JPH0926627A - Exposure method and photographic printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable large-size printing by suppressing the magnifying ratio of a picture displayed on a liquid crystal panel as small as possible. SOLUTION: At the time of executing the large-size printing, the liquid crystal panel 31 is turned by 90 deg. from a posture for standard printing and the picture for the large-size printing is displayed on a picture display surface 31A, so as to make the longitudinal direction of the picture for the large-size printing coincident with that of the picture display surface 31A. Thus, the reducing ratio of the displayed picture is suppressed, the magnifying ratio when the image of the displayed picture for the large-size printing is formed on a photographic printing paper is suppressed as small as possible and further, an image exposure can be executed on the photographic printing paper.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exposure method and a photographic printer, and more particularly to displaying an image on a liquid crystal panel having an image display surface with an aspect ratio other than 1: 1 and using the displayed image as a photosensitive material. The present invention relates to an exposure method for exposing and a photographic printer provided with an exposure unit for displaying an image on a liquid crystal panel set to a predetermined aspect ratio and exposing the photosensitive material.

[0002]

2. Description of the Related Art Conventionally, there is known an index print in which each frame is arranged in a matrix form and reduced and printed so that it is possible to easily search what kind of photograph is taken on one developed negative film. In this index print, in a photographic printer, the image data of each frame of negative film read by a predetermined scanner is stored in a predetermined image memory, and the image data of several frames is read from the image memory at a predetermined timing and the liquid crystal is displayed. It is produced by displaying on a panel, exposing the displayed images of several frames on photographic paper, and processing.

Further, similar to the above-described index print production, the image data of the frame to be printed is read out from the image data of each frame of the negative film stored in the predetermined image memory and displayed on the liquid crystal panel. A so-called liquid crystal photographic printer has been proposed in which a print is produced by exposing and processing a displayed image on a printing paper. In such a liquid crystal photographic printer, in order to produce a main print of a predetermined stretched size, the entire image of the frame to be printed is displayed on the liquid crystal panel, and the displayed image is formed on the photographic paper at a predetermined enlargement ratio. Then, the formed image is exposed on photographic paper.

By the way, in recent years, enlargement sizes of photographs have been diversified. For example, in general 35mm negative film, panorama size (aspect ratio 10: 3.5), powerful wide size (aspect ratio 16: 9), etc. are used in addition to the standard size. A so-called large size print, which is a large size print (hereinafter, referred to as a large size), is widely used.

[0005]

However, even if the enlargement size of the photograph is diversified as described above, the aspect ratio of the liquid crystal panel displaying the image to be exposed is generally set in accordance with the aspect ratio of the standard size. Has been done,
As shown in FIG. 4B, in the standard size image displayed on the liquid crystal panel 31, the long side direction (arrow A direction) of the image matches the width direction (arrow B direction) of the printing paper 54. ,
The printing paper 54 is exposed. On the other hand, when exposing a large size image, it is necessary to match the long side direction of the image with the long side direction (conveying direction) of the printing paper, and therefore, as shown in FIG. The image is displayed so that the long side direction of the image matches the short side direction of the liquid crystal panel.

As is clear from the example shown in FIG. 3 (A), when large-sized printing is performed, the liquid crystal panel has many portions where no image is displayed, resulting in poor utilization efficiency of the liquid crystal panel. Will result in a much smaller image. Therefore, when the image displayed on the liquid crystal panel is imaged on the photographic paper, the enlargement ratio increases, and there is a possibility that an image with coarse pixels is exposed on the photographic paper.

In view of the above facts, an object of the present invention is to provide a photographic printer capable of performing large size printing while minimizing the enlargement ratio of the image displayed on the liquid crystal panel.

[0008]

In order to achieve the above-mentioned object, the invention according to claim 1 of the present invention displays an image on a liquid crystal panel whose aspect ratio of the image display surface is other than 1: 1. An exposure method for exposing a displayed image on a photosensitive material, wherein the long side of the image displayed on the image display surface of the liquid crystal panel is parallel to the long side of the image display surface before the image is displayed on the liquid crystal panel. And the relative position around the central axis perpendicular to each of the image display surface and the image displayed on the image display surface is set so that the short side of the image is parallel to the short side of the image display surface. It is characterized by that.

