JP2019144513A - Lens device, imaging device, control method, and program - Google Patents

Abstract

To provide a lens device that is advantageous in terms of variety of shooting conditions.SOLUTION: A lens device capable of communicating with a display device including a display includes: a lens barrel part; an illumination part disposed at the front end of a lens barrel; a first control part for controlling the illumination part; and a communication unit that can communicate with the display device, receives control information for controlling the illumination part from the display device, and outputs the control information from the display device to the control unit.SELECTED DRAWING: Figure 1

Description

The present invention relates to a lens apparatus, an imaging apparatus, a control method, and a program.

  In recent years, macro photography, which is photography close to a subject, is known as one of photography techniques. In such macro photography, there is a lens device in which a white light emitting diode is provided at the lens tip position. In the illumination device of Patent Document 1, a white light emitting diode provided at the lens tip can be turned on and off by a switch provided in the photographing lens. The automatic illumination device of Patent Document 2 automatically controls a white light emitting diode according to the amount of subject light measured by a single lens reflex camera equipped with a photographing lens.

JP 2006-337422 A JP 2007-47192 A

  However, in the illumination device of Patent Document 1, the amount of white light-emitting diode cannot be changed. Moreover, in the automatic illumination apparatus of patent document 2, although the lighting number of a white light emitting diode is controlled automatically, illumination cannot be changed according to a photographer's intention.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a lens device that is advantageous in terms of variety of shooting conditions.

  In order to solve the above problems, the present invention provides a lens device that can communicate with a display device having a display, and includes a lens barrel portion, an illumination portion disposed at a front end portion of the lens barrel, and an illumination portion. A first control unit for controlling, a communication unit capable of communicating with the display device, receiving control information for controlling the illumination unit from the display device, and outputting the control information from the display device to the control unit, It is characterized by providing.

  According to the present invention, it is possible to provide a lens device that is advantageous in terms of diversity of shooting conditions.

It is a block diagram which shows the structure of the camera system containing the lens apparatus which concerns on 1st Embodiment. It is an external view of the lens apparatus which concerns on 1st Embodiment. It is a flowchart which shows an example of control of the illumination part by operation of an operation switch. It is a figure which shows an example of the operation screen of a 1st operation mode. It is a figure which shows an example of the operation screen of a 2nd operation mode. It is a flowchart which shows the control method of the illumination part by a camera main body. It is a figure which shows an example of the operation screen which concerns on 2nd Embodiment. It is a flowchart which shows an example of control of the illumination part by the operation switch in a 1st switch mode. It is a flowchart which shows an example of control of the illumination part by the operation switch in 2nd switch mode. It is a block diagram which shows the structure of the camera system containing the lens apparatus which concerns on 3rd Embodiment. It is a figure which shows an example of the operation screen displayed on the display of a portable terminal. It is a flowchart explaining an exclusion process. It is a flowchart which shows the control method of the illumination part by a portable terminal. It is a figure which shows an example of the operation screen displayed on the display of the portable terminal which concerns on 4th Embodiment. It is a figure which shows an example of the operation screen displayed on the display of the portable terminal which concerns on 5th Embodiment. It is a flowchart which shows an example of control of the illumination part by the operation switch in the 2nd switch mode which concerns on 5th Embodiment.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
(First embodiment)

  FIG. 1 is a block diagram illustrating a configuration of a camera system including a lens device according to the first embodiment. In this embodiment, a camera system including a lens device is used as an example, but an imaging device in which a lens device such as a digital still camera and a camera body are integrated may be used. The camera system 100 includes a camera body 1 such as a digital camera or a video camera, and a lens device 2 that is detachably attached to the camera body 1. FIG. 2 is an external view of the lens apparatus according to the first embodiment. FIG. 2 shows an external appearance of the lens apparatus 2 when viewed from the front (subject side) obliquely.

  The camera body 1 and the lens device 2 are mechanically connected by coupling a camera mount 1a and a lens mount 2a provided to each other, and further communicate as communication units provided to the camera mount 1a and the lens mount 2a, respectively. The terminals 11 and 21 are connected so as to be able to communicate with each other. The communication terminals 1l and 2l perform communication such as camera information, lens information, and commands (for example, control information) from the camera.

  The camera body 1 includes an image sensor 1b, an image processing unit 1f, and a camera CPU 1c. The image sensor 1b is configured by a CMOS sensor, a CCD sensor, or the like that captures (photoelectric conversion) a subject image formed by a photographing optical system in the lens device 2. The image processing unit 1f generates a captured image using the output from the image sensor 1b. The camera body 1 is a display device that includes a display 1d.

