JPH03200231A - Information setting device for camera - Google Patents

Abstract

PURPOSE:To easily perform the inverting operation of a display board for switching a mode by forming a void where the display board and a holding plate do not abut on each other on the peripheral part of an abutting and supporting part so that the display board can perform seesaw motion with the abutting and supporting part as a fulcrum. CONSTITUTION:In a state where the display board 30 is fitted in the recessed part 21 of a dial main body 20, the bottom of the recessed part 21 is made a flat surface and the display board 30 is formed in a spherical shape, so that the void 21a is provided between the outer peripheral part side of the bottom and the lower display surface of the display board 30. Therefore, by pushing the display board 30 downward with a finger on an opposite side to a positioning projecting part after detaching a fitting screw 40, the pushed side of the display board 30 falls in the void 21a and the display board 30 of the positioning projecting part side floats. The display board 30 is grasped and easily taken out. Thus, the inverting operation of the display board for switching the exposure mode is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a camera information setting device for inputting and setting photographing information such as shutter speed and aperture value.

[Prior Art] Conventionally, as an information setting device for a camera, there is
There are some proposals such as No. 69621.

This is an automatic exposure camera that can select both shutter speed (TV) and aperture (AV) priority modes.
Information and AV information can be set using the same input means, such as a rotary dial, and are displayed on the outer and inner peripheries of the display disk in conjunction with the switching operation of the priority mode switching means. The configuration is such that switching display can be performed by covering up either the TV information or the AV information two-dimensionally.

Information on the selected mode can be confirmed through a fan-shaped window formed in the member covering the display disk.

[Problems to be Solved by the Invention] However, the above-described conventional example has the following drawbacks.

(1) The results that are switched and displayed are viewed through a fan-shaped window, and the Tv1Av information can only be seen on both sides, and the entire display cannot be confirmed with the negative eye, so the upper and lower limits cannot be immediately determined.

(2) Due to display switching on a flat surface, the display space on the inner side of the display date plate is narrower than on the outer side (which may make the display difficult to see, or to avoid this, display on the inside) There are restrictions on the modes that can be used.

(3) The structure is complicated because the display switching mechanism is linked to the switching operation of the mode switching means.

It is an object of the present invention to provide a camera information setting device that eliminates these conventional drawbacks, has a simple configuration, allows you to check all information on the selected mode at a glance, and allows you to easily perform mode switching operations. Our goal is to provide the following.

[Means for Solving the Problems] The gist of the present invention is to display information regarding the first shooting mode on one side, and to display information on the first shooting mode on the opposite side. 2, a display board that displays information regarding the shooting mode; and a holding member provided on the camera body that removably engages and holds the display board with either side facing upward; When the holding member is attached to a predetermined position, the display board and the holding plate are supported in contact with each other approximately in the center, and the display board is capable of seesaw movement using the contact support portion as a fulcrum. The information setting device for a camera is characterized in that a space is formed in the periphery of the display plate and the holding plate so that the display plate and the holding plate do not come into contact with each other.

[Function] The camera information setting device configured as described above displays information regarding the first shooting mode and information regarding the second ↑ ↑ straw-shaped mode on both sides of the display board, and is used to change the shooting mode. When removing the display board, pushing in the outer peripheral part of the display board causes the other part to come up, and by pinching it with your fingers, the display board can be easily removed.

[Embodiment] FIGS. 1 to 7 show an embodiment of a camera information setting device according to the present invention.

In FIGS. 1 and 2, 20 is a dial body formed in a circular shape, and a hollow rotating shaft 23 formed on the back side rotatably fits into and penetrates the fitting hole 11 of the exterior cover 10. As shown in FIG. 5, it is arranged at the top of the camera body C. In addition, a recessed portion 21 is formed in the upper surface of the dial body 20, so that a display plate 30 (to be described later) can be fitted thereto almost without any gaps. By screwing into the threaded portion 25 of the through hole 24 of the rotating shaft 23, the display plate 30 is fixed to the dial body 20 without slipping out.

