CN1725800A - Apparatus for reading images from photographic film - Google Patents

Abstract

The present invention discloses a film image readout device, which is provided with a lighting optical system (31) that comprises a light source, a camera optical system (32), a image readout sensor (IS) that comprises a sensor element (33a) for visible light and a sensor element (34a) for infrared light, and a controller (7). The present invention is characterized in that the device also comprises a zoom lens unit (32a) that can change the lens rate of imaging on the film that is on the front surface of the sensor element for infrared light under the operation of the controller (7), and an illuminator (FT) that consists of a glass plate or a lens and is used for changing the focusing position. The illuminator (FT) is arranged between the zoom lens unit (32a) and the sensor element (34a) for infrared light, and can realize a retracing operation between the zoom lens unit (32a) and the sensor element (34a) for infrared light, according to the rate change of the zoom lens unit (32a) under the drive of a drive device, and can redress the change of the focusing position, which is caused by the rate change.

Description

Apparatus for reading images from photographic film

Technical field

The present invention relates to a kind of apparatus for reading images from photographic film and method of adjustment thereof, visible light and the infrared light that light source penetrates can be radiated on the film, read film image with sensing element and infrared light with sensing element with visible light.

Background technology

About apparatus for reading images from photographic film, be rayed that light source is penetrated on film, general, the light that is seen through goes out with the CCD sensing element senses, reads the device of the photographs on the film then.

Such apparatus for reading images from photographic film, its basic functions is the photographs of reading on the film, but in recent years, the scar and the dust that have on the film also go out as image detection, according to the determined position that has scar and dust, consider the image that influenced by these scars and dust to read is revised to improve the quality of image.

The above-mentioned detection to scar and dust for example, is opened as the spy and to be recorded and narrated in flat 6-28468 communique and the flat 9-163133 communique of Te Kai, carries out according to the infrared view of the film that obtains.Roughly say to be exactly to have utilized visible light influenced by it, the phenomenon that itself not influenced by it to photographs on the film but infrared light can be subjected to the influence of scattering for the scar that has on the film and dust to scar and the dust that has on photographs on the film itself and the film.

As the formation that can obtain such infrared view, Te Kaiping 6-28468 communique, be that the light that will be radiated on the film switches by visible light and infrared light successively with rotation shape filter, obtain visual image respectively and infrared image constitutes at different time points, and the spy opens flat 9-163133 communique, then constitutes for above-mentioned visual image and infrared image are detected on the light table that is provided with respectively.

So, be to divide other time point detected visual image and infrared image in above-mentioned formation in the past, detection to each image needs the time long, and, in the formation that visual image and infrared image are detected on the light table that is provided with respectively, the position relation that two images might occur is corresponding incorrect, and constituent apparatus maximizes simultaneously, and these are all undesirable.

In addition, in above-mentioned example in the past, do not measure the record of multiplying power about changing film image.

In addition, present apparatus for reading images from photographic film, the size or the stamp with the size of the film of corresponding and various existence itself, require visible light to read film image with various multiplying powers more strongly with sensing element, when can changing visible light and reading multiplying power with sensing element, require the infrared light also will be with its interlock with sensing element, make film image infrared light with the sensitive surface of sensing element on the lens multiplying power of imaging also can change.

Can carry out the lens that this multiplying power changes, usually, though be not with its multiplying power but with the design of certain focal position, but only for visible light, inventor of the present invention uses when using the optimization lens to read infrared image to such visible light, owing to the reason of the wavelength interdependence of refractive index, the change of the focal position that produces with the variation of lens multiplying power is big to the degree that can not ignore, and it is image blurring promptly to produce what is called.

At this moment,, drive infrared light and move accurately to optical axis direction, can bring the complicated of structure with sensing element though will consider to absorb the structure of the change of the focal position that moves to optical axis direction with the variation of sensing element multiplying power along with infrared light.

Simultaneously, inventor of the present invention, the visual image and the infrared image of film are contrasted, the same film that discovery promptly uses same lens to read, on the position of the same thing on the film image (with a part), the image information that obtains with sensing element with visible light and very little departing from arranged with the image information that infrared light obtains with sensing element.

Summary of the invention

In view of the above fact, the purpose of this invention is to provide a kind of position relation that can correctly determine visual image and infrared image, the apparatus for reading images from photographic film that can detect two images fast simultaneously.

Another object of the present invention is when can changing the lens multiplying power and reading infrared image, also can read good infrared image with simple structure.

Of the present invention also have a purpose to be, make the image information that obtains with sensing element with visible light and the image information that obtains with sensing element with infrared light between the position relation accurately corresponding.

To achieve these goals, to be visible light and infrared light penetrate to read at film image with light path and the state deposited for apparatus for reading images from photographic film of the present invention, its light source, is radiated on the film.Read sensing element about image, go out visual image with the sensing element senses of visible light, the sensing element senses with infrared light goes out infrared image simultaneously.

Promptly owing to make visible light and infrared light in film image is read with light path and deposit, thus not only can detect visual image and infrared image on the film respectively with single light table, and can obtain two images simultaneously.

By the apparatus for reading images from photographic film of the invention described above, can provide a kind of position relation that can correctly determine visual image and infrared image, the apparatus for reading images from photographic film that can detect two images fast again simultaneously.

In addition, the apparatus for reading images from photographic film by the invention described above is provided with the light path branch unit in film image is read with light path, and visible light shines with sensing element towards visible light, and infrared light shines with sensing element towards infrared light simultaneously.