  The photographing optical system in the lens apparatus 2 includes a focus lens that moves in the direction of the optical axis O to adjust the focus, a diaphragm that adjusts the amount of light, and the like. The lens device 2 in the present embodiment is a macro photography interchangeable lens having a photography optical system suitable for close-up photography. This lens device 2 has a focal length of about 30 mm to 70 mm, for example, and is used at an imaging distance of about 10 mm to 50 mm from the light emitting unit.

  The camera CPU 1 c controls the operation within the camera body 1. In response to the operation of the operation button 1h provided on the camera body 1 by the user, the camera CPU 1c transmits a command corresponding to the operation to the lens device 2 via the communication terminals 11 and 21, and AF ( This is a control unit on the camera body 1 side that controls shooting preparation operations such as (autofocus) and AF, and shooting operations for acquiring recording images. In AF, the camera CPU 1c calculates the defocus amount using the output from the image sensor 1b, and the lens provided in the lens apparatus 2 uses the information on the drive amount of the focus lens according to the defocus amount as the focus drive information. It transmits to CPU2b.

  In AE (automatic exposure), the camera CPU 1c measures the subject luminance using the output from the image sensor 1b, and transmits information on the driving amount of the diaphragm according to the subject luminance to the lens CPU 2b as aperture driving information. . The camera CPU 1c calculates information received by the image sensor 1b and displays the shooting information on the display 1d.

  On the other hand, the lens CPU 2b transmits lens information stored in the lens storage unit 2e provided in the lens device 2 to the camera CPU 1c in response to the lens device 2 being attached to the camera body 1. The lens information includes a focal length of the photographing optical system, an open / minimum aperture value, information on the peripheral light amount, information on the focus sensitivity, and the like. Upon receiving the lens information, the camera CPU 1 c stores the lens information in a camera storage unit 1 e provided in the camera body 1.

  In addition, the lens device 2 is provided with a substrate 2f on which a focus drive circuit, a diaphragm drive circuit, and the like are mounted, and a focus actuator 2k such as a stepping motor or a vibration type motor that drives the focus lens. The focus drive circuit moves the focus lens by driving the focus actuator 2k according to the focus drive information received from the camera CPU 1c. Thereby, AF is performed. The aperture drive circuit operates the aperture by driving an aperture actuator such as a stepping motor in accordance with the aperture drive information received from the camera CPU 1c. Thereby, an appropriate aperture value is set.

  Further, a plurality of light emitting units 2i as light emitting units are provided in the circumferential portion surrounding the photographing optical system in the front end portion (end portion on the subject side) of the lens barrel portion of the lens device 2 at positions spaced apart in the circumferential direction ( For example, two) are provided. The light emitting section 2i is formed of a light emitting diode (LED) and has a light emitting section of three primary colors inside the light emitting diode or a form in which LEDs of each color of R (red) G (green) B (blue) are arranged. There may be. The light emitting unit 2i can emit not only white monochromatic light but also RGB colors other than white light, and can also change chromaticity. The light emitting unit 2i is connected to the lens CPU 2b. The above-described lens barrel portion is a portion indicated by a symbol LBP in FIG.

  On the front side (subject side) of the light emitting unit 2i, as shown in FIG. 2, a diffusing plate 2j extending annularly in the circumferential direction is provided so as to surround the periphery of the front surface of the photographing optical system. On the back side of the diffusion plate 2j, there is provided a light guide member 2h that guides the illumination light emitted from each light emitting portion 2i in the circumferential direction so as to enter a wide range on the back surface of the diffusion plate 2j. Illumination light emitted from the plurality of light emitting units 2i is incident on the back surface of the diffusing plate 2j through the light guide member 2h provided in each of the light emitting units 2i, and is diffused by the diffusing plate 2j. Irradiate toward the subject. The illumination part IA is comprised by the some light emission part 2i, the light guide member 2h, and the diffuser plate 2j.

  An operation switch 2g (operation unit) operated by a user to control the illumination unit IA is provided on the outer peripheral surface of the lens device 2. The operation switch 2g may be a push switch or a slide switch. Moreover, the sensor etc. which consist of a protective film and an infinite number of electrodes may be sufficient. The operation switch 2g is connected to the lens CPU 2b and can change the luminance, chromaticity, or on / off of the illumination unit.

  The lens CPU 2b is a control unit on the lens device 2 side that controls the illumination unit IA in accordance with the operation of the operation switch 2g. For example, the lens CPU 2b controls lighting and extinguishing of the plurality of illumination units IA in accordance with an on operation and an off operation of the operation switch 2g. In addition, the lens CPU 2b changes the luminance and the chromaticity of the plurality of illumination units IA in accordance with the operation of the operation switch 2g. Further, the lens CPU 2b changes the control method of the illumination unit IA by the operation switch 2g in response to a command from the camera body 1.

