JPH05158159A - Simple trimming method in photograph projecting and printing device - Google Patents

Abstract

PURPOSE:To obtain a method that trimming is easily executed when printing is executed by using a photograph projecting and printing device that plural projecting lenses whose conjugate length is identical and whose focal distances are different and the image of the frame of a negative film set at a printing position is picked up by an image pickup means and displayed on a monitor screen. CONSTITUTION:Frame information 2 and 3 showing a printing range by the plural projection lenses whose conjugate length is identical and whose focal distances are different can be selectively or simultaneously superimposed and displayed on the monitor screen 4. Based on the frame information 2 and 3 which is selectively or simultaneously displayed, the printing is executed by using corresponding one among the projection lenses. Though the trimming is not continuous but stepswise, the desired trimming can be extremely easily executed without executing the trial printing or calculation as in conventional manner.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic projection printing apparatus using a fixed focus projection lens, and a method for simply trimming by replacing the projection lens.

[0002]

2. Description of the Related Art A simple photographic projection printing apparatus called a minilab has a structure shown in, for example, an optical path diagram of FIG. 1 and a perspective view of FIG. That is, the film carrier 17 on which the negative film 19 for printing is set, and the movable mirror 2 mounted so as to freely move in and out of the printing optical path 24.
6, a standard projection lens 29 that is replaceably attached to the printing optical path 24, and other replaceable projection lenses 30 and 31 having the same conjugate length as the standard projection lens 29 but different focal lengths.
The photographic paper 1 arranged at the image forming positions of the projection lenses 29 to 31.
5. The shutter 27 and the movable mirror 26 provided between the projection lens of the printing optical path 24 and the printing paper 15
4, the imaging lens 36 disposed in the reflected light path 24a when inserted into the optical path 4, the beam splitter 37 that divides the imaging light from the imaging lens 36 into two, the photometric element 39 disposed in one of the separated optical paths, A color image sensor 38 arranged on the image forming surface of the other optical path of the image lens 36, an image processing circuit 42 for processing a video signal obtained from the image pickup surface 38a of the color image sensor 38, a γ correction by the image processing circuit 42, It comprises a color monitor 20 which receives a video signal which has been subjected to negative / positive inversion processing and has been color-separated into R, G and B, and which displays an image of the frame 35 of the negative film 19 on the display surface 45.

In the printing operation, first, the movable mirror 26 is set at 45 ° with respect to the printing optical path 24, the negative film 19 is set on the film carrier 17, and the printing frame 3 is printed.
Align 5 with film carrier 17. Then, the negative film 19 is illuminated with illumination light from a lamp house (not shown), and the light transmitted through the negative film 19 is reflected by the movable mirror 26, passes through the reflected light path 24a, and is beamed as imaged light by the imaging lens 36. Splitter 37
One of the separated lights is sent to the photometering device 39 for exposure adjustment and photoelectrically converted.
The other light is the imaging surface 38 of the color image sensor 38.
The image of the frame 35 is formed upon incidence on a, and the video signal obtained from the imaging surface 38a is sent to the color monitor 20 via the image processing circuit 42, and the image of the frame 35 is displayed on the display surface 45 thereof. When you want to print after checking the position of the frame 35 and the size of the image, press the print button.
The movable mirror 26 is retracted from the baking optical path 24, the shutter 27 is opened, and the light transmitted through the frame 35 is imaged on the photographic paper 15 by, for example, the standard projection lens 29 set in the optical path 24 to form an image of the frame 35. Bake. After that, photographic paper 1
No. 5 is developed by a processing device such as a developing device (not shown), and baking is completed.

By the way, when the photographic projection printing apparatus is used and the projection lens is exchanged to change the magnification of the image projected on the photographic paper 15 to trim the image to be printed,
It was necessary to replace the projection lens and actually burn it, or to calculate the ratio of the magnifications of the projection lens used and the standard projection lens, and to know the projection range from the reciprocal of the ratio.