Detecting the infrared light sensing element of the visible light of visual image with sensing element and detection infrared image, is similarly as its structure of sensing element, so can be integral.But usually the treatment system to visual image and infrared image two sides might not be common, and visible light is made incorporate sensing element with sensing element and infrared light with sensing element is very difficult to hang down the manufacturing cost manufacturing.

So, utilize the light path branch unit be set in film image is read with light path as mentioned above, even when configuration visible light usefulness sensing element and infrared light are used sensing element in addition, above-mentioned visible light and infrared light same with light path in and to deposit also be possible.

Also have, by the apparatus for reading images from photographic film of the invention described above, with the Cold Mirrors formation visible light is shone with sensing element towards visible light, infrared light is towards the light path branch unit of infrared light with the sensing element irradiation simultaneously.

Cold Mirrors uses as general speculum in a lot of occasions, but utilizes its reflect visible light, sees through infrared light and prevents the characteristics such as overheated of illumination path, utilizes this Cold Mirrors as the light path branch unit, can alleviate the design burden.

Also have,, use between the sensing element, be provided with infrared ray blocking filter at Cold Mirrors and visible light as the light path branch unit by the apparatus for reading images from photographic film of the invention described above.

Promptly, but though with the Cold Mirrors reflect visible light, but might sneak into some infrared lights in the visible light by Cold Mirrors reflection, can stop such infrared light reliably with infrared ray blocking filter, can prevent visible light with the overheated of sensing element with detect correct visual image.

And it is in that part of light path of object that this infrared ray blocking filter only is arranged on the visible light, can not increase burden to design so can intactly utilize the infrared ray blocking filter that used in the past.

Also have,, between film image is read with light source and film in the light path, be provided with and adjust the light modulation filter of setting the look equilibrium to infrared ray blocking filter with to film by the apparatus for reading images from photographic film of the invention described above.

Usually, infrared ray blocking filter and light modulation filter are that purpose designs to stop infrared light to see through all, so just being necessary the infrared ray blocking filter of design that way and light modulation filter when detecting the infrared image of film removes reading with light path from film image, bring obstacle can for like this detection of the visual image of film, also can cause being arranged on the overheated of parts in the light path simultaneously.

At this, the wavelength characteristic of the light transmission of infrared ray blocking filter and the combination of described light modulation filter is, for detecting image with sensing element with infrared light, and the infrared ray that allows to set wave-length coverage sees through, and interdict the infrared ray beyond the described setting wave-length coverage, though use the available infrared light of this formation to carry out image detection with sensing element, but infrared light interdicts with the infrared light of sensing element with unnecessary wavelength, even the apparatus for reading images from photographic film that detects infrared image is arranged, can prevent that also film or optics are overheated.So, ultrared blocking to the wavelength beyond the above-mentioned setting wave-length coverage, might not be necessary to stop setting wave-length coverage FR ultrared seeing through in addition, as long as in the allowed band that the optics temperature rises, suitably set the blocking wave-length coverage, and the ultrared characteristic of this blocking realizes getting final product with the coordination of infrared ray blocking filter with the light modulation filter, and unnecessary two filters all have infrared ray and interdict characteristic.

For realizing the 2nd purpose of the present invention, apparatus for reading images from photographic film of the present invention, if the lens multiplying power of the image imaging on the film is changed, change along with its multiplying power, use between the sensing element at lens and infrared light, the focal position that optical axis direction is departed from is changed go out to move back operation with light penetrating object.

It is consistent to use focal position to change the focal position that the bias with the focal position of light penetrating object changes with the change of lens multiplying power, according to this point, change with this focal position and to go out to move back operation with light penetrating object, correction is with the change of the focal position of the change of lens multiplying power, so no matter how the lens multiplying power changes, stable focal position is all arranged on the sensitive surface of sensing element at infrared light.

Therefore, only so that the focal position change with the simple structure that goes out to move back operation of light penetrating object, reaches the purpose that can read good infrared image.

In addition, by the apparatus for reading images from photographic film of the invention described above, described focal position changes and is made of glass plate with light penetrating object, with the change glass plate of lens multiplying power lens and outside light go out to move back operation between with sensing element.

When inserting glass plate between lens and the outer light usefulness sensing element, be subjected to the refractive index of its glass plate and the influence of thickness of slab approx, focal position is to moving away from the lens direction.So, by set glass plate make only have by with make refractive index and the thickness of slab of focal position according to the suitable distance of the variation of the change focal position of lens multiplying power away from lens, can revise the change of the focal position that the change owing to the lens multiplying power produces.

Like this, if between lens and infrared light are with sensing element, glass plate is set, though this is the reason that produces aberration, but be conceived to because the change of multiplying power makes its aberration of change of focal position not have big problem this point, can constitute focal position change light penetrating object with the so extremely simple parts of glass plate.

In addition, apparatus for reading images from photographic film by the invention described above, to be visible light and infrared light penetrate to read at film image with light path and the state deposited light source, and lens all can make film image imaging with sensing element and visible light with which of sensing element for being infrared light.

Just, visible light is arranged on different position with infrared light with sensing element with sensing element, film image is read with the light path branch unit that is provided with in the light path, and visible light is shone with sensing element towards visible light, and infrared light shines with sensing element towards infrared light.

Like this, visible light is arranged on different position with infrared light with sensing element with sensing element, owing to can set their position that is provided with respectively, the focal position difference between visible light and the infrared light can be absorbed by the appropriate location of setting respectively.

Yet, when visible light is used the sensing element common lens with sensing element and infrared light, from paying attention to reading out in the viewpoint of the original function of photographs on the film, the multiplying power of lens is set at the constant principle of focal position for visible light even change, to aforesaid very effective with sensing element one side correction focal position at infrared light.

