JPH06338989A - Transmission document reader - Google Patents

Abstract

PURPOSE:To make detailed dreading possible by means of an electronic viewer while quickly executing monitor display by means of a screen viewer by providing the screen viewer an the electronic viewer. CONSTITUTION:A transmission document reader is provided with an illumination unit, an optical unit 2 having CCD being a picture reading means, a magazine fixed to the optical unit 2 so as to be freely attachable/detachable and the optical viewer 8. By the optical viewer 8, the monitor of the transmission document picture such as a film, etc., can be immediately viewed but a high degree picture processing such as negative/possitive reverse, trimming, picture rotation, etc., cannot be executed so that the electronic viewer is also provided. The electronic viewer is provided with LCD 55 with a touch panel and an operating part 65 can rotate the picture by 90 deg. so as to display it by the selection of a user. Moreover, color calibration of a monitor screen and a printer device can be executed and the color of the picture after executing copying can be displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an original reading device for reading an image of an original with a reading element and converting it into a digital video signal or the like.

Especially when reading a transparent original such as a film,
The present invention relates to a means for monitoring a read image.

[0003]

2. Description of the Related Art In a conventional transparent original reading device,
A monitor means is provided in order to confirm what kind of image (original) is being read.

The monitor means has an electronic viewer for displaying on a liquid crystal display panel or a CRT based on the image information read by the image reading element, and the light imaged on the image reading element is selectively deflected on the way, and frosted glass or the like is used. There was a screen viewer that optically projected directly onto the mechanical screen of.

The electronic viewer has various merits such as easy image editing work and the fact that even a negative film can be converted into a complementary color and displayed to be displayed on a monitor.

[0006]

However, the electronic viewer cannot display the image information on the monitor screen until it is read by the reading device, and the image information cannot be read unless the sub-scanning is performed like the line CCD. In the case of the device, since the image cannot be completely displayed on the monitor until the sub-scanning is completed, it is necessary to wait for the scanning time, and there is a drawback that the usability is poor.

Further, when an optical screen viewer is used, the drawbacks of the electronic viewer can be eliminated, and the original can be immediately displayed on the monitor screen at the moment of insertion.

However, it is necessary to continue illuminating the original while displaying the image, which wastes power consumption for keeping the illumination lamp on, and discolors the film by keeping the illumination beam on the film. There is a drawback that it is easy to cause deterioration.

Further, since it is optically projected on the screen, the image on the negative film can be displayed only as an unnatural image, and it is difficult to display the editing work such as area designation and color conversion of the image in an easy-to-understand manner. It was

The present invention has been made to solve the above-mentioned problems of the prior art. The purpose of the present invention is to be able to instantly monitor the contents of a transparent original such as a film and to easily display complicated editing work. (EN) It is possible to provide a transparent original reading device having a monitor system that is capable of preventing image deterioration such as discoloration due to excessive illumination of a film during monitoring.

[0011]

In order to achieve the above object, according to the present invention, an illumination system for illuminating a transparent original, a holding means for holding the transparent original, and an image reading means for reading an image of the transparent original. And an image forming unit for forming an image on the image reading unit, a transparent original reading apparatus including a unit for selectively deflecting light going to the image reading unit and a screen member for forming an image of the deflected light. A screen viewer provided and an electronic viewer for displaying image information read by the image reading means are provided.

Further, the electronic viewer may be constructed integrally with the operation section and detachable from the main body of the transparent original reading apparatus.

Further, when the electronic viewer and the screen viewer are used, it is preferable to provide a selection means capable of selecting the priority order.

On the other hand, an illumination system for illuminating the transparent original, a holding means for holding the transparent original, an image reading means for reading the image of the transparent original, and an image forming means for forming an image on the image reading means are provided. In the transparent original reading device, an area-type element that does not perform sub-scanning is provided separately from the image reading means that performs sub-scanning, and means for selectively deflecting the light that goes to the image reading means, and the deflected light are described above. It is also possible to provide means for forming an image on an area type element and displaying the information on an electronic viewer.

[0015]

According to the transparent original reading device configured as described above, since the screen viewer and the electronic viewer are provided, it is possible to perform a detailed reading by the electronic viewer while performing a quick monitor display by the screen viewer. Becomes

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to illustrated embodiments. First, the overall unit arrangement of the embodiment will be described with reference to FIG.

FIG. 1 is a view of the transparent original reading device as seen obliquely from the rear. 1 is an illuminating unit which is an illuminating system for illuminating a transparent original, and 2 is a holding means which is detachably fixed to an optical unit 4. The magazine 3 is a carrier that is detachably fixed to the magazine 2 with the transparent originals suppressed.
Is an optical unit for removably fixing the magazine 2 and having a lens and a CCD as an image reading means for forming an image on the CCD. Reference numeral 5 is a CCD cover made of a conductive material. Completely covers the unit. This prevents radiated electromagnetic noise from the CCD portion.

Reference numeral 6 denotes an electrical equipment box portion for accommodating electric parts, which is made of a conductive material. In this example, as the conductive material, "Product name: Ulster steel plate"
Is used to improve conductivity.

Further, in this embodiment, the box structure is painted as it is to form a part of the exterior, thereby eliminating the cover of this part and realizing cost reduction.

Moreover, when a conductor such as a metal cover is separately attached to this portion, it may become an antenna for electromagnetic noise if it is electrically floating, but in this embodiment, no extra cover should be provided. It also suppresses the generation of electromagnetic noise.

Reference numeral 7 denotes an electrical equipment base which constitutes the bottom of the electrical equipment box portion, and is made of a conductive material like the electrical equipment box portion 6,
It is detachably fixed to and can be pulled out in the direction of arrow 14 on the rear side of the device. An electric board 12 and a power source 13 are fixed on the top of the electric board 12, and the electric board 12 and the power supply 13 are pulled out together to facilitate maintenance work.

Reference numeral 8 is an optical viewer for the operator to confirm which image is currently projected. This is configured such that a switching mirror is provided in the image forming optical path and is normally placed in a monitor state, and when the image is read by the CCD, the mirror is switched to form an image on the CCD.

Reference numeral 9 is a cooling fan for releasing heat of the illumination unit, 10 is a filter switching motor for performing filter switching drive for switching the spectrum of illumination light between a negative film and a positive film, and 11 is a leg for supporting the entire apparatus. is there.

Next, the mechanical arrangement of the embodiment will be described with reference to FIG. 2 along the direction from the halogen illumination lamp 28 side of the optical axis to the CCD side.

FIG. 2 is a view of the transparent original reading apparatus according to the embodiment as viewed from above. First, the lighting unit 1 will be described.

Reference numeral 28 denotes a halogen illumination lamp, which can change the light quantity depending on the density and type of the film. Two
Reference numeral 7 is a substantially hemispherical reflection mirror, and 29 is a condenser lens that collects light.

Reference numeral 30 is a heat insulating glass for reducing the infrared region of the light of the halogen illumination lamp 28 in order to prevent the damage to the original by raising the temperature of the transparent original. This is a square instead of a circle for cost reduction. Because the original is square, the heat-insulating glass can also be square, and considering the material removal, it is cheaper to make it non-circular as in the past.

Reference numeral 31 is a field lens, which is used together with a condenser lens to perform Koehler illumination.

A cyan filter 26 is used for canceling the color of the base film when a negative film is used as the original. Reference numeral 32 denotes an ND filter, which is used for the purpose of reducing the light quantity because the cyan filter 26 is not used when a positive film is used as the transparent original and the transparency of the film itself is good, and the light quantity is excessive. These two filters are driven exclusively by the filter switching motor 10. Reference numeral 24 denotes a filter position detection photosensor for stopping the switched filter position at a predetermined position.

