JP2947139B2 - Information retrieval device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording medium holding carrier for holding a long information recording medium in a transportable manner, such as a rolled microfilm carrier mounted on a microfilm reader or a reader printer.
And moving means for moving the carrier in the width direction of the information recording medium, wherein desired information in the information recording medium is provided.
The present invention relates to an information search device for searching for information.

[0002]

2. Description of the Related Art A microfilm carrier as an information retrieval device installed in a microfilm reader, a reader printer, or the like (hereinafter referred to as a reader or the like main body) is provided with a roll as an attached long information recording medium. Forward the microfilm between the winding unit and the rewinding unit via the projection position (film illumination unit).
Address information of a desired image frame portion (image information portion, micro image portion) to be searched, which has film transport means for reverse transport, and which is previously input to the control section by the input means;
Mark detection information input to the control unit from mark detection means for detecting a search mark previously attached to each image frame portion sequentially printed along the length of the film in the process of forward or reverse transport of the film. The film transport means is automatically driven and stopped so that the desired image frame portion is searched for the projection position and stopped at the stop position (automatic search operation mode). In addition, a dial for manually controlling the film transport means is provided, and the dial operation allows the film to be transported forward or backward so that a desired image frame portion can be searched at the projection position (manual search operation mode).

An image frame portion searched for a projection position is magnified and projected on a reader screen surface by a projection optical system of a main body of the apparatus such as a reader and can be read. In the case of a reader printer, when a print button is pressed to obtain an enlarged print of the image frame portion, the print mechanism operates, the image frame portion is enlarged and projected on a recording medium, and printing is performed. You.

[0004] There are several standards (modes) in the form of imprinting microimages on roll microfilms.
(A), (b), and (c) of FIG.

(A) is a microfilm in which one micro image is imprinted in the width direction of the film F (a microfilm in which one channel is imprinted in the film width direction). This imprinted film is hereinafter referred to as a "simplex film".

(B) is a microfilm in which two different microimages are imprinted in the width direction of the film F (a microfilm in which two channels (channels) are imprinted in the film width direction). This imprinted film is hereinafter referred to as "duo film".

(C) is a microfilm in which the front and back of the same image are printed in the width direction of the film F (a microfilm in which two channels are printed in the film width direction). This imprinted film is hereinafter referred to as "duplex film".

In each of the microfilms F of the above (a) to (c), a is assigned to an image frame portion sequentially printed along the length of the film, and m is assigned corresponding to the image frame portion. Search mark. In the automatic search operation mode, the search mark m is detected by the mark detecting means in the process of forward or reverse transport of the film, and the film transport means is automatically searched so that the desired image frame portion is searched at the projection position and stopped. The drive and stop are controlled.

A stop position setting in the film longitudinal direction (film feed direction) with respect to the projection position of the image frame portion
Adjustment is possible by controlling the film transport means. That is, with respect to the film feeding direction, the stop position with respect to the projection position of the image frame portion can be set so as to be projected on a leader screen of the main body of the apparatus such as a reader and stored in a preset print frame.

[0010] Channel switching with respect to the projection position of a microfilm in which two channels are imprinted in the film width direction such as a duo film of (b) or a duplex film of (c) is performed by using a film carrier ( Alternatively, a carrier upper unit including a film conveying means can be moved in the film width direction with respect to the support portion, and the movement of the film carrier in the film width direction is performed.

Conventionally, a device for moving the film carrier in the film width direction is composed of a manual operating tool such as a knob or a lever, and an interlocking mechanism for mechanically interlocking the manual operating tool and the film carrier. When switching channels for film or duplex film, the user operates the manual operation tool and moves the film carrier in the film width direction with respect to the device body such as the reader while watching the microfilm image projected on the leader screen. Thus, the relative position between the film and the screen is changed.

However, in the case of adopting the above-described configuration, when projecting a micro image having a channel different from that of the currently projected micro image onto a screen, a manual operation tool is operated one by one to operate the film. Carriers must be moved, and in order to project the necessary micro-images completely on the screen in accordance with the relative position between the film and the screen, it is necessary to carefully operate the manual operation tool. Cannot be performed efficiently.

