JP2010061067A - Camera - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a camera in which wrong contacts and malfunctions of a release button are prevented. <P>SOLUTION: The camera includes: a first release button (21), which includes an operation part (21d) at one end thereof and an action part (21c) at the other end thereof and is displaced in a predetermined direction, by pressing the operation part in the predetermined direction; a second release button (22), which comes in contact with the action part of the first release button and is displaced in the predetermined direction, in conjunction with the displacement in the predetermined direction of the first release button; a displacement detecting part (25), which detects the displacement of the second release button; a rotation drive part (54), which rotationally drives the first release button around the center axis of the first release button; a focusing state detecting part (7), which detects the focusing state of the focus optical system of an imaging lens (2), according to the detection result of the displacement detecting part; and a control part (7), which rotationally drives the first release button by the rotation drive part, according to the detection result of the focusing state detecting part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a camera provided with a release button.

  2. Description of the Related Art Conventionally, a switch is provided at a position other than the operation surface of a release button provided on a camera, and a half press operation or a full press operation on the release button by a user is detected by the switch.

As an example of such a release button, conventionally, a technique for detecting a half-press operation of the release button, vibrating the release button at the time of focusing, and notifying the user during the half-press operation is informed. 1.
Japanese Patent Laid-Open No. 5-158120

  However, if vibration is applied to the release button from the vibration motor while the release button is half-pressed, vibration may be transmitted from the release button to the contact point of the switch, causing erroneous contact or malfunction.

  An object of the present invention is to provide a camera that can prevent erroneous contact and malfunction of a release button.

  The invention according to claim 1 has an operation part (21d) at one end and an action part (21c) at the other end, and is displaced in the predetermined direction by pressing the operation part in a predetermined direction. A first release button (21) that is in contact with an action portion of the first release button, and a second release button that is displaced in the predetermined direction in conjunction with the displacement of the first release button in the predetermined direction. 22), a displacement detection unit (25) for detecting the displacement of the second release button, a rotation drive unit (54) for rotationally driving the first release button about the central axis of the first release button, A focus state detection unit (7) that detects a focus state of the focus optical system of the imaging lens (2) according to a detection result of the displacement detection unit, and a detection result of the focus state detection unit, The first release button is rotated by a rotation drive unit. A camera, characterized in that a control unit for driving and rotating (7).

  The invention according to claim 2 has an operation part (53d) at one end and an action part (53c) at the other end, and is displaced in the predetermined direction by pressing the operation part in a predetermined direction. A first release button (53) that is in contact with an action portion of the first release button, and a second release button (displaced in the predetermined direction in conjunction with the displacement of the first release button in the predetermined direction). 22), a displacement detection unit (25) for detecting the displacement of the second release button, a vibration drive unit (54) for applying vibration to the first release button, and imaging according to the detection result of the displacement detection unit An in-focus state detection unit (7) for detecting the in-focus state of the focusing optical system of the lens (2), and the vibration release unit vibrates the first release button according to the detection result of the in-focus state detection unit. Control unit (7) Which is a camera which is characterized.

  A third aspect of the present invention is the camera according to the first or second aspect, wherein the first release button (21) has a protrusion (21a) or a groove on the operation portion (21d, 53d). It is a camera characterized by this.

According to a fourth aspect of the present invention, in the camera according to the first or second aspect, the displacement detection unit (25) is configured such that the displacement of the second release button causes the first release button (21, 53) to move. The camera is characterized by detecting a half-pressed state.
Invention of Claim 5 is a camera of Claim 1, Comprising: The said control part (7) is the said, when the detection result of the said focus state detection part (7) is a focus state, The camera is characterized in that the first release button (21) is rotationally driven by a rotational drive unit (26).

  Invention of Claim 6 is a camera of Claim 1, Comprising: The said control part (7) WHEREIN: When the detection result of the said focusing state detection part (7) is a non-focusing state, The camera is characterized in that the first release button (21) is rotationally driven by the rotational drive unit (26).

  Invention of Claim 7 is a camera of Claim 2, Comprising: The said control part (7) is the said, when the detection result of the said focus state detection part (7) is a focus state, The camera is characterized in that the first release button (53) is vibrated by a vibration drive unit (54).

  Invention of Claim 8 is a camera of Claim 2, Comprising: When the detection result of the said focus state detection part (7) is a non-focus state, the said control part (7) The camera is characterized in that the first release button (53) is vibrated by the vibration driving unit (54).