Reference numeral 20 is a diffuser plate which is arranged between the transparent original and the illumination system, and which is for making the roughness of the film grain stand out.

As described above, 9 is a cooling fan for releasing the heat of the film or lens of the document heated by the energy (heat) of the infrared component from the illumination lamp 28 and the heat insulating glass 30, and the lower side of the lens. Air is sucked from the electrical equipment box portion 6 through the hole formed in the hole, passes through the lens portion, and is discharged to the outside. Reference numeral 25 is an exhaust hot air guide for guiding the flow of air to the outside so that the warmed air does not warm the CCD sub-scanning drive unit and the like.

Reference numeral 33 is a cover of an electric connector (not shown) between the magazine 2 and the main body. This is a connector shutter to prevent foreign matters such as clips from entering the female side of the connector when the magazine 2 is removed, and to prevent an accident such as a short circuit. It opens automatically when the magazine 2 is mounted. ing.

Next, the optical unit 4 will be described. Three
Reference numeral 4 is a magazine release link for releasing a link mechanism for holding the magazine 2 described later on the optical unit 4.
Fixed to the magazine release shaft 35, the magazine release handle 38
It is operated manually by.

Reference numeral 37 is a mirror as a deflecting means, which forms the light passing through the transparent original from the illumination unit 1 into an imaging lens 39.
It works to align and guide the optical axis to. Reference numeral 36 is a mirror adjustment link for aligning the optical axis.

An image forming lens 39 forms an image of the original 19 on the CCD. Reference numeral 40 is a lens drive cam for driving the imaging lens 39 in the direction of arrow 18 for automatic focusing (hereinafter referred to as "AF" or "autofocus"). The cam fits in the groove of the lens barrel of the imaging lens 39 and is driven by the lens drive motor 41. As a result, the AF drive mechanism is simplified and the cost can be reduced.

Further, the cam is a one-turn cam so as to return to the original position after one turn, and a home position sensor (not shown) is provided at a predetermined position.

The lens drive motor 41 is a stepping motor, and the rotation angle from the home position is accurately determined.
Is controlled to move and fix the lens at the proper AF position by the second rotation.

Reference numeral 44 is an optical path switching mirror as a selection means, and selects whether the image is formed on the CCD or the optical viewer 8. Reference numeral 42 is an optical path switching solenoid for moving the optical path switching mirror, and 43 is a lever for transmitting drive.

Reference numeral 55 is a CCD rail for moving the CCD in the sub-scanning direction, and 46 and 54 are ball bearings rolling on the rail. Reference numeral 53 is a CCD scanning base for moving the CCD in the sub-scanning direction, 48 is a CCD (image reading means) fixed to the CCD base, and 51 is an infrared cut filter provided immediately before the CCD 48.

As shown in FIG. 6, this is tilted downward in order to prevent adhesion of dust and the like. 52 is an infrared cut filter 51 attached to the CCD scanning base and CC
This is a CCD cover for protecting the D48 itself from dust and dust.

A home position sensor 49 detects the home position edge 23 of the CCD scanning base 53 to determine the home position position of the CCD scanning base 53. Reference numeral 50 denotes a limit sensor, which detects a limit edge 22 of the CCD scanning base 53 and moves the CCD scanning base 53 upward in FIG. This is informed to the microprocessor for motor control of the CCD sub-scanning drive motor 61 described later. This creates the timing of deceleration of the sub-scan.

A pre-home position sensor 56 detects the pre-home position edge 21 of the CCD scanning base 53 about 5 mm before the home position when the CCD scanning base 53 moves downward in FIG. Is configured to. This is because the CCD scanning base 53, which returns to the home position side at high speed, cannot be stopped immediately, so deceleration must be started before the home position 49. As a result, it is possible to optimally start deceleration near the home position sensor 49.

Conventionally, the number of pulses from the home position position is stored and the motor is controlled according to the number of pulses. However, the pre-home position 56 causes step out or malfunction in the middle and the number of pulses is unknown. Even in this case, the return speed can be kept high. In the past, when returning at high speed, it often stopped when the home position was detected.

Reference numeral 47 is a CCD driver board from which an image signal is sent out as an analog signal.

Next, the CCD sub-scanning drive unit will be described. Reference numeral 57 denotes a CCD sub-scanning drive belt which is stretched between the CCD sub-scanning drive pulley 59 and the idler pulley 45. The idler pulley 45 is pulled upward by a spring (not shown) with a predetermined force in FIG. 2 to apply a predetermined tension to the CCD sub-scanning drive belt 57.

This CCD sub-scanning drive belt 57 is a CCD
The scanning base 53 and the rail are connected at one point near the rail.
A deceleration belt 60 is stretched between the motor pulley 62 and the deceleration pulley 58. The deceleration pulley 58 and the sub-scanning drive pulley 59 are integrally connected. 61
Is a CCD sub-scanning drive motor, which is a stepping motor, and the distance for moving the CCD 48 with one pulse is CCD 48
Is set to 1 / integral of the pixel length in the sub-scanning direction. This facilitates the start / stop operation described later.

Reference numeral 63 is a motor mount on which the motor 61 and pulleys 58 and 59 are mounted.
It is made of vibration-damping steel plate so that it does not easily affect the image.

Reference numeral 64 denotes a sub-scanning drive unit base, which is movable and adjustable in the direction of arrow 17 in order to correct the magnification variation due to the manufacturing error of the lens 39.

FIG. 3 is a front view of the transparent original reading device.

Reference numeral 65 denotes an operation unit of the transparent original reading device, which includes a touch panel LCD 66 for displaying an image based on the image information read by the CCD 48 and a soft command, a control 67, and a copy start 68. , Copy stop 69, mode reset 70,
Each button is equipped with.

An image being read by the CCD 48 can be displayed on the screen of the LCD in real time.
On the left side of the reading boundary line indicated by 71, the image has already been displayed and the image is displayed.
The right side of 1 indicates an area 72 that cannot be displayed because the reading is not completed yet. In this way, the scrolling display can alleviate the annoyance of the user during the pre-scan.

The unit of the operation section 65 is not necessary when the system of this embodiment is assembled by connecting the apparatus of this embodiment to an apparatus having an operation keyboard and a display section, such as a computer, and is therefore detachable. Is attached to the reading device body. In this case, only a computer is used instead of the operation unit 65, and the operation itself is almost the same.

As described above, the monitor image reading operation by the CCD 48 is called prescan, and the carrier state detection sensor 171 of FIG. 17, which will be described later, detects that the carrier has come to a predetermined position, and after a predetermined time elapses, Start automatically. Note that the display on the LCD 66 is instantaneously displayed by using the image data and the mode setting data read before when the carrier is pulled back to the place where the carrier has already been read by storing several pages in the video RAM as shown in FIG. You can do it.

However, until a new image is read and the image of the entire transparent original can be displayed on the LCD, the CCD 48 is used.
It takes about 1 second, which is the time when the sub-scan is completed (that is, the time when the prescan is completed).

An optical viewer (screen viewer) 8 is provided for the purpose of eliminating this lag time. Since this is realized by only changing the optical path with the mirror 44 shown in FIG. 2, it is possible to display an image without a lag time simply by inserting the carrier and turning on the illumination lamp 28.

