JP2015171064A - Light projector, imaging apparatus, beam light control method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light projector capable of controlling orientation direction of a beam light corresponding to a camera imaging execution mode.SOLUTION: The light projector includes: a beam light unit that emits a beam of light; a light-interlocked camera fixing part which is driven corresponding to an orientation direction of the beam light; and a light orientation angle stabilizing control section that controls the orientation direction of the beam light. In imaging processing execution mode of a camera mounted on the light-interlocked camera fixing part, an LPF converts a sensor detection signal as a displacement detection signal of the beam light into a long period type signal. The light orientation angle stabilizing control section generates a long period type position correction signal corresponding to the long period type conversion sensor detection signal, and performs a control processing to maintain the orientation direction of the beam light by applying the generated long period type position correction signal.

Description

  The present disclosure relates to a light projecting device, an imaging device, a beam light control method, and a program. Specifically, the present invention relates to a light projecting device, an imaging device, a beam light control method, and a program that irradiate a spotlight on a captured image of a camera.

  For example, it is possible to shoot an image that highlights a specific subject by irradiating a specific subject region such as a human face with a spotlight and capturing an image with an imaging device such as a video camera.

In addition, as a prior art which disclosed the apparatus which image-shoots, performing light irradiation, there exist patent document 1 (patent 3548733 gazette), patent document 2 (patent 3679987 gazette), etc., for example.
Patent Document 1 (Japanese Patent No. 3548733) discloses a configuration in which an inner gimbal of a pan head is controlled using a camera built-in gyro.
Patent Document 2 (Japanese Patent No. 3677987) discloses a subject tracking configuration of illumination according to a user instruction.

  Specific examples of taking an image while irradiating light include, for example, a configuration in which an image is taken while applying a spotlight in studio photography, and a surveillance camera that takes a specific subject by tracking illumination. .

Japanese Patent No. 3548733 Japanese Patent No. 3677987

When shooting an image by irradiating a specific subject with a spotlight, it is common to first process the procedure by specifying the subject to be photographed with a camera and irradiating the subject with a spotlight. However, for example, when it is difficult to check the subject such as at night, it is more efficient to first irradiate the spotlight to check the object to be photographed and then point the camera toward the light irradiation portion. Moreover, there are an interlocking driving configuration and a non-interlocking configuration as driving modes in the shooting direction of the camera and the irradiation direction of the spotlight, and the efficient spotlight direction control mode is different in each configuration.
An object of the present disclosure is to provide a light projecting device, an imaging device, a beam light control method, and a program that realize optimal light direction control when shooting an irradiation image of a spotlight in various modes.

The first aspect of the present disclosure is:
A beam light that emits light,
A light interlocking camera fixing unit that is driven according to the direction of the beam light;
A light directivity angle stability control unit that performs directivity control of the beam light;
The light directivity angle stability controller is
Based on the position correction signal according to the converted sensor detection signal obtained by converting the sensor detection signal, which is the displacement detection signal of the beam light, into the long-period type in the shooting processing execution mode by the camera mounted on the light-linked camera fixing unit, It is in the light projector which performs the long period type | mold conversion signal application control process which maintains the directivity direction of the said beam light.

  Furthermore, in one embodiment of the light projecting device of the present disclosure, the light projecting device includes a camera mounting detection unit that detects camera mounting on the light interlocking camera fixing unit, and the light directivity angle stability control unit includes: The long-period conversion signal application control process is executed on the condition that it is detected that a camera is mounted on the light-linked camera fixing unit based on detection information of the camera mounting unit.

  Furthermore, in an embodiment of the light projecting device of the present disclosure, the light projecting device includes a camera mounting detection unit that detects camera mounting on the light interlocking camera fixing unit, and a camera mounted on the light interlocking camera fixing unit. A communication unit that inputs information indicating whether or not the camera shake correction function is valid, and the light directivity angle stability control unit is connected to the light-linked camera fixing unit based on detection information of the camera mounting unit. On condition that it is detected that the camera is mounted and that the camera shake correction function of the mounted camera of the light-linked camera fixing unit is valid based on the input information from the communication unit The long-period conversion signal application control process is executed.

  Furthermore, in an embodiment of the light projecting device of the present disclosure, the light projecting device further includes a light non-linkable independent camera fixing unit that is not driven in accordance with the beam light directing direction, and the light directing In the imaging processing execution mode by the camera mounted on the independent camera fixing unit, the angle stability control unit is configured to direct the beamlight based on a position correction signal corresponding to a sensor detection signal that is a displacement detection signal of the beamlight. The sensor detection signal correspondence control process for maintaining the above is executed.

  Furthermore, in an embodiment of the light projecting device of the present disclosure, the light projecting device includes a mode setting unit that sets a photographing process execution mode, and the light directivity angle stability control unit is configured so that the mode setting unit is set. In the case of mode 1, the directivity direction of the beam light is controlled according to user operation information on the input unit of the camera mounted on the stand-alone camera fixing unit, and when the setting of the mode setting unit is mode 2, the light projection The directivity direction of the beam light is controlled in accordance with user operation information for the input unit of the apparatus.