  Note that the configuration described with reference numerals may be modified as appropriate, and at least a part of the configuration may be replaced with another component.

  ADVANTAGE OF THE INVENTION According to this invention, the camera which can prevent the erroneous contact and malfunction of a release button can be provided.

  Embodiments of the present invention will be described below with reference to the drawings. 2, 5, and 6 shown below are provided with an xyz rectangular coordinate system for easy explanation and understanding. In this coordinate system, the direction toward the left as viewed from the photographer at the position of the camera when the photographer shoots a horizontally long image with the optical axis A horizontal (hereinafter referred to as a normal photographing position) is the x plus direction. . Also, the direction toward the upper side at the normal photographing position is the y plus direction. Furthermore, the direction toward the subject at the normal shooting position is the z plus direction.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. In the first embodiment, a single-lens reflex digital camera will be described as an example.

  FIG. 1 is a block diagram illustrating a configuration of a single-lens reflex camera 1 according to the first embodiment. The camera 1 includes a photographing lens 2, a mirror unit 3, and an image sensor 4 along the optical axis A. Further, of the light incident on the photographing lens 2, the finder portion 5 where the light directed upward in the figure by the mirror portion 3 enters, and the distance measurement where the light directed downward in the drawing by the mirror portion 3 enters. Part 6. The camera 1 further includes a control unit 7 to which information from the image sensor 4 and the distance measuring unit 6 is input. The control unit 7 includes a release button 9, an operation unit 10, a liquid crystal display unit 11, and focus control. The unit 13 is connected.

  Each will be described in detail below. The photographic lens 2 is an optical system that forms an image of subject image light on the imaging surface of the imaging device 4 and includes a plurality of lens groups including a focus lens for adjusting the focal position of the optical system.

  The mirror unit 3 is disposed on the exit side of the photographing lens 2 and includes a main mirror 3a and a sub mirror 3b. The main mirror 3 a is a mirror that reflects the light that has passed through the photographing lens 2 toward the viewfinder unit 5. A part of the main mirror 3a is a half mirror, and part of the light is transmitted. Further, when the release button 9 is pressed at the time of shooting, the main mirror 3a rotates around an unillustrated axis provided at the end thereof, and the reflection surface is at a position substantially parallel to the optical axis A. This is a so-called quick return mirror. The sub mirror 3b is a mirror that bends the path of the light transmitted through the half mirror portion of the main mirror 3a, for example, at 90 ° in the direction opposite to the main mirror 3a and reflects it to the distance measuring unit 6 described later.

  The image sensor 4 is provided at a position where light along the optical axis A reaches when the main mirror 3a is retracted, and converts an image formed by the photographing lens 2 into an electric signal, for example, a CCD (Charge-Coupled Device). Or the like. A shutter unit 12 that controls the exposure time is provided between the mirror unit 3 and the image sensor 4.

  The viewfinder unit 5 receives light directed upward in the figure by the main mirror 3a, and includes a pentaprism 5a and a focusing screen 5b.

  The pentaprism 5a is an optical element that guides the path of light reflected by the main mirror 3a to the eyepiece (eyepiece lens 5c) by bending it. For example, the pentaprism 5a is provided above the mirror unit 3 when the camera 1 is in the normal photographing position. In the present specification, the normal shooting position of the camera refers to the position of the camera when shooting a horizontally long image with the optical axis of the camera body horizontal.

  The distance measuring unit 6 divides the light bent by the sub-mirror 3b into two to generate two images with parallax, and a pair of line sensors 6a that convert the two images into electric signals, respectively. 6b is included.

  The control unit 7 is an information processing unit that comprehensively controls each element constituting the camera 1. The control unit 7 is a ROM 72 a that stores a control program for controlling each unit of the camera 1, and is temporarily used when the control program is executed. A work RAM 72b serving as a storage area, a CPU 72c for controlling each part of the camera 1 in accordance with a control program read from the ROM 72a, and a timer (not shown) for measuring the elapsed time t. The RAM 72b is provided with an operation setting table for storing setting flags such as the AF mode and the release button rotation mode.

  The control unit 7 calculates the defocus amount based on the outputs of the line sensors 6a and 6b provided in the distance measuring unit 6 described above. Then, the focus control unit 13 performs a known phase difference detection type autofocus control, operates the AF motor 15 so that the defocus amount becomes zero, and drives the focus lens.

