JP6235835B2 - Lens system and photographing apparatus having the same - Google Patents

Description

  The present invention relates to a lens system, and more particularly to a lens system including a drive operation unit capable of changing a function assignment setting of a movable optical member to an operation unit of the drive operation unit, and an imaging apparatus including the lens system.

  2. Description of the Related Art Conventionally, a photographing apparatus used for television photographing is composed of a TV camera body and a TV lens, and is used by mounting the TV lens on the TV camera. Of these, the TV lens is roughly divided into a lens body and a drive unit, and the lens body has a photographing optical system and a manual ring for manually operating it. In the drive unit, a motor, a control board, and a CPU for electrically driving these manual rings are stored inside, and various switches and operation members for instructing electric control are provided on the exterior surface. For TV lenses, manual zooming and iris operations used to occupy most of the shooting before, but recently, shooting with an electric servo is also frequently performed, and various functions are added to the drive unit (patents) Reference 1). For example, once an arbitrary zoom position is stored, a preset function that drives the motor to the stored zoom position by pressing a switch. In addition, there is a function that allows the user to freely assign the preset function to a switch at a favorite position among a plurality of switches on the drive unit. The means for assigning and setting various functions includes a function setting means for setting a function relating to photographing of the lens, a display panel used therefor, and a storage means capable of storing a plurality of setting information of each function relating to photographing of the TV lens. This makes it possible to grasp the situation easily and instantaneously. Further, an easy-to-use optical device having a function setting unit with excellent operability is provided. Thus, these functions that can be set and changed according to the user's preference widen the range of shooting by the photographer and make it possible to realize optimal camera work in accordance with various shooting situations.

Japanese Patent Laid-Open No. 2001-124979

  However, an optical device composed of a TV camera body and a TV lens used for television shooting is often owned by a broadcasting station or production, and is not owned by an individual, so an optical device is used. There are many cases where a photographer is not fixed. For this reason, various settings are made for each cameraman, and when a cameraman other than the cameraman who performed the settings uses the optical device, for example, when a certain switch on the drive unit is operated, The problem arises that different functions work. In television shooting, from the viewpoint of not missing a shooting opportunity, there are many cases where shooting is suddenly started. In this case, if the above problem occurs, the shooting opportunity is missed, or an image unintended by the cameraman Is likely to be shot.

  Accordingly, an object of the present invention is to provide a lens system in which a function that is not intended by the photographer is not activated while the movable optical member has a configuration in which the function assignment setting to the operation unit of the drive operation means can be changed. Is to provide.

In order to achieve the above object, a lens system of the present invention includes a movable optical member, a lens device connected to the camera device, a driving unit connected to the lens device and driving the movable optical member, and the camera device. At least one of a return function for outputting a return signal, a recording command function for instructing the camera device to start recording, a drive command function for instructing driving of the movable optical member, and a drive switching function for switching between electric driving or manual operation of the movable optical member A control means having the following functions: an operation means to which the function of the control means is assigned as an initial setting and operated by a user; a function operation means to be operated by a user assigned to an arbitrary function of the control means; and function setting means for changing a setting of the function assigned to the operation means and the function operation means, switching a first mode and a second mode And mode switching means for obtaining, wherein the function setting means, in the first mode, is capable of setting change of the assignment of the function of the control means for the operation means and the function operation means, in the second mode, operating means The function assignment setting of the control means can not be changed, and the function assignment setting change of the control means can be changed with respect to the function operating means .

  According to the present invention, there is provided a lens system in which a function that is not intended by a photographer is not activated while the movable optical member has a configuration in which the function assignment setting to the operation unit of the drive operation unit can be changed. be able to.

1 is a top view of a lens system in Embodiment 1 of the present invention. 2 is a rear view of the lens system in Embodiment 1. FIG. FIG. 3 is a configuration diagram of a function setting switch according to the first embodiment. 1 is a functional configuration diagram of a lens system in Embodiment 1. FIG. 3 is a display example of a menu screen of a drive unit in the first embodiment. FIG. 10 is a top view of a zoom demand in the second embodiment. FIG. 10 is a side view of a zoom demand in the second embodiment. FIG. 6 is a functional configuration diagram of a lens system in Embodiment 2. 10 is a display example of a menu screen of a drive unit in the second embodiment.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  Hereinafter, a lens system according to a first embodiment of the present invention will be described with reference to FIGS.