[0005]

As described above, in the conventional simple photographic projection printing apparatus using exchangeable projection lenses having the same conjugate length and different focal lengths, when the projection lenses are exchanged and trimming is performed, It was not possible to easily display the printing range in advance and select the most suitable projection lens.

The present invention has been made in view of such circumstances, and an object thereof is to provide a negative film having a plurality of projection lenses having the same conjugate length but different focal lengths and set at a print position by an image pickup means. It is an object of the present invention to provide a simple trimming method when printing is performed using a photographic projection printing apparatus that images a frame and displays it on a monitor screen.

[0007]

A first method of a simple trimming method in a photographic projection printing apparatus of the present invention that achieves the above object is provided with a plurality of projection lenses having the same conjugate length but different focal lengths, and Using a photo projection printing device that images the negative film frame set at the print position by the image pickup device and displays it on the monitor screen, frame information indicating the printing range by each projection lens is selectively superimposed on the monitor screen of the frame. And display is performed, and based on the frame information that is selectively displayed, printing is performed using any of the projection lenses corresponding to the frame information.

In the second method, a plurality of projection lenses having the same conjugate length and different focal lengths are provided, and the negative film frame set at the print position by the image pickup means is imaged and displayed on the monitor screen. By using a photo projection printing device, it is possible to simultaneously display frame information indicating the printing range of each projection lens on the frame monitor screen,
The method is characterized in that printing is performed using any of the projection lenses corresponding to the frame information displayed at the same time.

Further, the third method is a photographic projection in which a variable-magnification projection lens having a fixed conjugate length is provided, and a frame of a negative film set at a print position by an image pickup means is imaged and displayed on a monitor screen. Using the printing device, it is possible to selectively or simultaneously superimpose the frame information indicating the printing range at the selected multiple magnifications of the variable magnification projection lens on the frame monitor screen, and the frame information displayed selectively or simultaneously. Based on the above, the magnification of the variable magnification projection lens is set to any magnification corresponding to them, and printing is performed.

In the above case, the color of the frame information to be superimposed and displayed is made different for each projection lens, or
It is also possible to display differently for each magnification of the variable magnification projection lens.

[0011]

In any of the methods according to the present invention, a printing range by a plurality of projection lenses having the same conjugate length and different focal lengths on the monitor screen, or a plurality of variable magnification projection lenses having a fixed conjugate length are selected. The frame information indicating the printing range at the magnification is selectively or simultaneously displayed so that it can be displayed, and printing is performed using any projection lens or magnification corresponding to the frame information displayed selectively or simultaneously. Therefore, although it is not a continuous trimming but a stepwise trimming, desired trimming can be extremely easily performed without performing trial baking and calculation as in the past.

[0012]

Embodiments of the simple trimming method of the present invention will be described below with reference to the drawings. In the present invention, the standard projection lens 29, which has the structure as shown in FIGS. 1 and 2, is exchangeably attached, and another exchangeable projection having the same conjugate length as the standard projection lens 29 but a different focal length. A photographic projection printing apparatus capable of displaying the image of the frame 35 of the negative film 19 on the color monitor 20 using the lenses 30 and 31 is used, and the projection lenses 29, 30, 31 and the like are exchanged to display the image projected on the photographic paper 15. Trim the image to be printed by changing the magnification. For that purpose, first, a frame line overlapping display device as shown in FIG. 3 is attached to the color monitor 20. That is, the frame line overlapping display device includes the CPU 60,
A keyboard 11 connected to the CPU 60, a memory 61, a frame line data generation circuit 66, a character data generation circuit 68 are provided, and based on a signal from the CPU 60,
The frame line data generation circuit 66 generates frame line data, and the character data generation circuit 68 generates character font data. The frame line data from the frame data generation circuit 66 and the character font data from the character data generation circuit 68 are
The data is written in the frame memory 67.
The frame line data and the character font data read from the frame memory 67 are converted into red image data, green image data, and blue image data by the color signal generation circuit 72, and these three-color image data are D / A converter 73. Is converted into an analog signal and then sent to the adders 55 to 57 to be added to the video signal of the monitor image so that the frame image and characters described later are superimposed and displayed on the monitor image of the frame 35.

