JPH01135263A - Reader for film image - Google Patents

Abstract

PURPOSE:To execute a desired magnification work even at the time of a large film by forming a beam splitting means of plural sheets of reflecting mirrors having a common arm part located on an optical axis. CONSTITUTION:Light beams emitted from a light source 23 pass the image part of a microfilm 21, and thereafter, they are split into two beams by a roof mirror 28. The mirror 28 is equipped with two sheets of mirror pieces 28a and 28a in which one edge parts are mutually abutted at a relation mutually rectangular. A ridgeline part 28b as the common arm part to be formed by abutting the one edge parts of the mirror pieces 28a and 28a mutually is arranged in a axis-orthogonal condition on the optical axis of an image-forming lens 26. Consequently, the emitting light from the lens is divided at both sides of the mirror pieces 28a and 28a. Respective beams are individually radiated and light-received to photoelectric converting elements 27 and 27, respectively. At such a time, since the approximately each half of the whole projecting image is shared and light-received at respective elements 27 and 27, the magnification work sufficient in the view of a size can be executed.

Description

Detailed Description of the Invention (Technical Field) The present invention relates to a film image reading device, and particularly to a film image reading device that reads a film image by irradiating a light image transmitted through a microfilm onto a photoelectric conversion element. The present invention relates to an image reading device.

(Prior art) Conventionally, various types of information such as documents generated in large quantities are recorded at high density on microfilm, and the recorded images on the microfilm are enlarged and projected to a predetermined size each time as necessary.
Alternatively, various film image reading and reproducing apparatuses have been proposed, such as enlarger printers and reader printers, which read the image with an image sensor and reproduce it by printing out the image. In such devices, images recorded on microfilm are enlarged and projected onto a display unit such as a screen for observation, or the displayed image is monitored by an operator and then printed on the display unit. according to the copy size mark indicating the image area that has been
The display image is recorded on recording paper of a predetermined size.

For example, in the apparatus described in Japanese Unexamined Patent Publication No. 62-16664, as shown in FIG. After passing through the imaging lens 5, the light flux that has passed through the film image 2 is reflected by the movable mirror 6, and further passes through the magnifying lens 7 and is irradiated onto the screen 8. As a result, an enlarged image 9 is projected onto the screen 8.

On the other hand, when printing out film image 2,
The movable mirror 6 is rotated to the position shown by the broken line, and the light beam that has passed through the film image 2 is reflected by the fixed mirror 11, and the optical image of the film image 2 is magnified by, for example, 2.78 times to form an image sensor. Photoelectric conversion device (COD)
12.

This photoelectric conversion element 12 is mounted on a carriage 15 that is provided to be movable back and forth with respect to guide rails 13° 14, and is moved at a predetermined speed by drive wires 16° 17 to perform reading in the sub-scanning direction. It is now possible to Furthermore, reading in the main scanning direction is performed simultaneously by a pixel column consisting of a large number of minute pixels.

As the photoelectric conversion element 12, one with a high pixel density is generally used. For example, a 7 μm pixel is
A structure in which the pixels are arranged in rows in the main scanning direction is employed. In this case, the effective pixel length SP is 35 m.

However, in such conventional devices, the size of the film image to be read is limited due to the size of the photoelectric conversion element 12, and if the image is large and extends beyond the photoelectric conversion element 12, the necessary This means that reading functions cannot be performed. For example, the readable projected image on the photoelectric conversion element 12 for 16# film as described above has a size of at least 35 seconds or less on the light receiving surface of the photoelectric conversion element 12, and the image fineness is 71 lines. /m(1
/7μm×2) or less. On the other hand, 3
5an width microfilm is specified (J l5Z60
04), the maximum film image size is approximately 28
#+X39.6m, and the fineness of the image resolution is a maximum of 135 lines/un.

Therefore, when reading an image on a 35-inch microfilm with a single photoelectric conversion element, it is almost impossible to enlarge the image size in order to prevent the image from protruding from the photoelectric conversion element. That will happen. on the other hand,
To increase image resolution, use one maximum image resolution cuff/
This means that it is necessary to project a film image with a maximum resolution of 135 films/film at a maximum resolution of 135 films onto a photoelectric conversion element having a photoelectric conversion element, which is enlarged approximately twice as much. As described above, in the conventional apparatus in which one photoelectric conversion element is provided corresponding to one projection lens to perform a reading operation, there is a problem that large film images cannot be read properly.

