JP2604750B2 - Color photo printing equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color photographic printing apparatus capable of printing both a photographic image and a video image, and more particularly, to a color original (color negative) set on a film deck. The present invention relates to a color photographic printing apparatus which is capable of sequentially taking an image of a film, a color reversal film, etc.) in three color planes.

[Conventional technology]

A color image printing system including a photographic image exposure system and a video image exposure system, which can selectively print a photographic image and a video image on a color photosensitive material (color paper, color film, etc.) via an optical path switching mirror. An apparatus is known (for example, JP-A-58-122529). In this color photographic printing apparatus, a film deck is arranged facing color paper, and an optical path switching mirror is arranged between the color paper and the film deck. A red filter and a green filter are opposed to the optical path switching mirror. , Three primary color filters consisting of blue filters and a black and white CRT are sequentially arranged.

In printing a photographic image, the optical path switching mirror is retracted from the printing optical path of the photographic image exposure system, and the shutter is opened to print a color image on color paper. Also, when printing a video image, an optical path switching mirror is inserted into the printing optical path of the photographic image exposure system in a state of being inclined at 45 degrees, and sequentially displays a black and white image representing a three-color image with luminance on a black and white CRT, Each color filter is inserted sequentially in front of a black and white CRT, and color images are printed on color paper in three color planes sequentially.

In addition, as an exclusive printing device for photographic images, three primary color filters for exposure control including a cyan filter, a magenta filter, and a yellow filter are arranged below a film deck, and the insertion amount of each color filter is adjusted according to a scene. ,
There is a known color and density correction.
Furthermore, using a cut filter as the three primary color filters,
Each time exposure for each color is completed, a cut filter for correction is inserted into the printing optical path, or a red, green,
A type in which printing is performed by an additive method using a blue color filter is also known.

[Problems to be solved by the invention]

In the above-described color photographic printing apparatus, since the photographic image exposure system prints the color original image set on the film deck as it is on color paper, for example, a plurality of the same frames are arranged using this photographic image exposure system. It was not possible to create a printed photograph or an index photograph in which a plurality of frames described in one photo film were arranged in a matrix. In such a case, a color original image is captured using a television camera (hereinafter, referred to as a TV camera), the obtained image signal is processed, and then input to a video image exposure system, and the video image exposure system is used. To perform photo printing.

When this color original image is taken by a TV camera and printed on color paper using a video image exposure system, it is necessary to take an image using an image pickup table equipped with a film deck, a light source unit, and the like.

In addition, a color TV camera is used for imaging a color film, but since the color TV camera is expensive,
There is also a problem that costs are high.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a color photographic printing apparatus capable of capturing a color original image with a black-and-white TV camera without requiring a special imaging stand.

[Means for solving the problem]

In order to achieve the above object, the present invention provides an optical path switching means comprising a double-sided mirror which can freely enter and exit an optical path connecting a film deck and a color photosensitive material set at an exposure position. In the inserted state, a black and white CRT is arranged facing the mirror surface of the color photosensitive material side,
With the double-sided mirror inserted in the optical path, a black-and-white TV camera is arranged so as to face the mirror surface on the film deck side, and the black-and-white TV camera takes an image of the color original set on the film deck and exposes it during this imaging. A three-primary-color filter for control is selectively inserted into the optical path to perform three-color-plane sequential imaging.

[Action]

When taking an image with a black-and-white TV camera, the three primary color filters provided between the light source unit and the film deck are sequentially inserted into the optical path, and accordingly, the black-and-white TV camera takes an image of the color original set on the film deck, and outputs a red image. , Green and blue image signals are sequentially output. These signals are sent to a video image exposure meter, subjected to image processing such as color correction, gradation correction, and synthesis, and then input to a monochrome CRT. This black-and-white CRT prints a color image on color paper by three-color surface sequential exposure.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

〔Example〕

FIG. 1 is a schematic view of a color photographic printing apparatus according to the present invention. A magazine 3 is detachably set on the upper left of the main body 2, and a color photosensitive material, for example, a color paper 4 is accommodated in the magazine 3 in a roll shape.
The color paper 4 is intermittently pulled out by the draw-out roller 5, enters the exposure chamber 6, and is sent to an exposure position located between the easel mask 7 and the pressure plate 8. On the right side of the easel mask 7, a cutter 9 for cutting the exposed color paper 4 into a short length and a roller 10 for transporting the short color paper 4 to the right are arranged.

