JPH0736122A - Picture reader - Google Patents

Abstract

PURPOSE:To realize automatization such as AF and AE with high accuracy and to obtain a picture reader to which a picture work function, etc., is added by dividing a light beam from a light source to two of a reader system optical path and a printer system optical path and using the light beam guided to the printer system optical path for the detection of a picture. CONSTITUTION:A half mirror 21 is provided above a projection lens 11 and the light beam from the lens 11 is divided to the reader system optical path and the printer system optical path, respectively. The light beam transmitted through the mirror 21 out of the divided light beams is projected on a screen 14. The reflected light is reflected by a 1st mirror for AF 20 and guided to the printer system optical path by a scanning mirror 12 at a retreat position, then guided to a sensor 1 by a 2nd mirror for AF 22 on the printer system optical path through printer system mirrors 15, 16 and 17, so that AF operation is performed. Therefore, the AF operation is executed at a picture part where contrast is excellent, and simultaneously the picture is projected on the screen 14, whereby the AF operation is executed while it is confirmed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reading device, and more particularly to an image reading device for reading an image on a microfilm.

[0002]

2. Description of the Related Art A microfilm reader printer irradiates an image projected on a microfilm set on a roll film carrier or a fish carrier with light from a light source to the microfilm through a condenser lens and transmits the microfilm. The focused light and the magnification are adjusted by a projection lens and projected and imaged on the screen or on the photoconductor of the printer drum to read an image on the screen or printed paper.

FIG. 16 is a diagram showing the basic structure of a microfilm reader printer. In this micro film reader printer, the light from the light source 7 passes through the moving condenser lens 8 and is reflected by the condenser mirror 9, passes through the fixed condenser lens 10, and passes through the micro film (or fish film) 6 set on the film carrier 5. Is irradiated. The light irradiated on the microfilm 6 passes through the microfilm 6, is focused and zoomed by the projection lens 11, and when projected on the screen 14, the scan mirror (first mirror of the printer system) 12 Is retracted to the position of b, and is guided and projected on the screen 14 by the reader system first mirror 23 and the reader system second mirror 13 which are reader system optical paths.

In the case of printing, the scan mirror 12 moves to the position a, and the light is redirected toward the printer system optical path, and the printer system second mirror 15, the printer system third mirror 16 and the printer system first mirror 16 are used. The slit 2 opened in the longitudinal direction of the printer drum by the 4 mirror 17
7 is guided to the printer drum 18, and the scan mirror 12 is rotated, so that the printer drum 18 is rotated.
Scanning light is applied to the upper photoconductor to expose a photoconductor (not shown) on the printer drum 18 to obtain a latent image, and the latent image is transferred to the transfer paper 19.

As described above, in general, the reader system optical path and the printer system optical path are provided in the same housing, and at the time of printing, the light passing through the microfilm 6 is transmitted to the photoconductor on the printer drum 18. An analog type is a type in which an image is printed by directing the light through a printer optical path and directly exposing the photosensitive body. In contrast to the analog type, there is a digital type in which an image projected on a screen is converted into an electric signal by a CCD image sensor or the like and the electric signal is supplied to a laser printer or the like to print the image.

Both the analog type and the digital type have their own unique characteristics, and under the present circumstances, both are used according to their intended use and coexist as a product.

In the case of a digital type micro film reader printer, a CCD sensor for image reading is used for automatic focusing of images (autofocus, hereinafter abbreviated as AF) and automatic exposure adjustment (hereinafter abbreviated as AE). Since it can be used as a sensor for performing, automatization such as AF and AE has progressed, and it has additional functions such as centering and masking of a print image by electrically processing an image once converted into an electric signal. There are also things. Therefore, even in the case of an analog type micro film reader printer, automatization such as AF and AE, and image processing functions such as centering and masking of a printed image are desired, and the recent trend is to downsize the device. Is desired.

In the conventional analog type micro film reader printer, in order to cope with such automation and miniaturization, sensors used for AF and AE are provided in the frame portion near the screen, in the vicinity of the printer drum and in the printer optical path. , The light transmitted through the microfilm is guided to this sensor by moving the mirror in the optical path, and the AF or AE
Have been attempted.

The sensor position for performing AF and AE with high precision is desired to be at the same position as the length of the optical path system to the screen and the printer drum, but there is an extra space near the screen and the printer drum. However, in the current situation where miniaturization is particularly required, it is difficult to secure a space for installing the sensor.