  For example, when the operation switch 2g is formed of a push switch, the lens CPU 2b may be programmed so that the state of the illumination unit IA can be controlled by the number of times the operation switch 2g is pressed. Good. When the operation switch 2g is a slide switch, it may be programmed to detect the slide position of the operation switch 2g and control the state of the illumination unit IA based on the detected position.

  FIG. 3 is a flowchart showing an example of control of the illumination unit IA by operating the operation switch 2g. For example, the illumination unit IA can be controlled as follows by operating the operation switch 2g. First, when the operation switch 2g is pressed shorter than a predetermined time from the OFF state (S0) of the illumination unit IA (S1, No), the illumination units IA on both sides are lit in a strong mode (Hi) state with a large amount of light (S21). . When the operation switch 2g is pressed longer than a predetermined time from the off state (S0) of the illumination unit IA (S1, Yes), only the right illumination unit IA is turned on in the strong mode (S23).

  When the operation switch 2g is pressed for a shorter time than the predetermined time (S3, No) from the state of S21 (the illumination units IA on both sides are lit in the strong mode), the weak mode (Lo) where the illumination units IA on both sides have a small amount of light It is lit in the state (S22). When the operation switch 2g is pressed longer than the predetermined time from the state of S21 (S3, Yes), the right illumination unit IA is turned on in the strong mode (S23). When the operation switch 2g is pressed for a shorter time than the predetermined time from the state of S22 (the illumination units IA on both sides are lit in the weak mode) (S6, No), the illumination unit IA is turned off (S0).

  When the operation switch 2g is pressed longer than the predetermined time from the state of S22 (S6, Yes), the right illumination unit IA is turned on in the strong mode (S23). When the operation switch 2g is pressed for less than a predetermined time from the state of S23 (the right illumination unit IA is lit in the strong mode) (S5, No), the right illumination unit IA is lit in the weak mode (S24). . When the operation switch 2g is pressed longer than the predetermined time from the state of S23 (S5, Yes), the illumination units IA on both sides are turned on in the strong mode (S21).

  When the operation switch 2g is pressed for a shorter time than the predetermined time from the state of S24 (the state where the right illumination unit IA is lit in the weak mode) (S7, No), the left illumination unit IA is lit in the strong mode (S25). . When the operation switch 2g is pressed longer than the predetermined time from the state of S24 (S7, Yes), the illumination units IA on both sides are turned on in the weak mode (S22). When the operation switch 2g is pressed for less than a predetermined time from the state of S25 (the left illumination unit IA is lit in the strong mode) (S8, No), the left illumination unit IA is lit in the weak mode (S26). . When the operation switch 2g is pressed longer than the predetermined time from the state of S25 (S8, Yes), the illumination units IA on both sides are turned on in the strong mode (S21).

  When the operation switch 2g is pressed for a shorter time than the predetermined time from the state of S26 (the left illumination unit IA is lit in the weak mode) (S9, No), the right illumination unit IA is lit in the strong mode (S23). . When the operation switch 2g is pressed longer than the predetermined time from the state of S26 (S9, Yes), the illumination units IA on both sides are turned on in the weak mode (S22).

  As described above, the left and right lighting states and intensities of the illumination unit IA can be changed by the operation switch 2g provided in the lens device 2. However, in the operation using only the operation switch 2g, the operation until a desired illumination state is obtained may be complicated. Further, there is a limitation in variations only by operating one operation switch 2g. Therefore, the lens CPU 2b receives the control information of the illumination unit IA from the camera body 1 via the communication terminals 11 and 21 and controls the illumination unit IA based on the control information. Here, the control information includes luminance information, chromaticity information, on / off information, and the like of the illumination unit IA.

  FIG. 4 is a diagram illustrating an example of the operation screen in the first operation mode. The camera body 1 is provided with an operation button 1h, for example. For example, when the user presses the operation button 1h, the operation screen of the illumination unit IA is displayed on the display 1d.

  The display 1d is configured by a touch panel, for example, and has a structure that allows the user to input control information by touching a predetermined position on the screen. That is, the display 1d is also an input unit for inputting control information. In the touch panel, a capacitance type sensor or a pressure sensitive type sensor is configured on the entire surface of the liquid crystal panel, and detects a contact position by contact with a finger or a pen.