  1 and 2 are a top view and a rear view of the lens device.

  A lens device 101 includes a photographing optical system including a focus lens, a zoom lens, and an iris that are movable optical members inside, and a manual ring for manually operating the focus lens, zoom lens, and iris on the outside. Have

  Reference numeral 102 denotes a drive unit (drive control device) which is detachably attached to the lens body 101, and stores therein a motor for electrically driving the manual ring of the lens body 101, a control board, a CPU, and the like. 103 is a seesaw switch (operating means) that is operated when the zoom is electrically driven. When the switch is pushed in the direction of T or W in the figure, the zoom lens is moved in the telephoto direction or in the wide angle direction at a speed corresponding to the pushing amount. The drive command function to move to is assigned. Reference numeral 104 denotes a return switch (operation means) to which a return function for returning a return signal to the camera in response to the switch operation is assigned. In general, the return switch 104 is a switch for confirming at hand the video shot by another camera and actually used for broadcasting when shooting the video by a plurality of cameras. Reference numeral 105 denotes a VTR switch (operation means) for instructing the start of recording, and a recording instruction function is assigned thereto. Reference numeral 106 denotes an iris drive changeover switch (operation means) to which a drive changeover function for switching whether the iris is manually operated by a manual ring or electrically driven by a motor is assigned. The seesaw switch 103, the return switch 104, the VTR switch 105, and the iris drive changeover switch 106 are the most basic switches (operation means) related to television shooting. Further, from the viewpoint of inheriting the operability of the TV lens, it is arranged at the illustrated position without changing from the old days in the long history of the TV lens.

  Reference numeral 107 denotes a function switch (function operation means) A, which is a switch on the premise that an arbitrary function is assigned to the function switch A107 from various functions related to photographing using a lens. For example, if a preset function is assigned to this switch, the photographer can store the current zoom position by pressing the function switch A 107 simultaneously with the memory switch 109 described later. Thereafter, regardless of the position of the zoom, the function switch A107 can be pressed to return the zoom to the stored position. Reference numeral 108 denotes a function switch (function operation means) B, which is a switch on the premise that an arbitrary function is assigned to the function switch B 108 from various functions related to lens photographing. For example, the function of reciprocating the zoom by pressing the switch is assigned to this switch. Then, if the photographer keeps pressing the function switch B, the lens zooms to the telephoto end, and after focusing at the telephoto end where the depth is shallow, when the hand is released from the function switch B, it can return to the original zoom position. It can be used as an assist function for matching. These function switches are set so that they do not function even if the function switch A or function switch B is pressed so that the zoom does not suddenly start when the cameraman manually operates the lens. It is also possible to do. Reference numeral 109 denotes a memory switch used for storing the current zoom position, speed, direction, and the like.

  110 is a liquid crystal display panel provided on the back surface of the drive unit 102, 111 is a display switch for switching display / non-display of the display panel, and the display panel 110 is lit only when necessary to reduce power consumption. Yes. Reference numeral 112 denotes a function setting switch for setting various functions related to photographing of the lens.

  FIG. 3 is an enlarged view of the function setting switch 112. The function setting switch 112 shown in FIG. 3 includes four arrow keys 202 to 205 and one selection key 201 in the figure. Then, along the screen menu displayed on the display panel 110, the cursor is moved with the four arrow keys 202 to 205, one of the functions is selected, and the selection key 201 is confirmed.

  Next, the internal configuration of the lens apparatus is shown in FIG.

