JP2009288267A - Lens device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain an excellent radio communication state on a condition that a motor-driven lens device is carried. <P>SOLUTION: A communication device 6 is attached to a hand insertion belt member 22, and a radio transmitter/receiver part equipped with an antenna to transmit/receive a control signal by radio is incorporated in the communication device 6. The communication device 6 is surrounded by a housing 23 composed of non-conductive material. The communication device 6 is arranged on the outside of the hand insertion belt member 22 with respect to a lens body 3 having a metal part impeding antenna characteristics, and is set at a position suitable for arranging the radio transmitter/receiver part on the lens part. An attaching member 24 like a streak plate composed of a metallic plate is installed to be fixed to one end of the housing 23 nearly in parallel with the longitudinal direction of the housing 23 in the communication device 6. By inserting the attaching member 24 in the hand insertion belt member 22 along a belt body part 21, the communication device 6 is easily attached. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a lens apparatus including a lens body and a drive unit for electric drive in a broadcasting equipment product.

  In conventional electric lens devices having a drive unit for electric drive, a system configuration in which remote operation is performed by wire when used by remote operation has been performed. It has the problem of being affected by radio waves and noise.

  In a broadcasting lens apparatus, there may be a situation in which shooting is performed in an emergency approach to a subject that has been shot in a stationary state using a tripod. At this time, it is desirable that the photographer can immediately shift to a state where the photographer can take a picture with the lens device, but when photographing in a stationary state, the operation device used for remote operation is directly connected and attached to the lens device. Operation is common.

  Therefore, when moving from stationary shooting to carrying shooting, it is necessary to disconnect the operating device, but the task of disconnecting in the event of an emergency may result in missed shooting opportunities for the subject. Will be triggered.

  Furthermore, the possibility of breakage of the connecting portion due to the urgent removal work is increased. In view of this, a system has been proposed in which a control signal from a remote control device is transmitted and received wirelessly and a lens device is operated as in Patent Document 1.

JP 2005-217995 A

  In Patent Document 1, when an electric lens device fixedly mounted on a tripod is moved to a carrying state and shooting is performed, the connection from the remote control device is not necessary for wireless use, so that the connection from the remote control device is unnecessary. It can be easily removed.

  However, according to this disclosed information, while the wireless communication performance must be ensured in the stationary state, the wireless device remains attached to the connector portion in the carrying state, which prevents the photographer from holding the lens device. Problem arises.

  Also, in an environment where broadcasting equipment products are used, since various wireless devices are used at the same time, it is important to arrange a transmission / reception antenna unit for maintaining a good reception state.

  At this time, while avoiding a reduction in communication efficiency due to the metal part used in the lens device or the imaging device, there arises a problem that it is necessary to simultaneously achieve an arrangement that does not hinder the carrying.

  The object of the present invention is to eliminate the above-mentioned problems and prevent an influence on a good communication state for electric drive and gripping by a photographer in both a stationary state and a shoulder-carrying state. It is in providing a lens apparatus.

  In order to achieve the above object, a lens device according to the present invention includes a movable optical member, a drive unit that drives the movable optical member, and a command signal that is wired to the drive unit and drives the movable optical member. And a communication device that receives the wireless communication through a wireless communication device, and has a holding unit for holding the lens device, and the communication device is attached to the holding unit.

  According to the lens device of the present invention, when the photographer holds the lens device from the remote operation stationary state to the state where the lens device is held, the housing containing the transmission / reception antenna unit prevents the operation from being performed. do not become.

  The present invention will be described in detail based on the embodiments shown in the drawings.

  FIG. 1 is a schematic diagram of an entire image pickup apparatus in which the lens apparatus of Embodiment 1 is detachably attached. A lens unit 1 that is a lens device of an imaging device that can carry a shoulder is attached to a camera unit 2 that is a camera body having an imaging element and the like. The lens unit 1 includes a lens body 3 that is a lens barrel that houses a movable optical member that performs focus adjustment, zoom operation, and light amount adjustment, and an electric drive unit 4 that electrically drives these movable optical members. Moreover, the electric drive part 4 is connected so that it can communicate with the communication apparatus 6 by the wired connection via the communication cable 5. FIG.