50 is a click plate provided around the fitting hole 11 on the back side of the exterior cover 10; 60 is a click spring provided with a click spring portion 61 on one side and an engaging portion 62 on the other side; , is fixed to the shaft end 26 of the rotating shaft 23 of the dial body 20, and by rotating the dial body 20, the convex portion 61a attached to the tip of the click spring portion 61 is biased, and the circumference of the click plate 50 is biased. It fits into the click ring 51 formed on the dial body 2, giving a click feeling.
Missing 0 is prevented. The engaging portion 62 formed on the other side of the click spring 6G is a photographing information manual unit that generates an electrical signal for inputting the rotation of the dial body 20, that is, the photographing information setting to the microcomputer of the camera body. (70, 80), which will be described later.

Reference numeral 30 denotes a display plate formed in the shape of a disc whose thickness gradually decreases from the center to the circumferential direction, and as shown in FIGS. )32
is provided with a display in the circumferential direction for the first exposure mode, shutter time priority, and a second display surface 33, which is the opposite surface to the first display surface 32, is provided with a display indicating the second exposure mode. An aperture priority display is provided in the circumferential direction. Also,
When the display plate 30 is fitted into the recess 21 of the dial body 2o, the upper surface 27 of the dial body 20 is formed on a curved surface that is continuous with the curved surface of the surface thereof, and the dial body 2o and the display plate 3o are connected to each other. is made to have an apparently unified spherical shape.

The display board 30 also has a donut shape with an empty space in the center, and a flange portion 30a that comes into contact with the head of a screw 40 for mounting the display board is formed around the empty space. The first screw receiving surface 36 on the first display surface 32 side of the flange portion 30a and the second screw receiving surface 37 on the second display surface 33 side are located at the first peaks on the respective display surface sides. Surface portion 34
, are formed on counterbore surfaces having different depths from the second top surface 35. In this embodiment, in the state shown in FIG. 1 in which the display plate 3o is fitted to the dial main body 20 with the first display surface 32 facing upward, the first display surface 32 is placed in contact with the flat bottom 21a of the recess 21 of the dial main body 2o. 2 top surface 35 and the first screw receiving surface 3
In the state shown in FIG. 4 in which the display plate 30 is fitted to the dial body 20 with the second display surface 33 facing upward and the distance from the dial body 20 is ρ, the flat bottom of the recess 21 of the dial body 20 The distance between the first top surface 34 and the second screw receiving surface 37 that abuts on 21a is 2. Then, ρ and Σi are set.

Therefore, in order to select the first exposure mode, the first
Place the display plate 30 on the dial body 2 with the display surface 32 facing up.
0, and for installation, select the tip position of the tip 41 of the screw 40 (hereinafter referred to as the first pushing position) and the second exposure mode when screwing the screw 40 to the predetermined tightened position. In order to do this, the display plate 30 is attached to the dial body 20 with the second display surface 33 facing upward, and the mounting is done using screws 4.
0 to a predetermined tightened position, the mounting position is the tip position of the tip part 41 of the screw 40 (hereinafter referred to as the second pushed position). 23, the first push-in position is located above the second push-in position, and this difference in position is used to switch between the first exposure mode and the second exposure mode. An electrical switching signal is obtained. Note that this signal switching mechanism will be described later.

Furthermore, if the display plate 30 rotates relative to the dial body 20 while the display plate 30 is attached to the dial body 20, proper settings cannot be made, so in this embodiment, a notch 31 is formed in the display plate 30. At the same time, the display board 30
A positioning protrusion 22 into which the notch 31 fits is formed on the inner circumference of the recess 21 into which the notch 31 fits.

That is, when selecting the first exposure mode with shutter priority as shown in FIG. 5(a) and when selecting the second exposure mode with aperture priority as shown in FIG. 5(b), each All information such as setting values in the mode will be displayed without being obscured.
By matching the value displayed as 0 with the index A provided on the camera body C, the photographing conditions are set at that value. First and second display surfaces 32 of the display board 30.
33 is provided with a common information display, and the notch 3
1, a self-timer display 38a indicating self-timer mode and a battery check display 38b indicating a camera battery check are provided in order in the counterclockwise position, and a program shooting display is provided in an adjacent position clockwise from the notch 31. A program mode display 38c is provided to display, and the notch 31 is set to a lock position, and for this purpose, a lock position display 22a is provided on the positioning convex portion 22 of the dial body 20 into which this notch 31 fits. .

