CA2314928A1 - Device for photoelectric scanning of photographic film - Google Patents
Device for photoelectric scanning of photographic film Download PDFInfo
- Publication number
- CA2314928A1 CA2314928A1 CA 2314928 CA2314928A CA2314928A1 CA 2314928 A1 CA2314928 A1 CA 2314928A1 CA 2314928 CA2314928 CA 2314928 CA 2314928 A CA2314928 A CA 2314928A CA 2314928 A1 CA2314928 A1 CA 2314928A1
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- Canada
- Prior art keywords
- film
- cartridge
- rotor
- transport path
- scanning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
- H04N1/195—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a two-dimensional array or a combination of two-dimensional arrays
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
- G03B27/73—Controlling exposure by variation of spectral composition, e.g. multicolor printers
- G03B27/735—Controlling exposure by variation of spectral composition, e.g. multicolor printers in dependence upon automatic analysis of the original
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
- G03B27/80—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus in dependence upon automatic analysis of the original
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Scanning Arrangements (AREA)
- Projection-Type Copiers In General (AREA)
- Image Input (AREA)
- Facsimiles In General (AREA)
Abstract
A photoelectric film scanning device is provided having a film entrance, a film exit, a film transport path connecting the film entrance and the film exit, transport members for transporting a film to be scanned along the film transport path from the film entrance to the film exit, said film being provided at the film entrance, a scanning platform being arranged in the film transport path for positioning the film during scanning, an exposure device for illuminating the film with a measuring light about the scanning platform, a photo-electric converter for receiving the measuring light being transmitted by the film and for converting the measuring light being transmitted by the film into respective electrical signals in a pixel-by-pixel manner, and an optics for guiding the measuring light being transmitted by the film to the converter.
The scanning platform comprises a rotor, said rotor being provided in a rotatably adjustable manner about an axis being substantially parallel to a longitudinal direction of the film transport path. The circumference of the rotor includes at least two film mask arrangements for different formats of the film, said film mask arrangements being provided at a circumference of the rotor, wherein the film mask arrangements are selectively insertable into the film transport path by means of a rotational adjustment of the rotor.
A film feeding device is arranged in front of the film entrance, said film feeding device for directing a film strip being manually or motorically inserted at a film entrance position to a film entrance, said film feeding device further including an unspooling device for automatically removing a film contained within a film cartridge from said cartridge and for guiding said film to the film entrance. The film to be scanned is guided in front of the rotor between two guide plates having guide grooves, said guide plates being individually motor adjustable transverse to a longitudinal direction of the film, whereby the mutual distance between the guide plates is adjusted such that it corresponds to the width of the different film formats.
The scanning platform comprises a rotor, said rotor being provided in a rotatably adjustable manner about an axis being substantially parallel to a longitudinal direction of the film transport path. The circumference of the rotor includes at least two film mask arrangements for different formats of the film, said film mask arrangements being provided at a circumference of the rotor, wherein the film mask arrangements are selectively insertable into the film transport path by means of a rotational adjustment of the rotor.
A film feeding device is arranged in front of the film entrance, said film feeding device for directing a film strip being manually or motorically inserted at a film entrance position to a film entrance, said film feeding device further including an unspooling device for automatically removing a film contained within a film cartridge from said cartridge and for guiding said film to the film entrance. The film to be scanned is guided in front of the rotor between two guide plates having guide grooves, said guide plates being individually motor adjustable transverse to a longitudinal direction of the film, whereby the mutual distance between the guide plates is adjusted such that it corresponds to the width of the different film formats.
Description
DEVICE FOR PHOTOELECTRIC SCANNING OF PHOTOGRAPHIC FILM
Field of the Invention The invention relates to a device for the photoelectric scanning of photographic film.
Background of the Invention The invention relates to a device for the photoelectric scanning of photographic film a film entrance, a film exit, a film transport path connecting the film entrance and the film exit, transport members for transporting a film to be scanned along the film transport path from the film entrance to the film exit, said film being provided at the film entrance, a scanning platform being arranged in the film transport path for positioning the film during scanning, an exposure device for illuminating the film with a measuring light at the scanning platform, a photo-electric converter for receiving the measuring light being transmitted by the film and for converting the measuring light being transmitted by the film into respective electrical signals in a pixel-like manner, and an optic for guiding the measuring light being transmitted by the film to the converter.
Film scanning devices of this generic type are commonly used for digitizing images and also in connection with classic photographic printers or digitally operating printers. They are used for photo-electrically scanning image positions on the film in a pixel-by-pixel manner and to convert these into corresponding electrical signals which represent the image information contained in individual image positions on the film.
Summary of the Invention It is an object of the invention to provide a universally employable film scanning device which processes.films of different formats but nevertheless, requires only little construction costs and furthermore is compact.
This object is achieved in that the scanning platform includes a rotor which is provided in an adjustable rotatable manner around an axis being substantially parallel to a longitudinal direction of the film transport path, and in that the device includes at least two film mask arrangements for different formats of the film, which film mask arrangements are provided at a circumference of the rotor, wherein the film mask arrangements are selectively insertable into the film transport path by means of a rotational adjustment of the rotor.
The invention also relates to a film feeding device having an unspooling device for automatically removing a film contained within a film cartridge from said film cartridge and for guiding the film to transport members. This film feeding device is intended to allow the automatic removal of a film being contained within a film cartridge from the cartridge in a relatively simple manner and to supply it to a transport member, e.g. a pair of transport rollers, being arranged subsequently. Particularly APS-films can be handled by means of the unspooling device.
The film feeding device in accordance with the invention is particularly suited for use with the film scanning device in accordance with the invention.
Brief Descriution of the DraWInES
The invention will be further described in the following by way of the drawing .
wherein:
Fig. 1 shows a schematic overview of the scanning device in accordance with the invention;
Figs. 2-3 show a detailed view of the device in an oblique projection;
Fig. 4 shows an axial section through the rotor of the device;
Fig. 5 shows the rotor of the device in an oblique projection;
Fig. 6 shows another detailed view in an oblique projection of the transport and guiding member of the scanning device;
Figs. 7-8 show two detailed views of the transport and guiding member of the scanning device; and Figs. 9-12 show different detailed views of the film feeding device of the scanning device each in an oblique projection.
