WO2018179319A1 - Camera device and lens device - Google Patents

Camera device and lens device Download PDF

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Publication number
WO2018179319A1
WO2018179319A1 PCT/JP2017/013563 JP2017013563W WO2018179319A1 WO 2018179319 A1 WO2018179319 A1 WO 2018179319A1 JP 2017013563 W JP2017013563 W JP 2017013563W WO 2018179319 A1 WO2018179319 A1 WO 2018179319A1
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WO
WIPO (PCT)
Prior art keywords
lens
iris
connector
pin
connection terminals
Prior art date
Application number
PCT/JP2017/013563
Other languages
French (fr)
Japanese (ja)
Inventor
立奇 賀来
恒美 新倉
Original Assignee
Cbc株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Cbc株式会社 filed Critical Cbc株式会社
Priority to PCT/JP2017/013563 priority Critical patent/WO2018179319A1/en
Priority to TW107105311A priority patent/TW201901277A/en
Publication of WO2018179319A1 publication Critical patent/WO2018179319A1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
    • G03B17/14—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets interchangeably
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/02—Diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules

Definitions

  • the present invention relates to a camera device that is used by being mounted with a lens device having an automatic iris function, and a lens device that is mounted on the camera device.
  • IP cameras network cameras
  • CCTV Cell-circuit Television
  • FA factory automation
  • a compatible lens mount such as a C mount or a CS mount
  • a single focus lens or a variable focus lens such as a zoom lens or a varifocal lens
  • Those configured to be worn are known.
  • a lens device mounted on the lens mount of the camera device there is one configured with an automatic iris function.
  • a lens device having an automatic iris function there are known a video iris lens that controls the iris by the video iris control method and a DC iris lens that performs the iris control by the DC iris control method.
  • a so-called P-iris lens that enables control is proposed (see, for example, Patent Document 1).
  • an intelligent CCTV camera lens hereinafter referred to as an “i-CS lens” that can realize not only aperture control but also zoom and focus with high-precision control through bidirectional communication between the camera and the lens. (Also referred to as “Patent Document 2”).
  • JP2011-164614A Japanese Patent No. 5893746
  • a camera device to which a lens device having an automatic iris function is mounted includes a connector for electrically connecting the camera and the lens, and a control instruction (control signal) relating to the iris of the lens device is given through the connector. It is like that. Therefore, when the camera device is a single-function product that supports only one type of lens device, the corresponding type of lens device needs to be electrically connected through a connector. Further, if the camera device is compatible with a plurality of types of lens devices, it is necessary to perform switch switching on the camera device side so as to be compatible with the connected types of lens devices.
  • the connector shape is the same for a video iris lens and a DC iris lens.
  • the P-iris lens and the i-CS lens there are some in which a concave and convex portion for preventing erroneous insertion is provided in the connector housing, but this is not necessarily applied to all.
  • an object of the present invention is to provide a camera device and a lens device that can accurately and easily determine the lens type.
  • a camera device is provided.
  • a lens device mounted on a lens mount of a camera device An automatic iris function that adjusts the iris opening amount by motor driving in accordance with a control instruction from the camera device side;
  • the status for the other plurality of connection terminals is configured to be unique to the lens type having the automatic aperture function.
  • a lens device is provided.
  • the camera system includes a lens device 1 and a camera device 2.
  • the lens device 1 is used by being mounted on the camera device 2. If the lens device 1 can be attached to the lens mount 2a included in the camera device 2 (that is, compatible with compatibility), a single focus lens or a variable focus lens (zoom lens or varifocal lens). Etc.).
  • the lens apparatus 1 includes an iris adjustment unit 1a for realizing an automatic iris (auto iris) function.
  • the iris adjusting unit 1a adjusts the diaphragm of the lens device 1 (that is, adjusts the amount of light transmitted through the lens device 1), and is configured to be linearly slidable on a substrate having an opening that forms an optical path.
  • the diaphragm blades are provided, and the amount of light is adjusted by controlling the sliding amount of the diaphragm blades by driving the motor.
  • the iris blades of the iris adjusting unit 1a are two, but the number is not limited to this, and may be five or seven.
  • the drive control of the diaphragm blades is not necessarily performed by motor driving, and may be performed by, for example, galvanometer driving.
  • the control method for the iris adjustment unit 1a may be any of video iris, DC iris, P iris, or i-CS.
  • video iris control system power and a video signal are supplied from the camera device 2 side, and the lens device 1 side controls a motor drive signal or a galvanometer drive signal based on the video signal, thereby adjusting the aperture. It is a method to do.
  • DC iris control method an iris control signal is generated from a video signal on the camera device 2 side, and the control signal is supplied to the lens device 1 side to adjust the iris.
  • the P-iris control system is a system that enables highly precise aperture control by a stepping motor and enables accurate control of light amount adjustment (that is, adjustment of the size of the opening).
  • the i-CS control method is an intelligent control method that enables high-precision control through bidirectional communication between the camera and the lens. That is, the lens device 1 having the automatic iris function may be a video iris lens, a DC iris lens, a P iris lens, or an i-CS lens.
  • the camera device 2 is used as, for example, a camera device for surveillance or industrial use, and includes an IP camera, a CCTV camera, an FA camera, and the like. In the following description, a case where the camera device 2 is a CCTV camera is taken as an example, but the present invention is not limited to this.
  • the camera device 2 includes a lens mount 2a such as a C mount or CS mount to which the lens device 1 is attached, and a CCD (Charge Coupled Device) that captures an optical image obtained through the lens device 1 attached to the lens mount 2a.
  • a lens mount 2a such as a C mount or CS mount to which the lens device 1 is attached
  • CCD Charge Coupled Device
  • Sensor and imaging element 2b such as a CMOS (Complementary Metal Metal Oxide Semiconductor) sensor.
  • CMOS Complementary Metal Metal Oxide Semiconductor
  • the camera device 2 includes a connector 2c that is electrically connected to the lens device 1 mounted on the lens mount 2a, and a lens determination unit 2d that determines the type of the lens device 1 that is electrically connected to the connector 2c. It is equipped with. The specific configurations of the connector 2c and the lens determination unit 2d will be described later in detail.
  • the camera device 2 includes a central control unit 2e made of a control board or the like having a function as a computer in the camera device 2.
  • the central control unit 2e performs overall operation control of the camera device 2. It is assumed that the operation control performed by the central control unit 2e includes operation control for the lens device 1 mounted on the lens mount 2a, particularly operation control for the iris adjustment unit 1a provided in the lens device 1. That is, the central control unit 2e includes an iris circuit 2f that performs operation control on the iris adjustment unit 1a.
  • the iris circuit 2f can selectively correspond to each of a video iris lens, a DC iris lens, a P iris lens, and an i-CS lens.
  • a function as a video iris circuit that performs aperture control by a video iris control system a function as a DC iris circuit that performs aperture control by a DC iris control system, and an aperture control by a P iris control system
  • a function as a P-iris circuit that performs the above and a function as an i-CS lens circuit that performs aperture control by the i-CS control method and to switch these functions for use. .
  • the iris circuit 2f is not limited to such a configuration, and is configured to correspond to any one of a video iris lens, a DC iris lens, a P iris lens, or an i-CS lens. May be. In other words, the iris circuit 2f only needs to be configured to perform aperture control for at least one of a video iris lens, a DC iris lens, a P iris lens, or an i-CS lens.
  • the camera device 2 includes a switching circuit 2g.
  • the switching circuit 2g performs switching of each function when the iris circuit 2f is configured to switch and use the above functions as appropriate.
  • the switching circuit 2g is configured so that the function when the iris circuit 2f performs aperture control is adapted to the lens type based on the determination result of the lens type in the lens determination unit 2d. It is designed to switch.
  • the specific configuration of the switching circuit 2g is not particularly limited as long as it can cope with the function switching in the iris circuit 2f.
  • the connector 2c is fitted with a connector plug or a connector socket disposed on an end edge of an electric cable extending from the lens device 1 mounted on the lens mount 2a, whereby the electrical connection between the lens device 1 and the camera device 2 is established. Establish a connection. With this electrical connection, the iris circuit 2f can perform operation control on the iris adjustment unit 1a.
  • the connector 2 c is configured to have a plurality of connection terminals in accordance with, for example, the standard of EIAJ (Electronic Industries Association of Japan). Yes.
  • the connector 2c has four pin-like connection terminals (hereinafter also simply referred to as “connection pins”) 11 to 14 as a plurality of connection terminals.
  • connection pins include a first connection pin (hereinafter also referred to as “first pin”) 11, a second connection pin (hereinafter also referred to as “second pin”) 12, and a third.
  • Connection pins hereinafter also referred to as “third pins” 13 and fourth connection pins (hereinafter also referred to as “fourth pins”) 14, which are arranged in a predetermined order.
  • the connector 2c having such a configuration is mainly adapted to a video iris lens or a DC iris lens.
  • the connector 2c is not limited to the configuration shown in FIG. That is, if the connector 2c has the first pin 11 to the fourth pin 14 arranged in a predetermined order, the connector 2c is added to the first pin 11 to the fourth pin 14 as shown in FIG. Thus, a groove 15 or the like for preventing erroneous insertion may be formed.
  • the connector 2c having such a configuration is mainly adapted to a P iris lens.
  • the connector 2c has the first pin 11 to the fourth pin 14 arranged in a predetermined order, the connector 2c can be added to the first pin 11 to the fourth pin 14 as shown in FIG. Further, it may be configured to have a fifth connection pin (hereinafter also referred to as “fifth pin”) 16.
  • the connector 2c having such a configuration is mainly compatible with an i-CS lens.
  • the connector 2c having each configuration shown in FIGS. 2A to 2C has a connection terminal corresponding to each of the first pin 11 to the fourth pin 14 in any configuration.
  • a connector plug or connector socket having the same shape can be fitted.
  • the lens discriminating unit 2d constitutes a part of the central control unit 2e, and discriminates the type of the lens device 1 electrically connected to the connector 2c. Specifically, the lens determination unit 2d determines whether the lens device 1 electrically connected to the connector 2c is a video iris lens, a DC iris lens, a P iris lens, or an i-CS lens. It has become.