Even if the space for installing the sensor is secured, when the sensor is installed near the screen, in order to guide the light to the sensor, the AF operation for guiding the light projected on the screen onto the sensor is performed. Can no longer be directly confirmed, and it cannot be confirmed whether or not focusing is performed in the image center. Further, when the sensor is installed in the vicinity of the printer drum, there is a problem that the toner adheres to the sensor and the sensitivity thereof is lowered.

[0011]

SUMMARY OF THE INVENTION Therefore, according to the present invention, in an image reading apparatus such as an analog type micro film reader printer, AF, AE, etc. can be accurately automated, and the miniaturization and the image processing function can be performed. An object of the present invention is to provide an image reading device that achieves the demand.

[0012]

The present invention for solving the above object is as follows.

[0013]

According to the first invention of the present application, the optical path changing means and the light shielding means are integrally provided, the optical path changing means guides the optical path to the image detecting means, and the light shielding means transmits the film scanned by the scan mirror, and the printer system. A part of the image formed on the photoconductor on the printer drum by the optical path is blocked and masked to print an arbitrary image part.

The second invention of the present application is a printer system which is not used when an image is projected on a screen by guiding the light passing through the projection lens to both the reader system optical path and the printer system optical path by the optical path splitting means. By using the optical path, the optical path changing means provided in the middle of the optical path of the printer system guides the light to the image detecting means, thereby performing automatic processing such as AF and AE, and position confirmation for image processing. By the light divided into the reader system optical path, the image confirmation at the time of automatic processing can be performed.

According to the third invention of the present application, the scan mirror moving means for moving the scan mirror for switching between the reader system optical path and the printer system optical path and the reader system mirror are rotatably connected to each other. Along with the movement to the print position, the reader system mirror is pushed up to secure the printer system optical path, and the weight of the reader system mirror pushed up serves to solidify the scan mirror moving means.

[0016]

Embodiments of the present invention will be described below with reference to the accompanying drawings. It should be noted that members having the same function are denoted by the same reference numerals and the description thereof is omitted.

Embodiment 1 First, a microfilm reader printer of an embodiment to which the first invention of the present application is applied will be described.

FIG. 1 is a drawing for explaining a microfilm reader printer of an embodiment to which the first invention of the present application is applied. The optical path system in this microfilm reader printer is similar to the basic configuration of the microfilm reader printer described above, in that light from the light source 7 passes through the moving condenser lens 8, the condenser mirror 9, and the fixed condenser lens 10, and the microfilm (or fish) is used. The light that is applied to the film 6 and the microfilm 6 is transmitted through the microfilm 6, is focused and zoomed by the projection lens 11, and is projected on the screen 14, the scan mirror ( The printer first mirror 12 is retracted to the position b, and is guided and projected onto the screen 14 by the reader system first mirror 23 and the reader system second mirror 13 which are reader system optical paths.

Further, when printing, the scan mirror 12 comes to the position a, and the light is redirected toward the printer system optical path, and the printer system second mirror 15, the printer system third mirror 16 and the printer system first mirror 16 are used. The slit 27 opened in the longitudinal direction of the printer drum by the 4-mirror 17.
After being passed through the printer drum 18, the scan mirror 12 is rotated to apply scanning light to the photoconductor on the printer drum 18 to expose a photoconductor (not shown) on the printer drum 18 to a latent image. An image is obtained and this latent image is transferred to the transfer paper 19.

Further, in this microfilm reader printer, a sensor 1 such as a CCD image sensor for performing AF, AE, and image detection for masking is installed above the printer drum 18, and the printer optical path is guided. The emitted light is output by the AF optical path switch 40.
The image is detected by being guided in the direction toward the sensor 1.
Then, based on the image detection result, the focus ring provided on the projection lens 11 is moved to the focus motor 3
Is driven for focusing. This microfilm reader printer has an operation panel 4 with various operation switches on the lower front surface of the screen 14, and a projection lens has a zoom ring for adjusting magnification and a zoom ring for electrically driving the zoom ring. A motor 2 is provided.

