JP2015075531A - Moving body drive device and imaging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a moving body drive device that reduces the number of components, and enables a correct location of a moving body.SOLUTION: In a digital camera 100, upon moving a light emission part 20 from a reception location to a light emission location by a drive part 30, a brush contat piece 26b moving with the light emission part 20 urges the light emission 20 to a reception location side before the light emission part 20 passes through a first location, and urges the light emission part 20 to a light emission location side after the light emission part 20 passes through the first location and further after the light emission part 20 passes through a second location. In a surface where the brush contact piece 26b slides when the light emission part 20 moves, a conductive contact piece 47b is provided so that a signal A is generated before the light emission part 20 passes through the first location, and a conductive contact piece 47c is provided so that a signal B is generated after the light emission part 20 passes through the second location. Between before the light emission part 20 passes through the second location and after the light mission part 20 passes through the first location, a signal is configured not to be generated.

Description

  The present invention relates to a moving body driving apparatus and an imaging apparatus.

  In the moving body drive device that drives the moving body, the moving body is controlled to be stopped by detecting the position where the moving body is moving with a position detection switch or the like. For example, Patent Document 1 describes a camera in which a strobe light emitting unit that is a moving body is driven by a motor, and stop control and position detection are performed by two detection units. In this camera, a photo interrupter and a pop-up position detection switch are used as two detection means, and the strobe light emitting unit is attached to the driving direction end (both ends) with a toggle spring so that the strobe light emitting unit does not stop halfway. It is fast.

JP 2011-39456 A

  However, the technique described in Patent Document 1 uses a photo interrupter, a pop-up position detection switch, a toggle spring, and a screw for fastening the toggle spring for stop control and position detection. Therefore, there are problems that the number of parts is increased and cost is increased because expensive parts such as a photo interrupter are used.

  To solve this problem, a flexible substrate and brush are used, and the sliding surface of the brush contact piece is inclined near the drive direction end of the strobe light emitting unit, and the brush contact piece is biased toward the drive direction end like a toggle spring. It is conceivable to adopt a configuration that allows As a result, the number of parts can be reduced and the cost of electrical parts can be reduced.

  However, in such a configuration, noise occurs when the brush contact piece floats (chattering) before and after the sliding surface of the brush contact piece reaches the slope, thereby indicating the exact position of the strobe light emitting unit. There is a problem that an accurate signal cannot be obtained.

  It is an object of the present invention to provide a moving body drive device that can reduce the number of parts and detect the accurate position of a moving body.

  The moving body driving apparatus according to the present invention includes a driving unit that drives the moving body from the driving start position to the driving end position, and the moving body that moves from the driving start position to the driving end position has passed the first position. A moving body drive device comprising: detecting means for detecting that the moving body has passed the second position after detecting that the moving body has passed the first position, The detecting means biases the moving body toward the driving start position before the moving body passes the first position, and moves the moving body after the moving body passes the second position. An urging means for urging the body toward the driving end position; and a first signal is generated before the moving body passes through the first position, and the moving body passes through the first position. Before the second position is passed and no signal is generated. After the moving object has passed through the second position is characterized by having a signal generating means for generating a second signal.

  In the present invention, a brush and a flexible substrate are used for detecting the position of the moving body and urging it toward the end in the driving direction. Thereby, the number of parts can be reduced as compared with the conventional configuration, and the cost can be reduced. Further, in the present invention, the area where the brush contact piece slides on the flexible substrate has a configuration in which a flat sliding surface is provided between the inclined sliding surfaces, and the conductive contact piece is divided into the inclined sliding surface and the flat sliding surface. The flat sliding surface is made non-conductive so as not to cross over the flat sliding surface. This prevents chattering before and after the sliding of the brush contact piece is switched between the conductive contact piece on the inclined sliding surface and the non-conductive flat sliding surface. Can be detected.

It is a front view which shows the external appearance of a digital camera provided with the strobe light-emitting device which concerns on embodiment of this invention. 1 is an exploded perspective view of a strobe light emitting device according to an embodiment of the present invention. FIG. 3 is a perspective view showing a positional relationship between a light emitting unit and a part of a driving unit in the strobe light emitting device of FIG. 2. FIG. 3 is a perspective view showing a state where the light emitting unit is raised and lowered with respect to the outer cover in the strobe light emitting device of FIG. 2. FIG. 3 is a partial perspective view showing a state where a flexible substrate is attached to an outer cover in the strobe light emitting device of FIG. 2. 3 is a cross-sectional view including a conductive contact piece of a flexible substrate bonded to an outer cover and a region without the conductive contact piece in the strobe light emitting device of FIG. 2. It is a flowchart which shows the operation control process of the flash light-emitting device of FIG. 3 is a timing chart when the light emitting unit of the strobe light emitting device of FIG. 2 is moved between a storage position and a light emitting position.

  Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Here, as a moving body according to the present invention, a strobe light emitting unit provided in a compact digital camera which is an example of an imaging apparatus is taken up. However, the present invention is not limited to this.

  FIG. 1 is a front view showing an external appearance of a digital camera including a strobe driving device according to an embodiment of the present invention. The digital camera 100 includes an exterior member 11 that covers a camera body (not shown), a lens barrel 12, a release button 13, and a strobe light emitting device (flash light emitting device) 14. The camera body inside the exterior member 11 is equipped with an image sensor such as a CCD sensor or a CMOS sensor.

  When the release button 13 is pressed, shooting is performed. Briefly, a light beam that has passed through a lens group (not shown) disposed inside the lens barrel 12 forms an image on the image sensor, and a predetermined process is performed on an electrical signal output from the image sensor. Image data is created and stored in storage means (not shown). At this time, at night or in a dark place, the light emitting unit 20 of the strobe light emitting device 14 emits a flash to assist the photographing automatically or according to the operation of the photographer.

  The light emitting unit 20 is normally housed inside the exterior member 11 and is configured to be exposed to the outside of the exterior member 11 and perform flash emission as necessary. Specifically, the light emitting unit 20 is movable in the direction of arrow A shown in FIG. Hereinafter, the arrow A direction is assumed to be the vertical direction.

  FIG. 1 shows a state in which the light emitting unit 20 of the strobe light emitting device 14 is exposed to the outside of the exterior member 11 (a state in which the light emitting unit 20 is in the light emitting position). Although not shown, when the light emitting unit 20 is accommodated in the exterior member 11, the upper surface of the light emitting unit 20 and the upper surface of the digital camera 100 coincide with each other (the light emitting unit 20 is in the accommodated position). .

  FIG. 2 is an exploded perspective view of the strobe light emitting device 14. The strobe light emitting device 14 is incorporated in the exterior member 11 (camera body) as one unit in which a plurality of components are assembled. The light emitting unit 20 includes a xenon tube 21, a reflective shade 22, a prism panel 23, a base member 24, and a cover member 25. The xenon tube 21 that is a light emission source is electrically connected to the anode and the cathode by lead wires 44 and 46, and is connected to a hard substrate 45 and a capacitor 42 that are circuit boards disposed in the camera body. Xenon tube rubber 21 a is disposed on both sides of the xenon tube 21, and the xenon tube rubber 21 a has a function of insulating the terminal portion of the xenon tube 21 and urging the xenon tube 21 to the reflecting shade 22.

  The reflection shade 22 collects the light from the xenon tube 21 and irradiates the collected light toward the subject at a certain angle. The prism panel 23 has an entrance surface and an exit surface for irradiating light from the xenon tube 21 and the reflection shade 22 within a desired imaging range. The base member 24 has a space for incorporating light-emitting related parts such as the xenon tube 21, the reflection shade 22, and the prism panel 23, and the upper surface thereof constitutes the appearance of the digital camera 100. A rack gear 24 a that meshes with a later-described fifth gear 38 is integrally formed below the base member 24. Further, in the base member 24, a brush 26 is fixed (adhered) to the lower side of the rack gear 24a by heat caulking.

  In assembling the light emitting unit 20, first, light emitting related parts such as the xenon tube 21, the reflective shade 22, and the prism panel 23 are assembled in the base member 24, and the cover member 25 is fitted to the base member 24. Subsequently, the base member 24 and the cover member 25 are fixed using the hook portions 25 a and the screws 27 provided on the cover member 25. Thereby, the unitized light emission part 20 can be assembled. The light emitting unit 20 can be moved vertically between the light emitting position and the storage position by the driving unit 30. Details of the drive unit 30 will be described later.

  The strobe light emitting device 14 has an outer cover 31. The outer cover 31 can be mounted inside the exterior member 11 of the digital camera 100 and functions as a holding member that holds the light emitting unit 20 movably in the vertical direction. A capacitor holding portion 31 a for holding a capacitor 42 that supplies power to the xenon tube 21 is formed below the outer cover 31. The capacitor 42 is bonded to the capacitor holding portion 31 a by, for example, a double-sided tape 43. And retained.

