JPH0456849A - Stereoscopic photograph color image forming method - Google Patents

Abstract

PURPOSE:To easily obtain a stereoscopic photograph color image having high quality at low cost by engaging and aligning a lenticular sheet with a color image forming layer by means of a specific resister mechanism. CONSTITUTION:A resister pin 6 or a resister mark is engaged and aligning with one of the up and bottom edge parts of the image exposing surface of a silver halide color sensitizing material having a color image forming layer 3 on a supporting body. The lenticular lens sheet 2 and color image forming layer 3 are engaged and aligned by the resister mechanism provided on the distance of the 1/4 - 3/4 of the length of a side in the same right and left (lateral) direction as that of the array of both eyes. Thus, a stereoscopic image having sharpness and stereoscopic effect can be easily and simply obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for easily producing high-quality color images (slides and prints) that can be viewed stereoscopically using a lenticular method.

(Prior art) Euclid (
Since Euclid (Euclid) pointed out that ``a sense of perspective is created by the parallax between the two eyes,'' many inventions have been made, especially in the 17th century. For example, Photographic Technology Handbook Chapter 20 (863-881
Page) (Published by Corona Publishing, January 1987).

How to make photo prints with lenticular sheets,
In particular, there are several descriptions of how to make lenticular sheets, how to attach lenticular sheets to photographic prints, etc.9 For example, U.S. Patent No.
No. 918705, No. 2726154, No. 375125
No. 8, No. 3960563, No. 4037950, No. 4
No. 806407, JP-A-49-29640, JP-A No. 62-
6245, and Japanese Patent Publication No. 58-48890.

There are also many ideas for methods of photographing, printing, or projecting images using the lenticular method. For example, U.S. Patent Nos. 3,852,787, 3,895,867, and 3,953
No. 869, No. 4059354, No. 4132468,
No. 4650282, No. 4766684, No. 4852
No. 972 and Japanese Patent Publication No. 53-33847.

In the multicolor printing process, a so-called ``register bin system'' is used in which the position is fixed with a register bin on the ``grip side J'' of the material for alignment in each process of color original color separation film, plate making, and printing.

(For details, refer to pages 79 to 81 of Lithographic Printing Technology, published by the Lithographic Printing Technology Editorial Committee, published in 1973), and it is also known to use alignment marks.

(RWI to be solved by the present invention) To take stereoscopic photographs, it is necessary to use a so-called special stereo camera, which is expensive. Nevertheless, the stereoscopic photographs obtained from the negative images obtained with the camera were also unnatural, with poor color image sharpness and color unevenness similar to color shift. Further, in stereophotographic color photosensitive materials, at least two film originals obtained by photographing one main subject using at least two photographic lenses with parallax are printed as one image through a lenticule. Therefore, in order to solve the above-mentioned unnaturalness, it is desirable that the printed image obtained through each lenticule be formed on the photosensitive layer of the color photosensitive material with a sharpness that is less than the allowable blur. It will be done.

By the way, the lenticular sheet is at least 0.3
- Since the lenticular sheet has a thickness greater than 100% and has lenticules on its surface, it is extremely difficult to uniformly apply multiple color image forming layers to the back surface of the lenticular sheet at a predetermined thickness, requiring special ingenuity. be. Conventionally, a method has been used in which a flexible support is coated with multiple color image forming layers and the photosensitive film is laminated onto a lenticular sheet. However, even with this method, it is difficult to bond the lenticule and the color image forming layer at a constant distance and at low cost.

In another embodiment, a lenticular sheet and a photosensitive material having a color image forming layer are closely bonded, image exposure is performed through the lenticule, and then the color photographic material is subjected to color development processing. A method of determining the position by overlapping the lenticule by mistake may be considered.

However, this alignment requires a lot of manpower and time. One method for alignment is the register bin system in multicolor printing, in which one ``grip side'' is placed on the flat bed or plate cylinder.
Even if the method of fixing the lenticular sheet with a bottle is applied, the lenticular sheet and color N image forming layer are first aligned and exposed to light, then peeled off and the color image obtained by development processing is applied to the lenticular sheet.・Re-alignment with the sheet; secondly, during the development process, the support carrying the color image forming layer expands and contracts significantly more than the lenticular sheet; and thirdly, the radius of curvature of the lenticule fourthly, the color imaging layer consists of a multilayer color imaging layer consisting of at least three layers; No. 5, there is a problem in that it is difficult to achieve sufficient alignment accuracy because two or more color images are compressed and printed onto the same screen.

An object of the present invention is to provide a method for easily and inexpensively obtaining high-quality stereoscopic color images (slides or prints) using a lenticular sheet and a photosensitive material having a color image forming layer on a support. That's true.

