JP6185765B2 - Lens system and imaging system having the same - Google Patents

Description

  The present invention relates to a lens system, and more particularly, to a lens system including a lens device and an operation device for operating the lens device, and an imaging system having the lens system.

  A shooting system used for TV shooting is composed of a TV camera and a TV lens. TV lenses are roughly divided into a lens body and a drive unit, and the lens body has a photographing optical system and a manual ring for operating it. The drive unit includes a motor, a control board, and a CPU for electrically driving the manual ring, and a switch and an operation member for instructing electric control are provided on the exterior surface. In addition, a control function for electric control is added to the drive unit. For example, once an arbitrary zoom position is memorized, the preset function that drives the motor to the memorized position by pressing the switch, or the user assigns the preset function to an arbitrary switch among multiple switches on the drive unit. There are functions that can be used.

  These lens control functions (hereinafter referred to as lens control functions) can also be used when the operation device is connected to the drive unit and operated from the outside, and the user operability is improved by using it properly depending on the shooting application. . As the frequency of using electric control increases, the lens control function increases.

  With conventional TV lenses, it is possible to set multiple types of lens control function data (hereinafter referred to as setting data), and it is possible to set for each user so that it is possible to shoot with settings suitable for each user's preferences. I was trying.

  Patent Document 1 discloses a technique for classifying and holding a plurality of types of setting data into initial data that cannot be rewritten and a plurality of user data that can be rewritten based on the initial data. Patent Document 2 discloses a technique for selecting one of a plurality of types of characteristics related to lens control and setting the selected characteristics using a lens or an operation member.

JP 2004-297547 A JP 2001-004903 A

  However, in the related art disclosed in the above-described patent document, it is difficult for the user to switch the setting data during shooting as the number of setting data increases. Further, there are a plurality of signal types and types of operation devices such as analog demand and digital demand, and the operation device handled by the user is not necessarily compatible with setting data change from the operation device as disclosed in Patent Document 2.

  Furthermore, when an operation is performed from a wirelessly connectable operation device (hereinafter referred to as a wireless demand), there is a high possibility that a plurality of users (operation devices) exist for one lens, and depending on the user who operates the lens. It is necessary to switch to setting data adapted to the user's preference instantly during shooting.

  Therefore, an object of the present invention is to provide a lens system that can automatically switch a plurality of types of setting data related to lens control by connecting a controller (operation device).

In order to achieve the above object, the lens system of the present invention is used in a movable optical member, storage means for storing control setting information of the movable optical member, and control setting information stored in the storage means. A lens switching device for switching control setting information; and a control unit for controlling driving of the movable optical member based on a command signal and the control setting information; and for driving the movable optical member of the lens device. Operating means for outputting a command signal of the control unit, wherein the storage means stores a plurality of control setting information, and the setting switching means is used by the control means in accordance with identification information from the operating means. Effective control setting information to be selected is selected and set, and the plurality of control setting information is information including assignment of functions to switches .

  ADVANTAGE OF THE INVENTION According to this invention, the lens system which enabled the setting data regarding lens control to be switched automatically by connection of a controller (operation apparatus) can be provided.

It is a block diagram showing the structure of Example 1 of this invention. It is a flowchart at the time of the connection of the lens apparatus and operating device in Example 1 of this invention. It is a flowchart at the time of the connection of the lens apparatus and operating device in Example 2 of this invention. It is a block diagram showing the structure of Example 3 of this invention. It is a flowchart at the time of the connection of the lens apparatus and operating device in Example 3 of this invention. It is a block diagram showing the structure of Example 4 of this invention. It is a flowchart at the time of the connection of the wireless transmission unit and wireless reception unit in Example 4 of this invention. It is a flowchart at the time of the user setting of the lens apparatus in Example 4 of this invention.

  Hereinafter, embodiments of the lens system of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a block diagram showing the configuration of the lens system of the present invention.

The lens system according to the first embodiment of the present invention will be described below with reference to FIGS.
FIG. 1 is a functional block diagram of the lens system of the present embodiment. The lens system according to this embodiment includes a lens device 100 and an operation device 200 for operating the lens device 100. In FIG. 1, reference numeral 150 denotes an image pickup apparatus that can be connected to the lens apparatus 100 of the lens system of the present invention. The image pickup apparatus 151 includes an image pickup element 151 that receives subject light from the lens apparatus 100, together with the lens system of the present invention. An imaging system can be configured.