Furthermore, even when a search is being performed under the control of an external device, if the channel changes, automatic execution is temporarily stopped at that point, and the projection position must be adjusted manually, so that the operator must adjust the projection position. Operate both the external device and the film carrier as the information retrieval device, or require a plurality of operators.

In view of this, a proposal has been made to automatically move the film carrier in the width direction of the film when the channel is found after the search for the channel switching of the duo film (Japanese Patent Publication No. Hei 6-1994).
103376, Japanese Patent Publication No. 7-1366).

[0015]

However, even in the case of such an automatic apparatus, when a film cartridge is replaced and a simplex film or the like in which one micro image is imprinted in the film width direction is projected, the projection position is set to the previous position. Film (for example, duo film), and the user manually moves the film carrier to change the relative position between the film and the screen while viewing the microfilm image projected on the screen. Was.

Further, since the image position of each channel in the duo film and the image position in the simplex film are different for each film and for each projection magnification, the channel image position of the duo film is relatively moved. Before starting, I had to redo the image position setting.

Accordingly, the present invention holds a long information recording medium so as to be conveyable like the above-mentioned film carrier.
An information recording medium holding carrier, and the carrier
And a moving means for moving the recording medium width direction, the information
An information retrieval apparatus for retrieving desired information in an information recording medium . .. Moving the carrier in the width direction of the information recording medium so that positioning of the required image information portion in the width direction of the information recording medium can be performed in a small number of times; .. To enable efficient projection of a desired image information portion regardless of the standard for imprinting image information on an information recording medium; It is an object of the present invention to ensure that a desired image information portion can be projected on a screen.

[0018]

SUMMARY OF THE INVENTION The present invention is an information retrieval apparatus having the following configuration.

[0019] (1) to be transported a long-shaped information recording medium
An information recording medium holding carrier to hold, and the carrier
Have a moving means for moving the information recording medium width direction
In the information search device for searching for desired information in the information recording medium, a base in the width direction of the carrier is provided.
A reference position detecting means for detecting a reference position;
When the reference position detecting means is moved in the width direction,
After detecting the reference position, move the carrier to the width direction.
An information retrieval device characterized by moving in a predetermined direction .

(2) The information retrieval apparatus described in (1 ) above
The predetermined amount of movement of the carrier in the width direction is
An information retrieval device comprising input means for inputting a distance from a reference position .

(3) The information retrieval apparatus described in (2 ) above
The carrier according to the type of the information recording medium.
(A) determining an amount of movement in the width direction .

(4) Any one of the above (1) to (3)
In the information search device according to one of the above, rotating means for rotating the projected image of the information recording medium, rotation angle detecting means for detecting the rotation angle of the rotating means, means for detecting the image projection magnification of the information recording medium, the rotation angle and the information retrieval system, characterized in that it comprises from images projected magnification correcting means for correcting the amount of movement of the width direction of the carrier.

(5) Any one of the above (1) to (4)
In the information retrieval apparatus according to One, the information of the external device or, et al., Information retrieval apparatus characterized by moving the carrier to a predetermined movement position in the width direction.

(6) Any one of the above (1) to (5)
The information retrieval device according to any one of claims 1 to 3, wherein the information recording medium is a roll microfilm, and the information recording medium holding carrier is a microfilm carrier.

<Operation> In other words, the information retrieval apparatus of the present invention is provided with a device for moving the carrier in the width direction of the microfilm as an information recording medium with respect to the microfilm carrier, exchanges the film, and replaces the duofilm. When the film is projected, since the projection position may be different from the previous time, the film is automatically moved to a movement position other than the duo film when it is determined that the film is not a duo film. Also, when an external device is connected to the information search apparatus and a search is performed under the control of the external device, when the microfilm search information is stored in the database of the external device, the time when the movement position is determined is determined. It is designed to move by and to automate the search.

The moving position of these carrier driving devices is determined by using an absolute moving method in which a reference sensor is arranged at a certain fixed position in the width direction of the film and a predetermined amount of movement is performed based on the reference sensor. And a reference sensor, and the amount of movement depends on the photographing model, photographing mode, photographing reduction ratio, etc. in the width direction of the microfilm projected on the microfilm. Since the positions are different, the movement amount from the reference sensor can be input and stored by the input means.

