JP2002196424A - Transfer device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transfer device with a simple structure capable of realizing miniaturization, lightweight, low power consumption and low cost, and being made portable. SOLUTION: A light source, a light linearizing means, a rear projection type image displaying means and a recording photoreceptor medium are arranged in the direction in which light from the light source advances. The light from the light source is converted into a linearized and approximately parallel light by the light linearizing means and vertically projected on a display surface of the image displaying means. The linearized and approximately parallel light is scanned relatively to the image displaying means, and an image to be displayed passing through the image displaying means is transferred onto the recording photoreceptor medium.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital still camera (DSC), a video camera, an image digitally recorded by a personal computer (personal computer), and the like, displayed on a transmission type image display means such as a liquid crystal display device (LCD). The present invention also relates to a transfer device for transferring (image formation) to a photosensitive recording medium such as an instant photographic film which develops a color by light using a displayed image.

[0002]

2. Description of the Related Art Conventionally, as a method of transferring (or printing) or recording a digitally recorded image on a photosensitive recording medium, various methods such as an ink jet method having a dot print head, a laser recording method, and a thermal recording method have been known. Is known. Here, in a printing method such as an ink jet method, it takes time to print, and the ink is easily clogged,
When precision printing is performed, there is a problem that the printed paper becomes wet with ink. In addition, the laser recording method requires expensive optical components such as a lens, so that the equipment cost is high. In addition, the laser recording method and the thermal recording method consume large power and are not suitable for carrying. There is a problem. As described above, in general, a transfer device using these methods, particularly in an ink jet method, requires a more precise and complicated drive mechanism and control mechanism, requires a large and expensive device, and requires a long time for printing. There was a problem that it would take.

On the other hand, JP-A-10-309829 and JP-A-11-242298 disclose a structure in which a display image is formed on a photosensitive recording medium such as an instant film using a liquid crystal display device. And a transfer device in which the cost is reduced. First, the electronic printer disclosed in Japanese Patent Application Laid-Open No. 10-309829 can copy a display screen of a liquid crystal display to a photosensitive medium to generate a photographic quality hard copy. However, this electronic printer uses an optical component such as a rod lens array between the display screen of the liquid crystal display and the photosensitive medium in order to copy the display screen of the liquid crystal display to the photosensitive medium. In addition, a predetermined interval (total conjugate length) is required between them, and in the illustrated example, 15.1 mm is required, and there is a problem that the optical member is expensive.

On the other hand, the printing apparatus disclosed in Japanese Patent Application Laid-Open No. H11-242298 eliminates the need for using expensive optical components such as a lens or securing a proper focal length, thereby reducing the conventional transfer method. As shown in FIG. 9, the display surface of a transmissive liquid crystal display (hereinafter, referred to as LCD) 300 can be made smaller and lighter as well as lower in power consumption and cost. Film 40
0 on the LCD 300 by turning on a light source (backlight 100) provided on the side opposite to the side of the photosensitive film 400 of the LCD 300, that is, by turning on the fluorescent lamp 101 and turning on the backlight. The image to be printed is printed on the photosensitive film 400.

[0005] Further, as another example, the publication discloses a backlight 100 and an LCD 300 as shown in FIG.
Is provided so as to suppress the diffusion of light from the backlight 100, that is, to make the light close to parallel light,
By providing a spacer 201 made of a rectangular hollow cylinder between the optical film 0 and an optical component, an image in the form of a frame of the lattice 200 (shadow by the frame) is prevented from being reflected on the photosensitive film 400, and an optical component is provided. There is disclosed one that improves the sharpness of an image formed on the photosensitive film 400 to a level that causes no practical problem without securing a proper length of the focal length or the like. .

Further, in the publication, the thickness of the LCD 300, that is, as shown in FIG.
01, glass substrate 302, liquid crystal layer 303, glass substrate 3
04 and the total thickness up to the polarizing plate 305 on the backlight 100 side is 2.8 mm, and the dot size is 0.5 m.
m on the screen of the LCD 300.
0 is shown in FIG.
In order to prevent diffusion of light emitted from 0, a 5 mm grating 200 having a thickness of 10 mm is arranged, and the grating 200 and the LCD 30 are arranged.
It is shown that a spacer 201 of 20 mm is arranged between 0 and 0, and the LCD 300 and the photosensitive film 400 are adhered to each other to prevent blurring (unclearness) of an image and to print. In this case, the original dot size is 0.5
The image displayed in mm is enlarged and transferred to a maximum of 0.67 mm, which is about 0.09 m when viewed on one side.
Although the image has been enlarged by m, the image is said to be sufficiently practical.

[0007]

However, Japanese Patent Application Laid-Open No.
In the printing apparatus disclosed in JP-A-242298, a liquid crystal display (LCD) is closely contacted with a photosensitive film and printing is performed to prevent blurring (unclearness) of an image and obtain an image that can be used practically. However, the close contact exposure of the LCD display image to the photosensitive film has the following problems. First, as shown in FIG.
A film-like polarizing plate 301 is disposed on the outermost surface of the photosensitive film 400 during exposure.
01, the photosensitive film 400 is moved when the photosensitive film 400 is moved to perform the subsequent processing.
And the polarizing plate 301 rub against each other to form a film-shaped polarizing plate 301.
Scratches on the polarizing plate 301 and the photosensitive film 4
In addition, there is a problem that light is scattered by these scratches and image quality is deteriorated. Also, the photosensitive film 40
When the polarizer 301 and the polarizer 301 are in close contact with each other, foreign matter such as dust and dirt adhere to the polarizer 301, deteriorating the sharpness and image quality of the transferred image, and easily causing a spot failure. There is also a problem that the surface of the polarizing plate 301 must be cleaned and cleaned.

[0008] On the other hand, it is conceivable that the both are brought into close contact with each other at the time of exposure and the photosensitive film is slightly separated from the polarizing plate at the time of moving the photosensitive film. In addition, a new mechanism for contacting / separating the photosensitive film is required, which causes a problem of cost reduction and miniaturization. Also,
In general, photosensitive films, e.g., the most accessible instant films, are stored in a light-shielding case until loaded into a printing device, and the light-shielding case is provided with an opening frame slightly larger than the size of the film. Because
The following procedure is required to make the photosensitive film and the polarizing plate adhere to each other.

Prior to exposure, first, a single photosensitive film is taken out of the light-shielding case and brought into close contact with the polarizing plate on the LCD surface. Exposure is performed in this state, and after the exposure is completed, the photosensitive film is separated from the polarizing plate surface, and moved for processing (in this case, in the case of an instant film, the processing liquid tube set in the film sheet is broken. ). It is necessary to repeat such a procedure for each photosensitive film, and in particular, separating the closely adhered photosensitive film from the polarizing plate surface is not suitable for automation (or mechanization). . Note that in order to omit such a procedure, an LCD having a size that can be inserted into the opening frame must be specially prepared, which causes a problem that the cost is increased. Recently, an LCD having a large display screen has been marketed. However, when an LCD having a large display screen is used, the printing apparatus disclosed in the publication discloses a large size (large area) having a predetermined lattice interval. ) Grid must be created,
There is a problem that manufacturing is difficult and costly.