  • the lens discrimination unit 2d is configured by an electric circuit that realizes the functions described below. That is, the lens determination unit 2d can supply power (for example, voltage application of 5V) to one of the first pin 11 to the fourth pin 14, specifically, the first pin 11 in the connector 2c. In addition, another one of the first pin 11 to the fourth pin 14, specifically, the third pin 13 can be grounded to the ground (GND). Furthermore, the lens determination unit 2d is configured for each of the other connection pins of the connector 2c when the power is supplied to the first pin 11, specifically, the second pin 12 and the fourth pin 14. It is configured to detect whether the status is a high state (for example, a voltage value state equal to or higher than a predetermined threshold) or a low state (for example, a voltage value state lower than the predetermined threshold value).
  • a high state for example, a voltage value state equal to or higher than a predetermined threshold
  • a low state for example, a voltage value state lower than the predetermined threshold value
  • the lens device 1 that is electrically connected to the connector 2c has a lens device 1 that is a video iris lens, a DC iris lens, a P iris lens, or an i-CS.
  • the configuration of the electric circuit differs depending on whether the lens is used. Therefore, the statuses of the second pin 12 and the fourth pin 14 when the lens determination unit 2 d supplies power to the first pin 11 are unique for each type of lens device 1. Using this, the lens determination unit 2d determines the type of the lens device 1 that is electrically connected to the connector 2c.
  • the lens discriminating unit 2d is based on a preset discrimination table (see FIG. 3E), and the second pin 12 and the fourth pin 14 when the first pin 11 is supplied with power. If the status detection results are all in the low state (hereinafter also simply referred to as “L”), it is determined that the type of the lens device 1 connected to the connector 2c is a video iris lens (FIG. 3). (See (a) and (e)). In addition, the lens determination unit 2d determines that the status detection result of the second pin 12 is in a high state (hereinafter, simply “H”) for the second pin 12 and the fourth pin 14 when power is supplied to the first pin 11.
  • H high state
  • the lens determination unit 2d has a status detection result of the second pin 12 of L for the second pin 12 and the fourth pin 14 when power is supplied to the first pin 11, and the fourth pin 14 If the status detection result is H, it is determined that the type of the lens device 1 connected to the connector 2c is a P-iris lens (see FIGS. 3C and 3E). Further, the lens determination unit 2d is connected to the connector 2c if the status detection results of the second pin 12 and the fourth pin 14 when the power is supplied to the first pin 11 are both H. It is determined that the type of the lens device 1 is an i-CS lens (see FIGS. 3D and 3E).
  • the lens determination unit 2d determines the type of the lens device 1 connected to the connector 2c.
  • a processing procedure when the lens determination unit 2d in the camera device 2 determines the type of the lens device 1 will be specifically described.
  • the iris circuit 2f in the camera device 2 is configured to be selectively compatible with each of a video iris lens, a DC iris lens, a P iris lens, and an i-CS lens.
  • the lens device 1 is mounted on the lens mount 1a of the camera device 2, and the lens device 1 and the camera device 2 are electrically connected via the connector 2c (step 101, Hereinafter, the step is abbreviated as “S”.)
  • the lens discriminating unit 2d of the camera device 2 is connected to the lens device 1 side through the connector 2c. Power is supplied to the first pin 11 and the third pin 13 of the connector 2c is grounded to GND (S103).
  • the lens determination unit 2d reads the status on the lens device 1 side through the connector 2c (S104). Specifically, the lens determination unit 2d reads and detects the statuses of the second pin 12 and the fourth pin 14 when power is supplied to the first pin 11 of the connector 2c, and each status is H. Whether it is L or L is detected (S105).
  • the lens determination unit 2d indicates that the type of the lens device 1 connected to the connector 2c is a video iris lens. Determine. Then, the lens determination unit 2d notifies the determination result to the switching circuit 2g. In response to this, the switching circuit 2g switches the iris circuit 2f so that the function when the iris circuit 2f performs aperture control on the lens apparatus 1 is a function as a video iris circuit (S106). Thereby, the iris circuit 2 f can perform aperture control on the lens device 1 by a video iris control method suitable for the type of the lens device 1.
  • the lens determination unit 2d determines the type of the lens device 1 connected to the connector 2c. Is a DC iris lens. Then, the lens determination unit 2d notifies the determination result to the switching circuit 2g. In response to this, the switching circuit 2g switches the iris circuit 2f so that the function when the iris circuit 2f performs aperture control on the lens device 1 is a function as a DC iris circuit (S107). Thereby, the iris circuit 2 f can perform aperture control on the lens device 1 by a DC iris control method suitable for the type of the lens device 1.
  • the lens determination unit 2d determines the type of the lens device 1 connected to the connector 2c. Is a P-iris lens. Then, the lens determination unit 2d notifies the determination result to the switching circuit 2g. In response to this, the switching circuit 2g switches the iris circuit 2f so that the function when the iris circuit 2f performs aperture control on the lens device 1 is the function as the P iris circuit (S108). Thereby, the iris circuit 2 f can perform aperture control on the lens device 1 by the P iris control method suitable for the type of the lens device 1.
  • the lens determination unit 2d determines that the type of the lens device 1 connected to the connector 2c is an i-CS lens. Determine. Then, the lens determination unit 2d notifies the determination result to the switching circuit 2g. In response to this, the switching circuit 2g switches the iris circuit 2f so that the function when the iris circuit 2f performs aperture control on the lens device 1 is the function of the i-CS lens circuit (S109). . As a result, the iris circuit 2 f can perform aperture control on the lens device 1 by an i-CS control method suitable for the type of the lens device 1.
  • a plurality of types of aperture control methods that can be handled by the iris circuit 2f are prepared in advance, and the iris circuit 2f controls the aperture based on the determination result of the lens type in the lens determination unit 2d.
  • the function for performing the above is automatically switched to a function suitable for the type of the lens device 1.
  • the camera device 2 can operate the lens device 1 correctly without the user of the camera system being aware of the type of the lens device 1.
  • the camera device 2 ends the above-described series of lens type determination processing by the lens determination unit 2d (S110).
  • the imaging device 2b in the camera device 2 performs imaging of an optical image obtained through the lens device 1 while performing aperture control according to a method suitable for the type of the lens device 1. become.
  • a modification of the processing procedure when the lens determination unit 2d determines the type of the lens device 1 will be described.
  • the iris circuit 2f in the camera device 2 is configured to correspond to any one of a video iris lens, a DC iris lens, a P iris lens, or an i-CS lens will be described as an example.
  • the lens determination unit 2d obtains the status detection results for the second pin 12 and the fourth pin 14 when power is supplied to the first pin 11 of the connector 2c. Up to this point, processing is performed in the same manner as in the above-described processing procedure (see S101 to S105 in FIG. 4). However, in the case of such a configuration, unlike the above-described processing procedure, it is possible to perform function switching such that the iris circuit 2f functions as a video iris circuit, a DC iris circuit, a P iris circuit, or an i-CS lens circuit. Can not. Therefore, in the case of such a configuration, the lens determination unit 2d performs the following processing operation.
  • the lens determining unit 2d determines the type of the lens device 1 based on the status detection results for the second pin 12 and the fourth pin 14, the determined lens type is an aperture control method by the iris circuit 2f of the camera device 2. It is determined whether or not it matches the above. This determination may be made based on information related to the aperture control method held on the camera device 2 side, for example.
  • the lens discrimination section 2d ends the lens type discrimination process.
  • the lens determining unit 2d determines whether the lens type matches the iris control method of the iris circuit 2f, the type of the mounted lens apparatus 1 is not compatible with the iris circuit 2f, so the lens determining unit 2d
  • the determination result is output to a monitor (not shown) of the camera device 2 or an external device (not shown) connected to the camera device 2 to notify the user of the camera system to that effect.
  • the central control unit 2d in the camera device 2 does not permit the iris circuit 2f to control the operation of the iris adjustment unit 1a.
  • the user recognizes that even if the type of the mounted lens device 1 does not correspond on the camera device 2 side. For example, if the user is prompted to replace the lens device 1 with a different type, or if the iris circuit 2f is compatible with manual switching of the iris control method, the user can manually switch the switch. And so on. Furthermore, if the central control unit 2e does not permit the operation control by the iris circuit 2f, even if the type of the mounted lens device 1 is not compatible with the camera device 2, the heat generation or the device destruction Etc. can be avoided in advance.
  • connection terminals (specifically, the second pin 12 and the fourth pin 14 are used regardless of which type of connector plug or connector socket is fitted to the connector 2c). Since the lens type is discriminated based on the status detection result for), the connector 2c itself does not necessarily have to be provided with the groove 15 for preventing erroneous insertion, and can be shared by each lens type. . That is, according to the present embodiment, it is possible to realize cost reduction by sharing the connector for each lens type.
  • the lens type of the mounted lens device 1 can be determined. Therefore, on the camera device 2 side, for example, if a plurality of types of control methods for the automatic aperture function that can be handled are prepared in advance, the automatic aperture function for the mounted lens device 1 is determined based on the determination result of the lens type. It is possible to automatically switch the control method to a method suitable for the lens type of the lens device 1. In this case, the camera device 2 can correctly operate the lens device without the user being aware of the lens type of the lens device 1.
  • the camera device 2 side for example, by outputting a determination result of the lens type to the user, it is notified whether the lens type of the mounted lens device 1 is compatible, Depending on the notification result, it is possible to prompt the user to manually switch the control method of the automatic iris function for the lens device 1.
  • the camera device 2 by determining the lens type of the mounted lens device 1, the camera device 2 can operate the lens device 1 correctly. There is no possibility that the aperture function does not operate correctly, and no heat generation or device destruction is caused.
  • the camera device 2 is a CCTV camera
  • the present invention is not limited to this, and may be another camera device such as an IP camera or an FA camera.
  • the present invention can be applied in exactly the same manner.
  • the lens mount 2a is not limited to the CS mount described as an example in the present embodiment, and may be a lens mount of another type such as a C mount.