Further, a projection magnification detecting means is provided to correct the moving amount based on the projection magnification, and a rotation angle detecting means is provided even when the image is rotated by the image rotating means, so that the correcting means corresponding to the rotation angle is provided. With this arrangement, the shift amount of the movement amount can be corrected.

That is, in the present invention having the above-described structure, a search is performed from the currently projected myroc image to another micro image, and when it is determined that the image position is different, the carrier driving device is driven. By automatically moving the carrier in the width direction of the film, a desired micro image can be projected onto a predetermined portion of the screen without trouble. Further, as means for detecting the movement position of the driving device for moving the carrier,
Since it can be realized with only one reference sensor, it is designed to be simple and inexpensive.

Further, by detecting the projection magnification and the rotation angle, it is possible to correct the shift amount of the carrier movement amount.

[0030]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 (FIGS. 1 to 7) (1) Microfilm Reader Printer FIG. 1 is a front view of a microfilm reader printer equipped with a film carrier as an information search device according to the present invention. RP is a reader printer, C is a film carrier mounted on the reader printer, 30 is a leader screen, 16 is a projection lens, and 23 is a keyboard as input means.

FIG. 2 is a perspective view of an optical system in the reader printer. As will be described later, a desired image frame portion of the roll microfilm F is searched for on the projection glass portion A, which is a projection position, by an automatic image frame search operation of the film carrier C. The image frame portion is illuminated from the lower surface side by illumination means including a light source lamp 14, a spherical mirror 14a, a condenser lens 15, and the like disposed below the projection glass portion A on the reader printer main body side. Is transmitted through the projection lens 16 and fixed first to fourth mirrors 41 to 44 to form a magnified image on the rear surface of the leader screen (light diffusion plate) 30 at a predetermined magnification. The micro image can be read as a magnified image from the front side (reader mode).

Reference numeral 45 denotes a scanner having a scanning first mirror 46 and a second mirror 47, and reference numeral 48 denotes a printing mechanism. The scanner 45 is controlled to move forward and backward at right angles to the optical path between the fixed second mirror 42 and the fixed third mirror 43 of the reader unit optical system. In the reader mode, the scanning first mirror 46 is moved from the optical path. It is held in the retracted state position. When a print of the micro image enlarged and projected on the screen 30 is desired to be obtained, a print button is pressed to activate the print mechanism unit 48, and the scanner 45 is moved in a direction to enter the optical path to perform the scanning. The image light on the optical path is scanned by one mirror 46. The scanning light is enlarged and projected on the surface of the recording medium 50 via the scanning second mirror 47 and the exposure control shutter 49, and printing is executed (print mode).

Although the details of the printing mechanism 48 have been omitted,
For example, a transfer type electrophotographic copying mechanism using a rotating drum type electrophotographic photosensitive member 50 as a recording medium. The image light scanning movement speed of the scanner 45 is の of the peripheral speed of the photoconductor 50.

(2) Film Carrier C FIG. 3 is an external perspective view of the film carrier C. The film carrier C is a unit device that is detachable from the reader printer RP in this example, and includes a carrier lower unit 32 and a carrier upper unit 32a.
The carrier lower unit 32 is fixedly mounted on the reader printer RP.

The carrier upper unit 32a is a movable unit that is slid in the film width direction cd by the moving mechanism described later with respect to the carrier lower unit 32.

FIG. 4 is a perspective view of the internal mechanism of the carrier upper unit 32a. 32b is the carrier upper unit 3
2a is a bottom plate. Reference numeral 1 denotes a film supply cartridge in which a long microfilm F as an information recording medium is stored in a roll shape. In this embodiment, the film cartridge 1 is a front door 32b of the carrier upper unit 32a.
(FIG. 3) is opened and set on the film mounting portion of the carrier upper unit 32a.

Reference numeral 2 denotes a capstan roller for driving the microfilm F in the cut ridge 1. M1 is an extraction motor for driving the capstan roller 2, S
1 is a solenoid for bringing the capstan roller 2 into contact with the microfilm F via the support arm 3, and 4 is a spring for moving the support arm 3, the plunger 3 a and the capstan roller 2 to separate the capstan roller 2 from the microfilm F. is there.

