JP2006162751A - Film carrier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a film carrier capable of enhancing the flatness of photographic film by surely restraining curl even on the photographic film having large width size. <P>SOLUTION: A base plate 18 with which the back surface of the photographic film F conveyed to the image reading part 14 of the film carrier 10 comes into contact, so that the photographic film F is set at a reference position going along in a light irradiating direction, is arranged in a window part 16 formed at the image reading part 14, and a recessed part 20 is provided in a film conveying direction at the part corresponding to an image frame on the upper surface of the base plate 18. Both edge parts FA in the film conveying direction are pressed by masks 24A and 24B, whereby gutter-like curl having curvature in a film width direction made on the photographic film F is drastically reduced, and air in space formed between the photographic film F and the base plate 18 gets out to the outside through the recessed part 20 with the reduction of the curl. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a film carrier for conveying a photographic film to an image reading position along a conveyance path in order to irradiate light onto an image frame recorded on the photographic film and read an image.

  A photographic film scanner device (digital scanner device) has a film carrier detachably attached to the main body of the device, and conveys the photographic film to a predetermined image reading position along a conveyance path provided in the film carrier. Some image frames recorded on photographic film at this image reading position are read by a CCD area sensor. In such a scanner device, for example, light (film transmission light) emitted from a light source unit and transmitted through a photographic film is imaged on a light receiving surface of a CCD area sensor by a lens unit, and a film carrying an image by the CCD area sensor. The transmitted light is converted into an electrical image signal. Therefore, at the time of image reading on the photographic film, the photographic film conveyed to the image reading position is directed to the lens unit along the light irradiation direction (optical axis direction). It is necessary to maintain a certain position with high accuracy.

Therefore, in flattening the image frame of the photographic film (film strip) with respect to the base plate (substrate) arranged at the image reading position, in the vertical direction and the width direction along both edges of the image frame in the film longitudinal direction. Clamping means for flattening an image frame by applying a clamping force and applying a clamping force in the vertical direction along both edges of the image frame in the film width direction has been proposed (see, for example, Patent Document 1). .
JP-A-7-199366

  The photographic film curls depending on the humidity and the leaving environment, but as described in Patent Document 1, the frame is flattened by applying a clamping force to the photographic film not only in the vertical direction but also in the width direction. The clamping means is useful for eliminating the influence of curl of the photographic film and suppressing the accuracy of screen reading.

  However, it is difficult to keep the image area flat due to the large film width size in the device that reads the image by pressing the Brownie film with a mask. Especially in the dry environment, the film is greatly curled, and the focus of the image becomes sweet. There is. In addition, in the case of a film in which the ratio of the outside of the image area to the entire width of the film is extremely small, such as a brownie film, if the opening area is increased in order to secure the screen opening, the film may fall into the opening. As shown in FIG. 6, it is necessary to close the opening 102 using a transparent member 100 such as a glass plate. However, in that case, there is a problem that when the photographic film F with curl is pressure-bonded with the mask 104, the air between the photographic film F and the transparent member 100 is difficult to escape, and the flatness of the film cannot be secured.

  In view of the above facts, the present invention has an object to provide a film carrier capable of reliably suppressing curling even in a photographic film having a large film width size such as a brownie film and improving the flatness of the photographic film. To do.

  In order to achieve the above object, the invention described in claim 1 is configured to convey the photographic film to the image reading position along the conveying path in order to irradiate the image frames recorded on the photographic film with light. A reference plate for setting the photographic film at a reference position along the light irradiation direction by contacting a back surface of the photographic film provided at the image reading position and transported to the image reading position; Arranged upstream and downstream of the image reading position in the film transport direction and on both sides of the image reading position in the width direction of the photographic film and provided so as to be able to approach and separate from the reference plate, The four pressing members that press and release both edges in the conveying direction and both edges in the width direction on the surface of the photographic film conveyed to the image reading position; And a moving means for moving the pressing member toward and away from the reference plate, and removing air from a space formed between the photographic film and the reference plate when the photographic film is pressed by the four pressing members. And an opening for the purpose.