A white light source 11 is provided below the exposure chamber 6. The white light emitted from the white light source 11 is
2. After passing through the film deck 13, a color original picture set at the printing position, for example, a color negative film 14, is illuminated from below. The diffusion box 12 includes a rectangular tube having an inner surface formed on a mirror surface, and diffusion plates attached to both open ends. Between the diffusion box 12 and the white light source 11, three primary color filters for exposure control, for example, a cyan filter 15, a magenta filter 16, and a yellow filter 17 are arranged. When printing a color photographic image (hereinafter, referred to as a color negative image) recorded on the color negative film 14, the filter driving unit 18 controls the amount of insertion of each color filter 15 to 17 into the optical path 23, and The red, green and blue color components of the eleventh illumination light are made to correspond to the average transmission density (LATD value) of the color negative image. When a color negative image is captured by the black-and-white TV camera 28, the filter driving unit 18 corresponds to the magenta filter 16 and the yellow filter 17, the cyan filter 15, and the yellow filter 17, corresponding to the red, green, and blue images. The cyan filter 15 and the magenta filter 16 are combined, and these two color filters are sequentially inserted into the optical path 23.

The color negative film 14 is pressed from above by a mask 19 which is actuated by a solenoid (not shown) at the time of photographic printing or imaging. If a reversal color paper and a dedicated developer are used, a positive image of the reversal film can be printed on the color paper 4.

An opening 21 is formed in the lower part of the exposure chamber 6, and a printing lens 20 is detachably attached to the opening 21. In addition, this printing lens 20 is provided so as to be slidable,
It may be retracted from the optical path 23. The sensor unit 31
Optical path of color filters 15-17 for printing color negative images
To determine the amount of insertion into 23, the LATD value of the color negative image is measured for each color.

A double-sided mirror 22 is disposed on the printing lens 20. When printing a color negative image, the double-sided mirror 22 is retracted from the optical path 23 by a mirror driving unit 71 such as a solenoid.

The opening and closing of the shutter 24 is controlled by a shutter control unit 25. When a photographic image exposure system prints a color negative image, the shutter 24 opens once for a time corresponding to the sensitivity of the color paper 4, and a video image exposure system. In the case of printing a video image by using, the image is opened and closed once for each color, three times in total. This is because a black-and-white CRT 27 is used in the video image exposure system in order to increase the resolution. Therefore,
If a color CRT is used, a video image can be printed on the color paper 4 at one time.

A black-and-white CRT 27 constituting a video image exposure system is arranged to face the mirror surface of the double-sided mirror 22 on the color paper 4 side. The black-and-white CRT 27 sequentially displays black-and-white images in which negative red, green, and blue images are represented by luminance during printing. In order to observe the video image to be printed, a color monitor 40 is mounted on the main body 2, and a positive image is displayed on the color monitor 40. The black-and-white CRT 27 normally deflects the beam in the opposite direction to print a color image on the color paper 4 via the double-sided mirror 22.

A black-and-white TV camera 28 is disposed so as to face the black-and-white CRT 27 via the double-sided mirror 22.The black-and-white TV camera 28 captures a color negative image of the color negative film 14 set on the film deck 13 and inputs the image to a video image exposure system. .

The black-and-white CRT 27 displays a black-and-white image in which a red, green, and blue component image is represented by luminance when a video image is printed. In order to convert this black-and-white image into a single-color image of red, green, and blue, a printing lens is used. A red filter 42, a green filter 43, and a blue filter 44 are arranged between 41 and the double-sided mirror 22, and are selectively inserted into the optical path 46 of the printing lens 41 by a filter switching unit 45.

On the right side of the main body 2, a development processing chamber 48 is formed, in which a color developing tank 50, a bleach-fixing tank 51, a washing tank 52, a drying drum 53, and a cutter 54 for cutting one frame are provided. . In addition, a number of rollers 55 for transferring the color paper 4 are appropriately disposed between them. In the development processing chamber 48, the exposed color paper 4 is sequentially subjected to color development, bleach-fixing, washing, and drying steps to form a color positive image on each frame. Discharged to 56.

FIG. 3 shows the electrical configuration of the present invention. The black-and-white TV camera 28 incorporated in the main body 2 is connected to a selector 61 via an A / D converter 60 for converting an analog signal into a digital signal.
The selector 61 is electrically switched by the controller 64. The three contacts a, b, and c on the output side of the selector 61 schematically shown are connected to frame memories 35, 36, and 37 for storing image signals for one frame of red, green, and blue, respectively. I have.

