JP2013042205A - Imaging apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an imaging apparatus comprising an operation member capable of switching between two stages of zooming speeds, thereby realizing a low cost and miniaturization.SOLUTION: A digital camera 1 comprises: a zoom lever 6 disposed so as to be rotatable about an axis orthogonal to the optical axis of a photographic lens; a circuit board 21 disposed so as to be orthogonal to the optical axis; first detection means 22 and second detection means 23 mounted to the circuit board 21 to detect the rotation angle of the zoom lever 6; and a rotation member 14 which rotates with the zoom lever 6 to switch the first detection means 22 and the second detection means 23 between an on state and an off state. A controller 304 switches the zooming speeds on the basis of the on state and the off state of the first detection means 22 and the second detection means 23.

Description

  The present invention relates to an image pickup apparatus such as an optical apparatus, a digital camera, and a video camera provided with a zoom means, and more particularly to an image pickup apparatus having a zoom operation means capable of shifting in two or more steps.

  In recent years, as one of the enhancement of functions in imaging devices represented by so-called digital cameras and digital video cameras, the zoom performance has been improved, that is, the zoom magnification has been increased. As the zoom magnification becomes higher, a speed change mechanism with two or more stages of zoom speed can be used for both high speed zoom operation and delicate adjustment of zoom amount. What is provided with is known. Here, since there is a strong demand for downsizing and cost reduction with respect to the imaging apparatus, it is necessary to achieve demands for downsizing and cost reduction while mounting a zoom speed shifting mechanism.

  Various types of zoom operation means in the image pickup apparatus are known. For example, in a zoom operation method using a rotation operation member that can be operated intuitively by a photographer, a detection switch that detects a rotation angle of the rotation operation member is used. When adjusting a two-stage zoom speed using a detection switch, a method using a low-speed operation switch and a high-speed operation switch that switch according to the rotation angle of a rotary operation member is known (see Patent Document 1). . On the other hand, as a method that does not use the detection switch, a code pattern is formed on the circuit board by wiring, and the rotation angle of the rotating operation member is detected by the conductive brush coming into contact with the code pattern. And a method for switching between high-speed zoom control is known.

JP 2008-186651 A

  However, in the technique described in Patent Document 1 described above, since a large number of detection switches are used, the component cost is high, and the area of the circuit board on which the detection switches are mounted becomes large, so that downsizing becomes difficult. On the other hand, in the method using the code pattern and the conductive brush without using the detection switch, the area of the circuit board is increased to form the code pattern, and it is necessary to perform a gold plating process on the code pattern or the conductive brush. This increases the part cost.

  An object of the present invention is to provide an imaging apparatus that includes an operation member capable of switching zoom speeds in two steps and realizes downsizing at low cost.

  An image pickup apparatus according to the present invention is an image pickup apparatus having an operation member arranged to be rotatable around an axis orthogonal to an optical axis of a photographing lens, and is a circuit arranged to be orthogonal to the optical axis. A first detection means and a second detection means which are mounted on the circuit board and detect the rotation angle of the operation member; and the first detection means and the second detection means by rotating together with the operation member. A rotating member that switches between an on state and an off state of the detecting unit, and a control unit that switches the zoom speed based on the on state and the off state of the first detecting unit and the second detecting unit. Features.

  According to the present invention, it is possible to reduce the number of circuit boards arranged on the upper surface of the imaging apparatus, and it is possible to realize a zoom operation that switches the zoom speed in two steps with a small number of components. Thereby, the cost reduction and size reduction of an imaging device are realizable.

1 is a perspective view illustrating an appearance of a digital camera according to an embodiment of the present invention. FIG. 2 is an exploded view showing a configuration of an upper unit including a zoom lever in the digital camera of FIG. 1. FIG. 2 is a cross-sectional view illustrating a structure of a zoom lever and its vicinity in the digital camera of FIG. 1. It is a front view which shows the upper unit and circuit board which comprise the digital camera of FIG. It is a figure which shows the positional relationship and operation | movement aspect of a rotary plate, a 1st detection means, and a 2nd detection means in the digital camera of FIG. 2 is a flowchart illustrating two-step switching control of zoom speed by a rotation angle of a zoom lever in the digital camera of FIG. 1. It is a block diagram which shows the control system of the digital camera of FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Here, a so-called compact type digital camera is taken as an example of the imaging apparatus. However, the present invention is not limited to such an embodiment.