However, when the mirror 44 is moved to the position where the image is displayed on the optical viewer 8, the image cannot be read by the CCD 48, and further, there is a process such as trimming of the image which can be performed only by the electronic viewer. hand,
By default, if the user does not select a mode, the electronic viewer will be used preferentially.

When the user changes the mode to use the optical viewer 8, after confirming the image to be read with the optical viewer 8, the user presses the control button 67 to display the image on the mirror 44 with the CCD 48. Since it is changed to the reading side and the prescan is started, it is displayed on the LCD display section of the operation section 65 at the same time.

As another monitor image reading method, a CCD of area sensor type is separately provided, and when the image is monitored, an image is read by using an area sensor provided exclusively by switching the optical path or further for area sensor. If a dedicated lens is provided and the monitor image is read by the area sensor without switching the optical path, the image can be displayed on the LCD 66 almost in an instant.

In the case of switching the optical path, the image is read by switching the optical path to the line type color CCD 48 side when reading the image of the transparent original. As described above, by separately providing the area-type CCD dedicated to the monitor, the cost is increased, but it is possible to provide a transparent original reading device having excellent usability.

Further, as a method of reading the monitor image before the reading operation without using the costly area sensor type CCD as described above, the image reading CCD 48 is used to carry the carriers 3, 1 in the magazine 2.
It is also possible to consider a method of scanning when inserting 68.

In this case, the user is the carrier 3,16.
Since it depends completely on the insertion speed when inserting 8, the encoder that detects the insertion speed of the carrier, the damper means that makes the insertion speed almost constant, the accumulation of the CCD 48 in conjunction with the insertion speed A CCD control means for changing the time and the light amount of the illumination lamp, a lamp control means, and a means for detecting the inserting direction of the carriers 3 and 168 (when pulling out and inserting) are used to detect the inserting direction. You will need it.

Further, it is possible to move the CCD 48 in the direction opposite to the inserting direction of the carrier to increase the relative sub-scanning speed at the time of reading to shorten the reading time.

Further, as a method of making the operation of reading and displaying the monitor image comfortable, there is a method of providing a monitor image memory for storing the monitor image once read, for example, a video RAM for a plurality of images.

By providing an image memory for a plurality of originals in this way, when the carrier is moved to another frame, an object corresponding to the frame of the corresponding carrier is carried out from the stored monitor image and displayed. It becomes possible to do, and the usability is improved.

If the flow-reading method is additionally used in this embodiment, when the carrier 3 is inserted in the direction perpendicular to the device line of the CCD 48 (in the embodiment, the carrier 3 is inserted in the horizontal direction), You can scan it,
When the carrier 3 is inserted in the vertical direction (vertical direction) of the embodiment, the flow reading cannot be performed, and at this time, the monitor image must be created by the prescan of the CCD 48 itself.

Therefore, as shown in FIG. 17, the carrier 3
Carrier state detection sensor 17 for detecting the insertion direction of
1 is provided so that which method can be used to read the monitor image can be determined.

Reference numeral 73 is a magazine fixing link for pressing and fixing the magazine 2 to the optical unit 4, and FIG.
It functions to press down the magazine fixing portion 167 shown in FIG. Positioning notches 166 are used to position the magazine in the height direction and in the horizontal direction.

A fixed link / latch link 74 holds the magazine fixed link 73 at the release position when it is released.

When the user rotates the magazine release handle 38, the magazine release shaft 35 and the magazine release link 34
Activates and pushes down the link for the fixed link / latch.
Then, since each link moves in the direction shown by the dotted line in FIG. 3 and there is nothing pressing the magazine 2 from above, the magazine can be removed in the upward direction.

A latch release link 75 is rotatably connected to the fixed link / latch link 74. When the magazine 2 is inserted from above, it is pushed by the bottom of the magazine 2,
The latch release lever 76 rotates and the latch release link 75
Push up. Then link 74 is link 73
And the magazine 73 is rotated by the magazine fixing spring 77 to press the magazine from above.

Reference numeral 79 is an article for holding the magazine at the reference position by a magazine pressing link, and a roller is provided at the front end so that the magazine 2 can be moved smoothly when it is inserted from above.

The magazine pressing link 79 is constantly urged by a magazine pressing spring 78 in a predetermined direction.

Reference numeral 80 denotes a lamp socket, which is an illumination lamp 28.
Is a consumable part and improves workability during replacement work.
It is fixed to a lamp base 82 which is swingable.

Reference numeral 83 denotes a frame on the rear side of the lighting unit 1, which is a lighting part frame with an exhaust hole in which holes for cooling lenses and the like are formed.

Reference numeral 84 denotes a field lens / heat insulating glass support, which is formed as a unit so that it can be easily assembled when disassembled.

Reference numeral 85 denotes a condenser lens support, which is unitized for the same purpose as the field lens / heat insulating glass support 84.

Reference numeral 86 denotes a shutter member which is provided near the illumination lamp 28 so that it can be freely taken in and out.

This is a "start / stop of CCD sub-scanning" which is carried out by a facsimile or the like when the recipient of the image signal is a device such as a personal computer having a slow processing speed and the image memory is not interposed in the signal passing portion. This is because the operation has to be performed.

That is, if the illumination lamp 28 is turned off each time the CCD sub-scan is stopped, the lamp temperature fluctuates, the spectral distribution of the illumination light changes, or the lamp life shortens due to the inrush current. This is provided for the purpose of preventing the deterioration of the transparent original such as a film by irradiating extra light to the transparent original such as a film because a harmful effect such as burning occurs.

The position shown by the dotted line in FIG. 3 is the normal standby position, and the position shown by the solid line is the position where the illumination light is blocked and does not hit the film original.

Reference numeral 87 is a spring provided for urging and positioning the swing lamp base 82 in a predetermined direction when no external force is applied.

FIG. 4 is a view of the transparent original reading device as viewed from the left side.

Reference numeral 91 is a support plate for fixing the operating portion to the main body of the electrical equipment box portion, 92 is an operating portion box portion provided on the rear side of the operating portion, 9
Reference numeral 3 denotes an LCD driver board that drives the display portion of the LCD of the operation unit.

Reference numerals 94 and 96 are for correcting an error in the focal length of the imaging lens 39, and are provided for adjusting the distance between the transparent original and the CCD. Reference numeral 96 is an upper rail adjusting plate provided to adjust the position of the upper rail (CCD rail) 95 for guiding the sub-scanning of the CCD, and 94 is also the CC
D is a lower rail adjusting plate provided for adjusting the position of the CCD lower rail for sub-scanning.

The adjusting plates 94 and 96, the CCD rails 55 and 95, the imaging lens 39, and the magazine 2 are all mounted on the frame of one optical unit 4.
The optical system can be adjusted only by the optical unit 4. As a result, a highly accurate optical system can be configured as an independent unit regardless of the accuracy of the electrical equipment box part, so that the assembling property is also improved.

That is, by constructing the rigidity of the optical unit 4 higher than the rigidity of the electrical equipment box, the high-precision portion can be concentrated only in the optical unit, so that other illumination units 1 and CCD sub-scanning drive units and the like are not used. The unit can be made with relatively loose accuracy, and it is not necessary to make the entire unit with a high-precision frame as in the past, so the effect of cost reduction becomes very large.

The same effect can be obtained by holding the optical unit 4 at three points with respect to the electrical equipment box and making the remaining mounting portion flexible in the direction perpendicular to the mounting surface. it can. At this time, there is no need to consider the difference in rigidity.
It is a general method to use an elastic member such as a leaf spring or rubber as the attaching means of the flexible structure.