(Means for Solving the Problem) The inventors solved the problem by using a photosensitive material having a lenticular sheet and a color image forming layer on a support by devising the alignment position and alignment method of register pins. It has been found that images with even higher image quality and excellent three-dimensional effect can be obtained by using a specific support.

That is, the present invention is a stereophotographic color image forming method as described below.

(1) A lenticule (1 lenticule) is placed on the surface of a transparent substrate.
In the stereophotographic color image forming method of forming a color image on the back side of a lenticular sheet having a repeating structure as described in e), register pins or register marks are attached to a silver halide color photosensitive material having a color image forming layer on a support. at least one of the upper and lower edges of the image exposure surface, and at a distance of 1/4 to 3/4 of the length of the side in the left and right (horizontal) direction in the same direction as the alignment direction of both eyes. A stereophotographic color image forming method characterized by engaging and positioning the lenticular sheet and a color image forming layer (silver halide color photosensitive material) using a register mechanism.

(2) When imagewise exposing a silver halide color photosensitive material through a lenticular sheet, aligning the back surface of the lenticular sheet and the color image forming layer (silver halide color photosensitive material) using the register mechanism,
After image exposure, after peeling off and forming a color image on the color image formation layer through color development processing, the back surface of the lenticular sheet and the color image formation layer are again positioned using substantially the same register mechanism as described above. 2. The stereophotographic color image forming method according to claim 1, wherein the two are finally fixed.

(3) Claim (1), wherein the lenticular sheet has a thickness of 0.3 to 2 mm, and the support supporting the color image forming layer is a reflective support having the following characteristics A or B.
Or the stereophotographic color image forming method described in (2).

A: Support with a reflective layer containing 12% by weight or more of a surface-treated titanium oxide white pigment.

B: A support having a specular reflective or type 2 diffuse reflective surface with a total surface reflectance of 0.7 or more.

Next, the present invention will be explained.

In the present invention, a stereoscopic photograph refers to a photograph that has a mechanism that allows stereoscopic viewing.

A lenticular sheet is a sheet with lenticles arranged on its surface. A lenticule is a sheet in which small convex lenses are arranged densely and regularly in a semicylindrical shape or a fly's eye shape.

The thickness of the lenticule and the radius of curvature of its surface depend on the refractive index of the material used. The period or repetition length of the lenticule depends on the field angle and refractive index of the lenticule. The repeating length (pitch) of the lenticule is 500 μm or less, preferably 300 μm to 50 μm, and the thickness of the lenticule or its radius of curvature is 400 to 700 nm.
It is determined that the exposure image by m wavelength light is substantially focused on the silver halide photosensitive layer of the present invention. The thickness of the lenticular sheet is usually 11 or less, but 300
The lenticule or lenticular sheet, preferably from μm to 100 μm, has a visible light refractive index (e.g. η
d) is preferably higher than 1.40, in particular it is preferably comprised of a resin having a value of 1.40 to 1.70. It is also possible to take a form in which two or more films made of different materials are joined.

Lenticles or lenticular sheets are preferably made using thermoplastic resin by molding or calendering, or they can also be made by injecting a liquid monomer into a mold and causing a polymerization reaction to turn it into a resin. The resins used in the present invention include polyolefins (especially preferably polyethylene and polypropylene), polystyrenes (for example, polystyrene and acrylonitrile butadiene styrene resin), poly-p-xylylenes, polyacrylates, polymethacrylates, Polyvinyl chlorides, polyvinylidene chlorides, polyacrylonitrile, polyvinyl ethers, polyethers, polycarbonates, polyesters, polyamides, polyurethanes, etc., and the term "class" includes homopolymers and copolymers.

More specifically, for example, US Pat. ■48.05
No. 9, No. 2,763,551, No. 3゜294.532
No. 3,275.494, No. 3.484,403, No. 3,419.408, British Patent No. 1133224
The methods described in Japanese Patent Publication No. 46-41116, Japanese Patent Publication No. 47-14952, Japanese Patent Application Laid-open No. 62-6245, etc. are used.

In the present invention, separately manufactured lenticular
It is preferable to provide an adhesive layer on the top of the image forming layer (referred to as a developed silver halide photosensitive layer) obtained by imagewise exposure of the sheet through a lenticular sheet and color development processing to bond the sheet.

As a method for joining lenticular sheets, methods described in, for example, Japanese Patent Application Laid-open Nos. 62-6245, 49-29640, and 1987-48890 can also be used.

For bonding the lenticular sheets of the present invention, it is preferable to use a hot-melt adhesive, a polycondensation adhesive, or a solvent-free adhesive. For the adhesive layer, phenol resins, epoxy resins, polyvinyl acetate, polyurethanes, polyacrylate emulsions, etc. are used.