By the way, in recent years, LCDs have become finer, and LCDs having a larger number of pixels and therefore a smaller dot size are being commercialized. For example, in a low-temperature polysilicon type TFT LCD, UXGA (1
0.4 inch, 1200 × 1600 pixels), XGA
(6.3 and 4 inches, 1024 × 768 pixels) and the like are commercially available. LC with such a fine screen
Even if D is applied to the printing apparatus disclosed in JP-A-11-242298, the dot size of each pixel of RGB is about 0.04 mm on the short side in UXGA, In a situation in which the dot size is enlarged as in the case of a printing apparatus of the type described above, an LCD image having such a small dot size can be clearly defined on a photosensitive film in a state where the dots of each RGB pixel can be clearly identified. There is also the problem that transcription is becoming impossible.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, realize a truly compact, lightweight, low power consumption and low cost with a simple structure, and also to be portable. A transfer device is provided. Further, another object of the present invention is that, in addition to the above object, even when a transmission type image display means of a large display screen is used, a scattered light component is removed, and only a component closer to parallel light is uniform in a predetermined direction. Linearly collimated light can be perpendicularly incident on the image display means, so that a high-definition image is transferred to the photosensitive recording medium by the light carrying the display image passing through the image display means ( It is an object of the present invention to provide a low-cost transfer device capable of forming a printed image and obtaining a transferred image with high definition. Still another object of the present invention is that, in addition to these objects, it is difficult to emit uniform light over the entire surface, such as a light guide plate (body), a reflection sheet, a lens sheet, a prism sheet, a diffusion sheet, and the like. It is an object of the present invention to provide a low-cost transfer apparatus which requires many members, does not require an expensive planar light source (backlight), and can reduce the cost of the light source itself.

[0012]

In order to achieve the above object, the present inventor has developed a more practical transmissive image display means such as a liquid crystal display capable of obtaining a transfer image with high definition. As a result of intensive research on a low-cost transfer device that can use the image, the image blur (unclearness) can be obtained with a simple configuration and a practical device configuration.
In order to prevent this and to obtain a transfer image with high definition, it is necessary to remove the scattered light component and make it perpendicularly incident on the image display means as linear substantially parallel light composed of components closer to parallel light. For that purpose, it was found that the light from the light source should be made into a substantially parallel light by the linear light converting means provided with a plurality of through holes in one direction, and that the cost could be reduced. It has been found that by using a linear light source as a light source itself, linear substantially parallel light having uniform light intensity in one direction can be obtained, and the cost can be reduced.

That is, the present invention provides a light source, a substantially parallel light generating element, a transmission type image display means, a light source, a linear light generation means, a transmission type image display means, and a photosensitive recording medium. A transfer device that is arranged along a traveling direction of light from the light source and transfers a display image transmitted from the image display unit to the photosensitive recording medium, wherein the linear light conversion unit includes light from the light source. Is a linear substantially parallel light, is vertically incident on the display surface of the image display means, and relatively scans the image display means with the linear substantially parallel light. Is what you do.

Here, it is preferable that the light source is a linear light source, and the linear light converting means converts the light from the linear light source into a substantially parallel linear light. A linear light source and the linear optical unit, and the image display unit and the photosensitive recording medium are integrally combined, and the linear light source and the linear optical unit, the image display unit, and It is preferable that the photosensitive recording medium is relatively movable along one side of the transmission type image display means. Further, it is preferable that the light source is a planar light source, and that the linear light converting means converts the light from the planar light source into substantially parallel linear light. Is preferably configured to be movable along one side of the planar light source.

[0015] The linear optical means has a plurality of through holes arranged in a direction perpendicular to the moving direction, and the cross-sectional shape of the through holes is circular or polygonal.
It is preferable that the thickness is at least three times the diameter or the equivalent diameter of the through hole. Further, it is preferable that the size of the image displayed on the image display means is substantially the same as the size of the image transferred to the photosensitive recording medium. Further, the size of each pixel of the image display means is set to 0.
It is preferably 2 mm or less. Preferably, the image display means is a transmissive liquid crystal display.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A transfer device according to the present invention will be described below in detail based on a preferred embodiment shown in the accompanying drawings. FIG. 1 is a schematic side sectional view of an embodiment of the transfer device according to the present invention, and FIG. 2 is a side sectional view of a main part for explaining the concept of the transfer device shown in FIG.

As shown in these figures, the transfer apparatus of the present invention comprises a backlight unit 1 serving as a light source, a perforated plate 2 for generating linear substantially parallel light as linear light means, and a transmission type. A liquid crystal display device (LCD) 3 for displaying digitally recorded images as image display means, a film case 51 for accommodating a photosensitive film 4 as a photosensitive recording medium, a backlight unit 1, a perforated plate 2, ,
The main body case 6 includes the LCD 3 and the film case 51. Here, the perforated plate 2 and the LCD 3
And the photosensitive film 4 are arranged in series along the traveling direction of light from the backlight unit 1, and preferably, at least the LCD 3 and the photosensitive film 4 are not in contact with each other. The perforated plate 2 is moved by the moving means 8 so that the upper side of the emission surface of the backlight unit 1 is
Can be moved along one side. This perforated plate 2
Light-shielding masks (films) 7a and 7b for shielding light from areas other than the through holes 21 of the perforated plate 2 are disposed before and after the moving direction. Further, in FIG. 1, the perforated plate 2 and the backlight unit 1 are in contact with each other, but in the present invention, it is not always necessary to make contact.

The backlight unit 1 serving as a light source has an L
A planar light source having a light emitting surface (light emitting surface) substantially the same as the display screen of the LCD 3 for irradiating uniform light onto the entire surface of the CD 3 from behind, and a rod-shaped lamp 11 such as a cold cathode ray tube. And a light guide plate (not shown) for introducing light emitted from the rod-shaped lamp 11 in a predetermined direction, and a reflection sheet (not shown) for reflecting light introduced to the light guide plate in a direction substantially orthogonal to the light guide plate.
And a backlight assembly having a diffusion sheet (not shown), a prism sheet, and the like for equalizing the light reflected by the reflection sheet.

The backlight unit 1 used in the present invention is not particularly limited, and emits light emitted from the cold cathode ray tube 11 using a backlight assembly including a light guide plate, a reflection sheet, a diffusion sheet, a prism sheet, and the like. It is sufficient that the light source is a planar light source that diffuses light uniformly, and a conventionally known LCD backlight unit can be used. Here, in the illustrated example, the size of the light emitting surface (light emitting surface) can be configured to be the same as the size of the display screen of the LCD 3 or the size of the photosensitive surface of the photosensitive film 4.
The size is not necessarily limited to this, and may be slightly larger than the display screen of the LCD 3 or the size of the photosensitive surface of the photosensitive film 4. As the backlight unit 1 used in the present invention, an LED array light source, a light source using an organic EL panel, an inorganic EL panel, or the like can be used as long as it is a planar light source that can emit light of a required light intensity.