As shown in FIG. 2, the AF optical path switching device 40 is rotatably supported by a mount 44 attached to the main body of the microfilm reader printer.
It has a curved surface portion having an arcuate cross section, and a side plate connected to the curved surface portion and pivotally supported by the mount 44. The curved surface portion has light-shielding portions 43 on both sides of the opening portion 42, and one of the light-shielding portions 43 has a fourth printer system.
A mirror 41 for returning the light reflected by the mirror 17 in the direction toward the sensor 1 is attached. A motor 45 for rotationally driving the AF optical path switching device 40 is connected to one end of the rotational shaft. By appropriately rotating the motor 45 in the forward and reverse directions, the function of changing the optical path in the direction toward the sensor 1 and the function of the shutter are performed. In other words, when functioning as a shutter,
The motor 45 is configured to rotate in the direction in which the microfilm image is scanned by the scan mirror 12.

By driving the motor 45, the AF optical path switching device 40, as shown in FIG. 3, is the first for guiding the light from the printer system fourth mirror 17 guided to the printer system optical path to the sensor 1. Position (a), a second position (b) for guiding light to the printer drum 18, and a third position (c) for blocking light.

When being held at the first and third positions (a) and (c), the light path is completely blocked, that is, the light shielding portion 43 is larger than the width of the slit 27. Second
In position (b), the light passes through the opening 42 and is held at a position where it does not interfere with the optical path. When held at the first position (a), the distance from the point d to the sensor 1 is equal to the distance to the photoconductor on the printer drum 18,
The light can be adjusted so that it always enters the sensor 1 vertically. Further, since the sensor 1 is installed facing downward and is located away from the photoconductor on the printer drum 18, it is not easily affected by dust or toner.

Next, the AF operation in the microfilm reader printer of the first embodiment will be described.

FIG. 4 is a block diagram showing a hardware configuration for performing the AF operation. To perform the AF operation, the scan mirror 12 is moved to the print position and the optical path switch 40 is moved to the first position (FIG. 3a). As a result, the light from the projection lens 11 reaches the sensor 1.

The light reaching the sensor 1 is amplified by the amplifier circuit 51, processed by the data processing circuit 52 as a signal, and passed to the main body CPU 53. Main body CPU53
Then, it is judged from the signal from the sensor 1 whether or not the focus is achieved, and at the same time, a drive command is issued to the driver 58 which is driving the focus motor 3 for driving the focus ring so that the focus is focused. Drive the focus ring.

When the contrast cannot be obtained on the sensor 1 (the light at the position of the image is not detected), the driver 56 drives the scan mirror motor 24 to scan the image. So that contrast can be obtained. If the in-focus point cannot be obtained, the AF impossible display 54 is displayed. The main CPU
In 53, the drive control of the zoom motor 2 for adjusting the magnification is also performed through the driver 58.

The flow of this AF operation will be described with reference to the flow chart shown in FIG. First, when the AF switch on the operation panel 4 is input (ON) for the AF operation (S
1), the scan mirror 12 is moved to the print position to perform the AF operation, the position of the scan mirror is confirmed by the position confirmation sensor (S2), and the optical path switching device 40 is moved to the first position (FIG. 3a). (S3). As a result, the light from the projection lens 11 reaches the sensor 1.

Then, it is judged whether or not there is contrast on the sensor 1 (S4), and if there is no contrast, image scanning by the scan mirror (S5) is performed so that the contrast can be obtained.

Next, when the contrast is obtained, it is judged whether or not the focus is in focus (S
6) Operate the focusing motor until focusing is achieved (S
7) If the focal point is reached, the AF operation is ended. If the focus ring reaches the rotation stop position while the focus motor is operating, it is determined that AF is not possible (S
8), AF impossible (S9) is displayed, and the AF operation ends.

Next, the operation when the frame erasing (masking) is performed by the optical path switching device 40 will be concretely described by taking the microfilm original shown in FIG. 6A as an example.

The light shielding of the portions indicated by D1 and D2 in FIG. 6a is performed by another shutter.
It is the portion indicated by D3 and D4 in the drawing that shields light at 0. The print image when printed without masking is shown in FIG. 6b.

When the print button on the operation panel 4 is pressed, the scan mirror 12 first moves to start the prescan. At this time, the optical path switch 40 is held at the first position (a) and guides the light to the sensor 1. After that, arithmetic processing such as masking is performed, the necessary image area and the unnecessary image area are detected, and the scanning timing of the optical path switch 40 is stored in the memory 60.