The refractive index of the lenticule forming material affects the thickness and curvature of the lenticule, but it is relatively high (for example, 1°50 or more).
And stable ones are preferable 0 For example, vinylidene chloride resin (refractive index 1.60 to 1°63), hard vinyl chloride resin (refractive index 1.52 to 1.55), high density polyethylene (refractive index 1.54) ), acrylic resin and methacrylic resin (refractive index of 1.50 to 1, 58).

The color image forming layer used in the present invention is usually a silver halide photosensitive layer used in a color photographic light-sensitive material, particularly a silver halide photosensitive layer containing a color coupler. In particular, Japanese Patent Application Nos. 2-64437 and 2-76972.
This is a silver halide photosensitive layer containing the color coupler described in No. 2-94121. Also, JP-A-6
It may also be a silver halide photosensitive layer containing a dye-releasing diffusion type coloring material as described in No. 2-253159 or JP-A No. 1-13546. In this case, it is preferable to provide a transparent dye image-receiving layer on the back side of the lenticular sheet.The above-mentioned color image forming layer groups are coated on a normally used transparent, translucent or reflective support with an undercoat layer interposed therebetween. It is coated in multiple layers. In particular, the reflective support contains 1 titanium oxide white pigment.
A support having a surface layer or a reflective layer containing 2% by weight or more, preferably 15 to 60% by weight, and a specular reflective or type 2 diffuse reflective support with a total surface reflectance of 0.7 or more, Noticeably superior image sharpness, color saturation,
In particular, it is useful in the present invention because it increases the brightness of red to yellow colors and significantly improves the three-dimensional effect and sharpness of images in the configuration of the present invention.

As the transparent support that can be used in the present invention, transparent films such as cellulose nitrate film and polyethylene terephthalate, which are usually used in photographic materials, can be used.

The "reflective support" that can be used in the present invention refers to one that enhances the reflectivity and makes the dye image formed in the silver halide emulsion layer clearer. Includes those coated with a hydrophobic resin containing a dispersed light-reflecting substance such as titanium oxide, zinc oxide, calcium carbonate, and calcium sulfate, and those using a hydrophobic resin containing a dispersed light-reflecting substance as a support. 0 For example, baryta paper, polyethylene coated paper, polypropylene synthetic paper, transparent support with a reflective layer or a reflective material, such as glass plate, polyester film such as polyethylene terephthalate, cellulose triacetate or cellulose nitrate. , polyamide film, polycarbonate film, polystyrene film, vinyl chloride resin, etc.

As a reflective support that can be preferably used in the present invention, a support that has a specular reflective or type 2 diffuse reflective metal surface can be used. The metal surface has a spectral reflectance of 0.0 in the visible wavelength range. 5 or more, even 0. A value of 7 or more is preferable, and the metal surface is preferably roughened or metal powder is used to make it diffusely reflective. The metal may be aluminum, tin, silver, magnesium, or an alloy thereof, and the surface may be a surface of a metal plate, metal foil, or thin metal layer obtained by rolling, vapor deposition, plating, or the like. Among these, it is preferable to obtain the metal by vapor-depositing the metal onto another substrate. Preferably, a layer of water-resistant resin, particularly thermoplastic resin, is provided on the metal surface. It is preferable to provide an antistatic layer on the side of the support of the present invention opposite to the side having the metal surface. For details of such supports, see, for example, JP-A-61-210346, JP-A-63-24247, JP-A-63-24251, and JP-A-63-24251.
It is described in No. 24255, etc.

These supports can be appropriately selected depending on the purpose of use.

As the light-reflecting substance, it is preferable to use pigment particles whose surfaces have been treated with di- to tetrahydric alcohol in order to knead the white pigment uniformly and densely in the presence of a surfactant.

The occupied area ratio (%) of white pigment fine particles per defined unit area is calculated by dividing the observed area into adjoining unit areas of 6 μm x 6 μm and projecting onto that unit area. It can be determined by measuring the occupied area ratio (%) (R4) of fine particles. The coefficient of variation of the occupied area ratio (%) can be determined by the ratio S/R of the standard deviation S of R8 to the average value (R) of R8. The number of target unit areas (n) is preferably 6 or more, and therefore the coefficient of variation s/R can be determined by s/R.

In the present invention, the coefficient of variation of the occupied area ratio (%) of the pigment fine particles is preferably 0.15 or less, particularly 0.12 or less. If it is 0.08 or less, the dispersibility of the particles can be said to be "substantially uniform."

/ / As the silver halide used in the present invention, silver chloride, silver bromide, silver (iod)chlorobromide, silver iodobromide, etc. can be used, but especially for the purpose of rapid processing, silver iodide can be used. It is preferable to use a silver chlorobromide or silver chloride emulsion having a silver chloride content of 90 mol % or more, more 95% or more, particularly 98% or more.