  The camera unit 2 is fixed to a pan head unit 8 via a predetermined tripod fixing member 7, and the pan head unit 8 is provided with a plurality of panning bars 9 for changing the posture of the entire lens device. In such a normal configuration, it is general that the lens unit 1 is in a positional relationship or photographing situation in which it is difficult to operate by directly touching the lens unit 1 with a hand. Therefore, the panning bar 9 is provided with a zooming remote control device 10 and a focus adjustment remote control device 11 for performing zooming operation and focus adjustment operation of the lens device by remote control.

  The zooming remote control device 10 and the focus adjustment remote control device 11 are command devices for transmitting both command signals and for wirelessly transmitting / receiving the signal of the control switch on the electric drive unit 4 to / from the communication device 6. It is connected to the transmission / reception unit 12. With this configuration, the zooming remote control device 10 or the focus adjustment remote control device 11 operated by the photographer's hand and the lens unit 1 are not directly connected but are directly connected by the communication device 6 and used. It can be operated without any change. In other words, when shooting with the imaging device fixed on a tripod or the like or stationary shooting in remote shooting, a command from the command device is transmitted to the imaging device from a position away from the imaging device by wireless communication, and the imaging device is operated. be able to.

  FIG. 2 is a main part configuration diagram around the lens body 3 and the communication device 6. The electric drive unit 4 is provided with a band body 21 made of, for example, a band or a band for stably holding the lens body 3 by hand when the photographer holds the lens apparatus on the shoulder. The band member 21 is provided with a back member 22 that assists stable holding when the lens body 3 is held stably. The band portion 21 is formed in a loop shape, and the photographer's hand and the lens body 3 (the lens portion 1 and the camera portion 2) can be relatively fixed by passing the hand inside the loop. The main body 3 is held stably. Here, it is desirable that the band portion 21 penetrates the inside of the back member 22 and is disposed at a position where it is pressed against the back of the photographer's hand. The band unit 21 is a holding unit that functions to relatively fix the imaging device and the photographer's hand, that is, to hold the imaging device in a stable state by the photographer's hand.

  The communication device 6 is attached to the back member 22 by means described later. The communication device 6 mainly includes a wireless transmission / reception unit including an antenna (not shown) that transmits / receives a drive signal and a command signal for driving the movable optical member by radio. The communication device 6 is surrounded by a housing 23 made of a nonconductive material. Further, the communication device 6 is disposed outside the back member 22 with respect to the lens body 3 having a metal part that hinders antenna characteristics, and is a suitable position for arranging the wireless transmission / reception unit in the lens unit 1. Yes. Here, in the present embodiment, the communication device 6 is attached to the back member 22, but this is not restrictive. For example, the communication device 6 may be attached to the belt body portion 21, the upper member 22 may not be used, and a part of the belt body portion 21 may be formed in a loop shape and attached to the loop.

  FIG. 3 is a perspective view of the communication device 6. The communication device 6 is fixed to one end of the housing 23, and is substantially parallel to the longitudinal direction of the housing 23, for example, a strip-shaped mounting member 24 made of a metal plate. Is attached. As shown in FIGS. 4A to 4B, the communication device 6 can be easily attached by inserting the attachment member 24 into the upper member 22 along the band portion 21.

  FIG. 5 is a perspective view of the communication device 6 attached. By connecting the communication cable 5 to the connection unit 25 of the electric drive unit 4, the communication device 6 transmits and receives power supplied from a lens control board built in the electric drive unit 4 and a communication signal described later. .

  As described above, the use of the imaging device with the communication device 6 attached may switch between stationary shooting and shoulder-held shooting during shooting. For example, in golf relay, shooting is performed remotely during play, and when playing at the final hole is finished and the winner is decided, switching to shoulder shoulder shooting and approaching the player such as the winner to interview There is. When the photographer shifts from the stationary shooting to the shoulder-held shooting, the camera unit 2 is released from the tripod fixing member 7 and at the same time, the photographer's right hand is placed between the upper support member 22 and the electric drive unit 4. Is inserted and the electric drive unit 4 is gripped, and the holding member 22 maintains a stable gripping posture.

  FIG. 6 shows a gripping state by the right hand R when the lens unit 1 is gripped when the photographer carries out shooting in the above-described situation. In the gripping state with the photographer's right hand R, the communication device 6 is disposed on the opposite side of the right hand R with respect to the lens unit 1 and is in a positional relationship that can avoid the obstacles to communication characteristics due to the human body.

  Further, when the photographer grips the lens unit 1, the communication device 6 is in a positional relationship that does not obstruct the right hand R. Even in a situation where the lens unit 1 must be gripped suddenly, the communication device 6 is quickly electrically driven. The part 4 can be gripped by the right hand R.