  In FIG. 4, reference numeral 301 denotes a focus lens optical system that performs focus adjustment, 302 denotes a focus motor that drives the focus lens optical system 301, 303 denotes a focus position detection unit that outputs a position signal corresponding to the position of the focus lens optical system 301, A focus control unit 304 controls the focus lens optical system 301. 305 is a zoom lens optical system that performs zooming adjustment, 306 is a zoom motor that drives the zoom lens optical system 305, 307 is a zoom position detection unit that outputs a position signal corresponding to the position of the zoom lens optical system 305, and 308 is a zoom. A zoom control unit that controls the lens optical system 305. Reference numeral 309 denotes an iris blade that performs iris adjustment, 310 denotes an iris motor that drives the iris blade 309, 311 denotes an iris position detector that outputs a position signal corresponding to the position of the iris blade 309, and 312 denotes an iris control that controls the iris blade 309. Part. 313 is an extender optical system that changes the focal length to 1.5 times or 2.0 times, 314 is an extender motor that drives the extender optical system 313, and 315 outputs a position signal corresponding to the position of the extender optical system 313. An extender position detector 316 is an extender controller that controls the extender optical system 313. Reference numeral 317 denotes a CPU (control means) that controls the control portion of the present embodiment, 110 denotes a display panel using liquid crystal provided on the back surface of the drive unit 102, and 112 denotes a function setting switch for setting various functions related to lens photographing. . Reference numeral 318 denotes a storage unit for storing various functions and characteristics relating to photographing of the lens, 319 denotes various switch communication units attached to the drive unit 102, 320 denotes a data communication unit with the outside of the lens, 321 denotes a communication unit with various demands, Reference numeral 322 denotes a communication unit with the camera device.

  In this embodiment, the function setting means constituted by the display panel 110 and the function setting switch 112 is a means for setting assignment of various functions to the above-described switch or the like (operation means), and a function assignable range. Function assignment is set in two different modes. The two modes are a fixed user mode that is effective when the user to be used is fixed and an arbitrary user mode that is effective when used by a plurality of photographers. Details of each mode will be described later.

  FIG. 5 is an example of a menu screen for setting the lens function displayed on the display panel 110. (A) is a menu screen in the fixed user mode, and (b) is a menu screen in the arbitrary user mode.

  A setting item changing operation on the menu screen will be described.

  By placing the cursor on one of the items 401 to 409 in the menu screen using the arrow keys 202 to 205 and pressing the selection key 201, the setting of the cursor item can be changed. When the cursor item is changeable, the cursor position is fixed, and the set value can be changed by pressing the arrow keys 204 and 205. When the set value is determined, by pressing the selection key 201, the changed set value is stored in the storage unit 318, and the cursor can be moved again.

  The menu screen setting items will be described below.

  Reference numeral 401 denotes a mode switching menu. Each time the arrow keys 204 and 205 are pressed to change the mode as a setting value, a fixed user mode (first mode) and an arbitrary user mode (second mode) are displayed. Switch. That is, the display panel 110 and the function setting switch 112 constitute a mode switching unit that switches between the fixed user mode and the arbitrary user mode. When the fixed user mode is selected, the menu screen becomes FIG. 5A, and when the arbitrary user mode is selected, the menu screen becomes FIG. 5B.

  Reference numeral 402 denotes a function assignment setting item for the VTR switch 105. The VTR switch 105 is a function for instructing the start of recording in the initial setting, but other functions can be assigned by changing the setting item 402. For example, the setting can be changed to a return function, a preset function, a shuttle function, or the like.

  Reference numeral 403 is a setting item for function assignment of the return switch 104. The return switch 104 is a function that sends a signal back to the camera in the initial setting, but other functions can be assigned by changing the setting item 403. For example, the setting can be changed to a VTR function, a preset function, a shuttle function, or the like.

  Reference numeral 404 denotes a setting item for the switching state of the iris drive changeover switch 106. The iris drive changeover switch 106 has a function of switching between manual operation and electric operation of the iris in the initial setting, but the change state can be changed by changing the setting item 404. For example, the setting can be changed such that the iris is set to manual operation regardless of the state of the iris drive changeover switch 106, or the iris is set to electric operation regardless of the state of the iris drive changeover switch 106.

  Reference numeral 405 denotes a setting item to be driven by the seesaw switch 103. The seesaw switch 103 is a switch for instructing electric driving of zoom in the initial setting, but the drive target can be changed by changing the setting item 405. For example, the setting can be changed such that the seesaw switch 103 is a switch for instructing electric driving of the iris.

  Reference numeral 406 denotes a function assignment setting item for the function switch A 107. An arbitrary function can be assigned by changing the setting item 406. For example, a VTR function, a return function, a preset function, a shuttle function, or no function can be set.