In the photosensitive material according to the present invention, a hydrophilic colloid layer is incorporated into a hydrophilic colloid layer for the purpose of improving image sharpness.
O0337, No. 49OA2, pages 27 to 76,
Dyes that can be decolorized by treatment (especially oxonol dyes) are added to the material when the optical reflection density at 680 nm is 0.
70 or more, or add titanium oxide surface-treated with di- to tetrahydric alcohols (for example, trimethylolethane) to the water-resistant resin layer of the support at 12% or more (more preferably 14%). (wt% or more) is preferably contained.

Further, in the light-sensitive material according to the present invention, it is preferable to use a color image preservation improving compound as described in European Patent EP 0,277,589A2 together with a coupler.

Particularly preferred is the combination with a pyrazoloazole coupler.

ff1l, a compound (F) that chemically bonds with the aromatic amine developing agent remaining after the color development process to produce a chemically inert and substantially colorless compound and/or a compound that remains after the color development process For example, the use of a compound (C) that chemically bonds with the oxidized form of an aromatic amine color developing agent to produce a chemically inert and substantially colorless compound may be used simultaneously or singly, for example, during storage after processing. This is preferable in order to prevent staining and other side effects caused by the formation of a coloring dye due to the reaction between the color developing agent or its oxidized product remaining in the film and the coupler.

Furthermore, in order to prevent various types of mold and bacteria that propagate in the hydrophilic colloid layer and cause image deterioration, the light-sensitive material according to the present invention contains an anti-mold agent as described in JP-A No. 63-271247. It is preferable to do so.

The support used in the photosensitive material according to the present invention may be a white polyester support for display or a support in which a layer containing a white pigment is provided on the support on the side having a silver halide emulsion layer. In order to further improve sharpness, it is preferable to coat an antihalation layer on the side of the support coated with the silver halide emulsion layer or on the back side.

In particular, it is preferable to set the transmission density of the support in the range of 0.35 to 0.8° so that the display can be viewed in both reflected light and transmitted light.

The photosensitive material according to the present invention may be exposed to visible light or infrared light, and the exposure method may be low-intensity n-light or high-intensity short-time exposure, especially in the latter case, single pixel light exposure may be used. A laser scanning exposure method in which the exposure time is shorter than 10 −4 seconds is preferred.

Further, during exposure, it is preferable to use a band stop filter as described in US Pat. No. 4,880,726, which eliminates light color mixture and significantly improves color reproducibility.

Exposed light-sensitive materials can be subjected to conventional black-and-white or color development processing, but in the case of color light-sensitive materials, for the purpose of rapid processing, it is preferable to carry out bleach-fixing processing after color development.
Particularly when the above-mentioned high silver chloride emulsion is used, the pH of the bleach-fix solution is preferably about 6.5 or less, more preferably about 6 or less, for the purpose of promoting desilvering.

The silver halide emulsion and other materials (additives, etc.) and photographic configuration N (N arrangement, etc.) applied to the light-sensitive material of the present invention, and the processing method and process used to process this light-sensitive material. As additives, the following patent publications, especially European Patent EP 0,355.66OA2 (Japanese Patent Application Hei 1-1)
07011) are preferably used.

Furthermore, as a cyan coupler, in addition to the diphenylimidazole cyan coupler described in JP-A-2-33144, European Patent No. 1! The 3-hydroxypyridine cyan couplers described in P0,333.185A2 (particularly the 4-equivalent couplers of coupler (42) listed as a specific example with a chlorine leaving group to make them 2-equivalent), the couplers (6 ) and (9) are particularly preferred) and JP-A-64-32
Cyclic active methylene cyan couplers described in No. 260 (especially coupler examples 3.8 listed as specific examples)
．． 34 is particularly preferred).

The first feature of the present invention is that the color image forming layer of a color photographic light-sensitive material is provided with a color image forming layer, particularly a group of color image forming layers, on the back side of a transparent sheet having a repeating lenticule structure on its surface. A method of forming a color image that includes a step of engaging and aligning with a register pin, in particular, engaging with a register pin, aligning and imagewise exposure, and after forming a color image, substantially the same position as the imagewise exposed position. The register mechanism of the present invention, which is engaged with the lenticular sheet by a similar register mechanism, defines the relative position of the lenticular sheet and the color image forming layer of the color photosensitive material used in alignment. , it is a special mechanism that ultimately fixes it.

The first register mechanism is a physical alignment mechanism using register pins.

The second register mechanism is a photochemical alignment mechanism. For example, apart from the image, a mark for alignment is provided on the lenticular sheet in advance, and when both are aligned and exposed, the mark is transferred or imprinted onto the color image forming layer, or by color development processing for alignment. Get the mark. A method of aligning both sides by overlapping the alignment marks on both sides.