Reference numeral 97 denotes a handle 38 for releasing the magazine 2.
Is a handle return spring for biasing the lever in a predetermined direction.

Reference numeral 98 is an electrical equipment base ground screw for grounding the electrical equipment base 7 forming the bottom of the electrical equipment box to multiple points. As described later with reference to FIG. 5, the ground screw 98 is located at a position retracted from the outer wall by a distance indicated by 108, and thus is in a position where it cannot be easily seen from the operating position, which is very preferable in appearance. .

Further, since the screws are fixed at multiple points in this way, it is possible to considerably increase the rigidity of the electrical equipment box portion.
In addition, the material of the screw is made of brass or the like having a good conductivity to ensure the electrical contact.

Reference numeral 99 represents a negative film window of the negative film carrier 3, and H2 represents a distance from the end of the carrier 3 to the central portion of the third frame. Further, H0 indicates the distance from the surface 110 on which the entire transparent original reading device is placed to the center of the original, and in this embodiment, H0 ≧ H2.

This is because when the carrier 3 is used in the vertical direction, if up to 3 frames, which is half of the 6 frames of a normal negative film, can be inserted, the other half can be inserted from the opposite side of the carrier 3 for use. . The image copied at this time is also turned over by 180 °, but the magazine 2 is equipped with a sensor that determines the insertion direction of the carrier 3, and when the carrier 3 is inserted from the opposite side, a signal is automatically transmitted 180 °. Turn over.

That is, the CCD 48 also operates so that the sub-scanning direction is also automatically flipped. At this time, the image information in the main scanning direction of the CCD 48 is also inverted by using the line offset correction memory. This prevents the image from being turned over even when the carrier 3 is inserted from the opposite side.

As will be described later, in this embodiment, a selecting means is provided so that the user can selectively turn over the image.

Conventionally, even when the carrier 3 was used vertically, it was necessary to have a height such that all the tops of the carrier could be accommodated in one direction, so that the height of the entire apparatus became high and it was difficult to make it compact. However, this automatic reversal mode made it possible to keep the height of the device significantly low.
In addition, if you use a dedicated object for the mounting table and provide holes for the carrier 3 to enter when the carrier 3 is inserted vertically, it is possible to use the carrier 3 in one direction as in the past. Becomes The mounted film carrier 168 for fixing the film stored in the mount will be described later with reference to FIG.

FIG. 5 is a view of the transparent original reading device as viewed from the rear side.

Reference numeral 105 denotes an outer cover of the entire transparent original reading apparatus formed of a mold or the like which is an insulating material. By using an insulating material, it is possible to omit the grounding, so that it can be easily attached.

Reference numeral 106 is an image signal output connector mounted on the electric board 12. Reference numeral 107 denotes a power supply inlet to which an AC power supply is connected. Reference numeral 108 denotes the above-described screw concealed step. By making the shape of the electrical equipment box part like this, the electrical equipment base 7 can be drawn out and the screw 98 for grounding can be seen from the normal use state position. I have succeeded in losing it. As a result, it is possible to omit the exterior cover for hiding the screws and reduce the cost of the exterior.

Reference numeral 109 is a screw for grounding the electric equipment base 7 and the frame of the electric equipment box portion. Since it is difficult to see the rear side in a normal use state, the screw is used in a bare state, but it may be hidden by providing a step similar to the side screw 98.

The side frame of the electrical equipment box portion and the electrical equipment top plate 111 are also assembled with screws in the embodiment, but if a high rigidity can be maintained even when the electrical equipment base 7 is removed as a welding structure, grounding is also possible. Surely better.

FIG. 6 is a sectional view of the transparent original reading device as viewed from the right side.

Reference numeral 116 is the center of rotation of the mirror 44 for switching the optical path of the optical viewer 8 and is attached to the conductive mirror holder 122. When the mirror 44 is at the position indicated by the dotted line in FIG. 6, that is, when the light is directed to the CCD 48 side, the top plate of the optical unit 4 and the mirror holder 122 jointly close the hole for the optical viewer 8 and the electromagnetic waves emitted by the CCD 48. Prevents noise from leaking. That is, since the mirror 44 and the CCD 48 operate exclusively, this is possible.

Reference numeral 117 is an analog cable made of a flexible board for transmitting an analog signal from the CCD 48 to the electric board 12. Reference numeral 119 is a bottom plate of the optical unit 4. Reference numeral 120 denotes a slider that sandwiches the CCD rails 55 and 95 from the horizontal direction. The slider 120 is fixed to the CCD scanning base 53, and the rails 55 and 95 are sandwiched with a spring property on the side opposite to the reference side. .

The parts that vertically support the CCD scanning base 53 are ball bearings 54 and 46. This is because, when the weight in the vertical direction is received, the load is larger than that in the positioning in the horizontal direction, and thus the load for the sub-scanning becomes large when the slip is used.

Reference numeral 121 denotes a substrate grounding member, which electrically contacts the CCD driver substrate 47 with the CCD scanning base 53. Further, the CCD scanning base 53 is in electrical contact with the CCD rails 55, 95 through the ball bearing press-fitting shafts 157, 158 and through the ball bearings 46, 54. Therefore, ball bearings 46,5
4 is a conductive ball bearing or a ball bearing containing conductive grease.

The CCD rails 55 and 95 are connected to the optical unit 4, and are eventually grounded to the entire apparatus.

Signal grounding of the CCD analog signal is performed by the analog cable 117.

123 is fixed to the CCD scanning base 53,
This is a scanning member fixing tool whose end is fixed to the CCD sub-scanning drive belt 57. 124 is the CCD sub-scanning drive belt 5
7 is a belt pressing member that fixes the scanning member 7 and the scanning member fixing member 123 by sandwiching them in the belt 57.

In FIG. 6, an infrared cut filter 51 is provided.
Is inclined from the vertical plane in the direction shown in the figure. This is to prevent dust and dirt from accumulating on the outer surface of the infrared cut filter 51. In addition, infrared cut filter 5
The CCD cover 52 protects the inner surface of 1 and the glass of the CCD 48 itself from dust and dirt.

FIG. 7 is a top view of the sub-scanning drive unit.

Reference numeral 131 is a belt tension spring for applying tension to the CCD sub-scanning drive belt 57, 132 is a positioning hole for mounting, and 133 is a ball bearing.
This is because the idler pulley 45 receives a force twice as much as the tension of the belt, and when the rotational load is large, the tension of the belt changes greatly depending on the rotation direction of the motor 61, and the CCD 48 moves in the sub scanning direction. However, it becomes unstable because it differs depending on the going and returning of the sub-scan. Therefore CCD4
In order to drive 8 in a reciprocating manner, the rotational load of the idler pulley 45 must be made as small as possible. Therefore, ball bearings are used in this part even though the cost is high.

Reference numeral 134 denotes a tensioner shaft, which is a tensioner plate 1
It is fixed at 37. The tensioner plate 137 is provided with guide shafts 136, 13 fixed to the sub-scanning drive unit base 64.
Guided at 9. 135 and 138 are guide holes at that time, and the guide shaft 13 is provided at the end of the hole in consideration of the assembling workability.
A part larger than 6,139 is provided so that it can be disassembled here. The belt tension spring 131 pulls this tensioner plate.

Reference numeral 140 denotes a sensor fixing plate which fixes the sensors 49, 50 and 56 required for the sub scanning of the CCD 48 to the sub scanning drive unit base 64.