M2 is a film rewinding motor for rotating the film spool in the cartridge 1.
S2 is a brake solenoid for the film rewinding motor M2. When the brake solenoid S2 does not operate, the motor M2 is rotatable. When the brake solenoid S2 operates (turns on), the control plate 5 is fixed to the motor shaft.
To prevent the rotation of the motor M2.

Reference numerals 6 and 7 are film guide rollers. 8
Is a take-up reel. In this example, the front door 32c (FIG. 3) of the carrier upper unit 32a is opened and the reel is detachably set on the mounting portion of the carrier upper unit 32a. M3
Is a film winding motor for rotating the winding reel 8, S3 is a brake solenoid for the motor M3, and 9 is a brake plate.

Although not shown, the cartridge 1
A guide plate is provided for guiding the film along a film feeding path between the reel and the take-up reel 8.

Reference numerals 17a and 17b denote detection means for detecting a search (measurement) mark m provided on the side of each image frame portion of the microfilm F. In this example, the detection means is a projection position which is a projection position. The glass part A is disposed on both sides of the film feed passage, and 17a is the A channel side,
Reference numeral 7b denotes a mark detection means on the B channel side.

The mark detecting means 17a and 17b have a built-in photoelectric conversion element, and the light from the lamp 14 is interrupted by the mark m during the forward or reverse transport of the microfilm F, as described later. And outputs a mark detection signal to the processing means 20 (FIG. 5) of the control system described later.

Reference numeral 28 denotes a photo encoder for detecting the film transport speed.

(3) Film Carrier Moving Mechanism In FIG. 4, B is a film carrier moving mechanism (information recording medium width direction moving device, shift mechanism). 31a ・ 3
Reference numeral 1b denotes two long holes 33a formed in the bottom plate 32b of the carrier upper unit 32a and having a length in the film width direction.
33b is a guide pin inserted into each of the long holes 31a and 31b and screwed and fixed to the carrier lower unit 32, and the bottom plate 32b of the carrier upper unit 32a is guided by the long holes 31a and 31b and the guide pins 33a and 33b. Thus, it is free to slide in the film width direction in the length range of the long holes 31a and 31b.

Reference numeral 35 denotes another slot formed between the two slots 31a and 31b of the bottom plate 32b of the carrier upper unit 32a and having a length in the film width direction.
The rack 34 fixedly provided on the carrier lower unit 32 side is exposed from the long hole 35.

Reference numeral 37 denotes a motor mounted on the bottom plate 32b of the carrier upper unit 32a, and reference numeral 36 denotes a pinion gear fixed to the shaft of the motor 37, which is engaged with the rack 34.

When the motor 37 is driven forward and reverse, the pinion gear 37 rolls on the rack 34, and the bottom plate 32b of the upper carrier unit 32a is moved to the lower carrier unit 32.
It is moved cd in the width direction of the microfilm F above.
That is, the carrier upper unit 32a is moved relative to the apparatus main body such as a leader in the film width direction cd.

The carrier upper unit 32a which is the movable side
Reference position detection means 38 is attached as detection means for detecting the absolute position of the carrier upper unit 32 on the fixed side, and the reference position detection signal is processed by processing means 2 described later.
0 to detect the movement distance of the carrier upper unit 32a from the reference position.

(4) Control System FIG. 5 is a block diagram showing a main control circuit configuration of the film carrier. Reference numeral 20 denotes a processing unit such as a microprocessor for collectively processing the mark information of the microfilm F detected by the mark detection unit 17. The processing unit 20 includes a transfer unit 21, a storage unit 22 as a storage unit for storing the mark information, And a control unit 25.

The transfer section 21 transfers the mark information detected by the mark detection means 17 to the storage section 22, and stores the mark information in the storage section 2.
Reference numeral 2 stores the number (address) of the designated image frame input from the input unit 23 such as a keyboard, and the mark information transferred from the transfer unit 21.

The control section 25 performs comprehensive control (for example, troubleshooting) in the processing means 20.
The control unit 25 also plays a role as a motor drive control unit for transporting the microfilm F. Further, it also functions as a reference position detecting means for moving the film carrier C in the width direction of the microfilm F in accordance with the processing result of the mark information, and also as a motor drive control means.

