JPS62151833A - Photograph copying machine - Google Patents

Abstract

PURPOSE:To print the image in a desired trimming area on an original on a subject by an easy method with the degree of freedom by setting the axial size and position of the printing area with the mask of a variable copying medium, and moving the original and setting the image in the printing area. CONSTITUTION:The image pickup device 11 of a photograph copying machine is fixed in an image pickup visual field area along with a negative mask 3 through a half-mirror 10 so that the optical axis L' is aligned with the optical axis L from a light source 1. A display device 17 which displays image information and a negative film position adjusting mechanism 6 which moves a negative film F are connected to the device 11 through a control means 15. Further, the trimming area is set to a projection state setting mechanism 20 by a trimming area specifying mechanism 18 connected to the means 15 and operation on a keyboard 21. Then, the image in a desired trimming area on the original is copied on paper P by the easy method with the degree of freedom.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a photocopying device, and particularly to a photocopying device that can form a copy image by printing a so-called trimmed image from an original such as a negative film. be.

[Technology background]

In general, the process of printing only a portion of an image from a photographic original such as a negative film onto photographic paper, which is a copying medium, to form a so-called trimmed copy image is extremely cumbersome and requires little freedom. be.

For example, in order to specify the portion of a document placed in the document placement area where a copy image should be formed, it is necessary to use a negative mask with an aperture that perfectly matches the trimming area, and the optical path length is fixed. Because of this, specific relationships must be maintained regarding the size of the trimming area, the projection magnification, and the size of the copied image to be printed, which does not allow for a large degree of freedom.

[Purpose of the invention]

The present invention has been made against the background of the above-mentioned circumstances, and its object is to provide a photocopying apparatus that can print an image trimmed from a document extremely easily and with a large degree of freedom. It is in.

[Structure of the invention]

The present invention provides a projection device including a light source and a projection lens device disposed on an optical axis, and a projection device on which an optical image of a translucent original is projected, which is disposed between the light source and the projection lens device. a) a copying medium supporting member that supports a copying medium on the optical axis of the photocopying apparatus, wherein the light is an imaging device fixedly provided in relation to the axis, which divides the imaging field of view into a large number of elementary regions arranged vertically and horizontally, and provides image information for each elementary region; and a display device connected to the imaging device. and (8) a document moving device; (2) a projection state setting mechanism; and (e) a trimming area that is coupled to a display device and that specifies a desired trimming area by superimposing the image of the document in the display device. a designated mechanism and a designated trimming area display mechanism that displays the designated trimming area on a screen with the elementary area as the orientation; The document moving mechanism is controlled so that the center of the trimming area displayed on the screen coincides with the optical axis using the optical axis position information stored as the document position reference and provided by the document position reference. , and calculating the appropriate magnification in the projection lens device from the difference between the size of the trimming area specified by the trimming area designation mechanism and the size of the printing area that is actually printed,
The present invention is characterized by comprising a control mechanism that controls the projection lens device so as to achieve the appropriate magnification.

According to such a configuration, by specifying a trimming area using the trimming area specifying mechanism, the specified trimming area is displayed on the screen of the display device, and the processing T! The control mechanism in the ui structure sets the projection lens device to an appropriate magnification based on the size of the specified trimming area, and moves the document through the document movement mechanism so that the center of the specified trimming area coincides with the optical axis position of the projection lens device. Therefore, the image of the desired trimming area can be printed on the copying medium very simply and with a large degree of freedom.

〔Example〕

FIG. 1 is an explanatory diagram showing the projection device of the photocopying apparatus of the present invention, where l is a light source, 2 is a group of color filters, 3 is a negative mask, F is a negative film, 4 is a projection lens, 5 is a paper mask, 8 is the shutter, P is the paper, and shi is the optical axis, where the light image of the portion that passes through the aperture of the negative mask 30 on the back of the image of the negative film F corresponds to the aperture of the paper mask 5 on the paper P via the projection lens 4. The image is projected onto the area and then developed to form a duplicate image.

Reference numeral 11 denotes an imaging device, and its front axis L is set so that the original placement area where the negative film F is placed is included in the imaging field of view together with the negative mask 3 through a half mirror 10, for example.
' is fixedly provided in a state where it is completely defeated by the half mirror 10 along the optical axis. This imaging device 11 divides its imaging field of view into a large number of elementary regions arranged vertically and horizontally.
I gives image information for each elemental region,
For example, it includes a panel 12 having a large number of light-receiving elements regularly arranged vertically and horizontally corresponding to elementary areas.

As shown in FIG. 2, this imaging device 11 includes a conversion section 1.
A display is connected to a control mechanism 15 via 3 and a buffer memory 14, and displays an image according to the image↑n information from the image pickup device 11 via an image synthesis mechanism 16 driven by a signal from the control mechanism 15. Device 17
is provided.