  FIG. 7 shows a state in which the back member 22 has a band 31 that incorporates a line having the same function as the communication cable 5 and the communication device 6 is fixed to the back member 22. 8A to 8C show the arrangement of the electrical contact portions 32 of the band body portion 31 and the mounting relationship of the electrical contact portions 34 of the attachment member 33 fixed to one end of the communication device 6, respectively.

  An electrical contact portion 32 is attached to a portion of the band portion 31 that passes through the inside of the upper support member 22 and contacts the attachment member 33. The electrical contact portion 32 is connected to the control board in the electric drive unit 4 by a flat wiring or the like that passes through the belt body portion 31.

  The electrical contact portion 32 of the band portion 31 facing the attachment member 33 side includes communication electrical contact portions 32a to 32e and positioning holes 32f and 32g. On the other hand, the attachment member 24 is also provided with an electrical contact portion 34, and contact projections 34a to 34e and positioning projections 34f and 34g are provided at positions facing the electrical contact portion 32, respectively. The wiring of the electrical contact portion 34 is drawn into the communication device 6 through the inside of the attachment member 24.

  At the time of insertion, until the positioning protrusions 34f and 34g of the mounting member 24 are engaged with and fixed to the positioning holes 32f and 32g of the band body portion 31, they are not short-circuited to other contacts when the power is turned on. The innermost contacts 32a and 34a are set. And electrical connection is made corresponding to the communication electrical contact portions 32a to 32e.

  With the above configuration, when the electric drive unit 4 is gripped more deeply with the photographer's right hand R as shown in FIG. 9, the communication cable 5 as in the first embodiment is omitted. A gripping posture in which the lower part is covered with a palm can be taken, and a stable gripping posture can be obtained. Also in the second embodiment, the communication device 6 has a structure that can be easily inserted and removed by the mounting member 24 with respect to the back member 22 used when the photographer holds the lens body 3. With this arrangement, the antenna characteristics when the control signals are transmitted and received by the remote control devices 10 and 11 by radio are not impaired, and the arrangement is such that the photographer does not have an obstacle when grasping and can stably grasp. Can be achieved.

  In addition, since the control signal is transmitted and received wirelessly, since the cable body or the like is not connected to the lens body 3 even in the stationary state, the fixing of the camera unit 2 from the tripod fixing member 7 is released simultaneously. It also has an immediate effect.

  Furthermore, without using the communication cable 5, the electrical contact portion 32 is provided in the band body portion 31, and the electrical contact portion 34 that contacts the electrical contact portion 32 is provided in the attachment member 24 of the communication device 6. In addition, there is an effect that a more stable gripping posture can be taken.

  FIG. 10 is a main part configuration diagram of the periphery of the lens body 3 and the communication device 6 in the third embodiment. An abutting member 22 is attached to the electric drive unit 4 fixed to the lens body 3 by a band part 21, and a communication device 6 is attached to the abutting member 22 by a fixing method described later. In this case, instead of the band body part 21, the band body part 31 in which the communication cable 5 is omitted and the electric contact part 32 is provided may be used.

  FIG. 11 is a configuration diagram of a main part of the communication device 6, and FIGS. 12A to 12C show a state where the communication device 6 is attached to the back member 22. As shown in FIG. 12A, the housing 23 of the communication device 6 is provided with a locking member 41 that enables the attachment member 24 to be fixed to the back member 22.

  The communication device 6 is detachably attached by an attachment member 24 fixed to one end of the housing 23. The band member 21 is inserted through the back member 22 so as to penetrate the inside, and the attachment member 24 is inserted so as to share the insertion portion of the band 21, thereby mounting the communication device 6. Similar to the previous embodiment, it can be easily performed.

  In order to attach the communication device 6 to the back member 22, the angle of the locking member 41 is adjusted so that the attachment member 24 can be inserted. Subsequently, as shown in FIG. 12B, after the attachment member 24 is inserted into the back member 22, the locking member 41 is rotated as shown in FIG. The fitting member 24 is fitted to the tip of the upper member 24, and the attachment member 24 is prevented from being extracted from the upper member 22.

  As described above, in the third embodiment, the locking member 41 is provided when the mounting member 24 is fixed to the back member 22, so that a strong mounting is possible even when a violent photographing operation is performed, and there is a risk of detachment. The stability can be further improved.

  In addition to the configuration of the locking member 41 described above, the same effect can be obtained by a configuration that realizes both functions of attachment and retaining, such as a flat fastener.