  Further, the control unit 7 displays the imaging information converted into an electric signal by the imaging element 4 on a liquid crystal display unit 11 such as an LCD. The liquid crystal display unit 11 is provided on the back of the body of the camera 1 and can display a captured image, a through image, a menu screen that can be set under shooting conditions, and the like. Further, a focus point described later is also displayed.

  The release button 9 is a push button switch that is provided on the upper surface of the body of the camera 1 and operates the shutter 12. The release button 9 is displaced to a half-pressed state or a fully-pressed state according to a pressing operation by the user. .

  The operation unit 10 includes, for example, a function selection switch that is provided on the back of the body of the camera 1 and can be set under shooting conditions. The operation unit can set setting information such as the AF mode and the release button rotation mode in the operation setting table by operating the cursor displayed on the menu screen while the menu screen is displayed on the liquid crystal display unit 11. It is like that. The release button rotation mode is a mode for notifying the user that the in-focus state is obtained by rotating the operation surface 21d of the upper release button 21 during focusing.

  FIG. 2 is a sectional view showing the structure of the release button 9. The release button 9 includes an upper release button 21, a lower release button 22, a power dial 23, an upper cover 24, a switch 25, a motor 26, a gear 27 and a gear 28.

  The upper release button 21 has a plurality of convex protrusions 21a on the operation surface 21d, and can be displaced in conjunction with the operation surface 21d in response to a pressing operation (F) in the y-minus direction by the user. The upper release button 21 has a central shaft 21b that is rotatable about the B-B axis. In the present embodiment, as shown in FIG. 2, the operation surface 21d of the upper release button 21 is configured to have a convex protrusion 21a. However, the present invention is limited to such a case. Instead, the operation surface 21d of the upper release button 21 may be configured to have a concave groove.

  The lower release button 22 abuts on the upper surface 22a facing the bottom surface 21c of the upper release button 21, and the upper surface 22a can be displaced in conjunction with the lower surface 21c of the upper release button 21 being lowered.

  The power dial 23 is a switch for turning on / off the supply of power from a battery (not shown) provided in the camera 1 to the electronic component according to an operation.

  The upper cover 24 is provided on the outer periphery of the operation surface 21 d of the upper release button 21 and plays a role of fixing the release button 9 to the body (not shown) of the camera 1.

  The switch 25 has switch contacts 25a, 25b, and 25c, and sequentially closes the switch contacts 25a, 25b, and 25c according to the displacement of the lower release button 22.

  The switch contact 25a is in contact with the bottom surface 22c of the lower release button 22, and when the lower release button 22 is displaced in the y-minus direction, the switch contacts 25a and 25b come into contact with each other to close the contact. Further, the switch contacts 25b and 25c are brought into contact with each other in accordance with the displacement of the lower release button 22 in the y-minus direction to close the contacts.

  The motor 26 is a motor that rotates about the C-C axis as a rotation shaft 26 a according to an applied voltage, and the rotation of a gear 27 provided on the rotation shaft 26 a is transmitted to the gear 28. The gear 28 is fixed to the central shaft 21b of the upper release button 21, and the upper release button 21 rotates about the B-B axis in accordance with the rotation of the gear 28.

  As described above, since the operation surface 21d of the upper release button 21 is provided with a plurality of protrusions 21a, when the upper release button 21 rotates, the plurality of protrusions 21a are rotated and transmitted to the user. .

FIG. 3 is a side view showing the configuration of the switch 25 provided on the release button 9.
As shown in FIG. 3, the switch contacts 25a, 25b, and 25c have a longitudinal shape in a direction perpendicular to the BB axis, and are provided at the end opposite to the portion that contacts the lower release button 22. The holding portion 25d made of an insulating material is held at a predetermined interval, and the holding portion 25d is fixed inside the camera. Cords 25e, 25f, and 25g are connected to the ends of the switch contacts 25a, 25b, and 25c, respectively, and these cords are connected to the control unit 7 shown in FIG.

  When the lower release button 22 is displaced in the y-minus direction, first, the switch contacts 25a and 25b are brought into contact with each other to close the contacts. Further, the switch contacts 25b and 25c come into contact with each other in accordance with the displacement of the lower release button 22 in the y-minus direction, thereby bringing the contacts into a closed state. At this time, the state of the contact is output to the control unit 7 via the cords 25e, 25f, and 25g.

