JPH0876224A - Display device - Google Patents

Abstract

(57) [Summary] [Purpose] To make it easier to read the indicated amount while achieving miniaturization. [Structure] The displacement amount of the pointer 2 per unit information amount is variable, and the pointer 2 is driven by switching to an arbitrary displacement amount such as 6 degrees or 30 degrees.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art A rotary pointer type display device is known which displays various information by rotating a pointer by 6 degrees per unit information amount (for example, Japanese Patent Laid-Open No. 5-33341).
No. 8).

However, when such a display device is installed in a camera to display various information, the display unit must be downsized with the downsizing of the camera. There are problems that it is difficult to visually recognize the displacement of the pointer, the indication amount is erroneously recognized, and the reading error becomes large.

It is an object of the present invention to provide a display device which is easy to read an instruction amount while being downsized.

[0005]

In order to achieve the above object, the invention according to claim 1 provides a pointer driven on a scale plate,
It is applied to a display device provided with a drive control means for driving and controlling the pointer according to the amount of information to be displayed, and the drive control means makes the displacement amount of the pointer per unit information amount variable. 3. The display control device according to claim 2, wherein the pointer is rotatably driven on the scale plate, and is provided with switching means for switching the displacement amount of the pointer per unit information amount to 6 degrees or 30 degrees, and the drive control means. According to the above, the pointer is driven and controlled by the displacement amount per unit information selected by the switching means. The display device according to claim 3 further comprises a displacement amount display means for displaying a displacement amount of the pointer per unit information amount, and the displacement amount per unit information amount being selected by the drive control means is displayed as the displacement amount. It is displayed on the means. The display device according to claim 4 comprises index display means for displaying the index of the scale plate, and displays on the index display means an index according to a displacement amount per unit information amount being selected by the drive control means. It was done like this.

[0006]

The displacement amount of the pointer per unit information amount is made variable, and the pointer is rotationally driven by switching to an arbitrary displacement amount such as 6 degrees or 30 degrees. Further, the currently selected displacement amount is displayed or an index corresponding to the selected displacement amount is displayed.

[0007]

EXAMPLE An example in which the display device of the present invention is applied to a film counter of a camera will be described. -First Embodiment- FIG. 1 is a front view of a display unit of a film counter of the first embodiment, and FIG. 2 is a functional block diagram showing a configuration of a camera including the film counter of the first embodiment. In FIG. 1, the display portion of the film counter is composed of a scale plate 1 and a pointer 2 which is rotationally driven on the scale plate 1.
On the scale plate 1, 3 on the fine line scale 1a with a pitch of 6 degrees.
Thick line graduations 1b having a 0-degree pitch are formed in an overlapping manner.
It should be noted that the fine line scale 1a is scaled up to 36 according to the maximum 36-shot film.

In FIG. 2, a switch 3 is a main switch for operating the camera, and a switch 4 is a changeover switch for changing the displacement amount of the pointer 2 per unit information amount. Here, the unit information amount of the film counter is one sheet (also referred to as one frame), and the displacement amount of the pointer 2 per sheet is 6 degrees or 30 degrees. The number-of-photographed-counter counting device 5 counts the number of photographed films and outputs them to the microcomputer 6. The microcomputer 6 has built-in peripheral parts such as a memory, performs sequence control of the camera and various calculations, and controls display of the film counter. The driver 7 is a motor 7m
To rotate the pointer 2.

When the main switch 3 of the camera is turned on, the photographing of the ninth frame of the film is completed and the number of photographed number counting device 5 transfers the number of photographed images to the microcomputer 6.
When 9 "is input, the microcomputer 6 controls the driver 7 to drive the motor 7m, rotate the pointer 2 from" 8 "to" 9 "on the fine line scale 1a, and as shown in FIG. “9” is displayed. In this state, when the displacement amount of the pointer 2 per sheet is switched from 6 degrees to 30 degrees by the changeover switch 4, the microcomputer 6
3 controls the driver 7 to drive the motor 7m to rotate the pointer 2 from the position "9" of the fine line scale 1a to the position "9" of the thick line scale 1b, that is, the position corresponding to 9 o'clock of the timepiece. As shown in, the thick line scale 1b displays the number of shots "9".

-Second Embodiment- FIG. 4 is a front view of the display portion of the film counter of the second embodiment, and FIG. 5 is a functional block diagram showing the configuration of a camera equipped with the film counter of the second embodiment. Is. It should be noted that the same components as those in the first embodiment shown in FIGS. 1 and 2 are designated by the same reference numerals, and different points will be mainly described. The indicator light 8a is lit when the pointer displacement amount of 30 degrees / sheet is selected, and the indicator light 9a is lit when the pointer 2 is driven to rotate for one revolution or more. These indicator lights 8a and 9a are arranged at positions deviating from the line connecting the center of rotation of the pointer 2 and each scale, so that each scale instruction by the pointer 2 can be easily read.

The microcomputer 6A controls the driver 8 to turn on the indicator lamp 8a when the pointer displacement amount per sheet is switched to 30 degrees by the changeover switch 4, and to display the number of shots by the thick line scale 1b. Inform the photographer. The display of the number of shots by the thick line scale 1b is 1
When the number of sheets is two or more, the pointer 2 is driven to rotate on the scale plate 1 for one revolution or more. At this time, the microcomputer 6A controls the driver 9 to turn on the indicator lamp 9a, and the pointer 2
Notify the photographer that the camera has been rotated for more than one lap. The photographer recognizes the number of shots by adding 12 to the value indicated by the thick line graduation 1b and the pointer 2 when the indicator light 8a is turned on and the displacement amount of 30 degrees / sheet is reached and the indicator light 9a is further turned on. .