According to the first aspect of the invention, when an image is displayed on the liquid crystal panel, for example, as shown in FIG. 3B, the long side of the image displayed on the image display surface is the long side of the image display surface. Since the short side of the image is parallel to the short side of the image display surface, the reduction ratio of the displayed image can be suppressed. Therefore, it is possible to carry out large-sized printing while minimizing the enlargement ratio when the image displayed on the liquid crystal panel is formed on the photosensitive material.

The invention according to claim 2 is a photographic printer having an exposure unit for displaying an image on a liquid crystal panel set to a predetermined aspect ratio and exposing the photosensitive material,
When the liquid crystal panel is rotated around a central axis perpendicular to the image display surface, and the aspect ratio of the image is different from the predetermined aspect ratio, the long side of the image is the long side of the image display surface. The rotation so that the liquid crystal panel is rotated by 90 degrees from the state when the image having the predetermined aspect ratio is displayed so that the liquid crystal panel is parallel and the short side of the image is parallel to the short side of the image display surface. And a control means for controlling the driving means.

According to the second aspect of the invention, when an image having an aspect ratio different from a predetermined aspect ratio is exposed,
The control means controls the liquid crystal panel so that the long side of the image is parallel to the long side of the image display surface and the short side of the image is parallel to the short side of the image display surface. The rotation driving means is controlled so as to rotate 90 degrees from the display state. As a result, the liquid crystal panel is rotated by 90 degrees about the central axis perpendicular to the image display surface by the rotation driving means, and the image has the long side of the image parallel to the long side of the image display surface. Is exposed and exposed on the liquid crystal panel so that the short side of the image is parallel to the short side of the image display surface.

For example, when displaying an image of a panoramic size or a powerful wide size (that is, a large size) whose aspect ratio is different from the standard print size on a liquid crystal panel set to the aspect ratio of the standard print size, FIG. )
As shown in, the long side of the image displayed on the image display surface is parallel to the long side of the image display surface, and the short side of the image is parallel to the short side of the image display surface.

Therefore, the reduction ratio of the image displayed on the liquid crystal panel can be suppressed, and the enlargement ratio at the time of forming the image on the photosensitive material can be suppressed to the minimum so that the large size printing can be performed.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

The configuration of the printer processor 10 in this embodiment will be described with reference to FIGS. 1 and 2. The printer processor 10 whose outside is covered with a casing 12 performs a process of developing, fixing, rinsing, and drying a printer unit 58 that exposes the printing paper of the main print and the sub-print, and the exposed printing paper. And a processor unit 72.

First, the structure of the printer unit 58 will be described.
A work table 14 protruding from the casing 12 to the left in FIG. 1 is installed in the printer processor 10, and a negative film 16 is provided on the upper surface of the work table 14.
There are arranged a negative carrier 18 for setting and a keyboard 15 for the operator to input commands, data and the like.

A main exposure light source section 36 is installed below the work table 14. A light source 38 is installed in the main exposure light source section 36, and the light emitted from the light source 38 is
Color correction filter (hereinafter, Color-Correction Filter: C
The negative film 16 set on the negative carrier 18 is reached via a C filter 40) and a diffusion tube 42.
The CC filter 40 has C (cyan), M (magenta), Y
It is composed of three sets of (yellow) filters, and each filter operates under the control of the CC filter control unit 39,
The light emitted from the light source 38 can appear and disappear on the optical axis.

An arm 44 is formed on the downstream side of the negative carrier 18 (upper side in FIG. 1).
A main exposure optical system 46 and a sub-printing section 22 that exposes sub-prints such as index prints are provided therein.

A half mirror 43 is arranged at the lowermost part of the main exposure optical system 46, and the light transmitted through the negative film 16 set on the negative carrier 18 reaches it. An exposure lens 48 for changing the magnification of an image to be exposed and a black shutter 50 for blocking the exposure light are sequentially arranged on the downstream side of the optical path passing through the half mirror 43. A mirror 51 that reflects the exposure light in a substantially right-angled direction is arranged on the downstream side of the black shutter 50, and the exposure light reflected by the mirror 51 is applied to a photographic printing paper 54 set in an exposure chamber 52. The photographic paper 54 is thus exposed.