Detailed Description of the Invention As is apparent from the overall presentation of Fig. 1, the scanning device in accordance with the invention includes a feeding device FF for supplying a film to be scanned to a film entrance I, motorically driven filin transport members T1-T3 for transporting the film to be scanned along a film transport path P from the film entrance I
to a film exit E, a film scanning platform denoted SSP as a whole and being arranged in the film transport path P for positioning the film to be scanned during the scanning process, an exposure device L for illuminating the film positioned on the film scanning platform SSP with measuring light, a photo-electric converter CCD for receiving measuring light being transmitted through the film and for converting it into corresponding electrical signals in a pixel-by-pixel manner, optics O for guiding the measuring light being transmitted by the film to the photo-electric converter CCD, and an electronic control C for the described and further elements of the scanning device. In the film transport path P just in front of the film scanning platform SSP, especially between the transport members T1 and T2, there are further provided a known photo-electric read head DX for the DX code contained on the film as well as an also known photo-electric scanning head (frame detector) FD for recording the location of the individual image positions (frames) of the film to be scanned, wherein the read head DX and the scanning head FD also co-operate with the control C.
The exposure device L includes light sources preferably designed as LEDs (Light Emitting Diodes) of the in scanning devices common colors red, blue, and green and if needed also infrared, as well as a corresponding light mixing device from which the measuring light exits homogeneously. The photo-electric converter CCD is preferably designed as a known .two-dimensional field of photo-electric converter elements, particularly CCD elements (charge coupled devices). The transport members Tl-basically include motor driven rollers or roller pairs as well as various guiding members, wherein the drive motor or motors not illustrated in Fig. 1 are controlled by control C.
In this general overview the presented filin scanning device completely corresponds to prior art film scanning devices of this type so that the person of skill in the art does not require any fiu-ther detailed explanations. The particular features of the film scanning device in accordance with the invention are the special design of the film scanning platform SSP and the construction details related thereto as well as the special design of the film feeding device FF and the transport members T,-T3 and various guiding members for the film to be scanned. This is explained in more detail in the following.
In accordance with a first preferred aspect of the invention the film scanning platform SSP includes a hollow rotor R which is pivotally positioned around an axis A
and open on one of its faces RS. The rotational axis A of rotor R is aligned substantially parallel to the longitudinal direction of the film transport path P, wherein conversely the latter in the vicinity of rotor R extends along a mantle line of the rotor R
parallel to the axis. The rotor R is driven by a motor 15 which can be seen in Fig. 3, and is controlled by control C.
In the presented embodiment three film mask arrangements Mt-M3 are arranged along the circumference of rotor R (see also Fig. 5), which are designed for films of different fonmats, in particular APS film, 135 film and 110 film, and are used in a known manner for the positioning on the scanning platform SSP or the rotor R of the film to be scanned. The film mask arrangements MI-M3 are described in more detail further below and at this point it is only mentioned that the wall of the rotor is interrupted in the vicinity of the film mask arrangements and hence is designed to be light transparent.
One of the three film mask arrangements Ml-M3 is selectively introduced into the film transport path P or removed again therefrom through rotational adjustment of rotor R.
A deflection mirror MR being stationary and inclined by 45° to axis A, is arranged inside the hollow rotor R. The measuring light originating from the exposure device L passes through the film positioned on the rotor R by means of the respective film mask arrangement that is present in the film transport path P and radially enters rotor R. The deflection mirror MR redirects the path of the beam LR of the measuring light by 90° so that the measuring light exits substantially in an axial direction through the open face Rs of the rotor R and is guided to the optics (lens) O. The optics O then images in a known manner the area (image position, frame) of the film that is delimited by the filin mask arrangement onto the photo-electric converter CCD. In order for the active area of the photoelectric converter CCD to be used in an optimal manner independently of the film format and its typical image position dimensions (frame size), the photo-electric converter CCD and the optics O are moveably positioned in the direction parallel to axis A. The shift occurs controlled by control C using not illustrated drive motors, which are symbolized by arrows OM and CCDM in Fig. 1.
The design of film scanning platform SSP or its rotor R is apparent from the sectional view of Fig. 4. A carrier 10 is mounted on a base plate G which is basically composed of arm elements that are perpendicular to the base plate and arm elements that are parallel to the base plate, and which are not further denoted. The parallel arm pieces extend through the open face Rs of rotor R into the same. The deflection mirror MR is mounted between the parallel arm elements such that is inclined by 45°
with respect to the base plate G. A support shaft 11 extending parallel to the base plate G is fastened to the free end of the parallel arm pieces. The rotor R is pivotally positioned on the support shaft by means of two ball-bearings 12 and a bearing tube 13 disposed at the rotor R.
The bearing tube 13 and hence the rotor R is driven by a motor 1 S (Fig. 3) by means of a drive belt 14.
The film mask arrangements M,-M3 which are distributed along the circumference of the rotor R each are basically composed of a seating mask 21 and a pressure mask 22, which is arranged at a small distance above the seating mask and resiliently held so that a small slit remains between the seating mask and the pressure mask through which the film to be scanned is guided (Fig. 5). The seating mask 21 is not a separate component but is respectively directly disposed in the circumferential wall of the rotor R. The light transparent windows of the seating mask 21 and the pressure mask 22 are adapted to the size of the image position (frame size) of the film format for which the respective film mask arrangement is designed.
A film guide 23 is provided and assigned to each film mask arrangement M~-M3 on the circumference of the rotor R and is adapted to the width of the respective film format. Each film guide 23 extends parallel to the rotational axis A of the rotor R and lies in the film transport path at a respective rotational position of rotor R, so that it guides the film to be scanned F (Fig. 2) and transferred from the transport members T2 directly into the respective film mask arrangement along the film transport path P.
In assigning the respective film mask arrangement M~ which is designed for APS
film, a known magnetic read head MOF for magnetically recorded information contained on APS film is arranged above the film guide 23. Through rotational adjustment of rotor R, this magnetic read head is swivelled into the film transport path P or moved out again together with the respective film mask arrangement Mi. The magnetic read head MOF
co-operates with the control in a known manner and is preferably provided with a removable or fold-back cover so that it can be easily cleaned and no special film cleansing strips are required.
Fig. 3 shows the rotor R and its drive in an oblique projection. It is apparent from Fig. 2 that the photo-electric converter CCD and the optics O are movably supported.