  The drive unit 30 of the strobe light emitting device 14 will be further described with reference to FIG. FIG. 3 is a perspective view showing the positional relationship between the light emitting unit 20 and a part of the drive unit 30 as viewed from the lower rear side. As shown in FIG. 2 and FIG. 3, the drive unit 30 that is a moving body drive device having the light emitting unit 20 as a moving body includes a motor 32, a first gear 33, a second gear 34, and a third gear 35. A clutch spring 36, a fourth gear 37, a fifth gear 38, and a gear holder 40.

  The motor 32 is a drive source that drives the light emitting unit 20 in the vertical direction, and for example, a DC motor is used. The motor 32 is fixed using a screw 39 behind the outer cover 31 so that the output shaft extends in the horizontal direction. By energizing a terminal portion (not shown) of the motor 32, the output shaft of the motor 32 can be selectively rotated in the forward direction and the reverse direction.

  The first gear 33 is a worm gear that is press-fitted into the output shaft of the motor 32 and rotates in synchronization with the output shaft of the motor 32. The second gear 34 is a two-stage gear, and one of the gears constitutes a worm wheel that meshes with the first gear 33. The third gear 35 is a spur gear and meshes with the gear of the other stage of the second gear 34. The fourth gear 37 is a spur gear and meshes with one stage of a fifth gear 38 that is a two-stage gear. The other stage of the fifth gear 38 meshes with a rack gear 24 a formed on the base member 24.

  The third gear 35, the clutch spring 36, and the fourth gear 37 are combined with the fourth gear 37 by accommodating the clutch spring 36 in the space inside the gear of the third gear 35, so that the two-stage with the clutch. It constitutes a gear. This two-stage gear with a clutch rotates synchronously when the torque applied between the third gear 35 and the fourth gear 37 is smaller than a predetermined magnitude of torque. On the other hand, when torque of a predetermined magnitude or more is applied between the third gear 35 and the fourth gear 37, the third gear 35 and the clutch spring 36 start to slide, and the third gear 35 rotates. Even so, the fourth gear 37 idles. Thus, the rotation of the third gear 35 is not transmitted to the fifth gear 38 at the subsequent stage.

  The gear holder 40 has a first gear 33, a second gear 34, a two-stage gear with clutch, and a fifth gear 38 rotatably supported between the outer cover 31 and the rear side of the outer cover 31. It is fixed to the outer cover 31 using a hooking part and a screw 41.

  FIG. 4 is a perspective view showing a state in which the light emitting unit 20 is raised and lowered with respect to the outer cover 31 as viewed from the front upper side, and FIG. 4A is a state in which the light emitting unit 20 is raised (light emission). 4 (b) shows a state where the light emitting unit 20 is lowered (accommodated position).

  As shown in FIG. 4A, the protrusion 24 b provided on the base member 24 contacts the outer cover 31 when the light emitting unit 20 moves upward with respect to the outer cover 31. That is, the protrusion 24b functions as a stopper that regulates the upper limit position when the light emitting unit 20 is raised. On the other hand, as shown in FIG. 4B, the convex portion 24 c of the base member 24 contacts the outer cover 31 when the light emitting unit 20 moves downward relative to the outer cover 31. In other words, the convex portion 24c functions as a stopper that regulates the lower limit position when the light emitting portion 20 is lowered.

  Returning to the description of FIG. The strobe light emitting device 14 includes a hard substrate 45 and a flexible substrate 47. A lead wire 46 connected to the xenon tube 21 is attached to the hard substrate 45 by soldering, and a light emitting circuit for causing the xenon tube 21 to emit light and a connector for connecting to the flexible substrate 47 are mounted. ing. The hard board 45 is fixed to the outer cover 31 from behind the gear holder 40 using a hooking part and a screw 48. The flexible substrate 47 includes a connection terminal of the motor 32, a connector for connecting to the CPU, a secondary battery 49, and conductive contact pieces 47a, 47b, 47c on which the brush 26 slides.

  FIG. 5 is a partial perspective view showing a state in which the flexible substrate 47 is attached to the outer cover 31, and mainly the positional relationship between the conductive contact pieces 47 a, 47 b, 47 c provided on the flexible substrate 47 and the brush 26. Is shown. The flexible substrate 47 is bonded to the outer cover 31. The bonding surface of the outer cover 31 to which the conductive contact piece 47a is bonded is flat, and the bonding surface of the outer cover 31 to which the conductive contact pieces 47b and 47c are bonded has a shape including an inclination. The brush 26 includes four brush contact pieces, and two of the brush contact pieces (hereinafter referred to as “first brush contact pieces”) 26a slide relative to the conductive contact piece 47a and remain. Two brush contact pieces (hereinafter referred to as “second brush contact pieces”) 26b slide on sliding surfaces including the conductive contact pieces 47b and 47c.