On the other hand, a photometric lens 45 for changing the magnification of the photometric image is arranged on the downstream side of the optical path reflected by the half mirror 43. A mirror 47 is arranged. A scanner 108 composed of an image sensor or the like is arranged in the direction in which light is reflected by the half mirror 47.
The scanner 108 is connected to an image signal processing unit 102 that performs predetermined image processing on the image data of each frame of the negative film 16 read by the scanner 108.

A simulator 104 as an image display device is connected to the image signal processing unit 102, and the simulator 104 is used in the case where the image of each frame of the negative film 16 is produced based on the set conditions. A print simulation image is displayed.

An image memory 106 for storing image data is connected to the image signal processing unit 102, and the image signal processing unit 102 stores the image data of each frame of the negative film 16 read by the scanner 108. It is stored in the image memory 106.

A negative density measuring section 56 for measuring the image density of each frame of the negative film 16 is provided on the downstream side of the optical path passing through the half mirror 47, and the negative density measuring section 56 has an image sensor. Scanner 56B composed of the like and the negative film 1 read by the scanner 56B
Negative density measuring device 56A for measuring the image density of each frame of 6
And are installed.

In the sub-printing section 22, a light emitting diode (hereinafter referred to as B-LED) 25 for emitting a blue component of light and a light emitting diode for emitting a red component (hereinafter referred to as R-) are used as light sources for exposure of the index print. Called LED)
26, and a light emitting diode that emits a green component (hereinafter,
A G-LED) 27 is provided, and the operation of these is controlled by the light source controller 24. B-LED2
5 is arranged on the exposure optical axis X, a dichroic mirror 28 is arranged on the downstream side in the traveling direction of the light emitted from the B-LED 25, and the optical axis of the red light emitted from the R-LED 26, and The optical axis of the green light emitted from the G-LED 27 is aligned with the exposure optical axis X.

On the downstream side of the dichroic mirror 28 in the light traveling direction, the end of the optical path (a position that does not affect the image)
A light source light sensor 29 for measuring the light amount of the light emitted from the light source is arranged in the direction in which the mirror 30 reflects light.

On the downstream side of the arrangement position of the mirror 30,
The liquid crystal panel 31 is arranged on a surface perpendicular to the exposure optical axis X. The image display surface 31A of the liquid crystal panel 31 (see FIG.
In (A), a large number of pixels capable of displaying white, black, and intermediate colors thereof are regularly arranged by electric means, and the liquid crystal panel 31 expresses 256 gradations. It is possible. On the liquid crystal panel 31,
A liquid crystal panel driver 32 that drives image display on the liquid crystal panel 31 is connected, and the liquid crystal panel driver 32 is connected to a sub control unit 23 that monitors and controls various processing states in the sub printing unit 22.

The liquid crystal panel 31 has an image display surface 31.
The liquid crystal panel 31 is rotatably supported around the center point P of A (see FIG. 3A) in the arrow Q direction and the opposite direction. A rotation drive unit 122 that rotates in the opposite direction is connected.

Here, the structure of the rotation drive unit 122 will be described with reference to FIG. The rotation driving unit 122 includes the liquid crystal panel 3
1, a support plate 122G having a substantially donut shape for supporting the liquid crystal panel 1, and the liquid crystal panel 31 and the support plate 122 fixed to the support plate 122G.
And a roller 122F having a substantially donut plate shape that rotates about the center point P together with G.
A roller 122E for rotationally driving the roller 122F and a plurality of rollers 122J for guiding the roller 122F so that the rotation axis does not shift when the roller 122F rotates are provided on the outer periphery of the 2F. Roller 122
One end of a belt 122D is wound around E, and the other end of the belt 122D is wound around a motor 122C. The drive control unit 122A is connected to the motor 122C, and the sub control unit 23 is connected to the drive control unit 122A. The sub-control unit 23 is a CPU, RA (not shown).
M, ROM, an input / output controller, etc., and drives the motor 122C by transmitting a predetermined control signal to the drive control unit 122A, so that the motor 122C, the belt 122D, the roller 122E, and the roller 122F rotate in order. It has a function of transmitting and rotating the liquid crystal panel 31 in the direction of arrow Q and in the opposite direction.