  • the type of the lens device 1 is mainly one of four types of a video iris lens, a DC iris lens, a P iris lens, and an i-CS lens, and the second pin 12 and the fourth pin
  • the present invention is not limited to this. That is, according to the present invention, even when there are four or more lens types, each type can be accurately and easily determined based on the status detection results for a plurality of connection terminals. Is feasible. Note that the status of each of the plurality of connection terminals is not particularly limited as long as it is unique to each preset type.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Structure And Mechanism Of Cameras (AREA)

Abstract

The present invention makes it possible to easily and accurately distinguish lens types. A camera device that comprises: a lens mount on which is installed a lens device that has an automatic diaphragm function; a connector that has a plurality of connection terminals that are electrically connected to the lens device that is installed on the lens mount; and a lens distinguishing part that, on the basis of status detection results for the other connection terminals after power has been supplied to one of the plurality of connection terminals, distinguishes what kind of lens device is connected to the connector.

Description

カメラ装置およびレンズ装置Camera device and lens device
　本発明は、自動絞り機能を有したレンズ装置が装着されて用いられるカメラ装置およびそのカメラ装置に装着されるレンズ装置に関する。 The present invention relates to a camera device that is used by being mounted with a lens device having an automatic iris function, and a lens device that is mounted on the camera device.
　近年、監視用や産業用等のカメラ装置として、ＩＰカメラ（ネットワークカメラ）、ＣＣＴＶ（Closed-circuit Television）カメラ、ＦＡ（factory automation）カメラ等が広く用いられている。また、このような用途のカメラ装置として、ＣマウントやＣＳマウント等といった互換性のあるレンズマウントを備えており、そのレンズマウントに単焦点レンズまたは可変焦点レンズ（ズームレンズやバリフォーカルレンズ等）が装着され得るように構成されたものが知られている。 Recently, IP cameras (network cameras), CCTV (Closed-circuit Television) cameras, FA (factory automation) cameras, and the like are widely used as camera devices for surveillance and industrial use. In addition, as a camera device for such a purpose, a compatible lens mount such as a C mount or a CS mount is provided, and a single focus lens or a variable focus lens (such as a zoom lens or a varifocal lens) is included in the lens mount. Those configured to be worn are known.
　ところで、カメラ装置のレンズマウントに装着されるレンズ装置としては、自動絞り機能を有して構成されたものがある。自動絞り機能を有したレンズ装置としては、絞りの制御をビデオアイリス制御方式によって行うビデオアイリスレンズおよびＤＣアイリス制御方式によって行うＤＣアイリスレンズが知られているが、近年ではステッピングモータによる高精度な絞り制御を可能にする、いわゆるＰアイリスレンズが提案されている（例えば、特許文献１参照）。さらに、最近では、絞りの制御のみならず、ズームやフォーカスについても、カメラ－レンズ間での双方向通信による高精度な制御を実現可能にしたインテリジェントなＣＣＴＶカメラ用レンズ（以下「ｉ－ＣＳレンズ」ともいう。）も提案されている（例えば、特許文献２参照）。 By the way, as a lens device mounted on the lens mount of the camera device, there is one configured with an automatic iris function. As a lens device having an automatic iris function, there are known a video iris lens that controls the iris by the video iris control method and a DC iris lens that performs the iris control by the DC iris control method. A so-called P-iris lens that enables control is proposed (see, for example, Patent Document 1). Furthermore, recently, an intelligent CCTV camera lens (hereinafter referred to as an “i-CS lens”) that can realize not only aperture control but also zoom and focus with high-precision control through bidirectional communication between the camera and the lens. (Also referred to as “Patent Document 2”).
特開２０１１－１６４６１４号公報JP2011-164614A 特許第５８９３７４６号公報Japanese Patent No. 5893746
　自動絞り機能を有したレンズ装置が装着されるカメラ装置は、カメラ－レンズ間を電気的に接続するためのコネクタを備えており、そのコネクタを通じてレンズ装置の絞りに関する制御指示（制御信号）を与えるようになっている。そのため、カメラ装置がいずれか１種類のレンズ装置のみに対応する単機能品である場合には、対応する種類のレンズ装置がコネクタを通じて電気的に接続している必要がある。また、カメラ装置が複数種類のレンズ装置に対応するものであれば、接続している種類のレンズ装置に適合するように、カメラ装置の側でスイッチ切り換え等がされている必要がある。 A camera device to which a lens device having an automatic iris function is mounted includes a connector for electrically connecting the camera and the lens, and a control instruction (control signal) relating to the iris of the lens device is given through the connector. It is like that. Therefore, when the camera device is a single-function product that supports only one type of lens device, the corresponding type of lens device needs to be electrically connected through a connector. Further, if the camera device is compatible with a plurality of types of lens devices, it is necessary to perform switch switching on the camera device side so as to be compatible with the connected types of lens devices.
　ところが、カメラ－レンズ間を接続するコネクタは、各種類のものが誤挿入されることがあり得る。例えば、ビデオアイリスレンズ用とＤＣアイリスレンズ用とでは、コネクタ形状が同一である。また、Ｐアイリスレンズ用とｉ－ＣＳレンズ用とについては、誤挿入防止のための凹凸部等がコネクタハウジングに設けられたものもあるが、必ずしも全てのものに適用されているわけではない。 However, various types of connectors for connecting the camera and the lens may be erroneously inserted. For example, the connector shape is the same for a video iris lens and a DC iris lens. Further, for the P-iris lens and the i-CS lens, there are some in which a concave and convex portion for preventing erroneous insertion is provided in the connector housing, but this is not necessarily applied to all.
　レンズ種類の異なるコネクタが誤挿入された場合、すなわちカメラ装置の側で対応していない種類のレンズ装置が装着されて電気的に接続されている場合には、自動絞り機能の制御方式が各種類で全く異なるため、装着されたレンズ装置における自動絞り機能が正しく動作しないだけでなく、発熱やデバイス破壊等を招いてしまうおそれがある。つまり、レンズ種類の異なるコネクタの誤挿入は、その発生を未然に防ぐべきである。 When a connector with a different lens type is inserted incorrectly, that is, when a lens device of a type that is not supported by the camera device is installed and electrically connected, the control method for the automatic iris function Therefore, the automatic aperture function in the mounted lens apparatus does not operate correctly, and there is a risk of heat generation and device destruction. In other words, the erroneous insertion of connectors of different lens types should be prevented in advance.
　そのためには、レンズ種類の判別を正確かつ容易に行い得るようにすることが重要である。しかしながら、レンズ種類として上述したビデオアイリスレンズ、ＤＣアイリスレンズ、Ｐアイリスレンズおよびｉ－ＣＳレンズの少なくとも四種類が存在する状況下において、従来技術では、これらの各種類の全てを正確かつ容易に判別し得るとは言えない。 For that purpose, it is important to be able to distinguish the lens type accurately and easily. However, in the situation where there are at least four types of video iris lens, DC iris lens, P iris lens, and i-CS lens described above as the lens types, the conventional technology accurately and easily discriminates each of these types. I can't say that.
　そこで、本発明は、レンズ種類の判別を正確かつ容易に行うことを可能にするカメラ装置およびレンズ装置を提供することを目的とする。 Therefore, an object of the present invention is to provide a camera device and a lens device that can accurately and easily determine the lens type.
　本発明の一態様によれば、
　自動絞り機能を有したレンズ装置が装着されるレンズマウントと、
　前記レンズマウントに装着されたレンズ装置と電気的に接続する複数の接続端子を有したコネクタと、
　前記複数の接続端子のうちの一つに電源供給を行ったときの他の複数の接続端子についてのステータス検出結果を基に、前記コネクタに接続されたレンズ装置の種類を判別するレンズ判別部と、
　を備えることを特徴とするカメラ装置が提供される。 According to one aspect of the invention,
A lens mount to which a lens device having an automatic iris function is attached;
A connector having a plurality of connection terminals electrically connected to the lens device mounted on the lens mount;
A lens discriminating unit for discriminating the type of the lens device connected to the connector based on the status detection results for the other plurality of connection terminals when power is supplied to one of the plurality of connection terminals; ,
A camera device is provided.
　本発明の他の態様によれば、
　カメラ装置のレンズマウントに装着されるレンズ装置であって、
　前記カメラ装置の側からの制御指示に応じてアイリスの開口量をモータ駆動により調整する自動絞り機能と、
　前記自動絞り機能に対する制御指示を受けるために、前記カメラ装置の側と電気的に接続する複数の接続端子を有したコネクタと、を備え、
　前記複数の接続端子のうちの一つに電源供給を行ったときの他の複数の接続端子についてのステータスが、前記自動絞り機能を有したレンズ種類に固有のものとなるように構成されている
　ことを特徴とするレンズ装置が提供される。 According to another aspect of the invention,
A lens device mounted on a lens mount of a camera device,
An automatic iris function that adjusts the iris opening amount by motor driving in accordance with a control instruction from the camera device side;
A connector having a plurality of connection terminals electrically connected to the camera device side in order to receive a control instruction for the automatic iris function;
When the power is supplied to one of the plurality of connection terminals, the status for the other plurality of connection terminals is configured to be unique to the lens type having the automatic aperture function. A lens device is provided.
　本発明によれば、レンズ種類の判別を正確かつ容易に行うことが実現可能となる。 According to the present invention, it is possible to accurately and easily determine the lens type.
本発明の一実施形態に係るカメラシステムの全体構成の一例を示すブロック図である。It is a block diagram which shows an example of the whole structure of the camera system which concerns on one Embodiment of this invention. 本発明の一実施形態に係るカメラ装置におけるコネクタの構成例を示す模式図である。It is a schematic diagram which shows the structural example of the connector in the camera apparatus which concerns on one Embodiment of this invention. 本発明の一実施形態に係るカメラ装置におけるレンズ判別部の構成例を示す模式図である。It is a schematic diagram which shows the structural example of the lens discrimination | determination part in the camera apparatus which concerns on one Embodiment of this invention. 本発明の一実施形態に係るカメラシステムにおいてレンズ種類の判別を行う際の処理手順の一例を示すフロー図である。It is a flowchart which shows an example of the process sequence at the time of discriminating a lens kind in the camera system which concerns on one Embodiment of this invention.