  According to the first aspect of the present invention, the photographic film conveyed to the image reading position along the film carrier conveying path is conveyed on the film surface by the four pressing members moved in the direction approaching the reference plate by the moving means. Both edges in the direction and both edges in the width direction are pressed. For example, light is irradiated between two pressing members that press both edges in the width direction of the four pressing members and the reference plate. Set to a reference position along the direction. In this state, the recorded image frame is irradiated with light to read the image.

  Here, the curl generated in the photographic film is reduced when the four edges of the film are pressed by the four pressing members. At this time, the air in the space formed between the photographic film and the reference plate is It goes out to the outside through an opening provided in the plate. Therefore, even a photographic film having a large film width size such as a brownie film can reliably suppress curling and improve the flatness of the photographic film.

  The invention according to claim 2 is a film carrier that conveys a photographic film to an image reading position along a conveyance path in order to irradiate the image frames recorded on the photographic film with light and read the image. A reference plate provided at the image reading position for contacting the back surface of the photographic film conveyed to the image reading position and setting the photographic film at a reference position along the light irradiation direction, and the image in the photographic film conveying direction. Located on the upstream side and downstream side of the reading position and provided so as to be close to and away from the reference plate, pressing and releasing both edges in the transport direction on the surface of the photographic film transported to the image reading position A pair of pressing members, a moving means for moving the pair of pressing members toward and away from the reference plate, and the position of the image reading position in the width direction of the photographic film. A pair of conveying means that are disposed on the side and that are in pressure contact with both edges in the width direction on the surface of the photographic film to convey the photographic film to the image reading position; and the photographic film by the pair of pressing members provided on the reference plate And an opening for extracting air from a space formed between the photographic film and the reference plate when pressed.

  In a second aspect of the present invention, the pair of conveying means presses against both edges in the width direction on the surface of the photographic film, and conveys the photographic film to the image reading position. The photographic film transported to the image reading position is pressed at both edges in the transport direction on the film surface by a pair of pressing members that are moved in a direction approaching the reference plate by the moving means. And a reference position along the light irradiation direction while being sandwiched between the reference plate and the reference plate.

  Here, the hook-shaped curl generated in the photographic film is reduced by pressing both edges in the conveying direction on the film surface by a pair of pressing members, and at this time, it is formed between the photographic film and the reference plate. The air in the space escapes to the outside through an opening provided in the reference plate. Therefore, even a photographic film having a large film width size such as a brownie film can reliably suppress curling and improve the flatness of the photographic film.

  According to a third aspect of the present invention, in the film carrier according to the second aspect, the transport means includes an endless belt member that is rotatably provided along the transport direction.

  According to a third aspect of the present invention, the photographic film conveyed to the image reading position along the conveyance path is conveyed by an endless belt member that is rotatably provided along the conveyance direction of the conveyance means. Therefore, even a short photographic film cut every frame or every plurality of frames can be automatically conveyed.

  According to a fourth aspect of the present invention, in the film carrier according to any one of the first to third aspects, the opening is provided along the transport direction at a portion corresponding to the image frame of the reference plate. It is characterized by being a recessed part.

  In the invention according to claim 4, in the photographic film conveyed to the image reading position, the image frames are arranged corresponding to the concave portions provided in the reference plate, and in this state, four pressing members or a pair of pressing members When each edge is pressed by the above, the air in the space formed between the photographic film and the reference plate escapes to the outside through the recess as the curl is reduced by the pressing. Thereby, the flatness of the photographic film can be kept good.

  In reading an image, the light emitted toward the image frame is transmitted through the concave portion of the reference plate, and the entire area of the image frame is irradiated with a uniform amount of light. There is no. In addition, since the opening area can be easily enlarged by increasing the depth with such a recess, for example, a slit-like opening is formed in a region other than the image frame (such as a portion corresponding to the edge) on the reference plate. Compared to a configuration in which the portion is formed, an opening having a larger opening area can be easily formed. Thereby, the exhaustability of the air discharged through the opening (concave portion) from between the photographic film and the reference plate can be improved.

