JPH05333419A - Display device for camera - Google Patents

Abstract

PURPOSE:To obtain a display device for a camera capable of easily changing the displayed contents of plural display units having a scale plate and a rotating needle by a common operation button. CONSTITUTION:Every time a 1st operating member 103 is operated, any display means 102a is selected from the plural display means 102a-102c in specified order, so that the needle 101a of the selected display means 102a is driven and controlled to be different from the needles 101b... of other display means 102b. Thus, the display means 102a being an object whose displayed content should be changed is easily discriminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device of a camera for displaying various kinds of photographing information.

[0002]

2. Description of the Related Art Conventionally, as a device for displaying various kinds of photographing information on a camera, there has been known a device which digitally displays a shutter speed or the like by a liquid crystal display or pictorially displays a self-timer mode. It is also known to provide a rotary dial for setting the shutter speed, aperture, etc. so as to both set and display shooting conditions.

However, when a liquid crystal display or a rotary dial is installed on the upper surface or the back surface of a limited camera, the displayed characters become small, and various kinds of shooting information including shooting conditions become difficult to see. Therefore, it is conceivable that a pointer that is driven to rotate by a motor and a scale plate for displaying various kinds of photographing information by the pointer are provided and various kinds of photographing information are displayed by utilizing the limited space of the camera.

[0004]

By the way, in a display device for displaying various kinds of photographing information by a pointer which is rotationally driven on such a scale plate, the pointer is manually rotated in order to change the display content of the photographing information. There is a problem in that it is necessary to provide an operation button for each display unit, and it is necessary to secure a mounting space for them.

Therefore, it is conceivable to provide a change operation button common to all the display units to change the display contents. However, in such a case, it is not known which display unit is the operation button change target. There is a problem.

An object of the present invention is to provide a display device for a camera in which the display contents of a plurality of display devices having a scale plate and a rotary pointer can be easily changed with a common operation button.

[0007]

The present invention will be described with reference to FIG. 1, which is a claim correspondence diagram, and the invention of claim 1 is applied to a display device of a camera for displaying various photographing information, and a scale plate 100a. ~ Pointer 101a driven to rotate above
A plurality of display means 102 for displaying various photographing information by
a-and a first operation member 103 for selecting the display means whose display content is to be changed from among the plurality of display means 102a-, and a plurality of them each time the first operation member 103 is operated. Selecting means 104 for selecting the displaying means in a predetermined order from among the displaying means 102a.
Pointer (101 of the display means (102a) selected in 04
a) is a pointer (101b) of another display means (102b-).
Drive control means 105 for controlling the drive differently from (1) to (3), thereby achieving the above object. The invention according to claim 2 is the display means (1
02a) second operation member 1 for changing display contents
06, the drive control means 105A, the display means (102) selected each time the second operation member 106 is operated.
The display contents are changed by drivingly controlling the pointer (101a) of a).

[0008]

According to the first aspect of the present invention, each time the first operation member 103 is operated, one of the plurality of display means 102a to 102a is selected in a predetermined order, and the selected display is selected. The driving of the pointer (101a) of the means (102a) is controlled so as to be different from that of the other display means (102b-). As a result, it is possible to easily identify which display means is currently the display content change target. According to the second aspect of the invention, each time the second operation member 106 is operated, the pointer (101a) of the display means (102a) selected as the display content change target is drive-controlled,
Change its display content. Therefore, the plurality of display means 10
Each display content of 2a to 2a can be easily changed by the two operation members 103 and 106.

[0009]