FIG. 4 is a flowchart for explaining the operation of the control unit 7.
First, when the user turns on the power dial 23 of the camera 1 and the power is turned on to the camera 1, the CPU 7c provided in the control unit 7 is reset. The CPU 7c reads the control program from the ROM 72a, and sequentially Run the program. In step S5, the control unit 7 determines whether or not the power dial 23 has been switched from OFF to ON.

  When the power dial 23 is turned on, in step S10, the control unit 7 starts the time measuring operation by the timer t and measures the time t.

  In step S20, setting information such as the AF mode and the release button rotation mode is acquired from the operation setting table stored in the RAM 7b. The RAM 7b of the control unit 7 includes setting information such as an AF mode and a release button rotation mode as a shooting mode set by the user by operating the operation unit 10 on the setting screen displayed on the liquid crystal display unit 11. It is remembered.

  In step S30, the control unit 7 determines whether or not the AF mode flag is set to ON as the shooting mode in the setting information read from the operation setting table. If the AF mode flag is set to ON, the process proceeds to step S40. On the other hand, if the AF mode flag is set to OFF, the process returns to step S10.

  In step S40, the control unit 7 determines whether or not the release button rotation mode flag is set to ON as the shooting mode in the setting information read from the operation setting table. If the release button rotation mode flag is set to ON, the process proceeds to step S50. On the other hand, if the release button rotation mode flag is set to OFF, the process returns to step S10.

  In step S50, the control unit 7 acquires the switch contact state of the release button 9. That is, the states of the switch contacts 25a, 25b, and 25c inputted through the cords 25e, 25f, and 25g connected to the control unit 7 are acquired. The terminal on the control unit 7 side to which the cord 25e is connected is connected to, for example, GND, and the terminal on the control unit 7 side to which the cords 25f and 25g are connected is connected to, for example, the power supply Vcc via a pull-up resistor. It is connected to the.

  Accordingly, when the upper release button 21 is pushed by the user and the bottom surface 22c of the lower release button 22 reaches the half-pressed position, that is, when the switch contacts 25a and 25b are in a position where they are in contact with each other, the control unit 7 detects the low level as the state of the switch contact 25b and generates a half-press signal.

  Further, when the bottom surface 22c of the lower release button 22 reaches the fully pressed position, that is, when the switch contacts 25a, 25b, and 25c are in contact with each other, the control unit 7 sets the switch contact 25c to a low level. Is detected and a full-press signal is generated.

  In step S60, the control unit 7 determines whether or not the release button 9 is half pressed. That is, when a low level is detected as the state of the switch contact 25b, it is considered that the release button 9 is in a half-pressed state, and the process proceeds to step S70. On the other hand, when the high level is detected as the state of the switch contact 25b, it is considered that the release button 9 is not operated, and the process proceeds to step S120.

  In step S70, the control unit 7 determines whether or not the release button 9 is fully pressed. That is, when a low level is detected as the state of the switch contact 25c, it is considered that the release button 9 is fully pressed, and the process proceeds to step S120. On the other hand, when the high level is detected as the state of the switch contact 25c, it is considered that the release button 9 is half-pressed, and the process proceeds to step S80.

  When the fully-pressed state is detected, the control unit 7 operates the shutter 12 according to parallel processing different from the program shown in this flowchart, and outputs an image signal after photoelectric conversion from the image sensor 4 to display the liquid crystal display. Shooting is performed by controlling to display an image on the unit 11.

  By the way, the control unit 7 provided in the camera 1 executes the following autofocus control processing by parallel processing, separately from the control processing program shown in this flowchart. That is, the control unit 7 determines the relative defocus amount between the two images (the distance from the position equivalent to the imaging surface to the actual imaging surface position) from the outputs of the line sensors 6a and 6b provided in the distance measuring unit 6. ), That is, the defocus amount is calculated. Then, the focus control unit 13 performs a known phase difference detection type autofocus (AF) control, operates the AF motor 15 so that the defocus amount becomes zero, and drives the focus lens. When the defocus amount calculated by the control unit 7 is 0, 1 is set to an in-focus state flag indicating that the in-focus state is obtained, and is stored in the RAM 7b. On the other hand, when the defocus amount is not 0, 0 representing the out-of-focus state is set as the in-focus state flag and stored in the RAM 7b.