  This figure has shown an example of the operation screen of the operation mode (1st operation mode) which changes the lighting state and intensity | strength of the right and left of the illumination part IA. The user touches the operation display 1d1 displayed on the display 1d with a finger or a pen, and changes the lighting state and intensity on the left and right of the illumination unit IA. The control information input to the display 1d is transmitted from the communication terminal 11 on the camera body 1 side to the communication terminal 21 on the lens device 2, and the communication terminal 21 outputs the received control information to the lens CPU 2b. The lens CPU 2b controls the illumination unit IA according to the received control information. For example, when the operation display 1d1 “left strong” displayed on the display 1d is selected, the lens CPU 2b lights the left illumination unit IA in the high mode state. With such a configuration, it is possible to realize a user's desired lighting state with a simple operation.

  FIG. 5 is a diagram illustrating an example of the operation screen in the second operation mode. For example, the user can change the operation mode of the illumination unit IA by operating the operation button 1h. In the second operation mode, two sliders 1d2 are displayed on the operation screen. In the second operation mode, the lighting intensities of the left and right illumination units IA can be changed by moving the slider 1d2. By operating with the slider 1d2, it becomes possible to adjust the lighting intensity of the illumination unit IA almost steplessly.

  The lighting intensity information (control information) of the illumination unit IA input to the display 1d is transmitted from the communication terminal 11 to the communication terminal 21, and the communication terminal 21 outputs the received control information to the lens CPU 2b. The lens CPU 2b calculates a light emission amount according to the received control information, and turns on the illumination unit IA.

  Here, a communication state between the camera body 1 and the lens device 2 will be described. FIG. 6 is a flowchart showing a method for controlling the illumination unit IA by the camera body 1. First, an operation mode is set by the user on the camera body 1 (S01). Next, control information corresponding to the operation mode set by the user is input. (S02). Next, control information is communicated from the communication terminal 11 on the camera body 1 side to the communication terminal 21 on the lens side (S03). The control information communicated to the lens device 2 side is stored in the lens storage unit 2e in the lens device 2 (S04). Based on the communicated control information, the lens CPU 2b calculates the amount of light (S05), and the luminance of the illumination unit IA is controlled (S06).

As described above, by controlling the illumination unit IA using the camera body 1, it is possible to create abundant shooting situations.
(Second Embodiment)

  FIG. 7 is a diagram illustrating an example of an operation screen according to the second embodiment. In addition, the same structure as 1st Embodiment is shown with a same sign, and description is abbreviate | omitted. The lens device according to this embodiment can change the chromaticity of the illumination unit IA. FIG. 7 is an example of an operation mode operation screen for changing the chromaticity of the illumination unit IA.

  On the display 1d, a chromaticity adjustment area 1d3, a luminance adjustment area 1d4, and a switch mode change display 1d5 are displayed. The chromaticity adjustment area 1d3, the luminance adjustment area 1d4, and the switch mode change display 1d5 are displayed, for example, so as to overlap the image being captured.

  In the chromaticity adjustment area 1d3, colors generated at a ratio of the three primary colors of RGB are displayed, and the light color of the illumination unit IA provided in the lens device 2 can be changed by the user selecting an arbitrary point. . For example, a slider is displayed in the luminance adjustment area 1d4, and the luminance of the color selected in the chromaticity adjustment area 1d3 can be arbitrarily changed.

  The control information of the illumination unit IA input to the camera side by these operations is transmitted to the lens CPU 2b through the communication terminal 11 and the communication terminal 21. The communication state between the camera body 1 and the lens device 2 is the same as the flow shown in FIG. 6 of the first embodiment. In S06, the luminance and chromaticity of the illumination unit IA are controlled by programming included in the lens CPU 1c. It changes according to information. Since the operation screen is displayed overlapping the real-time display of the photographed image, it is possible to check the status of the subject illuminated by the illumination unit IA in real time.

  The switch mode change display 1d5 is a display for selecting control of the illumination unit IA that can be operated by the operation switch 2g provided in the lens device 2. That is, the information is related to the control of the illumination unit IA based on the operation of the operation switch 2g. For example, it is a selection display that allows selection of whether to change the luminance of the illumination unit IA or to change the chromaticity of the left and right illumination units IA by operating the operation switch 2g.

  Here, switch modes that can be selected by the switch mode change display 1d5 will be described with reference to FIGS. FIG. 8 is a flowchart showing an example of control of the illumination unit IA by the operation switch 2g in the first switch mode. In the first switch mode, the luminance of the illumination unit IA is changed with the operation switch 2g.

  An operation screen shown in FIG. 7 is displayed on the display 1d. On the operation screen, a chromaticity adjustment area 1d3, a luminance adjustment area 1d4, and a switch mode change display 1d5 are displayed. The first switch mode is selected from the switch mode change display 1d5 on the display 1d, and the switch mode is changed. Then, the control information is communicated from the communication terminal 11 on the camera body 1 side to the communication terminal 21 on the lens device 2 side regarding the switch mode set by the user. The control information communicated to the lens device 2 side is stored in the lens storage unit 2e in the lens device 2. As a result, the luminance of the illumination unit IA can be changed by the operation switch 2g.

