JPH09218472A - Image illuminating method and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve problems which are contrary to each other in a photographic printer and to realize efficient processing. SOLUTION: A rotary disk 60 provided with plural light diffusing plates whose light diffusing degree is different from each other is arranged on the light source 38 side of an exposure stage 32. A flaw detecting device 54 detecting the flaw of negative film 34 is arranged next to the stage 32. The flaw of the image part of the film 34 is read by the detecting device 54. In the case a few flaws exist, the light diffusing plate whose transmitted light diffusing degree is the smallest is selected, and in the case many flaws exist, the light diffusing plate whose light diffusing degree is large is selected. Since the image having many flaws is irradiated with light having a high diffused degree, the flaw of the image is made inconspicuous on photographic paper 48. Then, the image having a few flaws is irradiated with light having a low diffused degree, so that it is exposed in a short time. The efficient exposure is executed by previously changing the diffused state of the light before exposure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image illuminating method and an image illuminating device for printing or projecting an image on a film on a light-sensitive material, a light receiving means such as a CCD.

[0002]

2. Description of the Related Art In a general photographic printer, light from a light source is applied to an image portion of a film, and light transmitted through the image portion of the film is projected on a photographic paper through an enlargement lens.

As a method of irradiating the film with light, there are a condensing method of irradiating the film with condensed light and a diffused light method of irradiating the film with diffused light.

When the illumination system is the diffused light system, the image on the photographic paper becomes softer (that is, the printed image becomes softer) than in the case where the light of the condensing system is used.

On the other hand, even in the case of condensing type illumination or diffused type illumination, if the degree of diffusion of light applied to the film is reduced, the printed image becomes faithful to the film image (compared to the diffused type image. Is sharp.) However, on the other hand, scratches and the like appear faithfully (become more noticeable than the diffuse light type).

By the way, at a photo lab for general amateur users, the number of prints processed per day is enormous. Therefore, it is not possible to perform a time-consuming correction work for each scratch. Since it is not possible in practice, it is usual to print as ordered regardless of whether the film is scratched or not. Therefore, in such a photographic printer of a photo lab, the illumination for irradiating the film with light is often diffused light so that the scratches on the film are as inconspicuous as possible in the print.

[0007]

However, when the diffused light is used as the illumination, only a small part of the light transmitted through the film can pass through the projection lens, so that the light utilization efficiency is low and the output is possible even at a relatively low speed printer. Need a big lamp. Therefore, in order to increase the speed of the printer, there is no choice but to make the lamp light source for illumination brighter or to bring the illumination closer to the light condensing in order to improve the light utilization efficiency. However, the former has a problem that power consumption is large, and the latter has a problem that a film scratch is likely to appear on a print.

In recent years, the image on the film has been transferred to a CCD.
It may be projected on a light receiving means such as a light source and converted into an electric signal, and an image may be viewed on a monitor, recorded on a recording medium such as a floppy disk or a photo CD, or printed by a digital color printer or the like. However, even in such a case, the above problem occurs.

In the conventional photographic printer, the illumination of the film is fixed to either one of the diffused light type and the condensing type, so that the conflicting problems cannot be solved.

An object of the present invention is to provide an image illuminating method and an image illuminating device which can solve conflicting problems in a photographic printer or the like and can efficiently perform processing.

[0011]

According to a first aspect of the present invention, there is provided an image illuminating method in which light from a light emitting means is applied to an image on a film, and light passing through the image on the film is projected onto a light receiving means. , The state of the image portion of the film is read before the light passing through the image of the film is projected on the light receiving means, and the diffusion state of the light radiated to the image of the film is changed based on the state of the read image portion, After that, the light from the light emitting means is applied to the image on the film, and the light passing through the image on the film is projected onto the light receiving means.

In the image illuminating method according to the first aspect, first, the state of the image portion of the film is read. Next, the diffusion state of the light applied to the image on the film is changed based on the state of the read image portion, and then the light from the light emitting means is applied to the image on the film. In the present invention, the state of the image portion of the film is read first, so that in a photographic printer or the like, the diffusion state of light can be changed in advance before exposure, and efficient exposure can be performed. .

Here, the state of the image portion of the film is
Defects in the shape of the film, for example, unevenness, bending, bending, wrinkles, scratches, dust adhesion, etc.

When the diffusion degree of the light applied to the image on the film is lowered, the light utilization efficiency is increased. Therefore, in the case where the image portion of the film is in good condition, even if the degree of diffusion of light is suppressed, the shape defect of the film is not noticeable on the light receiving means, so the light output of the light emitting means can be small and power consumption is reduced. Can be suppressed.