<Appearance structure of digital camera>
FIG. 1 is a perspective view showing an appearance of a digital camera according to an embodiment of the present invention. The cover that covers the main body (not shown) of the digital camera 1 includes a front exterior cover 2 that constitutes a subject-side surface (front surface) and an upper surface, and a rear exterior cover 3 that constitutes a photographer-side surface (rear surface). Have.

  A lens barrel 7 containing a photographing lens (not shown) is disposed on the front surface of the digital camera 1. On the upper part of the digital camera 1, members for performing various operations such as a release button 4 for instructing start of focusing and start of shooting and a power button 5 for switching on / off the power of the digital camera 1 are arranged. The release button 4 has a two-stage switch structure that detects an operation in two stages according to the pushing amount with respect to the pushing direction.

  On the upper surface of the digital camera 1, a zoom lever 6, which is an operation member for a photographer to adjust the angle of view of a captured image, that is, to perform a zoom operation, is disposed. It can be rotated around an orthogonal rotation axis. A control unit 304 (see FIG. 7), which will be described later, detects an operation amount (rotation angle) of the rotation operation of the zoom lever 6, and in accordance with the detected operation amount, the photographing lens included in the lens barrel 7 is detected in the optical axis direction. Perform zoom control to advance and retreat.

  In addition, a mode switch 8 used for switching the shooting mode is provided at the top of the digital camera 1, and still image shooting and moving image shooting are switched by a slide operation of the mode switch 8. It is desirable that the release button 4 and the zoom lever 6 are arranged on the top of the digital camera 1 so that the photographer (operator) can easily operate with the index finger when holding the digital camera 1.

<Zoom lever and its nearby structure>
FIG. 2 is an exploded view showing the configuration of the upper unit including the zoom lever 6 in the digital camera 1, and FIG. 3 is a cross-sectional view showing the structure of the zoom lever 6 and the vicinity thereof.

  The support member 10 constituting the upper unit 9 is provided with a hole portion 11 through which a shaft portion (rotating shaft) of the zoom lever 6 is rotatably inserted. A through hole 17 is provided in the shaft portion of the zoom lever 6, and a shaft member 4 c of the release button 4 constituted by a decorative cap 4 a and a button body 4 b is inserted into the through hole 17. When the release button 4 is assembled to the zoom lever 6, the coil spring 18 is inserted between the release button 4 and the zoom lever 6, and the claw portion 4d extending from the button body 4b of the release button 4 is the zoom lever. 6 is fixed.

  With such a configuration, the release button 4 is pushed upward by the repulsive force of the coil spring 18, and the claw portion 4 d of the release button 4 is fixed to the zoom lever 6, thereby preventing the release button 4 from coming off. When the photographer presses the release button 4, the release button 4 is pushed downward, and when the force to press the release button 4 is removed, the release button 4 is pushed upward and held at a predetermined position.

  The support member 10 is provided with an arc-shaped hole (hereinafter referred to as “arc-shaped hole”) 13 through which the boss 12 of the zoom lever 6 is inserted, and a zoom is formed at the end of the arc-shaped hole 13. The rotation of the zoom lever 6 is restricted when the boss 12 of the lever 6 hits. Further, the boss 12 of the zoom lever 6 inserted through the arcuate hole 13 is fixed to the plate-like rotating member 14 with a screw 15. Therefore, the rotation member 14 rotates by the same angle as the zoom lever 6 together with the zoom lever 6 with the rotation axis of the zoom lever 6 as the rotation axis.

  Similar to the support member 10, the rotating member 14 is provided with a hole 16 through which the shaft portion of the zoom lever 6 is inserted. The rotary member 14 is provided with a spring hook portion 19, and the spring hook portion 19 is bent at a substantially right angle with respect to the rotation surface of the rotary member 14. A coil spring 20 having a circular portion 20a and two arm portions 20b extending from the circular portion 20a is inserted into a boss (not shown) of the support member 10, and a screw is fitted into the boss. These are fixed to the support member 10. At this time, the coil spring 20 is disposed so that the arm portion 20b abuts on another convex portion (not shown) provided on the support member 10 and the spring hooking portion 19 of the rotating member 14 is sandwiched.

