JP2006325109A - Camera system, optical unit and camera main body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a camera system which requires a short starting time and allows a camera main body side to surely acquire information about an image pickup element, a lens, or the like, an optical unit and the camera main body. <P>SOLUTION: The camera system provided with the optical unit having a photographing optical system and the camera main body which the optical unit is detachably attached to and applies image processing to image data representing object light, wherein the optical unit is provided with an individual information transmitting part for transmitting individual information representing characteristics the optical unit inherently has to other optical units of the same type, and the camera main body is provided with an individual information acquiring part for acquiring individual information, a common information storing part for storing common information representing characteristics that are common among the optical units of the same type, a type identifying part for identifying the type of an optical unit, and an image processing part for applying image processing corresponding to common information in the identified type of the stored common information and the individual information. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an optical unit on which an imaging optical system for imaging subject light is mounted, a camera body to which the optical unit is detachably mounted, and performs predetermined image processing on image data, such an optical unit and a camera body. It is related with the provided camera system.

  2. Description of the Related Art Conventionally, an interchangeable lens camera that uses an interchangeable lens unit with a photographing lens mounted on a camera body with a built-in image sensor is known. In this interchangeable lens camera, the subject light imaged by the photographing lens is received by an image sensor provided on the camera body side to generate photographed image data, so that a photographed image is conventionally recorded on a silver salt film. There is an advantage that the interchangeable photographic lens used in the film type single-lens reflex camera can be reused.

  However, for example, if a large photographic lens with excellent optical performance is mounted on a camera body with a low-resolution, small-sized image sensor, subject light is accurately imaged by the photographic lens. However, there is a problem that the subject light cannot be read with high accuracy and the performance of the photographing lens cannot be fully utilized. In order to solve this problem, a head interchangeable camera has been developed in which a camera head having a built-in photographing lens and an image sensor is attached to a camera body (see, for example, Patent Document 1). According to the head interchangeable cameras described in Patent Document 1, Patent Document 2, and Patent Document 3, by providing a CCD suitable for the size and optical performance of the photographing lens in the lens unit in advance, Taking advantage of the performance, it is possible to acquire high-quality captured images.

  By the way, the captured image data generated by receiving the subject light by the image sensor is subjected to various image processing such as gamma correction, offset position correction, and flaw pixel correction of the image sensor, and then recorded on a recording medium or the like. The In order to perform these image processes on the photographic image data, head information relating to the image sensor and the photographic lens is necessary. In the head interchangeable camera described in Patent Document 1, these head information are stored in the memory on the camera head side. Recorded in advance. When the power of the replaceable head camera is turned on, the head information recorded in the memory on the camera head side is read by the camera body, and when actual shooting is performed, image processing according to the head information is performed on the camera body side. Is applied to the captured image data. However, in order to execute image processing, a large amount of head information such as the number of pixels of the image sensor, the flaw position of the image sensor, the pixel arrangement pattern, and the lens aperture is necessary. Since the head information is read from the camera head, there is a problem that it takes a considerable start-up time.

In this regard, Patent Document 2 describes a head-replaceable camera in which head information is recorded in advance in a memory on the camera body side, and the camera body performs image processing in accordance with the recorded head information. Yes. According to the head replaceable camera described in Patent Document 2, it is not necessary to read out head information from the camera head at the time of activation, so that the activation time can be reduced.
JP 10-191122 A JP 2000-50138 A

  However, according to the head-replaceable camera described in Patent Document 2, when a camera head in which no head information is recorded in the memory on the camera body side is mounted, the head information cannot be acquired on the camera body side. There's a problem.

  SUMMARY OF THE INVENTION In view of the above circumstances, the present invention provides a camera system that has a short start-up time and can reliably acquire information relating to an image sensor, a lens, and the like on the camera body side, an optical unit provided in such a camera system, and a camera The purpose is to provide a body.