The third is a magnetic alignment mechanism. In other words, there is a method of providing magnetic marks on both sides in advance and aligning the magnetic marks. There is also a method that combines these methods.

A second feature of the present invention is that both the lenticular sheet and the color photographic material having a color image forming layer are movable sheets, flexible films or papers,
In the process of color image formation, alignment of objects having different elasticities is performed with a high degree of accuracy. The expansion and contraction ratio of the color photosensitive material of the present invention in the color development process ranges from 0.1 to 1%.

On the other hand, the permissible positioning accuracy is most strictly required in the left-right (lateral) direction, and is approximately 30 μm or less, preferably 10 μm or less, and even 5 μm or less.

The precision required for vertical positioning of a Kamapoko type lenticule (vertical radius of curvature is 5- or more) is low, 1 to 5.
There is no problem in the circle. Compared to alignment in multi-color printing, in the method for creating a stereoscopic photograph according to the present invention, an image distorted by a plurality of binocular lenses or more is compressed at a magnification of twice or more. Therefore, alignment accuracy is required in the left-right direction. The direction of compression coincides with the direction in which both eyes are located, that is, the left-right (horizontal) direction, and often coincides with the direction of the minimum radius of curvature of the lenticule.

In order to reduce the effect of the difference in expansion and contraction of the color photosensitive material used on misalignment, at least one first register pin that also fixes the position in the left and right, preferably up and down (vertical) directions, is provided on one side. It is preferable to provide it at the edge of the frame, especially at the center of the side length in the left and right direction.

At least one other register pin (e1mO)
It is preferable to provide the edge so that the position in the left and right direction is fixed. For example, simply place it in the center of the left and right sides of the edge at the other end.
By providing a second resistor pin, or by providing a first resistor pin.
For example, second register bins are provided on the left and right sides of the register pin so as to also fix the vertical position.

(Fig. 3 e, d) The third feature of the present invention is that the distance between the lenticule and the color image forming layer is kept constant.
Particularly during image exposure, the purpose is to bring them into close contact.

Therefore, when the lenticular sheet and the color image forming layer are overlapped and image-wise exposed, the register mechanism according to the present invention is used for positioning, and the periphery thereof is crimped using a mechanical restraining mechanism, for example, a spring-loaded restraining frame. Alternatively, it is possible to use so-called vacuum contact, in which the gaps between the lenticular sheet and the color image forming layer, as well as between the color photosensitive material and the exposure table surface, are eliminated by applying low pressure or vacuum.

In order to finally fix the lenticular sheet and the color image forming layer using the register mechanism of the present invention, there is a method of joining only the edges or the entire screen using the adhesive layer or adhesive described above. can be used.

Next, a specific example of the register mechanism will be shown.

FIG. 1 shows a printing exposure apparatus which is provided with a cutter table (11) which is substantially connected to an exposure table (4) and which punches a register bin hole (5). A color photosensitive material (3) conveyed from a roll of color photographic paper (12) is provided with a bottle hole (5) on a cutter table by a cutter blade (10). Furthermore, the exposure table (4) is placed at the enlargement exposure opening (1).
) is fixed by a resistor pin (6) set at . A lenticular sheet (2) is fixed onto the color photographic material (3) by means of pre-provided register bin holes (5). Furthermore, the lenticular sheet holding frame (7) pressurizes the two so that they come into close contact with each other.

Next, using the enlargement exposure aperture (1), a color negative original of two or more frames, which has been previously photographed using a simple packaging unit equipped with a multi-lens lens, is
Compression printing is performed using an optical system having the mechanism described in the specification of No. 7. The printed color photographic material is subjected to color development processing using an automatic color developing machine, dried, and then cut. The resulting color print is registered using register bins with the same lenticular sheet used in combination during exposure to obtain a stereographic color image. To make it easier to select the same lenticular sheet,
It is best to put a code or signal mark that can be burned onto the lenticular sheet in advance.

FIG. 1 is a plan view of the enlarged exposure aperture of FIG. 1a.

Figures 2a to 2d are cross-sectional views illustrating the register mechanism, and Figures 2a to 2c are examples of physical alignment mechanisms. b shows an example in which the register bins are provided with convex portions on the back surface of the lenticular sheet.

d shows an example of a photochemical alignment mechanism.

The register mark (13) can be formed on the color image forming layer by printing and color development.

In addition, the positioning mechanism can also be obtained by applying the magnetic guide mechanism described in Japanese Patent Application Laid-Open No. 2-17208.

FIGS. 3a to 3e are diagrams illustrating the shape of the register bin and the arrangement I on the printing exposure surface.