The image signals read from the frame memories 35 to 37 are sent to the image processing device 29. This image processing device 29
In addition to performing image synthesis, such as arranging different or identical images in a matrix, embedding characters and graphics in images, enlarging, reducing, shifting, and rotating images,
Perform density correction and color correction. When a plurality of video images sequentially picked up by the black-and-white TV camera 28 are inserted and synthesized, the video image in the middle of synthesis is stored in the memory 63, and at the time of printing, the processed image signal is converted by the D / A conversion. The signal is converted to an analog signal, and then sent to a monitor system and a print system. This monitor system includes a negative-positive inverting circuit 66, a driver 73, and a color monitor 40, and displays a video image to be printed on the color monitor 40 as a color positive image. The printing system includes a selector 67 for selectively extracting three color image signals (red signal, green signal, and blue signal), a driver 68, and a monochrome CRT 27. When a color reversal film is imaged, the image processing device 29 performs a positive / negative reversal.

The keyboard 65 includes a power key, a print start key, and the like, and inputs necessary commands to the controller 64. The controller 64 operates in accordance with a program,
29, the filter drive unit 18 and the shutter drive unit
25, filter switching unit 45, processing tanks 50 to 52, drying drum 5
3. Sequence control of the photo developing unit 70 including the cutter 54 and the like, the mirror driving unit 71, the selectors 61 and 67, the driver 68 and the like. The sensor unit 31 includes a red sensor 31a, a green sensor 31b, and a blue sensor 31c, and measures the LATD value of a color negative image for each color. The video image input device 74 is for inputting a video image to be printed using a video image exposure system, and includes a video reproducer, a diskette device, and the like. In the case of an analog signal, the video signal is converted into a digital signal. After that, the video signal is input to the image processing device 29.

Next, the operation of the above embodiment will be described. When printing a color negative image using a photographic image exposure system, place the color negative film 14 to be printed on the film deck 13.
Set to. The filter driving unit 18 includes cyan, magenta,
Insert the yellow color filters 15-17 in the standard position,
The illumination light emitted from the white light source 11 in the dimmed state is adjusted to a standard light quality. The red, green, and blue sensors 31a to 31c perform average photometry, measure the LATD value of each of the red, green, and blue colors of the color negative image, and output these to the controller 64. The controller 64 sends a command signal to the filter drive unit 18 in accordance with the LATD value, adjusts the insertion amount of each color filter 15 to 17 into the optical path 23, and adjusts the density and color of the color image printed on the color paper 4. Improve the balance.

If the print key of the keyboard 65 is operated after the color filters 15 to 17 are adjusted, the white light source 11 emits full light and the shutter 24 is opened for a predetermined time, so that the color negative image of the color negative film 14 is printed by the printing lens 20. Is printed on the color paper 4. When the printing of the color negative image is completed, the color filters 15 to 17 are returned to the standard positions, and the white light source 11 is in a dimmed state. At the same time, the unexposed color paper 4 is pulled out of the magazine 3, and the exposed portion is sent to the development processing chamber 48.

By repeating the above procedure, a plurality of color negative images are sequentially printed on the color paper 4, but this portion is temporarily stored as a loop. When a predetermined number of frames are exposed, the cutter 9 is operated to cut the frame into a short length, and this portion is transferred to the color developing tank 50. The short color paper 4 is subjected to a photographic development process by a roller 55 in order through a color developing tank 50, a bleach-fixing tank 51, a washing tank 52, and a drying drum 53. The color paper 4 on which the color positive image is formed by the development processing is
The frames are cut out one by one and then discharged to the tray 56.

Next, a case where a plurality of color negative images are printed on one print photograph using a video image exposure system will be described with reference to FIG. First, set the color negative film 14 on the film deck 13 and set the printing lens 20
Is removed from the opening 21. Next, when the keyboard 65 is instructed to switch to the video image exposure system, the monochrome TV camera 28 is turned on.
At the same time, the white light source 11 emits full light to illuminate the color negative film 14 set on the film deck 13.
The double-sided mirror 22 at the retracted position is
And is inserted into the optical path 23 in a state of being inclined at 45 degrees. At the same time, the filter driving unit 18
15 is retracted, and the yellow and magenta filters 17, 16 are inserted between the white light source 11 and the diffusion box 12, so that the same state as when the red filter is inserted is obtained.