Furthermore, in conventional reading devices, the photoelectric conversion element is moved to perform sub-scanning reading. However, in such a scanning system, the sub-scanning movement must be performed over the image width of the enlarged image, resulting in a large amount of movement, which requires a drive system that moves the photoelectric conversion element back and forth at high speed. Therefore, the cost inevitably increases. Moreover, the large amount of sub-scanning movement means that the angle of view of the light beam irradiated from the projection lens to the photoelectric conversion element increases to, for example, a half angle of view of 20 to 22 degrees, which causes the photoelectric conversion element to expand. While the projected image is being moved from one end to the other, the image illuminance changes significantly, for example, by about 20%, due to the so-called COS θ law, the focusing characteristics of the focusing lens, and the like. For this reason, with conventional equipment,
There is a problem in that complicated light amount correction (shading) must be performed. Furthermore, since the half angle of view of the condensing lens is large, there is a problem in that the resolution of the enlarged image in the end region in the sub-scanning direction is reduced.

(Objective) Therefore, it is an object of the present invention to provide a film image reading device that can read images properly and efficiently even on large-sized films.

(Structure) In order to achieve the above object, the first invention provides a film image reading device that reads a film image by projecting an optical image obtained by transmitting a film onto a photoelectric conversion element using a projection lens. A beam splitting means is provided between the projection lens and the photoelectric conversion element for dividing the light emitted from the projection lens into a plurality of beams, and the photoelectric conversion element is configured to receive each divided beam. The beam splitting means includes a plurality of reflecting mirrors arranged so as to have a common side located on the optical axis of the projection lens.

In a device with such a configuration, the light transmitted through the film is split into a plurality of light beams by a light beam splitting means, and the light beams are separately irradiated and received by a plurality of photoelectric conversion elements to read an image. It is now possible to

The second invention also provides a film image reading device that reads a film image by projecting an optical image of the film image onto a photoelectric conversion element using a predetermined optical system including a projection lens. A beam splitting means for dividing the light emitted from the projection lens into a plurality of beams is provided between the photoelectric conversion element, and the photoelectric conversion element is arranged to receive each divided beam, and the photoelectric conversion element is arranged to receive each divided beam. The beam splitting means is formed of a plurality of reflecting mirrors arranged so as to have a common side located on the optical axis of the projection lens, and the optical system is arranged to have a common side located on the optical axis of the projection lens. It has a configuration that allows it to be scanned.

In a device with such a configuration, the light transmitted through the film is divided into multiple photoelectric conversion elements and is irradiated and received separately, and the optical system is moved when reading the image. Reading scanning is performed in the sub-scanning direction.

Embodiments of the present invention will be described in detail below with reference to the drawings.

First, a film image reading and reproducing apparatus to which the present invention is applied includes a main body part on which a microfilm to be read is mounted and irradiated with light, a display part installed on the upper side of this main body part, and a display part installed on the upper side of this main body part. It consists of a laser printer installed at the bottom.

The main body section is provided with a reading device as shown in FIG. In this reading device, the microfilm 21 is attached to and held by an aperture card 22, and the front side portion of the microfilm 21 (
(left side part in Fig. 1) includes a light source 23 and a condensing lens 2.
A lighting unit 25 having 4 is arranged. Also,
An imaging lens 26 is disposed in the inner part of the microfilm 21 (the right part in FIG. 2). and,
The illumination unit 25 and the imaging lens 26 are integrally mounted on a support stand (not shown), and these optical systems are arranged so that their optical axes coincide.

The imaging lens 26 has a 2.38x magnification function.

Further, a film holder (not shown) that holds the aperture card 22 is engaged with and attached to a groove rail, and is slidable in the horizontal direction that is the length direction of the image area of the microfilm 21, that is, in the sub-scanning direction. It is attached to be movable and slidable in the vertical direction, which is the width direction of the image section, that is, in the main scanning direction. Then, the film holder is adjusted to move in the left-right direction by rotating the left-right positioning knob, and the film holder is adjusted to move up and down by rotating the vertical positioning knob, and the position of the microfilm 21 is adjusted. It is now possible to By making it possible to adjust the position of the microfilm 21 in this way, the position can be easily adjusted when displaying or copying images, and positional deviations during display or copying can be corrected. be able to.

Further, the support stand that integrally holds the illumination unit 25 having the light source 23 and the condensing lens 24 and the imaging lens 26 is moved in the sub-scanning direction, which is the image width direction of the microfilm 21, by a feeding device (not shown). It is configured such that a predetermined amount is sent to each.