Reference numeral 141 denotes an idler shaft fixing plate, which is a reinforcing plate for fixing the idler shaft 142 so as not to tilt due to the tension of the belt. 143 and 144 are escape holes for mounting, and no positioning is performed in this portion.

Reference numeral 145 is a positioning reference when fixing the sub-scanning drive unit to the main body box portion, and the optical path length, that is, the positions of the rails 55 and 95 are adjusted in accordance with the variation in the focal length of the lens 39 of the optical unit 4. The lower rail adjusting plate, the position of which is determined when adjusted, and the lower rail adjusting plate abutting portion 146, which is a part of the lower rail adjusting plate, are abutted and positioned. This determines the relative position of the optical unit 4 and the CCD sub-scanning unit.

FIG. 8 is a rear view (side view of FIG. 7) of the CCD sub-scanning drive unit.

Reference numeral 147 denotes a magnet damper for reducing the rotational vibration of the CCD sub-scanning drive motor 61, which is coupled to the motor shaft 148 with a predetermined torque by a magnetic force. As described above, the motor mount 63 is made of a damping steel plate to prevent resonance and make it difficult for the vibration of the motor to be transmitted to the CCD from other than the belt.

The belts 57 and 60 are TN belts manufactured by Bando Kagaku KK. This is 3 with a vertical angle of 70 °
The backlash is almost zero by using a belt tooth shape having a rectangular cross-sectional shape.

As a result of the experiment, when the forward and reverse rotations are transmitted without backlash as in the embodiment of the present invention, and a precise movement is required, a conventional belt having a general tooth profile is used. The vibration by the belt was extremely small and effective.

FIG. 9 is a view of the CCD unit viewed from the front side.

As shown in FIG. 9, the CCD sub-scanning drive belt 57 is connected at approximately the center of the CCD unit.

Numerals 159 and 160 are holes for fixing the analog cable retainer 155 for retaining the analog cable 117 as will be described later with reference to FIG. .

FIG. 10 is a view of the CCD unit as viewed from above.

In FIG. 10, reference numeral 155 denotes an analog cable retainer, which fixes the analog cable 117 to the CCD scanning base 53. 156 is a CCD socket, which is a CCD
Reference numeral 48 is attached so as to sandwich the CCD scanning base 53 and is pressed against the CCD scanning base. As a result, the CCD 48 is positioned and at the same time heat generated from the CCD 48 is released through the CCD scanning base 53.

For this purpose, the CCD scanning base 53 is black to facilitate heat dissipation. This also has the effect of preventing diffuse reflection. The ball bearing press-fitting shafts 157 and 158 are fixed to the CCD scanning base 53, and the ball bearings 46 and 54 are press-fitted into the shafts. The press-fit shaft is a straight shaft without steps, and centerless grinding is performed to control the shaft diameter with high accuracy and bring out the performance of the ball bearing.

FIG. 11 is a view of the CCD unit as viewed from the right side.

Reference numeral 161 denotes an analog cable socket provided on the CCD driver board 47. The infrared cut filter 51 is fixed to the CCD unit as shown in FIG. 11, and is tilted so that dust and dirt do not adhere as described above. Then, due to this inclination, the optical path is changed to CCD4.
8 shifts in the main scanning direction, but the shift amount can be calculated from the refractive index of the filter, the thickness, and the tilt amount, so the CCD 48 is lifted in the main scanning direction by a distance that corrects it.

FIG. 12 is a perspective view of the magazine unit.

Reference numeral 166 is a positioning notch for positioning the magazine 2 in the optical unit, where the magazine is positioned. Reference numeral 167 is a magazine fixing portion for pressing the positioning notch 166 of the magazine 2 against a positioning pin (not shown) provided on the optical unit side, and is a magazine fixing link 73 and a magazine fixing spring 77 shown in FIG.
This part is pressed down and fixed with.

FIG. 13 shows a carrier of a film, such as a positive film, which is contained in a mount.

In FIG. 4, the size of the negative film with 6 sheets is described when it is used in the vertical direction. However, the same applies to a film carrier mounted in a mount such as a positive film. To describe.

In FIG. 13, H1 represents the distance from the end of the mountable film carrier 168 to the center of the center window, and H0 ≧ H1 should be satisfied with respect to H0 shown in FIG. Then, the height of the main body can be made lower by (H1'-H1) than the conventionally required H1 '. This made it possible to reduce the height of the device.

FIG. 14 is a carrier for a continuous film of negative film.

Also in this case, as in FIG. 13, (H2'-H
It is possible to reduce the height of the body only by 2). However,
In this embodiment, since H1> H2, the actual value that can lower the body height is (H1'-H1).

FIG. 15 is a perspective view showing a state where the carrier is inserted in the magazine unit.

FIG. 16 is a perspective view of the optical unit 4.

Reference numeral 179 denotes an image forming surface that connects the images of the transparent original, and this image forming surface is a common tangent line of the two rails 55 and 95. Further, this surface is made to coincide with the light receiving surface of the CCD 48 to perform sub scanning. This allows the CCD 48
Even if is tilted in the main scanning direction about the axis of the rail 55 or an axis parallel to the rail 55, the pixel shift in the main scanning direction can be minimized.

FIG. 17 is a perspective view of the magazine.

Reference numeral 169 is a carrier pressing spring, 170 is a click spring for positioning the frames of the carriers 3, 168 and the magazine, and 172 is a carrier pressing spring.

Reference numeral 171 denotes the state of the carrier, that is, whether the carrier 3,168 is used by inserting it horizontally or vertically, by using the negative film carrier 3 or the mountable film carrier 168.
It is a carrier state detection sensor that detects whether a film is included, whether it is a positive film or a negative film, and the like.

The amount of light of the illumination lamp 28 is changed and the filters 26 and 32 are switched depending on the detection states of these sensors.

FIG. 18 is a block schematic diagram of an electric component.

188 is an AF which has not been illustrated so far.
It is a home position sensor for a motor. This determines the home position of the lens drive motor 41 during one rotation. Since a stepping motor is used as the motor 41, it is possible to reproduce an arbitrary position during one rotation.

Reference numeral 189 denotes an autochanger, which is not shown in the embodiment, but is a mount-equipped film automatic changing unit for automatically performing reading while automatically changing the film stored in the mount.
In the embodiment, the magazine 2 can be replaced and used exclusively.

Reference numeral 190 denotes a safety thermoswitch provided near the illumination lamp 28, which is provided between the illumination lamp 28 and the fan 9 and is used when the fan 9 fails and the temperature rises too much. It is designed to cut the power supply to.

Reference numeral 191 is A connected to the inlet 107.
C power cord, 192 is an operation button 67 of the operation unit 65,
A switch substrate for 68, 69, 70. Reference numeral 193 schematically represents the optical axis. The description of the configuration is completed above, and the operation of the above configuration will be described below. (Explanation of Operation) In this embodiment, since the operation unit 65 in which the LCD and the touch panel are integrally attached is provided separately from the optical viewer 8, when the transparent original is a negative film, LC is used.
It is possible to display the negative and positive inversion on D66.

This is disadvantageous in that the user is annoyed because the monitor image cannot be seen until the prescan is completed only with the electronic viewer, and the image can be immediately monitored only with the optical viewer 8. However, the negative image cannot be normally displayed, and the illumination lamp 28 must be kept on while the negative image is displayed on the monitor, which is a drawback that the film original is easily damaged.

By providing both of them, the optical viewer 8 can immediately see the monitor of the transparent original image such as film, and the monitor image for advanced final image check such as negative / positive reversal, trimming and image rotation can be displayed electronically. The viewer can display it.