The operation unit 24 compares and calculates the image frame number input from the input unit 23 with the mark information stored in the storage unit 22, and outputs the result to the control unit 25.
Reference numeral 27 denotes a display for displaying an address of an image frame and the like.

(5) Operation of Film Feeding Unit The cartridge 1 is mounted on the upper unit 3 of the film carrier C.
When the camera is mounted on the mounting section 2a and the operator inputs a desired image frame number to the input means 23, the motor M1 is driven via the motor control circuit 26 and the solenoid S1 is operated. As a result, the capstan roller 2
The microfilm F comes out of the cartridge 1 by contacting the lead tape portion of the microfilm F coming out of the cartridge 1, and the leading end of the lead tape portion is
The film is conveyed along a film feeding path extending from the projection glass section A to the film guide roller 7 to the take-up reel 8. When the leading end of the lead tape portion approaches the take-up reel 8, the take-up motor M3 is driven, and the lead tape portion winds around the take-up reel 8 (auto-loading).

Next, the motor M1 and the solenoid S1 are deactivated, but the microfilm F is moved to the take-up reel 8
Then, the cartridge is forwarded from the cartridge 1 side to the take-up reel 8 side.

During the feeding of the microfilm F, the mark m detected by the mark detecting means 17 is compared with the previously input frame number by the arithmetic unit 24 after a predetermined time. The brake solenoid S3 is operated to control the take-up axis of the take-up reel 8 by operating the brake solenoid S3. Similarly, S2 also controls the axis of the motor M2 to stop the coasting rotation of the delivery spool in the cartridge 1 and to perform micro control. The feeding of the film F is stopped, and the film F
Projection glass portion A in which the desired image frame portion is the projection position
Is stopped (automatic search operation), and the micro image of the image frame portion is projected on the screen 30 via the projection lens 16.

Also, in the reverse transport control process of the microfilm F from the take-up reel 8 side to the cartridge 1, the automatic search operation control of the desired image frame portion of the film F is performed.

(6) Movement control of the film carrier C When the microfilm F used is a simplex type film as shown in FIG. 10A, the movement of the microfilm F in the longitudinal direction is performed in the same order as the photographing order. Will be That is, since the mark m of each micro image is present only on one channel side of the Sirenplex type microfilm F, the number of marks m of each micro image is counted using a signal from the mark detecting means 17a or 17b. Going up. Here, FIG.
The difference from the duo-type microfilm F shown in FIG. 13B is that even if the search is not completed, only one channel exists, and thus the channel is found.

In a state where the film carrier C is installed in the reader printer RP, a micro image as recording information on the micro film F illuminated by the light source lamp 14 is projected on the screen 30. However, if the micro image projected last time is a duo-type micro film F, the projected micro image may protrude from the screen 30 as shown in FIG. This is because, when the duo-type microfilm F is projected on the screen 30, the micro-images of the two channels are only partially projected on the screen 30 as shown in FIG. The micro image of one of the channels as shown in FIG.
This is because the film carrier C is moved so that the image is projected on 0.

The film carrier C (the carrier upper unit 32a) is moved by the film carrier moving mechanism B (FIG. 4) so that the duo type microfilm F and the non-duo type microfilm F can be mixed. By moving it in the width direction of the film F,
The relative position between the microfilm F and the screen 30 can be changed.

Thus, even when the simplex type microfilm F is used after the duo type microfilm F is used, for example, FIG.
As shown in (1), the micro image can be projected onto the screen 30 without fail.

More specifically, a motor 37 (FIG. 3) is used to move the film carrier C by a predetermined distance from the reference position detected by the reference position detecting means 38 so that the designated micro image can be projected on the screen 30. The drive control of 4) is configured to be performed. As a result, the micro image on the screen 30 is, for example, shown in FIG.
Are projected as shown in FIG.