  When the rotating member 14 is rotated by the rotation operation of the zoom lever 6, the arm portion 20b of the coil spring 20 in contact with the spring hooking portion 19 provided on the rotating member 14 is deformed. The deformation of the arm portion 20b becomes a restoring force with respect to the rotation operation of the zoom lever 6. That is, the coil spring 20 functions as an urging member for the zoom lever 6, and when the photographer removes the rotational force that is the operation force applied to the zoom lever 6, the zoom lever 6 stops by the restoring force generated by the coil spring 20. Return to position.

<Arrangement of circuit board>
FIG. 4 is a front view showing the upper unit 9 and the circuit board constituting the digital camera 1. The circuit board 21 is arranged so as to be orthogonal to the optical axis so that the board area can be as large as possible. Various electronic components that perform operation control of the digital camera 1, imaging signal processing, and the like are mounted on the circuit board 21.

  In particular, in the present embodiment, the circuit board 21 is provided with first detection means 22 and second detection means 23 that detect the rotation operation of the zoom lever 6. The mounting form and operation form of the first detection unit 22 and the second detection unit 23 on the circuit board 21 will be described in detail later.

  The detection switch 24 that detects the pressing operation of the release button 4 is mounted on the circuit board 21 so as to detect the two-step pressing amount in a direction parallel to the board surface of the circuit board 21. A plurality of flexible boards (not shown) are electrically connected to the circuit board 21. Examples of the flexible substrate include those equipped with switches for detecting that a photographer has operated various operation members arranged on the back surface of the digital camera 1, or an image sensor mounted and between the circuit substrate 21. One that exchanges imaging signals is mentioned. As another flexible substrate, a motor for driving a zoom lens for changing a captured image and a focus lens for focus adjustment to a desired position and detection sensors for various kinds of operation control are provided to the circuit substrate 21. And those that are electrically connected.

<Details of mechanism for detecting rotation of zoom lever>
FIG. 5 is a diagram showing a positional relationship and operation modes of the rotating member 14, the first detection means 22, and the second detection means 23, and a schematic diagram (i) for each of FIGS. ), A top view (ii), and a side view (iii) are shown. Since the correspondence between the configuration shown in FIG. 5A and the configuration shown in FIGS. 5B and 5C is clear, the reference numerals are omitted in FIGS. 5B and 5C. doing.

  In this embodiment, as the first detection unit 22 and the second detection unit 23, a photo interrupter having a structure in which a light emitting unit and a light receiving unit are spaced apart from each other at a constant interval is used. The first detection unit 22 and the second detection unit 23 are not limited to photo interrupters, and other switches, photo reflectors, and the like may be used.

  The first detection means 22 and the second detection means 23 are disposed at positions symmetrical with respect to an axis that passes through the rotation center of the zoom lever 6 and is parallel to the optical axis. As shown in FIGS. 5A to 5C, the rotating member 14 is disposed between the light emitting unit and the light receiving unit (detection points 28 and 29) in the photo interrupter. Then, according to the structure of the rotating member 14 and the rotating operation, the transmission / light shielding of the light in the optical path connecting the light emitting unit and the light receiving unit is switched to turn on / off each of the first detection unit 22 and the second detection unit 23. Switch off. In the present embodiment, the first detection means 22 and the second detection means 23 are assumed to be in an off state in a state where light is transmitted through each optical path, and are turned on in a state where the light is blocked in each optical path. Suppose that it is in a state.

  As shown in (i) of FIGS. 5A to 5C, the rotating member 14 is provided with two notches 25, and the rotating member 14 rotates with each notch 25. The first wing part 26 and the second wing part 27 are defined by a line connected to the center.

As shown in FIG. 5A (i), a line L1 connecting the detection point 28 of the first detection means 22 and the rotation center of the rotation member 14, and a notch on the first detection means 22 side. An angle formed by the side 26 a of the first wing portion 26 facing 25 is defined as “θ ₁ ”. Note that the line L2 connecting the detection point 29 of the second detection means 23 and the rotation center of the rotating member 14 and the side of the first wing part 26 facing the notch 25 on the second detection means 23 side. The angle formed with 26b is also “θ ₁ ”.