＜本発明の一実施形態＞
　以下、本発明の実施の形態について、図面を参照しながら説明する。 <One Embodiment of the Present Invention>
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
（１）カメラシステムの全体構成
　先ず、本実施形態に係るカメラシステムの全体構成について説明する。
　図１に示すように、カメラシステムは、レンズ装置１と、カメラ装置２と、を備えて構成されている。 (1) Overall Configuration of Camera System First, the overall configuration of the camera system according to the present embodiment will be described.
As shown in FIG. 1, the camera system includes a lens device 1 and a camera device 2.
（レンズ装置）
　レンズ装置１は、カメラ装置２に装着されて用いられるものである。レンズ装置１としては、カメラ装置２が備えるレンズマウント２ａに装着可能なものであれば（すなわち、互換性に対応したものであれば）、単焦点レンズまたは可変焦点レンズ（ズームレンズやバリフォーカルレンズ等）のいずれであってもよい。 (Lens device)
The lens device 1 is used by being mounted on the camera device 2. If the lens device 1 can be attached to the lens mount 2a included in the camera device 2 (that is, compatible with compatibility), a single focus lens or a variable focus lens (zoom lens or varifocal lens). Etc.).
　また、レンズ装置１は、自動絞り（オートアイリス）機能を実現するためのアイリス調整部１ａを備えている。アイリス調整部１ａは、レンズ装置１の絞りの調整（すなわち、レンズ装置１を透過する光量の調整）を行うものであり、光路を形成する開口部を有した基板上に直線スライド可能に構成された絞り羽根を有しており、絞り羽根のスライド量をモータ駆動によって制御することで、光量の調整を行うように構成されている。アイリス調整部１ａが有する絞り羽根は、例えば、２枚とすることが考えられるが、これに限定されることはなく、５枚や７枚等であってもよい。また、絞り羽根の駆動制御は、必ずしもモータ駆動によるものである必要はなく、例えばガルバノメータ駆動によるものであってもよい。 Further, the lens apparatus 1 includes an iris adjustment unit 1a for realizing an automatic iris (auto iris) function. The iris adjusting unit 1a adjusts the diaphragm of the lens device 1 (that is, adjusts the amount of light transmitted through the lens device 1), and is configured to be linearly slidable on a substrate having an opening that forms an optical path. The diaphragm blades are provided, and the amount of light is adjusted by controlling the sliding amount of the diaphragm blades by driving the motor. For example, it is conceivable that the iris blades of the iris adjusting unit 1a are two, but the number is not limited to this, and may be five or seven. Further, the drive control of the diaphragm blades is not necessarily performed by motor driving, and may be performed by, for example, galvanometer driving.
　アイリス調整部１ａに対する制御方式は、ビデオアイリス、ＤＣアイリス、Ｐアイリスまたはｉ－ＣＳのいずれであってもよい。
　ビデオアイリス制御方式は、カメラ装置２の側から電源とビデオ信号が供給され、そのビデオ信号に基づいてレンズ装置１の側でモータ駆動信号またはガルバノメータ駆動信号等を制御することで、絞りの調整を行う方式である。
　ＤＣアイリス制御方式は、カメラ装置２の側でビデオ信号からアイリスのコントロール信号が生成され、そのコントロール信号がレンズ装置１の側に供給されることで、絞りの調整を行う方式である。
　Ｐアイリス制御方式は、ステッピングモータによる高精度な絞り制御を可能にし、光量の調整（すなわち、開口部の大きさの調整）を正確に制御できるようにする方式である。
　ｉ－ＣＳ制御方式は、カメラ－レンズ間での双方向通信による高精度な制御を実現可能にしたインテリジェントな制御方式である。
　つまり、自動絞り機能を有したレンズ装置１としては、ビデオアイリスレンズ、ＤＣアイリスレンズ、Ｐアイリスレンズまたはｉ－ＣＳレンズのいずれであってもよい。 The control method for the iris adjustment unit 1a may be any of video iris, DC iris, P iris, or i-CS.
In the video iris control system, power and a video signal are supplied from the camera device 2 side, and the lens device 1 side controls a motor drive signal or a galvanometer drive signal based on the video signal, thereby adjusting the aperture. It is a method to do.
In the DC iris control method, an iris control signal is generated from a video signal on the camera device 2 side, and the control signal is supplied to the lens device 1 side to adjust the iris.
The P-iris control system is a system that enables highly precise aperture control by a stepping motor and enables accurate control of light amount adjustment (that is, adjustment of the size of the opening).
The i-CS control method is an intelligent control method that enables high-precision control through bidirectional communication between the camera and the lens.
That is, the lens device 1 having the automatic iris function may be a video iris lens, a DC iris lens, a P iris lens, or an i-CS lens.
（カメラ装置）
　カメラ装置２は、例えば、監視用や産業用等のカメラ装置として用いられるもので、ＩＰカメラ、ＣＣＴＶカメラ、ＦＡカメラ等からなるものである。以下の説明では、カメラ装置２がＣＣＴＶカメラである場合を例に挙げるが、本発明がこれに限定されるものではない。 (Camera device)
The camera device 2 is used as, for example, a camera device for surveillance or industrial use, and includes an IP camera, a CCTV camera, an FA camera, and the like. In the following description, a case where the camera device 2 is a CCTV camera is taken as an example, but the present invention is not limited to this.
　また、カメラ装置２は、レンズ装置１が装着されるＣマウントやＣＳマウント等のレンズマウント２ａと、そのレンズマウント２ａに装着されたレンズ装置１を通して得られる光学像を撮像するＣＣＤ（Charge Coupled Device）センサやＣＭＯＳ（Complementary Metal Oxide Semiconductor）センサ等の撮像素子２ｂと、を備えている。なお、以下の説明では、レンズマウント１ａがＣＳマウントである場合を例に挙げるが、本発明がこれに限定されるものではない。 The camera device 2 includes a lens mount 2a such as a C mount or CS mount to which the lens device 1 is attached, and a CCD (Charge Coupled Device) that captures an optical image obtained through the lens device 1 attached to the lens mount 2a. ) Sensor and imaging element 2b such as a CMOS (Complementary Metal Metal Oxide Semiconductor) sensor. In the following description, a case where the lens mount 1a is a CS mount is taken as an example, but the present invention is not limited to this.
　さらに、カメラ装置２は、レンズマウント２ａに装着されたレンズ装置１と電気的に接続するコネクタ２ｃと、そのコネクタ２ｃと電気的に接続されたレンズ装置１の種類を判別するレンズ判別部２ｄと、を備えている。なお、コネクタ２ｃおよびレンズ判別部２ｄの具体的な構成等については、その詳細を後述する。 Further, the camera device 2 includes a connector 2c that is electrically connected to the lens device 1 mounted on the lens mount 2a, and a lens determination unit 2d that determines the type of the lens device 1 that is electrically connected to the connector 2c. It is equipped with. The specific configurations of the connector 2c and the lens determination unit 2d will be described later in detail.
　さらにまた、カメラ装置２は、カメラ装置２内にてコンピュータとしての機能を有する制御基板等からなる中央制御部２ｅを備えている。中央制御部２ｅは、カメラ装置２の全体の動作制御を行うものである。中央制御部２ｅが行う動作制御には、レンズマウント２ａに装着されたレンズ装置１に対する動作制御、特にレンズ装置１が備えるアイリス調整部１ａに対する動作制御が含まれているものとする。つまり、中央制御部２ｅは、アイリス調整部１ａに対する動作制御を行うアイリス回路２ｆを有して構成されている。 Furthermore, the camera device 2 includes a central control unit 2e made of a control board or the like having a function as a computer in the camera device 2. The central control unit 2e performs overall operation control of the camera device 2. It is assumed that the operation control performed by the central control unit 2e includes operation control for the lens device 1 mounted on the lens mount 2a, particularly operation control for the iris adjustment unit 1a provided in the lens device 1. That is, the central control unit 2e includes an iris circuit 2f that performs operation control on the iris adjustment unit 1a.
　アイリス回路２ｆは、ビデオアイリスレンズ、ＤＣアイリスレンズ、Ｐアイリスレンズおよびｉ－ＣＳレンズのそれぞれに選択的に対応可能なものとすることが考えられる。具体的には、アイリス回路２ｆについては、ビデオアイリス制御方式による絞り制御を行うビデオアイリス回路としての機能、ＤＣアイリス制御方式による絞り制御を行うＤＣアイリス回路としての機能、Ｐアイリス制御方式による絞り制御を行うＰアイリス回路としての機能、および、ｉ－ＣＳ制御方式による絞り制御を行うｉ－ＣＳレンズ回路としての機能を有し、これらの各機能を適宜切り換えて用いるように構成することが考えられる。ただし、アイリス回路２ｆは、このような構成に限定されることはなく、ビデオアイリスレンズ、ＤＣアイリスレンズ、Ｐアイリスレンズまたはｉ－ＣＳレンズのいずれか一つに対応するように構成したものであってもよい。つまり、アイリス回路２ｆは、ビデオアイリスレンズ、ＤＣアイリスレンズ、Ｐアイリスレンズまたはｉ－ＣＳレンズの少なくとも一つについて、絞り制御を行うように構成されたものであればよい。 It is conceivable that the iris circuit 2f can selectively correspond to each of a video iris lens, a DC iris lens, a P iris lens, and an i-CS lens. Specifically, for the iris circuit 2f, a function as a video iris circuit that performs aperture control by a video iris control system, a function as a DC iris circuit that performs aperture control by a DC iris control system, and an aperture control by a P iris control system It is conceivable to have a function as a P-iris circuit that performs the above and a function as an i-CS lens circuit that performs aperture control by the i-CS control method, and to switch these functions for use. . However, the iris circuit 2f is not limited to such a configuration, and is configured to correspond to any one of a video iris lens, a DC iris lens, a P iris lens, or an i-CS lens. May be. In other words, the iris circuit 2f only needs to be configured to perform aperture control for at least one of a video iris lens, a DC iris lens, a P iris lens, or an i-CS lens.