By the way, in the memory 61, information on a printing range determined in accordance with the focal length of the projection lens to be used is stored in advance in correspondence with, for example, a lens number. Information on the printing range determined by the focal length is read. Therefore, when the registered lens number is specified from the keyboard 11, the CPU 60 reads the corresponding burning range information from the memory 61, sends the information to the frame line data generation circuit 66, and the frame line data generation circuit 66 outputs the information. Generate the corresponding frame data. At that time, the CPU 60 also sends information about the registered lens number to the character data generation circuit 68, if necessary, and the character data generation circuit 68 generates character font data. The frame line data and the character font data are written in the frame memory 67, and the frame line data and the character font data read from the frame memory 67 are processed by the color signal generation circuit 72 to generate red image data, green image data,
Converted to blue image data, this 3 color image data is D /
After being converted into an analog signal by the A converter 73, the adder 5
5 to 57, is added to the video signal of the monitor image, and is displayed with the frame and characters superimposed on the monitor image of the frame 35.

The frame 35 is printed in the order shown in FIG. 4 by using the color monitor 20 in which the frame lines and characters are superimposed on the frame image as required in this way and displayed.
That is, when the negative film 19 is set on the film carrier 17 and printing is started, in step 1, the monitor 45 surrounded by the film carrier opening frame 1 as shown in FIG. The image and the frame line 2 showing the print range of the standard projection lens 29 superimposed on the image are automatically displayed. Then, in step 2, looking at this display, the standard projection lens 29
Other than that, it is decided whether or not to perform trimming. When trimming is not to be performed, printing is performed as it is in step 8, and a print by the standard projection lens 29 is created. In the case of trimming, in step 3, a suitable registered lens number is designated from the keyboard 11, and in step 4, a printing range determined by the focal length of the projection lens of that number is shown in FIG. 5B. The frame line 3 is superimposed on the monitor image and automatically displayed. Whether or not the print range 3 is appropriate is determined in step 5, and if not, the information indicating that is input from the keyboard 11, the screen returns to FIG. 5A, and the same operation as above is performed. repeat. If appropriate, select the projection lens of the number corresponding to the print range in step 6 and replace it manually or automatically, print in step 7, and print trimmed by the projection lens of that number. .

As described above, when the data indicating the printing range of the replaceable projection lens is superimposed and displayed on the monitor screen of the negative film, and an appropriate projection lens is selected based on the display, and printing is performed, Although it is not a continuous trimming but a stepwise trimming, desired trimming can be extremely easily performed without performing trial baking and calculation as in the past.

By the way, the above-described embodiment is an embodiment in which, as shown in FIG. 5, every time a registered lens number is designated, the printing range determined by the projection lens of that number is selectively superimposed and displayed on the monitor image. However, screen 4 is shown in FIG.
5, the frame line 2 indicating the print range of the standard projection lens 29, the frame line 3 indicating the print range of the projection lens 30, the frame line 4 indicating the print range of the projection lens 31, etc. are displayed at the same time. It is also possible to select an appropriate trimming range in the frame lines 2 to 4 and select a projection lens having a number corresponding to the trimming range to manually or automatically replace the projection lens and perform printing. In this case, as shown in FIG. 5, it is helpful to display, for example, the lens number 5 at the same time in correspondence with each of the frame lines 2 to 4. This number is generated by the character data generating circuit 68 of FIG.

In the above description, the projection lens has the same conjugate length and is replaceable, but a single variable power lens may be used. In this case, a plurality of selected magnification indices are provided on the variable power lens, and the monitor screen 45
As shown in FIG. 5 or FIG. 6, a frame line indicating a print range corresponding to each magnification is selectively or simultaneously superimposed and displayed on the monitor image of, and any trimming frame line is selected, and the magnification corresponding to the trimming frame line is selected. Set the magnification of the variable power lens to and print.