The perforated plate 2 used in the present invention is disposed between the backlight unit 1 and the LCD 3 to convert the light from the backlight unit 1 into substantially linear parallel light, and to enter the light incident on the LCD 3. LCD as parallel as possible
3 is a linear light converting means for vertically incident on the rectangular plate 3, and a rectangular plate having a predetermined thickness is provided with one or several rows of through holes 21 of a predetermined size (one row in the example shown in FIG. 3A) at a predetermined pitch. Are provided in large numbers. In the present invention, the linear light means has a function of causing light from a light source to be incident on the transmission type image display means at right angles as linear substantially parallel light. The direction of movement of the means (transmissive LCD
This is to emit linear light having a predetermined length in a direction (longitudinal direction) orthogonal to the screen scanning direction. Here, as the linear light converting means, any means having the above-mentioned function may be used. However, taking into consideration the point of easy manufacture, as shown in FIG. It is a so-called "column-shaped perforated plate" having a predetermined thickness, a narrow width, and a narrow width (a narrow width) having a large number of through holes arranged in at least one row (one row in the illustrated example) along the direction. Is preferred.

In the present invention, the perforated plate 2 and the LC
The distance from D3 is preferably 0.05 mm to 10 m
m, more preferably 0.1 mm to 5 mm. This is to prevent the pattern of the through-holes 21 of the linear lightening means represented by the columnar perforated plate 2 from appearing in the form of "shadow" due to diffused light. In addition, the above-mentioned interval set here can prevent the above “shadow”,
This is a condition that does not decrease the sharpness of the transferred image.

Here, the material of the porous plate 2 is not particularly limited, but for example, a metal plate such as an aluminum plate having a predetermined thickness, a resin plate, a carbon material plate, or the like can be used. The thickness of the perforated plate 2 is also not particularly limited, and may be appropriately selected according to the required sharpness of the transferred image or according to the size of the display screen of the LCD 3 or the size of the photosensitive surface of the photosensitive film 4. Good. In addition, perforated plate 2
As a manufacturing method of the above, a method of laminating a porous sheet, a method of molding (forming) with a resin, and the like are practical.
There is no particular limitation as long as processing is possible, and any processing method may be used, including a method of mechanically drilling holes.

The shape of the through hole 21 provided in the perforated plate 2 is not particularly limited, and may be, for example, a cylindrical shape, an elliptic cylindrical shape, a polygonal cylindrical shape, or the like. That is, the through hole 21
The cross-sectional shape of is not particularly limited, and may be, for example, a circle, an ellipse, a polygon such as a square and a regular hexagon, etc. preferable. Further, the through-hole 21 is formed in the perforated plate 2
In the thickness direction of is preferably parallel through holes,
What is necessary is just to be able to be regarded as substantially parallel. Also, the size of the through hole 21 is not particularly limited, but the diameter (in the case of a circle) or the equivalent diameter (in the case of an ellipse or polygon) of the through hole 21 of the perforated plate 2 should be 5 mm or less. Preferably, more preferably 3 mm or less, still more preferably,
It is better to be 1.5 mm or less. The lower limit is not particularly limited, but is 0.2 m in consideration of ease of production.
It is preferably about m or more.

When a plurality of through holes 21 are arranged in two or more rows, the number and arrangement shape of the through holes are not particularly limited. For example, the arrangement shape is preferably a checkerboard shape or a staggered shape (closest shape), and more preferably a staggered shape. The number of arrays may be, for example, one to several, but in the case of a plurality of rows, an even-numbered row is particularly preferable in the case of a staggered array. The reason for this is as shown in FIG.
In the case of the perforated plate 2 having the through holes 21 arranged in columns, that is, the odd columns, the light from the two through holes 21 in the first and third columns illuminates the LCD 3 in the rows A and C, but is bright. In the row D, since only the light from one through hole 21 in the second column illuminates the LCD 3, it is dark.
This is because dark streaks are formed in rows. The arrangement pitch p of the plurality of through holes 21 provided in the perforated plate 2 is
Are arranged uniformly and any pitch can be used as long as the displayed image on the LCD 3 can be clearly transferred to the photosensitive film 4.
What is necessary is just to set according to the size of the through-hole 21, etc. For example, the arrangement pitch p is preferably as small as possible.

In the present invention, the distance d between the through holes is not particularly limited, but is more important than the arrangement pitch p and the size of the through holes 21. The reason is that if the distance d between the through holes is increased, the above-described through holes 21
This is because it is necessary to increase the distance between the perforated plate 2 and the LCD 3 in order to eliminate the “shadow” due to the diffused light. Therefore, the distance d between the through holes is, for example, preferably 1 mm or less, more preferably 0.5 mm or less, and still more preferably 0.1 mm or less, in terms of the distance y in the longitudinal direction (arrangement direction). It is good to be 2 mm or less. The lower limit is not particularly limited, but is preferably about 0.05 mm or more in consideration of ease of production. The distance d between the through-holes converted into the distance in the longitudinal direction refers to the case where the arrangement of the through-holes 21 in the perforated plate 2 is one row as shown in FIG. 4 (b) or as shown in FIG. 4 (c). As described above, when the plurality of rows (four rows in the illustrated example) have the closest density, the distance d between the closest through holes 21 is referred to, and as illustrated in FIG. Row) also has a zigzag shape, when projected from a direction orthogonal to the longitudinal direction, the distance y in the longitudinal direction between the nearest through holes 21 when projected from the direction.
Say The interval x in the direction perpendicular to the longitudinal direction in the case of a zigzag shape as shown in FIG. 4D has a greater degree of freedom than the interval y, and is preferably, for example, 2 mm or less.
More preferably 1 mm or less, still more preferably 0.5 m
m or less. As described above, in the perforated plate 2 used in the present invention, the intervals x and y do not need to be the same. For example, even if y = 0.2 mm, x = 0.5 mm or 1 mm So good
An important feature is that manufacturing restrictions are eased and manufacturing is facilitated.

The thickness t 1 of the perforated plate 2 is at least three times, preferably at least five times the diameter or the equivalent diameter of the through hole 2.
More preferably, it is more than 7 times. In addition,
The above-described equivalent diameter is a length represented by “4 × area / total side length (or entire circumference length)”. Through hole 21 of perforated plate 2
And the thickness t1 of the perforated plate 2 is 3 mm of the diameter or the equivalent diameter of the through hole 21.
The reason why the number is twice or more is that these conditions are effective conditions for obtaining parallel light by the perforated plate 2.