For realizing another object of the present invention, apparatus for reading images from photographic film of the present invention, to be visible light and infrared light penetrate to read at film image with light path and the state deposited light source, when this visible light and infrared light are radiated on the film, lens with the image of film be imaged on respectively visible light with the sensitive surface of sensing element and infrared light with on the sensitive surface of sensing element.

In visual image that obtains like this and infrared image, the correction of the image that record can enough infrared lights be read is arranged on image with plate and reads on the allocation position of film of object, using this to proofread and correct the image of reading with sensing element with the infrared light of plate, the position on the film image between definite image information that obtains with sensing element with visible light and the image information that obtains with sensing element with infrared light concerns.

Promptly, inventor of the present invention find the above-mentioned image information that obtains with sensing element with visible light and the image information that obtains with sensing element with infrared light between very little position deviation is arranged, be owing to the multiplying power reason devious slightly of the lens in the zone of the zone of visible light and infrared light, detect this small difference of magnification and position deviation is carried out revisal with plate with proofreading and correct.

Yet, the image that on proofreading and correct, writes down with plate, for example be used as the image of the length direction of benchmark, this image is gone out the image that can read how many length directions with infrared light with sensing element senses, can correctly determine the multiplying power of infrared light according to this detection, correctly determine the multiplying power of visible light with sensing element and not necessarily be necessary to use this to proofread and correct with plate with sensing element.

In addition, apparatus for reading images from photographic film by the invention described above, correction also can be read according to visible light with plate, to comparing with sensing element and the infrared light image information with sensing element from proofreading and correct the visible light read with plate, the position on the film image between definite image information that obtains with sensing element with visible light and the image information that obtains with sensing element with infrared light concerns.

That is, owing to being that benchmark read the image proofreaied and correct with plate with sensing element and infrared light with sensing element two sides with visible light, the position relation of carrying out between visual image and the infrared image is adjusted, so can more correctly adjust.

In addition, by the apparatus for reading images from photographic film of the invention described above, correction constitutes with the metallic plate of plate by band groove or through hole.With such structure, the image that writes down on the metallic plate with groove or through hole can be read by enough infrared lights really.

Therefore, the position relation between the image information that obtains with sensing element to the image information that obtains with sensing element with visible light with infrared light can more correctly be adjusted.

In addition, by the apparatus for reading images from photographic film of the invention described above, but lens have the structure that the multiplying power multistage changes.Though can change corresponding neatly size or the printout size of reading the film of object of lens multiplying power to set as image, but inventor of the present invention found when like this changing the multiplying power of lens, and the position corresponding relation between image information that obtains with sensing element with visible light and the image information that obtains with sensing element with infrared light is the phenomenon that the variation according to multiplying power changes.So, each setting multiplying power to lens, position relation between the image information that obtains with sensing element by the image information determining to obtain with sensing element with visible light with infrared light on the described film image is even also may correctly make the position of visual image and infrared image corresponding when the lens multiplying power is done various variation.

And, apparatus for reading images from photographic film by the invention described above, the correction of the image that record can be read with visible light and infrared light is arranged on as image with plate and reads on the allocation position of film of object, with lens this being proofreaied and correct the image imaging of using plate uses on sensing two sides' the sensitive surface with sensing element and infrared light at described visible light, the correction that the correction that visible light is read with sensing element is read with sensing element with the image of plate and infrared light compares with the image of plate, determine the image information that obtains with sensing element with visible light and the image information that obtains with sensing element with infrared light between position relation on the described film image.

Like this, can use image information that visible light obtains with sensing element and the image information that obtains with sensing element with infrared light between position relation on the described film image correct corresponding.

Description of drawings

Below accompanying drawing is described.

Fig. 1 is the summary unit pie graph that is applicable to image printer of the present invention.

Fig. 2 is the wavelength characteristic figure about embodiment of the invention middle infrared (Mid-IR) blocking filter.

Fig. 3 is the wavelength characteristic figure about light modulation filter in the embodiment of the invention.

Fig. 4 is the wavelength characteristic figure about embodiment of the invention middle infrared (Mid-IR) blocking filter.

Fig. 5 is the summary unit pie graph that is applicable to another image printer of the present invention.

Fig. 6 is the configuration instruction figure that infrared light of the present invention shown in Figure 5 is used sensing element.

Fig. 7 is the summary unit pie graph that is applicable to another image printer of the present invention.

Fig. 8 is the key diagram of proofreading and correct in the embodiment of the invention shown in Figure 7 with plate and its image.

Fig. 9 is about the flow chart in the embodiment of the invention.

Among the figure: 1. film, 3. apparatus for reading images from photographic film, 31a. light source,, 31c. infrared ray blocking filter, 31d. light modulation filter, 32b. light path branch unit, 32c. infrared ray blocking filter, 33a. visible light sensing element, 34a. infrared light sensing element, 40. glass plate, 50. correction is used plate, IS. image to read and used sensing element, the FT focal position changes uses light penetrating object.

Embodiment

Below, based on accompanying drawing, the embodiment of the image printer that is equipped with apparatus for reading images from photographic film of the present invention is described.

What the image printer IP in the embodiment of the invention adopted is the digit explosure formula, as shown in Figure 1, it has the film scanning machine 3 of the image of the photographic film (being called for short film later on) 1 that carried out development treatment being read as DID and being used as apparatus for reading images from photographic film with the film developing machine that does not show among the figure, with the DID that obtains is handled the controller 7 that makes print data, carry out the development treatment portion 6 of development treatment with the figure punch portion 5 that image is exposed based on this print data and the photographic pape 2 that will expose on photographic pape 2.Finish print image in the photographic pape 2 drying operations that development treatment portion 6 developed, discharge then.