In the illumination light emitted from the white light source 11, only the red component is transmitted by the yellow and magenta filters 17, 16 and illuminates the color negative film 14. The light transmitted through the color negative film 14 is reflected by the double-sided color 22 and enters the monochrome TV camera 28. The monochrome TV camera 28 outputs a red image signal and sends it to the A / D converter 60. Selector 61
Is connected to the contact a in synchronization with the filter driving unit 18, the red image signal digitally converted by the A / D converter 60 is stored in the red frame memory 35.

When the storage of the red image signal for one frame is completed, the filter driving unit 18 retracts the magenta filter 16 from the optical path 23 and inserts the cyan filter 15. The green light transmitted through these yellow and cyan filters 17, 15 illuminates the color negative film 14. The light transmitted through the color negative film 14 enters a black-and-white TV camera 28 and is converted into a green image signal. This green image signal is A / D
The data is stored in the green frame memory 36 via the converter 60 and the selector 61 switched to the contact b. When this green image signal is stored for one frame, the filter driving unit 18 retracts the yellow filter 17 and inserts the cyan filter 15 to make the same state as the inserted state of the blue filter. The blue image signal is stored in the blue frame memory 37.

This is because, when the yellow filter 17 and the magenta filter 16 are superimposed, the spectral transmittance is equivalent to that of the red separation filter. It utilizes the fact that it has the same spectral transmittance as a filter.

Depending on the characteristics of the color filter, for example, when a yellow filter and a magenta filter are overlapped, the spectral transmittance may be slightly different from that of the original red filter for imaging. In such a case, the color correction performed by the image processing device 29 can be corrected by converting a matrix-type coefficient.

When the image signals of the three primary colors have been captured by the monochrome TV camera 28, the frame memory 35
The image signal of each color is sent to the image processing device 29 from.
The image processing device 29 processes the image signal,
When it is stored in the storage 63, the color negative film 14 is transported by one frame, and the next frame is similarly photographed in color by the monochrome TV camera 28.

The image processing device 29 performs color correction and gradation correction on the captured frames, fits them into predetermined positions, synthesizes the frames, and stores them in the memory 63 again. After confirming the fitted state of the composite on the color monitor 40, the print key of the keyboard 65 is operated and the composited video image is
Bake. At the time of printing, the signal of the composite image is read from the memory 63 and sent to the selector 67. Selector 67
First extracts the red image signal, for example, and
The image is sent to the black-and-white CRT 27 via 68, and an image corresponding to the luminance of the red image (more precisely, the negative image of the red image) is displayed on the black-and-white CRT 27. While the black-and-white CRT 27 is emitting light, when the red filter 42 is inserted into the optical path 46 of the printing lens 41,
The black and white CRT27 image is converted to a red image. In this state, the shutter 24 is opened for an exposure time determined according to the red sensitivity of the color paper 4, and a red image is printed on the color paper 4 during this time.

After exposure of the red image, the shutter 24 is closed, during which the red filter 42 is retracted, and the green filter 43 is replaced instead.
Is inserted. At the same time, a green image is displayed in black and white on the black and white CRT 27. Immediately after this, since the shutter 24 is opened again, the monochrome image displayed on the monochrome CRT 27 is converted into a green image by the green filter 43 and is exposed on the color paper 4. Similarly, the blue image displayed on the monochrome CRT 27 is exposed on the color paper 4. By this three-color surface sequential exposure method, a video image synthesized by fitting a plurality of color negative images shown on the color negative film 14 is printed on the color paper 4, the color paper 4 is transported by one frame, and the unexposed portion is removed. It is set at the exposure position.
Then, as described above, the exposed color paper 4
Is sent into the development processing chamber 48 and, after being subjected to photographic development processing, 1
The frames are cut out one by one and then discharged to the tray 56.

FIG. 5 shows a color print photograph in which a plurality of color negative images are fitted and synthesized. The color print photograph 79 is imaged by the black-and-white TV camera 28, and four color images 75 to 78, which are fitted and synthesized by the image processing device 29, are projected in a matrix. In this embodiment, four different color negative images are printed on one print photograph. Alternatively, a plurality of the same color negative images may be printed side by side. It is also possible to combine one color negative image with a character input with the keyboard 65 or the like or a computer graphics image created with a digitalizer, display the combined image on the black and white CRT 27 and print it on the color paper 4. .