It is preferable that at least the inner surface of the through hole 21 of the entire surface of the perforated plate 2 is formed of a low-reflectance surface, and more preferable that the entire surface of the perforated plate 2 is formed of a low-reflectance surface. Is good. Here, the low reflectance surface is, for example,
A surface that reduces the reflectance of incident light, such as a blackened surface or a roughened surface. The method for forming the blackened surface is not particularly limited, and examples thereof include a method of using a raw material constituting the perforated plate 2 itself and a method of blackening the surface. Examples of the black material include a material containing 1% or more (preferably 3% or more) of carbon black powder, and a material obtained by hardening carbon powder. Examples of the blackening treatment include, for example, painting and chemical treatment (plating, oxidation, electrolysis, etc.). On the other hand, there is no particular limitation on the surface roughening treatment. However, for example, post-processing such as a method of simultaneously roughening a hole when processing it, a method of mechanical treatment such as sandblasting, and a method of chemical treatment such as etching. It is possible to arbitrarily use a method for roughening the surface. In this case, the degree of surface roughening is, for example, 1 in Ra roughness.
About 20 μm is an effective range.

In the present invention, at least the inner surface of the through hole 21 of the perforated plate 2 is more preferably
Is preferably 2% or less, more preferably 1% or less. This means that if the reflectance is 2% or less, scattered light other than parallel light incident from the backlight unit 1 can be efficiently absorbed, and only substantially parallel light (including parallel light) from the backlight unit 1 can be efficiently absorbed. This is because the light can be emitted well and made incident on the LCD 3. In addition, the reflectance was measured using, for example, a Shimadzu Corporation MPC3100 type spectral reflectance measuring instrument.
It can be measured at a wavelength of 550 nm.

As described above, the perforated plate 2 is located between the backlight unit 1 as a light source and the LCD 3,
1 and 2 (backlight unit 1).
(Longitudinal direction of the light source) along with the light shielding masks 7a and 7b arranged before and after the moving direction. The movement of the perforated plate 2 is performed by blocking light from the backlight unit 1, which is a planar light source, from light other than through holes 21 of the perforated plate 2, and dividing the light into linear light to the LCD 3 sequentially. This is done to send. The moving means 8 for moving the perforated plate 2 includes a motor 8 disposed on the right end side of the backlight unit 1 in the figure.
a, a pulley 8c attached to the motor 8a, and a pulley 8c disposed on the left end side of the backlight unit 1 in the figure.
And the perforated plate 2 stretched over these pulleys 8c, 8c.
And an endless belt 8b to which an end in the longitudinal direction is attached. The moving means 8 includes an endless belt 8.
b and a set of pulleys 8c, 8c for stretching the same are attached to both ends of the perforated plate 2 in the longitudinal direction, and the two endless belts 8b (only one end is shown) are preferably driven continuously in synchronization. .

The moving speed of the perforated plate 2 by the moving means 8 depends on the brightness of the backlight unit 1 as a light source,
Depending on the size (diameter or equivalent diameter) or pitch of the through-holes 21 of the perforated plate 2, it may be several mm / sec.
It is preferable to set it to about several hundred mm. The moving means 8 used in the present invention attaches the longitudinal end of the perforated plate 2 to the endless belt 8b as described above.
The method is not limited to only the method of driving the b. The method of driving the perforated plate 2 to the traveling nut and driving the drive screw screwed with the traveling nut, fixing the perforated plate 2 to one end of the wire, Any method may be used as long as it is a conventionally known moving method such as a method of winding up.

The linear light converting means used in the present invention is not limited to the above-described columnar perforated plate 2, but may be any one shown in FIG.
A perforated plate 2A as shown in (b) can also be used.
In the perforated plate 2A shown in FIG. 3 (b), continuous recesses 21a are provided on the through holes 21 arranged in one row,
The rod lens 22 is set in 1a. In the perforated plate 2A, the light emitted from the through holes 21 of the perforated plate 2 can be made more parallel due to the role of the rod lens 22. Further, in the present invention, instead of the perforated plate, a slit plate having a slit capable of obtaining strip-shaped slit light can be used, but the slit cannot reduce the scattering of light in the longitudinal direction as much as the perforated plate. Therefore, the perforated plate 2 shown in FIG. 3 (a) and the perforated plate 2A shown in FIG. 3 (b) are more preferable than the slit plate. If not high, a slit plate may be used.

The LCD 3 is a transmission type image display means for displaying a digitally recorded image. In the present invention, the transmission type image display means is not particularly limited, and may be a digital still camera, a digital video camera,
If it is connected to a digital image data supply unit such as a personal computer and displays a display image as a transmission image according to the supplied digital image data, an LCD
3 and other transmission-type electronic image display means, and in addition to this, a transmission-type image carrying means such as a photographic film on which an image is formed. Preferably it is. Note that a digital image data supply unit such as a digital camera connected to the LCD 3 is configured to select and supply an arbitrary image from images prepared in advance. The digital image data supplied to the LCD 3 may be data read from a transparent original or a reflective original by a scanner or the like, in addition to the above-described case. Also, L
The CD3 is not limited to digital image data, and can display an image based on analog image data of an image captured by a normal video camera, as long as the image can be displayed as a transmission image. Is also good. In addition,
A predetermined gap is provided between the LCD 3 and the perforated plate 2, and the gap is preferably 0.05 mm to 10 mm, more preferably 0.1 m, as described above.
m to 5 mm, but is preferably configured to be adjustable to any size.

As shown in FIG. 5, the LCD 3 is arranged from the photosensitive film 4 side to the perforated plate 2 side (backlight unit 1).
Side), a film-shaped polarizing plate (hereinafter, also referred to as a polarizing film) 31, a glass substrate 32, an electrode 33,
It has a structure in which a liquid crystal layer 34, an electrode 35, a glass substrate 36, and a film-like polarizing plate 37 are laminated, and the liquid crystal layer 34 is sandwiched between the glass substrates 32, 36 and the polarizing plates 31, 37 from both sides thereof. There are, but as we all know,
Although not shown, it goes without saying that it has a black matrix, an RGB color filter, an alignment film, and the like. Here, for example, in the case of a TFT-type LCD, the electrode 33 is a common electrode, and a black matrix or an RGB color filter is arranged between the electrode 33 and the glass substrate 32.
Comprises a display electrode, a gate electrode, and the like. Note that a resin substrate or the like may be used instead of the glass substrates 32 and 36. The structure of the LCD 3 is not particularly limited as long as a transmission image display is possible. For example, the LCD 3 has a conventionally known liquid crystal display mode, and a conventionally known LCD of a driving method can be used. Are TN mode, STN mode, CSH mode, FLC, OCB
A liquid crystal display mode using a polarizing plate such as a mode can be cited. Examples of the driving method include an active matrix driving method such as a TFT type and a diode type, and a direct matrix driving method including XY stripe electrodes. it can.