The negative film F is held by an original holding member (not shown), and this original holding member is provided so as to be movable within the same level, and furthermore, a negative film position adjustment unit is used to adjust the position of the original holding member. It is connected to mechanism 6.

The negative mask 3 blocks the passage of light from a portion of the negative film F other than the portion located above the aperture, and usually the size signal of the negative film F placed in the document placement area is used to control the size of the negative film F. The one corresponding to the size of F is set on the optical axis. Specifically, a configuration in which a plurality of negative masks with different opening sizes are provided and one selected from among them is positioned in the document placement area, or a negative mask in which the opening size is variable stepwise or steplessly is provided. It is assumed that the configuration is as follows.

The projection lens 4 is located in the document placement area and the negative mask 3
The image of the negative film F that has passed through is projected at a set magnification at the level where the paper P is positioned. Specifically, a plurality of projection lenses with different focal lengths are provided, and one selected from among them is positioned on the optical axis, or a projection lens with a continuously variable focal length is provided. It is considered to be a composition.

Further, the paper mask 5 has an opening that restricts the area on the paper P that is actually printed.

The Konohhaha mask 5 also has a configuration in which a plurality of masks with different opening sizes are provided, and a selected mask is located in the printing area, or a mask with variable opening sizes in stages or steplessly is provided. It is assumed that the configuration is as follows.

The projection state setting mechanism 20 has a function of setting the size of the aperture of the negative mask 3, the magnification of the projection lens 4, and the size of the aperture of the paper mask 5 to specified states based on signals from the control mechanism 15.

In addition, the control mechanism 15 is connected with a trimming area specifying mechanism 18 for specifying a desired trimming area, and displays the trimming area specified by the trimming area 1 specifying mechanism 18 on the screen of the display device.
A designated trimming area display mechanism (not shown) is provided which displays the elementary area as a unit, superimposed on the image of the document.

Furthermore, this control mechanism 15 is connected to a memory 22 that stores the optical axis of the projection device or a specific position in a specific relationship thereto as a document position reference. A function is provided to control the document moving mechanism using the information so that the center of the trimming area displayed on the screen coincides with the optical axis of the projection system, and also, On the screen of the display device, there is a difference between the size of the specified trimming area specified by the trimming area specifying mechanism 18 and the size of the printing area that is actually printed, that is, the opening size of the paper mask 5, so that the sizes of both are different. The projection state setting mechanism 20 calculates the appropriate magnification in the projection lens device that will be defeated, and sets the projection state to the appropriate magnification.
A capability is provided to control the projection lens device via the lens.

21 is a keyboard for operating the control mechanism 15;

According to the above configuration, a trimmed copy photograph can be formed in the following manner.

When the aperture size of the negative mask 3, the magnification of the projection lens 4, and the aperture size of the paper mask 5 are set by the control mechanism L5 automatically or by operating the keyboard 21 based on the basic information necessary for printing, these settings are made. According to the conditions, as shown in FIG. 3, on the screen 30 of the display device 17, an image of the document placement area, that is, an image 3A of the negative mask 3 and an image F^ of the negative film F that has passed through the negative mask 3 are displayed. Along with these images, the control mechanism 15 can also display a printing area mark M corresponding to the printing area where printing is actually performed using the paper mask 5.

Figure 3 shows the paper mask 5 in the projection system of Figure 1.
As shown by the solid line, the aperture of the negative mask 3 is in a 1:l relationship with the aperture of the negative mask 3 at the relevant magnification (width a).
), but as shown by the broken line, it shows a state in which the opening of the paper mask 5 is set to a reduced state (width b) in which the opening of the paper mask 5 is reduced compared to the opening of the negative mask 3 at the magnification.

Then, as shown in FIG. 4, a desired trimming area T is specified by the trimming area specifying mechanism 18 within the range of the image FA of the negative film F displayed on the screen 30. The shape of the trimming area T is in phase with the printing area mark M indicating the opening of the paper mask 5.

When the trimming area T is specified in this way, the point C at the center of that area is determined, so if we consider the coordinate axes whose origin is the dot indicating the optical axis, the vector indicating point C is specified by (x, y). It will be done. Therefore, by using this vector, the negative film position adjustment mechanism 6 is driven via the control mechanism 15 so that the magnitude of the vector at point C becomes zero.

That is, in the control J mechanism 15, the distance relationship between the point on the negative film F corresponding to the position of point C and the optical axis in the projection system is calculated, and until this distance relationship is resolved and the two coincide, The negative film F is moved by the negative film position adjustment mechanism 6 via the document holding member.