On the back side of the imaging lens 26, a movable mirror (not shown) is swung to reflect the light beam emitted from the imaging lens 26 upward or to allow it to pass through without being blocked. It is set in. Further to the rear side of this movable mirror, a photoelectric conversion element (COD) 27 that reads the optical projection image emitted from the imaging lens 26 is provided.
is installed above the movable mirror, and a display device for projecting and displaying a light projection image emitted from the imaging lens 26 is installed.

Further, in the light beam emitted from the imaging lens 26 to the photoelectric conversion element 27 side, a roof-shaped roof mirror 2 as a light beam splitting means arranged at a predetermined angle with the light beam is included.
8 is installed, and two photoelectric conversion elements 27.degree. 27 are installed at predetermined positions so as to receive each of the light beams divided into two by the roof mirror 28.

The roof mirror 28 has two mirror pieces 28a whose one end edges abut at right angles to each other.

28a is provided. Both mirror pieces 28a, 2
A ridgeline portion 28b serving as a common side formed by one end edge portions of 8a abutting each other is disposed on the optical axis of the imaging lens 26 in a state perpendicular to the axis. The emitted light is split into both sides of both mirror pieces 28a, 28a with the optical axis as the center.

The photoelectric conversion elements 27 are arranged in the reflection areas of both mirror pieces 28a of the roof mirror 28, respectively. These two photoelectric conversion elements 27° 27 are connected to the pixel row 27
a, 27a are arranged to face each other in a substantially parallel state within the same plane, and both mirror pieces 28a, 28a
It is arranged so that it receives a slightly wider portion of the reflected light beam on one side than about half.

In this case, if the magnification of the imaging lens 26 is m, then
In a state where the optical axis of the imaging lens 26 intersects approximately at the center of the entire area I in the width direction of the image area of the microfilm 21,
The enlarged projected image of the image area (1) above the optical axis is represented by 11 m, and this enlarged projected image 11 m is one of the mirror pieces 28
The light is reflected by a and is received by a photoelectric conversion element 27 facing thereto. The effective pixel row length SP of the photoelectric conversion element 27 is set to be equal to or slightly longer than the enlarged projected image 11m.

Also, the enlarged projected image of the image area below the optical axis is 1
2m, this enlarged projected image 12m is reflected by the other mirror piece 28a, and the photoelectric conversion element 2 facing it is
The light is received at 7. The effective pixel row length SP of the photoelectric conversion element 27 is set to be equal to or slightly longer than the enlarged projected image I2m.

The ridgeline portion 28b of the roof mirror 28 is formed and arranged with high precision, so that the ridgeline portion 28b of the roof mirror 28
The enlarged microfilm image is projected onto each effective pixel column of 7.27 without overlapping or missing.

Images on 35#1 microfilm intended for industrial drawings are based on the following JIS standards that correspond to the size of the drawing manuscript.
Created in accordance with the standard reduction rate.

A commonly used photoelectric conversion element (7 μm x 7 μm, 50
The relationship between the image and the photoelectric conversion element when reading with 00 pixels) will be explained. The maximum image size in the width direction of the microfilm is 28 m, which is magnified 2.38 times and projected onto the photoelectric conversion elements, so that each photoelectric conversion element reads 1/2 the length of the microfilm. In this case, the size of the enlarged image on each photoelectric conversion element is 33.32M (=28
/2x2.38>, and converting this to the number of pixels is 4
This results in 760 (=33.32/7 μm) dots. On the other hand, the dimension of the corresponding drawing manuscript is approximately 420 m (-841/2) at the maximum value (Ao), so the reading density is approximately 11 dots (5.5 lines/mm = 4760/4
20), and similarly, from the dimensions of the drawing original corresponding to each reduction ratio, the reading density is 16 dots (8 lines/#) for A1 size and 22 dots (111 lines) for A2, A3, and A4 sizes. This is the fineness of the drawing manuscript that corresponds to the fineness of the film image shown in the table above, that is, A is 4.5.
Lines/mm, 5.0 lines/# for A1, 7 for A2, A3, A4
．． Since the value exceeds 1 line/mm, by using the microfilm image reading device according to the present invention, it is possible to read an extremely high-density image, and from this, it is possible to obtain an enlarged copy image with high resolution. It is something that can be done.