Further, since the image information read by the pre-scan is retained in the monitor image memory, the illumination lamp 28 can be turned off by using an electronic viewer, which also has an advantage of not damaging the film original. is there.

However, since both monitors cannot be used at the same time, this embodiment is provided with a means for selectively switching which monitor the user preferentially uses.

That is, the monitor image is displayed on the electronic viewer from the beginning after pre-scanning of the CCD 48. Alternatively, the user can select whether to first display a monitor image on the optical viewer 8 and then switch to the electronic viewer by a user operation.

The LCD display unit 66 can display not only the normal display trimming but also the paper size and the layout such as image rotation and enlargement / reduction of the image after copying in cooperation with the copying apparatus. As a result, it is possible to make the device easier to use than the conventional device using only an optical monitor.

These are matters that cannot be realized by the optical viewer, and the operability is remarkably improved.

For example, in the apparatus of the embodiment, the LCD display section mutually communicates image information with the copying apparatus main body, and it is also possible to display the image read by the copying apparatus main body. Has become. As a result, it becomes possible to confirm the image after trimming with a digitizer or the like provided on the copying apparatus main body side without actually performing the copying operation.

At this time, the image on the copy sheet and the corresponding trimmed image are displayed on the LCD 66.

In this embodiment, since the carrier 3 can be set in the vertical and horizontal directions, the optical viewer 8 has a square shape. However, since the original is not square, the useless area becomes large if a square monitor screen is prepared in order to be able to display portrait and landscape originals.

In order to solve this, the operation unit 65 including the LCD 66 with a touch panel, which is the electronic viewer of this embodiment, can display an image rotated by 90 ° by the user's selection. . This way,
By aligning the direction of the monitor display image with the direction suitable for the size of the LCD 66, it is possible to effectively use the screen and display a large image.

Further, in this embodiment, the image half rotation selection means is provided so that the user can rotate the monitor image by 180 ° in case the user mistakenly sets the original upside down. At this time, the sub-scanning direction and the main-scanning direction of the CCD 48 are also inverted so that the read image information is also as on the monitor screen. This eliminates the need to replace the carrier when a mistake is made as in the past.

Further, color calibration of the monitor screen and the printer device can be performed to display the tint of the image after the copying is performed. However, the electronic monitor is a color-reduction composite, and copying is the opposite, so they do not exactly match, but the advantage that you can get almost the same image before copying is very large, which is also an advantage unique to electronic viewers.

In the present embodiment, since the LCD display section 66 has a small screen size, a monitor terminal is prepared so that a larger CRT monitor or the like can be connected. This makes it possible to easily construct a system with a large monitor when used in combination with a full-color copying machine. (Autofocus operation) To describe the basic operation,
First, it is detected that the transparent original is set, that is, that the carrier 3 is inserted into the magazine 2, and the carrier 3 is detected.
When it is detected that each frame, that is, the film, has reached a predetermined projection position in the magazine 2, a predetermined time which can be arbitrarily set by the user by the timer setting means is about 0.3 to 2 so that the user is not surprised. After a second, monitor image reading (hereinafter referred to as prescan) is started, and at the same time, the focus position of the autofocus lens is measured over the entire movable range of the lens 39.

As a result, the prescan is performed at the same time as the autofocus, so that the monitor image is displayed as a blurry image at this time, but the display density of the monitor is extremely coarse, so that there is no practical problem. It is a level.

The exposure correction value measurement is performed by this pre-scan return scanning (back scan), and after the exposure correction value is measured, the lens 39 is moved to the in-focus position.

This is because the exposure correction value is measured exclusively with the operation of the autofocus so that it is performed in a state where the focus is out of focus, and the image is optically averaged so that the content of the image of the transparent original is as much as possible. This is because the exposure is corrected without being affected by.

That is, during the pre-scan, at the same time when the monitor image is read, the cam 40 is rotated by the motor 41,
The lens 39 is moved to measure the frequency component of the image. In the return scan (back scan), the exposure correction value is measured with the focus intentionally removed. After that, the lens 39 is moved to the measured focal position.

As another method, the lens is first moved to the position where it is most unlikely to be in focus, the exposure correction value is measured (AE) at the same time as the prescan, and the autofocus operation (focus) is performed by the return scan. The position may be measured).

However, if the image is not displayed on the LCD monitor 66 quickly, the usability becomes poor. In either case, it is common to read the monitor image at the same time by the first scanning.

If the carrier 3 is moved to another frame during the timer counting from the time when the carrier 3 reaches the predetermined projection position to the time when the prescan is started, the prescan is naturally stopped, but after the prescan is already started. Even if the user moves the carrier 3, the prescan is stopped and the CCD 4
Move 8 to the home position and wait.

FIG. 19 shows a schematic operation flowchart.

Next, when the measurement of the exposure correction value is completed, the focus is adjusted. That is, the cam 40 is rotated to the “lens position where the image frequency is highest” = “the rotation angle of the cam where the image frequency is highest” by the second rotation of the cam 40 based on the autofocus measurement data. .

The lens position at this time is the lens drive cam 40.
And the position of the lens drive cam 40 is determined by the number of steps of the motor 41 from the rotational position of the home position of the lens drive motor 41.

In the embodiment, the lens driving cam 40 is fixed directly to the motor shaft, and the lens position is determined by the second rotation after returning to the original home position position by one rotation of the motor shaft. . By doing so, the lens position can be accurately positioned regardless of the cam curve accuracy of the cam.

Next, the device used in this embodiment for speeding up the autofocus operation will be described.

The transparent original may be fixed on various mounts such as reversal photographic film.

If this is sandwiched between the carriers 3 and fixed to the magazine 2, the film surface moves corresponding to the thickness of the mount, which eventually causes a phenomenon that the focus is not achieved.
To solve this, an auto focus mechanism is needed.

However, the amount of deviation of the position of the film surface due to this mount does not greatly change each time the type of mount is determined. Therefore, the focus position is measured over the entire lens stroke in the first original of carrier 3,168. From the second frame, the measurement is performed only in the vicinity of the first in-focus position, and the measurement is omitted in other portions, and the lens 39 is moved at high speed.

As a result, from the second time on, the autofocus operation becomes faster, the time for which the user is kept waiting can be reduced, and the usability is improved.

Although not described in the embodiment, as an application of this method, a range for autofocusing is limited by providing a means for detecting the position of the film surface and a means for detecting the thickness of the mount. Is possible,
The same effect as the above case can be expected.

As an example thereof, the case of a negative film will be described. In the case of a negative film, the film is often sandwiched between the carriers 3 and used. If it is in the mount, it can not be mounted on the carrier 3 for negative film, so when the carrier 3 is used, the film is not mounted and the position is automatically narrow. Limited in scope. Based on this, a sensor for detecting that the negative film carrier 3 is being used is provided, and when the carrier 3 is being used, the position of the film should be predicted from the beginning to perform the autofocus operation. I understand.

On the other hand, when the carrier is the mountable film carrier 168, it can be seen that the position of the film surface changes depending on the thickness of the mount. Therefore, the autofocus operation must be performed in a wide range. For the above reasons, the sensor for discriminating the type of carrier is attached to the magazine 2 in the embodiment.

In the present embodiment, the monitor image is read in the first pre-scanning, the original area is measured and the auto focus (AF) is performed, and the exposure correction value (AE) is measured in the returning portion (back scan). However, when performing a more accurate autofocus, it is better to stop the image for focusing, that is, the CCD 48 should be stopped at a predetermined position. The user can select normal autofocus, which moves the lens while reading (center part of the).