To explain this control further, the processing means 20 (FIG. 5) determines the drive distance of the motor 37 from the reference position detected by the reference position detection means 38 described above.
Calculation is performed based on time or the number of pulses, and the current position of the microfilm F in the width direction can be stored. Then, the search for micro images is started,
At the point in time when the microfilm F is determined to be a microfilm F other than the duo type, if the previous film type is the duo type, the motor 37 is moved in a predetermined direction by a predetermined distance from the reference position, and the film carrier C is moved to the microfilm. F is moved in the width direction. Also book
Connect an external device to the information retrieval device and control from the external device
When performing a search, the database
If you have microfilm search information on the source,
Move when the movement position is known, and
It is intended to be mobilized.

The reference position detecting means 38 is arranged so that the position of the center of the microfilm F in the width direction can be determined, and the reference position detecting means 38 must pass when the motor 37 is driven to move the film carrier C. , Can be moved in absolute position.

The reference position detecting means 38 may be located at the end of the microfilm F in the width direction as long as the position in the width direction of the microfilm F can be recognized. However, when the movement of the film carrier C is performed, it must be controlled so that the film carrier C passes through the reference position.

In this embodiment, the film carrier C is moved when the search is started and the film type is determined. However, the film carrier C may be moved when the search is completed. That is, when the micro film F of the duo type and the micro film F other than the duo type are used together, the input means 2 using the frame number is used.
The micro image input from 3 can be projected on the screen without any trouble.

However, the moving distance from the reference position differs from the reference position because the position in the width direction of the microfilm F photographed on the microfilm F differs depending on the photographing model, photographing mode, photographing reduction ratio, and the like. The distance is input from the input means 23 and can be stored.

The method of storing the movement amount from the reference position is as follows.
Unless the counting method of the mark m, the type of the mark m, and the like are classified and stored according to the specifications of the film F, it is impossible to cope with various photographing types of the film F. However, although it is present in the film carrier C, it may be added to the setting items of the search mode, so that the user may select the search mode and do not need to re-enter the moving distance.

As described above, in this example,
In a film carrier that holds a microfilm F on which a microimage is imprinted, and an image search device that includes a film carrier width direction moving unit that moves the film carrier in the width direction of the microfilm,
By moving the film carrier in the width direction of the microfilm when the position of movement in the width direction of the film is determined, it is possible to reduce the number of steps of positioning the microfilm in the width direction for projecting a micro image on a screen.

Further, it has a reference position for moving the film carrier, and has means for inputting a movement amount of the film carrier from the reference position in the microfilm width direction, and a storage device for storing the movement amount. Microfilm F with different imprinting standards for microfilm F
Also, when using the method, once the amount of movement from the reference position is set by the input means, after that, only a search is performed, and the film carrier is moved so that any micro image is projected to a predetermined position. Therefore, it can be realized with a simple configuration of the means for moving the film in the width direction and the reference sensor, and the projecting operation of the micro image can be performed efficiently irrespective of the standard for imprinting the microfilm F.

<Embodiment 2> (FIGS. 8 and 9) As described in Embodiment 1 above, FIG.
In order to project a micro image of a simplex type microfilm F as shown in FIG.
The film carrier C was able to be moved to the position of the simplex type microfilm F by the shift mechanism B.

However, when a prism lens 40 is arranged on the projection optical path as an image rotating means as shown in FIG. 8, for example, an inclined projection micro image is corrected as shown in FIG. 9A. Therefore, when the prism lens 40 is rotated, the image projection position moves like Y1.

Therefore, in this embodiment, a description will be given of a correcting means for correcting the relative position between the film and the screen by changing the shift amount of the film carrier C in the film width direction according to the image rotation and the projection magnification.

FIG. 8 shows a prism lens 40 for image rotation.
Driving means for a projection zoom lens 41 for image projection;
FIG. 5 is a diagram showing a detection unit for detecting the rotation angle and the projection magnification.
42, a motor for rotating the prism lens 40;
Reference numeral 3 denotes a motor for rotating the zoom lens 41; 46, a rotation angle detection unit for the prism lens 40; 47, a rotation angle detection unit for the zoom lens 41; 44, a manual knob;
Is an encoder. By operating the manual knob 44 in the forward and reverse directions, the rotation of the prism lens 40 or the zoom lens 41 is controlled by the electric mechanism to a rotation angle corresponding to the operation rotation angle amount in conjunction therewith.

