JPH0782197B2 - Imaging device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Purpose of the invention [Industrial field of use] The present invention relates to a photographing apparatus for recording / saving a subject image.

[Conventional technology]

As a means for recording and storing subject image information such as various important documents, documents, drawings, checks, etc., (1) In recent years, a subject image is formed on an image reading means such as an image sensor through an image forming means. Photoelectric reading is performed as an electric pixel signal, and the read information is stored in an external recording device such as a magnetic medium or an optical disk, and when necessary, the desired stored image information is searched for and reproduced as an optical signal, as a hard copy or CRT. An electronic file system for outputting image information on a display device has become widespread.

(2) As a general-purpose means before that, there is a microfilm method in which a subject image is reduced and image-formed on a photographic film as a recording medium via an image-forming means. In some cases, a subject image is formed on a recording medium other than a photographic film such as an electrophotographic photosensitive member and recorded / stored as a 1: 1 or reduced copy.

Here, for convenience, the recording / storing method of photoelectrically reading the subject image by the image reading means as in the above (1) is the first recording mode, and the recording / storing method of imprinting on the recording medium as the second recording is the second recording. It is called mode.

The first recording mode is a quick search (call) of recorded image information.
When the second recording mode is the microfilm system, the image recorded on the microfilm is excellent in storability, high density, and evidence ability.

Therefore, by using the above-mentioned first and second recording modes in combination, the advantages of both are utilized, and a mutual recording provides a more excellent recording / storing / management / utilization system of subject image information.

[Problems to be solved by the invention]

The first recording mode device and the second recording mode device of the related art are individually independent devices that are not linked to each other. Therefore, in the case of the above combined system, the first recording mode device and the first recording mode device are independent of each other. Two devices of the second recording mode device are held, and the photographing work for the subject image to be recorded / saved is first performed by one device and then performed by the other device.

However, having both of the above devices as independent devices independent of each other, and performing the work twice for each device for the same subject image greatly reduces the equipment cost, installation space, workability, etc. There's a problem.

The present invention has been proposed in view of the above, and it is possible to perform recording of a subject image to be recorded in both the first and second recording modes.
It can be executed in a single shooting operation, so it has good workability, and the device as a whole is compact and low cost,
Therefore, problems such as equipment costs and installation space can be solved. An object is to provide a multi-function photographing device.

B. Structure of the Invention [Means for Solving the Problems] The present invention relates to a first recording mode in which a subject image is formed on an image reading means through an image forming means and photoelectrically read, and a subject image is formed. A main device equipped with an execution device for any one of the second recording modes for forming an image on a recording medium via the recording means, and an execution device for the other recording mode; And a movable optical path splitting means for intervening in the optical path of the main device to split the optical path light and guide the light to the auxiliary device when the auxiliary device is attached to the main device. The gist is an imaging device characterized by.

[Action]

The main device alone can record the subject image in either the first or second recording mode provided in the main device.

When the sub device is attached to the main device, the split light image of the subject image is introduced from the optical path on the main device side to the sub device side by the optical path splitting means, and the sub device records at the same time the main device records the subject image. It runs in parallel. That is, the subject image recording in both the first and second recording modes is efficiently performed by one shooting operation.

Among the execution devices in the first recording mode and the second recording mode, devices common to both of them are attached to the main device side, for example, an object illumination platen part, an illumination means, an object automatic supply means, etc.
Since it is not necessary to provide it on the sub device side, the first and second
It is possible to compactly and inexpensively construct the entire multifunctional imaging device capable of executing both recording modes, and to reduce equipment costs, installation space, and the like.

Therefore, by combining the first and second recording modes together, better recording / saving / management / recording of subject image information can be achieved.
It is possible to implement the utilization system reasonably and economically.

〔Example〕

Example 1 (FIGS. 1 to 3) In FIG. 1, A is a general reference numeral of the main device (first camera unit), and B is a cartridge which can be freely attached to and detached from the main device as indicated by arrows a and b. This is a general code for the sub device (second camera unit), and the figure shows a state in which the sub device B is attached to the main device A.

In the case of this example, the main apparatus A is a device that executes the first recording mode,
That is, a device for forming a subject image on the image reading means through the image forming means and photoelectrically reading the same is provided, and the sub device B
Is equipped with a device for executing the second recording mode, that is, a device for forming an image of a subject image on a recording medium through an image forming means and recording the image, specifically, a microfilm photographing mechanism.