Film scanning machine 3 as the main composition parts, has lamp optical system 31, image pickup optical system 32, and the image of use CCD sensing element is read and is used transducer IS.

Lamp optical system 31 is by the Halogen lamp LED 31a as light source, be the slightly speculum 31b of directional light with light reflection with Halogen lamp LED 31a, with infrared ray blocking filter 31c, be adjusted into the light modulation filter 31d of desirable balanced color with ejaculation light and constitute for distribution of color and the uniform speculum passage of the intensity distributions 31e that makes light Halogen lamp LED 31a.

The image of film scanning machine 3 is read and is used transducer IS in the present embodiment, also to be elaborated later on, visible light with the visual image that detects film 1 is with sensing element 33a and detect the infrared light sensing element 34a of the infrared image of film 1, can obtain having scar or dust state on the film 1 as image information with sensing element 34a with infrared light.So above-mentioned optical system also will allow to pass through as the infrared light of infrared light with the wave-length coverage of sensing element 34a detected object.

Therefore, infrared ray blocking filter 31c, as shown in Figure 2, be set in principle on the low transmission of infrared wavelength range of about 781nm～1100nm, but infrared light with photoelectric conversion department 34 set as a little high wave-length coverage of detected object at 820nm～890nm.

And, light modulation filter 31d, as shown in Figure 3, adjust transmitance has the color of interdependence to institute's standing wave length equilibrium in visible light field than 780nm short wavelength, simultaneously set lower transmitance in principle in the infra-red range of about 790nm～1000nm, same infrared light with photoelectric conversion department 34 settings as a little high wave-length coverage of detected object at 820nm～890nm.

So, the wavelength characteristic of infrared ray blocking filter 31c and the light transmission of light modulation filter 31d combination be set at for infrared light with transducer 34a can detected permission afore mentioned rules wave-length coverage infrared ray through and interdict described setting wave-length coverage infrared ray in addition.And, such wavelength characteristic, reach with the combined characteristic of two filter 31c, 31d and to get final product,, just not necessarily will be provided with the ultrared transmitance of light modulation filter 31d low if the ultrared transmitance setting of blocking wave-length coverage is lower on infrared ray blocking filter 31c.

For making infrared ray blocking filter 31c and light modulation filter 31d have above-mentioned wavelength characteristic, these filters are formed by the so-called interferometric filter made from multilayer film, but also can realize above-mentioned various wavelength characteristic with single glass filter, can most glass filters that wavelength characteristic is different overlap for reducing cost also and realize.

Image pickup optical system 32 constitutes by Zoom lens unit 32a with as the speculum 32b of light path branch unit and the infrared ray blocking filter 32c of the going direction changing direction that makes light.

Speculum 32b is made of so-called cooling down, and visible light is advanced by speculum 32b reflection ray and changed 90 degree directions, shine with sensing device 33a to visible light, an other side, the major part of infrared light maintains the original state directly to advancing, to infrared light sensing device 34b irradiation by speculum 32b.

Infrared ray blocking filter 32c, be as the element of thoroughly removing through some infrared lights of speculum 32b reflection, different with the infrared ray blocking filter 31c of above-mentioned lamp optical system 31, as shown in Figure 4, transmitance in the infrared wavelength range of about 820nm～890nm is provided with very lowly, stops to inject infrared light to visible light with sensing device 33a.

Become the transmitance of infrared light among above-mentioned infrared ray blocking filter 31c and the light modulation filter 31d with the infrared wavelength range of about 820nm～890nm of photoelectric conversion department 34 detected objects, transmitance with this wave-length coverage among the above-mentioned speculum 32b, penetration mirror 32b, to the inject luminous intensity of infrared light with photoelectric conversion department 34, be set in below the saturated light intensity of its output signal, and in the range of light intensities more than 1/2 signal strength signal intensity of saturation condition.

Visible light sensing device 33a, be to carry out the device of light-to-current inversion by the visible light in image pickup optical system 32 lead beams, corresponding to red (R), green (G), the of all kinds CCD line sensing element that is provided with is integrated on 1 chip of blue (B) constitutes, and CCD line sensing element is at main scanning direction, it is the photoelement that is subjected to that has a lot (for example 5000) configuration on the Width of film 1, be subjected to form on the sensitive surface of photoelement each R, G, B colored filter at these.

Visible light amplifies processing with A/D conversion then to controller 7 outputs by visible light with signal processing circuit 33b with the detection signal of sensing element 33a.

Infrared light sensing element 34a, though have and the visible light same formation of sensing element 33a, visible light corresponding each R of sensing element 33a, and G, B have 3 CCD line sensing elements, only are provided with the CCD line sensing element that infrared light is used on the contrary.

Infrared light amplifies processing with A/D conversion then to controller 7 outputs by infrared light with signal processing circuit 34b with the detection signal of sensing element 34a.

In case determined the scanning position of the block diagram picture regulation of film 1, just begun block diagram is looked like to read processing.The operation of the projected light picture of block diagram picture by carrying to the sub scanning direction of film 1 with film travel mechanism 9, read with sensing element 34a with sensing element 33a and infrared light by visible light successively with the form that is divided into most Slit Image, with R, G, the picture signal of each colour content of B and the picture signal of infrared composition are carried out light-to-current inversion, produce initial DID and are sent to controller 7.Like this, the lamp optical system 31 of film scanning machine 3, shooting lamp optical system 32, image is read with the control of each one of sensing element IS and is undertaken by controller 7.