The camera system of the present invention that achieves the above object includes an optical unit having a photographing optical system through which subject light passes, and an image representing subject light that forms an image through the photographing optical system, to which the optical unit is detachably mounted. A camera system including a camera body that performs image processing on data;
The optical unit is selected from a plurality of types of optical units, and the optical unit has individual information representing characteristics that the optical unit has for other optical units of the same type in the camera body. It is equipped with an individual information transmission unit to transmit,
The camera body
An individual information acquisition unit for acquiring individual information from the optical unit;
A common information storage unit that stores common information representing one or more types of features common to the same type of optical unit;
A type identification unit for identifying the type of the optical unit;
An image processing unit that performs image processing on the image data according to common information and individual information of the type identified by the type identifying unit among the common information stored in the common information storage unit. And

  According to the camera system of the present invention, common information representing features common to the same type of optical unit is stored on the camera body side, and individual information representing features unique to each optical unit is acquired from the optical unit to obtain common information. And image processing according to the individual information is executed. For this reason, even when the optical unit is replaced, only the individual information is transferred from the optical unit to the camera body, so that necessary information is collected in the camera body, and the amount of information read from the optical unit to the camera body is suppressed. The camera system startup time can be reduced.

In the camera system of the present invention,
"The optical unit is
An ID transmission unit that transmits an ID for specifying the optical unit to the camera body;
The camera body is
An ID receiving unit for receiving the ID;
An individual information storage unit that stores the ID received by the ID reception unit in association with the individual information acquired by the individual information acquisition unit;
The individual information acquisition unit acquires individual information when the ID reception unit receives an ID that is not stored in the individual information storage unit.
The image processing unit performs image processing corresponding to the individual information stored in the individual information storage unit in association with the ID received by the ID reception unit on the image data.
The form is suitable.

  According to this preferred embodiment of the camera system, when the same optical unit is mounted again, it is sufficient to transmit only the ID without transmitting the individual information from the optical unit. The speed can be increased.

In the camera system of the present invention, the camera body includes:
A storage permission unit that permits storage of individual information acquired by the individual information acquisition unit according to an operation,
The individual information storage unit preferably stores the ID and the individual information in association with each other when the storage permission unit permits the storage.

  Since the amount of information that can be stored in the individual information storage unit of the camera body is limited, it is assumed that the individual information of all mounted optical heads cannot be stored. By permitting storage of the individual information by the storage permission unit, only the necessary individual information of the optical unit can be stored, and the memory for the individual information storage unit can be used efficiently.

In the camera system of the present invention, the camera body includes:
It is preferable to provide an information erasure unit that erases individual information specified by an operation among the individual information stored in the individual information storage unit together with an ID associated with the individual information.

  By erasing unnecessary individual information and ID of the optical unit, the memory for the individual information storage unit can be used more efficiently.

An optical unit of the present invention that achieves the above object is an optical unit that is detachably attached to a camera body that performs image processing on image data representing subject light.
A photographic optical system through which subject light passes;
And an individual information transmitting unit that transmits individual information representing characteristics of the optical unit to other optical units of the same type to the camera body.

  According to the optical unit of the present invention, since the unique information indicating the characteristic unique to the optical unit is transmitted to the camera body on which the optical unit is mounted, the camera body side performs image processing according to the unique information. Can do.

  Note that the optical unit according to the present invention is only shown in its basic form here, but this is only for avoiding duplication, and the optical unit according to the present invention is not limited to the above basic form. Various forms corresponding to the respective forms of the camera system described above are included.

In addition, the camera body of the present invention that achieves the above object has image data representing subject light imaged through the photographing optical system, in which an optical unit having a photographing optical system through which the subject light passes is detachably mounted. In the camera body that performs image processing,
The optical unit is selected from a plurality of types of optical units,
An individual information acquisition unit for acquiring individual information from the optical unit;
A common information storage unit that stores common information representing one or more types of features common to the same type of optical unit;
A type identification unit for identifying the type of the optical unit;
An image processing unit that performs image processing on the image data according to the common information and the individual information of the type identified by the type identifying unit among the common information stored in the common information storage unit. .

  According to the camera body of the present invention, common information common to optical units of the same type is stored in advance, and only individual information unique to each optical unit needs to be acquired from the optical unit at the time of startup or the like. The startup time of the entire system can be reduced.

  It should be noted that the camera body according to the present invention is only shown in its basic form here, but this is only for avoiding duplication, and the camera body according to the present invention is not limited to the above basic form. Various forms corresponding to the respective forms of the camera system described above are included.

  According to the camera system, the optical unit, and the camera body of the present invention, it is possible to reduce the activation time and to reliably acquire information relating to the image sensor, the lens, and the like on the camera body side.