The size of the LCD 3 is not limited and may be any size, but may be appropriately selected according to the size of the photosensitive film. The dot size of each pixel of the RGB of the LCD 3 is not particularly limited, but in order to obtain a clearer high-quality photographic image, the size of at least the short side of each pixel is 0.2 mm or less. Is preferred. This is because a clearer transfer image can be obtained when the thickness is 0.2 mm or less. LCD3
The number of pixels (or pixel density) is not particularly limited, but in order to transfer and obtain a high-definition, high-definition, high-quality image, the dot size of each of the RGB pixels, which is commercially available in recent years, is small. It is preferable to use an LCD having a high definition screen. As such an LCD, for example, UXGA (1
0.4 inch, 1200 × 1600 pixels), XGA
(6.3 and 4 inches, 1024 × 768 pixels).

In the LCD 3 used in the present invention,
At least, the total thickness t2 of the combination of the substrate 32 and the polarizing film 31 on the photosensitive film 4 side should be as thin as possible, and 1.0 mm or less, preferably 0.8 mm or less,
It is more preferably set to 0.6 mm or less. In addition,
More preferably, the total thickness of the substrate 36 and the polarizing film 37 on the side of the backlight unit 1 (the perforated plate 2) is also preferably smaller, more preferably 1.0 mm or less, preferably 0.8 mm or less. It is better to be 0.6 mm or less. Also, the lower limit is not particularly limited,
For example, in the glass substrate 32, it is considered that the thickness of the glass substrate 32 itself is reduced to about 0.5 mm.
It may be 5 mm or more. Incidentally, this total thickness is not limited to these, and as a configuration for realizing the above conditions, it is effective to consider the use of a resin substrate instead of a glass substrate. The lower limit can be further reduced.

In the present invention, the reason why the total thickness t 2 of the substrate 32 on the photosensitive film 4 side and the polarizing film 31 combined is preferably 1.0 mm or less will be described below. The condition of the total thickness is equivalent to suppressing the diffusion of light in the section from the backlight unit 1 to the LCD 3, and strictly speaking, the LCD 3 and the photosensitive film 4
Even if the display surface 3 and the photosensitive surface of the photosensitive film 4 are not in contact with each other, a clearer transfer image can be obtained. That is, in the transfer device according to the present invention, it is preferable that the display surface of the LCD 3 and the photosensitive surface of the photosensitive film 4 are separated from each other by a predetermined distance so as to be in a non-contact state. The condition of the non-contact state is a necessary condition for realizing a practically easy-to-handle transfer device with a simple configuration and practicality. However, the display surface of the LCD 3 and the photosensitive surface of the photosensitive film 4 are used. This is rather a negative factor from the viewpoint of promoting the diffusion of light between the two, and obtaining a clear transfer image. For this reason, in the present invention, it is preferable that the minus component (increase in light diffusion) due to the non-contact state condition is covered by the plus component (light suppression component) according to the above-described total thickness condition.

As described above, in the conventional printing apparatus disclosed in Japanese Patent Application Laid-Open No. H11-242298 shown in FIG. 9, an LCD having a thickness of about 2.8 mm is used. As shown in the figure, the LCD includes two polarizing plates 301 and 305, two substrates 302 and 304, and a liquid crystal 303 interposed therebetween. Although there is no disclosure in this publication, generally, the thickness of the liquid crystal itself is 0.0
About 05mm (Color TFT liquid crystal display: p20
7, Kyoritsu Shuppan published), it is considered that the total thickness of the substrate 301 (305) on one side and the polarizing plate 302 (304) is about 1.3 mm to 1.4 mm.
Here, since the diffusion degree of light is proportional to the distance, if the above-mentioned thickness of 1.3 mm to 1.4 mm is reduced to １ ／, the diffusion degree is also reduced to 、. About 0.09 mm ".
2, that is, it is estimated to be reduced to about 0.04 mm to 0.05 mm. However, at such a degree of diffusion, the latest UXGA or X
In an LCD having a fine dot size such as GA, overlapping of adjacent dots occurs.

That is, the diffusion degree is 0.04 mm or more.
If the thickness is reduced to about 0.05 mm, the dots overlap, causing color bleeding, and only an unclear image can be obtained. However, according to the study of the present inventors, it is quite surprising that, as described above, the thickness of one side, that is, at least the thickness of the substrate 32 on the photosensitive film 4 side and the polarizing film 31 is set to 1.0 mm or less. It has been found that even in the LCD 3 having a fine dot size such as UXGA or XGA, the color bleeding due to the overlapping of the dots is eliminated and a clear transfer image can be obtained. The reason for this is
It is considered that scattering by the glass substrate 32 and the polarizing film 31 of the LCD 3 is reduced.

In the present invention, it is preferable that the photosensitive surface of the photosensitive film 4 is arranged on the display screen of the LCD 3 with a predetermined gap. A plurality of photosensitive films 4 are stored in a film case 51. In the present invention, even if the film case 51 is mounted in the main body case 6 and is loaded with a plurality of photosensitive films 4 of one set (pack), the film case 51 is detachably mountable. The film pack 5 accommodating the photosensitive film 4 may be directly loaded into the main body case 6, but the film pack 5 together with the film case 51, that is, the film case accommodating a plurality of photosensitive films 4. It is preferable to configure so that 51 itself can be loaded.

The photosensitive film 4 is used as the photosensitive recording medium of the present invention. The photosensitive recording medium of the present invention is not particularly limited as long as a visible positive image can be formed by exposure printing of a transmission display image of the LCD 3, and is not particularly limited. Photographic films and the like are preferred.
As the photosensitive film 4 used as such a photosensitive recording medium, mono-sheet type instant photographic films “In-Stacks Mini” and “In-Stacks”
(Both manufactured by Fuji Photo Film Co., Ltd.). Such an instant photographic film is commercially available as a so-called film pack having a predetermined number of films in a film case. Therefore, in the present invention, if the gap between the photosensitive surface of the photosensitive film 4 and the display screen of the LCD 3 can be arranged so as to satisfy the conditions described later,
As shown in FIG. 1, the film pack 5 can be loaded in the main body case 6 as it is.

FIG. 6 shows the structure of one embodiment of such a film pack 5. A claw member (claw) for taking out the film sheet 4 from the (film case 51) of the film pack 5 can be inserted into one end of the film case 51 in the film pack 5 having the structure shown in FIG. A notch 52 is provided, and the exposed film sheet 4 is taken out from the outlet 53 of the film case 51 of the film pack 5 by the claw member, and sent to a processing step by a transport mechanism (not shown). . Here, the processing step means that a processing liquid (developer) tube (not shown) provided beforehand at one end of the film sheet 4 is pushed and broken so that the developer is uniformly spread over the entire surface of the film sheet 4. This means that the film sheet 4 is taken out and transported from the film pack 5 substantially simultaneously. The film sheet 4 that has undergone the processing steps is sent out of the apparatus from an outlet 62 of the main body case 6 (see FIG. 1).