  Since the brush 26 is fixed to the base member 24 as shown in FIG. 3, it slides in the vertical direction. In the present embodiment, the first brush contact piece 26a and the conductive contact piece 47a are in contact with each other to establish a ground connection. When the second brush contact piece 26b and the conductive contact piece 47c (first conductive contact piece) come into contact with each other in the ground connection state, the signal A (first signal) is electrically connected to the second brush contact piece 26b. When the contact piece 47b (second conductive contact piece) comes into contact, a signal B (second signal) is generated. The region between the conductive contact pieces 47b and 47c is a nonconductive region 47d made of a nonconductive material. When the second brush contact piece 26b and the nonconductive region 47d are in contact with each other, the signal is No signal is generated and the signal is turned off. The relationship between the contact between the conductive contact pieces 47b and 47c and the nonconductive region 47d and the second brush contact piece 26b and signal generation will be described with reference to FIG.

  FIG. 6 is a cross-sectional view including the conductive contact pieces 47 b and 47 c and the non-conductive region 47 d of the flexible substrate 47 bonded to the outer cover 31. The bonding surface to which the conductive contact pieces 47b and 47c of the flexible substrate 47 and the periphery thereof are bonded in the outer cover 31 is a flat sliding surface parallel to the moving direction (vertical direction) of the light emitting unit 20 (hereinafter referred to as “flat sliding surface”). M, N, and Z, and sliding surfaces (hereinafter referred to as “inclined sliding surfaces”) X and Y having a predetermined inclination with respect to the moving direction of the light emitting unit 20 are provided.

  The inclined sliding surfaces X and Y are inclined so that the contact pressure of the second brush contact piece 26b decreases as the light emitting unit 20 approaches the drive direction end (upper and lower ends of the movable vertical direction). Is set. When the conductive contact piece 47 b of the flexible substrate 47 is bonded and fixed to the outer cover 31, the conductive contact piece 47 b is installed on the flat sliding surface M and the inclined sliding surface X. This is because when the conductive contact piece 47b is installed across the flat sliding surface Z and the inclined sliding surface X, chattering occurs due to switching between the flat sliding surface Z and the inclined sliding surface X, which is correct. This is because the signal is not switched from the signal OFF to the signal B (or vice versa) at the timing, and noise is added. The same problem occurs when the conductive contact piece 47c is installed across the flat sliding surface Z and the inclined sliding surface Y. Therefore, when the conductive contact piece 47c of the flexible substrate 47 is bonded and fixed to the outer cover 31, this problem is avoided by installing the conductive contact piece 47c on the flat sliding surface N and the inclined sliding surface Y. .

  The sliding region of the second brush contact piece 26b is a sliding region R including only the inclined sliding surface X, the flat sliding surface Z, and the inclined sliding surface Y. Note that the sliding area of the first brush contact piece 26 a is within the range of the sliding area R of the conductive contact piece 47 a due to the structure of the brush contact piece 26.

  The sliding region R is defined as the sliding region R of the second brush contact piece 26b. When the second brush contact piece 26b reaches the flat sliding surface M or the flat sliding surface N, the light emitting unit 20 is driven. This is because it is not possible to shift the end of the direction. That is, in the present embodiment, the second brush contact piece 26b has a function of shifting the light emitting unit 20 at the light emission position and the storage position. When the second brush contact piece 26b is in contact with the conductive contact piece 47c on the inclined sliding surface Y, the light emitting unit 20 is biased toward the storage position. Conversely, when the second brush contact piece 26b is in contact with the conductive contact piece 47b on the inclined sliding surface X, the light emitting unit 20 is biased toward the light emitting position.

  As long as the second brush contact piece 26b is in contact with the conductive contact pieces 47b and 47c and is in contact with the inclined sliding surfaces X and Y, the non-conductive region 47d has the inclined sliding surface X and the inclined sliding surface Y. May be included.

  Next, a specific operation of the strobe light emitting device 14 will be described with reference to FIGS. FIG. 7 is a flowchart showing an operation control process of the strobe light emitting device 14. FIG. 8 is a timing chart when the light emitting unit 20 is moved between the storage position and the light emitting position. 7 is realized by a CPU (not shown) that controls the overall operation of the digital camera 100 executing a program stored in a memory (not shown) or the like.