  Hereinafter, embodiments of the present invention will be described.

  FIG. 1 is an exploded view of a camera system to which an embodiment of the present invention is applied.

  The camera system 1 shown in FIG. 1 is provided with a plurality of types of camera heads 1_a, 2_a,..., N_a each incorporating a photographic lens and a CCD. The head is selected and used. In the following description, it is assumed that the first camera head 1_a is selected from the plurality of types of camera heads 1_a, 2_a,.

  The camera system 1 includes a camera head 1_a and a camera body 1_b to which the camera head 1_a is detachably attached. The camera heads 1_a, 2_a,..., N_a correspond to an example of the optical unit according to the present invention, and the camera body 1_b corresponds to an example of the camera body according to the present invention.

  A mount 10b is provided on the front side of the camera body 1_b, and a mount connector 10a provided on the camera head is detachably fitted to the mount 10b.

  A release button 21b for taking a still image and a mode setting dial 22b for setting a processing mode (described later) are provided on the upper surface of the camera body 1_b.

  FIG. 2 is a top view of the camera body 1_b shown in FIG.

  In the present embodiment, using the mode setting dial 22b, the processing mode is set to a playback mode (Play) for displaying a shot image, a still image mode (Cam) for shooting a still image, a movie mode (Mov) for shooting a movie, Either a connection mode (Pc) for connecting to an external device such as a personal computer or a setup mode (Set up) for matching the time of a clock built in the camera body 1_b can be set.

  FIG. 3 is a rear view of the camera body 1_b shown in FIG.

  On the back of the camera body 1_b, there are a power switch 23b for turning on the power of the camera system 1, an LCD (Liquid Crystal Display) 28b on which an image and a menu screen are displayed, items on the menu screen displayed on the LCD 28b, and the like. A cross key 24b for selection, a menu button 25b for displaying a menu screen on the LCD 28b, an execution button 26b for determining setting contents, and a cancel button 27b for canceling setting contents are provided. A USB connector 29b for connecting to an external device such as a personal computer is provided on the side surface 1_b.

  FIG. 4 is an internal configuration diagram of the camera system 1 shown in FIG.

  First, the camera head 1_a will be described.

  In the camera head 1_a, various lenses such as a focus lens and a zoom lens, a photographing optical system 11a provided with a motor for driving these various lenses, and a motor in the photographing optical system 11a are controlled to control the focus lens. CCD 12a that receives the subject light imaged through the aperture / focus zoom control unit 17a for controlling the lens position of the zoom lens, the aperture value, and the like, and the photographing optical system 11a, and generates a subject signal representing the subject light. An analog signal processing unit 13a that performs amplification and gain adjustment of the subject signal, an A / D unit 14a that converts the subject signal that is an analog signal into digital image data, a CCD 12a, an analog signal processing unit 13a, and an A / D unit 14a TG (timing generator) 18a that emits a timing signal toward the camera head, 1_a controls various elements of the 1_a, calculates the lens position of the focus lens and zoom lens, the system memory 190a used as a temporary memory at the time of calculation processing by the head CPU 19a, the number of pixels of the CCD 12a and the lens There is provided a non-volatile memory 191a in which head information including the aperture value is recorded. The photographing optical system 11a corresponds to an example of a photographing optical system according to the present invention.

  Further, the camera head 1_a is provided with a 3-wire serial driver 151a and a high-speed serial driver 150a that are also provided in the camera body 1_b. The 3-wire serial driver 151a is for transmitting / receiving head information, a request to the camera body 1_b, and the like to / from the camera body 1_b. The high-speed serial driver 150a transmits object light to / from the camera body 1_b. This is for transmitting and receiving read image data. Various information transmitted and received by the 3-wire serial driver 151a will be described in detail later. The 3-wire serial driver 151a corresponds to an example of an individual information transmission unit and an ID transmission unit according to the present invention.

  In the camera head 1_a, through image data for the through image displayed on the LCD 28b of the camera main body 1_b, which is a subject image currently present within the shooting angle of view when the subject light is received by the CCD 12a, a release button Three types of image data are generated: still image data representing a still image when 13b is pressed, and moving image data representing a moving image. The through image data is temporary data having a low resolution, and is sent to the camera body 1_b by the high-speed serial driver 150a and also to the integrating circuit 16a.