  Since the film carrier of the present invention has the above-described configuration, even a photographic film having a large film width size such as a brownie film can reliably suppress curling and improve the flatness of the photographic film.

  Hereinafter, a film carrier according to an embodiment of the present invention will be described with reference to the drawings.

  The film carrier 10 of this embodiment is shown by FIGS. 1-3. The film carrier 10 is a film carrier for a brownie film and can be attached to and detached from the scanner device. As shown in FIGS. 1 and 2, the film carrier 10 has a base 12 attached to the scanner device. Is provided. The light emitted from the light source unit of the scanner device is irradiated to the image frame P recorded on the photographic film (Browney film) F at the substantially central portion of the base 12, and the light transmitted through the photographic film F (film transmitted light) ) Is imaged on the light receiving surface of an image sensor such as a CCD area sensor by the lens unit of the scanner device, thereby converting the film transmitted light into an electrical image signal by the image sensor and reading the image. 14 is provided. Further, a film transport path R for transporting the photographic film F to the image reading section 14 is formed on the upper surface of the base 12 so as to extend along the width direction of the apparatus (the direction of the arrow W). The film transport path is schematically indicated by an arrow R in the figure.

  As shown in FIG. 2, the image reading unit 14 is formed with a rectangular window 16 having the longitudinal direction in the apparatus width direction, and the photographic film F conveyed to the image reading unit 14 is formed in the window 16. A base plate 18 for setting the photographic film F is fitted at a reference position along the light irradiation direction (see the optical axis L in FIG. 4B).

  The base plate 18 is formed of a transparent glass plate. As shown in FIG. 3, on the upper surface of the base plate 18, there is a film transport direction (in the direction of arrow A) at a portion corresponding to the image frame P of the photographic film F. ), And a pair of convex portions 22A and 22B that form the concave portion 20 are extended at both side edge portions in a direction (film width direction) orthogonal to the film conveying direction. The reference position along the light irradiation direction is constituted by the upper surfaces of the pair of convex portions 22A and 22B (image reading reference surface S). Further, the groove width dimension L1 in the direction orthogonal to the film conveyance direction of the recess 20 is set to be slightly larger than the width dimension L2 of the image frame P.

  A pair of masks 24 </ b> A and 24 </ b> B extending along a direction orthogonal to the film conveyance direction is provided on the upstream side and the downstream side of the image reading unit 14 in the film conveyance path R. The pair of masks 24A and 24B has a length dimension in a direction orthogonal to the film conveying direction slightly smaller than the groove width dimension L1 of the recess 20 of the base plate 18 (see FIG. 3). It can be moved up and down by a support mechanism (not shown) and can be moved along the film conveyance direction (in the direction of arrow W) and is attached to and held by mask holding members 26A and 26B supported so as to approach and separate from each other.

  Thereby, the masks 24A and 24B approach and separate from the base plate 18 as the mask holding members 26A and 26B move up and down (in the direction of arrow Z in FIG. 3). The masks 24A and 24B are arranged at a predetermined distance from the base plate 18 when the mask holding members 26A and 26B are raised, and when the mask holding members 26A and 26B are lowered to a predetermined position, the image reading reference plane It is configured to stop at a predetermined position substantially coincident with S.

  A rack 30 extending along the film conveying direction is connected to one end of the mask holding members 26A and 26B, and the rack gear 32 of the rack 30 is driven by a mask moving motor 34 comprising a stepping motor. The gear 36 is engaged. As a result, when the mask moving motor 34 rotates the drive gear 36, the rack 30 moves along the film conveyance direction, and the mask holding members 26A and 26B move along the film conveyance direction as the rack 30 moves. While approaching and separating from each other, the mask position by the masks 24A and 24B is changed. The displacement of the masks 24A and 24B can cope with the change of the image frame size in the transport direction of the photographic film F.