On film scanning machine 3, except that the reading of above-mentioned film image data, also have and to omit the magnetic playback head that does not show in the drawings, it has the function of reading with the stamp with the size information of magnetic recording etc. on film.

In figure punch portion 5, this embodiment has adopted PLZT shutter mode.Promptly, adopted the fast gate array of forming by the PLZT element as photohead 5a.Import R, G, B each coloured light by optical fiber 53 to each shutter by light source cell 5b.This fast gate array is along the Width of photographic pape 2, and promptly the transverse direction of its moving direction is lined up 2 row and striden across photographic pape 2 and extends, if add assigned voltage to each shutter, both has been light transmission state (opening state), both has been light blocking state (closing state) if stop pressurization.Each shutter is corresponding to the pixel of exposure image, according to the switching of each shutter, to exposing in the view data of 1 line part of extending on mobile transverse direction with the width of 1 pixel part on the photographic pape moving direction.

Light source cell 5b has and illustrates abridged to some extent, illuminator, and the light that illuminator is penetrated is adjusted at the light modulation filter of desirable color balancing scope, and the rotating filtering sheet etc.Be arranged side by side redness (R) on the circumferencial direction of rotating filtering sheet, green (G), each optical filter of 3 looks of blue (B), this rotating filtering sheet is often with the certain speed high speed rotating, make R, G, 1 alignment light source among the B selects the light of look to be sent to shutter by optical fiber by that filter of the same colour.

Controller 7 is based on the image information from 3 inputs of film scanning machine, on photographic pape 2 its image correctly being reproduced, to each pixel, i.e. each shutter, and above-mentioned R, G, each light of B is set the length as the shutter opening time of exposure.

As the form of figure punch portion, except that this PKZT shutter mode, the liquid crystal shutter mode, the fluorescent light beam mode, FOCRT modes etc. are all known, can select arbitrarily corresponding to exposure function.

Photographic pape 2 is delivered to above-mentioned figure punch portion 5, then the photographic pape 2 that exposes in figure punch portion 5 further is sent to photographic pape 2 conveying systems of development treatment portion 6, as shown in Figure 1, division is listed as the exposure supply line 8B and the development pipeline 8C that carry with the photographic pape supply line 8A of single-row conveying with photographic pape 2 with 2 with photographic pape 2, between photographic pape supply line 8A and exposure supply line 8B, be provided with the distributor 4 that the photographic pape 2 that will carry successively from photographic pape supply line 8A distributes to each row of exposure supply line 8B.

As can be seen from Figure 1, photographic pape supply line 8A by can receive sensitization any one party in 2 printing cartons 10 of the web-like photographic pape 2 of the length of an outer side select photographic pape 2 and draw draw to roll crowd 8a and before distributor 4 is carried the distribution of photographic papes 2, roll crowd 8b and constitute.

Drawing downstream one side of rolling crowd 8a,, be provided with cutting,, be provided with back side printing portion 12 in this hand papercutter 11 downstreams one side with hand papercutter 11 for making the photographic pape 2 of drawing carry out exposed areas and stamp with the size matches from printing carton 10.Back side printing portion 12, at photographic pape 2 back sides (an opposite side of photosurface) with the ID and the image number of lettering sign film, the revisal information of the image processing of carrying out when making print data in addition etc. are used usually towards dot printing.

Roll crowd 8b before the distribution and be set to the form of clamping photographic paper back side printing portion 12, by the driving of non-sensitization one side of each photographic pape 2 of contact roll 81 with contact pressing of each photosurface and roll 82 and form, pressing roll 82 pairs of drivings roll 81 can far and near displacement, roll 81 and pressing and can press or release photographic pape 2 between rolling 82 in driving.

Exposure pipeline 8B has corresponding to each block diagram picture can roll the unit with the parallel very wide conveying of carrying simultaneously of 2 row with the photographic paper 2 that cuts off and corresponding to the guide member of each row.Just carrying the conveying of upstream one side to roll the unit is to drive to roll 83, and it is that the wide cuts that can cover 2 row are rolled, and rolls and is divided into right row and rolls 84a and left column rolls 84b with pressing with pressing and roll 83 relative pressing in driving.That is, right row roll 84a and left column rolls pressing of 84b with pressing with pressing, and are pressing and are removing and can separately carry out, and the photographic pape 2 of 2 cuttings can be sent to exposure position EP with 2 photographic papes 2 by photohead 5a simultaneously along number by rolling 84a and rolling 84b and collect and keep.

In the throughput direction both sides of the exposure position EP of photohead 5a, be provided with the 1st and carry and roll the 2nd of R1 and outlet one side and carry and roll R2 and drive these motors that roll.The 1st carries and to roll R1 and sidewinder 85 and the 1st drive and sidewinder 85 to the 1st pressing and roll 86 and constitute near what sow discord that direction moves with respect to this by driving with the 1st of photographic pape 2 non-photosurface one side contacts, and the 2nd carry and roll R2 and sidewinder 87 and the 2nd drive and sidewinder 87 to the 2nd pressing and roll 88 and constitute near what sowing discord that direction moves with respect to this by driving with the 2nd of photographic pape 2 non-photosurface one side contacts.

The 1st, R1 is rolled in the 2nd conveying, the switching of pressing the state and the state of releasing of R2 is by controller 7 controls, photographic pape 2 is in the conveying way of exposure position EP, its feed status can only rolled the R1 feed drive by the 1st conveying, R1 is rolled in the 1st conveying and R2 two side's feed drive are rolled in the 2nd conveying, only carries 3 kinds of feed status of rolling the R2 feed drive to switch successively by the 2nd.