Further, when the image portion of the film is in poor condition, the degree of diffusion of the light applied to the image on the film is increased to make the shape defect of the image portion of the film inconspicuous on the light receiving means. it can.

According to a second aspect of the present invention, in the image illuminating method according to the first aspect, the diffusion state of the light with which the image on the film is diffused is determined according to the state of scratches on the image on the film. It is characterized by changing.

Next, the operation of the image illumination method according to the second aspect will be described. If the light diffusivity is increased, scratches on the film image become less noticeable on the light receiving means such as photographic paper. Therefore, if the scratches are large or the amount of scratches is large, increase the light diffusivity. .

When the film has a scratch, the degree of light diffusion can be reduced so that the state of the scratch on the film can be easily understood.

Further, by using the stage for inspecting the film for scratches and the projecting means on the same stage, the diffusing means can also be used.

According to a third aspect of the present invention, the light emitted from the light emitting means to the film image is diffused by the diffusing means arranged between the light emitting means and the film, and the light passing through the image on the film is diffused. An image illuminating device for projecting on a light receiving means, comprising reading means for reading the state of the image portion of the film, and changing the diffusion state of light by the diffusion means in accordance with a read signal from the reading means. I am trying.

Next, the operation of the image illuminating device according to the third aspect will be described. First, the reading means reads the state of the image portion of the film, and the reading means outputs a read signal corresponding to the state of the image portion. Based on the read signal, that is,
The diffusion state of the light by the diffusion means is changed according to the state of the image portion of the film. Then, the light from the light emitting means illuminates the image on the film. In the present invention, since the state of the image portion of the film can be read first, in a photographic printer or the like, the diffusion state of light can be changed in advance before exposure, and exposure can be performed efficiently. Like

Here, the state of the image portion of the film is
Defects in the shape of the film, for example, unevenness, bending, bending, wrinkles, scratches, dust adhesion, etc.

When the diffusion degree of the light applied to the image on the film is lowered, the light utilization efficiency is improved. Therefore, in the case where the image portion of the film is in good condition, even if the degree of diffusion of light is suppressed, the shape defect of the film is not noticeable on the light receiving means, so the light output of the light emitting means can be small and power consumption is reduced. Can be suppressed.

Further, when the image portion of the film is in a poor condition, the degree of diffusion of the light applied to the image of the film is increased to make the shape defect of the image portion of the film inconspicuous on the light receiving means. it can.

According to a fourth aspect of the present invention, in the image illuminating method according to the first or second aspect, the diffusion state of the light with which the image of the film is irradiated is increased at the time of printing to increase the degree of diffusion. It is sometimes characterized by reducing the degree of diffusion.

Next, the operation of the image illuminating method according to the fourth aspect will be described. In the image illuminating method according to the fourth aspect, the degree of diffusion of the light irradiated on the image of the film is lowered at the time of the film verification performed before printing. This can cause film topographical defects (eg, bumps, folds, bends, wrinkles,
It is possible to make the state (good or bad) of the image easy to understand by making noticeable such as scratches and dust adhesion.

On the other hand, at the time of printing, the degree of diffusion of the light applied to the image is increased. As a result, it is possible to make the shape defect of the film inconspicuous on the light receiving means, and it is possible to obtain, for example, a print in which scratches or the like are inconspicuous.

According to a fifth aspect of the present invention, in the image illuminating device according to the third aspect, the position at which the image portion is read by the reading means is the same as the position of the film at the time of printing. There is.

Next, the operation of the image illuminating device according to the fifth aspect will be described. In the image lighting device according to the fifth aspect, the image portion of the film is read by the reading means at the position of the film at the time of printing, and then printing is performed. Since the position where the image portion is read by the reading means is the same as the position of the film at the time of printing, it is possible to use both the reading illumination and the printing illumination, and the number of parts is reduced. Further, since the reading stage and the printing stage are combined, space can be saved.

The invention described in claim 6 is the same as that of claim 3.
Alternatively, in the image illuminating device according to claim 5, it is preferable that the diffusion means controls the diffusion state of the light applied to the image on the film so as to increase the diffusion degree during printing and decrease the diffusion degree during film verification. It has a feature.

Next, the operation of the image illuminating device according to the sixth aspect will be described. In the image illuminating device according to the sixth aspect, the diffusivity of the light with which the image of the film is irradiated is lowered at the time of the film verification performed before printing. This can cause film topographical defects (eg, bumps, folds, bends, wrinkles,
It is possible to make the state (good or bad) of the image easy to understand by making noticeable such as scratches and dust adhesion.