  Furthermore, in an embodiment of the light projecting device according to the present disclosure, the light projecting device generates light beam driving direction information of the stepping motor for driving the beam light based on the user operation information. It has a conversion part.

  Furthermore, in one embodiment of the light projecting device of the present disclosure, the light projecting device detects a displacement of the beam light, outputs a sensor detection signal, and inputs the sensor detection signal. A sensor detection fluctuation frequency conversion section that converts a sensor detection signal into a long period type signal, and the light directivity angle stability control section executes the long period conversion signal application control process, the sensor detection fluctuation frequency conversion section; The long-period type conversion signal application control process is executed based on the long-period type position correction signal generated by applying the long-period type signal generated by the above.

  Furthermore, in one embodiment of the light projecting device of the present disclosure, the sensor detection fluctuation frequency conversion unit has a low-pass filter (LPF).

Furthermore, the second aspect of the present disclosure is:
An imaging unit;
A camera shake function setting unit for enabling and disabling the camera shake correction function;
Having a control part and a communication part,
The controller is
The image pickup apparatus outputs camera shake function setting information indicating whether the camera shake function setting is valid or invalid via the communication unit.

Furthermore, the third aspect of the present disclosure is:
A projection system having a light projection device having a beam light and an imaging device for photographing a light irradiation image by the beam light,
The light projecting device is:
A beam light that emits light,
A light interlocking camera fixing unit that is driven according to the direction of the beam light;
A light directivity angle stability control unit that performs directivity control of the beam light; a camera mounting detection unit that detects camera mounting on the light-linked camera fixing unit;
A communication unit for inputting information as to whether or not the camera shake correction function of the camera mounted on the light-linked camera fixing unit is valid;
The imaging device attached to the light-linked camera fixing unit outputs information on whether or not the camera shake correction function is effective to the light projecting device,
The light directivity angle stability control unit of the light projecting device,
Based on the detection information of the camera mounting unit, it is detected that a camera is mounted on the light interlocking camera fixing unit, and on the basis of the input information from the communication unit, the light interlocking camera fixing unit On the condition that the camera shake correction function of the mounted camera is confirmed to be effective, a position correction signal corresponding to the converted sensor detection signal obtained by converting the sensor detection signal, which is the displacement detection signal of the beam light, into a long-period type is used. On the basis of this, there is an imaging system for executing a long-period conversion signal application control process for maintaining the directivity direction of the beam light.

Furthermore, the fourth aspect of the present disclosure is:
It is a beam light control method executed in the light projecting device,
The light projecting device is:
A beam light that emits light,
A light interlocking camera fixing unit that is driven according to the direction of the beam light;
A light directivity angle stability control unit that performs directivity control of the beam light;
The light orientation angle stability controller is
Based on the position correction signal according to the converted sensor detection signal obtained by converting the sensor detection signal, which is the displacement detection signal of the beam light, into the long-period type in the shooting processing execution mode by the camera mounted on the light-linked camera fixing unit, The beam light control method executes a long-period conversion signal application control process for maintaining the beam light directivity direction.

Furthermore, the fifth aspect of the present disclosure is:
It is a program for executing a beam light control process executed in the light projecting device,
The light projecting device is:
A beam light that emits light,
A light interlocking camera fixing unit that is driven according to the direction of the beam light;
A light directivity angle stability control unit that performs directivity control of the beam light;
The program is stored in the light orientation angle stability control unit.
Based on the position correction signal according to the converted sensor detection signal obtained by converting the sensor detection signal, which is the displacement detection signal of the beam light, into the long-period type in the shooting processing execution mode by the camera mounted on the light-linked camera fixing unit, A program for executing a long-period conversion signal application control process for maintaining the directivity of the beam light.

  Note that the program of the present disclosure is a program that can be provided by, for example, a storage medium or a communication medium provided in a computer-readable format to an information processing apparatus or a computer system that can execute various program codes. By providing such a program in a computer-readable format, processing corresponding to the program is realized on the information processing apparatus or the computer system.

  Other objects, features, and advantages of the present disclosure will become apparent from a more detailed description based on embodiments of the present invention described later and the accompanying drawings. In this specification, the system is a logical set configuration of a plurality of devices, and is not limited to one in which the devices of each configuration are in the same casing.

According to the configuration of the embodiment of the present disclosure, the directivity control of the beam light according to the camera shooting execution mode is executed.
Specifically, the projector includes a beam light that irradiates light, a light-linked camera fixing unit that is driven according to the directivity direction of the beam light, and a light directivity angle stability control unit that performs directivity control of the beam light. In the optical device, the sensor detection signal, which is a displacement detection signal of the beam light, is converted into a long-period type by the LPF in the shooting processing execution mode by the camera equipped with the light-linked camera fixing unit. The light directivity angle stability control unit generates a long-period position correction signal corresponding to the long-period conversion sensor detection signal, and applies the generated long-period position correction signal to maintain the beam light directivity direction. Perform processing.
With this configuration, it is possible to perform optimal directivity control of the beam light in accordance with the camera shooting execution mode.
Note that the effects described in the present specification are merely examples and are not limited, and may have additional effects.