A line L1 connecting the detection point 28 of the first detection means 22 and the rotation center of the rotation member 14, and a side 27a of the second wing part 27 facing the notch 25 on the first detection means 22 side Is defined as “θ ₂ ”. It should be noted that a line L2 connecting the detection point 29 of the second detection means 23 and the rotation center of the rotating member 14 and the side of the second wing part 27 facing the notch 25 on the second detection means 23 side. The angle formed by 27b is also “θ ₂ ”.

In the present embodiment, a relationship of “θ ₂ > θ ₁ ” is established between these angles θ ₁ and θ ₂ . The size of the notch 25 of the rotating member 14 is a size that avoids the first detecting means 22 and the second detecting means 23 when projected in parallel to the rotation axis of the rotating member 14. (See (i) in FIGS. 5A to 5C). Thus, when the upper unit 9 is assembled from above the digital camera 1 with the circuit board 21 assembled to the digital camera 1, the rotating member 14, the first detection means 22, and the second detection means 23 are Interference can be prevented.

  As shown in (iii) of FIGS. 5A to 5C, the circuit board 21 has a slit 30 for avoiding interference between the rotating member 14 and the circuit board 21 when the rotating member 14 rotates. Is provided. The first detection means 22 is mounted on the circuit board 21 so as to be positioned at one end of the slit 30. The second detection means 23 is mounted on the circuit board 21 so as to be positioned at the other end of the slit 30. When the photographer rotates the zoom lever 6 by a predetermined angle, the first wing part 26 and the second wing part 27 of the rotating member 14 have the slit 30 of the circuit board 21, the first detection unit 22, and the like. It passes through the gaps (optical paths) of the second detection means 23 without interference (contact).

Next, a mechanism for detecting the rotation operation of the zoom lever 6 by the photographer in two steps according to the operation angle will be described. As shown in FIG. 5 (B), when the zoom lever 6 is rotated clockwise (first direction) from the stop position shown in FIG. 5 (A) by the angle θ ₁ as the first rotation angle, the rotating member The side 26a of the 14 first wings 26 reaches the detection point 28 of the first detection means 22, and the optical path of the first detection means 22 is blocked. As a result, the first detection means 22 changes from the off state to the on state. In this state, since the side 27b of the second wing part 27 has not reached the detection point 29 of the second detection means 23, the optical path of the second detection means 23 is not blocked, and the second The detection means 23 remains off. Therefore, only the first detection means 22 has detected the rotation of the rotating member 14.

Next, as shown in FIG. 5C, when the zoom lever 6 is rotated by the angle θ ₂ as the second rotation angle clockwise from the stop position shown in FIG. The side 27b of the second wing portion 27 reaches the detection point 29 of the second detection means 23, and the optical path of the second detection means 23 is blocked. As a result, the second detection means 23 changes from the off state to the on state. At this time, since the side 26a of the first wing part 26 is rotated more clockwise than the state shown in FIG. 5B, the optical path of the first detection means 22 is also blocked by the first wing part 26. It has been. Therefore, both the first detection means 22 and the second detection means 23 have detected the rotating member 14.

The case where the zoom lever 6 is rotated counterclockwise (second direction) opposite to the clockwise direction is the same as the case where the zoom lever 6 is rotated clockwise. In other words, when the zoom lever 6 is rotated counterclockwise by the angle θ ₁ from the stop position shown in FIG. 5A, the side 26 b of the first wing portion 26 of the rotating member 14 becomes the second detecting means 23. The detection point is reached and the optical path of the second detection means 23 is blocked. As a result, the second detection means 23 changes from the off state to the on state. At this time, since the side 27a of the second wing part 27 does not reach the detection point 28 of the first detection means 22, the optical path of the first detection means 22 is not blocked, and the first detection means 22 is not blocked. Remains off. Therefore, only the second detection means 23 has detected the rotating member 14.

