the conventional image reading apparatus, a color film is mounted on a projector, and light of an image projected from the projector is reflected through a mirror member and passed through a Fresnel lens set on a platen. , Using a mechanism that allows the scanning device to read. Then, by using the projector as described above, the image on the film can be reproduced as a color copy in an enlarged state. Further, in the image reading apparatus, the negative film is supported by a holding member such as a film holder, so that the film can be safely handled.

[0004]

In the conventional image reading apparatus as described above, the image on the film can be enlarged to make a copy, but the negative or positive film is reproduced as a copy in a solid print state. Can not do it. However, when using a color electrophotographic copying machine,
There is a demand to make a copy of a 35 mm film image in a solid print state and to study based on the copy. However, in a color electrophotographic copying machine that reproduces a conventional film image, it is difficult to obtain a so-called solid print copy with a large number of 35 mm films arranged.

Therefore, it has been proposed that the film is set directly on the platen, and the image on the film is scanned while the light is irradiated from above. However, as shown in the above-mentioned conventional example, when the film is set under the Fresnel lens, in order to scan the image of the film under the optimum condition, the film positioning and the extra light are required. It is necessary to accurately set the position where light does not enter.

When the film is directly handled without a cover, the image surface of the film may be damaged. In particular, when scanning an image on a film, since the emulsion surface is located on the upper side, there is a problem that the emulsion surface of the film is easily damaged when the mirror member or the like is moved on the film. In addition, if the film is of a large size or special, scratching the film can be a serious problem, requiring the operator to handle the film with great care, There is a drawback that the scanning efficiency cannot be improved. Further, when a color film is directly placed on the platen for scanning, there is no positioning mechanism for the film, so that the film position and the image reading area may be misaligned and the entire film image may not be copied.

[0007]

SUMMARY OF THE INVENTION The present invention solves the problems of the film scanning device as described above, and enables the film to be scanned while being housed in a film holder and protecting the film holder and the mirror member. It is an object of the present invention to provide a film image reading apparatus capable of accurately positioning and on the platen and preventing unevenness in the scanning light amount.

[0008]

According to the present invention, there is provided a film holding portion made of a transparent material capable of holding a sleeve negative or a positive film, and a thin plate which covers the periphery of the film holding portion and constitutes a light shielding portion. A film holder having a frame-like frame and a positioning protrusion formed on at least one side of the frame is used. A positioning member attached to one side of the platen of the image reading device, and
While pressing the film holder supported by the platen via the positioning member, a mirror member positioned on the platen is combined, a projector for irradiating light to the mirror member is arranged, and the film is transmitted. It constitutes a device for reading light with a scanning device. Further, in the film image reading apparatus of the present invention, in addition to holding a plurality of 35 mm films arranged in parallel and scanning at one time, a means for holding a large size film is provided in the film holder. Alternatively, the film can be positioned on the platen while being supported by the cover member.

By using the film holder constructed as described above, the film is set on the platen in a state of being protected, and light is emitted through the mirror member to reproduce as a copy, thereby making a copy in a solid baking state. Can be easily obtained. Further, in the apparatus of the present invention, the film and the mirror member can be positioned accurately at the scanning position by the positioning member provided on one side of the platen, so that the state of the light irradiated on the film can be improved. You can set it and get a clear copy.
Further, since the film to be scanned can be handled while being housed in the transparent holder portion, the film is not damaged and the burden on the operator can be reduced.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The film image reading apparatus of the present invention will be described with reference to the illustrated example. In the example shown in FIGS. 1 and 2, the image forming apparatus 1 can use an apparatus configured as a color electrophotographic copying machine. In the image reading device shown in FIG. 1, a device for scanning an image of a document set on the platen 2 by a scanning device 3 and causing the image information to enter a photoelectric conversion device 8 such as a CCD and outputting it as a digital signal. I am configuring. In the scanning device 3, a full rate carriage 4 and a half rate carriage 6 are arranged, the light of a lamp 5 provided on the full rate carriage 4 is applied to an original, and the reflected light is reflected by a plurality of mirrors provided on two carriages. Is used to form an image on the CCD 8 via the lens 7.