In addition to the above-mentioned common displays, the first display surface 32 also displays B,
4 (1/4), 8 (1/8), 15 (1/4)
15), 30 (1/30), 60 (1/60), 12
5 (1/125) 250 (1/250), 50
0 (11500) 1000 (1/1000), 20
There are a total of 15 displays including the display of 00 (1/2000), and the click grooves 51 of the click board 50 are arranged so that the clicks are activated at the positions where these display parts correspond to the above-mentioned index A. It is formed.

In addition, on the second display surface 33, the above-mentioned common display is displayed at the same position as the first surface, and instead of the shutter speed display position, the aperture value (1, 0, 1
,4,2,0,2,8,4,0,5,6,8,0,11
, 0, 16, 0, 22, 0, 32, 0) are displayed, and a click is applied when each display position matches the index A.

On the other hand, when operating the battery check on the dial body 20, when the self-timer display 38a is aligned with the index A, the battery check display 38b is rotated clockwise to the index A position and the finger is removed from the dial body 20.
The dial main body 20 is returned to the position of the self-timer display 38a by an automatic return mechanism shown in FIG. 13, and the battery check is canceled. When setting the battery check position, a buzzer is used to issue a battery check warning as described later.

Figures 13(a) and 13(b) show the automatic return spring mechanism.

Reference numeral 500 denotes an automatic return spring, which is formed by deforming a plate spring into a circular shape. One end 511 fixed to the camera body C is a fixed end, and the other end in the L shape is a movable end 512. The 13th
As shown in Figure (a) (retained).

On the other hand, a dial stopper 51 is provided on the dial body 20.
4 is provided, and when the dial body 20 is rotated clockwise and passes the self-timer position, the dial stopper 514 engages with the movable end 512 of the automatic return spring 500, and when the dial body 20 is rotated further, it automatically returns and the spring 514 begins to deform. Recovery power is accumulated. Then, when the dial main body 20 is rotated to the battery check position and the finger is removed from the dial main body at that position, the dial main body 20 is rotated counterclockwise by the return force of the automatic return spring 514, and the battery check is released and the self- It will return to the timer position.

In this embodiment, when switching the exposure mode, it is necessary to remove the screw 40 for installation, and for reinstallation, when screwing the screw 40 into the dial body 20, the screw 40 must be removed.
In order to prevent the zero from being overtightened, a spring is used to automatically return the rose/terry check display to the self-timer display position.

That is, for installation, tighten the screws 40 with a right-handed screw with a clockwise direction, and after setting the display plate 30 at a predetermined position on the dial body 20, tighten the screws 40. The dial body 20 rotates clockwise due to the force.

By making the spring force of the automatic return spring strong to some extent, the screw 40 is tightened against the urging force of the automatic return spring during installation.
When the battery check position is reached, it is sufficiently tightened and a battery check can be performed at the same time.

Further, in this embodiment, when the display plate 30 is attached to the recess 21 of the dial body 20, the bottom 21a of the recess 21 is
By making the display panel 30 a flat surface and a spherical shape, a space 21b is provided between the outer peripheral side of the bottom portion 21a and the lower display surface of the display panel 30. As shown, after removing the screw 4o, attach the positioning convex part 22.
When the display board 30 is pushed downward with a finger on the opposite side, as shown in FIG. The display board 30 can be easily taken out by lifting up and pinching it, and even if the display board 30 is attached to the recessed part 21 of the dial body 20 to the extent that it appears to be integrated with the dial body 20, the exposure mode can be changed. This makes it easier to reverse the display board.