  In addition to the various elements described above, the camera head 1_a includes an integration circuit 16a that detects the luminance (AE detection) and contrast (AF detection) of the subject based on low-resolution image data, and various elements of the camera head 1_a. A power supply control unit 140a for controlling the power supplied to the power supply, a DC / DC converter 101a for adjusting power, and the like are also provided.

  The mount connector 10a of the camera head 1_a is detachably fitted to the mount 10b of the camera body 1_b. Communication is performed between the camera head 1_a and the camera body 1_b through electrical contacts provided on the mount connector 10a and the mount 10b.

  Next, the camera body 1_b will be described.

  The operation of the camera body 1_b is comprehensively controlled by the body CPU 100b. The camera body 1_b receives image data transmitted from the camera head 1_a, a system memory 101b in which a program is stored, a 3-wire serial driver 151b for transmitting / receiving various requests and information to / from the camera head 1_a. A high-speed serial driver 150b, a nonvolatile memory 102b for recording various information received by the 3-wire serial driver 151b, a timer 110b for timer shooting, a calendar clock unit 111b for controlling a calendar clock displayed on the LCD 28b, A USB driver 131b to which a personal computer or the like is connected via the USB connector 29b, a mode setting dial 22b, a cross key 24b, a menu button 25b, an execution button 26b, a cancel button 27b, and the like shown in FIG. A switch / LED 132b that operates under the control of the main body CPU 100b via b, a flash light emitting unit 121b that emits flash light, a flash light emission control unit 120b that controls the amount of light emitted from the flash light emitting unit 121b, and a power source of the camera system 1 are turned on. A power supply SW 23b, a battery 142b for supplying power to the camera system 1, a power control unit 140b for controlling power supplied from the battery 142 to each element of the camera body 1_b, a DC / DC converter 143b for adjusting power, and a high-speed serial driver The digital signal processing unit 109b that performs various processes such as compression processing on the image data received at 150b, the digital signal processing control unit 103b that controls the digital signal processing unit 109b, and the through image data received by the high-speed serial driver 150b are temporarily stored. Recorded frame LCD memory 105b, LCD control unit 105b for controlling display on LCD 28b, LCD 28b for displaying various menu screens and through images based on through image data, and U for controlling transmission / reception of screen information to / from camera head 1_a / I information control unit 160b, a memory card slot 107b into which a memory card 108b in which image data generated during actual shooting is compressed by the digital signal processing unit 109b and compressed image data is recorded via the card I / F 106b is loaded. Etc. are provided. The 3-wire serial driver 151b is an example of the individual information acquisition unit and the ID reception unit according to the present invention, and the nonvolatile memory 102b is an example of the common information storage unit and the individual information storage unit according to the present invention. . The main body CPU 100b is an example of a type identification unit according to the present invention, and the digital signal processing unit 109b is an example of an image processing unit according to the present invention. The main body CPU 100b is combined with various switches included in the switch / LED unit 132. This corresponds to an example of each of the storage permission unit and the information erasing unit referred to in the present invention.

  The camera system 1 of the present embodiment is basically configured as described above.

  Here, in the digital signal processing unit 109b, image processing is performed on the captured image data, but in order to execute the image processing, head information including the number of pixels of the CCD 12a, a scratched pixel position, and the like is necessary. Become.

  FIG. 5 is a conceptual diagram showing an example of the head information, and FIG. 6 is a diagram for explaining the meaning of symbols in the head information.

  The head information 200 shown in FIG. 5 includes, in order from the top, a head ID 201 for identifying the camera head 1_a, the arrangement of the color filter array of the CCD 12a, and the number of pixels of the CCD 12a (in the case of a still image, in the case of a through image, a moving image 3), the coordinates indicating the effective capture position and the number of pixels on the imaging surface of the CCD 12a, the coordinates indicating the position of the optical black serving as the reference for the black level, the component order, and the bit depth of the A / D conversion Type information 202 composed of (number of bits for expressing one pixel) and individual information 203 indicating the position coordinates of the damaged pixel of the CCD 12a are included.