In the main device A, reference numeral 1 is an automatic document feeder arranged on the upper part of the device, which is a check, a bill, a stock certificate, a slip, a drawing,
A document storage container 2 for stacking and storing a document O to be recorded / stored such as a document with the image side facing downward, a document feed roller pair 3,
It includes a platen glass plate (photographing section) 4, a guide plate 5 facing the glass plate 4 with a gap, a document discharge roller pair 6, a photographed document receiving container 7, and the like. Reference numeral 8 is a document illumination lamp arranged to illuminate the lower surface of the platen glass plate 4, D is a variable diaphragm as an optical path light amount adjusting means, 9 is a half mirror as an optical path splitting means, and 10 is a transmitted light optical axis of the half mirror. A first slit plate disposed on the side, 11 is a photographing lens as an image forming unit, 12 is a shutter, 13 is an image reading unit including a solid-state image sensor array such as a CCD array as an image reading unit, and 14 is a half mirror 9 2 is a second slit plate arranged on the optical axis side of the reflected light. Reference numeral 15 is a positioning stopper member of the auxiliary device B inserted and mounted in the main device A, and MS is the auxiliary device B.
It is a micro switch as a means for detecting whether or not is attached.

In the above description, the half mirror 9 is swingable around the support shaft 9a, and as shown by the solid lines in FIGS. 1 and 2, the half mirror 9 intervenes in the optical path with an inclination of about 45 ° with respect to the optical path axis of the main unit side. It is possible to switch between one posture and a second posture that hangs downward as shown by the chain double-dashed line and retracts outside the optical path. In the case of this example, the support shaft
Reference numeral 9a is a rotary shaft driven by a motor M1 (FIG. 2), and a half mirror is attached to and supported by this rotary shaft, and the first and second postures of the half mirror 9 are controlled by controlling energization of the motor M1. Are mutually switched. The variable diaphragm D is controlled by a motor M2 (Fig. 2). Both motors M1 above
・ M2 is controlled by the control circuit (device state detection / motor drive circuit) C. The auxiliary device B is connected to the main device A in this control circuit.
The ON / OFF signal of the micro switch MS as a means for detecting whether or not the device is attached to the is input.

In the sub-device B, 17 is a raw film cassette loaded in the sub-device B, and a long raw film F is rolled and stored on a reel. The front end side is wound around a take-up reel 22 manually or by automatic loading between a guide roller 18, a capstan roller 19 and a pinch roller 20, and a feed roller pair 21. Reference numeral 25 is a shutter provided on the front side of the capstan roller 19, 24 is a projection lens as an image forming means provided in front of the shutter, and 23 is an opening provided in the front wall of the auxiliary device housing of the lens. The above-mentioned opening 23, lens 24, shutter 25, capstan roller 19
Is on the same axis line, and in the state where the auxiliary device B is properly inserted and mounted in the main device A, the axis line and the reflected light side of the half mirror 9 in the optical path on the main device A side are in the intervention state. The light L ₂ that is aligned with the optical axis and reflected from the half mirror 9 surface is the second
Slit plate 14-> Sub device B through the opening 23 in the sub device housing
Introduced to the side.

(1) The main device A functions as a photographing device in the first recording mode regardless of whether the auxiliary device B is attached or not attached.

When the sub device B is not attached to the main device A, the micro switch MS is off. Corresponding to this, the motors M1 and M2
Is controlled by the control circuit C, the half mirror 9 is switched and held in the second posture retracted from the optical path, and the variable diaphragm D
However, it is automatically controlled to the proper aperture value state when the half mirror does not intervene in the optical path.

The documents O stored in the document container 2 of the automatic document feeder 1 are fed one by one from the lowest one to the outside of the container by the operation of a one-sheet feeding means such as a feed belt (not shown). Then, it is introduced between the platen glass plate 4 and the guide plate 5 at a predetermined constant speed by the document feed roller pair 3, and is conveyed in the direction of the discharge roller pair 6.

The document illumination lamp 8 is turned on at or before the time when the leading edge of the transported document reaches the predetermined exposure scanning start position of the platen glass plate 4 when it is detected by the transported document detecting means (not shown). The shutter 12 is held in the open state by the document detection signal of the document detection means.

While the document is being conveyed on the platen glass plate 4, the downward image surface is sequentially illuminated by the lamp 8 from the front side to the rear side through the platen glass plate 4, and the first slit plate 10 → projection lens 11 → open. The image is projected onto the light receiving portion of the image reading portion 13 including the solid-state image sensor array through the shutter 12 in the state.