Next, the scan mirror 12 starts the main scan, and the optical path switching device 40 is rotationally scanned based on the scanning timing stored in the memory. While scanning the portion D3, the optical path switching unit 40 is kept at the first position (a) and shields the projection light. As the scanning progresses and the leading edge of the image area A is scanned, the optical path switching device 40 is rotated from the first position (a) to the second position (b) at the same speed as the scanning speed (process speed), The projection light is applied to the photoconductor on the printer drum 18. Then, the image in the image area A is written and the rear end is scanned, and at the same time, the optical path switching device 40 is rotated from the second position (b) to the third position (c) to block the projection light. In this way, the image as shown in FIG. 6c is created. Then, when a series of printing operations is completed, the optical path switch 40 is rotated and held to the first position to prevent the light from entering the photoconductor on the printer drum 18. In the first embodiment, the processing for these operations will be described with reference to FIG.
Although the hardware configuration shown in (1) is used, a dedicated device configuration may be used separately.

In the first embodiment, the case where the film image as shown in FIG. 6a is masked is shown, but as shown in FIG. 6d, when there are two images and the masking is performed between them, the opening 42 of the optical path switching device 40 is formed. The masking can be performed by increasing the number of the light-shielding portions 43 and the number of the light-shielding portions 43, and performing the same rotation operation. Although the optical path switch 40 is rotationally driven by the motor, it may be rotationally driven by using a solenoid. Further, although the tilt of the mirror 41 is adjusted, the mirror 41 may be rotationally scanned and adjusted, or the sensor 1 may be scanned to search for an effective image area. Further, although the optical path switching is performed by the rotation drive, the optical path is moved vertically, the mirror 41 is moved in the tilt direction, or the mirror 41 is moved.
A plurality of sheets may be used instead of one sheet. By using a large number of sheets, it is possible to always rotate synchronously in the same direction as the photoconductor.

Furthermore, by using the mirror 41 made of plastic, the optical path switching device 40 can be made lightweight, and the rotating operation for masking can be performed quickly.

Embodiment 2 Next, a microfilm reader printer of an embodiment to which the second invention of the present application is applied will be described.

FIG. 7 is a drawing for explaining a microfilm reader printer of an embodiment to which the second invention of the present application is applied. The basic structure of the optical path system of this microfilm reader printer is the same as that of the microfilm reader printer of the above-described first embodiment, and the description thereof will be omitted. However, in the second embodiment, a half film is provided above the projection lens 11. A mirror 21 is provided and divides the light from the projection lens 11 into a reader system optical path and a printer system optical path when performing an AF operation.

Of the light split by the half mirror 21, the light transmitted through the half mirror 21 is projected onto the screen 14 by the reader system first mirror 23 and the reader system second mirror 13. Further, the light reflected by the half mirror 21 is reflected by the AF first mirror 20,
The second mirror 22 for AF on the optical path of the printer system is guided to the optical path of the printer system by the scan mirror 12 located at the retracted position b, passes through the second printer system mirror 15, the third printer system mirror 16 and the fourth printer system mirror 17. Is guided to the sensor 1 and the AF operation is performed. The second AF mirror 22 is installed at a position where the distance from the second AF mirror 22 to the sensor 1 is the same as the distance from the second AF mirror 22 to the printer drum 18.

In order to perform an accurate AF operation, it must be performed in a portion having a high-contrast image, but in the case where a sensor is arranged around the screen such as a frame portion of the screen which has been conventionally tried, the film peripheral portion is used. Even if the AF operation cannot be performed by detecting the light in the part without an image, the uneven illuminance in the peripheral area of the image is inevitably larger than that in the central area, so accurate AF operation is ensured. There was a problem that I could not do it.

In the microfilm reader printer of the second embodiment to which the second invention of the present application is applied, the half mirror 21 is used.
Since the light necessary for the AF operation is guided by using the printer system optical path, the AF operation can be performed in the image portion with good contrast in the central portion, and at the same time, on the screen 14 during the AF operation. Since the image is projected,
It can be performed while confirming the AF operation.

If there is no high-contrast portion during AF operation, the high-contrast portion is searched for. In the second embodiment, the reader is in the middle of guiding the AF light to the printer optical path. Since the light is guided through the scan mirror 12 located at the position (retracted position) b, it is possible to search for a portion with good contrast by driving the scan mirror 12. Therefore, unlike the conventional case, it is not necessary to provide an image scanning mechanism for AF, which is required when a sensor is installed around the screen, and it is suitable for downsizing. In addition, the search operation can be performed quickly. At the time of image retrieval, the rotation operation and the zoom operation by the prism may be used together.