  The head ID 201 (FUJI F810 1234) is configured by combining a manufacturer name (FUJI), a model name (F810), and a serial number (1234). That is, the type of the camera head 1_a is identified from the manufacturer name and model name of the head ID 201 (hereinafter collectively referred to as the type code), and the camera head 1_a is uniquely identified from the serial number of the head ID 201. The type information 202 is information common to camera heads of the same type, and the individual information 203 is information that is different for each camera head even for the same type of camera head. The head ID 201 corresponds to an example of an ID referred to in the present invention, the type information 202 corresponds to an example of common information referred to in the present invention, and the individual information 203 corresponds to an example of individual information referred to in the present invention.

  In the head information 200 shown in FIG. 5, the number of pixels is indicated by a combination (W, H) of the number W of vertical pixels and the number H of horizontal pixels. As shown in FIG. 6, this (W, H) indicates the number of pixels in the horizontal direction and the number of pixels in the vertical direction, and the maximum number of pixels in the width direction of the imaging surface P_CCD is represented by the symbol H1. Represents the maximum number of pixels in the height direction of the imaging surface P_CCD. That is, for example, when the coordinates representing the effective capture position are (W1, H1), it is indicated that all the pixels of the CCD 12a are used.

  An area called optical black is provided on the imaging surface P_CCD of the CCD 12a to notify the digital signal processing unit 109b on the camera body 1_b side of the black level when the CCD 12a takes an image. The start coordinates (XOB) and length (XOB) of this optical black area are also shown in the CCD information.

  Further, the coordinate information (X, Y) of the flaw due to the flaw position of the CCD 12a is also shown in the CCD information. In the example of FIG. 4, it is shown that there are scratched pixels at three locations (Xt1, Yt1), (Xt2, Yt2), and (Xt3, Yt3).

  The digital signal processing unit 109b of the camera body 1_b acquires such head information 200 and performs processing according to the head information 200. For example, as shown in FIG. 6, when it is reported that there are scratches at three locations (Xt1, Yt1), (Xt2, Yt2), and (Xt3, Yt3), pixels adjacent to these pixels are used. Interpolation processing is performed.

  In the present embodiment, the head information 200 is stored in advance in the nonvolatile memory 191a of the camera head 1_a, and the type information 202 of the camera head 1_a is previously stored for the camera head 1_a of the same manufacturer as the camera body 1_b. The information is stored in the nonvolatile memory 102b of the camera body 1_b in association with the type code (manufacturer name + model name). On the camera body 1_b side, the individual information 203 is basically read from the camera head 1_a, and image processing is performed according to the type information 202 stored in the camera body 1_b and the read individual information 203. Executed. Hereinafter, a series of processing for acquiring the head information 200 from the camera head 1_a and executing image processing will be described.

  FIG. 7 is a flowchart showing a series of processes for acquiring the head information 200 by the camera body 1_b.

  First, when the photographer switches the power SW 23b of the camera body 1_b to ON, the power stored in the battery 142b is supplied to various elements of the camera system 1 and the camera system 1 is activated (step S11 in FIG. 7). .

  Subsequently, a request for transmitting the head ID is transmitted from the main body CPU 100b of the camera main body 1_b to the head CPU 19a of the camera head 1_a. The head CPU 19a acquires the head ID 201 from the head information 200 stored in the nonvolatile memory 191a of the camera head 1_a, and sends the head ID 201 to the main body CPU 100b via the three-wire serial drivers 151a and 151b (FIG. 7). Step S12).

  The main body CPU 100b searches the type information stored in the non-volatile memory 102b of the camera main body 1_b for information corresponding to the sent head ID 201 (step S13 in FIG. 7).

  FIG. 8 is a table showing an example of information stored in the nonvolatile memory 102b of the camera body 1_b.

  As shown in FIG. 8, in the nonvolatile memory 102b of the camera body 1_b, a type code composed of a manufacturer name and a model name of the head ID 201 (maker name + model name + serial number), and the type code thereof are included. Is registered in association with the type information 202 common to the camera head of the type represented by the type, and the type code, the serial number of the camera head classified into the type represented by the type code, and the serial number are Individual information 203 specific to the camera head to be represented is registered in association with it. In the following description, it is assumed that the information shown in the table of FIG. 8 is stored in the nonvolatile memory 102b.

  First, the case where the camera head 1_a registered in the table of FIG. 8 is attached to the camera body 1_b will be described.