　また、カメラ装置２は、切換回路２ｇを備えている。切換回路２ｇは、アイリス回路２ｆが上述した各機能を適宜切り換えて用いるように構成されている場合に、各機能の切り換えを行うものである。具体的には、切換回路２ｇは、詳細を後述するように、レンズ判別部２ｄでのレンズ種類の判別結果に基づき、アイリス回路２ｆが絞り制御を行う際の機能をレンズ種類に適合したものに切り換えるようになっている。なお、切換回路２ｇの具体的な構成については、特に限定されるものではなく、アイリス回路２ｆにおける機能の切り換えに対応し得るものであればよい。 In addition, the camera device 2 includes a switching circuit 2g. The switching circuit 2g performs switching of each function when the iris circuit 2f is configured to switch and use the above functions as appropriate. Specifically, as will be described in detail later, the switching circuit 2g is configured so that the function when the iris circuit 2f performs aperture control is adapted to the lens type based on the determination result of the lens type in the lens determination unit 2d. It is designed to switch. The specific configuration of the switching circuit 2g is not particularly limited as long as it can cope with the function switching in the iris circuit 2f.
（２）コネクタの構成
　続いて、カメラ装置２が備えるコネクタ２ｃについて詳しく説明する。 (2) Configuration of Connector Next, the connector 2c included in the camera device 2 will be described in detail.
　コネクタ２ｃは、レンズマウント２ａに装着されたレンズ装置１から延びる電気ケーブルの端縁に配されたコネクタプラグまたはコネクタソケットが嵌合され、これによりそのレンズ装置１とカメラ装置２との電気的な接続を確立するものである。この電気的な接続によって、アイリス回路２ｆは、アイリス調整部１ａに対する動作制御を行うことが可能となる。レンズ装置１との電気的な接続のために、コネクタ２ｃは、例えばＥＩＡＪ（Electronic Industries Association of Japan：日本電子機械工業会）の規格に準拠して、複数の接続端子を有して構成されている。 The connector 2c is fitted with a connector plug or a connector socket disposed on an end edge of an electric cable extending from the lens device 1 mounted on the lens mount 2a, whereby the electrical connection between the lens device 1 and the camera device 2 is established. Establish a connection. With this electrical connection, the iris circuit 2f can perform operation control on the iris adjustment unit 1a. For electrical connection with the lens device 1, the connector 2 c is configured to have a plurality of connection terminals in accordance with, for example, the standard of EIAJ (Electronic Industries Association of Japan). Yes.
　具体的には、コネクタ２ｃは、図２（ａ）に示すように、複数の接続端子として、四つのピン状接続端子（以下、単に「接続ピン」ともいう。）１１～１４を有している。さらに詳しくは、コネクタ２ｃは、第一の接続ピン（以下、「第一ピン」ともいう。）１１と、第二の接続ピン（以下、「第二ピン」ともいう。）１２と、第三の接続ピン（以下、「第三ピン」ともいう。）１３と、第四の接続ピン（以下、「第四ピン」ともいう。）１４とを有しており、これらが所定の順で配列されて構成されている。かかる構成のコネクタ２ｃは、主として、ビデオアイリスレンズまたはＤＣアイリスレンズに適合する。 Specifically, as shown in FIG. 2A, the connector 2c has four pin-like connection terminals (hereinafter also simply referred to as “connection pins”) 11 to 14 as a plurality of connection terminals. Yes. More specifically, the connector 2 c includes a first connection pin (hereinafter also referred to as “first pin”) 11, a second connection pin (hereinafter also referred to as “second pin”) 12, and a third. Connection pins (hereinafter also referred to as “third pins”) 13 and fourth connection pins (hereinafter also referred to as “fourth pins”) 14, which are arranged in a predetermined order. Has been configured. The connector 2c having such a configuration is mainly adapted to a video iris lens or a DC iris lens.
　ただし、コネクタ２ｃは、図２（ａ）に示した構成に限定されるものではない。すなわち、コネクタ２ｃは、所定の順で配列された第一ピン１１～第四ピン１４を有していれば、図２（ｂ）に示すように、第一ピン１１～第四ピン１４に加えて、誤挿入防止のための溝部１５等が形成されたものであってもよい。かかる構成のコネクタ２ｃは、主として、Ｐアイリスレンズに適合する。 However, the connector 2c is not limited to the configuration shown in FIG. That is, if the connector 2c has the first pin 11 to the fourth pin 14 arranged in a predetermined order, the connector 2c is added to the first pin 11 to the fourth pin 14 as shown in FIG. Thus, a groove 15 or the like for preventing erroneous insertion may be formed. The connector 2c having such a configuration is mainly adapted to a P iris lens.
　また、コネクタ２ｃは、所定の順で配列された第一ピン１１～第四ピン１４を有していれば、図２（ｃ）に示すように、第一ピン１１～第四ピン１４に加えて、第五の接続ピン（以下、「第五ピン」ともいう。）１６を有して構成されたものであってもよい。かかる構成のコネクタ２ｃは、主として、ｉ－ＣＳレンズに適合する。 If the connector 2c has the first pin 11 to the fourth pin 14 arranged in a predetermined order, the connector 2c can be added to the first pin 11 to the fourth pin 14 as shown in FIG. Further, it may be configured to have a fifth connection pin (hereinafter also referred to as “fifth pin”) 16. The connector 2c having such a configuration is mainly compatible with an i-CS lens.
　なお、図２（ａ）～（ｃ）に示した各構成のコネクタ２ｃは、いずれの構成の場合であっても、第一ピン１１～第四ピン１４のそれぞれに対応する接続端子を有した同一形状のコネクタプラグまたはコネクタソケットが嵌合され得るようになっている。 Note that the connector 2c having each configuration shown in FIGS. 2A to 2C has a connection terminal corresponding to each of the first pin 11 to the fourth pin 14 in any configuration. A connector plug or connector socket having the same shape can be fitted.
（３）レンズ判別部の構成
　次いで、カメラ装置２が備えるレンズ判別部２ｄについて詳しく説明する。 (3) Configuration of Lens Discriminating Unit Next, the lens discriminating unit 2d provided in the camera device 2 will be described in detail.
　レンズ判別部２ｄは、中央制御部２ｅの一部を構成するもので、コネクタ２ｃと電気的に接続されたレンズ装置１の種類を判別するものである。具体的には、レンズ判別部２ｄは、コネクタ２ｃと電気的に接続されたレンズ装置１がビデオアイリスレンズ、ＤＣアイリスレンズ、Ｐアイリスレンズまたはｉ－ＣＳレンズのいずれかであるかを判別するようになっている。 The lens discriminating unit 2d constitutes a part of the central control unit 2e, and discriminates the type of the lens device 1 electrically connected to the connector 2c. Specifically, the lens determination unit 2d determines whether the lens device 1 electrically connected to the connector 2c is a video iris lens, a DC iris lens, a P iris lens, or an i-CS lens. It has become.
　このような判別を行うために、レンズ判別部２ｄは、以下に述べる機能を実現する電気回路によって構成されている。すなわち、レンズ判別部２ｄは、コネクタ２ｃにおける第一ピン１１～第四ピン１４のうちの一つ、具体的には第一ピン１１に対して、電源供給（例えば５Ｖの電圧印加）を行い得るとともに、第一ピン１１～第四ピン１４のうちの他の一つ、具体的には第三ピン１３をグランド（ＧＮＤ）に接地させ得るように構成されている。さらに、レンズ判別部２ｄは、第一ピン１１に電源供給を行ったときのコネクタ２ｃの他の複数の接続ピン、具体的には第二ピン１２および第四ピン１４の二つについて、それぞれのステータスがハイ状態（例えば所定閾値以上の電圧値の状態）であるかロウ状態（例えば所定閾値未満の電圧値の状態）であるかを検出し得るように構成されている。 In order to perform such discrimination, the lens discrimination unit 2d is configured by an electric circuit that realizes the functions described below. That is, the lens determination unit 2d can supply power (for example, voltage application of 5V) to one of the first pin 11 to the fourth pin 14, specifically, the first pin 11 in the connector 2c. In addition, another one of the first pin 11 to the fourth pin 14, specifically, the third pin 13 can be grounded to the ground (GND). Furthermore, the lens determination unit 2d is configured for each of the other connection pins of the connector 2c when the power is supplied to the first pin 11, specifically, the second pin 12 and the fourth pin 14. It is configured to detect whether the status is a high state (for example, a voltage value state equal to or higher than a predetermined threshold) or a low state (for example, a voltage value state lower than the predetermined threshold value).
　コネクタ２ｃと電気的に接続されるレンズ装置１の側は、図３（ａ）～（ｄ）に示すように、そのレンズ装置１がビデオアイリスレンズ、ＤＣアイリスレンズ、Ｐアイリスレンズまたはｉ－ＣＳレンズのいずれかであるかによって、電気回路の構成が異なる。そのため、レンズ判別部２ｄが第一ピン１１に電源供給を行ったときの第二ピン１２および第四ピン１４のステータスは、レンズ装置１の種類別に固有のものとなる。このことを利用して、レンズ判別部２ｄは、コネクタ２ｃと電気的に接続されたレンズ装置１の種類を判別するのである。 As shown in FIGS. 3A to 3D, the lens device 1 that is electrically connected to the connector 2c has a lens device 1 that is a video iris lens, a DC iris lens, a P iris lens, or an i-CS. The configuration of the electric circuit differs depending on whether the lens is used. Therefore, the statuses of the second pin 12 and the fourth pin 14 when the lens determination unit 2 d supplies power to the first pin 11 are unique for each type of lens device 1. Using this, the lens determination unit 2d determines the type of the lens device 1 that is electrically connected to the connector 2c.