Furthermore, since the specified trimming area T has a shape that is in phase with the burn-in area mark M, and its width t has been specified, the difference between the width t and the width m of the burn-in area mark M is determined. is specified, and based on this difference, the magnification of the projection lens 4 is controlled to be changed by the projection state setting mechanism 20 via the control mechanism 15 so that the width t becomes equal to the width m. That is, in the control mechanism 15, the size on the paper P corresponding to the trimming area T is calculated, and the projection lens 4 is adjusted until the size on the paper P matches the size of the aperture of the paper mask 5. The magnification is adjusted.

When the above operations are completed, an image in which the trimming area T matches the burning area mark M will be displayed on the screen 30.

If you execute the burn-in process in this state, screen 30 will appear.
The burning area mark M displayed on the paper P
Since the area to be printed is displayed and the trimming area matches it, an image of the specified trimming area will be formed on the paper P.

In the above, it is not necessarily necessary to display the burn-in area mark M on the screen 30 of the display device.

In the above embodiment, the screen 30 of the display device
By arbitrarily specifying a trimming area T in the image displayed, the center of the specified area on the negative film F is automatically aligned with the optical axis position, and the center of the specified trimming area T is automatically aligned with the position of the optical axis. Since the magnification of the projection lens 4 is automatically set according to the size, it is possible to form a desired cropped copy extremely easily by simply performing the printing process.
In addition, the trimming area T can be specified while viewing the entire image of the negative film F on the screen of the display device, so it is extremely easy and reliable to specify the trimming area T. This can be done in any position and size within the range displayed on the screen.

〔effect〕

As described above, the present invention provides a projection system that includes a light source and a projection lens device arranged on the optical axis. a position, and a copying medium support member disposed between the light source and the projection lens device and supporting the copying medium on the optical axis of the projection device onto which the optical image of the translucent original is projected. A photocopying apparatus comprising: (a) an imaging field of view area fixedly provided in relation to the optical axis so that the original placement area where the projected original is placed falls within the imaging field of view area; (a) a display device connected to the imaging device; (c) a document moving device; and (ii) a projection state setting mechanism. and (e) a trimming area designation mechanism for specifying a desired trimming area by overlapping the image of the document in the display device coupled to the display device, and a trimming area specifying mechanism for specifying the desired trimming area in units of the elementary area. a designated trimming area display mechanism that displays on the screen; and f) storing the optical axis position of the projection device coupled to the imaging device and the display device as a document position reference, and determining the optical axis given by the document position reference. controlling the document moving mechanism so that the center of the trimming area displayed on the screen coincides with the optical axis using the position information, and the size of the trimming area specified by the trimming area specifying mechanism; Calculate the appropriate magnification of the projection lens device from the difference in the size of the actually printed area,
Since it has a control mechanism that controls the projection lens device to achieve the appropriate magnification, it is possible to form a copy image by trimming a desired image portion from a document extremely easily and with a large degree of freedom. In addition, since the processing can be performed in units of elementary regions, detailed trimming processing can be achieved by reducing the area of the elementary regions.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing an example of the projection device of the photocopying apparatus of the present invention, FIG. 2 is an explanatory diagram showing the control system of the photocopying apparatus of the present invention, and FIG. 3 is an explanation of the display on the screen of the display device. 4 are explanatory diagrams for specifying a trimming area. 1... Light aU 2... Color filter group 3... Negative mask F... Negative film 4
...Projection L'7's 5...Paper mask 6
...Negative film position iPI adjustment mechanism 8...Shutter P...Paper...Optical axis l
O...half mirror 11...imaging device 13
... Conversion unit 14 ... Buffer memory 15 ... Control mechanism 16 ... Image composition mechanism 17 ... Display device 18 ... Trimming area designation mechanism 20 ... Projection state setting mechanism 21 Keyboard 22...Memory 30...
・Screen M...Burning area mark T...
・Trimming area diagram 4

Claims (1)

[Claims] 1) A projection device including a light source and a projection lens device disposed on an optical axis, and an optical image of a translucent original disposed between the light source and the projection lens device is projected. , a copying medium support member that supports a copying medium on the optical axis of the projection device, wherein: (a) a document placement area in which a document to be projected is to be placed falls within the imaging field of view; (b) an imaging device fixedly provided in relation to the optical axis, which divides the imaging field of view into a large number of elementary regions arranged vertically and horizontally and provides image information for each elementary region; The connected display device; c) the original moving device; d) the projection state setting mechanism; and e) the display device provided in conjunction with the display device. a designated trimming region designation mechanism and a designated trimming region display mechanism that displays the designated trimming region on a screen in units of elementary regions; f) light of the projection device coupled to the imaging device and the display device; The document moving mechanism stores the axis position as a document position reference, and uses the optical axis position information given by the document position reference to align the center of the trimming area displayed on the screen with the optical axis. and calculates the appropriate magnification in the projection lens device from the difference between the size of the trimming area specified by the trimming area designation mechanism and the size of the printing area that is actually printed,
A photocopying apparatus comprising: a control mechanism for controlling a projection lens device to obtain an appropriate magnification.