On the other hand, at the time of printing, the degree of diffusion of the light applied to the image is increased. As a result, it is possible to make the shape defect of the film inconspicuous on the light receiving means, and it is possible to obtain, for example, a print in which scratches or the like are inconspicuous.

[0033]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a photographic printing apparatus 30. The photo printing device 30 includes a halogen lamp 39 as a light emitting means and a light source 38 for exposure including a reflector 41 that reflects upward light emitted from the halogen lamp 39.
Is arranged.

Above the light source 38, C (cyan), M
A light control filter section 40 including light control filters of (magenta) and Y (yellow), and a light diffusion box 42 are sequentially arranged.

An exposure stage 32 is disposed above the light diffusion box 42 for passing the developed negative film 34 (see FIG. 3) set in the photographic printing apparatus 30 via the rotating disk 60. Above the exposure stage 32, a plurality of lenses 44 (only one of which is shown in FIG. 1) having different magnifications, a black shutter 46, and a printing paper 48 as a light receiving unit are sequentially arranged.
A zoom lens may be used instead of the plurality of lenses 44 having different magnifications.

The light diffusing box 42 is formed by four reflectors in the shape of a rectangular tube which is open at the top and bottom, and each reflector has an inside reflecting surface.

The exposure stage 32 is provided with an opening, and the size of the opening is recorded on the negative film 34 as an image 34A.
It has a variable negative mask (not shown) that can be changed according to the size.

As shown in FIG. 2, the rotating disk 60 has a light diffusion plate 68A for diffusing the light from the light diffusion box 42,
68B and 68C are attached at predetermined intervals, and the degree of diffusion of transmitted light (light emitted from the light diffusion plate) is different. In this embodiment, the degree of diffusion of transmitted light is
The light diffusion plate 68A is the largest, the light diffusion plate 68C is the smallest, and the light diffusion plate 68B is the light diffusion plate 68A and the light diffusion plate 6.
It is set in the middle of 8C.

A rotating shaft 72 of a motor 70 is connected to the center of the rotating disk 60. A rotary encoder 74 that detects the rotation angle of the rotary disk 60 is connected to the rotary shaft of the motor 70. In the present embodiment, the rotating disk 60, the light diffusing plates 68A, 68B, 68C, and the motor 70 constitute the diffusing means of the present invention.

As shown in FIG. 1, the motor 70 is connected to a control circuit 52 as a changing means via a drive circuit (not shown). The rotary encoder 74 is also connected to the control circuit 52 and outputs an angle detection signal to the control circuit 52.

The light control filter 4 is emitted from the light source 38.
0, the light diffusing box 42, and any one of the light diffusing plates 68A to 68C pass through the opening of the variable negative mask, pass through the negative film 34, and are imaged on the photographic paper 48 by the lens 44. To be done.

Further, diagonally above the exposure stage 32,
A photometer 50 is arranged in a direction inclined with respect to the optical axis of the light beam emitted from the light source 38 and at a position where the image 34A recorded on the negative film 34 can be measured. The photometer 50 is composed of a two-dimensional image sensor or the like, divides the image 34A recorded on the negative film 34 into a large number of pixels, and separates the light transmitted through each pixel into R, G, and B component colors. , And measure the light intensity of each component color light. The photometer 50 is connected to the control circuit 52 and outputs the photometric value obtained by the above measurement to the control circuit 52.

Further, next to the exposure stage 32, a transport unit 36 and a scratch detection device 54 as a reading unit are arranged with the exposure stage 32 interposed therebetween.

The transport section 36 is provided with a pair of transport rollers 36A for sandwiching the negative film 34 and a pulse motor 36B for rotating the transport roller 36A.
6B rotates the conveying roller 36A to convey the negative film 34 in the direction of arrow A in FIG. The pulse motor 36B is connected to the control circuit 5 via the pulse motor drive circuit 56.
2 are connected.

The scratch detecting device 54 has an infrared lamp 5 at the bottom.
8 and a reflector 59 are provided, and a projection lens 61 and a line sensor 62 for detecting projected infrared rays are provided above. As shown in FIG. 3, the line sensor 62 is composed of a large number of light receiving elements arranged along a predetermined direction, and is arranged so that the light receiving elements are arranged in the width direction of the negative film 34. ing.