Note that, as shown in FIG. 12, even if the display board 30 has a flat shape and the bottom 21a of the recess 21 has a spherical shape with a convex center, the display board 30 can be easily taken out in the same way.

Next, a signal switching mechanism for obtaining an electrical switching signal between the first exposure mode and the second exposure mode, and a dial main body 2 are provided.
The photographing information input unit that generates an electrical photographing information signal in response to the rotation of the camera will be described with reference to FIGS. 1 and 2.

Reference numeral 90 denotes a dial base plate fixed to the camera body C. In the above-mentioned installation, a hollow shaft 100 is fixed through the screw 40 coaxially, and a phase detection board 80 is mounted on the top surface concentrically with the axis of the hollow shaft 100. Fixed. On the surface of this phase detection plate 80 is a pattern section 8 that generates an electrical photographing information signal that is connected to the control microcomputer of the camera body.
1 is provided. Reference numeral 70 denotes a section seat that is rotatably attached to the hollow shaft 100 facing the pattern section 81. A brush 72, which is a conductive section that contacts the pattern section 81, is fixed to the lower surface of the section seat. It is urged toward the phase detection board 80 by a thrust member 73 having spring properties. Further, an engagement pin 71 is protruded from the upper surface side of the section seat 70, and engages with an engagement portion 62 formed at the other end of the click spring 60, and is integrated with the rotation of the dial body 20. The sectioning seat 70 is rotated.

On the other hand, a GND piece 101 is fixed to the lower end of the hollow shaft 100 on the back side of the dial base plate 90, and the ground piece 101 can be contacted with the GND piece 101 on the back side of the dial base plate 90, and the tip end is attached to the hollow shaft 100. A changeover switch movable piece 120 having spring properties extending to the hole position is provided, and the changeover switch movable piece 120 and the GND section 101 are used to obtain a switching signal between the first exposure mode and the second exposure mode. It constitutes a normally closed mode selector switch. The mode changeover switch is turned on and off by a changeover pin 110 that is inserted through the hollow shaft portion of the hollow shaft 100 from below so as to be movable in the axial direction. The lower end head 110a of the switching bottle 110 is always in contact with the tip of the switching switch movable piece 120, and the switch movable piece 120 is connected to the GND section 1 by the spring force.
It can be pushed up to a position where it makes contact with 01. At that time, the tip of the switching bin 110 is connected to the dial body 2.
0 (hereinafter referred to as the push-up position), and when the switching bin 110 is pushed down against the spring force of the switch movable piece 120, the mode switching switch is activated. Turn off.

In this embodiment, the operation of this switching bin 11O is carried out using screws 40 to fix the display board 30, and as described above, the first display surface 32 of the display board 30 is turned upward. In the exposure mode, as shown in FIG. In the case of the second exposure mode in which the display surface 33 faces upward, as shown in FIG. It is said that

Therefore, in the case of the first exposure mode, the installation is done with screws 4
Since the switching bin 110 is not pushed down by 0, the mode switching switch is in the closed state, and an ON signal indicating the first exposure mode is input to the microcomputer, and in the case of the second exposure mode. The switching bin 110 is mounted by the screw 40. The switching bin 110 is pushed down, the mode switching switch is opened, and an off signal indicating the second exposure mode is input to the microcomputer.

When setting the first exposure mode, which is shutter priority,
During installation, the changeover bin 110 is not pushed down by the screw 40 and the mode changeover switch is in the closed state, so even if the screw 40 is not screwed in, the mode changeover switch is in the closed state. Outputs an on signal indicating the exposure mode. For this reason, in this embodiment, the same display as that displayed on the first display surface 32 of the display board 30 showing the information of the first exposure mode is displayed on the bottom surface of the recessed part 21 of the dial body 20 as shown in FIG. It is set up as shown.

That is, when the first exposure mode, which prioritizes the shutter speed, is often used, there is no need to attach the display plate 30 to the dial body 20, and the setting value displayed on the bottom of the recess 21 of the dial body 20 is displayed. You can set the shutter speed by looking at the .