It is a figure explaining the structure of a light projector and an imaging device. It is a figure explaining the structural example of a light projector and an imaging device. It is a figure explaining the example of beam light control of a light projector. It is a figure explaining the directivity angle drive structure of a beam light. It is a figure explaining a setting mode. It is a figure explaining the example of beam light directivity angle control in modes 1 and 2. FIG. It is a figure explaining the example of beam light directivity angle control in mode 3. FIG. It is a figure explaining the example of beam light directivity angle control in mode 3. FIG. It is a figure explaining the structural example of a light projector and an imaging device (main camera). It is a figure explaining the structural example of a light projector and an imaging device (mini camera). It is a figure explaining the beam light directivity angle control sequence in mode 1. It is a figure explaining the beam light directivity angle control sequence in mode 2. It is a figure which shows the flowchart explaining the mode setting sequence in a mode setting part. It is a figure which shows the flowchart explaining the mode setting sequence in a mode setting part. It is a figure explaining the beam light directivity angle control sequence in mode 3.

The details of the light projecting device, the imaging device, the beam light control method, and the program according to the present disclosure will be described below with reference to the drawings. The description will be made according to the following items.
1. 1. Outline of configuration and processing of floodlight device 2. Control structure of beam light directivity angle About setting mode 4. Attitude stability control of beam light 5. Configuration and processing of floodlight device with main camera installed 6. Configuration and processing of light projector equipped with mini camera Processing sequence of write direction control 7-1. Write direction control processing sequence in mode 1 7-2. Write direction control processing sequence in mode 2 7-3. 7. Write direction control processing sequence in mode 3 Summary of composition of this disclosure

[1. Overview of projector configuration and processing]
First, with reference to FIG. 1 and the following, an outline of the configuration and processing of the light projecting device of the present disclosure will be described.

As shown in FIG. 1, the light projecting device 10 of the present disclosure includes a beam light 11 as light projecting means.
The beam light 11 can be rotated in the horizontal direction about the horizontal direction rotation shaft 15 and can also be rotated in the vertical direction about the vertical direction rotation shaft 16 in accordance with a user instruction. It has a configuration capable of irradiating spotlights in various directions.
The beam light 11 is directed in various directions by the control of the light directivity angle stability control unit inside the light projecting device 10, and the light direction is set to a predetermined position by feedback control based on sensor detection information for detecting the displacement of the beam light 11. Control to maintain is performed.

The light projecting device 10 has two camera fixing parts, an independent camera fixing part 12 and a light interlocking camera fixing part 13.
The independent camera fixing unit 12 is configured by a support base that is unrelated to the movement of the beam light 11.
On the other hand, the light interlocking camera fixing unit 13 is a support base that moves in conjunction with the beam light 11, and the shooting direction of the camera fixed to the light interlocking camera fixing unit 13 is substantially the same as the direction of the light 11. The camera is fixed to do so. When the directivity direction of the beam light 11 is changed, the shooting direction of the camera fixed to the light interlocking camera fixing unit 13 is also changed in conjunction.

FIG. 1B1 is a diagram illustrating an example in which the camera is fixed to the independent camera fixing unit 12.
FIG. 1B2 is a diagram illustrating an example in which the camera is fixed to the light interlocking camera fixing unit 13.
In the following description, a camera fixed to the independent camera fixing unit 12 is referred to as a main camera 20, and a camera fixed to the light interlocking camera fixing unit 13 is referred to as a mini camera 30.
The mini camera 30 is a camera such as a smartphone.

The light projecting device 10 and the main camera 20 are configured to be able to communicate with each other via a communication circuit provided in the independent camera fixing unit 12.
Similarly, the light projecting device 10 and the mini camera 30 can also communicate with each other via a communication circuit provided in the light interlocking camera fixing unit 13.

  With the beam light 11 of the light projecting device 10 shown in FIG. 1, it is possible to irradiate a part of the subject in the captured image of the main camera 20 or the mini camera 30, and the spotlight irradiation area of the captured image Can capture an image that is brighter than the other image areas and highlights the subject in the spotlight irradiation area.

  The main camera 20 and the mini camera 30 are cameras that can shoot both still images and moving images, for example. When shooting a still image or a moving image, the beam light 11 is turned on, and image shooting is performed while irradiating a specific area with a spotlight.

  FIG. 2 is a diagram illustrating a rear configuration of the light projecting device 10. FIG. 2 shows a rear configuration when the main camera 20 is mounted on the independent camera fixing unit 12.

On the rear surface of the light projecting device 10, input units such as a light projecting device-side light direction designation information input unit 17, an irradiation area enlargement / reduction control unit 18, and a mode setting unit 19 are provided.
The light projecting device-side light direction designation information input unit 17 is configured by, for example, a cross key as shown in the figure, and can drive the beam light 11 in the horizontal direction and the vertical direction by a user operation.
The irradiation area enlargement / reduction control unit 18 is configured by a slide key as shown in the figure, for example. The spotlight irradiation area of the beam light 11 can be enlarged or reduced by a user operation.
The mode setting unit 19 is a mode setting unit for causing the direction control processing of the beam light 11 to be executed in a different manner. The type of mode and processing according to each mode will be described in detail later.