Corresponding to the line sensor 62, the flaw detection device 54 is provided with a rectangular opening whose longitudinal direction is the arrangement direction of the light receiving elements of the line sensor 62, and the infrared rays emitted from the infrared lamp 58 are The light is focused by the reflector 59, passes through the opening, and passes through at least the image region 34B of the negative film 34. The transmitted infrared rays are projected onto the line sensor 62 by the projection lens 61, and the amount of infrared rays transmitted through different parts of the negative film 34 is measured by the respective light receiving elements. The line sensor 62 is connected to the control circuit 52 and outputs the measurement value obtained by the above measurement to the control circuit 52.

The infrared ray is set to a wavelength at which the amount of the infrared ray transmitted through the negative film 34 is not affected by the density (in visible light) of the image 34A. Therefore, when the negative film 34 is not scratched, the amount of infrared rays received by the line sensor 62 does not change. However, when the negative film 34 is scratched, infrared rays are scattered at the scratched portion, so that the amount of infrared rays received by the line sensor 62 partially changes. By scanning the image area 34B while transporting the negative film 34 at a constant speed, it is possible to detect the state of scratches on the image 34A portion (scratch length, width, position, direction and number).

A visible light lamp may be used instead of the infrared lamp. In this case, it is possible to determine the state of the scratch by determining an image in which the width and the length are within a predetermined value with a density difference of a certain value or more with respect to the surroundings as a scratch.

The control circuit 52 is configured to include a microcomputer provided with a memory such as a CPU, a ROM and a RAM, for inputting various data and commands, and for various settings (selection of a light diffusion plate, etc.). A keyboard 64 for manually selecting is connected. The control circuit 52
Can calculate the area of the scratch from the length and width of the scratch. Further, the ROM of the control circuit 52 stores a map showing the relationship between the scratched state of the negative film 34 and the light diffusion plates 68A to 68C.

As shown in FIG. 1, a notch sensor 66 is provided upstream of the flaw detection device 54 in the negative film transport direction (direction of arrow A in FIG. 1). The negative film 34, which has been subjected to processing such as development by a developing device (not shown), is set in the photographic printing device 30 after undergoing an image inspection process. In the image inspection process, the image recorded on the negative film 34 is visually inspected by the operator to determine whether or not the image should be printed on the photographic paper. Then, as shown in FIG. 3, for the image determined to be printed, a notch 34C (notch) is formed at a corresponding position at one end in the film width direction.
Is given. The notch sensor 66 described above detects the notch 34C applied to the negative film 34. The notch sensor 66 is connected to the control circuit 52 and outputs the detection result to the control circuit 52.

Next, the operation of this embodiment will be described. First,
The negative film 34 is transported in the direction of arrow A by the transport unit 36, and the scratches on the image 34A are inspected by the scratch detector 54. Here, in the present embodiment, as a method of determining the degree of some scratches, the integrated value of “length × width” of the scratches of “more than a certain length and within a certain width range” is determined.

Next, if it is determined that the number of scratches is small from the obtained values, the light diffusing plate 68C having the smallest degree of diffusion of the transmitted light is selected, and if it is determined that there are many scratches, the transmitted light is selected. The light diffusion plate 68A having a large degree of diffusion is selected. When the amount of scratches is moderate, the light diffusion plate 68B
(In the present embodiment, this is used as a standard light diffusion plate.) Is selected.

After that, the negative film 3 is conveyed by the conveying section 36.
4 is conveyed in the direction of arrow A, and the image 34A on which the inspection of the scratch provided with the notch 34C is completed is conveyed to the exposure stage 32 and positioned.

Next, the image 34A positioned at the exposure position and illuminated by the light transmitted through the standard light diffusion plate 68B is measured by the photometer 50, and the reference negative film stored in the memory of the control circuit 52 in advance. Photometric value (reference value)
Based on the photometric value input from the photometer 50, the printing magnification, and the degree of diffusion of the selected light diffusion plate (degree of diffusion of illumination light), the positioned image 34A is printed on the photographic paper 48. The exposure conditions for printing are determined.

Thereafter, the lens 44 is switched according to the determined printing magnification, each filter of the light control filter unit 40 is moved so that the exposure condition for the photographic paper 48 becomes the determined exposure condition, and the selected light diffusion is performed. The plate is inserted between the light diffusion box 42 and the exposure stage 32. And
Exposure is performed by opening the black shutter 46 for a predetermined time based on the exposure conditions.

As a result, the image 34 of the negative film 34
A is printed on the printing paper 48.