Note that in this example, the information settings are shutter speed and aperture value, and the case where these modes are selected is used as an example. The mode may be, for example, a program setting mode having a program diagram for the subject to be photographed.

FIG. 8 is a diagram showing an example of a camera control device to which signals from the information setting device according to the present embodiment are input and drive and control various devices.

In FIG. 8, 201 is a microcomputer, 202
203 is a pull-up resistor, and 203 is a mode changeover switch. The switch 203 is an open/close switch that is turned on when the dial is set to the shutter priority side and turned off when the dial is set to the aperture priority side.

The signal of the switch 203 is connected to the input P1 of the microcomputer 201, and when the switch 203 is on, a low signal is input to the microcombiator 201, and when the switch 203 is off, a pi signal is input to the microcomviator 201.
By reading this input port PI, 01 can determine whether the dial is giving shutter priority or aperture priority.

8o is a phase detection board that detects rotation by a contact piece 72 that rotates in conjunction with the rotation of the dial of the camera, and a 4-bit position signal corresponding to the position of the dial is sent to the input port P3.8o of the microcomputer 201. P4. P5. It is input to P6.

208, 209.210.211 are pull-up resistors for detection, respectively, and P3. P4. P5. A low signal is input to each input port of P6 when the connected brush is touching a conductive part of the phase detection board, and a high signal is input when it is touching a non-conductive part. FIG. 11 shows P3 when priority values are selected for shutter priority and aperture priority. P4. P5. It shows the input state of signals to each input port of P6, where "0" in the figure means a low level input signal, and "1" means a high level input signal.

In FIG. 11, P3. P4. P5. If all the input ports of P6 are low signal inputs, the voltage of the power supply (not shown) is checked in both shutter priority mode and aperture priority mode, and a warning sound corresponding to the voltage is emitted, and 246 outputs a warning sound. It is a sounding body for emitting sounds, and a microcomputer 20
It is connected to one output port P18 and is driven by the microcomputer 201.

In FIG. 11, input boat P3. P4゜P5. When the input state of P6 is rO, 0, O, IJ,
The self-timer operation mode is used for both shutter priority and aperture priority.

Similarly, in FIG. 11, input ports P3, P4. P5.
If the input status of P6 is "ro, 0, 1°0", the release operation is prohibited in both shutter priority and aperture priority, and the release operation is not performed even if the release button is pressed. It becomes.

Also, input boat P3. P4. P5. The input state of P6 is r
In the case of o, O, 1, IJ, neither shutter priority nor aperture priority is performed, and the shutter speed and aperture value change simultaneously due to changes in brightness. change to get the correct exposure. Switches to program automatic exposure mode. An example of the relationship between the shutter speed and the aperture value in the automatic exposure mode at this time is shown in FIG.

In other cases, priority setting values are determined according to FIG. 11 for both shutter priority and aperture priority.

For example, when shutter priority is being used, input port P3. P4. P5. The input state of P6 is rO, 1, 0, O
J, 1/2000 second is set as the priority second. Similarly, when performing aperture priority, input port P3. P4. P5. The input state of P6 is “1”
゜0.1. If it is IJ, F2.8 will be set as the priority aperture value.

A switch 212 is linked to the release button, and is turned on by pressing the release button of the camera. The switch 212 provides input to the input port P7 of the microcomputer 201, so that the microcomputer 201 can read the state of the release button.

239 is a silicon photodiode for photometry; 240 is an AD converter that performs AD conversion on the photometry value output from the silicon photodiode 239; the photometry information is transmitted to the microcomputer 201 via a path line 241;

242 and 243 are resistors for dividing the voltage of the power supply battery; 244 is an AD converter for AD converting the divided voltage; and voltage information is transmitted to the microcomputer 201 via a pass line 245.

214 is a motor (Ml) for driving the opening and closing of the aperture 223 of the photographing lens.

215, 216 are PNP transistors, 217, 218
is an NPN transistor.