【Example】

-First embodiment-When any one of the plurality of display units is selected as the display unit whose display content is to be changed by the common operation switch, the pointer of the display unit is set between the scale and the scale. A first example will be described in which the display unit is set to the position and is a change target display unit. FIG. 2 shows the configuration of the first embodiment. In the figure, a control device 1 is composed of a microcomputer and its peripheral parts, performs sequence control of the camera and various calculations, and executes a control program described later to control driving of the display 2. The control device 1 includes a focal length detecting device 3, a lens driving device 4, a distance measuring device 5, a flash device 6, a clock 7, operating switches 8a and 8b.
Are connected respectively. The focal length detection device 3 detects the focal length of a photographing lens (not shown), and the lens driving device 4 drives the photographing lens according to a command signal from the control device 1. Further, the distance measuring device 5 detects the photographing distance to the subject, the flash device 6 illuminates the subject in accordance with the command signal from the control device 1, and the clock 7 outputs information regarding the date and time to the control device 1. .. Further operation switches 8a, 8
Reference numeral b is a common switch for changing each display content of the plurality of display units included in the display device 2. Operation switch 8
a is a switch for selecting a display unit whose display content is to be changed from a plurality of display units, and operation switch 8b is a switch for changing the display content of the display unit selected by operation switch 8a. ..

Further, the control device 1 is connected with a film feeding device 9, a photographing frame number counting device 10, a half-press switch 11, a release switch 12, an exposure device 13, a display device 2 and a memory 14, respectively. The film feeding device 9 winds and rewinds the film, and the photographed frame number counting device 10 counts the number of photographed frames. The half-push switch 11 is turned on when the release button described later is half-pushed, and the release switch 12 is turned on when the release button is fully pressed. Further, the exposure device 13 drives and controls the diaphragm mechanism portion and the shutter mechanism portion to expose the film, and the memory 14 stores the position of the pointer of the display 2.

FIG. 3 shows the rear surface of a camera equipped with the display device of the present invention. On the upper surface of the camera body 21, a display device 2 for displaying various information, a release button 22 and an operation switching dial 23 are provided. A back cover 24, a finder 25, and operation switches 8a and 8b are provided on the back surface of the camera body 21. The "ON" indicator 23b
Switch dial 2 so that the
When 3 is set, the camera body 21 is ready to take a picture, and the operation of the operation switches 8a and 8b is enabled. On the other hand, when the operation switching dial 23 is set so that the "OFF" index 23c faces the index 23a, the camera body 21 is in the non-shooting state, and the operation of each operation switch is invalid.

FIG. 4 shows the display 2 in an enlarged manner. The display device 2 includes a large display unit 31, and a small first display unit 41, a second display unit 51, and a third display unit 61 provided in the large display unit 31. The large display unit 31 is composed of a large pointer 32 driven by a motor (not shown) and a scale plate 33, and displays the number of photographed frames of the film. The scale plate 33 is provided with a scale every 30 degrees, and the scale positions corresponding to 0 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock of the timepiece have numbers indicating the number of pieces 0, 15, 30, 45, respectively. To be done.
Further, the large pointer 32 is rotationally driven on the scale plate 33 by 6 degrees per frame for each photographing. Therefore, the large pointer 32 is 30
It may stop between the graduations provided every degree. However, even in such a case, the rotation angle 6 degrees per frame of the large pointer 32 is the same angle as one minute or one second of the timepiece, and even if the large pointer 32 is between the scales, the minute hand or the second hand of the timepiece. The number of frames to be photographed can be easily recognized at intervals similar to. The large-sized display unit 31 shown in the figure shows 14 frames.

The first display section 41 comprises a pointer 42 driven by a motor (not shown) and a scale plate 43, and displays the exposure amount correction mode. On the scale plate 43,
Scales and "0", "1", "B", and "-1" marks indicating the mode are written at positions corresponding to 3 o'clock, 6 o'clock, and 9 o'clock, respectively. The mark “0” indicates no correction for the exposure amount, the mark “1” indicates the one-step plus correction mode,
“B” indicates the valve mode, and the mark “−1” indicates the one-step minus correction mode. After the first display section 41 is selected as the display section whose display content is to be changed by the operation switch 8a, the pointer 42 is rotated 90 degrees in the clockwise direction each time the operation switch 8b is operated. That is, the exposure amount correction mode is "no correction",
The mode switches in the order of "first-step plus correction mode", "valve mode", and "first-step negative correction mode".