  The lens apparatus 100 includes a focus lens 101, a zoom lens 102, an iris 103, which are movable optical members, a calculation unit 110, a storage unit 111, a communication unit 112, and a user setting unit 113. The focus lens 101 is a lens that changes the object distance, the zoom lens 102 is a lens that changes the focal distance, and the iris 103 is a diaphragm unit that adjusts the amount of light.

  The focus driving unit 104 is a driving unit that drives the focus lens 101 in the optical axis direction, and the position of the focus lens 101 in the optical axis direction is detected by the focus position detection unit 105. The zoom drive unit 106 is a drive unit that drives the zoom lens 102 in the optical axis direction, and the zoom position detection unit 107 detects the position of the zoom lens 102 in the optical axis direction. The iris driving unit 108 is a driving unit that adjusts the opening amount of the iris 103, and the state of the opening amount of the iris 103 is detected by the iris position detecting unit 109. The focus position detection unit 105, the zoom position detection unit 107, and the iris position detection unit 109 are encoders. The encoder of the zoom position detection unit 107 outputs a pulse signal to the calculation unit 110 as the zoom lens 102 is driven.

  The calculation unit (control unit) 110 outputs a drive signal to the focus drive unit 104 based on a command signal from the operation device 200 to drive the focus lens 101. In addition, a drive signal is output to the zoom drive unit 106 to drive the zoom lens 102. In addition, a drive signal is output to the iris drive unit 108 to drive the iris 103.

  Details of the data stored in the storage unit 111 will be described later. The communication unit 112 communicates with the controller device 200. When a setting data switching request is input from the operation device 200 via the communication unit 112, the user setting unit (setting switching unit) 113 switches the setting data in the storage unit 111.

  The operation device 200 includes an operation device communication unit 201, an operation device storage unit 202, a switch SW-A 203, and a switch SW-B 204. The operation device communication unit 201 communicates with the lens device 100. The operating device storage unit 202 is a memory. Details of data stored in the operation device storage unit 202 will be described later. The switch SW-A 203 and the switch SW-B 204 are switches arranged outside the operation device 200 and notify the operation device communication unit 201 of an ON signal when pressed by the user.

  Table 1 shows setting data stored in the storage unit 111 of the lens apparatus 100.

  As exemplified in Table 1, the function assigned to the switch SW-A203, the function assigned to the switch SW-B204, the focus operation vs. output characteristic (F curve) indicating the characteristic of the output (focus control signal) with respect to the focus operation amount, zoom Zoom operation vs. output characteristics (Z curve) indicating the output (zoom control signal) characteristics with respect to the operation amount, iris operation vs. output characteristics indicating the output (iris control signal) characteristics relative to the iris operation amount, zoom shot position (zoom) ) And focus shot positions (focus preset positions) can be set for each user number (setting ID). Table 1 shows a state where the user number “01” is valid.

  In this embodiment, communication data shown in Table 2 is transmitted from the operating device 200 to the lens device 100 in order to specify setting data used when operating the lens device 100 by the operating device 200.

  The communication data shown in Table 2 includes a connection command and a user number as identification information. The connection command is a command that is transmitted when the controller device 200 is connected to the lens device 100. The user number is a user number that requests the lens apparatus 100 to switch the user number set as valid.

  In the controller device storage unit 202 of the controller device 200, the only arbitrary user number set and recognized in Table 1 is set and stored in advance. When the lens device 100 and the operation device 200 are connected, the operation device communication unit 201 transmits communication data in which a user number is added to the connection command to the communication unit 112. In the case of Table 2, it is a switch request to the user No. “02”.

  FIG. 2 is a flowchart showing processing in the lens apparatus 100 when the lens apparatus 100 and the operation apparatus 200 are connected.

When the operation apparatus 200 is connected in S401, the process proceeds to S402.
In S402, it is determined whether the connection with the controller device 200 is completed. If completed, the process proceeds to S403, and if not, the process proceeds to S402.
In S403, it is determined whether or not a user number has been received from the controller device 200. If received, the process proceeds to S404, and if not received, the process proceeds to S405.
In S404, the user No. received in S403 is switched to, and the process proceeds to S406.
In S405, the storage unit 111 switches to the set value set as the initial value, and the process proceeds to S406.
In S406, the connection process is completed.