As shown in FIG. 2, the main camera 20 is provided with a display unit 21 and a camera device side light direction designation information input unit 22.
The camera device side light direction designation information input unit 22 is configured by, for example, a cross key as shown in the figure, and can drive the beam light 11 in the horizontal direction and the vertical direction by a user operation.

  The beam light 11 can be changed by any user operation of the light projecting device side light direction designation information input unit 17 or the camera device side light direction designation information input unit 22, and any of these input units is used. It can be switched according to the setting mode.

The beam light 11 is configured by, for example, a white light irradiation type LED.
The beam light 11 can control the irradiation direction of the spotlight by directivity control. In addition, by controlling the light distribution angle, it is possible to enlarge and reduce the spotlight irradiation area.
FIGS. 3A and 3B are diagrams showing (a) a directivity angle control example and (b) a light distribution angle control example of the beam light 11.
(A) The directivity control is a process for controlling the irradiation direction of the spotlight as shown in FIG. The beam light 11 is configured to be freely driven in the X axis (pitch), Y axis (yaw), and Z axis (roll) triaxial directions, and can irradiate a spotlight in an arbitrary direction. FIG. 3A shows three examples of the spotlight irradiation areas 40 a to 40 c, but the irradiation area can be set in an arbitrary area as long as it is within the driving range of the beam light 11. The details of the drive configuration of the beam light 11 will be described later.

  (B) The light distribution angle control is control for changing the size of the spotlight, that is, the size of the irradiation area, as shown in FIG. The light distribution angle is controlled by controlling an optical lens that controls the spread of the light source of the beam light.

FIG. 3B shows spotlight irradiation areas 40d to 40e having two different sizes set by the light distribution angle control. As described above, an irradiation area of an arbitrary size can be set as long as it is within the controllable range of the light distribution angle of the beam light 11. The light distribution angle of the beam light can be controlled within a range of 6 ° to 25 °, for example.
Control of the directivity angle and the light distribution angle of the beam light 11 is executed by a user instruction input. The user instruction can be performed by operating the light projecting device 10 or an input unit of the main camera 20 attached to the light projecting device 10.

[2. About the control structure of the beam light directivity angle]
Next, with reference to FIG. 4, an example of a control structure for changing the directivity angle of the beam light 11 will be described.
FIG. 4 shows a detailed configuration diagram of the beam light directivity angle driving unit. As shown in this figure, the beam light directing angle driving unit has a posture stable driving mechanism having a general-purpose three-axis gimbal structure.
The G acceleration sensor stabilizes the posture and the Gyro angular velocity sensor prevents warping, and the Z axis is always set to face the direction of gravity indicated by the G sensor.
The X-axis and Y-axis tilt stability is configured such that stability control is performed so as to maintain the initially set angular orientation.

As shown in FIG. 4, the beam light directivity angle driving unit
An X-axis tilt correction drive wheel that performs X-axis tilt correction,
Y-axis tilt correction drive wheel for performing Y-axis tilt correction,
Z-axis tilt correction drive wheel that performs Z-axis tilt correction,
Stepping motor (STM) X-axis correction unit that performs X-axis correction by driving a stepping motor (STM),
A stepping motor (STM) Y-axis correction unit that performs Y-axis correction by driving a stepping motor (STM),
Stepping motor (STM) Z-axis correction unit that performs Z-axis correction by driving a stepping motor (STM),
Having these components, posture stable driving is performed by a three-axis gimbal structure.

  The reason why the Z-axis inclination is corrected is to illuminate the light design such as the beam light illumination light shape and color upright. In addition, since X-axis and Y-axis tilt correction is mechanically performed by motor drive, the Z-axis tilt is detected from the step drive amount of X-axis tilt correction and Y-axis tilt correction, and Z-axis tilt correction motor drive is used. By sharing the correction of the Z-axis inclination, if there is an influence of the Z-axis inclination vector, the X-axis inclination detection information data from the sensor is simplified by simplifying the complicated XZ vector and YZ vector calculation control for the motor drive. This is to simplify the overall drive system control by sharing the correspondence to the Y-axis direction tilt detection information data with the X-axis tilt correction motor drive and the Y-axis tilt correction motor drive.

[3. About setting mode]
As described above with reference to FIG. 2, the light projecting device 10 includes the mode setting unit 19.
The mode setting unit 19 is a mode setting unit for causing the direction control processing of the beam light 11 to be executed in a different manner.

With reference to FIG. 5, the types of modes that can be set and the processing to be executed in each setting mode will be described.
There are three modes that can be set: modes 1 to 3.
Hereinafter, each mode will be described.

(1) Mode 1
Mode 1 (Cam with Spotlight mode) is a setting mode used when shooting a spotlight irradiation image with the main camera 20 fixed to the stand-alone camera fixing unit 12, and at the time of image shooting according to the following processing sequence. This is the optimal mode.
(S1) The main camera 20 captures the subject.
(S2) The directivity direction of the beam light 11 is determined by operating the input unit of the main camera 20.
(S3) The normal stable control of the attitude of the beam light 11 is started.