  A pair of pressure bonding units 40A and 40B are provided on both sides of the image reading unit 14 in a direction orthogonal to the film transport direction. The pair of pressure bonding units 40A and 40B includes a pressure bonding base 42 extending along the film conveying direction. The pressure bonding base 42 is supported on the base table 12 by a support mechanism (not shown) so as to be movable up and down, and holds a mask. As the members 26A and 26B move up and down, they approach and separate from the base plate 18 (in the direction of arrow Z in FIG. 3).

  As shown in FIG. 2, a driving pulley 44, four idler pulleys 46, and a driven pulley 48 arranged along the film conveying direction are rotatably provided on the inner side surface of the crimping base 42. . An endless belt 50 is wound around the drive pulley 44, idler pulley 46, and driven pulley 48, and each belt 50 extends along the film conveyance direction, and as shown in FIG. The projections 22 </ b> A and 22 </ b> B provided on the upper surface of the base plate 18 are arranged to face each other. Each belt 50 is disposed at a predetermined distance from the convex portions 22A and 22B when the mask holding members 26A and 26B are raised, and when the mask holding members 26A and 26B are lowered to a predetermined position, the above-described masks are provided. After stopping at a predetermined position of 24A, 24B, it crimps | bonds to convex part 22A, 22B.

  As shown in FIG. 2, rotary drive shafts 52A and 52B are connected to the drive pulleys 44 of the crimping units 40A and 40B. The belts 50 of the crimping units 40A and 40B are rotated by the drive pulleys 44 and rotated in a predetermined direction by the rotation drive shafts 52A and 52B being rotated in synchronization by a belt drive motor (not shown). Moving.

  As shown in FIG. 1, a pair of eccentric cams 54 </ b> A and 54 </ b> B are arranged on the outer sides of the crimping units 40 </ b> A and 40 </ b> B in a direction orthogonal to the film transport direction. Both ends of the pair of eccentric cams 54A and 54B are rotatably supported by the pair of bearing portions 56A and 56B. As shown in FIG. 3, the cam portions 58A and 58B are connected to the mask holding member 26A, It abuts against pressing surface portions 60 formed on both sides of the upper surface of 26B.

  Timing pulleys 62A and 62B are attached to the tip ends of the eccentric cams 54A and 54B. A single endless timing belt 64 is wound between the timing pulleys 62A and 62B and a driving pulley 67 of a crimping motor 66 formed of a stepping motor. As a result, when the crimping motor 66 is actuated to rotationally drive the drive pulley 67, the rotational driving force is transmitted to the timing pulleys 62A and 62B via the timing belt 64, and the eccentric cams 54A and 54B rotate in synchronization. Then, the cam surfaces of the cam portions 58A and 58B are moved up and down. The mask holding members 26A and 26B are lowered when the pressing surface portion 60 is pressed by the cam portions 58A and 58B of the eccentric cams 54A and 54B, and approach the base plate 18, and also by the cam portions 58A and 58B. When the pressure is released, the pressure is raised by a spring force of a spring member (not shown) provided in the support mechanism and separated from the base plate 18.

  Next, an image reading operation for reading an image from the image frame P recorded on the photographic film F by the film carrier 10 of the present embodiment configured as described above and its operation will be described.

  In the film carrier 10 of the present embodiment, the masks 24A and 24B are separated from the base plate 18 and release the pressing of the photographic film F. By the relative movement of the mask holding members 26A and 26B driven by the mask moving motor 34, According to the size of the image frame P, they are moved toward and away from each other along the film conveyance direction, and are arranged at predetermined mask positions. The displacement of the masks 24A and 24B can cope with the change of the image frame size in the transport direction without damaging the photographic film F.

  Further, the photographic film F is transported along the film transport path R provided on the upper surface of the base 12 by the rotational movement of the belts 50 of the crimping units 40A and 40B, as shown in FIG. When stopped by the image reading unit 14, the pressure-bonding motor 66 is driven and the mask holding members 26A and 26B are lowered.