  As described above, when the lens apparatus 100 and the operation apparatus 200 are connected, the user No. is transmitted from the operation apparatus 200, so that the setting data to be switched by the user operating the lens apparatus 100 can be switched from the operation apparatus 200. In this embodiment, when the user number is not received, the setting is switched to the initial setting set in advance in the lens apparatus 100, but the setting data may not be changed. Moreover, although the setting data of Table 1 was used as an example, it is not limited to this, and various kinds of data may be possessed. Further, the operation device 200 may be provided with means for selecting the user No. of the lens device 100, and the selected user No. may be transmitted as a command.

  A lens system according to a second embodiment of the present invention will be described below with reference to FIGS. In the present embodiment, the setting data in Table 1 is stored in the storage unit 111 as in the first embodiment. The configuration of the present embodiment is different from the first embodiment in that user setting data in which the identification code of the operation device 200 is associated with the user number is stored in the user setting unit 113. The identification code is a code number for identifying the controller device 200, and is uniquely set for each controller device. In this embodiment, the identification code (operation device identification information) of the operation device 200 is “bb”. The operation device storage unit 202 is different from the first embodiment in that the user number of the lens device 100 is not stored (it is not necessary to store the user number).

  In this embodiment, communication data shown in Table 3 is transmitted from the operating device 200 to the lens device 100 in order to specify setting data used when operating the lens device 100 by the operating device 200. The communication data of the present embodiment is composed of a connection command and an identification code as identification information.

  Table 4 shows an identification code-user No correspondence table held in the user setting unit 113. Thus, the user No. is associated with the identification code of the controller device, and the identification code “bb” of the controller device 200 is registered so that the user No. “02” corresponds.

  FIG. 3 is a flowchart of the lens device 100 when the lens device 100 and the operation device 200 are connected.

When the lens apparatus 100 is connected to the operation apparatus 200 in S601, the process proceeds to S602.
In S602, it is determined whether or not the connection with the controller device 200 is completed. If completed, the process proceeds to S603, and if not, the process proceeds to S602.
In S603, it is determined whether or not an identification code has been received from the controller device 200. If so, the process proceeds to S604, and if not, the process proceeds to S606.
In step S604, the user number stored in advance is read from the user setting unit 113, and the process proceeds to step S605.
In step S605, the user number read in step S604 is switched to and the process proceeds to step S607.
In S606, the setting is switched to the initial setting and the process proceeds to S607.
In S607, the connection process is completed.

  As described above, by registering the identification code of the operation device 200 and the user number in the lens device 100 in advance, it is possible to switch to a setting suitable for the user's intention without storing the user No data in the operation device.

  A lens system according to a third embodiment of the present invention will be described below with reference to FIGS. In this embodiment, the communication data shown in Table 3 is used as communication data transmitted from the operation device 200 to the lens device 100, and the user setting data shown in Table 4 is stored in the user setting unit 113 of the lens device 100. This is the same as in the second embodiment.

  FIG. 4 is a functional block diagram of the photographing system of this embodiment. The lens system according to the present exemplary embodiment includes a lens device 100, a zoom operation device 300 for operating the lens device 100, and a focus operation device 400. The zoom operation device 300 includes a zoom operation device communication unit 301, a zoom operation device storage unit 302, a zoom operation switch SW-A303, and a zoom operation switch SW-B304. The focus operation device 400 includes a focus operation device communication unit 401, a focus operation device storage unit 402, a focus operation switch SW-A403, and a focus operation switch SW-B404. Reference numeral 150 in FIG. 4 denotes an image pickup apparatus that can be connected to the lens apparatus 100 of the lens system of the present invention. The image pickup apparatus 151 includes an image pickup element 151 that receives subject light from the lens apparatus 100, and together with the lens system of the present invention. An imaging system can be configured.

  Table 5 shows setting data possessed by the storage unit 111 of the lens apparatus 100 used in this embodiment.