The half mirror 21 is arranged near the projection lens 11 to reduce the size of the entire apparatus. The size of the half mirror 14 may be set so as to cover the entire image, or may be set to the size of only the AF area. In that case, the image projected on the screen 14 has an AF area during the AF operation. Since only the portion becomes thin, it is possible to confirm where the AF area portion is. Further, since the half mirror 21 is small, it is possible to further reduce the size.

The half mirror 21 is retracted from the optical path system except during the AF operation to prevent a decrease in the amount of light on the screen 14 and during printing. This half mirror 2
The drive source for the retracting operation of No. 1 can be reduced in size and weight by downsizing the half mirror, and the cost can be reduced. Also, depending on the case, this half mirror 2
The transmittance of No. 1 may be increased and fixed near the projection lens 11.

Next, the AF operation of the micro film reader printer of the second embodiment will be described.

FIG. 8 shows a hardware configuration for performing an AF operation in the second embodiment. As shown in the figure, it is a processing system for processing a signal from the sensor 1 and performing a focusing operation. A certain amplifier circuit 51, data processing circuit 5
2 and the main body CPU 53, the respective drivers 56, 57 and 58 which are motor drive systems, and the motors 2, 3 and 24 are the same as in the first embodiment, and the AF operation itself is also the same.

The flow of the AF operation in the second embodiment is shown in FIG.
As shown in the flowchart of FIG. 1, first, when the AF switch on the operation panel 4 is input (ON) for the AF operation (S1), the scan mirror 12 is moved to the reader position b, and the scan mirror is moved by the position confirmation sensor. Is confirmed, and the second AF mirror 22 is moved to a position for AF operation (S2). Then, the half mirror 21
Is moved onto the projection lens 11 (S3). As a result, the light from the projection lens 11 reaches the sensor 1.

Next, it is judged whether or not there is contrast on the sensor 1 (S4), and if there is no contrast, image scanning by the scan mirror 12 (S5) is performed so that contrast can be obtained.

Next, when the contrast is obtained, it is judged whether or not the focus is in focus (S
6) Operate the focusing motor until focusing is achieved (S
7) When the focal point is reached, the half mirror 21 is retracted (S8), and the AF operation is ended. If the focus ring reaches the rotation stop position during the operation of the focus motor, it is determined that AF is impossible (S9), and AF is performed.
Impossible is displayed (S10), and the AF operation ends.

Embodiment 3 Next, a microfilm reader printer of an embodiment to which the third invention of the present application is applied will be described.

FIG. 10 is a view for explaining a microfilm reader printer of an embodiment to which the third invention of the present application is applied. The basic configuration of the optical path system of this microfilm reader printer is the same as the above-described first and second embodiments.
In the third embodiment, the reader system second mirror 13 forming an optical path of the reader system forms an image on the screen 1 in the same manner as in the first embodiment.
When the image is projected onto the image forming device 4, the reader system optical path is formed at the position c, and at the time of printing, the scan mirror 12 that has come to the print position a pushes up the reader system second mirror 13 to the position d, thereby making the printer system. It is designed to secure the optical path. Further, an image adjuster 25 is provided which operates the second printer system mirror 15 and the third printer system mirror 16 in conjunction with each other to adjust the image position during printing.

As described above, the miniaturization of the apparatus is an effective measure especially for reducing the height of the screen of the table top type micro film reader printer. However, even though the inside of the device cannot occupy a lot of space due to miniaturization, a mechanism for pushing up the reader system mirror must be provided.

Regarding the movement of the scan mirror, the stop position may become unstable due to backlash of the moving system, a gap between the guide members, etc. when the scan mirror is stopped at the print position a. If the image is scanned (the rotation of the mirror) in (2), the synchronization may be lost. As a countermeasure, in the conventional apparatus, it is considered that a unit for moving the scan mirror is fixed so as to surely stop at the printer position a by using a solenoid or the like. , A more complicated fixing mechanism must be installed in a small space,
There was also a problem that could be a factor in increasing costs.

In the microfilm reader printer of the third embodiment, the position of the scan mirror 12 itself is fixed by the weight of the reader system second mirror 13 pushed up by the scan mirror 12 which has reached the print position a.

Specifically, as shown in FIG. 11, the support shaft 7
The reader system second mirror 13 and the scan mirror unit 70 (scan mirror 12 and drive motor 24), which are rotatably supported on the main body side of the microfilm reader printer 1 by the lever 1, are rotated by the lever 74 to the rotation shaft 72 and the lever support portion. It is rotatably connected by 73.