Further, on the outer periphery of the support plate 122G, two cutouts 12 are formed at 90 ° apart from the center point P.
2H and 122I are provided, and a sensor 122B for detecting these notches 122H and 122I is installed near the outer periphery of the support plate 122G. As shown in FIG. 8, when the sensor 122B detects the cutout portion 122H, it corresponds to when the liquid crystal panel 31 has the posture shown in FIG. 3B (the posture for large-size printing described later).
The case where the sensor 122B detects the cutout portion 122I corresponds to the case where the liquid crystal panel 31 has the posture shown in FIG. 3A (the posture for standard size printing described later). A drive controller 122A is connected to the sensor 122B,
When detecting the notch, the sensor 122B sends a predetermined detection signal to the drive controller 122A. Drive controller 12
By receiving this detection signal, 2A can detect that the liquid crystal panel 31 is in the posture for standard size printing or the posture for large size printing.

The image display surface 31A of the liquid crystal panel 31 (see FIG.
The aspect ratio (see (A)) is set to the same value as the aspect ratio of the standard size of photographic prints. Therefore, when producing a photographic print such as a panoramic size or a powerful wide size (performing a large size print), the sub control unit 23 causes the liquid crystal panel 31 to move from the posture for standard size print shown in FIG. Rotate 90 degrees in the direction of arrow Q to make it the posture for large size printing shown in FIG.
Furthermore, a large-sized print image is displayed on the liquid crystal panel 31.
It has a function of displaying so that the long side direction thereof coincides with the long side direction of the image display surface 31A. In addition, the sub-control unit 23
After the exposure of the image of the large size print displayed on the liquid crystal panel 31 is completed, the liquid crystal panel 31 is rotated 90 degrees in the direction opposite to the arrow Q direction, and the attitude for the standard size print shown in FIG. It also has a function to return to.

The sub controller 23 is also connected to the image memory 106 described above via an input / output controller.
The sub control unit 23 reads out the image data of each frame of the negative film 16 stored in the image memory 106, forms one piece of index image data in which the frame images are arranged according to a predetermined rule, and forms one piece of the formed index. An image corresponding to image data of a predetermined number of frames of the image data, for example, five frames (one column) is displayed on the liquid crystal panel 31 by the liquid crystal panel driver 32. In addition, an image corresponding to the image data of each color component of R color, G color, and B color among the image data for one column is displayed on the liquid crystal panel 31.
Can also be displayed.

On the downstream side of the position where the liquid crystal panel 31 is arranged, a mirror 34 is provided at the end of the optical path (a position that does not affect the image).
Is disposed, and a transmitted light amount sensor 33 for measuring the amount of light transmitted through the liquid crystal panel 31 is disposed in the direction in which light is reflected by the mirror 34.

On the downstream side of the arrangement position of the mirror 34,
An exposure lens 35 for changing the magnification of the image of the sub-print to be exposed is arranged, and an index print image displayed on the liquid crystal panel 31 by the exposure lens 35 and projected by exposure light is provided on a photographic paper 54 by a predetermined amount. An image is formed at a magnification.

Further, the light source control unit 24, the light source light amount sensor 29, and the transmitted light amount sensor 33 described above are further connected to the sub control unit 23, and the sub control unit 23 measures the R measured by the light source light amount sensor 29. , G, and B, the appropriate light amount correction amount is calculated based on the light amount values, and the B-LED 25,
The light source control unit 24 corrects the amount of light emitted from the R-LED 26 and the G-LED 27. Similarly, the sub-control unit 23 controls the liquid crystal panel driver 32 based on the transmitted light amount value measured by the transmitted light amount sensor 33 to adjust the density of the image displayed on the liquid crystal panel 31 so as to obtain an appropriate transmitted light amount. I do.

Like the sub-control unit 23, the main control unit 20 for controlling and monitoring the entire printer processor 10 is provided.
Is provided below the exposure chamber 52. The main control unit 20 includes a CPU (not shown), a RAM, a ROM, an input / output controller, and the like. The main control unit 20 includes:
The above-described CC filter control unit 39 and the negative density measuring device 56
A, the image signal processing unit 102 and the sub control unit 23 are connected, and monitor and control the operation of each of these components.