  As the mask holding members 26A and 26B are lowered, both edges FA in the transport direction on the film surface are pressed by the pair of masks 24A and 24B moved in a direction approaching the base plate 18 (see FIG. 1). Further, after pressing by the masks 24A and 24B, the belts 50 of the pair of pressure bonding units 40A and 40B moved in the direction approaching the base plate 18 as the mask holding members 26A and 26B descend, As shown in FIG. 4B, the photographic film F is sandwiched between the belts 50 and the convex portions 22A and 22B of the base plate 18, as shown in FIG. It is set in the reading unit 14.

  In this state, the image frame P recorded on the photographic film F is irradiated with light (arrow LT in FIG. 4B) emitted from the light source unit of the scanner device through the base plate 18, and this image frame is irradiated. Light that has passed through P (transmitted light) is imaged on the light receiving surface of the image sensor by the lens unit of the scanner device. Thereby, the film transmitted light is converted into an electrical image signal by the image pickup device and read as an image.

  In the case of a photographic film F having a non-image portion at the end of the film of about 2 mm, such as a brownie film (2B), the opening area of the window portion 16 provided in the image reading portion 14 of the film carrier 10 is increased, and the photographic film F is opened to When transporting up to 16, the leading edge of the film may fall into the window 16 and cause a transport failure.

  Therefore, as in the present embodiment, by disposing the base plate 18 made of a glass plate in the window portion 16, it is possible to prevent the film tip portion from dropping. However, if the four sides around the image frame are pressed when the photographic film F is pressed, air is sealed between the image frame P and the base plate 18. Particularly in a low humidity environment, the curl of the film becomes several mm even after the press bonding, and the entire image frame cannot be focused.

  On the other hand, in the film carrier 10 of the present embodiment, the saddle-shaped curl having a curvature in the film width direction generated in the photographic film F has both edges FB in the film width direction of the belts of the pressure bonding units 40A and 40B. Before being sandwiched between 50 and the convex portions 22A and 22B of the base plate 18, both edge portions FA in the film transport direction are pressed down by the masks 24A and 24B, so that the size is greatly reduced. At this time, the air in the space formed between the photographic film F and the base plate 18 escapes to the outside through the recess 20 provided on the upper surface of the base plate 18. Therefore, even in the case of a photographic film F of a brownie film having a large film width size as in this embodiment, curling can be reliably suppressed and the flatness of the photographic film F can be improved, and the entire surface of the image frame can be focused. Can be matched.

  Moreover, in this embodiment, the photographic film F conveyed to the image reading part 14 along the film conveyance path R is conveyed by each belt 50 provided in the crimping | compression-bonding unit 40A, 40B so that rotation movement was possible along the conveyance direction. Therefore, even a short photographic film cut for each frame or a plurality of frames can be automatically conveyed.

  In the present embodiment, the light LT emitted toward the image frame P of the photographic film F is transmitted through the concave portion 20 of the base plate 18 in the reading of the image, and the entire area of the image frame P has a uniform amount of light without unevenness. Since the light is irradiated, the image reading is not hindered by the concave portion 20. In addition, since the opening area can be easily enlarged by increasing the depth with such a recess 20, for example, a region other than the image frame P in the base plate 18 (both edges in the width direction in the photographic film F) An opening having a larger opening area can be easily formed as compared with a configuration in which a slit-like opening is formed in a portion corresponding to the FB). Thereby, the exhaustability of the air discharged through the recess 20 from between the photographic film F and the base plate 18 can be improved.

In the case of a brownie film, the step (depth) of the recess 20 provided in the base plate 18 may be 0.2 mm or more (dimension d in FIG. 4A), and the width of the image frame relative to the film width of 60 mm. Therefore, if there is an opening area of about 10 mm ^{2 at} the opening on one side and an opening area of about 20 mm ^{2 when} the openings on both sides are combined, the air will escape. Further, the masks 24A and 24B that press the side between the frame images maintain the opening area and remove the air, as described above, the positions (focal points) where the above steps are left without being pushed all the way to the bottom surface of the recess 20. Surface / image reading reference surface S).

