JPH06301104A - Camera - Google Patents

Abstract

PURPOSE:To switch the LCD field display in a finder and the image magnification change with no malaise by providing a means concurrently controlling the finder display corresponding to the selected aspect ratio and the drive of a finder optical system. CONSTITUTION:When an aspect switch SW 3 is switched from H to P, a parallel processing circuit 4 drives a finder optical system 7 via a zoom finder driving circuit 5 and a motor 6. The shift quantity is received from a position sensor 8 serving as a zoom finder position detecting means. When the finder optical system 7 finally reaches the prescribed position for the P mode, the parallel processing circuit 4 stops the drive and changes the display of an LCD finder 1. The display of the LCD finder 1 is switched in steps in response to the change of the image magnification of the finder optical system 7, and the aspect ratio of a pickup image plane can be smoothly switched.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a camera capable of selecting one of a plurality of photographing aspect ratios for photographing.

[0002]

2. Description of the Related Art Conventionally, as described in Japanese Patent Application Laid-Open No. 62-163033 and Japanese Patent Application No. 4-1974450, there is provided a trimming photographing for designating only a partial area in the photographing screen. A camera has been proposed in which the aspect ratio can be selected.

FIG. 7 shows the difference between the three types of aspect ratios and the trimming area. Figure 7 (a)
FIG. 4 is a diagram showing a region printed at the time of printing when the aspect ratio switching value “H” is selected and photographed, and the aspect ratio is about 1: 1.8. FIG. 11B is a diagram showing a region that is similarly printed during printing when the aspect ratio switching value “L” is selected and photographed, and the aspect ratio is about 1: 1.5. FIG. 11C is a diagram showing a region which is printed at the same time when printing is performed by selecting the aspect ratio switching value “P”, and the aspect ratio is about 1:
2.8.

These aspect ratio switching values are "H",
Information indicating "L" or "P" is stored in the magnetic storage portion of each frame of the film, and by using this magnetic information at the time of printing, a print having a desired aspect ratio can be obtained. Further, when this aspect ratio switching is performed, the inside of the finder is electrically displayed using an LCD or the like as in FIG. 7. Further, when either the "H" or "L" mode is switched to the "P" mode, the finder optical system also uses a motor or the like as shown in FIG.
The switching is performed as shown in, and the magnification in the “P” mode is increased to emphasize the wide feeling. On the contrary, when the "P" mode is switched to either the "H" or "L" mode, the finder optical system is switched as shown in FIG. "Reduce the magnification in the mode.

[0005]

SUMMARY OF THE INVENTION In the above conventional example,
It was revealed that the following problems occur when the aspect ratio is switched while looking through the viewfinder.

When switching between the "P" mode and the "H" or "L" mode, the LCD display of the finder has an immediate response, so that the mode is switched immediately. There is a time delay.

Therefore, for example, if the finder optical system is switched after switching the LCD finder having an immediate response first, when the "P" mode is set, as shown in FIG.
As shown in FIG. 5, the upper and lower parts are masked by the LCD, and then the optical system is driven so that the finder magnification becomes large. After the drive is finally stopped, the field of view seen by the photographer is narrower than when the drive of the optical system is started. On the contrary, when the "P" mode is switched to either the "H" or "L" mode, after the driving is finally stopped, the field of view seen by the photographer is wider than that at the start of driving. .

As described above, since the time required for the switching operation of the finder optical system and the time required for the switching operation of the LCD finder are greatly different, the change in the field of view to be photographed is felt too discontinuous, which is uncomfortable for the photographer. It became clear that it had the drawback of becoming a certain finder.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a camera capable of switching the display of the LCD field of view in the viewfinder and the change of the image magnification without a sense of discomfort.

[0010]

In order to achieve the above object, the camera of the present invention according to claim 1 has a selecting means for selecting one of at least two photographing aspect ratios, and Display means for displaying in the photographic finder a display corresponding to the aspect ratio selected by the selection means, and drive means for driving the finder optical system corresponding to the aspect ratio selected by the selection means, A parallel control means for controlling the display means and the driving means at the same time is provided, and in claim 2, a magnetic head for writing information to the magnetic recording portion of the film is used by using the film with the magnetic recording portion. The information corresponding to the aspect ratio selected by the selecting means is recorded in the magnetic recording section. Has imprinting means for performing an optical imprint to Lum, the information corresponding to the aspect ratio selected by the selecting means is for recording on the film by the imprinting means.