That is, when the knob 44 is rotated, the rotation angle amount is read by the encoder 45, and the rotation angle information is transmitted to the processing means 20 which is a control circuit of the apparatus. That is, the processing means 20 converts the number of output pulses of the encoder 45 when the knob 44 is rotated into a rotation angle of the knob 44, and based on the angle information, the prism lens 40,
Alternatively, the rotation angle of the zoom lens 41 is calculated, and a drive signal of the prism lens motor 42 or the zoom lens motor 43 is transmitted to the motor drive control circuit 26 so that the prism lens 40 or the zoom lens 41 Rotated by the corresponding angle.

At this time, the user can select whether to rotate the prism lens 40 or the zoom lens 41 by using a select key (not shown) or the like.

When the prism lens 40 is rotated,
Angle information is detected by the prism lens rotation angle detection means 46 and sent to the processing means 20. When the zoom lens 41 is rotated, the angle information is detected by the zoom lens rotation angle detection means 47 and transmitted to the processing means 20.

FIG. 9A is a diagram showing the movement of an image when the micro image projected on the screen 30 is rotated by the prism lens 40. In the figure,
When the prism lens 40 is rotated, the micro image projected on the screen 30 moves to the position in the direction of the arrow Y1.

FIG. 9B is a diagram showing the movement of the micro image projected on the screen 30 when the zoom lens 41 is rotated to enlarge the image.
In the figure, when the zoom lens 41 is rotated, the micro image projected on the screen 30 is changed to an arrow Y.
It will move to the position of direction 2.

In the above arrangement, when the film carrier C moves in the microfilm width direction, the rotation angle detected by the prism lens rotation angle detection means 46 and the rotation angle detected by the zoom lens rotation angle detection means 47 are The processing means 20 is configured to perform the calculation and correct the movement amount.

That is, in order to enlarge to a desired magnification,
When the zoom lens 41 is rotated, the projection magnification changes as shown in FIG. 9B, and the zoom lens 41 is enlarged and moved to the position indicated by the arrow L2.
The processing means 20 calculates the moving amount L based on the detected magnification and a detecting means for detecting whether the image is projected without protruding from the screen by an image position detecting sensor (not shown).
2 is calculated, and the movement amount of the film carrier C is corrected.

In order to correct a tilted image,
When the prism lens 40 is rotated, the projected image is rotated as shown in FIG. 9A and protrudes from the screen 30. Therefore, the processing unit 20 uses the detected angle θ and an image position detection sensor (not shown). Then, the movement amount L1 is calculated based on the detection means for detecting whether or not the image is projected without protruding from the screen 30. Here, the moving amount L1 is converted from the projection magnification to correct the moving amount of the film carrier C.

In this embodiment, the prism lens 40 and the zoom lens 41 are driven by a motor.
If the projection magnification can be detected, manual driving may be performed.

Since the optical axis shift due to the rotation of the prism lens 40 occurs, the image projection position may be shifted. However, the predetermined position calculated from the rotation angle of the prism lens 40 by the optical axis shift detecting means (not shown). May be detected and added to the correction value.

In the case of the duo-type microfilm F, the direction in which the image is photographed changes depending on the channel, and the direction of the image may be reversed when projected on the screen 30, so that the prism lens 40 is rotated. The image may be automatically rotated in the normal direction, and a shift amount generated at that time may be added to the correction value.

Thus, the rotation angle of the projected image,
By adding the correction value based on the projection magnification to the movement amount, the film carrier can be more accurately moved to a predetermined position, so that a desired image can be reliably displayed on the screen 30.

[0086]

As described above, according to the present invention, an information recording medium capable of transporting a long information recording medium, such as a roll microfilm carrier mounted on a microfilm reader or the same printer, is provided. Media holding key
Carrier, and moving means for moving the carrier in the width direction of the information recording medium.
An information retrieval device for retrieving information of. Information record
By moving the medium holding carrier in the width direction of the information recording medium, information recording medium width direction alignment with respect to a predetermined position of a required image information portion can be performed with a small number of steps.
. It is possible to efficiently perform a projecting operation of a desired image information portion irrespective of the standard of imprinting image information on an information recording medium. A desired image information portion can be reliably projected on a screen, and the intended purpose is well achieved.

[Brief description of the drawings]

FIG. 1 is a front view of a micro film reader printer equipped with a film carrier as an information search device according to the present invention.