That is, first, in step S1, the subject is captured by the main camera 20 fixed to the independent camera fixing unit 12. The subject image is displayed on the display unit 21 of the main camera 20 as shown in FIG.
Next, in step S <b> 2, the direction of the light is determined by operating the input unit of the main camera 20. That is, the camera apparatus side light direction instruction information input unit 22 shown in FIG. 2 is operated to set the directivity direction of the beam light 11.
For example, the user can set the spotlight irradiation position as a target position while viewing the image displayed on the display unit 21.

Thereafter, in step S3, the light posture normal stable control is started. This process is executed as a process using a mechanism on the light projecting device 10 side.
Specifically, feedback control for maintaining the beam light 11 at the set position is started based on the sensor output of a sensor that detects the attitude of the beam light 11.

(2) Mode 2
Mode 2 (Search Light Cam mode) is also a setting mode used when shooting a spotlight irradiation image with the main camera 20 fixed to the stand-alone camera fixing unit 12, and at the time of image shooting according to the following processing sequence. This is the optimal mode.
(S1) The direction of the light is determined by operating the light projecting device input unit.
(S2) The main camera 20 captures the subject.
(S3) The normal stable control of the light attitude is started.

In this mode 2, first, in step S1, the directivity direction of the light is determined by operating the input unit of the light projecting device 10. That is, the directivity direction of the beam light 11 is set by operating the light projector direction light direction instruction information input unit 17 shown in FIG.
Mode 2 is an optimal mode when it is difficult to confirm the subject to be photographed, such as at night, and it is possible to first confirm the subject by applying light.

Next, in step S <b> 2, the subject is captured by the main camera 20 fixed to the independent camera fixing unit 12. The subject image is displayed on the display unit 21 of the main camera 20 as shown in FIG.
In this case, since the image irradiated with the spotlight is displayed, the user can surely confirm the subject.

Thereafter, in step S3, the light posture normal stable control is started. This process is executed as a process using a mechanism on the light projecting device 10 side.
Specifically, feedback control for maintaining the beam light 11 at the set position is started based on the sensor output of a sensor that detects the attitude of the beam light 11.

(3) Mode 3
Mode 3 (Cam Doc Light mode) is a setting mode used when shooting a spotlight irradiation image with the mini-camera 30 fixed to the light interlocking camera fixing unit 13, and image shooting according to the following processing sequence. This is sometimes the best mode.
(S1) The mode 3 is automatically set based on detection of the mini camera 30 being mounted, or detection of the mini camera 30 being mounted and the camera shake correction setting of the mini camera 30 being turned on.
(S2) The direction of the light is determined by operating the light projecting device input unit.
(S3) The long-period stable control of the light posture is started.

  In this mode 3, first, in step S1, the light projecting device 10 detects whether the mini camera 30 is mounted or detects whether the mini camera 30 is mounted and the camera shake correction setting of the mini camera 30 is ON. Mode 3 is automatically set on condition that the detection has been made.

  Next, in step S <b> 2, the light directivity direction is determined by operating the input unit of the light projecting device 10. That is, the directivity direction of the beam light 11 is set by operating the light projector direction light direction instruction information input unit 17 shown in FIG.

Next, in step S3, the light posture long-period stability control is started. This process is executed as a process using a mechanism on the light projecting device 10 side.
Specifically, as in mode 1 and mode 2, feedback control for maintaining the beam light 11 at the set position based on the sensor output of the sensor that detects the attitude of the beam light 11 is fundamental, but in mode 3, The sensor output signal is converted into a long-period signal, and feedback control based on the converted long-period signal is performed.

[4. About attitude stability control of beam light]
As described above, there are three types of shooting modes 1 to 3 for shooting a subject that has been irradiated with the spotlight by the beam light 11.
Modes 1 and 2 are modes in which shooting is performed with the main camera 20 attached to the independent camera fixing unit 12 of the light projecting device 10.
On the other hand, mode 3 is a mode when photographing is performed with the mini camera 30 attached to the light interlocking camera fixing unit 13 of the light projecting device 10.

In modes 1 and 2, the attitude stability control of the beam light 11 is executed as normal stability control, while in mode 3, it is executed as long-period stability control.
That is, the beam light 11 selectively executes one of the following two different posture stability control processes depending on the mode.
(A) Normal type stable control (B) Long period type stable control These are all feedback controls based on the output value of the attitude sensor that detects the attitude of the beam light 11.

The normal stability control generates a feedback correction control signal using the posture detection signal of the posture sensor as it is.
That is, feedback control is executed to execute displacement correction driving that responds quickly to the displacement of the beam light 11.

On the other hand, in the long-period stability control, first, a long-period posture detection signal in which minute signal displacement is reduced is generated by applying an LPF (low-pass filter), for example, to the detection signal of the posture sensor. That is, a converted sensor detection signal obtained by converting the sensor detection signal into a long-period signal is generated.
Thereafter, a feedback correction control signal is generated based on the converted signal.
That is, feedback control is performed in which the displacement of the beam light 11 is converted into gentle displacement information and a gentle displacement correction drive corresponding to the gentle displacement is executed.
Hereinafter, these two different controls will be described with reference to FIGS.