  First, when the operation switch 2g is pressed from the off state (S30) of the illumination unit IA (S31), the illumination units IA on both sides are turned on (S32, S33). At this time, the illumination unit IA is turned on whether the operation switch 2g is pressed for longer than a predetermined time or shorter than the predetermined time. When the operation switch 2g is pressed for a predetermined time (S34, No, S35, No) from the state of S32 or S33 (the illumination units IA on both sides are lit), the illumination unit IA is turned off (S30).

  When the operation switch 2g is pressed longer than the predetermined time from the state of S32 or S33 (S34, Yes, S35, Yes), the luminance of the illumination unit IA increases (S36). If the operation switch 2g is continuously pressed (S37, Yes), the illumination unit IA luminance increases until the operation switch 2g is released. When the operation switch 2g is released (S37, No), the luminance is maintained. The illumination unit IA is turned on (S44). From the state in which the luminance continues to increase (S36), the operation switch 2g is further pressed as it is (S37, Yes), and when the luminance of the illumination unit IA becomes maximum (S38, Yes), the illumination unit IA maintains the maximum luminance. The light continues to be lit (S39).

  If the operation switch 2g is long pressed again in the state of S39 (the state where the luminance is maximum) (S41, Yes), the luminance of the illumination unit IA decreases (S42). If the operation switch 2g is kept pressed (S43, Yes), the illumination unit IA luminance decreases until the operation switch 2g is released, and when the operation switch 2g is released (S43, No), the illumination is maintained with the luminance maintained. The part IA is turned on (S47). From the state in which the luminance continues to decrease (S42), the operation switch 2g is further pressed as it is (S43, Yes), and when the luminance of the illumination unit IA is minimized (S46, Yes), the illumination unit IA maintains the minimum luminance. The light continues to be lit (S49). If the operation switch 2g is long pressed again in the state of S49 (the state where the luminance is minimum) (S35, Yes), the luminance of the illumination unit IA increases again (S36).

  This flow is an example and is not limited to this. In the present embodiment, when the luminance reaches the maximum or minimum, the finger is released from the operation switch 2g once, and continues to be lit with the maximum or minimum luminance maintained until the operation switch 2g is pressed again. Yes. However, for example, when the operation switch 2g is kept pressed even after the maximum or minimum luminance is reached, the luminance may be further changed as it is.

  FIG. 9 is a flowchart showing an example of control of the illumination unit IA by the operation switch 2g in the second switch mode. In the second switch mode, the chromaticity of the left and right illumination units IA is changed with the operation switch 2g. Here, as an example, a case will be described in which the operation button 1h of the camera body 1 is pressed, an operation screen for changing the color of the illumination unit IA is displayed, and the chromaticity of the right illumination unit IA is changed.

  An operation screen shown in FIG. 7 is displayed on the display 1d. On the operation screen, a chromaticity adjustment area 1d3, a luminance adjustment area 1d4, and a switch mode change display 1d5 are displayed. The second switch mode is selected from the switch mode change display 1d5 on the display 1d, and the switch mode is changed. Thereby, the color of the illumination unit IA can be changed by the operation switch 2g.

  Returning to FIG. 9, first, when the operation switch 2g of the lens device 2 is pressed (S51, Yes) from the OFF state (S50) of the illumination unit IA, the right illumination unit IA is turned on (S52). When the operation switch 2g is not pressed (S51, No), the illumination unit IA is not turned on. Next, using the chromaticity adjustment area 1d3 and the luminance adjustment area 1d4 displayed on the display 1d of the camera body 1, control information relating to the chromaticity and luminance settings of the right illumination unit IA is input (S53). The control information input by this operation is communicated from the camera body 1 to the lens device 2 in real time (S54). The communicated control information is stored in the lens storage unit 2e in the lens device 2. The lens CPU 2b performs calculation based on the communicated control information, and changes the luminance / chromaticity of the right illumination unit IA (S55).

  Next, when the operation switch 2g of the lens device 2 is pressed (S56, Yes), the right illumination unit IA is turned off and the left illumination unit IA is turned on (S57). Here, using the chromaticity adjustment area 1d3 and the luminance adjustment area 1d4 displayed on the display 1d of the camera body 1, control information relating to the chromaticity and luminance settings of the left illumination unit IA is input (S58). The control information input by the operation is communicated from the camera body 1 to the lens device 2 in real time (S59). The communicated control information is stored in the lens storage unit 2e in the lens device 2. The lens CPU 2b calculates based on the communicated control information, and changes the luminance and chromaticity of the left illumination unit IA (S60).