When the zoom lever 6 is rotated counterclockwise by the angle θ ₂ from the stop position shown in FIG. 5A, the side 27 a of the second wing portion 27 of the rotating member 14 is detected by the first detection means 22. A point is reached and the optical path of the first detection means 22 is blocked. As a result, the first detection means 22 changes from the off state to the on state. At this time, since the side 26b of the first wing part 26 rotates counterclockwise, the optical path of the second detection means 23 is also blocked by the first wing part 26. Therefore, both the second detection means 23 and the first detection means 22 have detected the rotating member 14.

  As described above, the zoom speed can be obtained by using the configuration in which the rotation member 14 switches the on / off state of the first detection unit 22 and the second detection unit 23 according to the difference in the rotation angle of the zoom lever 6. The two-stage switching control is performed.

<Zoom speed switching control flow>
FIG. 6 is a flowchart showing the zoom speed two-stage switching control based on the rotation angle of the zoom lever 6. FIG. 7 is a block diagram showing a control system of the digital camera 1, that is, a block diagram of a control system for performing the control shown in the flowchart of FIG.

  As illustrated in FIG. 7, the digital camera 1 includes a photographing unit 301, an image processing unit 302, a recording unit 303, a control unit 304, an operation unit 305, and a display unit 306. The photographing unit 301 includes a photographing lens, a lens barrel 7 that holds the photographing lens, an image sensor that photoelectrically converts a subject image formed by the photographing lens, a driving circuit for the image sensor, and an analog image signal output from the image sensor. An A / D converter or the like for converting the signal into a digital image signal is included. The image processing unit 302 performs image processing on the digital image signal output from the photographing unit 301.

  The control unit 304 includes a control circuit that performs overall control of the digital camera 1 and includes a CPU, a ROM, a RAM, and the like. The recording unit 303 performs processing for recording the digital image signal subjected to image processing by the image processing unit 302 on a recording medium (not shown). The operation unit 305 includes operation keys such as buttons for the photographer to operate the digital camera 1, and the zoom lever 6 is also included in the operation unit 305. When the operation of the zoom lever 6 is detected by the control unit 304, the control unit 304 performs zoom control for driving the lens barrel 7 included in the photographing unit 301. A display unit 306 has an LCD or the like, and displays a reproduction of a captured image, a menu screen, and the like. Note that a touch panel function can be added to the LCD or the like included in the display portion 306 so as to function as the operation portion 305.

  The zoom speed switching control shown in the flowchart of FIG. 6 is executed by the CPU included in the control unit 304 expanding and executing a program stored in the ROM in the work area of the RAM. In the present embodiment, when the zoom lever 6 is rotated clockwise, the zoom operation of the lens barrel 7 is performed from the wide angle side to the telephoto side, and when the zoom lever 6 is rotated counterclockwise, the wide angle side from the telephoto side is performed. It is assumed that the zoom operation of the lens barrel 7 is performed.

  First, the control unit 304 determines whether the digital camera 1 (lens barrel 7) is performing a zoom operation (step S201). The determination in step S201 can be made based on the actual zoom operation of the lens barrel 7 being executed in the photographing unit 301.

When the zoom operation is not being performed (S201: NO), the control unit 304 determines whether or not the first detection unit 22 is turned on (step S202). The time when the first detection means 22 is turned on in step S202 is when the first wing portion 26 of the rotating member 14 blocks the optical path of the first detection means 22 as already described. Further, when the first detecting means 22 is turned on in the step S202, because it is not during zooming, the zoom lever 6 is the angle theta ₁ or more angle theta less than ₂ clockwise (first rotation angle or more, the second The rotation angle is less than the rotation angle.

  Therefore, when the first detection unit 22 is turned on (S202: YES), the control unit 304 performs control to zoom the photographing lens from the wide angle side to the telephoto side at the first speed (step S203), and then The process returns to step S201 (return).

When the first detection unit 22 is not turned on (S202: NO), the control unit 304 determines whether the second detection unit 23 is turned on (step S204). The time when the second detection means 23 is turned on in step S204 is when the first wing portion 26 of the rotating member 14 blocks the optical path of the second detection means 23 as already described. Further, when the second detection means 23 is turned on in the step S204, because it is not during zooming, the zoom lever 6 is when rotated by an angle theta ₁ or more angle theta less than ₂ counterclockwise.