FIG. 6 is a diagram for explaining the (A) normal stability control process executed in modes 1 and 2. FIG. 6 shows examples of the following two signal patterns.
(1) Sensor detection signal of light attitude sensor (sensor detection shaking signal)
(2) Shake correction control signal for modes 1 and 2

In the graph shown in FIG. 6A, the horizontal axis indicates time t, and the vertical axis indicates the amount of displacement of the beam light obtained as the output value of the sensor that detects the displacement of the beam light 11.
The displacement amount on the vertical axis is a sensor detection signal output by the light posture sensor unit that detects the posture displacement of the sensor.
The amplitude of the graph indicates the shaking of the beam light 11 over time.

The graph shown in FIG. 6 (2) is a shake correction control signal generated based on the sensor detection signal shown in FIG. 6 (1). That is, it is a correction control signal for suppressing the shaking of the beam light 11 and maintaining the beam light 11 at a predetermined position.
The horizontal axis is time t, and the vertical axis is the light fluctuation correction control signal.
The light fluctuation correction control signal is generated based on the sensor detection signal shown in FIG. 6A output from the light attitude sensor unit by the light directivity angle stability control unit that performs driving and attitude control of the beam light 11.
By driving the beam light 11 according to the light fluctuation correction control signal, the amount of displacement of the beam light from a predetermined position is reduced.

In mode 1 and mode 2, the light fluctuation correction control signal shown in FIG. 6 (2) has a shape that substantially matches the sensor output that is the displacement detection signal of the beam light shown in FIG. 6 (1).
This means that the control for maintaining the posture by executing the driving process for performing the posture control of the beam light 11 at substantially the same timing with respect to the displacement detected by the sensor is performed. It is.

Next, (B) long-period stability control processing executed in mode 3 will be described with reference to FIGS. FIG. 7 shows examples of the following two signal patterns.
(1) Sensor detection signal of light attitude sensor (sensor detection shaking signal)
(2) Mode 3 beam light fluctuation correction control signal

The graph shown in FIG. 7 (1) is the same as the graph shown in FIG. 6 (1). The horizontal axis represents time t, and the vertical axis represents the output value of the sensor that detects the displacement of the beam light 11. The amount of displacement is shown.
The displacement amount on the vertical axis is a sensor detection signal output by the light posture sensor unit that detects the posture displacement of the sensor.
The amplitude of the graph indicates the shaking of the beam light 11 over time.

The graph shown in FIG. 7 (2) is a shake correction control signal generated based on the sensor detection signal shown in FIG. 7 (1).
That is, it is a correction control signal for suppressing the shaking of the beam light 11 and maintaining the beam light 11 at a predetermined position.
The horizontal axis is time t, and the vertical axis is the light fluctuation correction control signal.

Unlike the shake correction control signal shown in FIG. 6 (2), the amplitude of the shake correction control signal shown in FIG. 7 (2) is gentle. That is, it is a long-period correction control signal with a long amplitude period.
This long-period correction control signal is a correction control signal generated based on a sensor detection signal converted by applying, for example, an LPF (low-pass filter) to the sensor detection signal shown in FIG.

When an LPF (low-pass filter) is applied to the sensor detection signal indicated by a solid line in FIG. 7A, for example, a long-period conversion signal indicated by a dotted line in FIG. 7A is obtained.
The correction control signal generated based on the conversion signal (long-period signal) indicated by the dotted line in FIG. 7A is the correction control signal shown in FIG.

That is, in mode 3, first, LPF is applied to the sensor detection signal indicated by the solid line in FIG. 7 (1) output from the light attitude sensor unit, and the long period sensor detection signal indicated by the dotted line in image 7 (1) is obtained. Convert.
Furthermore, this conversion signal is input to a light directivity angle stability control unit that performs driving and attitude control of the beam light 11, and a correction control signal corresponding to the long-period sensor detection signal is generated. This result is the correction control signal shown in FIG.

  In Mode 1 and Mode 2 described above with reference to FIG. 6, the attitude control of the beam light 11 is executed by the light fluctuation correction control signal shown in FIG. 6 (2), and the displacement detected by the sensor is almost equal to the displacement amount. Feedback control is performed to immediately execute equal correction driving.

On the other hand, in the mode 3 shown in FIG. 7, the attitude control of the beam light 11 is executed by the long period type light fluctuation correction control signal shown in FIG.
This is not a control that immediately executes a correction drive substantially equal to the amount of displacement detected by the sensor, but a correction control according to a long-period displacement signal obtained by converting the displacement detected by the sensor into gentle displacement information. This means that feedback control according to the long-period displacement is performed.

Mode 3 is a mode in which shooting is performed using the mini camera 30 fixed to the light interlocking camera fixing unit 13 that moves in conjunction with the beam light 11.
Accordingly, the displacement generated by the attitude control of the beam light 11 is also generated in the mini camera 30 as it is.

That is, the intense correction driving process causes a shake with respect to the image captured by the mini camera 30.
If short-cycle fluctuation control is executed, a short-period fluctuation may occur in the captured image of the mini camera 30 and the quality of the captured image may be reduced.
In consideration of such a situation, when taking an image using the mini camera 30 fixed to the light interlocking camera fixing unit 13, a posture is applied by applying a long-period correction control signal as shown in FIG. Make corrections.