The scan mirror unit 70 is
When the moving motor 26 is driven, the wire 30 is moved on the guide member 31 by the wire 30 to print position a and reader position b.
Move between.

When the scan mirror unit 70 is at the reader position b, the reader system second mirror 13 is in a lowered state as shown in FIG.

When the scan mirror unit 70 is at the print position a, the scan mirror unit 70 moves from the reader position b to the print position a as shown in FIG.
3 is pushed up. When the print position a is reached, the lever 74 moves the scan mirror unit 7
It is stopped by the stopper 75 directed to the vicinity of the lever support portion 73 of 0, and the second reader system mirror 13 is raised.

When the leader system second mirror 13 is raised, the lever 74 is attached to the leader system second mirror 1.
Due to the weight of 3, the downward force F is applied, and a part of the downward force F is transmitted to the scan mirror unit 70 by the lever 74, and the scan mirror unit 70.
A vertical downward force Fcos θ cos θ and a horizontal force F cos θ sin θ are applied to.

The vertical downward force Fcos θ cos θ eliminates instability due to the gap with the guide member 31, and the horizontal force F cos θ sin θ prevents backlash of the scan mirror unit 70.

In this state, since the scan mirror 12 is rotated to perform image scanning, it is possible to print without causing a problem such as synchronization deviation.

Next, the print image adjuster 25 provided in the third embodiment will be described.

In the image adjuster 25, the edge of the printed image may be missing or the image may be unevenly printed on one side of the paper due to misalignment when the microfilm is set when printing the image. Is for adjusting so that the image is printed on the central portion of the paper.

Conventionally, such an image shift at the time of printing is checked by the image projected on the screen to see if the image is protruding from the key frame in the screen. , The printed image is missing or biased, so while watching the image on the screen, move the set microfilm,
I adjusted the image so that it came to the center of the key frame.

However, such a work is troublesome because the moving direction of the image on the screen is different from the moving direction of the microfilm, and conventionally, such a work is performed without performing such a manual work. Attempts have been made to center the image on the paper. As one of them, there is a known method of adjusting the image position by checking the image position with a sensor and moving a part of the optical system, but when a part of the optical system is moved, the optical axis tilts. There is a problem in that the image shifts and is moved to the central portion, and at the same time, one-sided blurring of the image occurs.

Therefore, in the third embodiment, in order to eliminate this inconvenience, the image adjuster 25 in which the optical axis is shifted but one-sided blur does not occur by moving the image by interlocking a plurality of mirrors and changing the angle. Was set up.

FIG. 14 is a block diagram showing the print image adjuster 25 and the hardware configuration for image adjustment.

The print image adjuster 25 portion includes a printer system second mirror 15 and a printer system third mirror 16 which are supported in parallel by a case 80, and the case 8
Printer system second mirror 15 and printer system third
It is composed of a motor 81 and a gear 82 for rotating the mirror 16. The printer system second mirror 15 and the printer system third mirror 16 are integrally rotatable about a line connecting the optical axis centers of the respective mirrors.

To adjust the image position, first, when the scan mirror 12 comes to the print position a and the preliminary scan is performed, the optical path is changed by the second AF mirror 22 toward the sensor 1, and the sensor 1 is moved. Scan mirror 12
The scanning light is imaged. The light imaged by this sensor 1 is
The data is amplified by the amplifier circuit 51, processed by the data processing circuit 52, and the main body CPU 53 confirms the image position. Calculate the position adjustment amount from this image position,
The motor 59 is driven by the driver 59, and the printer second mirror 15 and the printer third mirror 16 are integrally rotated via the gear 82 to adjust the position of the image.

After the image position adjustment, the main scan is performed and A
The second F mirror 22 retracts and prints the image whose image position has been moved.

FIG. 15 is a schematic diagram showing the optical path at the time of adjusting the image position. As shown in the figure, the light reflected by the scan mirror 12 (line aa) is the second printer system at the normal position. It is reflected by the mirror 15 (b-b line) and the printer system third mirror 16 (c-c line), and is further reflected by the printer system fourth mirror (d-d line) to be a photoconductor on the printer drum 18. Form an image. The optical path in this state is shown by the solid line.