  Therefore, when the second detection unit 23 is turned on (S204: YES), the control unit 304 performs control to zoom the photographing lens from the telephoto side to the wide angle side at the first speed (step S205). The process returns to step S201 (return). If the second detection unit 23 is not turned on (S204: NO), the zoom lever 6 has not moved from the stop position, and the control unit 304 returns the process to step S201 (return).

  When it is determined in step S201 that the zoom operation is being performed (S201: YES), the control unit 304 determines whether the zoom operation being performed is an operation from the wide-angle side to the telephoto side (step S206). The determination in step S206 can be made based on the actual zooming operation of the photographic lens being executed in the photographic unit 301. When the zoom operation is from the wide-angle side to the telephoto side (S206: YES), the control unit 304 determines whether or not the first detection unit 22 is on (step S207).

In step S207 in the case no first detecting means 22 is in the ON state, once a case where the zoom lever 6 rotated an angle theta ₁ or more in the clockwise direction is returned to less than the angle theta _1. Therefore, when the first detection unit 22 is not in the ON state (S207: NO), the control unit 304 stops the zoom operation (step S208), and then returns the process to step S201 (return). On the other hand, when the 1st detection means 22 is an ON state (S207: YES), the control part 304 determines whether the 2nd detection means 23 is an ON state (step S208).

In step S209 if it is not that (in the OFF state) and the second detection means 23 is turned on, a case where the rotation angle of the zoom lever 6 is maintained at ₁ or more θ less than ₂ angle θ clockwise. Therefore, when the second detection unit 23 is not in the ON state (S209: NO), the control unit 304 performs the zoom operation from the wide angle side to the telephoto side at the first speed, and returns the process to step S201.

In the case where the second detection unit 23 is in the on state in step S209, the zoom angle of the zoom lever 6 is the angle θ _{2 in the} clockwise direction when the zoom operation from the wide angle side to the telephoto side is being controlled. This is the case (more than the second rotation angle). Therefore, when the second detection unit 23 is in the on state (S209: YES), the control unit 304 performs the zoom operation of the photographing lens from the wide angle side to the telephoto side at a second speed higher than the first speed. (Step S210), and then the process returns to step S201.

If the control unit 304 determines that the zoom operation being performed in step S206 is not control from the wide-angle side to the telephoto side (that is, control from the wide-angle side) (S206: NO), the second detection unit 23 Is determined to be on (step S211). The case where the second detection means 23 is not in the on state is a case where the zoom lever 6 that has once rotated counterclockwise by the angle θ ₁ or more is returned to less than the angle θ ₁ . Therefore, when the second detection unit 23 is not in the ON state (S211: NO), the control unit 304 stops the zoom operation (step S212), and then returns the process to step S201 (return). On the other hand, when the 2nd detection means 23 is an ON state (S211: YES), the control part 304 determines whether the 1st detection means 22 is an ON state (step S213).

In step S213 in the case no first detection means 22 is turned on, a case where the rotation angle of the zoom lever 6 is maintained at an angle theta ₁ or theta less than ₂ counterclockwise. Therefore, when the first detection unit 22 is not in the ON state (S213: NO), the control unit 304 performs the zoom operation from the telephoto side to the wide angle side at the first speed, and returns the process to step S201.

The case where the first detection means 22 is in the on state in step S213 means that the rotation angle of the zoom lever 6 is counterclockwise when the zoom operation from the telephoto side to the wide angle side is being controlled. _This is a case of ₂ or more. Therefore, when the first detection unit 22 is in the on state (S213: YES), the control unit 304 performs zoom control of the photographing lens from the telephoto side to the wide angle side at a second speed higher than the first speed. (Step S214), and then the process returns to Step S201.

  As described above, in this embodiment, the five positions including the stop position of the zoom lever 6 can be grasped only by the two detection means, the first detection means 22 and the second detection means 23. Further, by mounting the first detection unit 22 and the second detection unit 23 on the circuit board 21 disposed in front of the digital camera 1 so as to be orthogonal to the optical axis, an extra circuit is provided on the upper surface of the digital camera 1. Substrate can be reduced. In this way, it is possible to reduce the size of the digital camera 1 and at the same time reduce the product cost (suppress the increase in product cost).