The shape of the register bin may be circular (cylindrical, conical, etc.), square, or rectangular. The first register bin has a shape that allows its position to be fixed at least in the left and right (horizontal) and up and down (vertical) directions. The second register bin or other pin and bin hole can also be shaped and sized to be "relaxed" in one direction. "Easy" means that a large bottle hole is provided in a predetermined direction (indicated by ↑ in Figures 2 and 3) with respect to the register bin by the permissible distance. This has the advantage of making the alignment work easier without substantially affecting the accuracy of alignment between the color image forming layer and the color image forming layer.

3a (comparative example) and FIG. 3b illustrate the arrangement of register bins in which register bins are provided at the edges in the left-right direction and approximately 1/4 of the sides in the left-right direction, respectively.

C and d illustrate an arrangement in which the first register bin (6) and the second register bin are provided on 1/2 of the same side. e indicates the arrangement of the first register bin and the second register bin (6').

The color light-sensitive material used in the present invention can be any color light-sensitive material for printing depending on whether the color light-sensitive material for shooting is a color negative type, a color reversal type, or a direct positive type. Compatible with color negative originals obtained from color negative photosensitive materials for use with color photographic paper, color duratrans type photosensitive materials, color positive photosensitive materials (film), etc.; also compatible with color positive originals obtained from color reversal photosensitive materials for photography. Color reversal/photographic paper or direct positive/photosensitive material (photographic paper or film) can be used; color image diffusion type or heat developable color photosensitive material can also be used depending on the color negative or color positive original.

Next, an example will be described. However, it is not limited to this.

Example = 1 (Creation of lenticular sheet) Lenticular sheet A Polymethyl methacrylate (refractive index ηd is 1°492
), the pitch is 0.30 m+, the radius of curvature of the lenticular lens is 0.31 mm, and the thickness is 0. I created a sheet for 90 cabinets and gave it an A.

Lenticular sheet B using polycarbonate (refractive index ηd 1.600),
A lenticular sheet B was obtained with a pinch of 0.30M, a radius of curvature of the lenticular lens of 0.261, and a thickness of 0.65 mm.

(Preparation and photography of color photographic light-sensitive material packaging unit with compound eye lens and photography function) According to the manufacturing method described in JP-A-64-544, and also in Utility Model Application No. 2-16507 and JP-A-2-1989 16651
A packaging unit main body with a trinocular lens and photography function was created by having the structure of the lens-equipped film unit described in No. 1, but changing the structure as follows. It has a first storage chamber in which unexposed photosensitive film is wound and stored in advance, and a second storage chamber in which it is wound and stored in a cartridge after shooting, and three openings with the same optical system are provided between them. . The optical system includes a photographic lens with a focal length of 34 mm and an aperture value (
F value) is 11 aperture, and shutter speed is 17.0
The second lens and shutter are set so that the regulating surface of the photosensitive surface of the photosensitive film forms an arc with a radius of curvature of 125 cm.

The distance between the optical axes of the farthest optical systems was 76 square meters. The shutter button is linked to the two optical systems, and the take-up knob is common, moving approximately 115 mm for each frame and then remaining fixed. The finder was placed approximately in the center of the three optical systems.

The photographing distance of this optical system was from infinity to close range 1 m.

Fuji Color Super HG400 film (product name: manufactured by Fuji Photo Film ■) was cut into 135 size pieces and rolled up to a length of 115 cm so that 6 frames could be taken. .

Note that it is preferable that the zero light emitting section, which can be provided with an auxiliary illumination mechanism according to the description in JP-A-1-152437, be provided in the middle of the three optical systems.

Equipped with a 3 11ff lens used in the present invention and a shooting function.
An original for printing was created as follows using a color photosensitive material packaging unit.

Photographs were taken outdoors under clear skies at a distance of approximately 3.6 m from the lens position, with the camera held horizontally and featuring a woman, test chart, and flowers as subjects.

After the photo was taken, the film was wound up and removed from the packaging unit together with the cartridge, and standard color development was performed using a Fuji Photo Film ■ minilab Champion 23S model to obtain original prints.

The standard color development process used was Fuji Photo Film color development process CN-16Q process.

(Preparation of color photosensitive material) A silver halide color photosensitive material having a paper support laminated on both sides with polyethylene and whose surface is subjected to corona discharge treatment is disclosed in European Patent EP 0,355.66OA2 (corresponding patent application No. 1-107011). No., USS, N, 07/393.
747) 214 (multilayer color paper) was used for the sample described in Example 2 of the publication. However, as a bisphenol compound, II[-1
0, yellow coupler (ExY), cyan coupler (ExC), image stabilizer (Cpd-8), solvent (S
olv-6) and the oxonol dyes were changed to the following compounds. Furthermore, the following compound was used as a preservative (antibacterial and antifungal agent).