[0011]

According to the present invention, the parallel display means capable of simultaneously controlling the display means in the finder and the means for driving the finder optical system, such as an LCD, while switching the display in the finder stepwise, By simultaneously performing the switching operation of the finder optical system, it is possible to switch between the LCD visual field display in the finder and the change in the image magnification without a sense of discomfort.

[0012]

FIG. 1 is a block diagram showing an embodiment of the present invention. In FIG. 1, 3 is an aspect change switch for selecting the aspect ratio (hereinafter, the switch is abbreviated as SW), and its state change is 4
Is detected by the parallel control means. The parallel processing circuit 4 which is the parallel control means controls the LCD finder driving circuit 2 and the zoom finder driving circuit 5 according to the selected aspect ratio. The LCD finder 1 is displayed and a command for driving the finder optical system 7 is transmitted via the zoom finder drive circuit 5 and the motor 6.

FIG. 2 shows an embodiment in which the "H" mode can be switched to the "L" mode or the "P" mode with the aspect switching SW3 as a standard. That is, in this embodiment, the "L" mode and the "P" mode cannot be directly switched, and the switching is always performed via the "H" mode.

Here, the LCD of the finder is divided into segments as shown in (a) of the figure, and the signal line for performing 1/2 duty drive, which is the drive format of a general LCD, is 4 of SEG0 to SEG3 in the lateral direction
Two wires, COM0 and COM1 in the vertical direction, are wired on the front and back of the substrate, respectively. Note that this figure shows only the upper left portion in the finder, and the remaining lower left portion and the upper right portion are arranged geometrically symmetrical.

Now, in the "H" mode, none of these segments is selected, and the state is as shown in FIG. Here, when the "H" mode is switched to the "P" mode by the aspect switching SW3, the parallel processing circuit 4 drives the finder optical system 7 via the zoom finder drive circuit 5 and the motor 6. At the same time, when the amount of movement of the finder optical system 7 is received from the position sensor 8 which is the zoom finder position detecting means and it is detected that the finder optical system 7 has moved by a predetermined amount, the LCD finder drive circuit 2 causes LC
The display of the D finder 1 is changed as shown in FIGS. 2 (c) and 2 (d). Here, in the figure (c), only SEG0 is CO
M0 and COM1 are selected, and in the figure (d), SEG0,
SEG1, COM0, and COM1 are selected. When the finder optical system 7 finally reaches a predetermined position in the "P" mode, the parallel processing circuit 4 stops the driving of the finder optical system 7 and simultaneously, SEG0 to SEG2 and COM0,
Select COM1 and display the LCD finder 1 as shown in Figure 2.
Change as shown in (e).

On the contrary, "P" is set by the aspect switching SW3.
When the mode is switched to the “H” mode, the finder optical system 7 is driven and at the same time the above-mentioned LCD is operated.
Reverse the display process of the founder.

On the other hand, when the "H" mode is switched to the "L" mode or the "L" mode is switched to the "P" mode,
Since it is not necessary to drive the finder optical system 7, LC
Only the D finder display needs to be changed. That is,
In the "L" mode, only SEG0 to SEG3 and COM0 are selected, and the left and right parts of the finder are masked as shown in FIG. 2 (f).

As described above, by switching the display of the LCD finder step by step according to the change of the image magnification of the finder optical system, the aspect switching of the photographing screen can be smoothly performed.

In the above-described embodiment, the position detection sensor of the finder optical system is used to switch the display on the LCD finder. However, as in the second embodiment shown in FIG. 3, the position sensor is used. It is also possible to use a timer 9 instead of the above. That is, since the switching time of the finder optical system is a substantially constant time determined by the driving mechanism and the control system, the timer circuit 9 is set in advance so as to have a substantially constant interval, and when the timer circuit finishes measuring time, the LCD The display of the finder may be switched and the timer circuit may be reset.