The second display section 51 comprises a pointer 52 driven by a motor (not shown) and a scale plate 53, and displays the focus adjustment mode of the taking lens. On the scale plate 53, marks "AF", "∞" and "3" indicating the scale and the mode are written at positions corresponding to 0 o'clock, 4 o'clock and 8 o'clock, respectively. The mark “AF” indicates the autofocus mode, “∞” indicates the distant view mode, and “3” indicates the normal focus mode. This second display unit 5 is operated by the operation switch 8a.
After 1 is selected as the display section whose display content should be changed,
The pointer 52 is set to 120 each time the operation switch 8b is operated.
It is driven to rotate in clockwise direction every degree. That is, the focus adjustment mode switches in the order of “autofocus mode”, “distant view mode”, and “normal focus mode”.

The third display unit 61 is composed of a pointer 62 driven by a motor (not shown) and a scale plate 63, and displays the flash photographing mode. The dial 63 has a clock of 0
Marks "A", "C", "FI", and "PF" indicating the scale and the mode are written at positions corresponding to hours, 3 o'clock, 6 o'clock, and 9 o'clock, respectively. The mark “A” indicates the automatic light emission mode, and the mark “C” indicates the light emission prohibition mode. The mark "FI" indicates the forced light emission mode, and the mark "PF"
Indicates the pre-flash mode. After the third display portion 61 is selected as the display portion whose display content should be changed by the operation switch 8a, the pointer 62 is rotationally driven by 90 degrees in the clockwise direction each time the operation switch 8b is operated. That is, the flash photographing mode is switched in the order of “automatic light emission mode”, “light emission prohibition mode”, “forced light emission mode”, and “preflash mode”.

FIG. 5 is a flowchart showing a display control program executed by the control device 1. The basic operation of the first embodiment will be described with reference to this flowchart. When the operation switch 8a is operated, the control device 1 starts executing this control program. In step S1 after the start of execution, the display unit is selected in a predetermined order from the plurality of display units 41, 51, 61 of the display device 2 as the display unit whose display content should be changed. In this embodiment, the display unit 4
1, the display unit 51, and the display unit 61 are selected in this order. In the following step S2, it is determined whether or not the operation switch 8a has been operated again. If the operation switch 8a has been operated, the process returns to step S1 to select the display unit in the next order as the display unit to be changed, and if it has not been operated. In step S3, the pointer of the previously selected display unit is drive-controlled so as to be different from the pointers of the other display units. That is, the operation switch 8a
By controlling the display pointer of the selected display unit to be different from the pointers of other display units each time you operate, you can identify which display unit among the multiple display units is to be changed. To

Next, in step S4, it is determined whether or not the operation switch 8b is operated, and if it is operated, the process proceeds to step S5, and if not, the process proceeds to step S6. At step S5, the pointer of the selected display unit is drive-controlled to change the display content, and the process returns to step S3 again. In step S6, it is determined whether or not the operation switch 8a is operated, and if it is operated, step S7.
If it is not operated, the program execution is terminated. In step S7, the display content indicated by the pointer of the previously selected display unit is set, and then the process returns to step S1 and the above-described processing is performed on the display unit in the next order.

Next, the detailed operation of changing the display contents by taking the second display section 51 of the display unit 2 as an example will be described.
When the display unit 2 is in the state shown in FIG. 4, the operation switch 8
The second display unit 5 is operated as the display unit to be changed by operating a twice.
When 1 is selected, as shown in FIG. 6, the control device 1 drives and controls the pointer 52 of the display 51 so as to be different from the pointers 32, 42 and 62 of the other display portions 31, 41 and 61, and “AF” is displayed.
Set it to the middle position between the scale and the "∞" scale. At this time, the pointers 32, 42 and 62 of the other indicators 31, 41 and 61 remain in the positions shown in FIG. 4, and the pointer 52 of the second display section 51 is kept.
Since only the scale is set at an intermediate position between the scales, it is easy to understand that the second display unit 51 is currently the target of changing the display content. When the operation switch 8b is operated in this state, as shown in FIG. 7, the control device 1 drives and controls the pointer 52 and sets it to an intermediate position between the "∞" scale and the "3" scale. If the operation switch 8a is further operated in this state,
As shown in FIG. 8, the control device 1 sets the pointer 52 on the “∞” scale. That is, the distant view mode (∞) is set as the focus adjustment mode.