(ExY) Yellow coupler zHs R=CH.

and R=C,l(.

and H 1: 1: ■ (molar ratio) mixture (Cpd 8) with color image stabilizer: (molar ratio) mixture (Cpd-10) preservative (CPd-11) preservative (25°0 ■/Bo) (50゜0■/Bo) 1= (molar ratio) mixture (ExC) Cyan coupler (Solv-6) solution (oxonol dye) (10■/I) and (10■/ITr) ( 40■/a) (20*/n() (Creation of 3D photographic color image) Lenticular sheets A and 8 obtained in Example-1 were placed into a size of about 120m x 82.5m, respectively, and lenticular in the left-right (horizontal) direction. Cut it so that the curvature of is minimized and the semicircular lines match in the vertical (vertical) direction. According to the shape and position of the two register pins with a diameter of 3 m,
A maximum of four round pin holes (6 and 6') were provided in the - circle and in the vertical direction, respectively.

A roll of the color photosensitive material (multilayer color photographic paper) mentioned above (
A roll width of 782.5 cm) was set on the exposure table/cutter table. First, use the cutter stand (11) to cut the register pin hole (
6 and 6'), then align the pin holes (6 and 6') with the register pin (6) of the enlargement exposure aperture and place it on the exposure table.
A color photosensitive material was fixed.

Furthermore, using the same register pin (6),
The previously prepared lenticular sheet was aligned and fixed. The lenticular sheet was further held down by a holding frame (7), and the color image forming layers (red-sensitive layer, green-sensitive layer, and blue-colored layer) of the color photosensitive material were brought into close contact with the back surface of the lenticular sheet.

A color negative original set of three frames obtained using the color photographic light-sensitive material packaging unit with a photographing function equipped with a trinocular lens was compressed and printed. The lenticular sheet was removed and fed frame by frame. This operation was repeated to perform a series of enlargement printing to obtain a roll of exposed color photosensitive material.

The number of the lenticular sheet used and the frame number of the printed color photosensitive material were recorded so that they could be used in combination later.

A color image was obtained from the exposed color photosensitive material by the processing method described in Example 2 of the aforementioned European Patent Publication No. EP 0,355.66OA2 using an automatic paper processor.

The color print obtained by developing and drying is 17■ (
It was cut into 82.5 katakuri).

Place the color print on the bonding table placed in the same manner as the two register pins placed on the exposure table in Figure 1, apply an epoxy adhesive solution to the back side of the lenticular sheet, and immediately place the lenticular sheet in the register. They were aligned using pins and strongly pressed to adhere. A stereoscopic color image was observed from the front side of the lenticular sheet.

It was possible to obtain color photographic prints that could be viewed stereoscopically without any color shift.

As a comparative example, as shown in FIG. 3a, a register pin was provided at one end in the left and right direction for alignment, and a color photographic print was obtained in the same manner.

With respect to the end where the register pin was provided, it was observed that blurring or color shift of the stereoscopic photographic image occurred due to poor alignment from the center to the other end.

Similar trends were observed whether lenticular sheets A or B were used.

Example-2 (Creation of reflective supports WP-1 to WP-3 having white pigment-containing resin layers) A polyethylene layer containing a white pigment as shown in Table 1 below was laminated to paper in the same manner as above, and reflective support was prepared. A support was obtained.

Table 1 (Preparation of second type diffuse reflective support WP-4) European Patent No. 253390A-2 and US Patent No. 4851327
It was prepared according to the method described in the specification. That is, as a substrate, 25 μm filled with 2% silica with an average particle size of 3 μm
The polyethylene terephthalate film was placed in a vacuum deposition apparatus and vacuum deposition was performed at a vacuum degree of 10-'torr to form an aluminum deposited film with a thickness of 600 angstroms on the surface of the substrate. The total surface reflectance was 0.82 in the visible range.

A water-resistant adhesive layer with the following composition was diluted with ethyl acetate.
g/rrf and dried.

Copolymer of vinyl chloride/vinylidene chloride/hinyl acetate/maleic anhydride (weight ratio 66/10/20/4') -1111-56 adduct of tolylene diisocyanate and trimethylolpropane --- --37 Eboxidized fatty acid alkyl ester (molecular weight 350) 7th, L
A timber valve consisting of 20 parts BSP and 80 parts LBKP is processed into Kaidayran Freeness 3 using a disc refiner.
Beaten to 00 cc, sodium stearate 1.0
0.5 parts of anionic polyacrylamide, 1.5 parts of aluminum sulfate, 0.5 parts of polyamide polyamine epichlorohydrin. 5 parts, 0.5 parts of alkyl ketene dimer,
Each was added in an absolute dry weight ratio to the wood pulp, and paper with a basis weight of 160 g/rrr was made using a Fourdrinier paper machine.