Thereafter, when the operation switch 2g of the lens device 2 is pressed for a time longer than a predetermined time (S61, Yes), the illumination units IA on both sides are lit with desired luminance and chromaticity (S62). As a result, the plurality of illumination units IA can be turned on with different luminance and chromaticity, and abundant shooting situations can be created. In the present embodiment, the illumination distance of the illumination unit IA provided in the lens device 2 has such a brightness that the exposure is closer than 20 cm from the front surface of the lens device 2.
(Third embodiment)

  FIG. 10 is a block diagram illustrating a configuration of a camera system 100 including a lens device according to the third embodiment. In addition, the same structure as 1st Embodiment is shown with a same sign, and description is abbreviate | omitted. The lens device 2 according to the present embodiment includes a communication module 2m as a communication unit, and the lens device 2 can communicate with a mobile terminal.

  The communication module 2m is an element for a proximity communication function, and a circuit is configured. The proximity communication function is a bidirectional wireless communication function such as Bluetooth (registered trademark), infrared communication, Wi-Fi, or the like. The portable terminal is one of the means for operating the lens. For example, a portable terminal dedicated to the lens, a terminal such as a smartphone, a tablet terminal, a laptop (notebook) personal computer equipped with Bluetooth / infrared communication function, etc. It is an electronic device. The portable terminal is a display device that includes a display. Moreover, a portable terminal is provided with CPU etc. as a control part, for example. A CPU or the like provided in the portable terminal outputs control information to the communication module 2m.

  For example, for connection with a mobile terminal having Bluetooth, the connection destination between the mobile terminal and the lens apparatus 2 is specified, and the lens apparatus 2 and the mobile terminal are paired. When a program for controlling the lens is installed in the portable terminal and pairing with the lens apparatus 2 is performed, the lens apparatus 2 can be controlled from the portable terminal.

  FIG. 11 is a diagram illustrating an example of an operation screen displayed on the display 3 a of the mobile terminal 3. When the lens operation program PG1 installed in the mobile terminal 3 is activated, an operation screen is displayed on the display 3a of the mobile terminal 3. The lens CPU 2b changes the lighting state of the left and right illumination units IA in accordance with the control information input to the mobile terminal 3. The operation by the lens operation program PG1 corresponds to the first operation mode in the first embodiment.

  For example, in the operation screen of FIG. 11, the touch position 3a1 of the display 3a is set to a strong mode in which both sides are lit, and the touch position 3a2 is set to a weak mode in which both sides are lit. When an image simulating the lens device 2 is displayed on the display 3a of the portable terminal 3, the display of the place (3a3) corresponding to the illumination unit IA on the front surface of the lens is changed in the display image, and the lighting is in the strong mode Is bright, dark when in weak mode, and displayed in the same way as the actual lighting status when separately lit on the left and right. Thereby, it becomes easy to visually grasp the lighting state of the illumination unit IA.

  The display 3a is configured by a touch panel and has a structure in which a predetermined operation such as a mode change is performed by touching a predetermined position on the screen. That is, the display 1d is also an input unit for inputting control information. That is, the display 1d is also an input unit for inputting control information. That is, the display 3a is also an input unit for inputting control information. In the touch panel, a capacitance type sensor or a pressure sensitive type sensor is configured on the entire surface of the liquid crystal panel, and detects a contact position by contact with a finger or a pen. Therefore, when the user touches the touch position 3a1 or the touch position 3a2 with a finger or a pen, the control information of the illumination unit IA can be input.

  At this time, the illumination unit IA can also be operated from the camera body 1, but exclusive processing is performed in order to prioritize control by the mobile terminal 3. FIG. 12 is a flowchart for explaining the exclusion process. When a predetermined program is activated (S601), the communication module 2m of the lens apparatus 2 communicates with the mobile terminal 3 (S602) and confirms the operation mode of the program (S603). The portable terminal 3 transmits a signal indicating that the portable terminal 3 and the lens apparatus 2 have started communication to the camera CPU 1c via the lens CPU 2b of the lens apparatus 2 (S604). The camera CPU 1c recognizes that the lens device 2 is controlled from the outside, and performs an exclusive process such as suppressing input of control information on the display 1d, for example (S605).

  When the lens CPU 2b receives control information from the camera body 1 after starting communication with the mobile terminal 3, the lens CPU 2b controls the illumination unit IA only with the control information received from the mobile terminal 3. Also good.