  Reference numeral 407 denotes a setting item for function assignment of the function switch B108. An arbitrary function can be assigned by changing the setting item 407. For example, a VTR function, a return function, a preset function, a shuttle function, or no function can be set.

  Reference numeral 408 denotes an iris torque setting item. By changing the setting item 408, it is possible to change the weight of the ring (the setting value of the drive characteristic) when manually operating the manual ring of the iris. By changing the weight of the ring, the iris ring can be operated with the user's preferred operational feeling.

  Reference numeral 409 denotes a setting item for switching between enabling / disabling of the zoom tracking function. The zoom tracking function is a function that limits a zoom drive region by an arbitrary zoom position stored by the memory switch 109. By using the zoom tracking function, it is possible to use the lens device within a desired field angle range, and it is possible to prevent an operation of zooming more than necessary depending on the shooting situation. By changing the setting of 409, it is possible to change whether the zoom tracking function is enabled or disabled.

  Whereas the items 402 to 407 correspond to the change / setting of the “function” assigned to the switch (operation means), the setting item 408 for the iris torque and the setting item for switching the zoom tracking function between valid / invalid. For 409, this means a change of the “setting value” for the assigned function. In the former case, as described above, the display panel 110 and the function setting switch 112 constitute a function setting unit. In the latter case, a setting value changing unit is constituted.

  In the fixed user mode, the setting items on the menu screen are 402 to 409, and the lens function can be customized according to the user's preference. For example, the preset function can be assigned to the VTR switch 105 or the drive target of the seesaw switch 103 can be changed to iris according to the ease of pressing the switch depending on the arrangement of the lens device and the frequency of use of the lens function. Therefore, by changing the setting according to the user to be used, it is possible to realize usability suitable for the user.

  However, when the lens device is used jointly by a plurality of users, if the function operated by the switch provided in the lens device is changed from the default function, the function that is not intended by the user operates. , Leading to misoperation.

  On the other hand, in the arbitrary user mode, the setting items on the menu screen are 406 to 409. In the arbitrary user mode, the setting items 402 to 405 are excluded from the setting items that can change the function of the initial setting operated by the switch provided in the lens apparatus to another function. Is not displayed. Therefore, the functions that relate to operations that particularly affect the captured image or the functions that may affect the broadcast image are not changed, so the functions that are not intended by the user. It is possible to prevent an erroneous operation such as activation of. Further, since it is possible to change the setting of other lens functions, it is possible to maintain a suitable camera work.

  Therefore, when taking the operation form to be used jointly by a plurality of users, it is possible to prevent an erroneous operation that affects the photographed image or the image to be broadcast by setting the arbitrary user mode. It becomes possible.

  In the present embodiment, the example in which the switching between the fixed user mode and the arbitrary user mode is performed by operating the function setting switch from the menu screen is described, but the present invention is not limited to this. For example, when changing, it can be changed by entering a password, or it can be changed only by a special operation in combination with other switches. The fixed user mode may not be used.

  In the present embodiment, an example in which the setting value is stored in the storage unit 318 when the setting item is changed has been described, but the present invention is not limited to this. In the case of the arbitrary user mode, the storage unit 318 may be configured not to store the setting value. In other words, in the optional user mode, the setting item functions can be changed but are not stored. Therefore, once the power is turned off, the setting value returns to the initial setting value, and the user always has the same setting state (initial setting) when the power is turned on. Can be used in this state. Furthermore, in the arbitrary user mode, only the setting items related to lens driving may not be stored. That is, in the arbitrary user mode, for example, if the setting value of the tracking function valid / invalid switching setting is not stored, the zoom operation range is limited when the power is turned on. It is more desirable because it can prevent the effect.

  In this embodiment, an example in which a cross key is used as a function setting switch has been described. However, any setting switch such as a jog shuttle switch can be used as long as the function can be set according to the display flow of the display panel. .

  Furthermore, in this embodiment, the display panel and the function setting switch are provided in the drive unit, but they may be arranged in any part of the lens system.

  Hereinafter, a lens system according to a second embodiment of the present invention will be described with reference to FIGS.

  In the first embodiment, the example in which the drive unit connected to the lens apparatus includes the function setting unit has been described. However, in this embodiment, a demand that is an operating device connected to the drive unit and performing a command operation includes the function setting unit. An example will be described.