In the present embodiment, the image 34A having many scratches is irradiated with light having a high degree of diffusion, so that the scratches on the image 34A can be made inconspicuous on the print (printing paper 48). Further, since the image 34A having few scratches is irradiated with light having a low degree of diffusion, it can be exposed in a short time.

In this embodiment, the degree of light diffusion is automatically changed according to the number of scratches, but the operator may manually change the degree of light diffusion by visually observing the film. .

Further, in the above embodiment, the negative film 3
The degree of scattering of the light irradiating the image 34A of No. 4 is changed by the light diffusion plates 68A to 68C.
It is also possible to change the degree of light scattering by another method without using C.

Another embodiment in which the degree of light scattering can be changed will be described below. [Other Embodiments] As shown in FIG. 4, in the embodiment, a halogen lamp 39 and a reflector 41 are provided so as to be movable along the optical axis S.
And the reflector 41 to drive the drive device 39A and the drive device 41.
The relative direction is used to change the direction of light reflected by the reflector 41 and change the degree of light scattering.

The reflector 41 may be fixed to move the halogen lamp 39, the halogen lamp 39 may be fixed to move the reflector 41, or both the halogen lamp 39 and the reflector 41 may be moved. good.

It is also possible to change the degree of light scattering by preparing a plurality of light sources each having a different curvature of the reflector and exchanging the light sources (lamp and light source).
Furthermore, it is possible to change the degree of light scattering by preparing a plurality of reflectors having different curvatures for one lamp and exchanging the reflectors. [Other Embodiments] As shown in FIG. 5, in the embodiment, a lens system 80 having a fixed focal length is provided so as to be movable along the optical axis S instead of the light diffusion box 42 shown in FIG. The lens system 80 is moved by the drive unit 80A to change the degree of light scattering. [Other Embodiments] As shown in FIG. 6, in the embodiment, a zoom lens 82 having a variable focal length is provided in place of the light diffusion box 42 shown in FIG. 1, and the focal length of the zoom lens 82 is driven. The degree of light scattering can be changed by changing it with the device 82A.

It is also possible to change the degree of light scattering by preparing a plurality of lens systems having different focal lengths and exchanging the lens systems. [Other Embodiments] As shown in FIG. 7, in the embodiment, a light source 38 is provided with a reflector 41 whose curvature can be changed, and by changing the curvature of the reflector 41, the light reflected by the reflector 41 is changed. The direction is changed and the degree of light scattering is changed. In this embodiment, the reflector 41 is formed of an elastically deformable thin metal plate and is divided into a plurality of small pieces 41A extending in the radial direction.
The curvature is changed by pulling or compressing each of the small pieces 41A along the longitudinal direction by a driving device (not shown). [Other Embodiments] As shown in FIG. 8, in the photo printing apparatus 30 of this embodiment, a half mirror 86 is arranged between the lens 44 and the exposure stage 32, and light is reflected by the half mirror 86. Half mirror 8 in the direction indicated
8 are arranged.

A negative density measuring section 90 for measuring the image density of each image 34A on the negative film 34 is provided in the direction in which light is reflected by the half mirror 88.
The negative density measuring unit 90 includes a scanner including an image sensor and the negative film 34 read by the scanner.
And an image density measuring device for measuring the image density of each image 34A.

On the other hand, a half mirror 92 is arranged in the direction of the light passing through the half mirror 88, and an area type sensor 94 is provided in the direction of the light reflected by the half mirror 92. In the present embodiment, the sensor 9
In step 4, the density of the image 34A is detected, and an image having a width and length within a predetermined value which is equal to or more than a certain density difference with respect to the surroundings is determined to be a scratch, thereby determining the scratch state.

Further, a scanner 96 composed of an image sensor or the like is arranged in the direction of light passing through the half mirror 92. A simulator 98 as an image display device is connected to the scanner 96 via an image processing signal section that performs a predetermined image processing on the image data of each image 34A of the negative film 34 read by the scanner. Each image 34A of the negative film 34 is displayed on the simulator 98.
About, the simulation image of the print in the case of being manufactured based on the set conditions is displayed.

In this embodiment, the image 94A is read by the sensor 94 at the position of the exposure stage 32, and then printing is performed. Since the position at which the image 34A is read is on the exposure stage 32, both the reading illumination and the printing illumination can be used, and the number of parts can be reduced. Also,
Since the stage for reading and the exposure stage 32 are used in common, space can be saved.