As is well known, this kind of instant photographic film can be formed into a complete image in several tens of seconds after the above-described processing steps, and can be used for viewing.
Therefore, in the transfer apparatus of the present invention, the required functions are performed until the above-described processing steps are performed. After one film sheet is fed out, the next film sheet appears, and a ready state in which the next exposure (transfer) can be performed is realized.
The method of handling the film pack described above is described in Japanese Patent Application Laid-Open No. 4-194, filed by the present applicant.
Reference can be made to an instant camera using an instant photographic film disclosed in JP-A-832.

In FIG. 6, reference numeral 54 denotes the height of the edge (stepped portion) of the film case 51 of the film pack 5, and by setting the height 54 of the edge to a desired size, the LCD 3 is turned on. Can be set to a predetermined value, which will be described later, between the display surface and the photosensitive surface of the photosensitive film 4. Therefore, in the present invention, a conventionally known film pack of instant photographic film can be applied except that the height 54 of the edge is adjusted to a desired size. The film case 51 is attached to the main body case 6 and one set of the photosensitive film 4 is set.
When only the film case 51 is loaded into the film case 51, by setting the height 54 of the edge to a desired size,
The separation distance between the display surface 3 and the photosensitive surface of the photosensitive film 4 can be set to a predetermined range described later. FIG.
In the example shown, the film case 51 is in direct contact with the display surface of the LCD 3 outside the effective area of the image on the photosensitive film 4, but the present invention is not limited to this, and the height 54 of the edge of the film case 51 is not limited thereto. However, when the film case 51 is low, the film case 51 may be attached or loaded with a predetermined distance from the display surface of the LCD 3. Further, in the present invention, the film case 51 is
May be brought into contact with a holding panel that holds the display surface on the outside, but it is preferable to satisfy the conditions described later.

In the transfer device of the present invention,
As described above, the LCD 3 and the photosensitive film 4 are kept in a non-contact state, strictly speaking, the display surface of the LCD 3 and the photosensitive film
It is preferable that the photosensitive surface is separated from the photosensitive surface by a predetermined distance in a non-contact state. In the present invention, in order to obtain a clear transfer image, a negative factor of an increase in light diffusion caused by this is caused by the fact that the total thickness t2 of the glass substrate 32 and the polarizing film 31 on the photosensitive film 4 side of the LCD 3 is set to a predetermined size. It is preferable to cover with a positive factor of suppressing light diffusion caused by the following.

It should be noted that the LCD 3 and the photosensitive film 4 being arranged in a non-contact state means that a predetermined gap exists between the display surface of the LCD 3 and the photosensitive surface of the photosensitive film 4, and the LCD 3 and the photosensitive film 4 are separated by a predetermined distance. Means that they are not in direct contact. Actually, as described above, the film pack 5
Is in contact with the LCD outside the effective range of the image on the photosensitive film 4, but there may be a space between the photosensitive surface of the photosensitive film 4 and the display surface of the LCD 3. On the other hand, the display surface of the LCD 3 and the photosensitive surface of the photosensitive film 4 are in contact with each other via a transparent glass or film having a predetermined thickness therebetween. This does not include the case where a predetermined distance is substantially maintained between the two.

In the transfer device according to the present invention, the LCD
The distance between (the display surface of) 3 and the photosensitive film 4 (the photosensitive surface) is preferably 0.01 mm to 3 mm, and more preferably 0.1 mm to 3 mm. Although this is rather a negative factor from the viewpoint of obtaining a clear transfer image as described above, it is a necessary condition in order to make the device easy to actually handle. Total thickness t of the glass substrate 32 and the polarizing film 31 on the photosensitive film 4 side
This is because it can be covered by a positive factor of suppressing light diffusion caused by making 2 smaller than a predetermined dimension.

In the transfer device of the present invention, it is preferable that the size of the image displayed on the LCD 3 and the size of the image transferred to the photosensitive film 4 be substantially the same. This is because, in the present invention, the size and weight of the apparatus can be reduced by using the direct transfer method without performing enlargement / reduction using a lens system.

The main body case 6 includes the above-described components of the present invention, that is, the backlight unit 1, the perforated plate 2,
CD3, film pack 5 (or film case 5)
1) and a case where the exposed film sending and processing liquid developing roller pair 61 and the like are housed inside. In the main body case 6, the exposed film sending and processing liquid developing roller pair 61 is connected to the loaded film pack 5.
(Or film case 51) at a position facing the exposed film outlet 53. The main body case 6 has an opening 62 for taking out the exposed film 4 from the main body case 6 at a position facing the roller pair 61. The film case 4 is inserted into the main body case 6 through an opening on the back side of the exposed film pack 5.
Is provided on the front edge of the film case 51, that is, on the LCD 3 side.

Although not shown, the transfer device of the present invention uses a driving source (motor) for driving the roller pair 61.
And a power source for driving the light source and lighting the rod-shaped light source 11 of the backlight unit 1, electrical components for controlling these components, and a digital image data supply unit for displaying an image on the LCD 3. Needless to say, it has a data processing device and a control device for receiving the data and converting it into image data for LCD display. Here, the motor 8a of the moving means 8 of the perforated plate 2 may be used as a motor for driving the roller pair 61.

The above-described transfer apparatus uses the backlight unit 1 as a planar light source and generates linear substantially parallel light using the porous plate 2 as linear light-generating means. The present invention is not limited to this, and as shown in FIG. 7, a rod-shaped lamp as a linear light source, for example, a straight tube cold cathode tube may be used. FIG. 7 is a schematic side sectional view of another embodiment of the transfer device according to the present invention, and FIGS. 8A and 8B each illustrate the concept of another embodiment of the transfer device of the present invention. FIG. 2 is a side sectional view of a main part for carrying out.

As shown in these figures, the transfer apparatus of the present invention is a linear substantially parallel light generating unit in which a linear light source 1 serving as a light source and a porous plate 2 serving as a linear light generating unit are integrated as a unit. 1A, a liquid crystal display device (LCD) 3 for displaying digitally recorded images as transmission type image display means, and a photosensitive film 4 as a photosensitive recording medium
, A linear approximately parallel light generation unit 1A, LCD 3 and film case 5
1 is included. here,
In the transfer device shown in FIGS. 7, 8A and 8B, the linear light source 1 and the perforated plate 2 are combined and integrated as a linear substantially parallel light generation unit 1A. 7 and FIG. 2 in that no
Are basically the same, except that they are different from the transfer device shown in (1). Therefore, the same components are denoted by the same reference numerals, and the description thereof is omitted, but they have the same configuration and function, and can be similarly deformed. Of course.