By using this selecting means, the user selects the high-precision autofocus mode so that a higher-precision autofocus operation is additionally inserted before the actual image is read after the copy button is pressed. Has become.

Here, one method for further increasing the speed of the autofocus operation of this embodiment will be described.

By accurately forming the cam 40 in a symmetrical shape, the cam surface is divided at the two inflection points of the cam 40, measured on one cam surface, and the focal position on the other cam surface is calculated. It is also possible to move the lens position to the in-focus position by rotating the cam to that position.

In this case, unlike the present embodiment, the cost of the cam is somewhat high because it depends entirely on the machining accuracy of the cam surface, but since the rotation angle of the cam 40 is half, the lens can be moved at high speed. Therefore, the autofocus operation can be completed at high speed.

The same applies to the case where a cam having more cam inflection points is made and the cam surface is divided into three or more by one rotation of the cam. That is, if the relationship between the rotation angle of one cam surface and the rotation angle of the next cam surface can be calculated completely, the autofocus operation can be performed at high speed using two continuous cam surfaces.

Further, if it is possible to accurately correspond the rotation angle of the cam and the position of the lens, it is not always necessary to have a symmetrical shape, and a complicated asymmetrical cam may be used.

If it is uncertain to rely entirely on the accuracy of the cam shape, the relationship between the cam rotation angle and the lens movement position is measured and stored in the RAM area of the electric substrate 12, and the data is referred to. By calculating the rotation angle of the cam, the autofocus operation with higher accuracy can be performed without being affected by the production accuracy of the cam. (Regarding Monitor Screen Control Related to Auto Focus) In this embodiment, when the prescan for displaying on the monitor screen of the LCD 66 is performed simultaneously with the exposure correction value measurement, the lens position is fixed at a position where a predetermined image is blurred. I am doing it. After that, when the lens is moved to the focal position, the magnification of the monitor image and the actual reading magnification will change slightly.

The lens position is constantly changing when interlocking with the autofocus operation. As a result, the monitor image actually becomes an image in which the magnification changes periodically.
In order to prevent this, the magnification displayed on the monitor screen is back-calculated according to the position of the lens during the autofocus operation to correct the change. This makes the magnification constant over the entire monitor screen. However, if the lens is moved to the focus position after this, the actual reading magnification and the display magnification of the monitor screen are slightly different, as in the case described above, and there is a drawback that the operations such as trimming do not exactly match. To do.

In order to avoid this inconvenience, when an operation that requires strict processing of the read magnification such as trimming is performed, the monitor image is read again with the lens in focus. ing. The characteristic operation performed in this embodiment will be described below. (The CCD accumulation time is made variable by the exposure correction value.) In the present embodiment, the CCD 48 is changed by changing the light amount of the illumination lamp according to the original in order to read each original optimally.
The amount of light that reaches is kept constant.

However, when the original is so transparent that the amount of light from the lamp is reduced and exposure correction cannot be performed, the accumulation time of the CCD 48 is changed to be short. (During reduction, the image information is not simply thinned out but averaged by the image information in the neighborhood process.) In the past, the information was simply thinned out and compressed. By doing so, the image quality at the time of reduction is improved. (A device for removing dust and dirt on the film surface is attached before reading.) When reading a transparent original, the pixels of the image are often equivalent to dust and dirt. To solve this,
A device for removing dust from the film surface with a brush, suctioned air, a cleaning roller with an adhesive material, or the like may be provided separately from the reading device or may be incorporated therein. Especially 35
It was found that when a document having a large enlargement ratio such as a mm film is read, the image of dust has a great influence, and the effect of improving image quality by removing dust is very large. (Enlargement / reduction is performed by using the CCD sub-scanning speed change and image processing together.) From the basic magnification, the CCD sub-scanning speed is slowed down in the enlargement direction to optically enlarge and read the image. At the time of reduction, the image information is electrically averaged and compressed, and the CCD sub-scanning speed remains at the basic magnification. As a result, the drive frequency range of the CCD sub-scanning drive motor 61 can be narrowed, and the risk of image blur due to resonance between the drive frequency of the motor 61 and the surrounding mechanical parts can be reduced.

Since the CCD 48 does not have to move at a high speed, the approach distance for accelerating the motor 61 from the stopped state to the steady speed can be shortened. As a result, the space for sub-scanning is also small, and there is an effect that the device can be made smaller. (Cooling of the device) The air flow for cooling the device is sucked in from the rear of the electrical equipment box part, rises from the bottom part of the lighting part, passes through the lens of the lighting part, and is exhausted rearward. As a result, it is possible to cool the heat generating portion of the entire device with one fan 9. This is also one of the effects obtained by making the electrical component part a box structure. (Regarding skip operation) If there is no film, it is skipped and a message is displayed if it does not exist.

It can be predicted from the output of the CCD 48 that the original does not exist or the image does not exist when the monitor image reading is started. By utilizing this, if the film does not exist, the reading operation of the monitor image is stopped and a message is issued. As a result, it is possible to prevent erroneous operations by the user and prevent waste of time. (Regarding Storage of Carrier) The carriers 3 and 168 are provided with hook holes 173 and 174 for storing, and when not in use, they can be hooked on a pin or the like to be stored.

Further, by denting a part of the outer cover in the form of a carrier as the place and storing an unused carrier in that part, loss is prevented and the appearance is also preferable. (Structure of autochanger slidable in the optical axis direction) The autochanger 189 shown in FIG.
35m with mount made by Eastman Kodak Co., Ltd.
This is a device for automatically exchanging and reading the film using a curl cell for organizing the film.

In this embodiment, the magazine 2 is mounted exclusively for use. It is not preferable to use these two kinds of film fixing devices in terms of cost.

As a solution to this problem, a method in which the carriers 3 and 168 can be directly attached to the auto changer 189 can be considered.

In order to realize this, it is necessary that the position of the film does not change (shift) in the optical axis direction even when the carrier 3,168 is used. Therefore, the autochanger 189 is configured to be movable in the optical axis direction, and when the carriers 3,168 are used, the autochanger 189 is displaced in the optical axis direction, and the "insertion port of the carrier 3,168" provided in the autochanger 189 is removed. The position is moved to the image forming position.

However, in this case, the film of the carrier 3,168 is removed or the carrier itself is removed, and then the autochanger 189 is used again. (Regarding Document Edge Detection) In this embodiment, in order to shorten the reading time, the document edge is detected when the copy operation is actually started, and only the detected document edge is detected from the second sub-scan. Sub-scanning is being performed. At this time, CCD
The CCD 48 starts to move from the standby position with uniform acceleration, and the edge of the document is detected as it is to start reading an image. At the same time, the position of the document edge is stored in the RAM.

However, conventionally, the reading speed (CC
If the sub-scanning speed of D48 is fast, the position of the document edge cannot be accurately read. Therefore, even when the CCD 48 moves from the standby position to the document edge, the CCD 48 moves while adjusting the speed at the time of actual image reading. .

However, it is possible to move at a higher speed from the standby position to the actual edge of the original, and it is possible to reduce the wasted time by decelerating to the image reading speed immediately before reaching the edge of the original. Is.

This can be solved if the size of the image of the transparent original in the sub-scanning direction can be predicted to some extent. That is, in order to predict the image size of the film, the magazine 2 is provided with a sensor for detecting whether the insertion direction of the carriers 3, 168 is the vertical direction or the horizontal direction, and the size of the document in the sub-scanning direction is predicted to some extent. .