  FIG. 5 shows two modified examples of the base plate disposed in the image reading unit 14 of the film carrier 10 described above.

  In the modification shown in FIG. 5A, a pair of base plate mounting portions 70A and 70B protruding inward are provided on both inner wall surfaces of the window portion 16 in the film width direction. The pair of base plate attachment portions 70A and 70B extend along the film conveyance direction, and the above-described image reading reference surface S is constituted by the upper surfaces of the base plate attachment portions 70A and 70B.

  On the other hand, the base plate 72 is formed with a pair of stepped portions 74A and 74B lower than the upper surface 72A at both edges in the film width direction of the upper surface 72A. The pair of stepped portions 74A and 74B is a pair of steps. The base plate attachment portions 70 </ b> A and 70 </ b> B are fitted to the window portion 16 by being fitted together. Further, the upper surface 72A of the base plate 72 attached to the window portion 16 is set lower than the image reading reference surface S, and the base plate is formed by the pair of base plate attachment portions 70A and 70B and the upper surface 72A of the base plate 72. A recess 76 is also formed on the upper surface portion 72. In the case of this modification, the reference plate for setting the photographic film F on the image reading reference surface S is constituted by the base plate 72 and the pair of base plate mounting portions 70A and 70B.

  Therefore, also in the modification shown in FIG. 5A, the photographic film F conveyed to the image reading unit 14 is pressed by the belts 50 of the masks 24A and 24B and the pressure bonding units 40A and 40B to reduce the curl. When this is done, the air in the space formed between the photographic film F and the base plate 72 comes out to the outside through the recess 76 provided in the upper surface portion of the base plate 72, and the flatness of the photographic film F is improved. Can be.

  In addition, in another modified example shown in FIG. 5B, in the configuration of the modified example, the base end portion of the stepped portions 74 </ b> A and 74 </ b> B of the base plate 72 is located at a position that does not cover the image frame of the photographic film F. A narrow slit 78 is formed along the film conveyance direction.

  In the case of this configuration, when the photographic film F conveyed to the image reading unit 14 is pressed to reduce curl, the air in the space formed between the photographic film F and the base plate 72 is the upper surface of the base plate 72. In addition to the concave portion 76 provided in the portion, it comes out to the outside through the slit 78, and the flatness of the photographic film F can also be improved.

  Further, in the case of a base plate in which an opening made of a through hole such as the slit 78 is formed, it is possible to arrange the upper surface on the same plane as the image reading reference surface S without providing a concave portion on the upper surface portion. .

  As mentioned above, although this invention was demonstrated in detail by specific embodiment mentioned above, this invention is not limited to that embodiment, Various other forms can be implemented within the scope of the present invention.

  For example, in the above-described embodiment, the photographic film F is pressed by the masks 24A and 24B and then the belts 50 of the crimping units 40A and 40B are crimped. However, the pressing and crimping units by these masks 24A and 24B are used. The pressure bonding by the belts 40A and 40B may be performed simultaneously.

  The crimping units 40A and 40B do not move up and down. For example, a predetermined gap that is equal to or smaller than the thickness of the photographic film F is provided between each belt 50 and the convex portions 22A and 22B of the base plate 18. The belt 50 may be configured to be transported to the image reading unit 14 by rotating and driving the belts 50 against both edges FB in the width direction of the photographic film.

  In that case, the photographic film F conveyed to the image reading unit 14 is sandwiched between the belts 50 of the pressure bonding units 40A and 40B and the convex portions 22A and 22B of the base plate 18 at both edges FB in the film width direction. In this state, both edge portions FA in the transport direction are pressed by the pair of masks 24A and 24B. Even in such an operation, as the hook-shaped curl generated in the photographic film F is crushed by the masks 24A and 24B, the air in the space formed between the photographic film F and the base plate 18 passes through the recess 20 to the outside. Therefore, curling can be reliably suppressed and the flatness of the photographic film F can be improved.