  FIG. 13 is a configuration diagram of a main part around the lens body and the communication device of the lens device according to the fourth embodiment. A back member 22 is attached to the electric drive unit 4 fixed to the lens body 3 by a band portion 21, and the communication device 6 is attached to the back member 22 in the same manner as in the above-described embodiment.

  As shown in FIGS. 13 and 14, the housing 23 of the communication device 6 is provided with a display unit 51 that displays information on the communication state and control state of the lens device described above by blinking LEDs and colors. Yes. In order to be able to display in two directions, the display unit 51 is L-shaped so as to straddle these ridge lines on the opposite surface of the mounting member 24 of the housing 23 of the communication device 6 and the surface orthogonal to the opposite surface. Further, it is provided so as to protrude outward from the outer wall of the housing 23 so that it can be recognized from four directions.

  According to the present embodiment, it is possible to confirm the communication state from a wide range during remote operation, and the reliability and accuracy of the photographer are increased in the operation of the lens apparatus.

  In the above-described embodiment, the wireless control signal has been described with respect to the scaling operation and the focus adjustment operation. Examples of the operation include a recording function, a video feed back function, a light amount adjustment function, an image stabilization characteristic function, an automatic focus adjustment function, a macro photographing function, and a predetermined composition restoration function.

  The preferred embodiments of the present invention have been described above, but the present invention is not limited to these embodiments, and various modifications and changes can be made within the scope of the gist thereof.

  With the lens device according to the present embodiment, when the photographer grips the lens device when the lens device is shifted from the remote operation stationary state to the state in which the lens device is held, the housing including the transmission / reception antenna unit is operated. There is no hindrance. In addition, the transmission / reception antenna portion is arranged on the back member of the driving member of the lens device which is the remotest place from the metal portion of the lens device or imaging device which is a factor that hinders the antenna characteristics, thereby obtaining good communication characteristics. An effect is obtained. Furthermore, the communication device incorporating the transmission / reception antenna unit uses a support member for removably fixing to the back member and a retaining member attached to the support member, so that simple insertion / removal and robustness can be achieved. Fixing can be realized. Furthermore, in the case surrounding the communication device, if the display unit for displaying the communication state is arranged with high visibility, the photographer can easily grasp the communication state.

1 is a schematic diagram of an entire imaging apparatus according to Embodiment 1. FIG. It is a principal part block diagram. It is a perspective view of a communication apparatus. It is explanatory drawing of the procedure which attaches a communication apparatus. It is a perspective view of the state where the communication apparatus was attached to the back member. It is explanatory drawing of the holding state of a lens part. FIG. 6 is a main part configuration diagram of Embodiment 2. It is explanatory drawing of a connection state. It is explanatory drawing of the holding state of a lens part. FIG. 6 is a main part configuration diagram of Example 3. It is a block diagram of a communication apparatus. It is explanatory drawing of the state which attached the communication apparatus. FIG. 6 is a main part configuration diagram of Embodiment 4. It is a block diagram of the display part of a communication apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lens part 2 Camera part 3 Lens main body 4 Electric drive part 5 Communication cable 6 Communication apparatus 21, 31 Band body part 22 Back member 23 Case 24, 33 Attachment member 32, 34 Electrical contact part 41 Locking member 51 Display part

Claims (8)

A lens device comprising: a movable optical member; a drive unit that drives the movable optical member; and a communication device that is wired to the drive unit and receives a command signal for driving the movable optical member by wireless communication. And
A holding portion for holding the lens device;
The communication apparatus is attached to the holding unit.   The lens device according to claim 1, wherein the holding unit includes an upper member, and the communication device is attached to the upper member.   The lens device according to claim 1, wherein the communication device is surrounded by a housing made of a non-conductive material.   The lens device according to claim 2, wherein the communication device is detachably attached to the back member via an attachment member.   The lens device according to claim 4, wherein when the communication device is attached to the back member, an antenna portion provided inside the communication device is disposed on the opposite side of the attachment member.   The housing of the communication device has a display unit, and the display unit can display in two directions, an opposite surface of the mounting member of the housing and a surface orthogonal to the opposite surface. The lens device according to claim 4 or 5.   7. An electrical contact portion is provided on each of the attachment member of the communication device and the back member, and electrical connection is established by attaching the communication device to the back member. The lens device according to claim 1.   A camera device comprising the lens device according to claim 1.

Images