　具体的には、レンズ判別部２ｄは、予め設定されている判別テーブルに基づき（図３（ｅ）参照）、第一ピン１１に電源供給を行ったときの第二ピン１２および第四ピン１４について、それぞれのステータス検出結果がいずれもロウ状態（以下、単に「Ｌ」ともいう。）であれば、コネクタ２ｃに接続されたレンズ装置１の種類がビデオアイリスレンズであると判別する（図３（ａ）、（ｅ）参照）。
　また、レンズ判別部２ｄは、第一ピン１１に電源供給を行ったときの第二ピン１２および第四ピン１４について、第二ピン１２のステータス検出結果がハイ状態（以下、単に「Ｈ」ともいう。）であり、かつ、第四ピン１４のステータス検出結果がＬであれば、コネクタ２ｃに接続されたレンズ装置１の種類がＤＣアイリスレンズであると判別する（図３（ｂ）、（ｅ）参照）。
　また、レンズ判別部２ｄは、第一ピン１１に電源供給を行ったときの第二ピン１２および第四ピン１４について、第二ピン１２のステータス検出結果がＬであり、かつ、第四ピン１４のステータス検出結果がＨであれば、コネクタ２ｃに接続されたレンズ装置１の種類がＰアイリスレンズであると判別する（図３（ｃ）、（ｅ）参照）。
　また、レンズ判別部２ｄは、第一ピン１１に電源供給を行ったときの第二ピン１２および第四ピン１４について、それぞれのステータス検出結果がいずれもＨであれば、コネクタ２ｃに接続されたレンズ装置１の種類がｉ－ＣＳレンズであると判別する（図３（ｄ）、（ｅ）参照）。 Specifically, the lens discriminating unit 2d is based on a preset discrimination table (see FIG. 3E), and the second pin 12 and the fourth pin 14 when the first pin 11 is supplied with power. If the status detection results are all in the low state (hereinafter also simply referred to as “L”), it is determined that the type of the lens device 1 connected to the connector 2c is a video iris lens (FIG. 3). (See (a) and (e)).
In addition, the lens determination unit 2d determines that the status detection result of the second pin 12 is in a high state (hereinafter, simply “H”) for the second pin 12 and the fourth pin 14 when power is supplied to the first pin 11. If the status detection result of the fourth pin 14 is L, it is determined that the type of the lens device 1 connected to the connector 2c is a DC iris lens (FIG. 3B, ( e)).
In addition, the lens determination unit 2d has a status detection result of the second pin 12 of L for the second pin 12 and the fourth pin 14 when power is supplied to the first pin 11, and the fourth pin 14 If the status detection result is H, it is determined that the type of the lens device 1 connected to the connector 2c is a P-iris lens (see FIGS. 3C and 3E).
Further, the lens determination unit 2d is connected to the connector 2c if the status detection results of the second pin 12 and the fourth pin 14 when the power is supplied to the first pin 11 are both H. It is determined that the type of the lens device 1 is an i-CS lens (see FIGS. 3D and 3E).
　以上のようにして、レンズ判別部２ｄは、コネクタ２ｃに接続されたレンズ装置１の種類を判別するのである。 As described above, the lens determination unit 2d determines the type of the lens device 1 connected to the connector 2c.
（４）レンズ種類判別の処理手順
　次に、本実施形態に係るカメラシステムにおいて、カメラ装置２におけるレンズ判別部２ｄがレンズ装置１の種類を判別する際の処理手順について、具体的に説明する。ここでは、カメラ装置２におけるアイリス回路２ｆが、ビデオアイリスレンズ、ＤＣアイリスレンズ、Ｐアイリスレンズおよびｉ－ＣＳレンズのそれぞれに選択的に対応可能に構成されている場合を例に挙げる。 (4) Processing Procedure for Lens Type Determination Next, in the camera system according to the present embodiment, a processing procedure when the lens determination unit 2d in the camera device 2 determines the type of the lens device 1 will be specifically described. Here, a case will be described as an example where the iris circuit 2f in the camera device 2 is configured to be selectively compatible with each of a video iris lens, a DC iris lens, a P iris lens, and an i-CS lens.
　図４に示すように、カメラ装置２のレンズマウント１ａにレンズ装置１が装着され、コネクタ２ｃを介してレンズ装置１とカメラ装置２との間が電気的に接続された状態で（ステップ１０１、以下ステップを「Ｓ」と略す。）、カメラ装置２の電源がオンにされると（Ｓ１０２）、カメラ装置２のレンズ判別部２ｄがコネクタ２ｃを通じてレンズ装置１の側に対して、そのコネクタ２ｃの第一ピン１１への電源供給を行うとともに、そのコネクタ２ｃの第三ピン１３をＧＮＤに接地させる（Ｓ１０３）。そして、レンズ判別部２ｄは、コネクタ２ｃを通じてレンズ装置１の側のステータスを読み込む（Ｓ１０４）。具体的には、レンズ判別部２ｄは、コネクタ２ｃの第一ピン１１に電源供給を行ったときの第二ピン１２および第四ピン１４についてのステータスを読み込んで検出し、それぞれのステータスがＨであるかＬであるかを検出する（Ｓ１０５）。 As shown in FIG. 4, the lens device 1 is mounted on the lens mount 1a of the camera device 2, and the lens device 1 and the camera device 2 are electrically connected via the connector 2c (step 101, Hereinafter, the step is abbreviated as “S”.) When the power of the camera device 2 is turned on (S102), the lens discriminating unit 2d of the camera device 2 is connected to the lens device 1 side through the connector 2c. Power is supplied to the first pin 11 and the third pin 13 of the connector 2c is grounded to GND (S103). Then, the lens determination unit 2d reads the status on the lens device 1 side through the connector 2c (S104). Specifically, the lens determination unit 2d reads and detects the statuses of the second pin 12 and the fourth pin 14 when power is supplied to the first pin 11 of the connector 2c, and each status is H. Whether it is L or L is detected (S105).
　その結果、例えば、第二ピン１２および第四ピン１４のステータス検出結果がいずれもＬであれば、レンズ判別部２ｄは、コネクタ２ｃに接続されたレンズ装置１の種類がビデオアイリスレンズであると判別する。そして、レンズ判別部２ｄは、その判別結果を切換回路２ｇへ通知する。これを受けて、切換回路２ｇは、アイリス回路２ｆがレンズ装置１に対する絞り制御を行う際の機能を、ビデオアイリス回路としての機能とするように、アイリス回路２ｆの切り換えを行う（Ｓ１０６）。これにより、アイリス回路２ｆは、レンズ装置１の種類に適したビデオアイリス制御方式により、そのレンズ装置１に対する絞り制御を行うことができる。 As a result, for example, if the status detection results of the second pin 12 and the fourth pin 14 are both L, the lens determination unit 2d indicates that the type of the lens device 1 connected to the connector 2c is a video iris lens. Determine. Then, the lens determination unit 2d notifies the determination result to the switching circuit 2g. In response to this, the switching circuit 2g switches the iris circuit 2f so that the function when the iris circuit 2f performs aperture control on the lens apparatus 1 is a function as a video iris circuit (S106). Thereby, the iris circuit 2 f can perform aperture control on the lens device 1 by a video iris control method suitable for the type of the lens device 1.
　また、例えば、第二ピン１２のステータス検出結果がＨであり、かつ、第四ピン１４のステータス検出結果がＬであれば、レンズ判別部２ｄは、コネクタ２ｃに接続されたレンズ装置１の種類がＤＣアイリスレンズであると判別する。そして、レンズ判別部２ｄは、その判別結果を切換回路２ｇへ通知する。これを受けて、切換回路２ｇは、アイリス回路２ｆがレンズ装置１に対する絞り制御を行う際の機能を、ＤＣアイリス回路としての機能とするように、アイリス回路２ｆの切り換えを行う（Ｓ１０７）。これにより、アイリス回路２ｆは、レンズ装置１の種類に適したＤＣアイリス制御方式により、そのレンズ装置１に対する絞り制御を行うことができる。 For example, if the status detection result of the second pin 12 is H and the status detection result of the fourth pin 14 is L, the lens determination unit 2d determines the type of the lens device 1 connected to the connector 2c. Is a DC iris lens. Then, the lens determination unit 2d notifies the determination result to the switching circuit 2g. In response to this, the switching circuit 2g switches the iris circuit 2f so that the function when the iris circuit 2f performs aperture control on the lens device 1 is a function as a DC iris circuit (S107). Thereby, the iris circuit 2 f can perform aperture control on the lens device 1 by a DC iris control method suitable for the type of the lens device 1.
　また、例えば、第二ピン１２のステータス検出結果がＬであり、かつ、第四ピン１４のステータス検出結果がＨであれば、レンズ判別部２ｄは、コネクタ２ｃに接続されたレンズ装置１の種類がＰアイリスレンズであると判別する。そして、レンズ判別部２ｄは、その判別結果を切換回路２ｇへ通知する。これを受けて、切換回路２ｇは、アイリス回路２ｆがレンズ装置１に対する絞り制御を行う際の機能を、Ｐアイリス回路としての機能とするように、アイリス回路２ｆの切り換えを行う（Ｓ１０８）。これにより、アイリス回路２ｆは、レンズ装置１の種類に適したＰアイリス制御方式により、そのレンズ装置１に対する絞り制御を行うことができる。 For example, if the status detection result of the second pin 12 is L and the status detection result of the fourth pin 14 is H, the lens determination unit 2d determines the type of the lens device 1 connected to the connector 2c. Is a P-iris lens. Then, the lens determination unit 2d notifies the determination result to the switching circuit 2g. In response to this, the switching circuit 2g switches the iris circuit 2f so that the function when the iris circuit 2f performs aperture control on the lens device 1 is the function as the P iris circuit (S108). Thereby, the iris circuit 2 f can perform aperture control on the lens device 1 by the P iris control method suitable for the type of the lens device 1.