  Further, by detecting the position of the zoom lever 6 by the first detection means 22 and the second detection means 23, zoom control to the telephoto side or wide angle side at the first speed, and at the second speed. Zoom control to the telephoto side or wide angle side and stop control of the zoom operation can be performed. At this time, by setting the second speed to a speed higher than the first speed, the photographer wants to immediately zoom to the telephoto side or the wide-angle side, and wants to finely adjust the zoom amount. It is possible to balance the demands of the photographer.

<Other embodiments>
Although the present invention has been described in detail based on preferred embodiments thereof, the present invention is not limited to these specific embodiments, and various forms within the scope of the present invention are also included in the present invention. included. Furthermore, each embodiment mentioned above shows only one embodiment of this invention, and it is also possible to combine each embodiment suitably.

  For example, in the present embodiment, the digital camera has been described. However, if the electronic device has a configuration in which levers that are operated in different directions are provided and different signals are output according to the amount of operation of the levers, the same applies. Can be applied.

DESCRIPTION OF SYMBOLS 1 Digital camera main body 6 Zoom lever 14 Rotating member 20 Coil spring 21 Circuit board 22 1st detection means 23 2nd detection means 25 Notch part 26 1st wing part 27 2nd wing part 30 Slit 301 Image pick-up part 304 Control Part

Claims (7)

An imaging apparatus having an operation member arranged rotatably about an axis orthogonal to the optical axis of the photographing lens,
A circuit board arranged to be orthogonal to the optical axis;
First detection means and second detection means mounted on the circuit board for detecting a rotation angle of the operation member;
A rotating member that switches between an on state and an off state of the first detection unit and the second detection unit by rotating together with the operation member;
An imaging apparatus comprising: control means for switching a zoom speed based on an on state and an off state of the first detection means and the second detection means.   The circuit board is formed with a slit in which the rotating member is disposed, the first detection means is mounted on the circuit board so as to be positioned at one end of the slit, and the second detection means is the slit. The imaging apparatus according to claim 1, wherein the imaging apparatus is mounted on the circuit board so as to be positioned at the other end of the imaging circuit.   The imaging apparatus according to claim 1, wherein the first detection unit and the second detection unit are a photo interrupter or a photo reflector.   The first detection means and the second detection means are turned on when the optical path of the photo interrupter or the photo reflector, which is the optical path of the first detection means and the second detection means, is blocked by the rotating member. The imaging apparatus according to claim 3, wherein the imaging apparatus is turned off when the optical path is not blocked by the rotating member. A biasing member that holds the operating member at a stop position in a state in which no operating force is applied to the operating member;
The rotating member has notches provided at two locations, and a first wing and a second wing defined by a line connecting the notch and the rotation center of the rotating member. And
When the operation member is in the stop position, the first detection means and the second detection means are in an off state by the notch,
When the rotation member rotates from the stop position in the first direction by a first rotation angle, the second detection unit remains in an off state, and the first detection unit is moved by the first wing portion. When the rotation member is turned on and the rotation member rotates in the first direction from the stop position by a second rotation angle larger than the first rotation angle, the first detection unit detects the first wing. And the second detection means is turned on by the second wing part,
When the rotating member rotates from the stop position in the second direction opposite to the first direction by the first rotation angle, the first detection means remains in the off state, The detecting means is turned on by the first wing portion, and when the rotating member is rotated by the second rotation angle in the second direction from the stop position, the second detecting means is 5. The imaging apparatus according to claim 4, wherein the first wing part is turned on, and the first detection unit is turned on by the second wing part.   The control means performs a zoom operation from the wide-angle side to the telephoto side when the rotating member is rotated in the first direction by operating the operating member, and rotates the rotating member in the second direction. 6. The image pickup apparatus according to claim 5, wherein a zooming operation from the telephoto side to the wide angle side is performed when the zoom lens is operated.   The zoom speed when the rotation angle of the rotating member is greater than or equal to the first rotation angle and less than the second rotation angle is slower than the zoom speed when the rotation angle is greater than or equal to the second rotation angle. The imaging device according to claim 5 or 6.

Images