At this time, since the operation switch 8a is operated, the third display section 61 which is the display section in the next order is selected as the display section to be changed. Then, the control device 1 drives and controls the pointer 62 of the third display portion 61 and sets the pointer 62 to an intermediate position between the "A" scale and the "C" scale shown in FIG. 8 from the position shown in FIG. When the operation switch 8b is operated in this state, the control device 1 drives and controls the pointer 62, the "C" scale and the "F" scale.
Set to the middle position of the "I" scale. Further, when the operation switch 8a is operated, the control device 1 drives and controls the pointer 62 to set it on the "C" scale. That is, the flash prohibition mode is set as the flash photography mode.

Second Embodiment Next, when any one of the plurality of display units is selected as a display unit whose display content is to be changed by the common operation switch, the pointer of the display unit is selected. Second Embodiment A description will be given of a second embodiment in which the display unit to be changed is reciprocated around the currently set scale. The configuration and the basic operation of the second embodiment are the same as those of the first embodiment shown in FIGS. 2 to 5, and the illustration will be omitted and the different points will be mainly described. When the display device 2 is in the state shown in FIG. 4, if the operation switch 8a is operated twice and the second display portion 51 is selected as the display portion to be changed, as shown in FIG. The pointer 52 of 51 is replaced with the other display units 31, 4
The drive is controlled so as to be different from the pointers 32, 42, 62 of 1, 61, and reciprocating movement is performed around the "AF" scale. At this time, the pointers 32, 42 of the other indicators 31, 41, 61,
62 is still in the position shown in FIG. 4, and since only the pointer 52 of the second display section 51 is reciprocating around the scale, the second display section 51 is currently the target for changing the display content. It is easy to see that Operation switch 8 in this state
When b is operated, the control device 1 causes the pointer 52 to reciprocate around the next "∞" scale. Further, when the operation switch 8a is operated in this state, the control device 1 fixes the pointer 52 at the position of "∞" scale. That is, the distant view mode (∞) is set as the focus adjustment mode. Further, at this time, since the operation switch 8a is operated, the third display unit 61 which is the display unit in the next order is selected as the display unit to be changed. Then, the control device 1 uses the pointer 62 of the third display unit 61.
Reciprocate around the "A" scale.

-Third Embodiment-Next, when any one of the plurality of display units is selected as a display unit whose display content is to be changed by the common operation switch, the pointer of the display unit is selected. A third embodiment will be described in which the display is to be changed by rotating clockwise in the clockwise direction. The configuration and the basic operation of the third embodiment are similar to those of the first embodiment shown in FIGS. 2 to 5, and their illustration is omitted, and the difference will be mainly described.
When the display unit 2 is in the state shown in FIG. 4, the operation switch 8
The second display unit 5 is operated as the display unit to be changed by operating a twice.
When 1 is selected, as shown in FIG. 10, the control device 1 causes the pointer 52 of the second display unit 51 to move to the other display units 31, 41, 61.
The drive is controlled so as to be different from the hands 32, 42, and 62, and the hands are rotated in the clockwise direction. At this time, the other indicators 31,
The pointers 32, 42, and 62 of 41 and 61 are still in the positions shown in FIG. 4, and only the pointer 52 of the second display section 51 is rotating. Therefore, the second display section 51 is currently subject to change of display contents. It is easy to see that When the operation switch 8b is operated in this state, the control device 1 stops the pointer 52 at the next scale. When the operation switch 8b is operated again, the control device 1 rotates the pointer 52, and when the operation switch 8b is further operated, the pointer 52 is stopped. Figure 10
The state in which the pointer 52 is stopped on the "∞" scale by the operation switch 8b is shown. When the operation switch 8a is operated in this state, the distant view mode (∞) is set as the focus adjustment mode, and the next third display section 61 is selected as the display section to be changed. Then, the control device 1 rotates the pointer 62 of the third display portion 61 in the clockwise direction.

As described above, the common operation switch 8 for changing each display content is displayed on the plurality of display sections for displaying various kinds of photographing information by the pointer which is rotationally driven on the scale plate.
a and 8b are provided. First, each time the operation switch 8a is operated, the display section is selected in a predetermined order, the pointer of the selected display section is drive-controlled so as to be different from the pointers of the other display sections, and the operation switch is operated. Since the display contents of the selected display unit are changed each time 8b is operated, the display contents of all the display units can be changed by the two operation switches 8a and 8b for a plurality of display units. The switch installation space can be saved, the display unit to be changed can be easily identified, and the operability when changing the display content is improved.