　また、例えば、第二ピン１２および第四ピン１４のステータス検出結果がいずれもＨであれば、レンズ判別部２ｄは、コネクタ２ｃに接続されたレンズ装置１の種類がｉ－ＣＳレンズであると判別する。そして、レンズ判別部２ｄは、その判別結果を切換回路２ｇへ通知する。これを受けて、切換回路２ｇは、アイリス回路２ｆがレンズ装置１に対する絞り制御を行う際の機能を、ｉ－ＣＳレンズ回路としての機能とするように、アイリス回路２ｆの切り換えを行う（Ｓ１０９）。これにより、アイリス回路２ｆは、レンズ装置１の種類に適したｉ－ＣＳ制御方式により、そのレンズ装置１に対する絞り制御を行うことができる。 For example, if the status detection results of the second pin 12 and the fourth pin 14 are both H, the lens determination unit 2d determines that the type of the lens device 1 connected to the connector 2c is an i-CS lens. Determine. Then, the lens determination unit 2d notifies the determination result to the switching circuit 2g. In response to this, the switching circuit 2g switches the iris circuit 2f so that the function when the iris circuit 2f performs aperture control on the lens device 1 is the function of the i-CS lens circuit (S109). . As a result, the iris circuit 2 f can perform aperture control on the lens device 1 by an i-CS control method suitable for the type of the lens device 1.
　つまり、カメラ装置２の側では、アイリス回路２ｆが対応可能な絞り制御の方式を予め複数種類用意しておき、レンズ判別部２ｄでのレンズ種類の判別結果に基づいて、アイリス回路２ｆが絞り制御を行う際の機能をレンズ装置１の種類に適合したものに自動的に切り換える、といったことを行うのである。これにより、カメラシステムのユーザがレンズ装置１の種類を意識することなく、カメラ装置２がレンズ装置１を正しく動作させ得るようになる。 That is, on the camera device 2 side, a plurality of types of aperture control methods that can be handled by the iris circuit 2f are prepared in advance, and the iris circuit 2f controls the aperture based on the determination result of the lens type in the lens determination unit 2d. For example, the function for performing the above is automatically switched to a function suitable for the type of the lens device 1. Thereby, the camera device 2 can operate the lens device 1 correctly without the user of the camera system being aware of the type of the lens device 1.
　そして、アイリス回路２ｆが機能の切り換えを行ったら、カメラ装置２では、レンズ判別部２ｄによる上述した一連のレンズ種類の判別処理を終了する（Ｓ１１０）。レンズ種類の判別処理の終了後は、レンズ装置１の種類に適した方式による絞り制御を行いつつ、カメラ装置２における撮像素子２ｂが、そのレンズ装置１を通して得られる光学像についての撮像を行うことになる。 Then, when the iris circuit 2f switches the function, the camera device 2 ends the above-described series of lens type determination processing by the lens determination unit 2d (S110). After completion of the lens type discrimination process, the imaging device 2b in the camera device 2 performs imaging of an optical image obtained through the lens device 1 while performing aperture control according to a method suitable for the type of the lens device 1. become.
（５）処理手順の変形例
　次に、レンズ判別部２ｄがレンズ装置１の種類を判別する際の処理手順の変形例を説明する。ここでは、カメラ装置２におけるアイリス回路２ｆが、ビデオアイリスレンズ、ＤＣアイリスレンズ、Ｐアイリスレンズまたはｉ－ＣＳレンズのいずれか一つに対応するように構成されている場合を例に挙げる。 (5) Modification of Processing Procedure Next, a modification of the processing procedure when the lens determination unit 2d determines the type of the lens device 1 will be described. Here, a case where the iris circuit 2f in the camera device 2 is configured to correspond to any one of a video iris lens, a DC iris lens, a P iris lens, or an i-CS lens will be described as an example.
　かかる構成のアイリス回路２ｆの場合であっても、レンズ判別部２ｄは、コネクタ２ｃの第一ピン１１に電源供給を行ったときの第二ピン１２および第四ピン１４についてのステータス検出結果を得るまでは、上述した処理手順の場合と同様に処理を行う（図４のＳ１０１～Ｓ１０５参照）。ただし、かかる構成の場合には、上述した処理手順の場合とは異なり、アイリス回路２ｆをビデオアイリス回路、ＤＣアイリス回路、Ｐアイリス回路またはｉ－ＣＳレンズ回路として機能させるといった機能切り換えを行うことができない。そこで、かかる構成の場合に、レンズ判別部２ｄは、以下のような処理動作を行う。 Even in the case of the iris circuit 2f having such a configuration, the lens determination unit 2d obtains the status detection results for the second pin 12 and the fourth pin 14 when power is supplied to the first pin 11 of the connector 2c. Up to this point, processing is performed in the same manner as in the above-described processing procedure (see S101 to S105 in FIG. 4). However, in the case of such a configuration, unlike the above-described processing procedure, it is possible to perform function switching such that the iris circuit 2f functions as a video iris circuit, a DC iris circuit, a P iris circuit, or an i-CS lens circuit. Can not. Therefore, in the case of such a configuration, the lens determination unit 2d performs the following processing operation.
　すなわち、レンズ判別部２ｄは、第二ピン１２および第四ピン１４についてのステータス検出結果を基にレンズ装置１の種類を判別したら、判別したレンズ種類がカメラ装置２のアイリス回路２ｆによる絞り制御方式に合致したものであるか否かを判断する。この判断は、例えば、カメラ装置２の側で保持する絞り制御方式に関する情報に基づいて行えばよい。 That is, when the lens determining unit 2d determines the type of the lens device 1 based on the status detection results for the second pin 12 and the fourth pin 14, the determined lens type is an aperture control method by the iris circuit 2f of the camera device 2. It is determined whether or not it matches the above. This determination may be made based on information related to the aperture control method held on the camera device 2 side, for example.
　その結果、判別したレンズ種類がアイリス回路２ｆの絞り制御方式と合致していれば、アイリス回路２ｆがレンズ装置１の種類に適した方式で絞り制御を行うことになり、カメラ装置２がレンズ装置１を正しく動作させ得るようになるので、レンズ判別部２ｄはレンズ種類の判別処理を終了する。 As a result, if the determined lens type matches the iris control method of the iris circuit 2f, the iris circuit 2f performs the iris control by a method suitable for the type of the lens device 1, and the camera device 2 performs the lens device. 1 can be operated correctly, the lens discrimination section 2d ends the lens type discrimination process.
　一方、判別したレンズ種類がアイリス回路２ｆの絞り制御方式と合致していない場合には、装着されたレンズ装置１の種類がアイリス回路２ｆで対応可能なものではないことから、レンズ判別部２ｄは、その判別結果をカメラ装置２が有するモニタ（不図示）またはカメラ装置２と接続する外部装置（不図示）に出力して、その旨をカメラシステムのユーザに報知する。また、これを受けて、カメラ装置２における中央制御部２ｄは、アイリス回路２ｆがアイリス調整部１ａの動作制御を行うことを不許可とする。 On the other hand, if the determined lens type does not match the iris control method of the iris circuit 2f, the type of the mounted lens apparatus 1 is not compatible with the iris circuit 2f, so the lens determining unit 2d The determination result is output to a monitor (not shown) of the camera device 2 or an external device (not shown) connected to the camera device 2 to notify the user of the camera system to that effect. In response to this, the central control unit 2d in the camera device 2 does not permit the iris circuit 2f to control the operation of the iris adjustment unit 1a.
　このように、レンズ種類の判別結果をユーザに対して報知すれば、装着されたレンズ装置１の種類がカメラ装置２の側で対応していない場合であっても、そのことをユーザが認識し得るようになり、例えば、ユーザに異なる種類のレンズ装置１への交換を促したり、またアイリス回路２ｆが絞り制御方式の手動スイッチ切り換えに対応している場合であればユーザにスイッチの手動切り換え操作を促したりする、といったことが実現可能となる。さらには、中央制御部２ｅがアイリス回路２ｆによる動作制御を不許可とすれば、装着されたレンズ装置１の種類がカメラ装置２の側で対応していない場合であっても、発熱やデバイス破壊等を招いてしまうのを未然に回避し得るようになる。 In this way, if the lens type determination result is notified to the user, the user recognizes that even if the type of the mounted lens device 1 does not correspond on the camera device 2 side. For example, if the user is prompted to replace the lens device 1 with a different type, or if the iris circuit 2f is compatible with manual switching of the iris control method, the user can manually switch the switch. And so on. Furthermore, if the central control unit 2e does not permit the operation control by the iris circuit 2f, even if the type of the mounted lens device 1 is not compatible with the camera device 2, the heat generation or the device destruction Etc. can be avoided in advance.
（６）本実施形態により得られる効果
　本実施形態によれば、以下に示す一つまたは複数の効果が得られる。 (6) Effects obtained by the present embodiment According to the present embodiment, one or more effects shown below can be obtained.
（ａ）本実施形態では、カメラ装置２が備えるコネクタ２ｃにおける複数の接続端子についてのステータス検出結果、具体的には第二ピン１２および第四ピン１４といった二つ以上の接続端子のそれぞれのステータスがＨであるかＬであるかを基に、コネクタ２ｃに接続されたレンズ装置１の種類を判別するので、各接続端子におけるステータスの組み合わせを考慮すると、四種類以上のレンズ種類について、これらの各種類の全てを正確に判別することができるようになる。しかも、各接続端子のステータスを検出すればレンズ種類を判別できるので、その判別を容易に行うことが可能となる。つまり、本実施形態によれば、少なくとも四種類のレンズ種類について、これらの各種類のそれぞれの判別を正確かつ容易に行うことが実現可能となる。 (A) In the present embodiment, the status detection results for a plurality of connection terminals in the connector 2c included in the camera device 2, specifically, the statuses of two or more connection terminals such as the second pin 12 and the fourth pin 14, respectively. Since the type of the lens device 1 connected to the connector 2c is determined based on whether H is L or L, considering the combination of statuses at each connection terminal, these types of lens devices 1 All types can be accurately discriminated. Moreover, since the lens type can be determined by detecting the status of each connection terminal, the determination can be easily performed. That is, according to the present embodiment, it is possible to accurately and easily determine each of these types for at least four lens types.