Although the simple trimming method in the photographic projection printing apparatus of the present invention has been described above based on the embodiments, the present invention is not limited to these embodiments and various modifications can be made. For example, the colors of the frame lines 2 to 4 may be displayed differently for each projection lens or different for each magnification of the variable magnification projection lens.

[0019]

As apparent from the above description, according to the simple trimming method in the photographic projection printing apparatus of the present invention,
Select frame information that shows the printing range of multiple projection lenses with the same conjugate length but different focal lengths on the monitor screen, or the printing range at multiple selected magnifications of the variable magnification projection lens with fixed conjugate length. Or, it is possible to display by superimposing at the same time, and since printing is performed using any projection lens or magnification corresponding to them based on the frame information displayed selectively or simultaneously, stepwise trimming is used instead of continuous trimming. However, desired trimming can be performed extremely easily without performing trial baking and calculation as in the related art.

The simple trimming method according to the present invention is particularly effective for a user who has a frequently used trimming pattern.

[Brief description of drawings]

FIG. 1 is a schematic optical path diagram of a photographic projection printing apparatus to which a simple trimming method of the present invention is applied.

FIG. 2 is a perspective view of a main part of the apparatus shown in FIG.

FIG. 3 is a diagram showing a configuration of a frame line overlapping display device attached to a monitor.

FIG. 4 is a flowchart showing the baking sequence of one embodiment.

5 is a diagram showing an example of a display on a monitor screen in the embodiment of FIG.

FIG. 6 is a diagram showing an example of display on a monitor screen in another embodiment.

[Explanation of symbols]

 1 ... Film carrier opening frame 2, 3, 4 ... Frame line showing print range 5 ... Lens number 11 ... Keyboard 15 ... Printing paper 17 ... Film carrier 19 ... Negative film 20 ... Color monitor 24 ... Printing light path 24a ... Reflection light path 26 ... Movable mirror 27 ... Shutter 29 ... Standard projection lens 30, 31 ... Interchangeable projection lens 35 ... Frame 36 ... Imaging lens 37 ... Beam splitter 38 ... Color image sensor 38a ... Imaging surface 39 ... Photometric element 42 ... Image processing circuit 45 ... Display surface 55, 56, 57 ... Adder 60 ... CPU 61 ... Memory 66 ... Frame data generation circuit 68 ... Character data generation circuit 67 ... Frame memory 72 ... Color signal generation circuit 73 ... D / A converter

Claims (4)

[Claims] 1. A photographic projection printing apparatus comprising a plurality of projection lenses having the same conjugate length and different focal lengths, and imaging a negative film frame set at a print position by an imaging means and displaying the frame on a monitor screen. The frame information indicating the printing range of each projection lens can be selectively superimposed and displayed on the frame monitor screen, and any of the corresponding projection lenses can be used based on the selectively displayed frame information. A simple trimming method in a photographic projection printing apparatus, which is characterized by performing printing. 2. A photographic projection printing apparatus comprising a plurality of projection lenses having the same conjugate length and different focal lengths, and imaging a negative film frame set at a print position by an imaging means and displaying the frame on a monitor screen. By using this, it is possible to simultaneously display the frame information indicating the printing range of each projection lens on the monitor screen of the frame, and print using any of the corresponding projection lenses based on the simultaneously displayed frame information. A simple trimming method in a photographic projection printing apparatus characterized by being performed. 3. A photographic projection printing apparatus which comprises a variable magnification projection lens having a fixed conjugate length, and which images a negative film frame set at a print position by an image pickup means and displays it on a monitor screen. Frame information indicating the printing range at multiple magnifications of the variable-magnification projection lens can be selectively or simultaneously superimposed and displayed on the monitor screen of and corresponding to them based on the frame information displayed selectively or simultaneously. A simple trimming method in a photographic projection printing apparatus, characterized in that the magnification of the variable magnification projection lens is set to any one of the following magnifications for printing. 4. The color of the frame information to be superimposed and displayed is made different for each projection lens, or is made different for each magnification of the variable magnification projection lens and displayed. A simple trimming method in the photographic projection printing apparatus according to any one of claims.