The collectors of PNP transistors 215 and 216 are each connected to both ends of motor M1, and the collectors of NPN transistors 217 and 218 are also respectively connected to both ends of motor M1. Also PNP transistor 215
．． Both emitters of transistors 216 and 216 are connected to the + side of a power supply (not shown), and emitters of NPN transistors 217 and 218 are both connected to one side of a power supply (not shown).

The bases of PNP transistors 215 and 216 are connected to the microcomputer 2 through resistors 219 and 220, respectively.
01 output boat P8. Connected to P9.

The bases of the NPN transistors 217 and 218 are connected to the output ports PIO and pH of the microcomputer 1 via resistors 221 and 222, respectively.

With the above configuration, the forward and reverse rotation of the motor Ml can be arbitrarily controlled by the microcomputer 201.

224 rotates normally to feed photographic film (not shown);
This is a motor (M2) for raising and lowering the main mirror and charging the shutter spring in reverse rotation.

225, 226 are PNP transistors, 227.228
is an NPN transistor.

The collectors of PNP transistors 225, 226 are each connected across motor M2, and the collectors of NPN transistors 227, 228 are also each connected across motor M2. Also PNP transistor 225
．． The emitters of transistors 226 and 226 are both connected to the + side of a power supply (not shown), and the emitters of NPN transistors 227 and 228 are both connected to one side of a power supply (not shown). P.N.
The bases of transistors 225 and 226 are connected to the output ports P12 and P12 of microcomputer 201 through base resistors 229 and 230, respectively. Connected to F13.

The bases of the NPN transistors 227 and 228 are connected to the output ports P14. of the microcomputer 201 via resistors 231.232, respectively. Connected to PI3.

With this configuration, the forward and reverse rotation of the motor M2 can be arbitrarily controlled by the microcomputer 201.

Reference numeral 233 denotes a magnet for unlocking the movement of the front shutter curtain (not shown), and 234 denotes a magnet for releasing the lock of the movement of the rear shutter curtain (not shown).

Magnet 233 is connected to the collector of NPN transistor 235 and magnet 234 is connected to the collector of NPN transistor 236.

The bases of the NPN transistors 235 and 236 are connected to the output ports P16. of the microcomputer 201 via base resistors 237 and 238, respectively. Connected to PI3.

With this configuration, the microcomputer 201 can arbitrarily control the front and rear curtains of the shutter.

Next, the operation of the electric circuit configured as described above will be explained according to the operation flowchart of the microcomputer 201 shown in FIG.

When the battery is inserted into the camera, the microcomputer 2
01 starts operation from step 1.

[Step 2] Input boat F'3. P4. The input signals of P5 and P6 are read, and the release operation is disabled, that is, ro, 0, 1 . Determine whether or not the state is OJ. If the release is prohibited, the process does not proceed to the following steps and returns to step l. If the release is not prohibited, the process moves to step 2.

[Step 2] Input boat P3. P4. The input signals of P5 and P6 are similarly read to determine whether or not to check the power supply voltage, that is, whether or not the state is "0°, 0.0.OJ."

If you want to check the power supply voltage, go to step 19.
If not, proceed to step 3.

[Step 19] Communicates with the AD converter 244 via the pass line 245, checks the power supply voltage, and drives the output port P18 based on the result. When the power supply voltage is sufficient, the sounding body will sound at a fast frequency such as 8Hz,
When the voltage is low, the sounding body sounds at a slow frequency such as 2Hz.

[Step 3] Switch 21 linked to the release button
2 is read from boat P7.

If the input signal of boat P7 is low level, the release button is pressed in, so start the release operation (proceed to step 4).If the input signal of boat P7 is high level, go back to step 1 and confirm that the release button is pressed in. The processes from step 1 to step 3 above are repeated until the process is completed.

[Step 4] AD converter 2 via pass line 241
40 and inputs photometric information.

[Step 5] The state of the switch 3, which determines whether the dial is set to the shutter priority side or the aperture priority side, is read from the boat P1. If the input signal of boat P1 is low level, the dial is on the shutter priority side, so the shutter priority calculation processing is performed (step 6).
If the input signal of boat P1 is at a high level, the dial is set to the aperture priority side, so the process branches to step 8.