  In step S80, the control unit 7 reads and acquires the in-focus state flag from the RAM 7b. Next, in step S90, the control unit 7 determines whether or not the in-focus state is in focus by determining whether or not the in-focus state flag is 1. If the in-focus state flag is 1 and the in-focus state is in focus, the process proceeds to step S100. On the other hand, if the in-focus state flag is 0 and the in-focus state is present, the process proceeds to step S120.

  In step S <b> 100, the control unit 7 turns on the motor 26 provided on the release button 9 to apply a predetermined voltage (power), and drives the motor 26. When the rotating shaft 26a of the motor 26 rotates, as shown in FIG. 2, the gear 27 fixed to the rotating shaft 26a rotates, and the rotation is transmitted to the gear 28 engaged with the gear 27, so that the gear 28 is fixed. As the center shaft 21b is rotated, the operation surface 21d of the upper release button 21 is rotated, and the protrusion 21a provided on the operation surface 21d is rotated in the circumferential direction. The rotation of the surface 21d is transmitted to the user's fingertip.

  While the upper release button 21 is rotating, the bottom surface 21c slides on the upper surface 22a of the lower release button 22 and rotates about the central axis 21b. Therefore, the upper release button 21 is on the xz plane (perpendicular to the bottom surface 21c). Only on a flat surface). Therefore, the rotation of the upper release button 21 is not transmitted to the lower release button 22 provided in the y-axis direction.

  In step S110, the control unit 7 reads the time t counted from the timer, and determines whether or not the elapsed time t exceeds a reference time T that is a preset threshold value. If the elapsed time t does not exceed the reference time T, the process returns to step S50, and the contact state of the switch is acquired again. On the other hand, if the elapsed time t exceeds the reference time T, the process proceeds to step S120. The reference time T may be configured to be arbitrarily set.

  When the process proceeds from step S110 to step S120, the control unit 7 turns off the motor 26 provided in the release button 9, stops the supply of the predetermined voltage (electric power), and stops the driving of the motor 26. When the rotation of the motor 26 is stopped, the rotation of the operation surface 21d of the upper release button 21 is stopped because the rotation of the gear 27, the gear 28, the central shaft 21b, the operation surface 21d of the upper release button 21 and the like is stopped as shown in FIG. The rotation stop is transmitted to the user's fingertip.

  On the other hand, when the process proceeds from step S60, S70, S90 to step S120, the motor 26 is in a stopped state. In this case, the control unit 7 only controls the motor 26 to be turned off.

As described above, the first embodiment has the following effects.
(1) At the time of focusing, it is possible to notify the user that the operating surface of the upper release button is rotated and focused.
(2) The upper release button and the lower release button are separated, and only the center axis of the upper release button is rotated so that rotation is not transmitted from the upper release button to the lower release button. It is possible to prevent the release button from erroneous contact and malfunction during rotation.
(3) When the subject is in focus, the release button having a convex (or concave) on the operation surface rotates, so that the user can be directly notified and recognized by the user. Sometimes it is not necessary to display an in-focus mark on the monitor in the viewfinder or on the back of the camera, and the visibility of the subject can be improved.
(4) When you want to shoot as soon as possible after focusing, rather than pressing the upper release button with your finger after visually recognizing that the subject is in focus, you have focused directly on the fingertip that is pressing the upper release button. It is possible to press the release button faster to transmit the rotation indicating that.

(Second Embodiment)
A second embodiment of the present invention will be described. In the second embodiment of the present invention, in the configuration of the camera 1 shown in FIG. 1, the release button 9 is changed to a release button 51 shown in FIG. Note that among the configurations of the release button 51 according to the second embodiment, the same components as those shown in FIG. 2 are given the same reference numerals, and descriptions thereof are omitted.

  FIG. 5 is a cross-sectional view showing a configuration of a release button 51 provided in the single-lens reflex type camera 1 of the second embodiment. FIG. 6 is a perspective view showing the configuration of the cam 55 and the cam receiving plate 56 provided on the release button 51 of the second embodiment.

  The upper release button 53 has a plurality of protrusions 53a on the operation surface 53d, and can be displaced in conjunction with the operation surface 53d according to a pressing operation (F) in the y-minus direction by the user. The upper release button 21 has a rotation shaft 53b around the B-B axis.