（ｂ）本実施形態では、コネクタ２ｃにどのレンズ種類のコネクタプラグまたはコネクタソケットが嵌合された場合であっても、複数の接続端子（具体的には、第二ピン１２および第四ピン１４）についてのステータス検出結果を基にレンズ種類の判別を行うので、コネクタ２ｃ自体については、必ずしも誤挿入防止のための溝部１５等を設ける必要がなく、各レンズ種類で共用することが可能となる。つまり、本実施形態によれば、各レンズ種類でのコネクタ共用化によるコストダウンが実現可能となる。 (B) In the present embodiment, a plurality of connection terminals (specifically, the second pin 12 and the fourth pin 14 are used regardless of which type of connector plug or connector socket is fitted to the connector 2c). Since the lens type is discriminated based on the status detection result for), the connector 2c itself does not necessarily have to be provided with the groove 15 for preventing erroneous insertion, and can be shared by each lens type. . That is, according to the present embodiment, it is possible to realize cost reduction by sharing the connector for each lens type.
（ｃ）本実施形態によれば、どのレンズ種類のレンズ装置１が装着された場合であっても、これに伴って接続されたコネクタ２ｃの接続端子のステータス検出結果を基にすることで、カメラ装置２の側において、装着されたレンズ装置１のレンズ種類を判別することが可能となる。したがって、カメラ装置２の側では、例えば、対応可能な自動絞り機能の制御方式を予め複数種類用意しておけば、レンズ種類の判別結果に基づいて、装着されたレンズ装置１に対する自動絞り機能の制御方式をそのレンズ装置１のレンズ種類に適合したものに自動的に切り換える、といったことが実現可能となる。この場合には、ユーザがレンズ装置１のレンズ種類を意識することなく、カメラ装置２がレンズ装置を正しく動作させることができる。また、カメラ装置２の側では、例えば、レンズ種類の判別結果をユーザに対して出力することで、装着されたレンズ装置１のレンズ種類が対応可能なものであるか否かを報知したり、その報知結果に応じてレンズ装置１に対する自動絞り機能の制御方式の手動切り換えをユーザに促したりする、といったことも実現可能となる。このように、本実施形態によれば、装着されたレンズ装置１のレンズ種類を判別することで、そのレンズ装置１をカメラ装置２が正しく動作させ得るようになるので、そのレンズ装置１における自動絞り機能が正しく動作しないといったことが生じることがなく、また発熱やデバイス破壊等を招いてしまうこともない。 (C) According to the present embodiment, no matter what type of lens device 1 is mounted, based on the status detection result of the connection terminal of the connector 2c connected thereto, On the camera device 2 side, the lens type of the mounted lens device 1 can be determined. Therefore, on the camera device 2 side, for example, if a plurality of types of control methods for the automatic aperture function that can be handled are prepared in advance, the automatic aperture function for the mounted lens device 1 is determined based on the determination result of the lens type. It is possible to automatically switch the control method to a method suitable for the lens type of the lens device 1. In this case, the camera device 2 can correctly operate the lens device without the user being aware of the lens type of the lens device 1. Further, on the camera device 2 side, for example, by outputting a determination result of the lens type to the user, it is notified whether the lens type of the mounted lens device 1 is compatible, Depending on the notification result, it is possible to prompt the user to manually switch the control method of the automatic iris function for the lens device 1. As described above, according to the present embodiment, by determining the lens type of the mounted lens device 1, the camera device 2 can operate the lens device 1 correctly. There is no possibility that the aperture function does not operate correctly, and no heat generation or device destruction is caused.
＜他の実施形態＞
　以上に、本発明の一実施形態を具体的に説明したが、本発明は上述の実施形態に限定されるものではなく、その要旨を逸脱しない範囲で種々変更可能である。 <Other embodiments>
Although one embodiment of the present invention has been specifically described above, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention.
　例えば、本実施形態では、主として、カメラ装置２がＣＣＴＶカメラである場合を例に挙げたが、本発明がこれに限定されるものではなく、ＩＰカメラやＦＡカメラ等といった他のカメラ装置であっても、全く同様に本発明を適用することが可能である。また、カメラ装置２が備えるレンズマウント２ａについても同様であり、本実施形態で例に挙げたＣＳマウントに限定されることはなく、Ｃマウント等の他形式のレンズマウントであってもよい。 For example, in the present embodiment, the case where the camera device 2 is a CCTV camera is mainly described as an example, but the present invention is not limited to this, and may be another camera device such as an IP camera or an FA camera. However, the present invention can be applied in exactly the same manner. The same applies to the lens mount 2a included in the camera device 2. The lens mount 2a is not limited to the CS mount described as an example in the present embodiment, and may be a lens mount of another type such as a C mount.
　また、例えば、本実施形態では、主として、レンズ装置１の種類がビデオアイリスレンズ、ＤＣアイリスレンズ、Ｐアイリスレンズおよびｉ－ＣＳレンズの四種類のいずれかであり、第二ピン１２および第四ピン１４のそれぞれのステータス検出結果に基づいて、そのレンズ装置１の種類を判別する場合を例に挙げたが、本発明がこれに限定されるものではない。すなわち、本発明は、四種類以上のレンズ種類が存在する場合であっても、複数の接続端子についてのステータス検出結果を基にすることで、各種類のそれぞれの判別を正確かつ容易に行うことが実現可能となる。なお、複数の接続端子のそれぞれがどのようなステータスとなるかについては、予め設定された各種類に固有のものであれば、特に限定されるものではない。 Further, for example, in the present embodiment, the type of the lens device 1 is mainly one of four types of a video iris lens, a DC iris lens, a P iris lens, and an i-CS lens, and the second pin 12 and the fourth pin Although the case where the type of the lens device 1 is determined based on the respective 14 status detection results has been described as an example, the present invention is not limited to this. That is, according to the present invention, even when there are four or more lens types, each type can be accurately and easily determined based on the status detection results for a plurality of connection terminals. Is feasible. Note that the status of each of the plurality of connection terminals is not particularly limited as long as it is unique to each preset type.
　１…レンズ装置、１ａ…アイリス調整部、２…カメラ装置、２ａ…レンズマウント、２ｃ…コネクタ、２ｄ…レンズ判別部、２ｆ…アイリス回路、１１…第一の接続ピン（第一ピン）、１２…第二の接続ピン（第二ピン）、１３…第三の接続ピン（第三ピン）、１４１…第四の接続ピン（第四ピン） DESCRIPTION OF SYMBOLS 1 ... Lens apparatus, 1a ... Iris adjustment part, 2 ... Camera apparatus, 2a ... Lens mount, 2c ... Connector, 2d ... Lens discrimination | determination part, 2f ... Iris circuit, 11 ... 1st connection pin (1st pin), 12 ... second connection pin (second pin), 13 ... third connection pin (third pin), 141 ... fourth connection pin (fourth pin)

Claims (5)

  1. 　自動絞り機能を有したレンズ装置が装着されるレンズマウントと、
    　前記レンズマウントに装着されたレンズ装置と電気的に接続する複数の接続端子を有したコネクタと、
    　前記複数の接続端子のうちの一つに電源供給を行ったときの他の複数の接続端子についてのステータス検出結果を基に、前記コネクタに接続されたレンズ装置の種類を判別するレンズ判別部と、
    　を備えることを特徴とするカメラ装置。     A lens mount to which a lens device having an automatic iris function is attached;
    A connector having a plurality of connection terminals electrically connected to the lens device mounted on the lens mount;
    A lens discriminating unit for discriminating the type of the lens device connected to the connector based on the status detection results for the other plurality of connection terminals when power is supplied to one of the plurality of connection terminals; ,
    A camera apparatus comprising:
  2. 　前記コネクタは、前記複数の接続端子として四つの接続端子を有しており、
    　前記レンズ判別部は、前記四つの接続端子のうちの二つについてのステータス検出結果を基に、前記コネクタに接続されたレンズ装置の種類が所定の四種類のうちのいずれであるかを判別する
    　ことを特徴とする請求項１に記載のカメラ装置。     The connector has four connection terminals as the plurality of connection terminals,
    The lens discriminating unit discriminates one of four predetermined types of lens devices connected to the connector based on a status detection result for two of the four connection terminals. The camera apparatus according to claim 1.
  3. 　前記所定の四種類は、ビデオアイリスレンズ、ＤＣアイリスレンズ、Ｐアイリスレンズおよびｉ－ＣＳレンズの四種類である
    　ことを特徴とする請求項２に記載のカメラ装置。     The camera device according to claim 2, wherein the predetermined four types are four types of a video iris lens, a DC iris lens, a P iris lens, and an i-CS lens.
  4. 　カメラ装置のレンズマウントに装着されるレンズ装置であって、
    　前記カメラ装置の側からの制御指示に応じてアイリスの開口量を調整する自動絞り機能と、
    　前記自動絞り機能に対する制御指示を受けるために、前記カメラ装置の側と電気的に接続する複数の接続端子を有したコネクタと、を備え、
    　前記複数の接続端子のうちの一つに電源供給を行ったときの他の複数の接続端子についてのステータスが、前記自動絞り機能を有したレンズ種類に固有のものとなるように構成されている
    　ことを特徴とするレンズ装置。     A lens device mounted on a lens mount of a camera device,
    An automatic iris function that adjusts the iris opening amount in accordance with a control instruction from the camera device;
    A connector having a plurality of connection terminals electrically connected to the camera device side in order to receive a control instruction for the automatic iris function;
    When the power is supplied to one of the plurality of connection terminals, the status for the other plurality of connection terminals is configured to be unique to the lens type having the automatic aperture function. A lens device.
  5. 　前記レンズ種類がｉ－ＣＳレンズであり、
    　前記コネクタは、前記複数の接続端子として四つの接続端子を有しており、
    　前記四つの接続端子のうちの二つについてのステータス検出結果がいずれもハイ状態となるように構成されている
    　ことを特徴とする請求項４に記載のレンズ装置。     The lens type is an i-CS lens;
    The connector has four connection terminals as the plurality of connection terminals,
    The lens apparatus according to claim 4, wherein the status detection results for two of the four connection terminals are all in a high state.
PCT/JP2017/013563 2017-03-31 2017-03-31 Camera device and lens device WO2018179319A1 (en)

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