A mounting portion 60 is provided at a corner portion between the upper right side surface of the arm 44 and the upper surface of the casing 12, and the mounting portion 60 is a paper for accommodating the photographic printing paper 54 wound in layers on a reel 62. The magazine 64 is mounted.

A roller pair 66 is disposed near the mounting portion 60, and holds the photographic printing paper 54 in a horizontal state to expose the exposure chamber 52.
Transport to The photographic paper 54 is placed on the roller 6 before the arm 44.
It is wound around 7, turned 90 degrees, and hangs down. A first stock unit 69 is provided between the roller 66 and the roller 67 to guide and stock the photographic paper in a substantially U-shape.

A roller 68 is provided below the exposure section of the exposure chamber 52.
A, 68B, and 68C are arranged, and the printing paper 54 on which the image of the negative film 16 is printed in the exposure chamber 52 is turned by approximately 90 degrees by each of the rollers 68A, 68B, and 68C, and is turned to a processor unit 72 described later. Conveyed.

A cutter 71 is arranged on the downstream side of the roller 68A, and the cutter 71 cuts the rear end of the photographic printing paper 54 after the exposure processing. The printing paper 54 that has been cut by the cutter 71 and left in the exposure chamber 52 can be rewound into the paper magazine 64 again. Also, the roller 68
A between the printing paper 54 and the roller 68B.
There is provided a second stock portion 73 for guiding and stocking in a substantially U shape. In the second stock unit 73,
By stocking the printing paper 54, the printer unit 58
And the difference in processing time between the processor unit 72 and the processor unit 72 is absorbed.

Next, the configuration of the processor section 72 will be described. The processor section 72 is provided with a color developing processing tank 74 storing a color developing processing liquid, a bleach-fixing processing tank 76 storing a bleach-fixing processing liquid, and a plurality of rinsing processing tanks 78 storing a washing processing liquid. The photographic printing paper 54 is sequentially transported through the color developing tank 74, the bleach-fixing tank 76, and the plurality of rinsing tanks 78, so that the developing, fixing, and rinsing processes are sequentially performed. Photographic paper 54 that has been washed
Is transported to the drying section 80 adjacent to the rinsing tank 78,
In the drying section 80, the photographic paper 54 is wound around rollers and exposed to high-temperature air to be dried.

The photographic printing paper 54 is nipped by a pair of rollers (not shown), and is discharged from the drying section 80 at a constant speed after the completion of the drying process. A cutter unit 84 is provided on the downstream side of the drying unit 80, and the cutter unit 84 has a cut mark sensor 86 for detecting a cut mark applied to the photographic printing paper 54.
A paper density measuring unit 90 for measuring the density of the printing paper 54 and a cutter 88 for cutting the printing paper 54 are installed. The cut mark sensor 86, the paper density measuring unit 90, and the cutter 88 are respectively the main control unit 20.
It is connected to the. In the cutter unit 84, the photographic printing paper 54 is cut by the cutter 88 for each image frame, and the photographic print is completed.

The completed photographic prints are discharged to the sorter unit 92, sorted in the sorter unit 92, and a predetermined verification work is performed. By this verification work, after defective prints such as so-called out-of-focus images are extracted, normal photographic prints are returned to the customer together with the negative film.

Next, the operation of this embodiment will be described. First, the exposure process of the main print in the printer unit 58 of the printer processor 10 will be described. With the black shutter 50 closed, the negative film 16 on which the image to be printed is recorded is set on the negative carrier 18, the light source 38 is turned on, and the image of the negative film 16 formed by the light transmitted through the negative film 16 is displayed. The density is measured by the negative density measuring unit 56. Based on the measured image density of the negative film 16, the main control unit 20 sets appropriate exposure conditions (for example, the amount of each filter of the filter unit 40 inserted). Next, the black shutter 50 is opened, and the image on the negative film 16 is exposed on the photographic printing paper 54 based on the set exposure conditions.