  The difference between the setting data stored in the storage unit 111 of the present embodiment and the setting data shown in Table 1 is that the user number to be enabled (set), that is, the setting, depending on the operation signal from which operation device. The point is that the set of control setting information to be changed is changed. In the configuration of the present embodiment, different user numbers are effectively used when the operation unit of the lens apparatus body is directly operated and when operated from an external operation device such as the zoom operation device 300 or the focus operation device 400. It is a point to do. As shown in Table 5, as the user number, “02” is used when performing a zoom operation from the zoom operation device 300, “03” is used when performing a focus operation from the focus operation device 400, and “01” is used in other cases. .

  That is, when the zoom operation is performed from the zoom operation device 300, the user No. “02” is used, but among the control setting information set in advance for the user No. “02”, only the control setting information related to the zoom operation is used for the zoom operation. It applies to. Therefore, as shown in Table 5, various control setting information not related to the zoom operation described in the SW-A and F-curve columns is not used. In addition, when the focus operation is performed from the focus operation device 400, the user No. “03” is used. Of the control setting information set in advance for the user No. “03”, only the control setting information related to the focus operation is used for the focus operation. It applies to. Therefore, as shown in Table 5, control setting information not related to the focus operation described in the column of SW-A, Z shot position is not used.

  As described above, in the lens system of this embodiment, setting data can be set for each operation target (zoom, focus, iris, etc.). FIG. 5 is a flowchart of the lens apparatus 100 when the lens apparatus 100, the zoom operation apparatus 300, and the focus operation apparatus 400 are connected.

When the lens apparatus 100 is connected to the zoom operation apparatus 300 and the focus operation apparatus 400 in S901, the process proceeds to S902.
In S902, it is determined whether or not the connection with the zoom operation device 300 and the focus operation device 400 is completed. If completed, the process proceeds to S903, and if not, the process proceeds to S902.
In S903, it is determined whether an identification code has been received from the zoom operation device 300 and the focus operation device 400. If received, the process proceeds to S904, and if not received, the process proceeds to S906.
In S904, the operation target is determined from the identification code, the user number stored in advance is read from the user setting unit 113, and the process proceeds to S905.
In step S905, the user number corresponding to the determined operation source is set to the user number read in step S904, and the process advances to step S907.
In step S906, the user number corresponding to the operation source is set to the initial setting, and the process advances to step S907.
In S907, the connection process is completed.

  As described above, by making it possible to set the data that can be set for each user possessed by the lens apparatus 100 according to the operation target, it is possible to switch the setting to suit the user's preference regardless of the operation device.

  In this embodiment, the configuration in which two user numbers that are valid for the operation target (zoom, focus) are set is illustrated. However, an arbitrary user No. among user Nos. (Setting data) possessed in advance may be assigned to the operation of the operation target from the operating means of the lens apparatus main body and the operating device as an external device.

  For example, when one controller device commands zoom, focus, and iris operations, different user numbers “01”, “02”, and “04” may be assigned to the zoom, focus, and iris operations, respectively. Further, when the first operating device performs a zoom operation and the second operating device performs a focus operation and an iris operation, the user No “01” is assigned to the zoom operation of the first operating device, and the focus operation of the second operating device. The user No. “01” may be assigned to the user, and the user No. “02” may be assigned to the iris operation of the second operating device. In the lens system of the present embodiment, the user number of the setting data applied to each operation target operated from the operation device can be set independently. Therefore, when the operating device operates only one operation target, the identification number for identifying the operating device is only output when the operating device is connected to the lens device, and the user number of the setting data applied in the lens device is specified. be able to. Further, when the operation device can operate a plurality of operation objects, it is applied to the lens device by outputting header information indicating the operation object as identification information when outputting a command signal from the operation device to the lens device. The user number of the setting data may be specified.

  A lens system according to the fourth embodiment of the present invention will be described below with reference to FIGS. In the present embodiment, the setting data in Table 1 is stored in the storage unit 111 as in the first and second embodiments.

  FIG. 6 is a functional block diagram of the lens system of the present embodiment. The lens system of this embodiment includes a lens device 100, an operation device 200, a wireless transmission unit (operation side wireless communication means) 500, and a wireless reception unit (lens side wireless communication means) 600. In the present embodiment, the command signal of the controller device 200 is transmitted and received between the wireless transmission unit 500 and the wireless reception unit 600 by wireless communication. Reference numeral 150 in FIG. 6 denotes an image pickup apparatus that can be connected to the lens apparatus 100 of the lens system of the present invention. The image pickup apparatus 151 includes an image pickup element 151 that receives subject light from the lens apparatus 100, and together with the lens system of the present invention. An imaging system can be configured.