The converter CCD-is mounted on a printing board 30 which is fastened on carriage 31.
The latter is movably supported on a guide 32 which is arranged on base plate G.
Analogously, the optics O is mounted on a carnage 33 via a not visible carrier, wherein carnage 33 is also movably supported on guide 32. The displacement of both carriages 31 and 33 is carried out by not shown drive motors via control C.
It is apparent from Fig. 6, how the pressure mask 22 of the film mask arrangements M,-M3 presses against the respective seating mask 21 lying below during the scanning of an image position of film F. Two spring fastenings 41 are situated above the pressure mask 22 of the film mask arrangement M3 which is situated in the film transport path, these spring fastenings 41 are mounted in a block 42 and rest on top of the pressure mask 22. The block 42 is tiltably provided in a mounting wall 43 and is driven by means of a lifting magnet 44 which is controlled by control C. A
corresponding ZO control of the lifting magnet 44 can move both spring fastenings up and down, wherein the pressure mask 22.is resiliently pressed against the below lying seating mask or is released again. Film F which is guided through between the seating mask and the pressure mask, is clamped into the film mask arrangement for exposure (scanning) when the pressure mask is pressed down, and hence it is positioned on the rotor R.
After the scanning of a respective image position of film F, the spring fastenings 41 are moved up again and hence the film is released again for fiu-ther transport.
Using drive motor 1 S, the rotor R is driven into its different discrete rotational positions, wherein one of the respective film mask arrangements is in the film transport path. Rotor )~ is engagingly held in these discrete rotational positions. In doing so, there is provided a carrier 10 being provided with a resiliently arranged engaging roll 46 and three engaging notches 47 which are at the inside of the rotor wall in a spatial allocation to the three film mask arrangements. The engaging roll 46 and one of the engaging notches 47 can be seen in Fig. 6, and two further engaging notches 47 can be seen in Fig.
5.
Figures 7 and 8 show the design of the transport members T~-T3 by way of example of transport members T1 and T2 which are situated in front of the rotor R in the transport direction.
In the area in front of the rotor, the film to be scanned F is guided between two guiding plates 51 and 52 (Fig. 7) which are substantially perpendicular to the base plate G, wherein the film to be scanned moves with its side borders in a respective guiding groove 53 or 54 which are provided in the guiding plates. The two guiding plates 51 and 52 are adjustably arranged on a stationary guide SS (Fig. 8) transverse to the longitudinal direction of film F, so that the distance between them can be adjusted to the width of the respective film to be scanned. In order to drive the two guiding plates, two spindle motors 58 and 59 controlled by control C are provided on a mounting wall 56 and 57, respectively, wherein the spindle motors are coupled with a respective one of the two guiding plates 51 and 52 via their spindles 60 and 61. Two photo-electric DX-Code-read heads DX are fastened to the two guiding plates 51 and 52 and are slightly resiliently preloaded towards each other by means of leaf spring 62, so that they are resiliently close-fitted on the side borders of the film to be scanned F. Because of the presence of two opposite read heads, it is not relevant, how the film F is inserted into the scanning device. Aside from the DX code, the read heads DX can also record the perforation of 110 film and APS film.
The lateral guidance of the film to be scanned between the individually adjustable guiding plates has the advantage that the guiding plates can be asymmetrically adjusted, which allows for a better usage of the photo-electric converter CCD in 110 films, for example, and hence, a better resolution of the scan.
The transport members Tt and T2 (and also the herein invisible transport members T3) each include two resilient adjoining rollers 71 and 72, which are rotatably provided at their ends in bearing blocks 73 and 74 and are held together in the vicinity of one end by means of fastening 75. The bearing blocks73 and 74 are fastened to the two mounting walls 56 and 57 and contain each an adjustable spring for pressing the two rollers against each other. The two rollers 71 and 72 are guided through not denoted openings in the two guiding plates 51 and 52 and lie above or below the film transport plane defined by the middle plane of the guiding grooves 53 and 54. The respective lower transport roller 72 in the drawing is removably rotary coupled with a belt pulley 76 which is driven via a belt 77 through drive motor 78 being arranged on the mounting wall 56. The bearing blocks 74 are removably fastened to the mounting wall 57. The two rollers 71 and 72 are only plugged in to the bearing bl4cks 73 and can be laterally (to the right in Fig. 7) pulled out as a whole in an axial direction together with the bearing blocks 74 after their removal, wherein the fastenings 75 prevent a falling apart of the respective rollers that belong together. In this manner, the rollers 71 and 72 can be easily exchanged and cleaned.
The already mentioned film feeding device FF is arranged in front of the film entrance I (Fig. 1) for feeding in the film to be scanned F. This film feeding device FF is arranged such that it can guide the film via three different paths to the film entrance I.
This film feeding device FF is arranged such that it can guide the film via three different paths to the film entrance I. A first path 101, for example, is used in conjunction with re-orders for the manual supply of film strips at a film entrance position 104. A
second path 102 is provided at a film entrance position 105 for the automatic acceptance of a filin coming from a film developing device, for example. Finally, a third path 103 is used for supplying APS filin which is automatically removed from a film cartridge FC
using a film unspooling device FCP.
The film feeding device FF is illustrated fiuther in Figures 9-12. Aside from the already mentioned unspooling device FCP, it includes two guiding members in form of the two guiding plates 51 and 52 which were already shown in Figures 7 and 8 and which can be adjusted such that they move towards each other or away from each other using spindle motors 58 and 59, so that their distance is adjusted according to the width of the film to be fed in.
The two guiding plates 51 and 52 each have on their inside a guiding groove or 121 being substantially straight to the base plate and a curved guiding groove 112 or 122 (indicated by a dashed line), which merge or lead into the respective guiding grooves 53 and 54 depicted in Fig. 7. The two straight guiding grooves 111 and 121 form a substantially straight guiding path for the manual feeding of film along the first path 101, the two curved guiding grooves 112 and 122 form a curved guiding path-for the automatic or motorically driven feeding of a film from a film developing device along the second path 102. The straight and the curved guiding paths guide the film guided therein through its side borders immediately to the film entrance I, where the film is taken over by the transport members T, and transported further.
In the following, the unsp~oling device FCP contained within the film feeding device FF is explained further with respect to Figures 9-12. This unspooling device can be used not only in the present scanning device but also in other film processing devices and that is why independent protection is also sought for the unspooling device.