Next, as the exposure process of the sub print in the printer unit 58, a case where the sub print unit 22 exposes a frame image similar to the main print will be described.
The negative film 16 on which the image to be printed is recorded is set on the negative carrier 18, the light source 38 is turned on, and the negative film 1 is imaged by the light transmitted through the negative film 16.
The image 6 is read by the scanner 108, and the read image data is read by the image signal processing unit 102.
6 is stored. By the sub-control unit 23, the image memory 106
The image data is read from the image data, the image corresponding to the blue image is displayed on the liquid crystal panel 31, and the B-LED 25 is turned on so that the blue component of the image data (hereinafter referred to as the blue image) is formed on the photographic paper 54. The light is turned on for a time corresponding to the set exposure conditions. Thus, the photographic paper 54 is exposed to the blue image of the image data. Thereafter, similarly, the red component (red image) and the green component (green image) of the image data are displayed on the liquid crystal panel 31, and the R-LED 2 is displayed.
6. The G-LED 27 is turned on to expose the red and green images of the image data on the photographic printing paper 54. As a result, the image to be printed is exposed on the photographic printing paper 54.

Next, the processing in the processor section 72 will be described. After the image to be printed is exposed on the printing paper 54 as described above, the printing paper 54 is processed by the processor unit 72.
The color developing processing tank 74, the bleach-fixing processing tank 76, and the plurality of rinsing processing tanks 78 are sequentially conveyed, so that the developing, fixing, and washing processes are sequentially performed on the printing paper 54.
The photographic printing paper 54 that has been washed with water is conveyed to the drying unit 80 and is dried with high temperature air. The dried photographic printing paper 54 is conveyed to the cutter unit 84, cut by the cutter 88 for each image frame, and becomes a photographic print. Then, the photographic prints are discharged to the sorter unit 90 and sorted in the sorter unit 90.

Now, as the operation according to the present invention,
An example of performing large size printing in the sub printing unit 22 will be described. The image data to be printed is stored in the image memory 106 in advance according to the above procedure, and the attitude of the liquid crystal panel 31 is initially set to the attitude for standard printing shown in FIG. .

When the operator gives a print start instruction using the keyboard 15, the sub-control unit 23 starts execution of the control routine shown in FIG. In step 202, the image data to be printed is read from the image memory 106, and in the next step 204, it is determined whether the read image data is image data for large size printing.

When the image data is not the image data of the large size print (the image data of the standard size print), the process proceeds to step 208 and, as shown in FIG. 4A, the liquid crystal panel in the attitude for the standard print is used as usual. A standard size image is displayed on 31 and the next step 210 is shown in FIG.
As shown in (B), the displayed standard size image is
The printing paper 54 is exposed so that the long side direction (arrow A direction) of the image matches the width direction (arrow B direction) of the printing paper 54.

On the other hand, if the image data is image data of a large size print, an affirmative decision is made in step 204 and the operation proceeds to step 206, in which the liquid crystal panel 31 is rotated by 90 degrees by the rotation drive section 122. In the next step 208, as shown in FIG. 3B, the image of the large size print is displayed so that the long side direction of the image coincides with the long side direction of the image display surface 31A, and the next step 210 Then, Fig. 5
As shown in FIG. 5, the image displayed on the liquid crystal panel 31 is imaged and exposed on the photographic printing paper 54 so that the long side direction of the image matches the conveyance direction of the photographic printing paper 54.

Then, in the next step 212, the display of the image on the liquid crystal panel 31 is released, and the liquid crystal panel 31 is returned to the original posture (the posture for standard printing shown in FIG. 3A). In step 214 of the above, the photographic printing paper 54 exposed as described above is conveyed to the processor section 72, and the above-mentioned respective processes of developing, fixing, rinsing and drying are sequentially performed, and the photographic printing paper 54 is cut to a predetermined length by the cutter 88. The production of the print is completed by cutting into. As is clear from the above description, when a large-sized print is performed, the liquid crystal panel 31 is rotated 90 degrees from the standard print posture, so that, for example, as shown in FIG. Since the image of the large size print is displayed so that the long side direction matches the long side direction of the liquid crystal panel (= the conveyance direction of the printing paper), the reduction ratio of the displayed image can be suppressed. Therefore, it is possible to perform the large-sized print while minimizing the enlargement ratio when the displayed image of the large-sized print is formed on the photographic printing paper 54.

In the above embodiment, the liquid crystal panel 31 is used.
Although the example of returning the original posture to the original posture at the time when the exposure process for the large size print is finished is shown, the process of returning the liquid crystal panel 31 to the original posture each time can be omitted as follows.