  When the camera body 1 is erroneously operated, it is possible to prevent the illumination unit IA from entering an undesired illumination state. In the present embodiment, the control by the mobile terminal 3 is prioritized. However, the control from the camera body 1 may be prioritized, or the control information communicated first may be prioritized. .

  FIG. 13 is a flowchart illustrating a method for controlling the illumination unit IA by the mobile terminal 3. First, control information is input by the user on the portable terminal 3 (S701). Next, control information is communicated from the portable terminal 3 to the communication module 2m of the lens device 2 (S702). The control information communicated to the lens device 2 side is stored in the lens storage unit 2e in the lens device 2 (S703). Based on the communicated control information, the lens CPU 2b calculates the amount of light (S704), and changes the brightness of the illumination unit IA (S705).

According to this embodiment, for example, even when the lens apparatus is mounted on a camera body that does not include a display, the illumination unit IA of the lens apparatus can be controlled using a mobile terminal such as a smartphone. .
(Fourth embodiment)

FIG. 14 is a diagram illustrating an example of an operation screen displayed on the display 3a of the mobile terminal 3 according to the fourth embodiment. In the program PG2 according to the present embodiment, two sliders 3a4 are displayed on the operation screen. By moving the slider 3a4, the lighting intensity of the left and right illumination units IA can be adjusted steplessly. A display imitating the lens is configured on the operation screen, and the display of the place (3a3) corresponding to the illumination unit IA on the front surface of the lens is changed in accordance with the luminance selected by the slider. Thereby, the lighting condition of the illumination part IA is visually displayed. The operation by the lens operation program PG2 corresponds to the second operation mode in the first embodiment.

  Also in the present embodiment, exclusive processing is performed as in the third embodiment. The exclusive processing method is the same as the flow shown in FIG. The control method is also the same as the flow shown in FIG. 13 of the third embodiment. When the lens operation program PG2 installed in the mobile terminal 3 is activated, an operation screen shown in FIG. 14 is displayed on the display 3a of the mobile terminal. When the user moves the slider 3a4, control information of the illumination unit IA is input (S701), and the control information is communicated from the portable terminal 3 to the communication module 2m of the lens device 2 (S702). The control information communicated to the lens device 2 side is stored in the lens storage unit 2e in the lens device 2 (S703). Based on the communicated control information, the lens CPU 2b calculates the amount of light (S704), and changes the brightness of the illumination unit IA (S705).

  At this time, the operation switch 2g of the lens device 2 is set to turn on / off the illumination unit IA. Further, when the lighting mode change display position 3a5 is touched with a finger or a pen, the lighting unit IA may be turned on / off.

According to this embodiment, for example, even when a lens device is mounted on a camera body that does not include a display, the brightness of the illumination unit IA can be adjusted steplessly using a mobile terminal such as a smartphone. It becomes possible to create abundant shooting situations.
(Fifth embodiment)

  FIG. 15 is a diagram illustrating an example of an operation screen displayed on the display 3a of the mobile terminal 3 according to the fifth embodiment. In the program PG3 according to the present embodiment, a chromaticity adjustment area 3a6, a luminance adjustment area 3a7, and a switch mode change display 3a8 are displayed on the operation screen. In the chromaticity adjustment area 3a6, colors generated at the ratio of the three primary colors of RGB are displayed, and the lighting color of the illumination unit IA is changed by selecting an arbitrary point. The luminance adjustment area 3a7 arbitrarily changes the luminance of the color selected in the chromaticity adjustment area 3a6. This corresponds to the operation mode according to the second embodiment.

  The switch mode change display 3a8 is a display for selecting the control of the illumination unit IA that can be operated with the operation switch 2g provided in the lens device 2. For example, it is a selection display that allows selection of whether to change the luminance of the illumination unit IA or to change the chromaticity of the left and right illumination units IA by operating the operation switch 2g.

  Here, switch modes that can be selected by the switch mode change display 3a8 will be described. In the first switch mode, the luminance of the illumination unit IA is changed with the operation switch 2g. Since this is the same as the first switch mode of the second embodiment, a description thereof will be omitted.

  FIG. 16 is a flowchart illustrating an example of control of the illumination unit IA by the operation switch 2g in the second switch mode according to the fifth embodiment. Since the second switch mode in the present embodiment corresponds to the second switch mode in the second embodiment, only portions different from the second switch mode according to the second embodiment will be described. Here, as in the second embodiment, as an example, a case where the chromaticity of the right illumination unit IA is changed will be described.