In each of the above embodiments, the pointer on the display unit is set at an intermediate position between the scales, the pointer is reciprocated around the scale being set, or the pointer is rotated clockwise. However, the method of moving the pointer for indicating that it is the display unit of the change target is not limited to the above-mentioned embodiment, and how to move it if it can be distinguished from other guide lines. But it's okay.

Further, in each of the above-mentioned embodiments, the display unit for displaying the number of frames to be photographed, the exposure amount correction mode, the focus adjustment mode and the flash photographing mode has been described as an example. However, various photographing information other than the above is displayed. The present invention can be applied to a display device.

In the configuration of the above embodiment, the display unit 3
1, 41, 51 and 61 are display means, and the operation switch 8a
Represents the first operating member, the operating switch 8b constitutes the second operating member, and the control device 1 constitutes the selecting means and the drive controlling means.

[0026]

As described above, according to the invention of claim 1, every time the first operating member is operated, one of the plurality of display means is selected in a predetermined order and selected. Since the guide of the displayed display means is controlled to be different from the guide of the other display means, the display means whose display content is to be changed can be easily identified. Further, according to the invention of claim 2, each time the second operating member is operated, the pointer of the display means selected as the target for changing the display content by the first operating member is drive-controlled to change the display content. Therefore, the display contents of the plurality of display means can be easily changed by the first and second operation members,
The installation space for operating members can be saved.

[Brief description of drawings]

FIG. 1 is a diagram for responding to a complaint.

FIG. 2 is a block diagram showing the configuration of an embodiment.

FIG. 3 is a rear view of a camera including the display device according to the embodiment.

FIG. 4 is an enlarged view of a display according to an embodiment.

FIG. 5 is a flowchart showing an example of a display control program executed by a microcomputer.

FIG. 6 is a diagram illustrating a manner of movement of a pointer for indicating that the display content is a display unit whose display content should be changed.

FIG. 7 is a diagram illustrating a manner of movement of a pointer for indicating that the display content is a display unit to be changed.

FIG. 8 is a diagram illustrating a movement of a pointer indicating that the display content is a display unit whose display content should be changed.

9A and 9B are diagrams for explaining how to move a pointer for indicating that the display content is to be changed.

FIG. 10 is a diagram illustrating a manner of movement of a pointer for indicating that the display content is a display unit whose display content should be changed.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Control device 2 Display device 3 Focal length detection device 4 Lens drive device 5 Distance measuring device 6 Flash device 7 Clock 8a, 8 Operation switch 9 Film feeding device 10 Photograph frame counting device 11 Half press switch 12 Release switch 13 Exposure device 14 memory 21 camera body 22 release button 23 operation switching dial 23a-23c index 24 back cover 25 finder 31 large display section 32 large pointer 33, 43, 53, 63, 100a, 100b, 100
c scale plate 41 first display section 42, 52, 62, 101a, 101b, 101c pointer 51 second display section 61 third display section 102a, 102b, 102c display means 103 first operation member 104 selection means 105, 105A drive Control means 106 Second operation member

Claims (2)

[Claims] 1. A display device of a camera for displaying various kinds of photographing information, a plurality of display means for displaying the various kinds of photographing information by a pointer which is rotationally driven on a scale plate, and a display among the plurality of display means. A first operation member for selecting a display unit whose contents should be changed; and a selection unit for selecting the display unit from the plurality of display units in a predetermined order each time the first operation member is operated. A display device for a camera, comprising: drive control means for driving and controlling the pointer of the display means selected by the selecting means so as to be different from the pointers of the other display means. 2. The display device for a camera according to claim 1, further comprising a second operation member for changing the display content of the display unit selected by the selection unit, wherein the drive control unit includes the second operation member. A display device of a camera, characterized in that the display contents are changed by drivingly controlling a pointer of the selected display means every time the second operation member is operated.