The posture correction using such a long-period signal may be performed on condition that shooting by the mini camera 30 is performed, but the camera shake correction function is effective (ON) during the shooting process of the mini camera 30. Only when it is set to (), it may be configured to execute the long-period attitude control.
This processing example will be described with reference to FIG.

FIG. 8 shows examples of the following three signal patterns.
(1) Sensor detection signal of light attitude sensor (sensor detection shaking signal)
(2) Example of camera shake correction control signal incorporated in mini camera 30 (3) Beam light shake correction control signal in mode 3

The graph shown in FIG. 8 (1) is the same as the graph shown in FIG. 7 (1). The horizontal axis represents time t and the vertical axis represents the output value of the sensor that detects the displacement of the beam light 11. The amount of displacement is shown.
The displacement amount on the vertical axis is a sensor detection signal output by the light posture sensor unit that detects the posture displacement of the sensor.
The amplitude of the graph indicates the shaking of the beam light 11 over time.

The graph shown in FIG. 8B shows an example of a camera shake correction control signal built in the mini camera 30. Many cameras have a function of measuring the amount of displacement of a captured image and automatically performing image correction, so-called camera shake correction. The graph of FIG. 8B is a graph showing the correspondence between the correction control signal for correcting camera shake and time.
This camera shake correction control signal is a signal corresponding to the shaking of the captured image of the mini camera 30.
Since the mini camera 30 is fixed to the light interlocking camera fixing portion 13 of the light projecting device 10, the same shake as that of the beam light 11 occurs in the mini camera 30, and as a result, the inside of the mini camera 30. The camera shake correction mechanism generates a camera shake correction control signal that corrects the shaking. This signal is the signal shown in FIG.

At this time, in order to maintain the attitude with respect to the beam light 11, for example, if attitude control is performed using a short-cycle correction control signal as illustrated in FIG. 6B, the beam light 11 is further subjected to this attitude control process. A short-period displacement occurs.
As a result, camera shake correction executed in the mini camera 30 requires processing corresponding to both short-period vibration caused by the shaking of the beam light 11 and short-period driving for controlling the attitude of the beam light. Control with a fine cycle is required. As a result, there is a possibility that the level that can be corrected by the camera shake correction function of the mini camera 30 is exceeded.
In order to prevent such a situation, the shake correction of the beam light 11 is performed by a long-period correction control signal as shown in FIG.

The long-cycle correction control signal shown in FIG. 8 (3) is a correction control signal similar to the correction control signal shown in FIG. 7 (2).
The graph shown in FIG. 8 (3) is a graph showing a correction control signal for suppressing the shaking of the beam light 11 and maintaining the beam light 11 at a predetermined position, the horizontal axis is time t, and the vertical axis Is a light fluctuation correction control signal.

  The shake correction control signal shown in FIG. 8 (3) is a long-period correction control signal with a long amplitude cycle. For example, an LPF (low-pass filter) is applied to the sensor detection signal shown by the solid line in FIG. 8 (1). It is a correction control signal generated based on the sensor detection signal converted by application.

A sensor detection signal converted by applying, for example, an LPF (low-pass filter) to the sensor detection signal indicated by the solid line in FIG. 8A corresponds to the signal indicated by the dotted line in FIG.
A correction control signal generated based on the conversion sensor detection signal signal (long-cycle signal) indicated by a dotted line in FIG. 8A is a long-cycle correction control signal shown in FIG.

  By performing posture control using such a long-cycle correction control signal, it is possible to reduce the possibility of adverse effects on the camera shake correction function of the mini camera 30 and to realize good camera shake correction. It becomes.

[5. Configuration and processing of projector with main camera]
Next, the configuration and processing of the light projecting device 10 equipped with the main camera 20 will be described with reference to FIG.

  FIG. 9 is a diagram illustrating a configuration example of the light projecting device 10 and the main camera 20. In addition, FIG. 9 is a block diagram mainly showing components related to processing of the present disclosure in the configurations of the light projecting device 10 and the main camera 20. The light projecting device 10 and the main camera 20 have various components in addition to the configuration shown in FIG. For example, the light projecting device 10 includes a control unit including a CPU having a program execution function, a storage unit for storing a program executed in the control unit, various parameters, a table for data conversion, and the like.

  As described above with reference to FIG. 1, the main camera 20 is fixed to the independent camera fixing unit 12 of the light projecting device 10. The light projecting device 10 and the main camera 20 are configured to communicate with each other via the main camera compatible communication unit 120 of the light projecting device 10 and the communication unit 204 of the main camera 20.

First, the configuration of the light projecting device 10 will be described.
The light projecting device side light direction designation information input unit 101 corresponds to the light projecting device side light direction designation information input unit 17 described with reference to FIG. 2, and is configured by, for example, a cross key, and includes the beam light 105 shown in FIG. It is a user operation part for inputting designation information of the directivity direction.

User input information for the light projecting device side light direction designation information input unit 101 is input to the light projecting device side light direction designation information analysis unit 102.
The light projecting device-side light direction designation information analysis unit 102 analyzes the operation information using the cross key, and calculates, for example, coordinates (x, y) indicating the designated direction of the beam light 105. This is executed with reference to, for example, a table stored in the storage unit in advance.