  First, a case where the light emitting unit 20 in the storage position (drive start position) is moved (raised) to the light emission position (drive end position) will be described. The CPU executes a program for moving the light emitting unit 20 from the storage position to the light emitting position automatically or in response to a user operation. In step S10, the CPU confirms whether the signal A is output or the signal B is output at the storage position. When the signal A is detected, in step S21, the CPU starts energizing the motor 32 to rotate the motor 32 so as to move the light emitting unit 20 in the upward direction. As a result, in the drive unit 30, in conjunction with the rotation of the motor 32, the first gear 33 to the fifth gear 38 start to rotate simultaneously, and the light emitting unit 20 starts to rise.

  When the light emitting unit 20 starts to rise, the second brush contact piece 26b changes from the state in contact with the conductive contact piece 47c to the state in contact with the non-conductive region 47d. Therefore, in step S31, the CPU determines whether the signal A has been switched to the signal OFF (whether the signal OFF has been detected). Step S31 is a step of detecting that the second brush contact piece 26b has passed the first position defined by the boundary between the conductive contact piece 47c and the non-conductive region 47d. The CPU waits until the signal A is switched to the signal OFF (NO in S31). When the CPU detects a switch from the signal A to the signal OFF (YES in S31), the process proceeds to step S41.

  In step S41, the CPU starts time measurement by the timer 1 and advances the process to step S51. Note that the time measurement by the timer 1 and the timer 2 described later is performed by measuring a predetermined time set by the CPU using a timer (not shown) provided in the digital camera 100. In step S51, the CPU determines whether the signal has been switched from signal OFF to signal B (whether signal B has been detected). Step S51 is a step of detecting that the second brush contact piece 26b has passed the second position defined by the boundary between the non-conductive region 47d and the conductive contact piece 47b. The CPU waits until the signal is switched from the signal OFF to the signal B (NO in S51). When the CPU detects a switch from the signal OFF to the signal B (YES in S51), the CPU advances the process to step S61.

  In step S61, the CPU ends the measurement of the timer 1, determines the time measured by the timer 2 based on the correspondence table or the like stored in advance in the memory according to the measurement time of the timer 1, and determines the time by the timer 2. Start measurement. In step S71, when the time measured by the timer 2 determined in step S61 is reached, the CPU performs a stop process by applying a short brake. Thus, the driving of the light emitting unit 20 in the upward direction is completed, and the light emitting unit 20 is held at the light emitting position. At this time, the second brush contact piece 26b contacts the conductive contact piece 47b on the inclined sliding surface X. By contacting, the light emitting unit 20 is urged toward the light emitting position. Since it is clear that the timing chart of FIG. 8A conforms to the above-described steps S10 to S71, a description thereof will be omitted.

The process for moving (lowering) the light emitting unit 20 at the light emitting position to the storage position is the same as that for raising the light emitting unit 20 at the storage position to the light emitting position. In this case,
The light emission position is the drive start position, the storage position is the drive end position, the boundary between the conductive contact piece 47b and the nonconductive region 47d is the first position, and the boundary between the conductive contact piece 47c and the nonconductive region 47d is This is the second position.

  When the program for lowering is executed by the CPU, after the signal B is detected in step S10, the drive is finished through steps S22, S32, S42, S52, S62, and S72. Here, in step S31, the light emitting unit 20 is driven in the upward direction, but in step S22, the light emitting unit 20 is driven in the downward direction. In step S51, it is determined whether or not the signal B is detected. In step S52, it is determined whether or not the signal A is detected. The processes of steps S32, S42, S62, and S72 are the same as the processes of steps S31, S41, S61, and S71. Since it is clear that the timing chart of FIG. 8B conforms to steps S10 to S72, a description thereof is omitted.

  As described above, according to the present embodiment, the brush 26 and the flexible substrate 47 are used for detecting the position of the light emitting unit 20 and urging the light emitting unit 20 toward the driving direction end. Thereby, the number of parts can be reduced as compared with the conventional configuration, and the cost can be reduced. In the present embodiment, the area where the second brush contact piece 26b slides on the flexible substrate 47 is a flat slide provided between the inclined sliding surfaces X and Y and the inclined sliding surfaces X and Y. The moving surface Z is constituted. The conductive contact pieces 47b and 47c are provided only on the inclined sliding surfaces X and Y so as not to straddle the inclined sliding surfaces X and Y and the flat sliding surface Z, and the flat sliding surface Z is provided in the non-conductive region. 47d. Thereby, it is possible to prevent chattering before and after the sliding of the second brush contact piece 26b is switched between the conductive contact pieces 47b and 47c of the inclined sliding surfaces X and Y and the flat sliding surface Z. The exact position of the light emitting unit 20 can be detected.