  The lens device 100 differs from the configuration of the first embodiment illustrated in FIG. 1 in that the user setting unit 113 includes a time measurement unit. The time measuring means measures the time that is valid for each user No.

  The wireless transmission unit 500 is connected to the operation device communication unit 201 of the operation device 200, and the wireless reception unit 600 is connected to the communication unit 112 of the lens device 100.

  The wireless transmission unit 500 includes a wireless transmission communication unit 501. When connecting to the wireless reception unit 600, the wireless transmission unit 500 transmits a unique connection address (identification information) that is an ID of a transmission source (wireless transmission unit 500). Here, the connection address of the wireless transmission unit 500 is “zzz”. In addition, upon receiving a command from the controller device communication unit 201, the wireless transmission communication unit 501 adds reception data to the connection address (“zzz”) and transmits the communication data to the wireless reception unit 600.

  The wireless reception unit 600 includes a wireless reception communication unit 601 and a wireless reception storage unit 602. When receiving the communication data from the wireless transmission unit 500, the wireless reception communication unit 601 transmits the communication data to the communication unit 112. The wireless reception storage unit 602 is a memory and stores a connection address-user No correspondence table shown in Table 6.

  The connection address-user No correspondence table in Table 6 registers the connection address of the wireless transmission unit and the user No in association with each other. This relationship is set in advance by the user.

  FIG. 7 is a flowchart of the wireless reception unit 600 when the lens device 100 and the operation device 200 are connected via the wireless transmission unit 500 and the wireless reception unit 600.

If there is a connection request from the wireless transmission communication unit 501 in S1101, the process proceeds to S1102.
In S1102, it is determined whether or not the connection with the wireless transmission unit is completed. If the connection is completed, the process proceeds to S1103. Otherwise, the process proceeds to S1102.
In S1103, based on the connection address of the wireless transmission unit 500, it is determined whether or not there is a user registration associated with the received connection address in the connection address-user No correspondence table stored in the wireless reception storage unit 602. If there is user registration, the process proceeds to S1104. Otherwise, the process proceeds to S1106.
In S1104, the user number associated with the connection address received from the wireless reception storage unit 602 is read, and the process proceeds to S1105.
In S1105, the user number read in S1104 is transmitted to the communication unit 112, and the process proceeds to S1107.
In S1106, the received connection address is transmitted to the communication unit 112 indicating that the user is not registered, and the process proceeds to S1107.
In S1107, the connection process is completed.

  FIG. 8 is a flowchart of the lens apparatus 100 after the connection between the lens apparatus 100 and the operation apparatus 200 is completed according to the flowchart of FIG.

When the wireless connection with the controller device 200 is completed in S1201, the process proceeds to S1202.
In S1202, it is determined whether or not the user number is input from the wireless reception unit 600. If it is input, the process proceeds to S1203, and if not, the process proceeds to S1205.
In S1203, the user number received in S1202 is read, and the process proceeds to S1204.
In step S1204, the user number read in step S1203 is switched to and the process proceeds to step S1207.
In S1205, the user No. that has been set (selected) for the longest time is read from the time measurement means of the user setting unit 113, and the process proceeds to S1206. That is, when the setting ID based on the identification information from the controller device 200 cannot be specified, the setting is changed to the user No (setting ID) having the longest time measured by the time measuring unit.
In step S1206, the user number read in step S1205 is switched to, and the process proceeds to step S1207.
In step S1207, the user setting process is completed.

  As described above, the setting data can be automatically switched even when the operation device connected to the lens device is wirelessly connected.

  As described above, by providing the time measuring means, the initial value of the setting data when the identification information is not sent to the lens device, such as in the case of an operating device that does not have the identification information sending function, is most suitable for the operation of the lens device. The frequently used setting data (user No.) can be used.