Thus, due to the main scanning function of the image reading unit 13 and the sub-scanning movement of the document on the platen glass plate 4 at a predetermined speed, the images on the downward image surface of the conveyed document are sequentially photoelectrically transferred from the front end side to the rear end side. The read image signal (time-series electric digital pixel signal) S read from the image reading unit 13 is read.
Is output.

When the leading edge of the original document conveyed on the platen glass plate 4 by the feed roller pair 3 reaches the discharge roller pair 6, the original document is relayed to the roller pair and is continuously conveyed at a predetermined speed and discharged to the receiving container 7 outside the machine. . Then, the next lowest document in the document storage container 2 is conveyed to the platen glass plate 4, and the cycle of reading the document image is repeated to sequentially read all the stored documents in the container 2. Automatic supply / reading processing is performed.

The image signal S read from the image reading unit 13 is transmitted by the transmission cable.
30 via an external storage device such as a magnetic medium or an optical disk or a CP
The read image is input to a signal processing device 31 such as an electronic editing system device equipped with U, and the read image is recorded / saved or edited / recorded / saved.

That is, the original image is recorded / saved in the first recording mode. The electronic editing system device enables on-the-spot processing of immediate editing / classification of read images. If a high density external storage medium such as an optical disk is used, mutual backup with a microfilm, which will be described later, can be achieved, and the safety can be further improved.

(2) When the auxiliary device B is attached to the main device A and combined, it functions as a multi-function photographing device capable of performing image recording in both the first and second recording modes by one photographing operation.

When the auxiliary device B is attached to the main device A, the micro switch MS is on, and the motors M1 and M2 are correspondingly controlled by the control circuit C, and the half mirror 9 is in the first posture in which it intervenes in the optical path. The optical path is switched and held, and the optical path is split into the transmission-side optical path and the reflection-side optical path of the mirror by the intervention of the half mirror 9. The variable diaphragm D is automatically controlled to an appropriate diaphragm value state when a half mirror intervenes in the optical path.

Further, a document feeding operation performed on the main device A side by mechanically coupling a driven portion (not shown) on the auxiliary device B side to a drive unit (not shown) on the automatic document feeder 1 on the main device A side. The capstan roller 19 and the feed roller pair on the sub device B side
21. The take-up reel 22 can be driven to rotate.

Further, the auxiliary device B is connected to the control circuit (not shown) on the main device A side.
The electric circuit on the side is electrically coupled and the control circuit on the side of the main device A can electrically control the sub device B.

When the automatic document feeder 1 on the main unit A side is operated to feed the original to the platen glass plate 4, the downward document surface of the original conveyed on the platen glass plate 4 at a predetermined speed is ramped as described above. The light reflected by the document surface of the illumination light is incident on the half mirror 9, and the light L ₁ transmitted through the half mirror 9 is photoelectrically read by the image reading unit 13 as described above.

On the other hand, the light L ₂ reflected by the half mirror 9 is reflected by the second slit plate 14
→ Light enters the sub device B through the opening 23. The shutter 25 on the sub device B side is controlled to open in synchronization with the shutter 12 on the main device A side. Capstan roller 19, feed roller pair 21,
The take-up reel 22 receives a driving force from the drive unit of the automatic document feeder 1 on the main device A side, and is rotationally driven at a predetermined speed in synchronization with the image reading by the image reading unit 13 on the main device A side. That is, the film is fed at a predetermined speed. The film feed speed is calculated from the conveyance speed of the original O on the platen glass plate 4 and the reduction ratio of the lens 24.

Reflected light from the half mirror 9 incident on the sub device B side
L ₂ is reduced and photographed on the surface of the film F which is being conveyed at a predetermined speed in a suspended state on the left substantially half circumferential surface of the capstan roller 19 through the imaging lens 21 and the shutter 25 in an open state (slit exposure). , As a microfilm image.

FIG. 3 is a block diagram of the configuration of the image reading unit 13 on the main device A side, and 13a is a solid-state image sensor array such as CCD, and the light L ₁ transmitted through the half mirror 9 is imaged on the light receiving unit of this array. It is projected and photoelectrically converted. The photoelectric conversion signal is an amplifier
The signal is amplified by 13b and converted into a digital signal by the binarizing circuit 13c, and the time series electric digital pixel signal S is input to the signal processing device 31 such as an external recording device via the branching circuit 13d. Further, a control synchronizing signal Sa from the branch circuit 13d to the sub-device B as a microfilm photographing device is sent to the main control circuit 32.
And the drive of the sub device B is controlled by the synchronizing signal Sa so that the sub device B in the second recording mode synchronizes the same document with the main device A in the first recording mode. And then run in parallel. Further, after the photographing of the same original document in both modes is completed, the photographing of the next original document is performed.