The unspooling device FCP includes a cartridge lift 130 linearly shiftable in a stationary lift guide 131 (Fig. 11) as a central element. The cartridge lift extends outwards from an upper housing cover 100 of the scanning device in one loading position and can be manually moved along the lift guide to an unloading position under the housing cover into the housing of the scanning device, where it can be temporarily locked (Fig. 10). After release of the locking, the cartridge lift automatically moves back into its loading position, e.g. by spring force. The cartridge lift 130 includes a cartridge chamber 132 open to both sides, which is adapted to the form of an APS film cartridge in its cross section. The cartridge chamber 132 is slightly above the housing cover 100 in a loading position of cartridge lift 130, so that a film cartridge FC can be inserted into the cartridge chamber from the side. As a result of the downwards movement of the cartridge lift 130, the film cartridge FC contained within the cartridge chamber 132 is transported to an unloading position under the housing cover 100, where it is located between the two guiding plates 51 and 52.
Figures 11 and 12 show the film feeding device with the cartridge lift 130 and a film cartridge FC contained therein, in a loading position and an unloading position, respectively, whereby the housing cover of the film feeding device is removed.
Cartridge chamber 132 has a not illustrated spring arranged, which is intended to force the film cartridge FC out of the cartridge chamber 132. Thus, the insertion of the cartridge into the chamber occurs against the force of this spring. During the downwards movement of the cartridge lift 130, the film cartridge FC being resiliently installed slides along a stop wall 134. As soon as the cartridge lift 130 or the film cartridge FC reaches the unloading position (Fig. 12), the film cartridge FC disengages from the stop wall 134 and slides axially onto a driving spike 135 being arranged at this point, so that the latter engages with the winding core contained within the film cartridge FC. At the same time, a bearing spike 136 fastened to the guiding plate 51 engages with the cartridge chamber 132 from the opposite side and thus, forms a counter bearing for the winding core of the film cartridge FC. Furthermore, the bearing spike 136 locks the cartridge lift 130 in its unloading position.
The driving spike 135 is driven by a drive motor 138 via a belt 137, the drive motor being controlled by control C and stationary on mounting wall 57. As soon as the driving spike 135 is rotatably coupled with the winding core in the film cartridge FC, it starts to rotate, whereby the APS film contained within the film cartridge FC
is pushed out of the cartridge and immediately advanced to the film entrance I, where it is taken over by the transport members Tl and transported filrther. Once the image-containing portion of the APS film is completely removed from the cartridge and all of the image positions contained on the filin are scanned, the film is retracted again into the film cartridge and rolled up on the spool again. Subsequently, the guiding plate 51 is moved to the left (in the drawing) until the bearing spike is not engaged with the cartridge chamber 132 anymore. This releases the locking of the cartridge lift 130 again.
Simultaneously, also the guiding plate 52 is moved slightly to the left in order to insert the film cartridge FC.somewhat axially into the cartridge chamber, so that the film cartridge FC comes to rest again behind the stop wall 134 and the cartridge lift 130 together with the film cartridge FC containing the film to be scanned moves uninterruptedly upwards into its loading position. Once it arrives there, the film cartridge FC is ejected from the cartridge chamber 132 as a result of the spring force.
The supply of the film cartridges FC from above by means of cartridge lift 130 is particularly space-saving. As a result of the arrangement of the bearing spike 136 on the movable guiding plate 51, a separate drive for the bearing spike can be omitted.
Film F being motorically supplied from a developing device via path 102, leaves the scanning device at film exit E after it has been scanned. Film F manually supplied via path 101 can also leave the scanning device from film exit E. Preferably, however, such film is ejected again after scanning via path 101 by means of the transport members T,-T3 mainly in connection with re-orders of manually fed film. If necessary, a switching system can also be provided for guiding the scanned film to a storage drawer or the like, for example.
Field of the Invention The invention relates to a device for the photoelectric scanning of photographic film.
Background of the Invention The invention relates to a device for the photoelectric scanning of photographic film a film entrance, a film exit, a film transport path connecting the film entrance and the film exit, transport members for transporting a film to be scanned along the film transport path from the film entrance to the film exit, said film being provided at the film entrance, a scanning platform being arranged in the film transport path for positioning the film during scanning, an exposure device for illuminating the film with a measuring light at the scanning platform, a photo-electric converter for receiving the measuring light being transmitted by the film and for converting the measuring light being transmitted by the film into respective electrical signals in a pixel-like manner, and an optic for guiding the measuring light being transmitted by the film to the converter.
Film scanning devices of this generic type are commonly used for digitizing images and also in connection with classic photographic printers or digitally operating printers. They are used for photo-electrically scanning image positions on the film in a pixel-by-pixel manner and to convert these into corresponding electrical signals which represent the image information contained in individual image positions on the film.
Summary of the Invention It is an object of the invention to provide a universally employable film scanning device which processes.films of different formats but nevertheless, requires only little construction costs and furthermore is compact.
This object is achieved in that the scanning platform includes a rotor which is provided in an adjustable rotatable manner around an axis being substantially parallel to a longitudinal direction of the film transport path, and in that the device includes at least two film mask arrangements for different formats of the film, which film mask arrangements are provided at a circumference of the rotor, wherein the film mask arrangements are selectively insertable into the film transport path by means of a rotational adjustment of the rotor.
The invention also relates to a film feeding device having an unspooling device for automatically removing a film contained within a film cartridge from said film cartridge and for guiding the film to transport members. This film feeding device is intended to allow the automatic removal of a film being contained within a film cartridge from the cartridge in a relatively simple manner and to supply it to a transport member, e.g. a pair of transport rollers, being arranged subsequently. Particularly APS-films can be handled by means of the unspooling device.
The film feeding device in accordance with the invention is particularly suited for use with the film scanning device in accordance with the invention.
Brief Descriution of the DraWInES
The invention will be further described in the following by way of the drawing .
wherein:
Fig. 1 shows a schematic overview of the scanning device in accordance with the invention;
Figs. 2-3 show a detailed view of the device in an oblique projection;
Fig. 4 shows an axial section through the rotor of the device;
Fig. 5 shows the rotor of the device in an oblique projection;
Fig. 6 shows another detailed view in an oblique projection of the transport and guiding member of the scanning device;
Figs. 7-8 show two detailed views of the transport and guiding member of the scanning device; and Figs. 9-12 show different detailed views of the film feeding device of the scanning device each in an oblique projection.