  6 and 7 are a top view and a side view of the zoom demand. In the figure, reference numeral 601 denotes a zoom demand main body, which is an operation device connected to the lens device. Reference numeral 602 denotes a seesaw switch (operation means) that is operated when the zoom is servo-driven. When the switch is pushed in the direction T or W in the figure, the zoom lens moves in the telephoto direction or the wide-angle direction at a speed corresponding to the pushing amount. Move to. Reference numeral 603 denotes a return switch (operation means) that returns a signal to the camera in response to the switch operation, and reference numeral 604 denotes a VTR switch (operation means) that triggers recording.

  Reference numeral 605 denotes a function switch (function operation means) A, which is a switch on the premise that an arbitrary function is assigned to the function switch A605 from various functions related to photographing using a lens.

  Reference numeral 606 denotes a memory switch used for storing the current zoom position, speed, direction, and the like.

Reference numeral 607 denotes a liquid crystal display panel provided on the upper surface of the zoom demand 601, and reference numeral 608 denotes a display switch for switching display / non-display of the display panel. The display panel 607 is turned on only when necessary to reduce power consumption. ing. Reference numeral 609 denotes a function setting switch for setting various functions related to lens photographing.
The details of the function setting switch 609 are the same as those in FIG.

Next, FIG. 8 shows an internal configuration of the lens device and the zoom demand.
Elements indicated by the same reference numerals as those in FIG. 4 of the first embodiment are the same and will not be described.

  In FIG. 8, reference numeral 817 denotes a CPU (control means) for controlling the zoom demand 601, 607 denotes a liquid crystal display panel provided on the upper surface of the zoom demand 601, and 609 sets various functions related to lens photographing. Function setting switch. Reference numeral 818 denotes a storage unit for storing various functions and characteristics related to the photographing of the lens, 819 denotes various switch communication units attached to the zoom demand 601, and 821 denotes a communication unit with the lens apparatus.

  The storage unit 818 stores function and characteristic settings in the case of the fixed user mode, but does not store setting values in the case of the arbitrary user mode.

  The zoom demand 601 is connected to the lens device via the communication unit 821 and the communication unit 321.

  In this embodiment, an example of a fixed user mode and an arbitrary user mode when function setting means is included in a zoom demand will be described.

FIG. 9 is an example of a menu screen for setting a lens function to be displayed on the display panel 607. (A) is a menu screen in the fixed user mode, and (b) is a menu screen in the arbitrary user mode.
The setting item changing operation is the same as in the first embodiment.

  A mode switching menu 901 switches between the fixed user mode and the arbitrary user mode each time the function setting switch 609 is operated to change the mode as a setting value. That is, the display panel 607 and the function setting switch 609 constitute a mode switching unit that switches between the fixed user mode and the arbitrary user mode. When the fixed user mode is selected, the menu screen becomes FIG. 9A, and when the arbitrary user mode is selected, the menu screen becomes FIG. 9B.

  Reference numeral 902 denotes a function assignment setting item for the VTR switch 604. The VTR switch 604 is a function for instructing the start of recording in the initial setting, but other functions can be assigned by changing the setting item 902. For example, the setting can be changed to a return function, a preset function, a shuttle function, or the like.

  Reference numeral 903 denotes setting items for function assignment of the return switch 603. The return switch 603 is a function that sends a signal back to the camera in the initial setting, but other functions can be assigned by changing the setting item 903. For example, the setting can be changed to a VTR function, a preset function, a shuttle function, or the like.

  Reference numeral 904 denotes a function assignment setting item for the function switch A605. An arbitrary function can be assigned by changing the setting item 904. For example, a VTR function, a return function, a preset function, a shuttle function, or no function can be set.

  Reference numeral 905 denotes a setting item for switching between enabling / disabling of the zoom tracking function. By changing the setting item 905, whether the zoom tracking function is enabled or disabled can be changed.

  While the above items 902 to 904 correspond to the change / setting of the “function” assigned to the switch (operation means), the setting item 905 for switching the zoom tracking function between valid / invalid is assigned. This is a change of the “setting value” for the function. In the former case, as described above, the display panel 607 and the function setting switch 609 constitute function setting means. In the latter case, the setting value changing means constitutes setting value changing means.