When the second printer system mirror 15 (line bb) and the third printer system mirror 16 (line cc) are rotated, reflection (b'-b ') on the second printer system mirror 15 is caused.
Line) shifts the optical axis, and the printer system third mirror 16
(C'-c 'line) and reflected by the printer system fourth mirror (d-d line), the image position shifts in the printer drum longitudinal direction to form an image on the photoconductor on the printer drum 18.
The optical path in this state is shown by the alternate long and short dash line.

[0073]

As described above, according to the first aspect of the present invention, the image detecting means can be installed at the optical path length equivalent to that of the printer or the screen, and the mechanism for masking the image. By providing the above, it is possible to omit the processing mechanism therefor.

Further, according to the second invention of the present application, AF and AE
Or, when performing automatic processing such as image processing, it is possible to display the image on the screen at the same time and check the image being processed automatically. Also, use a scan mirror when searching for images for automatic processing. By doing so, an image search can be performed without providing a special image search mechanism.

Further, according to the third invention of the present application, it is possible to surely stop the scan mirror at the stop position when printing an image, a fixing device for that is not required, and stable image scanning is performed. Will be possible.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a microfilm reader printer according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of an AF optical path switching device of the microfilm reader printer according to the first embodiment of the present invention.

FIG. 3 is a diagram for explaining the operation of the AF optical path switching device of the microfilm reader printer according to the first embodiment of the present invention.

FIG. 4 is a block diagram showing a hardware configuration for performing an AF operation in the microfilm reader printer according to the first embodiment of the present invention.

FIG. 5 is a flowchart illustrating a flow of an AF operation of the microfilm reader printer according to the first embodiment of the present invention.

FIG. 6 is a diagram illustrating masking.

FIG. 7 is a diagram illustrating a microfilm reader printer according to a second embodiment of the present invention.

FIG. 8 is a block diagram showing a hardware configuration for performing an AF operation in a microfilm reader printer according to a second embodiment of the present invention.

FIG. 9 is a flowchart for explaining the flow of AF operation of the microfilm reader printer of the second embodiment to which the present invention is applied.

FIG. 10 is a diagram illustrating a microfilm reader printer according to a third embodiment of the present invention.

FIG. 11 is a perspective view illustrating a scan unit portion of a microfilm reader printer according to a third embodiment of the present invention.

FIG. 12 is a side view for explaining the operation of the scan unit of the microfilm reader printer according to the third embodiment of the present invention.

FIG. 13 is a side view for explaining the operation of the scan unit of the microfilm reader printer according to the third embodiment of the present invention.

FIG. 14 is a diagram illustrating an image adjuster provided in a microfilm reader printer according to a third embodiment of the present invention.

FIG. 15 is a diagram for explaining an optical path change by the image adjuster of the microfilm reader printer according to the third embodiment of the present invention.

FIG. 16 is a diagram illustrating a conventional microfilm reader printer.

[Explanation of symbols]

1 ... Sensor, 2, 3, 2
4, 26, 81 ... Motor, 6 ... Film,
7 ... Light source, 8 ... Moving condenser lens,
9 ... Condenser mirror, 10 ... Fixed condenser lens, 11 ... Projection lens, 12 ... Scan mirror, 13 ... Reader system second mirror, 14 ... Screen, 15 ... Printer system second mirror, 16 ... Printer system third mirror,
17 ... Printer system fourth mirror, 18 ... Printer drum, 20 ... AF system first mirror, 2
1 ... Half mirror, 22 ... AF system second mirror, 23 ... Reader system second mirror, 2
5 ... Image adjuster, 27 ... Slit,
40 ... Optical path switching device, 42 ... Opening part,
43 ... Shading part, 51 ... Amplifier circuit,
52 ... Data processing circuit, 53 ... Main body C
PU, 59 ... Driver, 60 ... Memory, 70 ... Scanner unit, 71 ... Spindle, 72, 7
3 ... rotary shaft, 74 ... lever,
75 ... Stopper, 80 ... Case,
82 ... Gear.