  For example, when the head ID 201 “FUJI F01 01” is sent from the camera head 1_a, the type code “FUJI F01” of this head ID 201 exists in the table of FIG. 8, and therefore corresponds to the head ID 201. The type information 202_1 is registered (step S13 in FIG. 7: Yes). The main body CPU 100b acquires the type information 202_1 associated with the type code “FUJI F01” (step S14 in FIG. 7).

  Subsequently, the main body CPU 100b searches the individual information 203 stored in the nonvolatile memory 102b of the camera main body 1_b for whether there is a piece corresponding to the sent head ID 201 (step S15 in FIG. 7).

  When the head ID 201 is “FUJI F01 01”, the serial number “01” of the head ID 201 exists in the column of the type code “FUJI F01” in the table of FIG. Individual information 203_1 to be registered is registered (step S15 in FIG. 7: Yes). The main body CPU 100b acquires the individual information 203_1 associated with the serial number “01” in the column of the type code “FUJI F01” (step S16 in FIG. 7).

  When shooting is actually performed and shooting image data is generated, the digital signal processing unit 109b executes image processing according to the acquired type information 202_1 and individual information 203_1. By storing type information common to the camera head 1_a of the same model on the camera body 1_b side, it is only necessary to read out individual information unique to the camera head 1_a from the camera head 1_a, thereby reducing the startup time. can do. Further, by saving the individual information together on the camera body 1_b side, the startup time can be further increased.

  Next, a case will be described in which the head ID 201 in which the type information is registered but the individual information is not registered is sent in step S13 of FIG.

  In step S13 of FIG. 7, for example, when the head ID 201 “FUJI F01 03” is sent to the camera body 1_b, the type code “FUJI F01” of the head ID 201 is included in the table of FIG. Since the type information corresponding to the head ID 201 is registered (step S13 in FIG. 7: Yes), the main body CPU 100b acquires the type information 202_1 associated with the type code “FUJI F01” (FIG. 7). Step S14).

  Further, since the serial number “03” of the head ID 201 is present and the serial number “03” does not exist in the column of the type code “FUJI F01” in the table of FIG. 8, individual information corresponding to the head ID 201 is registered. (Step S15 in FIG. 7: No). The main body CPU 100b reads the individual information from the camera head 1_a and starts an individual information registration process for registering the individual information in the camera main body 1_b (step S17 in FIG. 7).

  FIG. 9 is a flowchart showing the flow of the individual information registration process shown in step S17 of FIG.

  The main body CPU 100b of the camera main body 1_b transmits a request for transmitting individual information to the head CPU 19a of the camera head 1_a. The head CPU 19a acquires the individual information 203 from the head information 200 stored in the nonvolatile memory 191a of the camera head 1_a, and sends the individual information 203 to the main body CPU 100b via the 3-wire serial drivers 151a and 151b.

  When the main body CPU 100b receives the individual information 203 (step S21 in FIG. 9), the main body CPU 100b displays an individual information storage screen prepared in advance on the LCD 28b (step S22 in FIG. 9).

  FIG. 10 is a diagram illustrating an example of a screen displayed on the LCD 28b.

  As shown in Part (A) of FIG. 10, the LCD 28b is notified that “the information of the mounted camera head 1_a is not registered” and “whether or not the received individual information is registered” is notified. An information storage screen 310 is displayed. The photographer operates the cross key 24b shown in FIG. 3 to select either registration / non-registration of individual information. The selected contents are transmitted to the main body CPU 100b.

  When it is selected not to register the individual information (step S23 in FIG. 9: No), the acquired individual information is not registered in the nonvolatile memory 102b, and when the camera system 1 is turned off, the individual information is stored. Is erased.

  When registration of individual information is selected (step S23 in FIG. 9: Yes), a new serial number “03” is added to the column of the type code “FUJI F01” acquired from the head ID 201, and the acquired individual Information is registered (step S24 in FIG. 9).

  Thus, according to the camera system 1 of the present embodiment, even when a new camera head 1_a in which individual information is not registered in advance is mounted, the individual information of the camera head 1_a can be newly registered. Further, since the photographer can select registration / non-registration of individual information, only individual information of camera heads that are frequently used can be registered, and the nonvolatile memory 102b can be used effectively.

  Next, a case will be described in which a head ID 201 in which both type information and individual information are not registered is sent in step S13 of FIG.