In the transfer apparatus shown in FIG. 7, a linear substantially parallel light generating unit 1A includes a linear light source 1 composed of a rod-shaped lamp (for example, a straight-tube cold-cathode tube) 11 and a columnar light-generating means. A unit which is integrated with the perforated plate 2 and has a function of causing light from the linear light source 1 to be incident on the transmissive LCD 3 at right angles as linear substantially parallel light; A device that emits linear light having a width in a direction (longitudinal direction) orthogonal to the relative movement direction (scanning direction of the display screen of the transmission type LCD) between the linear substantially parallel light generation unit 1A and the transmission type LCD 3. It is. Here, FIG.
The example shown in (a) is an example in which the linear substantially parallel light generation unit 1A moves with respect to the fixed transmissive LCD 3, and FIG. This is an embodiment in which the LCD 3 side integrated with the photosensitive film 4 moves with respect to the parallel light generation unit 1A. In the present invention, either of the embodiments can be applied, but since the apparatus configuration can be made compact, the linear substantially parallel light generating unit 1A
The embodiment shown in FIG. 8 (a), in which the side moves, is preferred.

The linear light source 1 used in the linear substantially parallel light generating unit 1A includes a rod lamp 11 such as a cold cathode ray tube and a reflector such as a diffusion film or a reflector. Although the light is diffused uniformly using a diffusion film or a reflection plate, the present invention is not limited to this. Any light may be obtained as long as a band-like light is obtained. Or a long and narrow organic EL panel, an inorganic EL panel, or the like may be combined into a strip-shaped slit light using a light source having a predetermined length and a slit plate, or LEDs may be arranged in a row to form a row. May be obtained. In the latter case, it is preferable to align the position of the LED and the through hole 21 of the perforated plate 2.

In this embodiment, the linear light converting means used in the linear substantially parallel light generating unit 1A is shown in FIG.
Not only the perforated plates 2 and 2A shown in FIGS. 1A and 1B can be used, but also all applicable to the transfer device shown in FIG. In this embodiment, as shown in FIG. 7, the linear light source 1 and the perforated plate 2 are used.
And the linear substantially parallel light generating unit 1A itself is attached to the endless belt 8b of the moving means 8, and the linear light converting means (perforated plate 2) is attached to the endless belt 8b of the moving means 8.
It is needless to say that the function and action of the moving means 8 and the function and action of the linear lightening means (perforated plate) by the moving means 8 are the same as those of the embodiment shown in FIG. . In the transfer device shown in FIG. 7, similarly to the transfer device shown in FIG. 1, the movement of the linear substantially parallel light generation unit 1A by the moving means 8 causes the linear substantially parallel light generation unit 1A to move.
Are sequentially transmitted to the LCD 3, the image displayed on the LCD 3 is illuminated in the form of scanning exposure, and can be transferred to the photosensitive film 4. In the transfer device shown in FIG. 7, the size of the light source can be made smaller than that of the transfer device shown in FIG. 1, so that the device configuration can be further compacted and downsized. The transfer device according to the present invention is basically configured as described above.

[0055]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The transfer device according to the present invention will be specifically described below based on embodiments. Using the transfer device shown in FIG. 2 and FIG. 8A configured as described above, the photosensitive film is mainly changed by changing each dimension such as the diameter of the through hole 21 of the porous plate 2 and the thickness of the porous plate 2. 4, the digitally recorded image displayed on the LCD 3 was recorded to obtain a recorded image. In addition, all the perforated plates 2 used had been subjected to a blackening treatment so as to have a reflectance of 2% or less.

Example 1 In the transfer apparatus shown in FIG. 2, a perforated plate 2 in which circular through holes 21 having a diameter of 2 mm were provided linearly at a pitch (p) of 2.1 mm was prepared. The thickness (t1) of the perforated plate 2 was 6 mm.
The distance (spacer thickness) from the exit side (upper surface) of the perforated plate 2 to the LCD 3 was 2 mm. As the photosensitive film 4, a film pack (image size 3 in (diagonal length)) of a mono-sheet type instant photographic film “In-Stacks Mini” (manufactured by Fuji Photo Film Co., Ltd.) was used. Further, the LCD 3 having a display screen size of 3.5 inches was prepared. The backlight unit 1 has a display screen size of 3.5 inches corresponding to the LCD 3, and the bar-shaped lamp 11 has a length of 70 mm.
Was used. The brightness at the center of the backlight unit 1 is obtained by lighting a cold cathode fluorescent lamp using a power supply having a DC voltage of 6.5 V, and obtaining a brightness of 2500 L one minute after lighting.
v, and the color of the light source is x = y =
0.297 (measured by Minolta Co., Ltd., spectral radiance meter CS1000). The moving speed of the perforated plate 2 by the moving means 8 was adjusted between 1 mm / sec and 100 mm / sec.

In this configuration, using the LCD 3 having a dot size (short side) of 0.08 mm, the substrates 32 and 36 and the polarizing films 31 and 37 on the incident side and the photosensitive film 4 side are used.
The total thickness (t2) was 0.93 mm and 0.57 mm, and the distance between the LCD 3 and the photosensitive film 4 was changed (4 levels) to perform a transfer test. (Example 2) A transfer test was performed under the same conditions as in Example 1 except that only the thickness of the porous plate 2 was changed to 10 mm.

Example 3 In the transfer device shown in FIG. 8A, the same porous plate 2 used in Example 1 was used as the porous plate 2 of the linear substantially parallel light generating unit 1A. The linear light source 1 of the linear substantially parallel light generating unit 1A has a length of 7
A transfer test was performed in the same manner as in Example 1 except that a single cold cathode tube of 0 mm was used. The LCD 3 was prepared with a display screen size of 3.5 inches. The brightness at the center of the cold-cathode tube was determined by lighting the cold-cathode tube using a power supply having a DC voltage of 6.5 V, and the brightness at one minute after the lighting was 17,600.
Lv, and the color of the light source is x = 0.
289, y = 0.281 (measured by Minolta Co., Ltd., spectral radiance meter CS1000). The moving speed of the linear substantially parallel light generating unit 1A by the moving means 8 is:
It was adjusted between 10 mm / sec and 300 mm / sec. (Example 4) A transfer test was performed under the same conditions as in Example 3 except that only the thickness of the porous plate 2 was changed to 10 mm.

In each of the above-described transfer tests, the DC voltage applied to the cold cathode tube of the light source was set between 4 and 8 V, and the scanning speed was set at 1 mm / mm so that the density of the obtained transferred image was almost the same. Adjusted between s and 300 mm / s. For the evaluation, observe the transferred image with a 10 × microscope,
The sharpness of the RGB dots was evaluated in five steps according to the criteria shown in the table of Table 1. Table 2 summarizes the results of Example 1 and Example 2, and Table 3 summarizes the results of Example 3 and Example 4.

[0060]

[Table 1]

[0061]

[Table 2]

[0062]

[Table 3]

(Examination of Results) First, as shown in Tables 2 and 3, in each of Examples 1, 2, 3 and 4 of the present invention, the display image of the LCD 3 was well transferred to the photosensitive film 4. It turns out that there is. Therefore, it can be seen that the transfer device of the present invention can satisfactorily transfer the display image on the LCD 3 to the photosensitive film 4. When the results of Examples 1 to 4 are examined in detail for the conditions (parameters) of each component, as shown in Tables 2 and 3, Examples 1 and 3
Then, when the total thickness of the substrate and the polarizing film is reduced,
It is recognized that the transfer state of the dots is significantly improved. It can be said that reducing the total thickness of the substrate on the photosensitive film 4 side and the polarizing film is also effective for improving the image quality. Further, if the distance between the LCD 3 and the photosensitive film 4 is within about 3 mm, it can be said that the image quality is not significantly affected. This is advantageous in manufacturing the apparatus in that the photosensitive film 4 (the above-described film sheet) can be easily handled.