FIG. 2 is a perspective view of an optical system in the reader printer.

FIG. 3 is an external perspective view of a film carrier.

FIG. 4 is a perspective view of an internal mechanism of a carrier upper unit.

FIG. 5 is a block diagram showing a main control circuit configuration of the film carrier.

FIG. 6 is a micro image of a simplex type micro film projected on a screen, and (a).
Is a diagram in a state where an image is missing, and (b) is a diagram in a state where no image is missing.

FIGS. 7A and 7B are micro-images of a duo-type microfilm projected on a screen, wherein FIG. 7A shows a state in which image defects occur in the projected micro-images of both channels, and FIG. (C) when the micro image is projected without any missing image.
Shows the image when the micro image of the other channel is projected without missing images

FIG. 8 is a diagram showing driving means for a prism lens for image rotation and a projection zoom lens for image projection, and means for detecting the rotation angle and projection magnification thereof.

9A is a diagram illustrating image movement due to rotation of a prism lens, and FIG. 9B is a diagram illustrating image movement due to rotation of a zoom lens.

FIGS. 10 (a), (b), and (c) are diagrams showing examples of the form of imprinting a micro image of a roll micro film.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Cartridge, 2 ... Capstan roller, 3 ... Support arm, 3a ... Flanger, 4 ... Spring, 5 ... Control plate, 7 ... Film guide roller, 8 ... Take-up reel, 9 ... Control plate, 14 ... Lamp, 15 ... Condenser lens, 16 ... Projection lens, 17 ... Detection means, 17a ... A channel side detection means, 17b ... B channel side detection means, 20 ... Processing means, 21 ... Transfer section, 22 ... Storage section, 23 ... Input means , 2
4 arithmetic unit, 25 control unit, 26 motor drive control circuit, 27 display unit, 30 screen, 31a elongated hole,
31b: long hole, 32: film carrier lower unit,
32a: film carrier upper unit, 32b: bottom plate of the film carrier upper unit, 33a: guide pin, 34: rack, 35: long hole, 36: pinion gear,
37: motor, 38: position detecting means, 40: prism lens, 41: zoom lens, 42: prism lens motor, 43: zoom lens motor, 44: manual knob, 45
... Encoder, 46 ... Prism lens rotation angle detection means, 47 ... Zoom lens rotation angle detection means, C ... Film carrier, M1 ... Extraction motor, M2 ... Rewind motor, M3 ... Rewind motor, RP ... Reader printer, S1: Solenoid, S2 brake solenoid, S3
… Brake solenoid.

Claims (6)

(57) [Claims] 1. An information recording medium which is long and can be transported .
An information recording medium holding carrier, and the carrier
And a moving means for moving the broadcast recording medium width direction, wherein
In an information search device for searching for desired information in an information recording medium, a reference position in the width direction of the carrier is detected.
Having a reference position detecting means for moving the carrier in the width direction.
When moving, the reference position detecting means detects the reference position.
After that, the carrier is moved by a predetermined amount in the width direction.
Information retrieval device being characterized in that the so that. 2. The information retrieval apparatus according to claim 1, wherein the movement amount of the carrier in the width direction is set to the reference position.
An information retrieval device comprising input means for inputting the distance as the distance . In the information retrieval apparatus according to claim 3] 請 Motomeko 2, depending on the type of the information recording medium, wherein the carrier
An information retrieval device for determining a widthwise movement amount . 4. The information retrieval apparatus according to claims 1 any one of claims 3, a rotation means for rotating the projected image of the information recording medium, the rotation angle detection that detects a rotation angle of said rotating means means and information means for detecting an image projection magnification of the recording medium, the rotation angle and the information retrieval device, characterized in that it comprises from images projected magnification correcting means for correcting the amount of movement of the width direction of the carrier. 5. The information retrieval apparatus according to claims 1 any one of claims 4, the information of the external device or al, to move the carrier to the predetermined movement position in the width direction Characteristic information retrieval device. In the information retrieval apparatus according to any one of the claims 6] claims 1 to claim 5, the information recording medium is a roll microfilm, information storage
An information retrieval device, wherein the recording medium holding carrier is a microfilm carrier.