  In this embodiment, the setting data is switched in the lens apparatus 100 by transmitting the connection address on the wireless transmission side to the wireless reception side. That is, a correspondence table between connection addresses and user numbers is provided in the wireless reception storage unit 602 in the wireless reception unit 600, and a user number is selected based on the correspondence table from the received connection addresses (identification information). Is output. However, the present invention is not limited to this, and communication data shown in Table 7 or Table 8 below may be used.

  Like the communication data in Table 7, together with the connection address that is the ID of the wireless transmission communication unit 501, the user number set in the controller device 200 is wirelessly transmitted from the wireless transmission communication unit 501 to the wireless reception communication unit 601 as identification information. Sent. The user number is output from the wireless reception communication unit 601 to the lens apparatus 100. The user setting unit 113 of the lens apparatus 100 may switch to corresponding setting data.

  Further, as in the communication data of Table 8, together with the connection address that is the ID of the wireless transmission communication unit 501, the identification code of the controller device 200 is wirelessly transmitted from the wireless transmission communication unit 501 to the wireless reception communication unit 601 as identification information. . In the wireless reception storage unit 602, a correspondence table between identification codes and user numbers is set and stored in advance, and the user numbers are selected from the identification codes based on the correspondence tables and output to the lens device 100. The setting data may be switched with.

  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.

1 111 storage unit 2 112 communication unit 3 113 user setting unit 4 602 wireless reception storage unit

Claims (11)

A movable optical member; storage means for storing control setting information of the movable optical member; setting switching means for switching control setting information used in the control setting information stored in the storage means; a command signal and the control Control means for controlling the driving of the movable optical member based on setting information, and a lens device,
An operation means for outputting a command signal for driving the movable optical member of the lens device;
Have
The storage means stores a plurality of control setting information,
The setting switching means selects and sets effective control setting information used by the control means according to identification information from the operation means ,
The plurality of control setting information is information including assignment of functions to switches ,
A lens system characterized by that.   2. The lens system according to claim 1, wherein the assignment of the function to the switch is a setting of a driving target operated by the switch. The identification information, the plurality of the setting ID for uniquely assigned to each control setting information, the lens system according to claim 1 or 2, characterized in that. The identification information is operation device identification information for identifying the operation means,
The setting switching unit has a correspondence table that stores correspondence between setting IDs uniquely assigned to the plurality of control setting information and the operating device identification information, and corresponds to the input operating device identification information. Selecting a setting ID based on the correspondence table, and setting valid control setting information used by the control means;
The lens system according to claim 1.   The lens system according to claim 1, wherein the operation unit is an operation device connected to the lens device. The operation means includes an operation unit of the lens device main body, and an operation device connected to the lens device,
The setting switching unit selects the control setting information independently for the operation unit and the operation device according to the identification information, and sets effective control setting information used by the control unit.
The lens system according to claim 5 . The lens system according to claim 6 , wherein the operation unit includes an operation unit of the lens device main body and a plurality of operation devices connected to the lens device. The operation device includes an operation side wireless communication unit that is a wireless communication unit, the lens device includes a lens side wireless communication unit that is a wireless communication unit, and the operation device and the lens device receive a command signal by wireless communication. Send and receive,
The identification information is a wireless communication connection address of the operation side wireless communication means,
The setting switching means has a correspondence table for storing a correspondence between a setting ID uniquely assigned to each of the plurality of control setting information and the connection address, and the setting ID corresponding to the input connection address is associated with the correspondence. Select based on a table and set effective control setting information used by the control means,
The lens system according to any one of claims 5 to 7 , wherein: The operation device includes an operation side wireless communication unit that is a wireless communication unit, the lens device includes a lens side wireless communication unit that is a wireless communication unit, and the operation device and the lens device receive a command signal by wireless communication. Send and receive,
The identification information is a wireless communication connection address of the operation side wireless communication means, and a setting ID uniquely assigned to each of the plurality of control setting information.
The lens system according to any one of claims 5 to 7 , wherein: The lens device has time measuring means for measuring the time set for each setting ID,
When the setting switching unit cannot identify the setting ID by the identification information from the operating device, the setting switching unit changes the setting ID to the longest time measured by the time measuring unit.
The lens system according to claim 8 or 9 , wherein   An imaging system comprising: the lens system according to any one of claims 1 to 10; and an imaging element that receives subject light from the lens system.

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