That is, when the image to be printed is a large size print as in the control routine shown in FIG. 7, the liquid crystal panel 31 is set to the posture for large size print shown in FIG. If it is not the size print, the liquid crystal panel 3 is moved to the standard print posture shown in FIG. 3A in step 207.
Control the attitude of 1 (the liquid crystal panel 31 has already been
If the desired posture, keep the posture as it is). After the exposure process is completed, the process of returning the liquid crystal panel 31 to the posture for standard printing is not performed, and the posture at that time is held.

In this way, the method of controlling the liquid crystal panel 31 without returning to the original posture is effective in eliminating unnecessary operations, especially when there are many large-sized prints or when large-sized prints continue. Is large, and the mechanical deterioration of the rotation drive unit 122 for rotating the liquid crystal panel 31 can be minimized.

Further, in the above-described embodiment, the example in which the present invention is applied to the printer processor having the sub-printing section is shown. However, a photographic print system including an index printer and a paper processor, an image memory and It can also be applied to a liquid crystal photographic printer having a liquid crystal panel for displaying the image data stored in the image memory and an exposure system capable of exposing the image displayed on the liquid crystal panel.

[0055]

According to the first aspect of the present invention, when exposure is performed using a liquid crystal panel having an aspect ratio of the image display surface other than 1: 1, the reduction ratio of the image displayed on the liquid crystal panel is suppressed. Therefore, it is possible to obtain an effect that large size printing can be performed with the enlargement ratio when the image is formed on the photosensitive material being minimized.

According to the second aspect of the invention, when exposure is performed using the liquid crystal panel in which the aspect ratio of the image display surface is set to the standard aspect ratio, the image displayed on the liquid crystal panel is reduced in size. Since the rate can be suppressed, it is possible to obtain an effect that large size printing can be performed with the enlargement rate when forming the image on the photosensitive material being minimized.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a printer processor according to an embodiment.

FIG. 2 is a block diagram illustrating a configuration of a printer unit in the printer processor.

FIG. 3A is a diagram showing an example of displaying a panorama size image on a liquid crystal panel in a posture for standard printing,
(B) is a diagram showing an example in which a panoramic image is displayed on the liquid crystal panel rotated 90 degrees from the state of (A).

FIG. 4A is a diagram showing an example in which a standard size image is displayed on a liquid crystal panel, and FIG. 4B is an example in which a standard size image is displayed and exposed on a liquid crystal panel in a posture for standard printing. FIG.

FIG. 5 is a diagram showing an example in which a panorama size image is displayed and exposed on a liquid crystal panel which is rotated 90 degrees from the standard printing posture.

FIG. 6 is a flowchart showing a control routine executed by a sub control unit.

7 is a flow chart showing a modified example of the control routine shown in FIG.

FIG. 8 is a schematic configuration diagram of a rotation drive unit that rotates a liquid crystal panel.

[Explanation of symbols]

 10 Printer Processor 20 Main Control Unit 22 Sub Printing Unit 23 Sub Control Unit 31 Liquid Crystal Panel 32 Liquid Crystal Panel Driver 54 Printing Paper (Photosensitive Material) 58 Printer Unit 122 Rotation Driving Unit (Rotation Driving Means)

Claims (2)

[Claims] 1. An exposure method for displaying an image on a liquid crystal panel having an image display surface with an aspect ratio other than 1: 1 and exposing the displayed image on a photosensitive material, wherein the image is displayed on the liquid crystal panel before the image is displayed. The long side of the image displayed on the image display surface of the liquid crystal panel is parallel to the long side of the image display surface, and the short side of the image is parallel to the short side of the image display surface. An exposure method, wherein a relative position around a central axis perpendicular to each of the images displayed on the image display surface is set. 2. A photographic printer comprising an exposure unit for displaying an image on a liquid crystal panel set to a predetermined aspect ratio and exposing the photosensitive material, wherein the liquid crystal panel is centered perpendicularly to the image display surface. When the aspect ratio of the image is different from the predetermined aspect ratio, the long side of the image is parallel to the long side of the image display surface, and the short side of the image is the short side of the image display surface. And a control means for controlling the rotation driving means so as to rotate the liquid crystal panel by 90 degrees from the state when displaying the image of the predetermined aspect ratio so as to be parallel to the short side of the photographic printer. .