  The lower release button 22 is in contact with the upper surface 22a facing the bottom surface 53c of the upper release button 53, and the upper surface 22a can be displaced in conjunction with the lower surface 53c of the upper release button 53 being lowered. is there.

  The vibration motor 54 is a motor that rotates about the C-C axis as a rotating shaft 54a in accordance with an applied voltage (electric power), and a cam 55 provided on the rotating shaft 54a rotates to contact the cam receiving plate 56 at a constant cycle. Is done. The cam receiving plate 56 is fixed to the rotating shaft 53b of the upper release button 53, and the upper release button 53 vibrates in response to the cam 55 coming into contact with the cam receiving plate 56 at a constant cycle.

  Further, a hole 56b is formed in the end surface 56d of the cam receiving plate 56, and the support shaft 57 is inserted through the hole 56b so as to be displaceable in the y plus / minus direction. The support shaft 57 is fixed to the wall surface 58c of the wall portion 58 below the power dial 23 so as to be displaceable in the y plus / minus direction via support members 58a and 58b.

  When the operation surface 53d of the upper release button 53 is pressed (F) by the user in the y-minus direction, the support shaft 57 supported by the wall surface 58c via the support members 58a and 58b is opened on the cam receiving plate 56. The cam receiving plate 56 can be displaced in the y-minus direction because it is inserted through the hole 56b so as to be displaceable.

  As described above, the operation surface 53d of the upper release button 53 is provided with a plurality of protrusions 53a. Therefore, when the upper release button 53 vibrates, the plurality of protrusions 53a are vibrated and transmitted to the user. .

  As shown in FIG. 6, the rotation shaft 53b of the upper release button 53 is fixed to the cam receiving plate 56, and one end of the cam receiving plate 56 is notched in a U shape. A cam 55 having a uniform width similar to an equilateral triangle is disposed in the notch, and the cam 55 is fixed to the rotating shaft 54 a of the vibration motor 54.

  The rotation of the vibration motor 54 causes the cam 55 to contact the inner peripheral wall 56a of the notch portion of the cam receiving plate 56 at a constant period, and this contact causes the cam receiving plate 56 to vibrate with the support shaft 17 as the rotating shaft. The vibration is transmitted from 56 to the upper release button 53.

  FIG. 7 is a flowchart for explaining the operation of the control unit 7 provided in the single-lens reflex type camera 1 of the second embodiment. In steps S5 to S110, processing similar to that described in the first embodiment is performed.

  In step S <b> 220, the control unit 7 turns on the vibration motor 54 provided on the release button 51 to apply a predetermined voltage (electric power) to drive the vibration motor 54. When the rotating shaft 54a of the vibration motor 54 rotates, as shown in FIG. 5, the cam 55 comes into contact with the inner peripheral wall 56a of the notch portion of the cam receiving plate 56 at a constant period as a result of the rotation of the vibration motor 54. The cam receiving plate 56 is vibrated in the z direction (perpendicular to the xy direction) with the support shaft 17 as a rotation axis, and vibration is transmitted from the cam receiving plate 56 to the upper release button 53. Further, the vibration of the operation surface 53d of the upper release button 53 is transmitted to the user's fingertip.

  Note that while the upper release button 53 vibrates, the bottom surface 53c vibrates by sliding only in the z direction on the upper surface 22a of the lower release button 22, so that the vibration of the upper release button 21 is not transmitted to the lower release button 22.

  When the process proceeds from step S110 to step S210, the control unit 7 controls to turn off the vibration motor 54 provided on the release button 51 to stop the supply of the predetermined voltage (electric power) and stop the rotation of the vibration motor 54. To do. When the rotation of the vibration motor 54 stops, the rotation of the cam 55, the cam receiving plate 56, the rotating shaft 53b, the operation surface 53d of the upper release button 53, etc. stop as shown in FIG. The vibration stop of the operation surface 53d is transmitted to the user's fingertip.

As described above, the second embodiment has the following effects.
(1) At the time of focusing, it is possible to notify the user that the focusing has been performed by applying vibration to the operation surface of the upper release button.
(2) The upper release button and the lower release button are separated so that vibration is applied only to the upper release button and vibration is not transmitted from the upper release button to the lower release button. It is possible to prevent erroneous contact and malfunction of the release button.
(3) When the subject is in focus, the upper release button having a convex (or concave) on the operation surface vibrates so that the user can be directly notified of the in-focus and recognized by the user. Sometimes it is not necessary to display an in-focus mark on the monitor in the viewfinder or on the back of the camera, and the visibility of the subject can be improved.
(4) When you want to shoot as soon as possible after focusing, rather than pressing the upper release button with your finger after visually recognizing that the subject is in focus, you have focused directly on the fingertip that is pressing the upper release button. It is possible to press the release button more quickly when transmitting the vibration indicating that.