In the image reading apparatus of the present invention,
When scanning the light transmitted through the film, it is possible to set a control mode in which the light emitted from the film by the projector is incident on the CCD using the scanning device without turning on the lamp. Further, in the image forming apparatus 1 of the present invention, as in the case of a general digital electrophotographic copying machine, the image information obtained by the CCD is used to transmit the image information to the writing device for the photosensitive drum, and Means for forming a toner image on the drum can be used.

In the image forming apparatus having the image reading mechanism, the side table 10 is arranged on the side of the apparatus body, and the projector 11 is attached to the side table 10. When the 35 mm film 12 is set on the projector 11, a means for irradiating the platen with the image of the film can be used. A mirror member 30 is arranged at a predetermined position of the platen 2 corresponding to the projector 11, and a mechanism for irradiating the platen 2 with light emitted from the projector 11 is configured.

The mirror member 30 and the film holder 20 set on the platen are shown in FIGS.
Positioning is performed as shown in FIG. In the example shown in FIG. 2, the positioning member 15 is fixed to the front side portion of the platen 2, and the film holder 20 and the mirror member can be positioned with respect to the positioning member 15. Any means can be used as a means for fixing and holding the positioning member 15 on the platen 2. However, in order to accurately set the position for setting the film, a predetermined position around the platen is required. It is advisable to set a target mark on the.

As shown in FIG. 3, the positioning member 15 is provided with a recessed groove portion 16 for positioning the film holder and the mirror member, and the recessed groove portion 16 is provided.
The film holder 20 is fixed with the positioning protrusions 24 of the film holder 20 aligned with. In addition, as shown in FIG. 2, the side table 10 arranged on the side of the apparatus main body is provided with a portion to which the projector 11 is attached and a stocker portion 13, and the stocker portion 13 is provided with another portion. A film holder 20a supporting the film can be placed. In the example shown in FIG. 2, the film holder 20a is configured to hold a large-sized film so that a large-sized film other than the 35 mm film can be used to read an image.

As described above, the film holder 20 set by holding the film on the platen is
A structure as shown in FIG. 4 can be used. In the film holder 20 shown in FIG. 4, a transparent holder portion 22 for inserting and holding a plurality of films in parallel is constituted by using a plastic film member, and a film inserting portion is provided on one side portion thereof. 23 are arranged. Then, a frame portion made of an opaque mount 21 is arranged around the transparent holder portion 22 so that only the light radiated to the film that passes through the film is transmitted to the scanning device.

The mount 21 forming the film holder 20 can be formed by punching out a thin opaque plastic sheet, and the transparent holder portion 22 arranged inside the mount 21 has a light transmittance. It can be configured by laminating two thin sheet members made of good plastic and pasting them together. Then, by inserting and holding a 35 mm film cut into several frames between the transparent sheet members, only the light transmitted through the film can be transmitted to the scanning device.

The mirror member 30 used in combination with the film holder 20 may have a structure as shown in FIG. In the mirror member 30 shown in FIG. 5, with respect to the base frame 31,
A mirror frame 35 is supported via a hinge 33, and a stopper arm 34 is provided between both frames so that the tilt angle of the mirror frame can be adjusted. Further, in the base frame 31, a Fresnel lens is provided inside the frame through an opening 32, and a film holder is arranged at a position corresponding to the opening 32.

The mirror 36 is mounted on the mirror frame 35.
Is attached, and the tilt angle of the mirror frame 35 is adjusted by the arm 34 so that the light emitted from the projector is reflected on the platen. A positioning protrusion 37 is provided so as to project on one side of the base frame 31, and the positioning protrusion 37 is disposed on the positioning member 15.
The mirror member can be positioned by combining with the concave groove portion 16. Then, the light reflected by the mirror is passed through the film through the Fresnel lens so that the image on the film can be read on the surface of the platen. In the apparatus of the present invention, the light passing through the film is directly transmitted to the optical system of the scanning device, and the light is imaged by the lens so that it can be obtained as an electric signal.