[0069]

According to the image illuminating method of the first aspect, the state of the image portion of the film is read before the film is irradiated with light. , By reducing the light diffusivity, the light output of the light emitting means can be reduced to reduce power consumption or the irradiation time can be shortened with the same light output, and when using a film in a poor image state, By increasing the degree of diffusion of the light applied to the image on the film, it is possible to make the geometrical defects of the image portion of the film inconspicuous on the light receiving means.
It has an excellent effect.

Furthermore, since the state of the image portion of the film is read first, in a photographic printer or the like, the light diffusion state can be changed in advance before exposure, so that exposure can be performed efficiently. become.

In the image illuminating method according to the second aspect, the diffusion state of the light radiated to the image on the film is changed according to the state of the scratch on the image. It has the excellent effect of making scratches less noticeable. Therefore, by using the present invention in a photographic printer, even if the image portion of the negative film has many scratches, it is possible to obtain a print in which scratches are not noticeable.

In the image illuminating device according to the third aspect, since the state of the image portion of the film can be read first before irradiating the film with the light, the film having the good image portion state is irradiated with the light. In this case, it is possible to reduce the power output by reducing the light output of the light emitting means by suppressing the degree of diffusion of the light. It has an excellent effect that the shape of the image portion of the film can be made inconspicuous on the light receiving means by increasing the diffusivity of the film. Furthermore, since the state of the image portion of the film can be read first, in a photo printer or the like, the diffusion state of light can be changed in advance before exposure, so that exposure can be performed efficiently. Become.

In the image illuminating method according to the fourth aspect, it is possible to make the shape defect of the film conspicuous at the time of film certification and to easily understand the image condition (good or bad). It has an excellent effect that it can be made inconspicuous on the light receiving means.

The image illuminating device according to the fifth aspect has an excellent effect that the reading illumination and the printing illumination can be combined, and the number of parts can be reduced. Further, since the stage for reading and the stage for printing are combined, there is an excellent effect that space can be saved.

The image illuminator according to claim 6 is
An excellent effect that makes it easy to understand the image state (good or bad) by making the shape defects of the film stand out during the film certification, and makes it possible to make the shape defects of the film inconspicuous on the light receiving means during printing. Have.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an image illumination device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a rotating disk portion.

FIG. 3 is a plan view of a negative film.

FIG. 4 is a configuration diagram of a main part of an image lighting device according to another embodiment.

FIG. 5 is a configuration diagram of a main part of an image lighting device according to still another embodiment.

FIG. 6 is a configuration diagram of a main part of an image lighting device according to still another embodiment.

FIG. 7 is a configuration diagram of a main part of an image lighting device according to still another embodiment.

FIG. 8 is a configuration diagram of a main part of an image lighting device according to still another embodiment.

[Explanation of symbols]

 39 Halogen lamp (light emitting means) 34 Negative film 34A image 48 Printing paper (light receiving means) 52 Control circuit (changing means) 54 Scratch detection device (reading means) 60 Rotating disk (diffusing means) 68A Light diffusing plate (diffusing means) 68B Light diffusion plate (diffusion means) 68C Light diffusion plate (diffusion means) 70 Motor (diffusion means)

Claims (6)

[Claims] 1. A method of illuminating an image on a film with light from a light emitting means and projecting the light passing through the image on the film onto a light receiving means, wherein the light passing through the image on the film is projected onto the light receiving means. Before changing the state of the image portion of the film, change the diffusion state of the light that illuminates the image of the film based on the state of the read image portion, and then illuminate the image of the film with light from the light emitting means A method for illuminating an image, characterized in that the light passing through the image on the film is projected onto a light receiving means. 2. The image illuminating method according to claim 1, wherein the diffusion state of the light applied to the image on the film is changed in accordance with the state of scratches on the image on the film. 3. Image illumination for diffusing light emitted from a light emitting means onto a film image by a diffusing means arranged between the light emitting means and the film, and projecting light passing through the image on the film onto a light receiving means. An image illuminating device comprising: a reading unit that reads a state of an image portion of the film, and changes a diffusion state of light by the diffusion unit according to a read signal from the reading unit. 4. The image illumination according to claim 1, wherein the diffusion state of light applied to the image on the film is increased during printing and decreased during film inspection. Method. 5. The image lighting device according to claim 3, wherein a position at which the image portion is read by the reading unit is the same as a position of the film at the time of printing. 6. The diffusion means is controlled so that the diffusion state of the light applied to the image on the film is increased so as to increase the diffusion degree during printing and to decrease the diffusion degree during the film inspection. The image lighting device according to claim 5.