  For example, when the head ID 201 “FUJI F03 01” is sent to the camera body 1_b, the type code “FUJI F03” of this head ID 201 is not included in the table of FIG. The type information is not registered (step S13 in FIG. 7: No). The main body CPU 100b reads out both type information and individual information from the camera head 1_a, and starts type information registration processing for registering the type information and individual information in the camera main body 1_b (step S18 in FIG. 7).

  FIG. 11 is a flowchart showing the flow of the type information registration process shown in step S18 of FIG.

  The main body CPU 100b of the camera main body 1_b transmits a request for transmitting type information and individual information to the head CPU 19a of the camera head 1_a. The head CPU 19a acquires the type information 202 and the individual information 203 from the head information 200 stored in the nonvolatile memory 191a of the camera head 1_a, and sends them to the main body CPU 100b.

  When the main body CPU 100b receives the type information 202 and the individual information 203 (steps S31 and S32 in FIG. 11), the main body CPU 100b displays a prepared type information storage screen on the LCD 28b (step S33 in FIG. 11).

  As shown in part (B) of FIG. 10, the LCD 28b is notified that “the information of the attached camera head 1_a is not registered” and “whether or not the received type information and individual information are registered”. The type information storage screen 320 is displayed. The photographer operates the cross key 24b shown in FIG. 3 to select registration / non-registration of type information and registration / non-registration of individual information. The selected contents are transmitted to the main body CPU 100b.

  When it is selected not to register the type information (step S34 in FIG. 11: No), even if the registration of individual information is selected, the type information and the individual information are not registered in the nonvolatile memory 102b, and the camera system When the power of 1 is turned off, the information is deleted.

  When the registration of the type information is selected (step S34 in FIG. 11: Yes), the type code “FUJI F03” acquired from the head ID 201 is newly registered in the table shown in FIG. 8 (step in FIG. 11). S35).

  In addition, when the type information is selected to be registered, but the individual information is not registered (step S36 in FIG. 11: No), only the type information is registered, and the individual information is not registered.

  When registration is selected as the type information, and when registration is also selected as individual information (step S36 in FIG. 11: Yes), a new serial number is added to the column of the type code “FUJI F03” in the table of FIG. “01” and the acquired individual information are registered (step S37 in FIG. 11).

  Thus, when the individual information and the type information are not registered, by receiving them from the camera head 1_a, the individual information and the type information can be surely acquired on the camera body 1_b side.

  Here, while the various camera heads 1_a are mounted and the type information and the individual information are registered, the remaining memory capacity of the nonvolatile memory 102b may be reduced. In the camera system 1 of the present embodiment, icons for displaying a list of type information and individual information stored in the nonvolatile memory 102b are prepared in the menu screen. When the photographer selects an icon, an information list screen 330 shown in part (C) of FIG. 10 is displayed.

  On the information list screen 330, a type code corresponding to the type information stored in the nonvolatile memory 102b and a serial number corresponding to the individual information are displayed in association with each other. When the photographer operates the cross key 24b shown in FIG. 3 to select the type code or serial number in the information list screen 330 and selects the delete button, the selected content is transmitted to the main body CPU 100b. The main body CPU 100b deletes the selected type code and serial number, and the corresponding type information and individual information from the nonvolatile memory 102b.

  As described above, by deleting the registered information, the nonvolatile memory 102b can be used more efficiently.

  Here, in the above description, an example in which a lens unit in which an imaging element and an imaging optical system are incorporated together is used as the optical unit. However, the optical unit according to the present invention does not include an imaging element. May be. In this case, the image sensor may be provided in the camera body, or may be provided in an adapter that connects the camera body and the optical unit.

  In recent years, a liquid lens that adjusts the refractive index of light by applying a voltage to a liquid contained in a container and changing the shape of the liquid surface has been developed. In the above, an example in which a normal lens is used as the imaging optical system according to the present invention has been described. However, the imaging optical system according to the present invention may be a liquid lens or the like. In this case, “driving the imaging optical system” refers to an operation of applying a voltage to the liquid so as to perform an action equivalent to moving a normal lens in the optical axis direction.