The following table shows the indicated values of the film counter of FIG. 4 for the turning on / off state of the indicator lights 8a and 9a.

[Table 1]

-Third Embodiment- FIG. 6 is a front view of the display portion of the film counter of the third embodiment, and FIG. 7 is a functional block diagram showing the configuration of a camera equipped with the film counter of the third embodiment. Is. It should be noted that devices similar to those in the first and second embodiments described above are designated by the same reference numerals, and differences will be mainly described. This third
In this embodiment, an LCD 10a for displaying an index is provided on the outer periphery of the scale plate 1 of the film counter. The microcomputer 6B controls the driver 10 to control the LCD.
10a is driven to display the index 10b according to the pointer displacement amount per selected sheet. In the example shown in FIG. 6, indexes “0”, ”for the fine line scale 1a with a displacement of 6 degrees / sheet.
15 "," 30 ", and" 45 "are displayed on the LCD 10a.

The indicated value of the film counter shown in FIG. 6 is "10". In this state, when the changeover switch 4 switches the displacement amount to 30 degrees per sheet, the microcomputer 6B causes the driver 7 to move as shown in FIG.
Is controlled to drive the motor 7m to rotate the pointer 2 to the position of the watch on the bold line scale 1b at 10 o'clock, and also to control the driver 10 to drive the LCD 10a.
The indexes 10b of 3 "," 6 "," 9 ", and" 12 "are displayed. Further, as shown by the broken line in Fig. 6, the pointer 2 indicates" 20 "at the displacement of 6 degrees / sheet. If
When the displacement amount is switched to 30 degrees / 1 sheet, as shown by the broken line in FIG. 8, the pointer 2 is rotationally driven to the 8 o'clock position of the timepiece, and the LDC 10a is "14", "16", ".
The indexes 10b of 20 "and" 22 "are displayed.

In each of the above embodiments, the present invention is applied to the film counter of the camera, but the present invention is applied to all display devices for displaying information other than the number of shots. Further, in each of the above-described embodiments, an example in which the displacement amount of the pointer per unit information amount is set to 6 degrees or 30 degrees is shown, but the displacement amount of the pointer per unit information amount is not limited to each of the above embodiments. . Further, in each of the above-described embodiments, the display device provided with the pointer for rotationally driving the scale plate has been described as an example, but the present invention is not limited to the display device for rotationally driving the pointer.

In the configuration of the above embodiment, the microcomputers 6, 6A, 6B, the driver 7 and the motor 7m are drive control means, the changeover switch 4 is changeover means, the indicator lamp 8a is displacement amount display means, and the LCD 10a is. Each of them constitutes an index display means.

[0017]

As described above, according to the present invention, 1
The displacement amount of the pointer per unit amount of information is made variable, for example, 6
Since the pointer is driven by switching to any displacement amount such as 30 degrees or 30 degrees, the instruction amount can be easily read even if the display device is downsized. Further, since the displacement amount of the pointer per unit information amount currently selected is displayed, it is possible to visually recognize at a glance which displacement amount is currently displayed, and it is possible to accurately read the instruction amount. Further, since the index corresponding to the displacement amount of the pointer per selected unit information amount is displayed, the indicated amount can be visually recognized accurately at a glance even if the displacement amount is switched to an arbitrary amount.

[Brief description of drawings]

FIG. 1 is a front view of a display unit of a film counter according to a first embodiment.

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

FIG. 3 is a diagram illustrating a display example of a film counter according to the first embodiment.

FIG. 4 is a front view of a display unit of the film counter according to the second embodiment.

FIG. 5 is a functional block diagram showing a configuration of a second embodiment.

FIG. 6 is a front view of a display unit of a film counter according to a third embodiment.

FIG. 7 is a functional block diagram showing a configuration of a third embodiment.

FIG. 8 is a diagram illustrating a display example of a film counter according to a third embodiment.

[Explanation of symbols] 1 scale plate 1a fine line scale 1b thick line scale 2 pointer 3 main switch 4 changeover switch 5 image number counting device 6,6A, 6B microcomputer 7,8,9,10 driver 7m motor 8a, 9a indicator light 10a LCD

Claims (4)

[Claims] 1. A display device comprising a pointer driven on a scale plate and drive control means for driving and controlling the pointer according to the amount of information to be displayed, wherein the drive control means per unit information amount. 2. A display device, wherein the displacement amount of the pointer is variable. 2. The display device according to claim 1, wherein the pointer is rotatably driven on the scale plate, and the displacement amount of the pointer per unit information amount is switched to 6 degrees or 30 degrees. A display device, comprising: means, wherein the drive control means drives and controls the pointer according to a displacement amount per unit information selected by the switching means. 3. The display device according to claim 1, further comprising a displacement amount display unit for displaying a displacement amount of the pointer per unit information amount, wherein the drive control unit is selected one unit. A display device, wherein the displacement amount per information amount is displayed on the displacement amount display means. 4. The display device according to claim 1, further comprising an index display unit that displays an index of the scale plate, wherein the drive control unit per unit information amount being selected. A display device displaying an index according to a displacement amount on the index display means.