Carry the conveying downstream of rolling R2 the 2nd, be provided with abridged crooked guiding mechanism in the diagram, make the transport path bending, along this path, be provided with the 1st turn to drive roll 91 with the 1st turn drive roll 91 can relative far and near displacement the 1st turn pressing and roll 92, and the 2nd turn drive roll 93 with this 2nd turn drive roll 93 can relative far and near displacement the 2nd turn pressing and roll 94.The 1st, the 2nd turning is carried pressing and is rolled 91, what be provided with between 93 does not show in the drawings crooked guiding mechanism, but the targeting part of its non-photosurface one side carries the fulcrum outward direction that shakes of downstream one side to shake by being arranged on, and the photographic pape 2 by crooked guiding mechanism can be heaved laterally as required.And, turn driving with the 1st and to roll the 91 and the 1st and turn pressing and roll 92 and keep the pressing of photographic pape 2, two sides of the photographic pape of carrying with 2 row of pressing object 2 have finished from exposure position EP and have passed through, and carry out after the exposure actions end.

Transport the zone successively with the photographic pape 2 carried distributor of sending into region allocation 4 from photographic pape supply line 8A to each row of exposure pipeline 8B, shown in the skeleton diagram among Fig. 1, by separately independently longitudinal direction and transverse direction the 1st clamping part 60A and the 2nd clamping part 60B that move driving constitute.

This 1st clamping part 60A and the 2nd clamping part 60B, omit among the figure, which can be carried photographic pape 2 clampings, the photographic pape 2 that the 1st clamping part 60A will accept from the conveying downstream of photographic pape supply line 8A drives pressing in the middle of rolling the 83 and the 1st to the centre and rolls 84a and draw and send, and, the photographic pape 2 that the 2nd clamping part 60B will accept from the conveying downstream of photographic pape supply line 8A drives pressing in the middle of rolling the 83 and the 2nd to the centre and rolls 84b and draw and send, the 1st clamping part 60A and the 2nd clamping part 60B replace lifting and carry, and distribute photographic pape 2 with 2 row transport way on exposure pipeline 8B.

Below, action roughly describes to the printing and making among the image printer IP of above-mentioned formation.

At first, will be the film 1 that the prints film scanning machine 3 of packing into, when carrying the image of each frame on the film 1 be read with film conveying mechanism 9.

Read the image on this film 1, read with sensing element 34a with infrared light when being to use visible light to read on the film 1 original image information of photography and be not the original image information of photographing on the film 1 with sensing element 33a, but with the scar that has on the film or the image information of dust.Read such image information with infrared light with sensing element 34a, inject photographs itself the not influence of infrared light on the film 1 on film 1, writing down, if but on film 1, exist scar or dust that scattering will take place the light quantity that sees through is reduced, can obtain to exist the image information of scar or dust like this.

Detect visual image and detect infrared image through the signal processing circuit 33b of visible light separately with sensing element 34a with sensing element 33a with visible light, infrared light signal processing circuit 34b input controller 7 then with infrared light.

In controller 7,, use each color of the image of photohead 5a exposure to set exposure with each pixel based on from the concentration information of visible light with each color of the visual image of sensing element 33a input.

At this moment, if have scar or dust on the film 1, exist the detectable concentration of part that variation has been taken place the original image concentration information with visible light with scar or dust in the image of sensing element 33a detection, if set by original exposure, resulting photograph will take place exist the parts of images of scar or dust with low quality.

For this reason in controller 7, based on infrared light with the detected information of sensing element 34a, determine the position of the scar or the dust of film 1, the detectable concentration information that will have a part with the scar in the photoelectric conversion department 33 detected image informations or dust with visible light concentration information of image around it carries out correcting process etc., sets exposure according to revised concentration information again.

If like this each pixel is set exposure,, carry out exposure actions with the exposure of setting at photohead 5a place and make image exposure for carrying the photographic pape 2 that passes through from exposure position EP by exposure pipeline 8B.

The photographic pape 2 that exposure-processed finishes is transported to development treatment portion 6 and carries out development treatment, after the drying photograph of finishing is discharged.

In by image printer of the present invention shown in Figure 5, be in the photographic optical system 32 of image printer shown in Figure 1, to be provided as the focal position that focal position and optical axis direction are departed to change the glass plate 40 of using light penetrating object FT.Only its dependent part is described below.

Zoom lens unit 32a carries out the multistage multiplying power by controller 7 operations corresponding to the printout size of film 1 size and made and changes.Specifically, this multiplying power is set near the low range group of multistage 1 times and in the high magnification group of 2 times of left and right sides multistages.

Change glass plate 40 as focal position, change interlock with the multiplying power of Zoom lens unit 32a with light penetrating object FT, between Zoom lens unit 32a and infrared light are with sensing element 34a by figure in the abridged drive unit make the deactuate work.

Reading with sensing element 34a film image to infrared light from Zoom lens unit 32a with the position in the light path according to this glass plate 40, move to the direction away from Zoom lens unit 32a the imaging and focusing position of the image of film 1.

As mentioned above, Zoom lens unit 32a is set to low range group and high magnification group, if multiplying power with such variation, can fully suppress the focal position change to visible light, and the infrared light focal position is changed slightly.