Thus, by feeding the document once to the platen glass plate 4, which is the photographing unit, the photographing of the document image by the main device A in the first recording mode and the photographing by the sub device B in the second recording mode are simultaneously executed. .

The film that has been photographed in the sub-device B is then developed and arranged and stored.

Example 2 (FIG. 4) This example is a modification of the example shown in FIG. 1, and in the apparatus shown in FIG. 1, a half mirror 9 as an optical path splitting means arranged on the main apparatus A side and a second slit plate 14 are provided. Is provided on the side of the sub device B, and other configurations are the same as those of the device of FIG.

The half mirror 9 is fixedly mounted on the sub device B side so that the half mirror 9 enters the optical path on the main device A side at an inclination angle of approximately 45 ° when the sub device B is mounted on the main device A. There is. Therefore, in the case of this example, the mirror driving motor M1 in the circuit of FIG. 2 is not provided.

When the sub device B is not attached to the main device A,
The micro switch MS is off, and the motor M2 (FIG. 2) is controlled by the control circuit correspondingly, and the variable diaphragm D is automatically controlled to the proper diaphragm value state when the half mirror 9 does not intervene in the optical path. To be done. Then, the illumination light reflected light of the document O which is conveyed on the platen glass plate 4 passes through the first mirror as it is because the half mirror 9 does not intervene in the optical path.
The light enters the slit plate 10, passes through the projection lens 11 and the shutter 12 that is held open, and is image-projected on the image reading unit 13.

When the auxiliary device B is attached to the main device A, the half mirror 9 on the auxiliary device B side intervenes in the optical path on the main device A side,
Further, the micro switch MS is on, and the motor M2 is controlled by the control circuit C corresponding to this, and the variable diaphragm D is automatically controlled to the proper diaphragm value state when the half mirror 9 intervenes in the optical path.

Light reflected from the original surface from the platen plate 4 side is provided with upper and lower openings 23 provided in the auxiliary device housing wall corresponding to the upper and lower parts of the half mirror 9.
The image reading section on the side of the main device A, which is incident on the surface of the half mirror 9 through the upper opening 23a of a / 23b, passes through the lower opening 23b and the transmitted light L ₁ of the half mirror 9 is directed to the first slit plate 10.
To 13. The reflected light L ₂ from the surface of the half mirror 9 is directed to the second slit plate 14 and reaches the capstan roller 19 which is the film exposure portion of the sub device B.

As a result, the main device A takes the first recording mode and the sub device B takes the second recording mode for the same document at the same time.

By providing the half mirror 9 as an optical path dividing member on the sub device B side, it is possible to reduce the cost on the main device A side, improve the optical axis accuracy with the recording medium F, and project the image. By installing a half mirror having a light amount division ratio corresponding to the magnification of the lens 24, it is possible to shoot with an appropriate light amount.

If the half mirror 9 as the optical path splitting means is kept in the optical path of the main apparatus A at all times, the optical path light loss in the recording mode system on the main apparatus A side when the sub apparatus B is not attached to the main apparatus A and used. It becomes a member. Therefore, when the half mirror 9 is attached to the main device A in the auxiliary device mounting state, the half mirror 9 is intervened in the optical path on the main device side to split the optical path light and guide the light to the sub device side. On the other hand, when it is not attached and used, the half mirror 9 is provided as a movable member that retreats out of the optical path, so that the above-mentioned problem that the half mirror 9 becomes a light amount loss member in the recording mode system on the main apparatus A side is solved, and the shooting speed is increased. Can be achieved. The movable diaphragm D is controlled in response to the attachment / detachment of the auxiliary device B to the main device A, that is, the intervention / non-intervention of the optical path of the half mirror 9, and the image reading on the main device A side in the state where the optical path is divided by the intervention of the half mirror 9. A function of optimizing the amount of light incident on the section 13 and the recording medium F on the side of the sub device B, and optimizing the amount of light incident on the image reading unit 13 on the side of the main device A when the half mirror 9 is retracted out of the optical path. do.