Detailed Description of the Invention As is apparent from the overall presentation of Fig. 1, the scanning device in accordance with the invention includes a feeding device FF for supplying a film to be scanned to a film entrance I, motorically driven filin transport members T1-T3 for transporting the film to be scanned along a film transport path P from the film entrance I
to a film exit E, a film scanning platform denoted SSP as a whole and being arranged in the film transport path P for positioning the film to be scanned during the scanning process, an exposure device L for illuminating the film positioned on the film scanning platform SSP with measuring light, a photo-electric converter CCD for receiving measuring light being transmitted through the film and for converting it into corresponding electrical signals in a pixel-by-pixel manner, optics O for guiding the measuring light being transmitted by the film to the photo-electric converter CCD, and an electronic control C for the described and further elements of the scanning device. In the film transport path P just in front of the film scanning platform SSP, especially between the transport members T1 and T2, there are further provided a known photo-electric read head DX for the DX code contained on the film as well as an also known photo-electric scanning head (frame detector) FD for recording the location of the individual image positions (frames) of the film to be scanned, wherein the read head DX and the scanning head FD also co-operate with the control C.
The exposure device L includes light sources preferably designed as LEDs (Light Emitting Diodes) of the in scanning devices common colors red, blue, and green and if needed also infrared, as well as a corresponding light mixing device from which the measuring light exits homogeneously. The photo-electric converter CCD is preferably designed as a known .two-dimensional field of photo-electric converter elements, particularly CCD elements (charge coupled devices). The transport members Tl-basically include motor driven rollers or roller pairs as well as various guiding members, wherein the drive motor or motors not illustrated in Fig. 1 are controlled by control C.
In this general overview the presented filin scanning device completely corresponds to prior art film scanning devices of this type so that the person of skill in the art does not require any fiu-ther detailed explanations. The particular features of the film scanning device in accordance with the invention are the special design of the film scanning platform SSP and the construction details related thereto as well as the special design of the film feeding device FF and the transport members T,-T3 and various guiding members for the film to be scanned. This is explained in more detail in the following.
In accordance with a first preferred aspect of the invention the film scanning platform SSP includes a hollow rotor R which is pivotally positioned around an axis A
and open on one of its faces RS. The rotational axis A of rotor R is aligned substantially parallel to the longitudinal direction of the film transport path P, wherein conversely the latter in the vicinity of rotor R extends along a mantle line of the rotor R
parallel to the axis. The rotor R is driven by a motor 15 which can be seen in Fig. 3, and is controlled by control C.
In the presented embodiment three film mask arrangements Mt-M3 are arranged along the circumference of rotor R (see also Fig. 5), which are designed for films of different fonmats, in particular APS film, 135 film and 110 film, and are used in a known manner for the positioning on the scanning platform SSP or the rotor R of the film to be scanned. The film mask arrangements MI-M3 are described in more detail further below and at this point it is only mentioned that the wall of the rotor is interrupted in the vicinity of the film mask arrangements and hence is designed to be light transparent.
One of the three film mask arrangements Ml-M3 is selectively introduced into the film transport path P or removed again therefrom through rotational adjustment of rotor R.
A deflection mirror MR being stationary and inclined by 45° to axis A, is arranged inside the hollow rotor R. The measuring light originating from the exposure device L passes through the film positioned on the rotor R by means of the respective film mask arrangement that is present in the film transport path P and radially enters rotor R. The deflection mirror MR redirects the path of the beam LR of the measuring light by 90° so that the measuring light exits substantially in an axial direction through the open face Rs of the rotor R and is guided to the optics (lens) O. The optics O then images in a known manner the area (image position, frame) of the film that is delimited by the filin mask arrangement onto the photo-electric converter CCD. In order for the active area of the photoelectric converter CCD to be used in an optimal manner independently of the film format and its typical image position dimensions (frame size), the photo-electric converter CCD and the optics O are moveably positioned in the direction parallel to axis A. The shift occurs controlled by control C using not illustrated drive motors, which are symbolized by arrows OM and CCDM in Fig. 1.
The design of film scanning platform SSP or its rotor R is apparent from the sectional view of Fig. 4. A carrier 10 is mounted on a base plate G which is basically composed of arm elements that are perpendicular to the base plate and arm elements that are parallel to the base plate, and which are not further denoted. The parallel arm pieces extend through the open face Rs of rotor R into the same. The deflection mirror MR is mounted between the parallel arm elements such that is inclined by 45°
with respect to the base plate G. A support shaft 11 extending parallel to the base plate G is fastened to the free end of the parallel arm pieces. The rotor R is pivotally positioned on the support shaft by means of two ball-bearings 12 and a bearing tube 13 disposed at the rotor R.
The bearing tube 13 and hence the rotor R is driven by a motor 1 S (Fig. 3) by means of a drive belt 14.
The film mask arrangements M,-M3 which are distributed along the circumference of the rotor R each are basically composed of a seating mask 21 and a pressure mask 22, which is arranged at a small distance above the seating mask and resiliently held so that a small slit remains between the seating mask and the pressure mask through which the film to be scanned is guided (Fig. 5). The seating mask 21 is not a separate component but is respectively directly disposed in the circumferential wall of the rotor R. The light transparent windows of the seating mask 21 and the pressure mask 22 are adapted to the size of the image position (frame size) of the film format for which the respective film mask arrangement is designed.
A film guide 23 is provided and assigned to each film mask arrangement M~-M3 on the circumference of the rotor R and is adapted to the width of the respective film format. Each film guide 23 extends parallel to the rotational axis A of the rotor R and lies in the film transport path at a respective rotational position of rotor R, so that it guides the film to be scanned F (Fig. 2) and transferred from the transport members T2 directly into the respective film mask arrangement along the film transport path P.
In assigning the respective film mask arrangement M~ which is designed for APS
film, a known magnetic read head MOF for magnetically recorded information contained on APS film is arranged above the film guide 23. Through rotational adjustment of rotor R, this magnetic read head is swivelled into the film transport path P or moved out again together with the respective film mask arrangement Mi. The magnetic read head MOF
co-operates with the control in a known manner and is preferably provided with a removable or fold-back cover so that it can be easily cleaned and no special film cleansing strips are required.