<Deformation>
As described above, the present invention is not limited to the first and second embodiments described above, and various modifications and changes as described below are possible, and these are also within the scope of the present invention.
(1) In the first and second embodiments, the upper release button is configured to rotate or vibrate when focus is achieved. However, the present invention is not limited to such a case. The upper release button may be configured to rotate or vibrate when the focus is out of focus.
(2) In the first embodiment, the entire operation surface of the upper release button is configured to rotate. However, the present invention is not limited to such a case. You may divide | segment into a peripheral part and an outer peripheral part, and you may comprise so that any one of an outer peripheral part or an inner peripheral part may rotate.

It is a block diagram which shows the structure of the single-lens reflex type camera 1 of 1st Embodiment. It is sectional drawing which shows the structure of the release button 9 provided in the single-lens reflex type camera 1 of 1st Embodiment. 4 is a side view showing a configuration of a switch 25 provided on the release button 9. FIG. It is a flowchart for demonstrating operation | movement of the control part 7 provided in the single-lens reflex type camera 1 of 1st Embodiment. It is sectional drawing which shows the structure of the release button 51 provided in the single-lens reflex type camera 1 of 2nd Embodiment. It is a perspective view which shows the structure of the cam 55 and the cam receiving plate 56 which were provided in the release button 51 of 2nd Embodiment. It is a flowchart for demonstrating operation | movement of the control part 7 provided in the single-lens reflex type camera 1 of 2nd Embodiment.

Explanation of symbols

  7: Control unit, 9: Release button, 21: Upper release button, 21a: Projection, 22: Lower release button, 25: Switch, 25a: Switch contact, 25b: Switch contact, 25c: Switch contact, 26: Motor, 51: Release button, 53: Upper release button, 53a: Projection, 54: Vibration motor, 55: Cam, 56: Cam receiving plate

Claims (8)

A first release button that has an operation part at one end and an action part at the other end, and is displaced in the predetermined direction by pressing the operation part in a predetermined direction;
A second release button that is in contact with the action portion of the first release button and is displaced in the predetermined direction in conjunction with the displacement of the first release button in the predetermined direction;
A displacement detector for detecting the displacement of the second release button;
A rotation drive unit that rotationally drives the first release button about the central axis of the first release button;
An in-focus state detection unit that detects the in-focus state of the focus optical system of the imaging lens according to the detection result of the displacement detection unit;
And a control unit configured to rotate the first release button by the rotation driving unit according to a detection result of the in-focus state detection unit. A first release button that has an operation part at one end and an action part at the other end, and is displaced in the predetermined direction by pressing the operation part in a predetermined direction;
A second release button that is in contact with the action portion of the first release button and is displaced in the predetermined direction in conjunction with the displacement of the first release button in the predetermined direction;
A displacement detector for detecting the displacement of the second release button;
A vibration drive unit for applying vibration to the first release button;
An in-focus state detection unit that detects the in-focus state of the focus optical system of the imaging lens according to the detection result of the displacement detection unit;
And a control unit that vibrates the first release button by the vibration driving unit in accordance with a detection result of the in-focus state detection unit. The camera according to claim 1 or 2,
The first release button has a projection or a groove on the operation unit. The camera according to claim 1 or 2,
The displacement detector is
A camera that detects a half-pressed state of the first release button based on a displacement of the second release button. The camera according to claim 1,
The controller is
The camera, wherein when the detection result of the in-focus state detection unit is in an in-focus state, the first release button is driven to rotate by the rotation driving unit. The camera according to claim 1,
The controller is
The camera, wherein the first release button is rotationally driven by the rotation driving unit when a detection result of the in-focus state detection unit is an out-of-focus state. The camera according to claim 2,
The controller is
A camera characterized in that the first release button is vibrated by the vibration drive unit when a detection result of the focus state detection unit is a focus state. The camera according to claim 2,
The controller is
A camera characterized in that the first release button is vibrated by the vibration drive unit when a detection result of the in-focus state detection unit is an out-of-focus state.

Images