Promptly, shown in Fig. 6 (a), when the position of Zoom lens unit 32a was [A], the focal position in the visible region was [B] position, though with the multiplying power of Zoom lens unit 32a as above-mentioned low range group and high magnification group between when changing this position can not change yet.On the other hand, in infrared light region, when the multiplying power of Zoom lens unit 32a was set in the low range group, [C] position was a focal position, and when the multiplying power of Zoom lens unit 32a was set in the high magnification group, [D] position was a focal position.

The change of the focal position of this low range group and high magnification group is read with the deactuate that goes out in the light path at film image by glass plate 40 and is absorbed.Be described more specifically, for example, if poor (△ f) is made as [0.2mm] with the focal position of low range group among Fig. 6 (a) and high magnification group, glass plate 40 is inserted film image to be read with in the light path, at this moment if focal position is set from Zoom lens unit 32a away from [0.2mm], shown in Fig. 6 (b),, infrared light preferably is set locates at the focal position [D] of high magnification group with the sensitive surface of sensing element 34a to read from film image with the state that removes glass plate 40 light path.

Be provided with infrared light sensing element 34a like this, when the multiplying power of setting Zoom lens unit 32a during in the high magnification group, glass plate 40 be in from film image read with the state that removes the light path, infrared light is in focal position with the sensitive surface of sensing element 34a.On the other hand, when the multiplying power of setting Zoom lens unit 32a during in the low range group, glass plate 40 inserted read with the vertical position of light path with film image, the infrared light that is in [D] position becomes focal position with the sensitive surface of sensing element 34a.In addition, as focal position from Zoom lens unit 32a only away from the concrete numerical example of the glass plate 40 of [0.2mm], for example, when using the glass plate 40 of refractive index n [n=1.33], the thickness of slab t that calculates glass plate 40 with the approximate calculation of near axis area is about 0.6mm.

Like this when reading the image of film 1, as mentioned above, suitably set the multiplying power that changes Zoom lens unit 32a corresponding to the size of film 1 and the size of printout, when setting the low range group, glass plate 40 is inserted film images read and use light path.

As mentioned above, when determining the position of scar or dust according to the infrared image of film 1 and carrying out revisal, be necessary the position of scar or dust is detected accurately.

Essence multiplying power as the Zoom lens unit 32a of the reasons of error that the location produces that detects scar or dust is slightly different for visible light and infrared light.

In order to address this is that, another embodiment of the present invention use plate as at image printer shown in Figure 7 image printer shown in Figure 1 further being increased to proofread and correct, and the correction of use as described below comes revisal with plate 50 with correct operation.Describe with regard to relevant portion below.

Correction uses the view of plate 50 thickness directions shown in Fig. 8 (a), forms the through hole 50a of 6 same diameters side by side on short this shape metallic plate.In other words, writing down the picture of 6 through hole 50a on proofreading and correct with plate 50, is metallic plates owing to proofread and correct with plate 50, can be read by enough infrared lights by the picture that 6 through hole 50a constitute.

Use and proofread and correct the correct operation that carries out with plate 50, undertaken by the handling process of in Fig. 9, showing by controller 7.The processing of Fig. 9 is according to beginning operation from operating desk input correct operation sign on by operator.

After operator has been carried out the instruction input that correct operation begins, make the length direction of proofreading and correct with plate 50 consistent with the Width of film 1 conveying, and make the thickness direction of proofreading and correct with plate 50 consistent, read with reading on the allocation position of film 1 of object (with reference to figure 7) (step #1) as image in the light path with this state insertion film image with optical axis direction.And, proofread and correct with plate 50 and have with the accessible structure that withdraws from from the allocation position of the film 1 of reading object as image of drive unit driving in abridged among the figure.

With this state, the picture IM1 imaging of the above-mentioned through hole 50a that Zoom lens unit 32a represents Fig. 8 (b) dotted line to already present plane with the sensitive surface of sensing element 33a at visible light.And, for understanding the figure among Fig. 8 (b) easily, only shown, and omitted other 2 one in the line sensing element of the setting of all kinds of RGB.

On the other hand, Zoom lens unit 32a infrared light with the sensitive surface of sensing element 34a to already present plane with Fig. 8 (c) in the picture IM2 imaging of the above-mentioned through hole 50a that represents of dotted line.

The multiplying power of Zoom lens unit 32a, owing to visible light and the slightly different reason of infrared light, the size of the picture of the through hole 50a of imaging, visible light is different with the picture IM2 of sensing element 34a with infrared light with the picture IM1 of sensing element 33a, in Fig. 8 (b) and Fig. 8 (c), a little exaggerations how much have been done for understanding easily.

Arranging PS1 and infrared light when visible light with the light receiving unit of sensing element 33a arranges PS2 with the light receiving unit of sensing element 34a and concerns when existing with the position shown in Fig. 8 (b) and Fig. 8 (c), if each light receiving unit is arranged PS1, PS2 is for the picture IM1 that detects each through hole 50a, the detection signal of the part of IM2 is through visible light signal processing circuit 33b and infrared light signal processing circuit 34b input controller 7, just can determine the picture IM1 of each through hole 50a from each signal, the position of IM2, as picture IM1, when the number of IM2 is less than regulation number (being 6 in the present embodiment), and, picture IM1 at a through hole 50a, IM2 exist width minimum the time, judge to proofread and correct and do not have end process with above-mentioned correct state insertion (step #2) with plate 50, if the picture data of through hole 50a are suitable, just measure the interval (step #3) of the picture of through hole 50a.

To the picture IM1 of this through hole 50a, IM2 measurement at interval, shown in Fig. 8 (b) and Fig. 8 (c), by obtaining the IM1 that looks like of each through hole 50a, IM2 marginal position E1, the mid point C of E2 obtains the interval of this mid point C then and carries out.