Fig. 3 shows the rotor R and its drive in an oblique projection. It is apparent from Fig. 2 that the photo-electric converter CCD and the optics O are movably supported.
The converter CCD-is mounted on a printing board 30 which is fastened on carriage 31.
The latter is movably supported on a guide 32 which is arranged on base plate G.
Analogously, the optics O is mounted on a carnage 33 via a not visible carrier, wherein carnage 33 is also movably supported on guide 32. The displacement of both carriages 31 and 33 is carried out by not shown drive motors via control C.
It is apparent from Fig. 6, how the pressure mask 22 of the film mask arrangements M,-M3 presses against the respective seating mask 21 lying below during the scanning of an image position of film F. Two spring fastenings 41 are situated above the pressure mask 22 of the film mask arrangement M3 which is situated in the film transport path, these spring fastenings 41 are mounted in a block 42 and rest on top of the pressure mask 22. The block 42 is tiltably provided in a mounting wall 43 and is driven by means of a lifting magnet 44 which is controlled by control C. A
corresponding ZO control of the lifting magnet 44 can move both spring fastenings up and down, wherein the pressure mask 22.is resiliently pressed against the below lying seating mask or is released again. Film F which is guided through between the seating mask and the pressure mask, is clamped into the film mask arrangement for exposure (scanning) when the pressure mask is pressed down, and hence it is positioned on the rotor R.
After the scanning of a respective image position of film F, the spring fastenings 41 are moved up again and hence the film is released again for fiu-ther transport.
Using drive motor 1 S, the rotor R is driven into its different discrete rotational positions, wherein one of the respective film mask arrangements is in the film transport path. Rotor )~ is engagingly held in these discrete rotational positions. In doing so, there is provided a carrier 10 being provided with a resiliently arranged engaging roll 46 and three engaging notches 47 which are at the inside of the rotor wall in a spatial allocation to the three film mask arrangements. The engaging roll 46 and one of the engaging notches 47 can be seen in Fig. 6, and two further engaging notches 47 can be seen in Fig.
5.
Figures 7 and 8 show the design of the transport members T~-T3 by way of example of transport members T1 and T2 which are situated in front of the rotor R in the transport direction.
In the area in front of the rotor, the film to be scanned F is guided between two guiding plates 51 and 52 (Fig. 7) which are substantially perpendicular to the base plate G, wherein the film to be scanned moves with its side borders in a respective guiding groove 53 or 54 which are provided in the guiding plates. The two guiding plates 51 and 52 are adjustably arranged on a stationary guide SS (Fig. 8) transverse to the longitudinal direction of film F, so that the distance between them can be adjusted to the width of the respective film to be scanned. In order to drive the two guiding plates, two spindle motors 58 and 59 controlled by control C are provided on a mounting wall 56 and 57, respectively, wherein the spindle motors are coupled with a respective one of the two guiding plates 51 and 52 via their spindles 60 and 61. Two photo-electric DX-Code-read heads DX are fastened to the two guiding plates 51 and 52 and are slightly resiliently preloaded towards each other by means of leaf spring 62, so that they are resiliently close-fitted on the side borders of the film to be scanned F. Because of the presence of two opposite read heads, it is not relevant, how the film F is inserted into the scanning device. Aside from the DX code, the read heads DX can also record the perforation of 110 film and APS film.
The lateral guidance of the film to be scanned between the individually adjustable guiding plates has the advantage that the guiding plates can be asymmetrically adjusted, which allows for a better usage of the photo-electric converter CCD in 110 films, for example, and hence, a better resolution of the scan.
The transport members Tt and T2 (and also the herein invisible transport members T3) each include two resilient adjoining rollers 71 and 72, which are rotatably provided at their ends in bearing blocks 73 and 74 and are held together in the vicinity of one end by means of fastening 75. The bearing blocks73 and 74 are fastened to the two mounting walls 56 and 57 and contain each an adjustable spring for pressing the two rollers against each other. The two rollers 71 and 72 are guided through not denoted openings in the two guiding plates 51 and 52 and lie above or below the film transport plane defined by the middle plane of the guiding grooves 53 and 54. The respective lower transport roller 72 in the drawing is removably rotary coupled with a belt pulley 76 which is driven via a belt 77 through drive motor 78 being arranged on the mounting wall 56. The bearing blocks 74 are removably fastened to the mounting wall 57. The two rollers 71 and 72 are only plugged in to the bearing bl4cks 73 and can be laterally (to the right in Fig. 7) pulled out as a whole in an axial direction together with the bearing blocks 74 after their removal, wherein the fastenings 75 prevent a falling apart of the respective rollers that belong together. In this manner, the rollers 71 and 72 can be easily exchanged and cleaned.
The already mentioned film feeding device FF is arranged in front of the film entrance I (Fig. 1) for feeding in the film to be scanned F. This film feeding device FF is arranged such that it can guide the film via three different paths to the film entrance I.
This film feeding device FF is arranged such that it can guide the film via three different paths to the film entrance I. A first path 101, for example, is used in conjunction with re-orders for the manual supply of film strips at a film entrance position 104. A
second path 102 is provided at a film entrance position 105 for the automatic acceptance of a filin coming from a film developing device, for example. Finally, a third path 103 is used for supplying APS filin which is automatically removed from a film cartridge FC
using a film unspooling device FCP.
The film feeding device FF is illustrated fiuther in Figures 9-12. Aside from the already mentioned unspooling device FCP, it includes two guiding members in form of the two guiding plates 51 and 52 which were already shown in Figures 7 and 8 and which can be adjusted such that they move towards each other or away from each other using spindle motors 58 and 59, so that their distance is adjusted according to the width of the film to be fed in.
The two guiding plates 51 and 52 each have on their inside a guiding groove or 121 being substantially straight to the base plate and a curved guiding groove 112 or 122 (indicated by a dashed line), which merge or lead into the respective guiding grooves 53 and 54 depicted in Fig. 7. The two straight guiding grooves 111 and 121 form a substantially straight guiding path for the manual feeding of film along the first path 101, the two curved guiding grooves 112 and 122 form a curved guiding path-for the automatic or motorically driven feeding of a film from a film developing device along the second path 102. The straight and the curved guiding paths guide the film guided therein through its side borders immediately to the film entrance I, where the film is taken over by the transport members T, and transported further.