Further, the reading device in this embodiment is equipped with a sub-scanning means as shown in FIG. As described above, the two photoelectric conversion elements 27 are arranged in the same plane so that the light transmitted from the film is divided into a plurality of light beams and received. An optical system for projecting an image, that is, an illumination unit 25 having a light source 23 and a condensing lens 24, and an imaging lens 26 are integrally mounted on a support stand (not shown). The optical system formed from these is configured to be integrally scanned and moved in the sub-scanning direction of the film image.

In such an embodiment, when the film image of the microfilm 21 is enlarged and displayed on the screen, the film image of the microfilm 21 held on the aperture card 22 is illuminated by the illumination unit 25, and the film image of the microfilm 21 is illuminated by the illumination unit 25. After the transmitted light is magnified by the imaging lens 26, it is reflected by a movable mirror and changed upward, and then passes through a magnifying lens selected to have a predetermined magnification, is magnified to a required magnification, and is enlarged and projected onto a screen. . The enlarged image of the microfilm 21 projected onto the screen is focused by rotating the focusing knob, and the film holder is adjusted by rotating the left/right positioning knob and the vertical positioning knob. The position of the projected image is adjusted by adjusting the movement in the left and right and up and down directions respectively.

To obtain a copy of the enlarged projected image on the screen, first align the image position with the frame line and size display symbol printed on the screen, operate the selection switch to select the desired paper, and adjust the image density using the adjustment knob. After adjusting the number of copies and setting the number of copies by key operation, the start switch is turned on to start the copying operation.

By this operation, the movable mirror is swung, and the opening of the display device is closed by the movable mirror. As a result, external light is prevented from entering into the main body from the screen side, and at the same time, the film-transmitted light passes through the portion directly below the movable mirror and is received by the photoelectric conversion element 27 side.

The image scanning procedure for the microfilm 21 in this case will be described below.

First, the light emitted from the light source 23 passes through the condensing lens 24, passes through the image area of the microfilm 21, and then passes through the imaging lens 26, directly below the movable mirror rotated as described above. The light beam passes through the roof mirror 28, which serves as a beam splitting means, and is divided into two beams. Each of these light beams is irradiated and received by the photoelectric conversion elements 27 and 27 separately. At this time, each photoelectric conversion element 27.27 receives approximately half of the total projected image, so that sufficient enlargement can be performed in terms of size. Also, at this time, each effective pixel column of the two photoelectric conversion elements 27, 27 receives light in such a state that the enlarged image of the microfilm image is projected without overlapping or missing in the main scanning direction. This eliminates the need for splicing control of the read image signals in the main scanning direction, and eliminates deviations and omissions of the image read signals. Furthermore, in this case, the magnification of the pixel row 27a of both photoelectric conversion elements 27 is the same over its entire length, and there is no reduction in resolution due to an increase in astigmatism.

Furthermore, if the enlarged image of the film image is divided into two photoelectric conversion elements 27, 27 and read, the transfer of the signal charges accumulated in the photoelectric conversion elements by the shift register is performed by both photoelectric conversion elements. The elements 27 and 27 perform the process simultaneously in parallel, so that the transfer time can be shortened and the transfer frequency can be kept low compared to the case where the projected image is read by one photoelectric conversion element. That is, simply extending the pixel length of the photoelectric conversion element cannot be adopted because the transfer frequency will also be extended proportionally. Furthermore, as in this embodiment, if multiple photoelectric conversion elements are installed corresponding to a single projection lens, the focal length and brightness can be improved compared to the case where a single photoelectric conversion element is used. There are very few occurrences of overlaps, omissions, or uneven images in the copied images.

In the sub-scanning movement operation, as shown in FIG.
, by integrally moving the condensing lens 24 and the imaging lens 26 in a direction perpendicular to the optical axis indicated by the arrow. This scanning movement operation is performed by rotational driving of a pulse motor. At the start of scanning, the control circuit receives a signal from the laser printer's registration sensor that detects the leading edge of the roll paper, and based on this signal, the scanning pulse motor rotates in accordance with the selected copy size signal. Can be launched up to a number. As a result, the support base is moved so that the imaging lens 26 is positioned from the reference position indicated by C in FIG. 2 to the run-up start position indicated by S. The optical axis of the imaging lens 26 is at the scanning start position S
When the position signal is reached, the position signal is emitted as a pulse count applied to the pulse motor, and a reading operation by the photoelectric conversion element 27° 27 is started.

