JPH0792543A - Display device of camera - Google Patents

Abstract

PURPOSE:To improve the setting operability of information about focusing. CONSTITUTION:The display device of a camera is provided with a display part 11 displaying the information about the focusing by a painter 11b driven to be rotated on a dial 11a and a set means indicating one out of plural indexes 11c-11f arranged on the dial 11a by the painter 11b and setting the information about the focusing corresponding to the index. On the dial 11a, the index 11e showing an automatic focusing mode and the index 11f showing the distant side of a photographing distance or the index 11d showing a forcible point at infinity are adjacently arranged.

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 information.

[0002]

2. Description of the Related Art A display device of a camera is known which displays various kinds of information on a scale plate by a pointer which is rotationally driven by an electric drive source (for example, Japanese Patent Laid-Open No. 5-150).
307). With this type of camera display,
For example, an index showing various operation modes is arranged on the scale plate,
The operation mode is set by rotationally driving the pointer and designating a desired mode index.

By the way, it is conceivable to use such a rotary pointer type display device to display information relating to the focus adjustment of the photographing lens. That is, the index of the autofocus mode, the index indicating the shooting distance from the closest to the forced infinity at the time of manual focusing are arranged on the scale plate,
A desired index is designated by the pointer, and information regarding focus adjustment corresponding to the index is set.

However, in such a rotary pointer type display device, when the frequently set information is arranged apart on the scale plate, the pointer must be rotated greatly each time to match the desired information index. However, there is a problem that the setting operation becomes complicated.

An object of the present invention is to improve the operability of setting information regarding focus adjustment.

[0006]

The present invention will be described with reference to FIG. 1 showing an embodiment. The present invention is based on a scale plate 11a.
A display unit 11 that displays information regarding focus adjustment by a pointer 11b that is rotationally driven above, and a plurality of indicators 11c, 11d, 11 arranged on the scale plate 11a by the pointer 11b.
It is a display device of a camera provided with a setting means for indicating any one of e and 11f and setting information regarding focus adjustment corresponding to the index, and is an index 11e of the autofocus mode on the scale plate 11a. By arranging the index 11f on the far side of the shooting distance or the index 11d on the infinity side adjacent to each other, the above object is achieved.

[0007]

The index 11 of the autofocus mode is displayed on the scale plate 11a of the display unit 11 for displaying information on focus adjustment.
Since e and the index 11f on the edge of the shooting distance or the index 11d for forced infinity are arranged adjacent to each other, the focus adjustment is completed by only slightly rotating the setting means, and the setting operability for the focus adjustment is improved. improves.

Incidentally, in the section of means and action for solving the above problems for explaining the constitution of the present invention, the drawings of the embodiments are used for the purpose of making the present invention easy to understand. It is not limited to.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram showing a display device of one embodiment, FIG. 2 is a perspective view of a camera equipped with the display device of one embodiment, and FIG.
2 is a top view of the camera shown in FIG. In FIG. 1, the display unit 1 of the camera includes a photographing distance display unit 11, a frame number display unit 12, an exposure correction display unit 13, and an aperture display unit 14,
Each has scale plates 11a-14a and pointers 11b-14b. On the scale plate 11a of the photographing distance display section 11,
An index 11c indicating a shooting distance of 0.4 to 6 m, an index 11d indicating forced infinity, and an index 11e indicating an autofocus mode are provided, and the index 11d indicating forced infinity.
And the index 11e indicating the autofocus mode are arranged adjacent to each other. The scale plate 12a of the number-of-frames display unit 12 is provided with indexes from empty index 12c to 36 frames,
The scale plate 13a of the exposure correction display unit 13 is provided with indexes indicating the exposure correction values of +2 to -2. Further, on the scale plate 14a of the aperture display unit 14, an index indicating the aperture value of F2.8 to F22 and an index 14 indicating the program automatic exposure mode.
c and are provided.

The display 1 is provided on the upper surface of the camera body 2 as shown in FIGS. Reference numeral 3 is a taking lens. On the upper surface of the camera body 2, in addition to the display 1, a mode selector 4 for setting various exposure modes and the pointers 11b to 14b of the display 1 are rotated to indicate a desired index, and various information is displayed. Command dial 5 to set
An AF mode button 6, an exposure correction button 7, and a release button 8 are provided. If the mode selector 4 is set to the index P, the program automatic exposure mode is set, and if it is set to the index A, the aperture priority exposure mode is set.

When the command dial 5 is turned while the AF mode button 6 is being pressed, the pointer 11b of the photographing distance display section 11 is rotated according to the rotation direction and the rotation amount, and the index 11e is set to 0 in the auto focus mode or the manual focus mode. An arbitrary shooting distance can be set in the range from a close-up distance of 0.4 m to infinity. When the command dial 5 is turned while pressing the exposure compensation button 7, the pointer 1 of the exposure compensation display section 13 is changed according to the rotation direction and the rotation amount.
3b rotates, and the exposure correction value can be set. Further, the pointer 14b of the aperture display unit 14 displays the aperture value calculated based on the photometry result of the field in the program automatic exposure mode. When the aperture priority exposure mode is set by the mode selector 4, turning the command dial 5 causes the pointer 14b to rotate in accordance with the rotation direction and the amount of rotation, and the aperture can be set within the range of F2.8 to F22. it can.