In the following, the unsp~oling device FCP contained within the film feeding device FF is explained further with respect to Figures 9-12. This unspooling device can be used not only in the present scanning device but also in other film processing devices and that is why independent protection is also sought for the unspooling device.
The unspooling device FCP includes a cartridge lift 130 linearly shiftable in a stationary lift guide 131 (Fig. 11) as a central element. The cartridge lift extends outwards from an upper housing cover 100 of the scanning device in one loading position and can be manually moved along the lift guide to an unloading position under the housing cover into the housing of the scanning device, where it can be temporarily locked (Fig. 10). After release of the locking, the cartridge lift automatically moves back into its loading position, e.g. by spring force. The cartridge lift 130 includes a cartridge chamber 132 open to both sides, which is adapted to the form of an APS film cartridge in its cross section. The cartridge chamber 132 is slightly above the housing cover 100 in a loading position of cartridge lift 130, so that a film cartridge FC can be inserted into the cartridge chamber from the side. As a result of the downwards movement of the cartridge lift 130, the film cartridge FC contained within the cartridge chamber 132 is transported to an unloading position under the housing cover 100, where it is located between the two guiding plates 51 and 52.
Figures 11 and 12 show the film feeding device with the cartridge lift 130 and a film cartridge FC contained therein, in a loading position and an unloading position, respectively, whereby the housing cover of the film feeding device is removed.
Cartridge chamber 132 has a not illustrated spring arranged, which is intended to force the film cartridge FC out of the cartridge chamber 132. Thus, the insertion of the cartridge into the chamber occurs against the force of this spring. During the downwards movement of the cartridge lift 130, the film cartridge FC being resiliently installed slides along a stop wall 134. As soon as the cartridge lift 130 or the film cartridge FC reaches the unloading position (Fig. 12), the film cartridge FC disengages from the stop wall 134 and slides axially onto a driving spike 135 being arranged at this point, so that the latter engages with the winding core contained within the film cartridge FC. At the same time, a bearing spike 136 fastened to the guiding plate 51 engages with the cartridge chamber 132 from the opposite side and thus, forms a counter bearing for the winding core of the film cartridge FC. Furthermore, the bearing spike 136 locks the cartridge lift 130 in its unloading position.
The driving spike 135 is driven by a drive motor 138 via a belt 137, the drive motor being controlled by control C and stationary on mounting wall 57. As soon as the driving spike 135 is rotatably coupled with the winding core in the film cartridge FC, it starts to rotate, whereby the APS film contained within the film cartridge FC
is pushed out of the cartridge and immediately advanced to the film entrance I, where it is taken over by the transport members Tl and transported filrther. Once the image-containing portion of the APS film is completely removed from the cartridge and all of the image positions contained on the filin are scanned, the film is retracted again into the film cartridge and rolled up on the spool again. Subsequently, the guiding plate 51 is moved to the left (in the drawing) until the bearing spike is not engaged with the cartridge chamber 132 anymore. This releases the locking of the cartridge lift 130 again.
Simultaneously, also the guiding plate 52 is moved slightly to the left in order to insert the film cartridge FC.somewhat axially into the cartridge chamber, so that the film cartridge FC comes to rest again behind the stop wall 134 and the cartridge lift 130 together with the film cartridge FC containing the film to be scanned moves uninterruptedly upwards into its loading position. Once it arrives there, the film cartridge FC is ejected from the cartridge chamber 132 as a result of the spring force.
The supply of the film cartridges FC from above by means of cartridge lift 130 is particularly space-saving. As a result of the arrangement of the bearing spike 136 on the movable guiding plate 51, a separate drive for the bearing spike can be omitted.
Film F being motorically supplied from a developing device via path 102, leaves the scanning device at film exit E after it has been scanned. Film F manually supplied via path 101 can also leave the scanning device from film exit E. Preferably, however, such film is ejected again after scanning via path 101 by means of the transport members T,-T3 mainly in connection with re-orders of manually fed film. If necessary, a switching system can also be provided for guiding the scanned film to a storage drawer or the like, for example.
Claims (17)
1. A device for a photoelectric scanning of photographic film comprising:
a film transport path;
transport members for transporting a film to be scanned along the film transport path;
a scanning platform being arranged in the film transport path for positioning the film during scanning, said scanning platform comprising a rotor, said rotor being provided in an adjustable rotating manner around an axis being substantially parallel to a longitudinal direction of the film transport path;
at least two film mask arrangements for different formats of the film, said film mask arrangements being provided at a circumference of the rotor, wherein the film mask arrangements are selectively insertable into the film transport path by means of a rotational adjustment of the rotor;
an exposure device for illuminating the film with a measuring light at the scanning platform;
a photo-electric converter for receiving the measuring light being transmitted by the film and for converting the measuring light being transmitted by the film into respective electrical signals in a pixel-like manner; and an optic for guiding the measuring light being transmitted by the film to the converter.
a film transport path;
transport members for transporting a film to be scanned along the film transport path;
a scanning platform being arranged in the film transport path for positioning the film during scanning, said scanning platform comprising a rotor, said rotor being provided in an adjustable rotating manner around an axis being substantially parallel to a longitudinal direction of the film transport path;
at least two film mask arrangements for different formats of the film, said film mask arrangements being provided at a circumference of the rotor, wherein the film mask arrangements are selectively insertable into the film transport path by means of a rotational adjustment of the rotor;
an exposure device for illuminating the film with a measuring light at the scanning platform;
a photo-electric converter for receiving the measuring light being transmitted by the film and for converting the measuring light being transmitted by the film into respective electrical signals in a pixel-like manner; and an optic for guiding the measuring light being transmitted by the film to the converter.
2. A device as defined in claim 1, wherein the rotor is a hollow rotor and comprises an open end face, and wherein a stationary deflection mirror is arranged inside the hollow rotor, said stationary deflection mirror for deflecting the incoming path of the beam of the measuring light such that the measuring light exits through the open face in a substantially axial direction, said incoming path of the beam entering the rotor in a substantially radial manner by means of the respective film mask arrangement being disposed in the film transport path.