While the number of applied pulses corresponding to the selected copy size is applied to the pulse motor, the imaging lens 26 is moved at a predetermined speed from the position indicated by the symbol S, through the position indicated by the symbol C, and to the position indicated by the symbol E; The sub-scanning movement is then completed. Further, as the imaging lens 26 moves, the light source 23 and the condensing lens 24 are also moved in the same way. In this case, the reading scanning speed is determined by the copy size and the imaging lens 2.
It is controlled based on the enlargement magnification of 6. After finishing sub-scanning,
The pulse motor is driven to rotate in the opposite direction, and the support base, that is, the light source 23, the condensing lens 24, and the imaging lens 26
is returned to the reference position. The movable mirror is returned to its original position by a signal generated when the support base is returned to its reference position, and the film image is returned to the state where it is enlarged and projected onto the screen.

Here, the distance by which the imaging lens 26 is moved for sub-scanning is determined by an amount corresponding to the projection magnification m of the imaging lens 26 and the selected copy size, and by a scanning movement speed corresponding to the copying magnification described later. This is the amount plus the run-up distance to reach the target. That is, the movement distance SL1 for sub-scanning is the length of the microfilm image in the sub-scanning direction I. , and the magnification ratio of the enlarged projected image is m (=b/a). From these proportional relationships, SL1=ml. / (1+m)T”.This S
L is smaller than Io. Note that since the size of the pixel of the photoelectric conversion element 27 is 7 μm×7 μm, the width of the pixel row 27a can be ignored in the above discussion.

On the other hand, when sub-scanning is performed by moving the photoelectric conversion element 27 side (conventional case), the moving distance SS required for sub-scanning is the width dimension I of the projected image. It is equal to m. This SS is larger than ■ above S11.
considerably larger than

That is, it is expressed as SLl<Io<SS. By moving the imaging lens 26 to perform sub-scanning in this way, the moving distance required for sub-scanning can be made extremely small.

In addition, the so-called half-field angle θ when reading and scanning an enlarged image is only about 5.5 degrees, which is also much smaller than when sub-scanning is performed by moving the photoelectric conversion element. It will be done. Furthermore, since the optical axis of the condensed illumination and the optical axis of the imaging lens are always moved coaxially, the change in illuminance of the enlarged image during scanning is about 2%, and there is almost no decrease in the resolution of the enlarged image. As a result, it is no longer necessary to perform light amount correction (shading) corresponding to scanning movement as in the prior art.

Furthermore, there is also a conventional sub-scanning reading method in which the microfilm side is moved. However, the scanning movement distance SF of the microfilm in this case is expressed as SF-(Iom+sD)/m, and the scanning movement distance according to the present invention SL1=m I
o/(1+m), SLl<SF, and it can be seen that the scanning method according to the present invention is superior to this scanning method as well.

In this way, the scanning method according to the present invention can shorten the scanning distance compared to any conventionally employed scanning method.

Further, the photoelectric conversion element 27 needs to be positioned with high precision on the imaging plane of the enlarged projected image of the microfilm 21.

In other words, the pixel rows of both photoelectric conversion elements 27°27 must be located in the same plane with a deviation of 7 μm or less from each other, and the accuracy of the amount of overlap between the reading areas of both pixel rows must be 7 μm or less. As in the embodiment, by arranging the two photoelectric conversion elements 27, 27 symmetrically with respect to the roof mirror 28, it is possible to provide a space for attaching a fine adjustment mechanism to both photoelectric conversion elements 27, and thereby The photoelectric conversion element 27 can be positioned with high precision.

Furthermore, as in this embodiment, by arranging both photoelectric conversion elements 27° 27 in the same plane including the optical axis and eliminating the distance between both pixel columns, the time of the image reading signal can be reduced. It is possible to eliminate misalignment (phase shift), eliminate the need for complex control such as phase correction, and facilitate signal control during image creation during printout.

On the other hand, a film image created at a scale factor corresponding to the original size of the image is projected onto a screen at an enlargement factor corresponding to the scale factor, and a copy size corresponding to the size of this projected image is selected as a copy size. If specified by a selection switch for performing this, the sub-scanning movement range and sub-scanning movement speed are automatically set according to the selected size signal. Main scanning control is performed by electrically processing an output signal from a photoelectric conversion element, which will be described later. The variable magnification control at this time is automatically performed in accordance with the enlargement magnification signal of the projected image. in this way,
By automatically controlling the sub-scan and main scan, there is no loss of images or inappropriate reduced images.
The required enlarged copy of the microfilm image can be obtained easily and satisfactorily.