<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. For example, the number of the conductive contact pieces and the brush contact pieces is not limited to the above-described embodiment, and the brush contact piece that performs the justification may be configured not to slide the conductive contact piece. What is necessary is just to set it as the structure which slides a conductive contact piece.

  Moreover, in the said embodiment, although the base of the 1st brush contact piece 26a and the 2nd brush contact piece 26b was made into the camera main body side of the digital camera 100, and the front-end | tip was arrange | positioned at the light emission part 20 side about the brush 26, this. The arrangement may be reversed. Also in this case, the second brush contact piece 26b is in contact with the conductive contact piece 47c when the light emitting unit 20 is in the storage position, and is in contact with the conductive contact piece 47b when the light emitting unit 20 is in the light emitting position. Furthermore, in the above embodiment, only the case where the light emitting unit as the moving body moves in the vertical direction has been described. However, the present invention can be applied to cases where the light emitting unit moves in the horizontal direction or moves in the rotational direction. . As a moving body that moves in the rotation direction, there is a strobe light emitting unit that is provided at the center of the top surface of the digital single-lens reflex camera and that can be moved between a storage position inside the camera body and a light emission position that irradiates a subject with flash light Can be mentioned.

14 Strobe light emitting device 20 Light emitting unit (moving body)
24 base member 26 brush 26a first brush contact piece 26b second brush contact piece 30 drive part 31 outer cover (holding part)
47 Flexible substrate 47a, 47b, 47c Conductive contact 47d Non-conductive area 100 Digital camera

Claims (7)

Drive means for driving the moving body from the drive start position to the drive end position;
It is detected that the moving body moving from the driving start position to the driving end position has passed the first position, and after detecting that the moving body has passed the first position, the moving body A moving body drive device comprising detection means for detecting that the position 2 has been passed,
The detection means includes
Before the moving body passes the first position, the moving body is urged toward the driving start position, and after the moving body passes the second position, the driving is ended. Biasing means for biasing toward the position;
A first signal is generated before the moving body passes the first position, and a signal is generated after the moving body passes the first position and before the second position. And a signal generating means for generating a second signal after the moving body has passed through the second position. The biasing means is
A brush contact that moves with the moving body;
A holding member that holds the movable body movably between the drive start position and the drive end position;
The holding member is provided with a first inclined sliding surface and a second inclined sliding surface that slide with the brush contact piece with a predetermined inclination with respect to the moving direction of the moving body,
When the first inclined sliding surface and the brush contact piece come into contact with each other, the moving body is urged toward the driving start position, and the second inclined sliding surface and the brush contact piece come into contact with each other. The moving body drive device according to claim 1, wherein the moving body is biased toward the driving end position by contact. The holding member is provided with a flat sliding surface made of a nonconductive material parallel to the moving direction of the movable body between the first inclined sliding surface and the second inclined sliding surface. ,
The signal generating means includes
A first conductive contact piece provided on the first inclined sliding surface;
A second conductive contact piece provided on the second inclined sliding surface,
The first signal is generated when the brush contact piece contacts the first conductive contact piece, and no signal is generated when the brush contact piece is in contact with the flat sliding surface. 3. The moving body driving apparatus according to claim 2, wherein the second signal is generated when the brush contact piece comes into contact with the second conductive contact piece. Comprising a flexible substrate affixed to the holding member;
4. The moving body drive device according to claim 3, wherein the first conductive contact piece and the second conductive contact piece are provided on the flexible substrate.   5. The movable body drive according to claim 2, wherein the brush contact piece moves between the first inclined sliding surface and the second inclined sliding surface. 6. apparatus. The driving means is a motor;
Time measuring means for measuring a time from when the movable body passes through the first position until it is detected that the mobile body has passed through the second position;
And setting means for setting a time from when it is detected that the moving body has passed the second position to when the motor is braked based on the time measured by the time measuring means. The moving body drive device according to any one of claims 1 to 5.   An imaging apparatus comprising the moving body driving device according to claim 1, wherein the moving body is a light emitting unit that emits flash light.

Images