Also, if you want to burn a video image as before,
The video image may be input from the video image input device 74, corrected in color and density by the image processing device 29, and then displayed on the monochrome CRT 27.

In this embodiment, a dimming filter is used as a three-primary-color filter for exposure control. In a subtractive color photographic printing apparatus, yellow, magenta, and cyan cut filters are used. In addition, the color photographic printing apparatus uses red, green, and blue filters. These filters are sequentially inserted one by one into the optical path to sequentially perform three-color surface imaging.

〔The invention's effect〕

The optical path switching means is constituted by a double-sided mirror which can freely enter and exit the optical path connecting the film deck and the color photosensitive material set at the exposure position, and the mirror surface on the color photosensitive material side in a state where the double-sided mirror is inserted into the optical path. The black-and-white CRT is arranged so as to face the camera, and the black-and-white TV camera is arranged so as to face the mirror surface on the film deck side in a state where the double-sided mirror is inserted in the optical path. A photograph of a set color original and the use of the other mirror surface, such as a print photograph in which a plurality of color originals are arranged or an index photograph in which a plurality of frames described in one photo film are arranged in a matrix. Video printing can be performed. However, imaging and video printing can be performed simultaneously. Therefore, it is also possible to create a multi-print photograph such as an index print based on these imaged data using the other mirror surface while imaging a color original such as a negative film using one mirror surface. Multi-printing becomes possible.

In addition, since the black-and-white TV camera is arranged so as to face the mirror surface on the film deck side with the double-sided mirror inserted in the optical path, the photographic image exposure system film deck and the light source can be used as they are. Color plane sequential imaging can be performed only by adding a black and white TV camera, and the configuration can be simplified. That is, since the three primary color filters for exposure control of the photographic image exposure system are used for sequential imaging of three color planes, it is not necessary to separately provide a color filter and a filter driving unit, and the configuration can be simplified. Similarly, a photographic image exposure system can be used for the film deck and the light source, so that there is no need to provide a separate imaging stand, and the configuration is simplified. In addition, since the three primary color filters for exposure control are used to sequentially capture three color planes using a black-and-white TV camera, an expensive color TV camera becomes unnecessary and the cost of the apparatus can be reduced.

Furthermore, since the film deck of the photographic image exposure system is used as it is, in addition to being able to sequentially capture three color planes of a color original image with the same film handling as the photographic image exposure system, for example, these index prints and the like after photographic image exposure can be used. It is not necessary to reset the color original when trying to create it.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a state in which photographic printing is performed using a video image exposure system. FIG. 2 is a schematic view showing a state in which photographic printing is performed using a photographic image exposure system. FIG. 3 is a block diagram showing an electrical configuration of the present invention. FIG. 4 is a time chart showing a state of capturing a color negative image by a monochrome TV camera. FIG. 5 is a plan view showing a color print photograph obtained by fitting and combining. 4 ... Color paper 11 ... White light source 14 ... Color negative film 15 ... Cyan filter 16 ... Magenta filter 17 ... Yellow filter 18 ... Filter drive unit 27 ... B & W CRT 28 ... Black and white TV camera.

Claims (1)

(57) [Claims] 1. A three-primary-color filter for controlling exposure is arranged between a light source and a film deck, and the amount of exposure of each color is controlled by using these filters. An image of a color original image set on the film deck is exposed. A video image displayed on a black-and-white CRT using a black-and-white CRT and a red, green, and blue filter using a photographic image exposure system for printing on the color photosensitive material set at the position was set at the exposure position by three-color surface sequential exposure. A color photographic printing apparatus comprising: a video image exposure system for printing on a color photosensitive material; and an optical path switching means for selecting one of the two exposure systems, wherein the optical path switching means includes a film deck and a color photosensitive set at an exposure position. It consists of a screen mirror that can be moved in and out of the optical path connecting the material, and the color photosensitive material side with this double-sided mirror inserted in the optical path The black-and-white CRT is arranged so as to face the mirror surface, and a black-and-white TV camera is arranged so as to face the mirror surface on the film deck side with the double-sided mirror inserted in the optical path. A color photographic printing apparatus for picking up an original color image, and selectively inserting the three primary color filters for exposure control into an optical path at the time of the image pickup to sequentially perform three color plane image pickup.