Note that, as in this embodiment, it is advantageous if the microfilm 21 is placed in a stationary state during the image reading sub-scanning, since it is possible to prevent the positional shift of the image during reading. Furthermore, when projecting an image onto a screen, the projected image can be positioned by moving the film holder that holds the microfilm 21 vertically and horizontally.

Next, a copy image is created by a laser printer based on the film image signals read by the photoelectric conversion elements 27, 27.

That is, first, in the writing section, laser light emitted from a semiconductor laser as a light source is modulated based on an input image signal, then formed into a predetermined beam diameter by a beam expander, and then reflected by a polygon mirror. The spot light is irradiated onto the photoreceptor drum through an fθ lens. By exposing and scanning the spot light, an enlarged latent image of the film image is formed on the photoreceptor drum.

At this time, the write scan is controlled in synchronization with the read scan by a detection signal from the beam detector. After the enlarged latent image is visualized by a developing device, this developed image is transferred onto recording paper of a predetermined size by a transfer device. The transfer operation is synchronized with the paper feeding operation based on a signal from the registration sensor. Further, the recording paper is selected from roll papers of different sizes based on the operation of a copy selection switch, and is cut into a predetermined length by a cutter provided in the paper feed path. The timing of this cutting is controlled based on a signal from a paper sensor. After the transfer, the recording paper is sent to a fixing device that fixes the developer, and is discharged from a tray provided at an exit portion of the fixing device.

(Effects) As described above, in the film image reading device according to the first invention, a beam splitting means for dividing the light emitted from the projection lens into a plurality of beams is provided between the projection lens and the photoelectric conversion element. At the same time, this beam splitting means is formed from a plurality of reflective mirrors arranged so as to have a common side located on the optical axis of the projection lens, so that it can cover a sufficient amount of light for the light receiving area of the photoelectric conversion element. A margin is created, and the desired magnification effect can be performed even with a large film.Moreover, the transfer time can be shortened and the transfer frequency can be kept low compared to when a projected image is read by a single photoelectric conversion element. In addition, it is possible to reduce variations in focal length and brightness compared to the case where a single photoelectric conversion element is used, and it is possible to effectively prevent overlaps, omissions, and unevenness of images in copied images. . Furthermore, since the film image is projected onto each effective pixel row of the photoelectric conversion element without overlapping or missing in the main scanning direction, there is no need to control the splicing of read image signals in the main scanning direction. There is no deviation or omission of image reading signals.

Further, the film image reading device according to the second invention is configured such that the optical system for the plural photoelectric conversion elements arranged in parallel is scanned and moved in the sub-scanning direction of the film image. It is possible to shorten the scanning distance for any of the scanning methods currently available, and furthermore, it is possible to suppress the so-called half angle of view θ and illuminance changes when reading and scanning an enlarged image to be much smaller than conventional methods. In addition to eliminating the reduction in resolution, light intensity correction (shading) that corresponds to conventional scanning movement is possible.
can be made unnecessary.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is an explanatory perspective view showing the configuration of a film image reading device according to an embodiment of the present invention, and FIG. 2 shows the sub-scanning movement state of the reading device shown in FIG. 1. Plane explanatory diagram, 3rd
The figure is a schematic perspective view showing an example of a conventional film image reading and reproducing device. 21...Microfilm, 23...Light source, 24.
...Condensing lens, 26...Imaging lens, 27.27.
...Photoelectric conversion element, 28...Roof mirror. \\23

Claims (1)

[Scope of Claims] 1. A film image reading device that reads a film image by projecting a light image obtained by transmitting a film onto a photoelectric conversion element using a projection lens, which comprises: the projection lens and the photoelectric conversion element; A beam splitting means for splitting the light emitted from the projection lens into a plurality of light beams is provided between the projection lens and the photoelectric conversion element is arranged to receive each divided light beam, and the light beam splitting means 1. A film image reading device comprising a plurality of reflective mirrors arranged so as to have a common side located on the optical axis of a projection lens. 2. In a film image reading device that reads a film image by projecting an optical image of the film image onto a photoelectric conversion element using a predetermined optical system including a projection lens, there is a gap between the projection lens and the photoelectric conversion element. is provided with a beam dividing means for dividing the light emitted from the projection lens into a plurality of beams, and the photoelectric conversion element is arranged to receive each divided beam, and the beam dividing means The optical system is formed of a plurality of reflective mirrors arranged so as to have a common side located on the optical axis of the lens, and the optical system is configured to be scanned and moved in the sub-scanning direction of the film image. A film image reading device comprising: