JP2019148632A - camera - Google Patents

Abstract

To provide a camera that enables a user to easily and intuitively adjust a stroke of a button.SOLUTION: A camera has: a button on which a member outputting a voltage according to a strain amount is stuck; a display screen for displaying various information; an operation member; detection means for detecting a quantity by which the button is pressed in; control means for controlling a state of a device according to the pressing-in quantity of the button; means for applying a voltage to the member from outside to vibrate the member when the button is pressed in by a predetermined quantity; and adjustment means through which a user can adjust the pressing-in quantity of the button. A stroke adjustment image is displayed on the display screen, and when the user actually presses in the button on the stroke adjustment screen, the current pressing-in quantity is visually reported to the user. When the pressing-in quantity reaches a current set value, the member is vibrated to let the user have an actual use feeling.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a camera, and more particularly to a camera capable of adjusting a stroke of a button using tactile feedback.

  Conventionally, a release button of a camera as an imaging device is a mechanical two-stage switch. When the first-stage switch is turned on (hereinafter referred to as SW1 or half-pressed state), preparation for shooting such as autofocus and exposure is started, and the second-stage switch is turned on (hereinafter referred to as SW2 or fully pressed state). ) To enter the shooting operation.

  In this configuration, the pressing stroke length until the half-pressed state and the fully-pressed state are physically set at the time of manufacturing the imaging apparatus, and the user cannot change the stroke length according to his / her preference.

  With respect to the above problem, Patent Document 1 proposes a method that enables stroke adjustment using a capacitance sensor, and Patent Document 2 proposes a method that enables stroke adjustment using a strain sensor.

JP 2012-185249 A JP 2014-21408 A

  However, in the methods proposed in Patent Documents 1 and 2, for example, the fact that the release button is pushed down to the half-pressed state cannot be recognized by the touch of the finger, so that it is not convenient for actual adjustment or use.

  An object of the present invention is to provide a camera that allows a user to easily and intuitively adjust button strokes.

  In order to achieve the above object, a camera according to the present invention has a button attached with a member that outputs a voltage according to the amount of distortion, a display screen that displays various types of information, an operation member, and the button is depressed. Detecting means for detecting the amount, control means for controlling the state of the apparatus by the amount of pressing of the button, means for vibrating the member by applying a voltage to the member from the outside when the button reaches a predetermined amount of pressing And an adjustment means that allows the user to adjust the push amount of the button, and displays a stroke adjustment screen on the display screen. When the user actually pushes the button on the stroke adjustment screen, the current push amount is displayed by the user. When the pressing amount reaches the current set value, the member is vibrated to give the user a real feeling of use.

  According to the present invention, the user can easily and intuitively adjust the button stroke.

The figure which shows the example of the release button structure using the piezoelectric film in 1st embodiment of this invention. Diagram showing the screen for stroke adjustment Flow chart for stroke adjustment The figure which shows the attention screen when the stroke is adjusted to the position where SW2 is shallower than SW1 The figure which shows the example of the release button structure which deleted the switch in 2nd embodiment.

(First embodiment)
FIG. 1 is a diagram showing an example of the configuration of a release button using a piezoelectric film in the first embodiment of the present invention. When the release button (101) is pushed in, the release button foot (102) is pushed into the switch (103) installed at the bottom, and the switch (103) reaches the first adjustment position. It has a first-stage switch function (SW1) that is turned on when it is pushed in and a second-stage switch function (SW2) that is turned on when it is pushed down to the second adjustment position.

  The member (104) that outputs a voltage according to the amount of strain is a piezoelectric film. When SW1 and SW2 are turned on, a voltage is applied to the piezoelectric film from the outside to vibrate the piezoelectric film. The switch (103) may be, for example, a method that detects a push-in amount using a capacitance, or may be a method that detects a push-in amount using a strain sensor. However, the detection method is not limited as long as the method can detect the push-in amount in an analog manner.

  A general operation of the imaging apparatus will be described with reference to FIG. When a power switch (not shown) is turned on, the control microcomputer (105) starts to start and preparation for detecting the state of the release button (101) is started. When the release button (101) is depressed by the user, photographing preparation operations such as autofocus and exposure setting are performed in a state where SW1 is turned on. Further, when the release button (101) is pushed in and the SW2 is turned on, the control microcomputer (105) controls an imaging block (not shown) to perform an imaging operation and data storage.

  Next, the stroke adjustment screen will be described with reference to FIG. The display screen (200) is a touch panel, and the user can perform various operations with a finger. The bar graph (201) displayed on the left side shows how much the release button is currently pressed, and the gray portion (202) extends from top to bottom depending on the amount pressed. Yes.

  Black triangle mark (203) and white triangle mark (204) indicate operation icons for adjusting the stroke amount of half press (SW1) and full press (SW2), respectively. Move the triangle mark up and down to adjust the stroke. The black triangle mark (203) and the white triangle mark (204) are arranged on the opposite sides of the bar graph (201), so that even when the set values of SW1 and SW2 are close, erroneous operation is performed. Can be prevented.

  The determination and return icons displayed on the right side are icons related to whether or not to determine the stroke amount. When the user selects determination, the current setting value is saved and the stroke adjustment screen is exited. If Return is selected, the current setting value is not saved and the stroke adjustment screen is exited.

  Here, the bar graph (201) and the triangular marks (203) (204) are displayed on the left half of the display screen (200), so that the left hand of the user adjusts the stroke amount and the right hand is the release button. Thus, the confirmation of the stroke set value and the operation can be clearly divided, and the stroke adjustment operation becomes easy.

  The flow when the user performs stroke adjustment will be specifically described with reference to the flowchart of FIG. When the user operates the imaging apparatus to start stroke adjustment (S301), the adjustment screen of FIG. 2 is displayed, and the user can perform the following various operations (S302).

  In the adjustment screen, the user uses the touch panel to change the positions of the triangle marks (203) and (204) to adjust the stroke (S303). The changed stroke adjustment position is immediately reflected in the adjustment screen.

  When the user pushes the release button (S304), the gray portion (202) of the bar graph grows according to the push amount (S305). Then, it is determined whether or not the pushing amount is the same as the value set in S303 (S306). Only when it is the same, a voltage is applied to the piezoelectric film and the release button is vibrated (S307). The release button does not vibrate whether the push-in amount is deeper or shallower than the set value. In this step, the release button is vibrated regardless of whether SW1 or SW2 is the same as the push amount.

  By repeating S303 to S307, the user adjusts the stroke amounts of SW1 and SW2 to a desired amount. When the adjustment is completed and the adjustment screen is to be ended, the changed value is saved by selecting the decision (S308), and the adjustment is ended (S309). At this time, if the stroke amount of SW2 is set to be shallower than the stroke amount of SW1, a message for confirming whether or not the release button can be used as it is, although the half-press does not operate with the release button in the current setting before the end. Is displayed and notified to the user (FIG. 4).

  If the return is selected, the adjustment ends without saving the adjustment value, and the stroke amount becomes the same set value as before the stroke adjustment start.

  Also, in order to prevent users from being confused during actual use, when a part of the release button is assigned to a button other than the release button, such as when using the thumb AF function, The piezoelectric film is not allowed to vibrate even when the button pressing amount reaches the set value of SW1.

  As described above, by using the tactile feedback by the piezoelectric film, the user can easily and intuitively adjust the stroke amount of the button.

(Second embodiment)
Next, the configuration of the release button according to the second embodiment of the present invention will be described with reference to FIG. In the first embodiment, the push amount is determined based on how much the switch (103) is pushed. However, since the piezoelectric film can output a voltage according to the amount of strain, the piezoelectric film can have the function of a switch by reading the output voltage value from the piezoelectric film to determine the push amount. Therefore, it is possible to eliminate the switch.

  FIG. 5 shows the configuration of the release button. Since the stroke adjustment screen and the adjustment flow are the same as those in the first embodiment, description thereof will be omitted. Regarding the relationship between the amount of pressing the release button and how the bar graph (202) extends, the piezoelectric film has temperature characteristics, etc. Even if the same pressing method is used, the output voltage value changes if the environment is different. If it is read as an absolute value, the amount of button press may not be detected stably.

  For this reason, when the push-in amount is determined by a piezoelectric film, the voltage value is corrected and read. The parameters for correction are stored in advance as a table, and when the environment changes, the voltage value is corrected and read in accordance with the environment, and converted into a push-in amount (= bar graph is extended).

  As described above, by determining the pressing amount of the release button with the piezoelectric film, the user can adjust the stroke amount of the button easily and intuitively as in the first embodiment, and the switch is eliminated. This also reduces the number of parts.

(Other examples)
The present invention supplies a program that realizes one or more functions of the above-described embodiments to a system or apparatus via a network or a storage medium, and one or more processors in a computer of the system or apparatus read and execute the program This process can be realized. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.

101 Release button 102 Release button foot 103 Switch 104 Member that outputs voltage according to the amount of distortion 200 Display screen 203 for stroke adjustment Operation icon 204 for changing stroke amount of half-press (SW1) Full-press (SW2) Operation icons for changing the stroke amount

Claims (3)

A button with a member that outputs a voltage according to the amount of strain;
A display screen for displaying various information;
An operation member;
Detecting means for detecting the amount of pressing of the button;
Control means for controlling the state of the device by the amount of pressing of the button;
Means for applying a voltage to the member from the outside when the button reaches a predetermined pressing amount to vibrate the member;
An adjustment means by which the user can adjust the amount of pressing of the button;
Have
Display the stroke adjustment screen on the display screen,
When the user actually presses the button on the stroke adjustment screen, the user is visually notified of the current pressing amount,
A camera characterized in that when the push-in amount reaches a current set value, the member is vibrated to give an actual feeling of use to the user.   The camera according to claim 1, wherein the pre-detection unit detects the output according to the amount of distortion of the member.   The camera according to claim 2, wherein the output from the member is read with correction according to the environment.