1 is an exploded view of a camera system to which an embodiment of the present invention is applied. It is a top view of camera body 1_b shown in FIG. It is a rear view of the camera main body 1_b shown in FIG. It is an internal block diagram of the camera system 1 shown in FIG. It is a conceptual diagram which shows an example of head information. It is a figure explaining the meaning of the code in head information. It is a flowchart which shows a series of processes which acquire the head information 200 with the camera main body 1_b. It is a table | surface which shows an example of the information memorize | stored in the non-volatile memory 102b of the camera main body 1_b. It is a flowchart figure which shows the flow of the individual information registration process shown to step S17 of FIG. It is a figure which shows the example of the screen displayed on LCD28b. It is a flowchart figure which shows the flow of the classification information registration process shown to step S18 of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Camera system 1_a, 2_a, ..., n_a Lens unit 10a Mount connector 11a Image pick-up optical system 101a DC / DC converter 101b System memory 12a CCD
13a Analog signal processing unit 14a A / D unit 140a Power supply control unit 150a High-speed serial driver 151a 3-wire serial driver 16a Integration circuit 17a Aperture / focus zoom control unit 18a TG
19a Head CPU
190a System memory 191a Non-volatile memory 1_b Camera body 10b Mount 21b Release button 22b Mode setting dial 24b Four-way controller 25b Menu button 26b Run button 27b Cancel button 28b LCD
29b USB connector 23b Power switch
102b Non-volatile memory 103b Digital signal processing control unit 104b Frame memory 105b LCD control unit 106b Card I / F
107b memory card slot 108b memory card 109b digital signal processing unit 110b timer 111b calendar clock unit 120b flash emission control unit 121b flash emission unit 131b USB driver 132b switch / LED
133b I / O
140b Power supply control unit 141b I / O
142b Battery 143b DC / DC converter 150b High-speed serial driver 151b 3-wire serial driver

Claims (6)

An optical unit having a photographing optical system through which subject light passes, and a camera body on which image processing is performed on image data representing subject light imaged through the photographing optical system, the optical unit being detachably mounted. A camera system comprising:
The optical unit is selected from a plurality of types of optical units, and the optical unit has individual information representing characteristics that the optical unit has for other optical units of the same type. It is equipped with an individual information transmission unit that transmits to the main body,
The camera body is
An individual information acquisition unit for acquiring the individual information from the optical unit;
A common information storage unit that stores common information representing one or more types of features common to the same type of optical unit;
A type identifying unit for identifying the type of the optical unit;
An image processing unit that performs image processing on the image data according to the common information in the type identified by the type identifying unit among the common information stored in the common information storage unit and the individual information. A camera system characterized by The optical unit is
An ID transmission unit that transmits an ID for identifying the optical unit to the camera body;
The camera body is
An ID receiving unit for receiving the ID;
An individual information storage unit that stores the ID received by the ID reception unit and the individual information acquired by the individual information acquisition unit in association with each other;
The individual information acquisition unit acquires the individual information when the ID reception unit receives an ID that is not stored in the individual information storage unit,
The image processing unit performs image processing corresponding to the individual information stored in the individual information storage unit in association with the ID received by the ID reception unit, on the image data. The camera system according to claim 1. The camera body is
A storage permission unit that permits the storage of the individual information acquired by the individual information acquisition unit according to an operation;
The camera system according to claim 2, wherein the individual information storage unit stores the ID and the individual information in association with each other when the storage permission unit permits the storage. The camera body is
3. The information erasure unit for erasing individual information specified by an operation among the individual information stored in the individual information storage unit together with an ID associated with the individual information. Camera system. In an optical unit that is detachably attached to a camera body that performs image processing on image data representing subject light,
A photographic optical system through which subject light passes;
An optical unit comprising: an individual information transmitting unit configured to transmit individual information representing a characteristic of the optical unit to another optical unit of the same type to the camera body. In a camera body for performing image processing on image data representing subject light imaged through the photographing optical system, which is detachably mounted with an optical unit having a photographing optical system through which the subject light passes,
The optical unit is selected from a plurality of types of optical units;
An individual information acquisition unit for acquiring the individual information from the optical unit;
A common information storage unit that stores common information representing one or more types of features common to the same type of optical unit;
A type identifying unit for identifying the type of the optical unit;
An image processing unit that performs image processing on the image data according to the common information in the type identified by the type identifying unit among the common information stored in the common information storage unit and the individual information. The camera body characterized by.

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