3. A device as defined in claim 1, wherein at least one of the at least two film mask arrangements is adapted for an APS film format, and wherein a circumference of the rotor is provided with a magnetic read head for reading information being magnetically recorded on APS films, said magnetic read head being insertable into the film transport path and removable therefrom, together with the film mask designed for the APS film format.
4. A device as defined in claim 3, wherein the magnetic read head includes a removable or foldable cover.
5. A device as defined in claim 1, wherein the circumference of the rotor includes film guides being parallel to a rotational axis of the rotor with respect to each film mask arrangement, said film guides being selectively insertable into the film transport path.
6. A device as defined in claim 1, wherein the photo-electric converter and the optics are motorically adjustable depending on the respective film mask arrangement present in the film transport path.
7. A device as defined in claim 1, wherein at least one photo-electric read head for film containing DX code is provided in the film transport path in front of the rotor.
8. A device as defined in claim 7, wherein at least one read head is arranged such that a perforation of film to be scanned is recorded by said read head.
9. A device as defined in claim 1, wherein a photo-electric scanning head is arranged in the film transport path in front of the rotor such that image positions contained on the film are recorded by the photo-electric scanning head.
10. A device as defined in claim 1, wherein a film feeding device is arranged in front of a film entrance, said film feeding device for directing a film strip being manually or motorically inserted at a film entrance position to a film entrance, said film feeding device further including an unspooling device for automatically removing an APS film contained within a film cartridge from said cartridge and for guiding said film to the film entrance.
11. A device as defined in claim 10, wherein the unspooling device includes a cartridge lift for receiving a film cartridge and for transporting the film cartridge up and down between an upper loading position and a lower unloading position, wherein the film cartridge is located outside a housing cover of the scanning device in the loading position of the cartridge lift and wherein the film cartridge is located inside the housing cover of the scanning device in the unloading position of the cartridge lift.
12. A device as defined in claim 11, further including a motor driven driving spike for rotational engagement with a winding core of the film cartridge when the film cartridge is in the unloading position, whereby a rotation of the driving spike facilitates one of an ejection of the film from the film cartridge and a retraction of the film into the film cartridge.
13. A device as defined in claim 1, wherein the film to be scanned is guided in front of the rotor between two guide plates having guide grooves, said guide plates being individually motorically adjustable transverse to a longitudinal direction of the film, whereby the mutual distance between the guide plates is adjusted such that it corresponds to the width of the different film formats.
14. A film feeding device having an unspooling device for automatically removing a film contained within a film cartridge from said film cartridge and for guiding the film to transport members for transporting the film along a film transport path in a photo-electric scanning device, wherein the unspooling device includes a cartridge lift for receiving a film cartridge and for transporting the film cartridge up and down between an upper loading position and a lower unloading position, wherein the film cartridge is located outside a housing cover of the scanning device in the loading position of the cartridge lift and wherein the film cartridge is located inside the housing cover of the scanning device in the unloading position of the cartridge lift.
15. A film feeding device as defined in claim 14 further including a motor driven driving spike for rotational engagement with a winding core of the film cartridge when the film cartridge is in the unloading position, whereby a rotation of the driving spike facilitates one of an ejection of the film from the film cartridge and a retraction of the film into the film cartridge.
16. A film feeding device as defined in claim 14, wherein the film removed from the cartridge is guided between two guide plates having guide grooves, said guide plates being individually motorically adjustable transverse to a longitudinal direction of the film, whereby the mutual distance between the guide plates is adjusted such that it corresponds to the width of the different film formats.
17. A film feeding device as defined in claim 14, wherein at least one guide groove is provided for guiding a strip of film from a film entrance position to the transport members.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99116723.0 | 1999-08-26 | ||
| EP19990116723 EP1093014B1 (en) | 1999-08-26 | 1999-08-26 | Device for photoelectrically scanning photographic films |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2314928A1 true CA2314928A1 (en) | 2001-02-26 |
Family
ID=8238857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2314928 Abandoned CA2314928A1 (en) | 1999-08-26 | 2000-08-03 | Device for photoelectric scanning of photographic film |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1093014B1 (en) |
| JP (1) | JP2001083620A (en) |
| CN (1) | CN1286409A (en) |
| CA (1) | CA2314928A1 (en) |
| DE (1) | DE59900081D1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801892B (en) * | 2011-05-26 | 2016-06-22 | 中国人民解放军海军装备研究院信息工程技术研究所 | Aviation image, imaging region recognition positioning method and device |
| CN108282594B (en) * | 2018-01-30 | 2023-04-04 | 西安电子科技大学 | Automatic film winding control system in aerial film scanner |
| CN109276267A (en) * | 2018-11-06 | 2019-01-29 | 青岛山大齐鲁医院（山东大学齐鲁医院（青岛）） | Radiology department is with quick film shooting play piece device |
| CN117278682B (en) * | 2023-09-18 | 2024-05-10 | 广州力加贺电子科技有限公司 | Negative film scanning method, scanner device, computer equipment and medium |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3823074C2 (en) * | 1988-07-07 | 1996-10-02 | Agfa Gevaert Ag | Projection copying device (printer) with a device for acquiring image information |
| JPH04242385A (en) * | 1991-01-16 | 1992-08-31 | Sony Corp | Photo video camera device |
| US5270839A (en) * | 1991-09-16 | 1993-12-14 | Eastman Kodak Company | Dual imaging station photoprint scanner |
| US5663762A (en) * | 1994-10-24 | 1997-09-02 | Fuji Photo Film Co., Ltd. | Electronic viewer automatically adjusting magnification of a film image in accordance with position of the film image |
-
1999
- 1999-08-26 DE DE59900081T patent/DE59900081D1/en not_active Expired - Fee Related
- 1999-08-26 EP EP19990116723 patent/EP1093014B1/en not_active Expired - Lifetime
-
2000
- 2000-08-03 CA CA 2314928 patent/CA2314928A1/en not_active Abandoned
- 2000-08-16 JP JP2000246622A patent/JP2001083620A/en active Pending
- 2000-08-25 CN CN 00124073 patent/CN1286409A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP1093014B1 (en) | 2001-05-02 |
| JP2001083620A (en) | 2001-03-30 |
| EP1093014A1 (en) | 2001-04-18 |
| DE59900081D1 (en) | 2001-06-28 |
| CN1286409A (en) | 2001-03-07 |
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