[Step 6] Input boat P3. P4. The shutter priority value is determined from the input signals of P5 and P6 according to FIG.

[Step 7] Based on the input photometric information and shutter priority value, an aperture value for proper exposure is calculated. However, in the program automatic exposure mode, the shutter speed and aperture value are determined according to the program diagram shown in FIG. After that, the process branches to step 10.

[Step 8] Even when the dial is set to the aperture priority side, input boat P3. P4. The aperture priority value is determined from the input signals of P5 and P6 according to FIG.

[Step 9] Based on the input photometric information and aperture priority value, the shutter speed required for proper exposure is calculated. However, similarly to the shutter priority mode, in the program automatic exposure mode, the shutter speed and aperture value are determined according to the program diagram shown in FIG. 1o. Then step l
Branch to O.

[Step 10] If the self-timer operation mode is selected, wait for 10 seconds to elapse. If it is not the self-timer operating mode, the process immediately moves to step 11.

[Step 11] A low level signal is output from the output capacitor PI3, and the PNP h transistor 225 is turned on.

Further, a high level signal is output from the output port P13 to turn off the PNP transistor 226. Also, a low level signal is output from the output port P14, and the NPN transistor 227 is turned off.

In addition, a high level signal is output from the output boat P15,
Turn on the NPN transistor 228. As a result, current flows through the motor M2 from left to right, causing the motor M2 to rotate in reverse. This flips up the camera's main mirror, making it ready for shooting.

[Step 12] Output a high level signal from the output port P8 to turn off the PNP transistor 215. In addition, output port P9 outputs a low level signal, and PNP
Turn on transistor 216. Also output boat PIO
A high level signal is output from the NPN transistor 217 to turn on the NPN transistor 217.

It also outputs a low level signal from the output capo)-pH,
Turn off NPN transistor 218.

As a result, current flows through the motor M1 from right to left, and the motor M1 rotates in the normal direction. As a result, the aperture of the camera is driven in the direction of narrowing down the aperture. When the position has been narrowed down to a predetermined position, the output boat P8. P9. PIO and pH are all set to high level and motor Ml is stopped.

[Step 13] Output a high level signal from the output port P16 for 10 milliseconds. As a result, the running of the shutter tip film is unlocked and the shutter tip film starts running.

[Step 14] Wait for the shutter opening time to end. This time is the priority set value in the case of shutter priority, and is the shutter time obtained as a calculation result for obtaining appropriate exposure for the set aperture value in the case of aperture priority. However, in the case of bulb photography with shutter priority, the process remains in step 14 until the release button on the camera side is released.
After the release button is released, the process moves to step 15.

As described above, the operation of the release button can be determined from the input signal of the input boat P1.

[Step 15] A high level signal is output from the output port P17 for 10 milliseconds. As a result, the running of the shutter rear curtain is unlocked and the shutter rear curtain starts running.

[Step 16] A low level signal is output from the output port P12 to turn on the PNP transistor 225. In addition, a high level signal is output from the output port P13, and P
NP) Turn off the transistor 226. Also, a low level signal is output from the output port P14 to turn off the NPN transistor 227.

In addition, a high level signal is output from the output boat P15,
NPN ) transistor 228 is turned on.

As a result, current flows through the motor M2 from left to right, causing the motor M2 to rotate in reverse.

As a result, the main mirror of the camera goes from being raised up to being lowered while simultaneously charging the shutter springs of both the front and rear curtains.

[Step 17] A low level signal is output from the output port P8 to turn on the PNP transistor 215. In addition, a high level signal is output from the output port P9, and the PNP
Turn off transistor 216. Also output boat PLO
outputs a low level signal from NPN transistor 2.
Turn off 17.

In addition, a high level signal is output from the output boat pH, and N
PN transistor 218 is turned on.

As a result, current flows through the motor M1 from left to right, causing the motor M1 to rotate in reverse.

As a result, the aperture of the camera becomes open.

[Step 18] Output a high level signal from the output port PL2 to turn off the PNP transistor 225.