From the above-mentioned picture IM1 that obtains mean value and picture IM2 mean value at interval at interval, the ratio of the multiplying power the during image of multiplying power when obtaining the image of the film of reading with sensing element 33a with visible light 1 and the film 1 read with sensing element 34a with infrared light, from this ratio, for determining to concern with the position on film 1 image of the detected view data of sensing element 34a with the detected view data of sensing element 33a with infrared light, decision position correction formula (step #4) with visible light.

This position correction formula, for example, being benchmark with each block diagram of the film 1 of internal memory the sensing element 34a input controller 7 as the original position of data (in 4 angles of each block diagram picture) from infrared light, multiplying power ratio when the position of the view data of each pixel of infrared image is read film 1 image with above-mentioned visible light with sensing element 33a carries out conversion process with the position that changes aspect ratio, and this processing is undertaken by the address base of memory.So, controller 7 has based on proofreading and correct the image of reading with sensing element 34a with the infrared light of plate 50, the function that the position on the image of the film 1 between definite image information that obtains with sensing element 33a by visible light and the image information that obtains with sensing element 34a by infrared light concerns.

Yet, because infrared light can not detect the image of photography on film 1 itself with sensing element 34a, just can not determine the original position of the data of above-mentioned film 1 each block diagram picture with the detection signal of sensing element 34a itself from infrared light, but the original position that can obtain the data of each block diagram picture with the view data of reading with sensing element 33a from visible light is a benchmark, by with the positional information of original position on the image data memory that synchronization is read with sensing element 34a from infrared light of each frame data of visual image, the ratio of the multiplying power when multiplying power during with above-mentioned film 1 image of reading with sensing element 33a with visible light and film 1 image read with sensing element 34a with infrared light determines that each block diagram is as the original position of data in the infrared image.

The aforesaid processing of obtaining position revisal formula, carry out the setting of multiplying power change each time with Zoom lens unit 32a, so till the position revisal formula of deriving all multiplying power settings, multiplying power to Zoom lens unit 32a changes (step #5) simultaneously, carries out above-mentioned processing repeatedly.And the derivation of the position revisal formula of setting for each multiplying power is not necessarily carried out all multiplying powers and is set, and for example, in above-mentioned low range group and high magnification group, also can represent each group to derive position revisal formula one by one.

After the derivation of the position revisal formula that is through with all like this, will proofread and correct with plate 50 and read with withdrawing from (step #6) the light path from film image.

Below, list other embodiment.

1. the image in the foregoing description is read with sensing element IS and is had visible light sensing element 33a and infrared light sensing element 34a, go out visible light and infrared light with its sensing element senses respectively, but corresponding to visible light with the R that has on the sensing element 33a, G, B's is of all kinds, also be integrated with the CCD line sensing element that infrared light is used on the CCD line sensing element that is provided with, also can constitute with single line sensing element.

2. in the foregoing description, detect infrared wavelength range as detected object at about 820nm～890nm with infrared light with sensing element 34a, but this is nothing but a kind of change of doing corresponding to the detection characteristic of the infrared ray sensing element that uses in the infra-red ray detection device.

3. the light source in the foregoing description is to be made of and as visible light and infrared light two sides' ejaculation light Halogen lamp LED 31a, but light source also can be by visible light with light source and infrared light with the composite light source of light source as the constituting of light source, and penetrate light by which light source and all can constitute and inject film image and read optical system the light path of usefulness from these light sources.

4. in the above-described embodiments, exemplified the example that changes the glass plate 40 of using light penetrating object FT as the focal position that makes focal position to the optical axis direction skew, also available lens formation focal position changes uses light penetrating object FT.

5. in the above-described embodiments, exemplified visible light and the infrared light that penetrates from Halogen lamp LED 31a and existed film image to read, also the image of film 1 can have been detected visual picture or infrared image respectively on the light table of visible or infrared light with the example the light path.What at this moment, use on infrared image is read with light table is the lens of visible light with variable power.

6. in the above-described embodiments, exemplified example, also availablely most single focal lenses have been arranged on the rotating platform promptly so-called rotary variable power lens as the Zoom lens unit 32a of the lens of variable power.

7. in the foregoing description, being the structures of making a plurality of through hole 50a on sheet metal though proofread and correct with plate 50, can be substrate with film 1 also, and the figure of setting picture with evaporation metal makes.If such correction plate also can carry out aforesaid operations with processing film 1 usually equally.

8. in the above-described embodiments, with the picture of through hole 50a, but also can come document image with the groove of making until metal-sheet edges as record on correction usefulness plate 50.

Claims (1)

1. apparatus for reading images from photographic film, have: comprise light source lamp optical system (31), image pickup optical system (32), comprise that visible light reads with transducer (IS) and controller (7) with the image of sensing element (34a) with sensing element (33a) and infrared light, wherein the rayed that penetrates from light source is on film (1), read film image with sensing element (33a) and infrared light with sensing element (34a) with visible light, it is characterized in that also comprising:

Zoom lens unit (32a), it makes the lens multiplying power of the image imaging on the film change on the sensitive surface of described infrared light with sensing element under operation of controller (7); And

The focal position that is made of glass plate or lens changes with light penetrating object (FT), it is arranged on described Zoom lens unit (32a) and described infrared light is used between the sensing element (34a), its under the driving of drive unit according to the variation of the multiplying power of described Zoom lens unit (32a), between described Zoom lens unit (32a) and described infrared light are with sensing element (34a), make and move back operation, carry out revisal with the change of focal position that the variation by the multiplying power of described Zoom lens unit (32a) is caused.

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