As a result, the CCD can be used up to near the edge of the document.
If 48 is moved at full speed to approach the predicted document edge position and the speed is reduced to the image reading speed immediately before the document edge is considered to be reached, the document edge detection can be performed faster than before. It can relieve user's annoyance. In particular, when the carrier 3,168 is inserted in the vertical direction, the effect is large and effective. This is because the required search area in the sub-scanning direction becomes about 1 / 1.5 when the document is oriented in the vertical direction. (Memorize copy mode for each frame in carrier 3,168)
As shown in FIG. 15 and the like, with respect to the film original stored in the carriers 3,168 of this embodiment, it is extremely difficult to exchange the film originals unless the carriers 3,168 are removed from the magazine 2.

Utilizing this, unless the carrier 3,168 is taken out from the magazine 2, it is assumed that each frame and the original have a one-to-one correspondence, and in this embodiment, trimming or the like is performed for each frame in the carrier 3,168. The reading mode information is stored so that the previously set mode and the monitor image are recalled as they are unless the carrier 3,168 is removed from the magazine 2.

In this way, when it is desired to read again, it is possible to work more speedily from the second time. (Return to deceleration distance when starting / stopping) In this embodiment, it is possible to transfer the read image information to the computer using the SCSI interface. However, at this time, the speed of the information that can be transmitted with respect to the read image information becomes slow, so the image must be read in the start / stop mode.
At this time, it is desirable that the sub-scanning speed of the CCD instantly becomes zero and that the original image reading speed become instantly when the CCD is started up.

However, in reality, such a situation cannot occur. When stopping, the vehicle overruns, and when accelerating, an approach distance is required. Even if it does not reach that point, the CCD is vibrated at the time of start / stop and the image is likely to be disturbed.

In order to prevent this, in this embodiment, the reading stop position is returned in the opposite direction by the "overrun distance + the running distance at the time of acceleration", and then the reading is restarted by accelerating the running distance again. As a result, the reading can be restarted exactly at the position where the reading was stopped, so that unnecessary time can be saved. (Other Embodiments) In the embodiment of the present invention, an example in which a line sensor is provided as a document reading element, image information is read by mechanical sub-scanning, and the information is displayed on an electronic viewer according to the information, is described. In addition, an area CCD that is a dedicated area-type device for obtaining display image information of an electronic viewer
By providing such area sensors, it becomes possible to obtain monitor image information almost instantaneously without performing sub-scanning.

That is, an illumination unit that is an illumination system that illuminates a transparent original such as a film original, a magazine that is a holding unit that holds the transparent original, a CCD that is an image reading unit that reads an image of the original, and a CCD. In a transparent original reading device equipped with an imaging lens for forming an image,
A means for selectively deflecting the light going to D, an image information reading area sensor dedicated to a monitor which is an area type element for forming an image of the deflected light, an electronic viewer for displaying the image information of the area sensor, and the outside. By providing a transparent original reading device characterized by having a line sensor for performing sub-scanning for reading image information to be sent out, it is possible to obtain the same effect as that described in the embodiment. .

Although not described in detail in this embodiment, while the image read by the area sensor is being displayed, sub-scanning is performed by the line sensor to read the image, and the image read by the area sensor after the reading is completed. If replaced, the image information obtained by the sensor that reads the image information that is actually sent will be displayed, and more accurate image information can be displayed on the electronic viewer.

Further, in order to make this operation smooth, an image forming lens dedicated to the area sensor may be provided in order to enable simultaneous reading start by the area sensor and the line sensor. This is shown in FIG.

Although not described above, a dedicated lens for forming an image on the optical screen viewer may be provided in this embodiment.

As a result, the display magnification on the screen viewer can be easily changed.

[0211]

Since the present invention has the above-described structure and operation and is provided with the screen viewer and the electronic viewer, a quick monitor display can be performed by the screen viewer and an original image can be confirmed instantly. At the same time, detailed reading by an electronic viewer is possible, highly accurate information can be obtained, and user convenience is improved.

By using the electronic viewer, it is not necessary to continue illuminating the transparent original while the monitor image is displayed, and deterioration such as discoloration of the transparent original can be greatly suppressed, and at the same time, power consumption can be reduced. .

On the other hand, after confirming what the transparent original is, the display is switched to the electronic viewer to enable quick image confirmation and normal display of a negative image such as a negative film.

[Brief description of drawings]

FIG. 1 is a perspective view of a transparent original reading device of the present invention.

FIG. 2 is a plan view of a transparent original reading device of the present invention.

FIG. 3 is a front view of a transparent original reading device of the present invention.

FIG. 4 is a left side view of the transparent original reading device of the present invention.

FIG. 5 is a rear view of the transparent original reading device of the present invention.

FIG. 6 is a sectional view of the vicinity of an optical system when the transparent original reading device of the present invention is viewed from the right side.

FIG. 7 is a plan view of a CCD sub-scanning drive unit.

FIG. 8 is a rear view (side view of FIG. 7) of the CCD sub-scanning drive unit.

FIG. 9 is a front view of a CCD unit.

FIG. 10 is a plan view of a CCD unit.

FIG. 11 is a right side view of the CCD unit.

FIG. 12 is a perspective view of a magazine unit.

FIG. 13 is a perspective view of a film carrier contained in a mount such as a positive film.

FIG. 14 is a perspective view of a carrier for a continuous film of negative film.

FIG. 15 is a perspective view showing a state where a carrier is inserted in the magazine unit.

FIG. 16 is a perspective view of an optical unit.

FIG. 17 is a perspective view of a magazine.

FIG. 18 is a wiring diagram of electric components.

FIG. 19 is a basic flowchart of this embodiment.

FIG. 20 is a perspective view of another embodiment of the unit connecting method of the present invention.

FIG. 21 is a schematic view of still another embodiment of the unit connecting method according to the present invention.

FIG. 22 is a layout view of an image reading means according to another embodiment of the present invention.

[Explanation of symbols]

 1 Lighting Unit (Illumination System) 2 Magazine (Holding Means) 4 Optical Unit 8 Optical Viewer (Screen Viewer) 37 Mirror (Polarizing Means) 44 Optical Path Switching Mirror (Selecting Means) 48 CCD (Image Reading Means) 64 Sub-scanning Drive Unit Base 66 LCD with touch panel (electronic viewer)

Claims (4)

[Claims] 1. An illumination system for illuminating a transparent original, a holding means for holding the transparent original, an image reading means for reading an image of the transparent original, and an image forming means for forming an image on the image reading means. In a transparent original reading device, a screen viewer having means for selectively deflecting light going to the image reading means and a screen member for forming an image of the deflected light, and an electronic system for displaying image information read by the image reading means A transparent original reading device provided with a viewer. 2. The transparent original reading device according to claim 1, wherein the electronic viewer is configured integrally with an operation unit and is attachable to and detachable from a main body of the transparent original reading device. 3. The transparent original reading device according to claim 1 or 2, further comprising a selection means capable of selecting a priority order when the electronic viewer and the screen viewer are used. 4. An illumination system for illuminating a transparent original, holding means for holding the transparent original, image reading means for reading an image of the transparent original, and image forming means for forming an image on the image reading means. In the transparent original reading device, an area type element that does not perform sub-scanning is provided separately from the image reading means that performs sub-scanning, and means for selectively deflecting light going to the image reading means, and the deflected light And a means for displaying the information on an electronic viewer by forming an image on an area-type element, and a transparent original reading device.