Is the density based on the asin calendar? ) 1.0 g/d. After corona discharge treatment of this base paper, low density polyethylene (M1 = 7 g/10 minutes, density 0.923 g/cc) was extrusion coated to a thickness of 30 μm.
A polyethylene resin layer was formed. Next, after corona discharge treatment was applied to the other surface (back surface) of the substrate, high-density polyethylene (MI=8 g/10 min, density 0.950
g/cc) was extrusion coated to form a 30 μm thick polyethylene resin layer to produce double-sided polyethylene laminated paper.

Next, a two-component polyurethane adhesive with the following composition was applied to the back side of the aluminum vapor-deposited film (the side opposite to the vapor-deposited surface) so that it would be 3 g/rrf after drying, and dried at 100°C for 2 minutes. Align the coated side of the paper and the low-density polyethylene side of the double-sided polyethylene laminated paper, and
Heat compression bonding was performed at 0°C1 pressure 20kg/cm wp-4
I got it.

WP instead of the support of the color photosensitive material obtained in Example-1
Three-dimensional photographic color prints were obtained using WP-1 to WP-4 in the same manner as above.

Stereophotographic color images obtained using WP-1, WP-3, and especially WP-4 were obtained using the color photosensitive material of Example 1 and W
It was sharper and had better three-dimensional effect than that obtained using P-2.

On the other hand, the one in which the lenticular sheet and the color print are pasted together using register pins in the position shown in Fig. 3a is rather WP-1, WP-3, and especially WP-4.
The stereophotographic color images obtained using WP-2 and the photosensitive material of Example 1 were blurry and inferior to those obtained using WP-2 and the photosensitive material of Example 1. This can be said to be a surprising result.

Table 2 summarizes the results.

(Effects of the present invention) According to the present invention, a color photographic material having a lenticular sheet and a color image forming layer provided on a separate ordinary support or a color image forming layer on a specific support can be produced. Using this method, it is possible to easily obtain stereoscopic images with excellent image sharpness and stereoscopic effect.

In particular, the present invention overcomes the defect that misalignment with lenticules becomes noticeable when a high-luminance reflective support with a high density of titanium oxide that has type 2 diffuse reflection or a similar effect is used as the support. On the contrary, it is possible to obtain an image with excellent sharpness and three-dimensional effect.

By using the multi-lens-equipped color photosensitive material packaging unit according to the present invention, three-dimensional photography, which has not been possible in the past, can be popularized at low cost.

[Brief explanation of the drawing]

FIG. 1a is a diagram illustrating the arrangement of register pin holes, enlarged image exposure apertures, and exposure table of the printing exposure apparatus for color photographic light-sensitive materials for printing used in the present invention. FIG. 1 is a diagram illustrating the arrangement of a lenticular sheet, a color photographic light-sensitive material, and a register pin on an exposure table. Figure 2 3. b, c, and d are cross-sectional views of each register mechanism. FIGS. 3a (comparison), b, c, d, and e are diagrams illustrating the shape and arrangement of each register pin (or pin hole). Patent applicant: Fuji Photo Film Co., Ltd. Figure 12--1. Nchi N Yuranut 13---Regiji' Star Mar 7! :,# Figure 6--・Register 0...6

Claims (2)

[Claims] (1) A lenticule is placed on the surface of a transparent substrate.
In the stereophotographic color image forming method of forming a color image on the back side of a lenticular sheet having a repeating structure as described in e), register pins or register marks are attached to a silver halide color photosensitive material having a color image forming layer on a support. A register provided at least one of the upper and lower edges of the image exposure surface of the image, and at a distance of 1/4 to 3/4 of the length of the side in the left and right (horizontal) direction, which is the same as the direction in which both eyes are arranged. A stereophotographic color image forming method characterized in that the lenticular sheet and the color image forming layer (silver halide color photosensitive material) are engaged and aligned by a mechanism. (2) When imagewise exposing a silver halide color photosensitive material through a lenticular sheet, aligning the back surface of the lenticular sheet and the color image forming layer (silver halide color photosensitive material) using the register mechanism,
After image exposure, after peeling off and forming a color image on the color image formation layer through color development processing, the back surface of the lenticular sheet and the color image formation layer are again positioned using substantially the same register mechanism as described above. 2. The stereophotographic color image forming method according to claim 1, wherein the two are finally fixed. (3) Claim (1) or (2) wherein the lenticular sheet has a thickness of 0.3 to 2 mm, and the support carrying the color image forming layer is a reflective support having the following characteristics A or B. ) The stereophotographic color image forming method described in ). A: Support with a reflective layer containing 12% by weight or more of a surface-treated titanium oxide white pigment. B: A support having a specular reflective or type 2 diffuse reflective surface with a total surface reflectance of 0.7 or more.