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[Procedure amendment]

[Submission date] August 27, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction content]

[0012]

SUMMARY OF THE INVENTION The present invention for solving the above-mentioned problems is a reader system including a plurality of mirrors.
Light source that has an optical path and a printer system optical path and that passes through the film
From the light is guided to the screen by the optical path of the reader system.
Project the image of the film onto the screen,
In addition, by the light guided through the optical path of the printer system, the film
Image reading device that prints images of
Image detecting means for detecting an image of Rum, and the printer system
Change the optical path in the optical path in the direction toward the image detecting means.
Optical path changing means for blocking the light in the printer system optical path
An image characterized by an optical path changing light-shielding means integrated with an optical means.
It is an image reading device. In addition, a book to solve the above purpose
The invention is a reader optical path composed of a plurality of mirrors.
And the printer system optical path, from the light source that has passed through the film
Light is guided onto the screen by the optical path of the reader system.
Image of the film onto the screen,
In addition, the film guided by the light guided through the printer optical path
In an image reading device that prints an image,
An image detecting means for detecting the beam image transmitted through a serial film
The light from the light source from the reader system and the printer system.
Optical path splitting means for splitting into two paths, and the optical path splitting means
Of the optical paths split by the means to the printer optical path
The optical path changing means for guiding the emitted light to the image detecting means.
An image reading device characterized by the above. Furthermore, above
The present invention for solving the object has a plurality of mirrors.
It has a reader optical path and a printer optical path
However, switching between the optical path of the reader system and the optical path of the printer system is
Scan mirror moving means for scanning the image
The scan mirror is made by moving
By moving the slider to the predetermined first position,
The light from the light source that has passed through the
The image of the film is projected on the screen by directing it to the optical path
Shadow, while moving the scan mirror to a predetermined second position
By moving, it passes through the film and through the projection lens.
Light from a different light source is guided to the optical path of the printer system.
In the image reading device for printing the image of RUM,
Scanning a part of the reader system mirror via connecting means
The scan mirror is rotatably connected to a mirror moving means,
Is moved to the second position by the connecting means.
Then, push up a part of the reader mirror to the printer.
The reader system mirror is pushed up while securing the optical path of the system.
The position of the scanning mirror moving means is fixed by the weight of the
The image reading device is characterized by performing the following.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0053

[Correction method] Change

[Correction content]

Regarding the movement of the scan mirror, the stop position may become unstable due to backlash of the moving system, a gap between the guide members, etc. when the scan mirror is stopped at the print position a. If the image is scanned (the rotation of the mirror) in (2), it causes a delay. As a countermeasure, the conventional device uses a solenoid etc.
The unit for moving the scan mirror is set at the printer position a.
It is considered to fix it so that it will surely stop, but when using a solenoid etc., a more complicated fixing mechanism must be installed in a small space, and it also causes a cost increase. there was a problem was Tsu trough that could be.

Claims (3)

[Claims] 1. A screen having a reader system optical path and a printer system optical path composed of a plurality of mirrors, wherein light from a light source that has passed through a film is guided to the screen by the reader system optical path to display an image on the film. Project on,
Further, in an image reading apparatus for printing an image on the film by light guided through a printer optical path, an image detecting means for detecting the image on the film, and a direction toward the image detecting means in the optical path for the printer. An image reading apparatus comprising: an optical path changing means for changing an optical path to a light path; and an optical path changing and shielding means which integrates a light shielding means for shielding light of the printer system optical path. 2. A reader system optical path and a printer system optical path constituted by a plurality of mirrors, wherein light from a light source that has passed through the film is guided onto the screen by the reader system optical path, and an image on the film is displayed on the screen. Project on,
Further, in an image reading apparatus that prints an image of the film by light guided through a printer optical path, an image detection unit that detects the film image, and light from a light source that has passed through the film is read by the reader optical path. An optical path splitting means for splitting the printer optical path into two, and an optical path changing means for guiding the light guided to the printer optical path among the optical paths split by the optical path splitting means to the image detecting means. Characteristic image reading device. 3. A scan mirror moving means for moving a scan mirror which has a reader system optical path and a printer system optical path, each of which is constituted by a plurality of mirrors, and which switches the reader system optical path and the printer system optical path to scan an image. By moving the scan mirror to a predetermined first position, the light from the light source that has passed through the film and passed through the projection lens is guided to the optical path of the reader system to project the image of the film on the screen. On the other hand, by moving the scan mirror to a predetermined second position, an image reading apparatus that guides the light from the light source that has passed through the film and passed through the projection lens to the printer system optical path to print the image on the film , A part of the reader system mirror is rotatably connected to the scan mirror moving means through a connecting means. When the scan mirror is moved to the second position, a part of the reader system mirror is pushed up by the connecting means to secure a printer system optical path, and the scan is performed by the weight of the pushed up reader system mirror. An image reading apparatus characterized in that the position of a mirror moving means is fixed.