In Examples 1 and 2 described above, the main device A side may be provided with the second recording mode execution device, and the sub device B side may be provided with the first recording mode execution device.

The solid-state imaging device array 13a (FIG. 3) such as a CCD array which constitutes the image reading unit 13 in the first recording mode may be another photographing tube or the like as long as photoelectric conversion is possible and sufficient resolution is obtained.

The execution device in the second recording mode may be a copying process device such as an electrophotographic device mainly including a photosensitive drum, in addition to the microfilm photographing device.

The means for detecting the attachment of the sub device B is not limited to the microfilm switch MS, and any means capable of confirming the presence or absence of the sub device B with respect to the main device A may be used.

In addition to the mechanical drive diaphragm D of the embodiment, the light quantity adjusting means may be an electric means such as dimming of a liquid crystal shutter or a lamp, and the electric means has an advantage that the configuration is simplified.

The first posture / second posture switching movement mechanism for the optical path of the half mirror 9 as the optical path splitting means in Example 1 is not limited to the rotary movement type, but may be a parallel movement type. Any mechanism may be used that is intervenely moved to and stably held at a predetermined position in the optical path in a predetermined posture, and is retracted and held outside the optical path when the optical path division is unnecessary.

In Examples 1 and 2, the original is moved to perform the exposure scanning, but the original is stopped and the optical system or the image pickup device and the recording medium are moved to perform the scanning. Alternatively, the still original image may be flash-exposed on the stationary two-dimensional array image pickup device and flat recording medium surface.

In the state where the sub device B is attached to the main device A by providing the mode selection switching means, the main device A
It is also possible to selectively execute shooting in only one of the recording mode on the side and the recording mode on the side of the sub device B.

After performing only the shooting in the first recording mode, only the necessary information among the information stored (stored) in the external storage device (signal processing device) 31 is reproduced from an electric signal to an optical signal to produce a microfilm or the like. It is also possible to have a configuration having an optical signal reproducing device for copying onto the recording medium. By doing so, it becomes possible to copy the information edited by the electronic editing device onto a recording medium such as a microfilm.

As described above, according to the present invention, the device of the present invention records the subject image to be recorded / saved in the first recording mode, that is, the subject image is recorded in the electronic file system and the second recording mode, that is, the microfilm. It is possible to simultaneously perform image recording on a recording medium such as a system in a single shooting operation of a subject image, and therefore workability is good, and the apparatus as a whole is compact and low cost, and therefore equipment cost is high. It is also possible to reduce the installation space and the like.

The combined use of the first and second recording modes makes the most of the advantages of both recording modes, and mutual backup makes it possible to implement a better recording / storing / management / utilization system of subject image information.

Since the main device having one recording mode executing mechanism and the other auxiliary device having the other recording mode executing device are mounted and combined with the main device to be used together, one recording desired by the user side is performed. It is possible to install and use only the main device equipped with the mode execution device, and if necessary, purchase the sub device equipped with the other recording mode execution device and use them in combination, which is economical. Can be used for.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of the apparatus of the first embodiment, FIG. 2 is a block diagram of a control system of a movable half mirror and a variable diaphragm of the apparatus, FIG. 3 is a configuration block diagram of an image reading unit, and FIG. It is a schematic block diagram of a 2nd Example apparatus. A is a main unit equipped with an execution device of the first recording mode, B
Is an auxiliary device equipped with a second recording mode execution device (microfilm photographing mechanism), 1 is an automatic document feeder provided on the main device side, 9 is a half mirror as an optical path splitting means, and D is an optical path adjusting means. , 13 is an image reading unit, F is a microfilm, and 19 is a capstan roller.

Claims (2)

[Claims] 1. A first recording mode in which a subject image is formed on an image reading means via an image forming means and photoelectrically read, and a subject image is formed on a recording medium via the image forming means to record an image. A main device having an executing device for one of the second recording modes, an auxiliary device having an executing device for the other recording mode and detachably attached to the main device, and a main device An image pickup apparatus comprising: a movable optical path splitting unit that intervenes in an optical path on the main unit side when the auxiliary unit is mounted and splits the optical path light to guide the light to the secondary unit side. 2. A variable light quantity adjusting means is provided in the optical path of the main device, and the light quantity adjusting means is controlled in response to the intervention / non-intervention of the optical path dividing means with respect to the optical path accompanying the attachment / detachment of the auxiliary device. The imaging device according to claim (1).