FIG. 4 is a block diagram showing the structure of an embodiment. In the figure, 6a is a switch that opens and closes in conjunction with the AF mode button 6, and closes when the AF mode button 6 is pressed. Reference numeral 7a is a switch that opens and closes in conjunction with the exposure compensation button 7, and closes when the exposure compensation button 7 is pressed. Reference numeral 5a is a pulse generator that rotates in association with the command dial 5, and outputs a pulse signal in accordance with the rotation direction and rotation amount of the command dial 5. Drive circuit 11
k to 14k are pointers 11b to 14 of the display units 11 to 14, respectively.
Stepping motor 11m to 14m for driving b to rotate
Is a drive circuit for driving the. Reference numeral 10 is a control circuit composed of a microcomputer and its peripheral parts, and rotationally drives the pointers 11b to 14b of the display 1 based on the information from the switches 6a and 7a and the pulse generator 5a.

FIG. 5 is a flowchart showing the focus adjustment program. AF mode button 6 is pressed and switch 6
When a is closed, the microcomputer of the control circuit 10 starts executing the program shown in FIG. First, in step S1, a pulse signal corresponding to the rotation direction and the rotation amount of the command dial 5 is input from the pulse generator 5a. In a succeeding step S2, the drive circuit 11k is controlled,
Command dial 5 on the pointer 11b of the shooting distance display section 11
It is rotationally driven according to the rotation direction and the amount of rotation. Step S
3 indicates that the pointer 11b is the autofocus mode indicator 11e.
If the auto focus mode index 11e is set, the process proceeds to step S4, and if not, the process proceeds to step S5. In step S4, the autofocus mode is set and the program execution is terminated. In this autofocus mode, the taking lens 3 is driven by a drive circuit and a motor (not shown) according to a distance measurement result by a distance measuring device (not shown). On the other hand, in step S5, the photographing lens 3 is driven to a position corresponding to the photographing distance set by the pointer 11b.

In normal photography, the focus of the photographic lens 3 is often adjusted by autofocus, or the photographic lens 3 is often set to a forced infinity position to photograph a distant view such as a landscape. The forced infinity index 11d or the autofocus mode index 11e is frequently set. In this embodiment, since the forced infinity index 11d and the auto focus mode index 11e are arranged adjacent to each other on the scale plate 11a of the photographing distance display unit 11, in many cases, the command dial 5 is rotated by one scale for focusing. Adjustment is completed, and setting operability for focus adjustment is improved.

In addition, the photographing lens is often set at the farthest photographing distance to perform photographing, and as shown in FIG. 6, the index 11f on the far side of the photographing distance is arranged adjacent to the autofocus mode index 11e. You may.

In the construction of the above embodiment, the photographing distance display section 11 is the display section, the scale plate 11a is the scale plate, and the pointer 1
1b is a pointer, command dial 5 and AF mode button 6 are setting means, index 11e is an index of autofocus mode, index 11f is an index on the far side of the shooting distance,
The index 11d constitutes each index of forced infinity.

[0017]

As described above, according to the present invention, the index of the autofocus mode, the index on the edge side of the photographing distance, or the index of forced infinity is displayed on the scale plate of the display unit that displays information regarding focus adjustment. Since and are arranged adjacent to each other, the focus adjustment is completed with a slight rotation of the setting means,
The setting operability for focus adjustment is improved.

[Brief description of drawings]

FIG. 1 is a diagram showing a display according to an embodiment.

FIG. 2 is a perspective view of a camera including a display according to an embodiment.

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

FIG. 4 is a block diagram showing a configuration of an example.

FIG. 5 is a flowchart showing a focus adjustment program according to an embodiment.

FIG. 6 is a diagram showing a modified example of a display device.

[Explanation of symbols]

1 display device 2 camera body 3 shooting lens 4 mode selector 5 command dial 5a pulse generator 6 AF mode button 6a switch 7 exposure correction button 7a switch 8 release button 10 control circuit 11 shooting distance display unit 12 frame number display unit 13 exposure correction Display unit 14 Aperture display unit 11a to 14a Scale plate 11b to 14b Pointer 11c, 11d, 11e, 11f, 12c, 14c Index 11k to 14k Drive circuit 11m to 14m Stepping motor

Claims (1)

[Claims] 1. A display unit for displaying information relating to focus adjustment by a pointer which is rotationally driven on a scale plate, and the pointer for indicating any one of a plurality of indexes arranged on the scale plate, A display device of a camera comprising setting means for setting information regarding focus adjustment corresponding to the index, wherein an index in an autofocus mode and an index on the far side of the shooting distance or forced infinity is provided on the scale plate. A display device for a camera, which is arranged adjacent to the index.