When scanning a film image using the film holder 20 of the present invention configured as described above, first, the positioning member 15 is attached to one side of the platen, and the positioning member 15 is attached to the positioning member 15. Then, the film holder 20 for holding the film is positioned and set. Then, the mirror member 3 is placed on the film holder.
0 is set, and the positioning protrusion 37 of the mirror member 30 is set.
By positioning the with respect to the positioning member 15,
Set the condition for scanning the film. Then, as described above, the film is set on the platen, and light is emitted from the projector, but the light of the image that has passed through the film is made incident without the lamp being turned on in the scanning device. Therefore, when the image on the film is scanned by the image reading device, the two carriages constituting the scanning device are operated in the same manner as in the case of scanning the normal image, and the light passing through the film is imaged on the CCD. Then, the image information can be output as an electric signal.

That is, in the film image reading apparatus of the present invention, when scanning an image of a normal document, the document set on the platen can be scanned by turning on the lamp. On the other hand, when scanning a film image, for example, a button for selecting a film scanning mode is provided on the control panel, and when the button is pressed, the scanning device does not turn on the lamp. Can be controlled. In addition, the film holder can be set at a position where the projection lens has good performance, and the image can be scanned while the light emitted by the mirror is transmitted through the film with uniform intensity. You can

Further, in the apparatus of the present invention, the size of the transparent holder part of the film holder can be set according to the size of the film, and an opaque mount is arranged around the transparent holder part. As a result, it is possible to scan an image in a state where no extra light is incident on the scanning device. Further, in the apparatus of the present invention, as the means for fixing and holding the film holder to the platen, it is possible to use any positioning means other than the combination of the concave groove and the projection. Can be fixed and provided around the platen in advance.

[0022]

Since the film image reading apparatus of the present invention uses the film holder configured as described above and the mirror member in combination, the film is set on the platen while being protected by the transparent holder. Then, by irradiating light through the mirror member and reproducing it as a copy, it is possible to easily obtain a solid copy copy. Further, in the apparatus of the present invention, the film and the mirror member can be accurately positioned at the scanning position through the positioning member provided on one side of the platen, and the state of the light irradiated on the film is good. Since it can be set to, a clear copy can be obtained. Then, the film to be scanned can be handled while being accommodated in the transparent holder part, and in the film holder, the transparent holder part can be configured according to the size of the film, and the film holder can hold the film. In this case, the emulsion surface of the film does not come into direct contact with other objects, so that the film is not damaged and the burden on the operator can be reduced.

[Brief description of drawings]

FIG. 1 is a side view of a film image reading apparatus of the present invention.

FIG. 2 is a plan view of the image reading device with a film holder attached.

FIG. 3 is an explanatory diagram of a state in which a film holder is mounted on the platen via a positioning member.

FIG. 4 is a plan view of the film holder of the present invention.

FIG. 5 is a perspective view of a mirror member used in the present invention.

[Explanation of symbols]

1 image forming device, 2 platen, 3 scanning device, 10 side table, 11 projector,
12 film, 15 positioning member, 16
Groove, 20 film holder, 21 mount,
22 transparent holder part, 24 positioning protrusion,
30 Mirror Member, 31 Base Frame, 35
Mirror frame, 36 mirror, 37 positioning protrusion.

Claims (1)

[Claims] 1. A film holding portion made of a transparent body capable of holding a sleeve negative or a positive film, a thin plate-like frame body which covers the periphery of the film holding portion and constitutes a light shielding portion, and the frame body A film holder having a positioning protrusion formed on at least one side, a positioning member attached to one side of the platen of the image reading device, and a state in which the film holder supported by the platen is pressed via the positioning member, A mirror member that is positioned on the platen is combined, and a projector that emits light toward the mirror member is arranged.
A film image reading device characterized in that the light transmitted through the film is read by a scanning device.