In addition, a low level signal is output from the output boat P13,
Turn on PNP transistor 226. Also, a high level signal is output from the output port P14 to turn on the NPN transistor 227.

In addition, a low level signal is output from the output boat P15,
Turn off NPN transistor 228.

As a result, current flows through the motor M2 from right to left, causing the motor M2 to rotate in the normal direction. As a result, one frame of exposed photographic film is fed, and the series of release operations is completed. After this, the process returns to step 1 and the above-described operations are repeated.

[Effects of the Invention] As explained above, according to the present invention, all information in the selected mode is displayed on the display board attached to the rotary dial, and the operator can see all the information at a glance. You can check all the information at a glance by flipping the display board in other modes.

Furthermore, information for one mode can be displayed on one side of the display board, similar to a single mode dial, so a sufficient display space can be secured and a neat design can be achieved.

Then, when switching the mode, simply by pushing one side of the display board, the display board will float to the side opposite to the push-in part, and can be easily picked out with fingers.

[Brief explanation of drawings]

1 to 7 show an embodiment of the camera information setting device according to the present invention, in which FIG. 1 is a sectional view showing the setting state of the first exposure mode, FIG. 2 is an exploded perspective view, and FIG. Diagram (a)
, (b) and (c) are plan views of one side of the display board,
4 is a sectional view showing the setting state of the second exposure mode, and FIGS. 5(a) and (b) are the plan view and sectional view of the other side. 6 and 7 are diagrams for explaining the operation to take out the display board, FIG. 8 is a control block diagram of the camera, and FIG. 9 is a block diagram for explaining its operation. FIG. 10 is an exposure control diagram, FIG. 11 is a diagram showing the correspondence between input signals and set values, and FIGS. 12(a) and (b) are diagrams showing the automatic return mechanism. 10: Camera exterior cover 20: Dial body 40: Mounting screws 60: Click spring 80: Phase detection board 100: Hollow shaft 120: Switch movable piece. 30: Display board 50: Click board 70: Section dust 90: Dial base plate 110: Switching bin ft! l 4 (a) Figure (C) Figure (b) Figure 10 Figure 1 Figure 12 (b) Procedural amendment 1991 Moon/Sunset amendment 3'AI, 2 Care Line name (name) to be amended N Co., Ltd. The following matters are amended in the specification and drawings of the present application. Note 1, "In Figure 12" is written on page 15, line 15 of the specification. 2. On page 37, line 7 of the specification, the statement ``This is a diagram showing an automatic return mechanism.'' should be corrected to ``Figure 13''. This is a cross-sectional view showing an example of the construction.'' 3. New drawing Figure 13 will be added today. 330 Shigesu Building, 2-6-2 Marunouchi, Chiyoda-ku, Tokyo As per attached sheet

Claims (1)

[Claims] 1. A display board that displays information regarding a first shooting mode on one side and displays information regarding a second shooting mode on a side opposite to the one side; and the display board. and a holding member provided on the camera body that removably fits and holds the camera body with either side facing upward, and when the display plate is attached to a predetermined position of the holding member, the display plate and The display board and the holding plate are supported in contact with each other approximately in the center, and the display board and the holding plate are supported on the periphery of the contact support part so that the display board can see-saw using the contact support part as a fulcrum. A camera information setting device characterized by forming a blank space that does not come into contact. 2. Information setting for a camera according to claim 1, wherein the holding member is a rotary dial that is rotatably provided with respect to the camera body and that sets photographing information that is locked and held at each setting position. Device. 3. The information setting device for a camera according to claim 1 or 2, wherein the display plate is formed in a disc shape whose thickness gradually decreases from the center toward the peripheral edge. 4. The information setting device for a camera according to claim 1, wherein the display board has a flat disk shape. 5. The information setting device for a camera according to claim 1, wherein the holding member has a flat surface facing the display board. 6. Claim 1, wherein the holding member has a chevron-shaped cross-sectional shape with a gentle slope with a convex portion at the center facing the display board.
, 2, or 4. The camera information setting device according to .