  In the fixed user mode, the setting items on the menu screen are 902 to 905, and a favorite lens function can be set at a favorite switch position of the user to be used. Therefore, it is possible to realize operability that is easy for the user to use.

  However, when the zoom demand is used jointly by multiple users, if the function operated by the switch provided for the zoom demand is changed from the default setting function, the function that is not intended by the user operates. , Leading to misoperation.

  On the other hand, in the arbitrary user mode, the setting items on the menu screen are limited to 904 to 905. In the arbitrary user mode, the setting items 902 and 903 are excluded from the setting items that can change the initial setting function operated by the switch provided for the zoom demand to another function. Do not show. Therefore, the functions that relate to operations that particularly affect the captured image or the functions that may affect the broadcast image are not changed, so the functions that are not intended by the user. It is possible to prevent an erroneous operation such as activation of.

  Therefore, when taking the operation form to be used jointly by a plurality of users, it is possible to prevent an erroneous operation that affects the photographed image or the image to be broadcast by setting the arbitrary user mode. Is possible.

  In this embodiment, in the arbitrary user mode, the function setting is not stored. However, the present invention is not limited to this. In the case of the arbitrary user mode, setting values may not be stored for only some setting items.

  In this embodiment, the example in which the function setting unit is configured in the zoom demand instructing the electric driving of the zoom has been described. However, the present invention is not limited to this. It may be a focus demand instructing electric driving of the focus.

  In the present embodiment, the configuration in which the setting change is performed on the switch included in the demand by the function setting means provided in the demand has been described. However, the present invention is not limited to this. For example, it may be configured to change the setting of a switch of a demand by using a function setting unit provided in the lens apparatus.

  As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these embodiment, A various deformation | transformation and change are possible within the range of the summary.

DESCRIPTION OF SYMBOLS 101 Lens apparatus 102 Drive control apparatus 103,602 Seesaw switch (operation means)
104, 603 Return switch (operation means)
105,604 VTR switch (operating means)
106 Iris drive changeover switch (operation means)
110, 607 Display panel (function setting means)
112, 609 function setting switch (function setting means)

Claims (8)

A lens device comprising a movable optical member and connected to the camera device;
Driving means connected to the lens device and driving the movable optical member;
A return function for outputting a return signal to the camera device, a recording command function for instructing the camera device to start recording, a drive command function for instructing driving of the movable optical member, and an electric drive or manual operation of the movable optical member are switched. Control means having at least one of the drive switching functions;
The function of the control means is assigned as an initial setting, and operating means operated by a user;
A function operating means that is assigned to an arbitrary function of the control means and is operated by a user;
And function setting means for changing a setting of the function assigned to the operating means and said function operation means,
Mode switching means for switching between the first mode and the second mode;
Including
In the first mode, the function setting means is capable of changing the setting of function assignment of the control means to the operation means and the function operation means , and in the second mode, to the operation means. The function assignment setting change of the control means can not be performed, and the function assignment setting change of the control means can be changed with respect to the function operation means .
A lens system characterized by that. The lens system according to claim 1 , further comprising a storage unit that stores a function assigned to each of the operation units. 3. The lens system according to claim 2 , wherein in the second mode, the storage unit does not store a function assigned to the function operation unit. Setting value changing means for changing a setting value related to driving of the movable optical member;
The storage means stores a setting value related to driving of the movable optical member,
In the second mode, the storage means does not store a setting value related to driving of the movable optical member changed by the setting value changing means.
The lens system according to claim 2 .   5. The function setting unit according to claim 1, wherein, in the second mode, the function assignment setting of the control unit assigned to the operation unit as an initial setting cannot be changed. The lens system according to Item 1. 5. The lens according to claim 4 , wherein the setting value changed by the setting value changing unit includes at least one of a driving range of the movable optical member and a setting value of driving characteristics of the movable optical member. system. An operating device connected to the lens system and commanding driving of the movable optical member;
The operation device includes the operation means, the control means, the function setting means, and the mode switching means.
The lens system according to claim 1, wherein:   An imaging device comprising: the lens system according to any one of claims 1 to 7; and a camera device connected to the lens device of the lens system.

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