  By starting the program PG3, the operation screen shown in FIG. 15 is displayed on the display 3a. On the operation screen, a chromaticity adjustment area 3a6, a luminance adjustment area 3a7, and a switch mode change display 3a8 are displayed. The second switch mode is selected from the switch mode change display 3a8 on the display 3a to change the switch mode. Thereby, the color of the illumination unit IA can be changed by the operation switch 2g.

  In the present embodiment, control information is input using the display 3 a of the mobile terminal 3. Therefore, in S153, control information relating to the chromaticity and luminance settings of the right illumination unit IA is input using the chromaticity adjustment area 3a6 and the luminance adjustment area 3a7 displayed on the display 3a of the mobile terminal 3. Also in S158, control information relating to the chromaticity and luminance settings of the left illumination unit IA is input using the chromaticity adjustment area 3a6 and the luminance adjustment area 3a7 displayed on the display 3a of the portable terminal 3. The control information input by the operation is communicated from the portable terminal 3 to the lens device 2 in real time.

According to the present embodiment, for example, even when a lens apparatus is mounted on a camera body that does not include a display, a plurality of illumination units IA are turned on with different luminance and chromaticity using a mobile terminal such as a smartphone. It is possible to create abundant shooting situations.
(Other embodiments)

  As mentioned above, although embodiment of this invention has been described, this invention is not limited to these embodiment, A various change is possible within the range of the summary.

1 Camera body 1c Camera CPU
1l communication terminal 2 lens device 2b lens CPU
2l communication terminal 2m communication module IA illumination unit 3 mobile terminal 100 camera system

Claims (20)

A lens device capable of communicating with a display device having a display,
A lens barrel,
An illumination unit disposed at the front end of the lens barrel;
A first control unit for controlling the illumination unit;
A communication unit that is communicable with the display device, receives control information for controlling the illumination unit from the display device, and outputs the control information from the display device to the first control unit. A lens device.   The lens device according to claim 1, wherein the illumination unit emits light with a chromaticity other than white light or white light.   The lens apparatus according to claim 1, wherein the control information includes luminance information, chromaticity information, and on / off information of the illumination unit.   4. The lens device according to claim 1, wherein the first control unit adjusts the luminance of the illumination unit steplessly based on the control information. 5.   When the communication unit starts communication with the first display device, the first control unit transmits a signal indicating the start of communication to a second display device different from the first display device. The lens device according to claim 1, wherein:   The lens apparatus according to claim 1, further comprising an operation unit that changes an illumination state of the illumination unit.   The lens device according to claim 6, wherein the operation unit changes brightness, chromaticity, or on / off of the illumination unit. The communication unit receives information on the control of the illumination unit based on the operation of the operation unit from the display device, and outputs the information to the first control unit,
The lens apparatus according to claim 6, wherein the first control unit changes control of the illumination unit based on an operation of the operation unit according to the information.   The lens device according to claim 1, wherein the communication unit performs wireless communication with the display device.   The lens device according to claim 1, wherein the display device is a camera body or an electronic device including a second control unit that outputs the control information to the communication unit. . The display device includes an input unit for inputting the control information,
The lens device according to claim 10, wherein the second control unit outputs control information input to the input unit to the communication unit. An imaging device capable of communicating with a display device having a display,
A first control unit that controls an illumination unit disposed at a front end portion of a lens barrel unit included in the lens device;
A communication unit capable of communicating with the display device, receiving control information for controlling the illumination unit from the display device, and outputting control information from the display device to the first control unit. An imaging apparatus characterized by the above.   The imaging device according to claim 12, wherein the illumination unit emits light with a chromaticity other than white light or white light.   The imaging device according to claim 12 or 13, wherein the first control unit adjusts the luminance of the illumination unit steplessly based on the control information. An input unit for inputting the control information;
The said 1st control part suppresses the input of the said control information by the said input part, if the said communication part starts communication with the said display apparatus, The any one of Claim 12 thru | or 14 characterized by the above-mentioned. Imaging device according to   The imaging device according to any one of 12 to 15, wherein the control information includes luminance information, chromaticity information, and on / off information of the illumination unit.   The imaging device according to claim 12, wherein the communication unit performs wireless communication with the display device.   The imaging device according to claim 12, wherein the display device is an electronic device including a second control unit that outputs the control information to the communication unit. Communication capable of communicating with a lens barrel, a lighting unit arranged at the front end of the lens barrel, and a display device having a display, and receiving control information for controlling the lighting unit from the display device A control method of a lens device comprising:
A control method comprising the step of controlling the illumination unit based on the control information. An imaging apparatus control method comprising a communication unit capable of communicating with a display device having a display and receiving control information for controlling an illumination unit provided at a front end portion of a lens barrel unit included in the lens device from the display device. There,
A control method comprising the step of controlling the illumination unit based on the control information.