FIG. 4 shows a third embodiment of the present invention. In the first embodiment, the selection of the aspect ratio can be changed only through the "H" mode without fail, but in this embodiment, the configuration in the case of the rotary SW that can be selected in any mode As an example, the display of the LCD finder is as shown in FIG.
As shown in (a), SEG0 to SEG12 are configured to be independently and statically driven. First, in the "P" mode, SEG0-6, SEG
10, 11, and 12 are selected, and the state of the LCD finder is as shown in FIG. From this state, when the rotary SW is operated to switch to the "L" mode, the finder optical system 7 is driven and the LCD
The viewfinder display is sequentially switched to the states of (b ') and (b ") in the figure, and finally the state of the" L "mode shown in (c) of the figure is brought into effect. Conversely, from the" L "mode to the" H "mode. "When switched to the mode, the opposite of the above (b") →
(B ')-> (b). The change in the display of the LCD finder between the "P" mode and the "H" and "L" modes is almost the same as that in the first embodiment, and thus the description thereof is omitted.

According to this structure, the number of display segments for the LCD finder increases, but the finder can be switched stepwise regardless of which aspect ratio is selected, which allows smooth display.

In the above embodiment, the display during switching is divided into two stages, but this does not necessarily have to be two stages, and the number of stages can be increased or decreased. .

FIG. 6 is a diagram in the case where a function for recording information corresponding to the above-mentioned aspect ratio selection information is added to the film 10 with a magnetic recording portion, which is the same as that of FIG. 1, FIG. 3 or FIG. Those having the same function are denoted by the same reference numeral. In FIG. 6, reference numeral 12 is a circuit for driving the motor 11 for feeding the film, and 13 is a photometry / distance measurement start switch.
(SW1) SW closed by the first stroke of the shooting button, 14 is the exposure start SW (SW2) Second of the shooting button
SW closed by stroke, 15 is main SW, 16
Is a magnetic recording circuit for writing information on the film.
Is a magnetic head.

If the main SW 15 is closed and the "L" level is input to the CPU 21, the CPU 21 detects that SW1 and SW2 are closed in response to the pressing of the shooting button, and performs a predetermined shooting operation. After that, the magnetic recording circuit 16
The information corresponding to the desired aspect ratio is written on the film 10 via the. In this embodiment, the CPU 21 functions as the parallel control means.

In addition to the above embodiments, for example, an optical imprinting method is used instead of the magnetic recording circuit shown in FIG. 6, that is, an optical imprinting means is used for recording at the edge of the film. May be.

[0026]

As described above, according to the present invention, by the parallel control means, the display in the founder and the switching operation of the founder optical system are simultaneously and stepwise performed, so that the LCD field of view in the founder is increased. It is possible to provide a camera that smoothly switches between display and image magnification change without a feeling of strangeness.

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic configuration of a main part of a first embodiment of the present invention.

FIG. 2 is a diagram showing an example of an LCD finder display of the first embodiment.

FIG. 3 is a diagram showing a schematic configuration of a main part of a second embodiment of the present invention.

FIG. 4 is a diagram showing a schematic configuration of a main part of a third embodiment of the present invention.

FIG. 5 is a diagram showing an LCD finder display example of a third embodiment.

FIG. 6 is a block diagram of a configuration in which a function of recording information corresponding to aspect ratio selection information is added to the film with a magnetic recording portion shown in each embodiment of the present invention.

FIG. 7 is a diagram showing three types of aspect ratio differences and a trimming area.

FIG. 8 is a diagram illustrating switching of a finder optical system.

[Explanation of symbols]

 1 LCD finder 2 LCD finder drive circuit 3 Aspect switching SW 4 Parallel processing circuit 5 Zoom finder drive circuit 6 Motor 7 Finder optical system 8 Position sensor

Claims (3)

[Claims] 1. A selection means for selecting one of at least two photographing aspect ratios, a display means for performing a display corresponding to the aspect ratio selected by the selection means in a photographing viewfinder, and the selection. A driving means for driving the finder optical system corresponding to the aspect ratio selected by the means, and a parallel control means for controlling the display means and the driving means at the same time. 2. A film having a magnetic recording portion is used, and a magnetic head for writing information to the magnetic recording portion of the film is provided, and information corresponding to the aspect ratio selected by the selecting means is stored in the magnetic recording portion. The camera according to claim 1, wherein the camera records. 3. A recording means for optically imprinting on a film, wherein information corresponding to an aspect ratio selected by said selecting means is recorded on the film by said recording means. The camera according to claim 1.