In Examples 2 and 4, Examples 1 and 3
The thickness of the perforated plate 2 is increased (6 mm → 10 m
m), but this effect is extremely large. It is considered that this is because the light passing through the through hole 21 of the perforated plate 2 becomes closer to parallel light due to the increase in the length of the through hole 21. Regarding the thickness of the perforated plate 2, the ratio “thickness of the perforated plate / dimension of the through-hole of the perforated plate” is set as one coefficient, and is set to a certain value or more from the relationship with the size of the through hole 21 provided in the perforated plate 2. It can be understood that the effect is great if the value is set to be large. That is, it can be said that the above-mentioned value indicates the degree to which light passing through the perforated plate approaches parallel light.

Specifically, it is effective to reduce the size of the through-hole or to increase the thickness of the perforated plate.
The former is better. In addition, the size of the through hole is limited to about 0.2 mm due to manufacturing restrictions, and is practically 0.5 m.
About m to 2 mm is good. It turns out that about 3 mm-20 mm of thickness is practical. Further, in the above example, the case where the value of the above “thickness of the perforated plate / dimension of the through hole of the perforated plate” is 3 or 5, is shown in Tables 2 and 3.
It can be seen that this value is more preferably, for example, 7 or more. As described above, according to the transfer devices according to the above embodiments, the sharpness of a transferred image can be significantly improved. In addition, since the perforated plate 2 has a linear structure, the production of the perforated plate 2 is facilitated, and the cost can be significantly reduced. That is, for example,
0.5 m on a perforated plate equivalent to InStacks mini (62 mm x 46 mm), which is a photosensitive film used in Examples 1 to 4.
When through holes of mΦ (diameter) are pierced in the closest density at an arrangement pitch of p 0.7 mm, it is necessary to open approximately 7000 to 8000 through holes. On the other hand, when several rows of through holes are drilled as in the perforated plate 2 of the present invention, even if the through holes are drilled in the longitudinal direction of 62 mm of the in-stack mini, it is about one row. 90 to 100, 40 in 4 rows
It suffices if there are less than 0 through holes. Therefore, the perforated plate used in the present invention has an effect that it can be manufactured easily and inexpensively as compared with a planar perforated plate covering the entire region of the photosensitive film.

In the transfer apparatus using the perforated plate 2A shown in FIG. 3B, the same transfer test as in each of the above embodiments was performed. The result of the transfer test of the transfer device according to this embodiment was substantially the same as the function of the transfer device using the porous plate 2 shown in FIG. Therefore, it can be seen that the functions of the transfer devices of both embodiments are substantially the same.

From the above results, the effect obtained by the transfer device of the present invention is clear. That is, in the transfer device according to the present invention, the transfer image can be obtained from the transmission type image display means, and the sharpness of the transfer image can be significantly improved by selecting various parameters. is there.

The above embodiment is an example of the present invention, and it goes without saying that the present invention is not limited to this. For example, a backlight having various functions can be used as far as possible, such as a backlight as a light source and an LCD as an image display means. Further, in the embodiment shown in FIG. 5, a cylindrical lens, a spherical or hemispherical lens, or the like can be used instead of the rod lens.

[0069]

As described above in detail, according to the present invention, it is possible to realize a transfer device which can be reduced in size, weight, power consumption and cost with a simple structure. It is possible. The effect can be further enhanced by adding the above-described additional conditions (selecting parameters) to the above basic configuration.

Further, according to the present invention, since substantially parallel light for vertically entering the transmission type image display means is obtained as linear substantially parallel light by the linear light conversion means, a large display screen can be obtained. However, there is no need to use a large-area (large-size) grid or the like which is difficult and costly to manufacture, and the cost can be reduced.
Further, in the present invention, in the case of obtaining linear substantially parallel light by a combination of a linear light source and a linear light means, a planar light source (backlight) in which it is difficult to emit uniform light over the entire surface. As compared with the case of using a light guide plate, since a substantially parallel linear light having a more uniform light intensity in the arrangement (longitudinal) direction can be easily obtained and the fluorescent tube itself can be used as the linear light source, Body), reflection sheet, lens sheet,
Many members such as a prism sheet and a diffusion sheet are required, and there is no need to use an expensive planar light source (backlight), and the cost of the light source itself can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic side sectional view of an embodiment of a transfer device according to the present invention.

FIG. 2 is a sectional side view of a main part for explaining the concept of the transfer device shown in FIG. 1;

FIGS. 3A and 3B are a perspective view and a perspective view, respectively, showing the structure of one embodiment of a perforated plate used as a linear light-forming means in the transfer device shown in FIG. 1; FIG.

4 (a), (b), (c) and (d) are plan views each showing an example of the arrangement of through holes in the perforated plate shown in FIG. 3 (a).

FIG. 5 is a perspective view showing a structure of one embodiment of a transmission type liquid crystal image display device used in the transfer device shown in FIG.

FIG. 6 is a perspective view showing a structure of an embodiment of a film pack used in the transfer device shown in FIG.

FIG. 7 is a schematic side sectional view of one embodiment of a transfer device according to the present invention.

8 (a) and 8 (b) are cross-sectional views of a principal part for explaining the concept of an embodiment in which the linear substantially parallel light generation unit side of the transfer device shown in FIG. 7 moves and an embodiment in which the LCD side moves. It is.

FIG. 9 is a side view illustrating a configuration of an example of a conventional printing apparatus.

FIG. 10 is a perspective view showing the configuration of another example of the conventional printing apparatus.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Light source (backlight unit, linear light source) 1A Linear substantially parallel light generation unit 11 Bar-shaped lamp (cold-cathode tube) 2, 2A Perforated plate 21 Perforated hole of perforated plate 3 LCD 31, 37 Polarizing plate (film) 32, 36 substrate 33,35 electrode 34 liquid crystal layer 4 photosensitive film (film for instant photography) 5 film pack 51 film case 52 notch 53 take-out of exposed film 54 height of edge (stepped portion) of film pack case 6 Main body case 61 Exposure of exposed film and processing solution developing roller pair 62 Exposure of exposed film

Claims (1)

[Claims] 1. A light source, a linear light converting means, a transmission type image display means, and a photosensitive recording medium are arranged along a traveling direction of light from the light source, and transmitted through the image display means. A transfer device for transferring a display image to the photosensitive recording medium, wherein the linear light-forming means converts the light from the light source into linear substantially parallel light, and vertically enters the display surface of the image display means. A transfer device configured to relatively scan the display surface of the image display means with the linear substantially parallel light.