It is a perspective view which shows the external appearance of the film carrier which concerns on one Embodiment of this invention. It is a perspective view which shows the external appearance of the state which removed the mask, the mask holding member, and its drive mechanism in the film carrier of FIG. It is the perspective view which shows the external appearance which looked at the principal part of the film carrier which concerns on one Embodiment of this invention from the upstream of the film conveyance path. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram for explaining an operation for suppressing curling of a photographic print by a film carrier according to an embodiment of the present invention, in which (A) is a state immediately after a photographic film having a hook-shaped curl is conveyed to an image reading unit; (B) shows a state where curling of the photographic film is suppressed. (A), (B) is a longitudinal cross-sectional view along the film width direction in the image reading part which shows the structure of the base board which concerns on the modification of this invention. It is explanatory drawing explaining the operation | movement which suppresses the curl of the photographic print by the conventional film carrier.

Explanation of symbols

10 Film carrier 14 Image reading unit (image reading position)
18 Base plate (reference plate)
20 Recess (opening / recess)
24A Mask (Pressing member)
24B Mask (Pressing member)
26A Mask holding member (moving means)
26B Mask holding member (moving means)
40A crimping unit (pressing member / conveying means)
40B pressure bonding unit (pressing member / conveying means)
50 belt (conveying means / belt)
54A Eccentric cam (moving means)
54B Eccentric cam (moving means)
62A Timing pulley (moving means)
62B Timing pulley (moving means)
64 Timing belt (moving means)
66 Crimping motor (moving means)
70A, 70B Base plate mounting part (reference plate)
72 Base plate (reference plate)
76 Concavity (opening / concave)
78 Slit (Opening)
F Photo film FA Both edges FB Both edges L Optical axis P Image frame R Film transport path S Image reading reference plane

Claims (4)

A film carrier for conveying a photographic film to an image reading position along a conveyance path in order to irradiate the image frame recorded on the photographic film with light and read the image,
A reference plate provided at the image reading position, for setting the photographic film at a reference position along the light irradiation direction in contact with the back surface of the photographic film conveyed to the image reading position;
Arranged on the upstream side and downstream side of the image reading position in the conveyance direction of the photographic film, and on both sides of the image reading position in the width direction of the photographic film, and provided so as to be able to approach and separate from the reference plate. Four pressing members that press and release both edges in the conveying direction and both edges in the width direction on the surface of the photographic film conveyed to the image reading position;
Moving means for moving the four pressing members toward and away from the reference plate;
An opening for removing air from a space formed between the photographic film and the reference plate when the photographic film is pressed by the four pressing members provided on the reference plate;
A film carrier characterized by comprising: A film carrier for conveying a photographic film to an image reading position along a conveyance path in order to irradiate the image frame recorded on the photographic film with light and read the image,
A reference plate provided at the image reading position, for setting the photographic film at a reference position along the light irradiation direction in contact with the back surface of the photographic film conveyed to the image reading position;
It is disposed upstream and downstream of the image reading position in the conveyance direction of the photographic film and is provided so as to be able to approach and separate from the reference plate, and in the conveyance direction on the surface of the photographic film conveyed to the image reading position. A pair of pressing members that press and release both edges, and
Moving means for moving the pair of pressing members toward and away from the reference plate;
A pair of conveying means disposed on both sides of the image reading position in the width direction of the photographic film, for conveying the photographic film to the image reading position in pressure contact with both edges in the width direction on the surface of the photographic film;
An opening for venting air from a space formed between the photographic film and the reference plate when the photographic film is pressed by the pair of pressing members provided on the reference plate;
A film carrier characterized by comprising:   The film carrier according to claim 2, wherein the transport unit includes an endless belt member that is rotatably movable along the transport direction.   The film carrier according to any one of claims 1 to 3, wherein the opening is a recess provided along the transport direction in a portion corresponding to an image frame of the reference plate.

Images