The coordinate information indicating the setting direction of the beam light according to the user instruction calculated by the light projecting device-side light direction designation information analysis unit 102 is input to the light direction designation information / directivity angle conversion unit 103.
The light direction designation information / directing angle conversion unit 103 calculates angle control data for setting the position of the beam light 105 based on the coordinate information calculated by the light projecting device side light direction designation information analysis unit 102.

Specifically, the angle control data for setting the position of the beam light 105 is, for example, a step angle for setting the directivity angle of the beam light 105.
As described above with reference to FIG. 4, the beam light is driven by using a step motor that can be positioned at predetermined intervals in the x direction and the y direction.

  The light direction designation information / directing angle conversion unit 103 receives the beam at a position corresponding to the coordinate information (x, y) indicating the beam light setting direction according to the user instruction calculated by the light projection device side light direction designation information analysis unit 102. Step angles indicating the movement angles in the x and y directions for setting the light are calculated as angle control data.

The light direction designation information / directing angle conversion unit 103 outputs the calculated angle control data to the light directing direction stability control unit 104.
The light orientation direction stability control unit 104 drives a step motor for setting the direction of the beam light 105 according to the input angle control data. By this processing, the beam light 105 is set in a direction according to the user operation, and the spotlight is irradiated to a position desired by the user.

  Thereafter, the light orientation direction stability control unit 104 sequentially inputs the displacement information of the beam light 105 detected by the light attitude sensor unit 108 as sensor detection information, and drives the beam light 105 according to the input sensor detection information. In other words, the beam light 105 is controlled by feedback control to which the sensor detection information is applied so that no deviation occurs in the directivity direction of the beam light 105.

This feedback control has the following two control modes as described above.
(A) Normal type stable control (B) Long period type stable control In modes 1 and 2, normal type stable control is executed, and in mode 3, long period type stable control is executed.

The mode input unit 110 of the light projecting device 10 illustrated in FIG. 9 corresponds to the mode setting unit 19 described with reference to FIG.
As described above with reference to FIG. 5, the projector 10 can set modes 1 to 3, and the mode input unit 110 is a user operation unit for performing these mode settings.

The user operation information for the mode input unit 110 is input to the mode setting unit 111, and the mode setting unit 111 sets the shooting process execution mode according to the user operation. Note that the mode as described above with reference to FIG. 3 is a mode that is automatically set on condition that the mini camera 30 is mounted or that the mini camera 30 is mounted and the camera shake correction function ON of the mini camera 30 is detected.
The mode setting unit 11 inputs information on whether or not the mini camera is mounted from the mini camera mounting detection unit 131, and whether or not the camera shake correction function of the mini camera 30 is turned on from the mini camera compatible communication unit 130. Enter information.
The mode setting unit 111 sets the mode 3 based on the input information.

The mode setting process executed by the mode setting unit 111 includes a control process setting process executed by the light directivity angle stability control unit 104. As described above with reference to FIGS. 5 to 8, the light directivity angle stability control unit 104 is based on the sensor detection signal of the light attitude sensor unit 108 (= displacement of the beam light 105). Attitude stabilization control processing is executed.
(A) Normal stability control for modes 1 and 2 (B) Long period stability control for mode 3

The normal stability control is a method used as a correction control signal for stable control of the beam light 105 without converting sensor detection information.
In the long-period stability control, sensor detection information is converted into a long-period signal, and a correction control signal for stable control of the beam light 105 is generated based on the converted signal to control the beam light. is there.

FIG. 9 schematically shows a configuration for switching the stable control as a switch 107. When the setting mode is set to modes 1 and 2, the mode setting unit 111 connects the switch 107 to the a side.
With this connection configuration, the sensor detection information of the light attitude sensor unit 106 is not converted and is input to the light directivity angle stability control unit 104 as it is. The light directivity angle stability control unit 104 uses the sensor detection information of the light attitude sensor unit 106 as it is, generates a correction control signal for stable control of the beam light 105, and performs control for maintaining the direction of the beam light 105. Execute. This process corresponds to the process described with reference to FIG.

On the other hand, in mode 3, the mode setting unit 111 sets the switch 107 to the b side.
With this connection configuration, the sensor detection information of the light attitude sensor unit 106 is input to the sensor detection fluctuation frequency conversion unit (LPF) 108.
The sensor detection fluctuation frequency conversion unit (LPF) 108 executes a process for lengthening the sensor detection information. Specifically, for example, a long-period conversion signal indicated by a dotted line in FIG.

The sensor detection fluctuation frequency converter (LPF) 108 applies an LPF (low-pass filter) to the sensor detection signal indicated by a solid line in FIG. 7A, for example, and converts the sensor detection signal indicated by a dotted line in FIG. (Long period signal) is generated.
The sensor detection fluctuation frequency converter (LPF) 108 converts the sensor detection signal in this way, and generates a long-period sensor detection signal.

The long-period sensor detection signal generated by the sensor detection fluctuation frequency conversion unit (LPF) 108 is input to the light directivity angle stability control unit 104.
The light directivity angle stability control unit 104 generates a correction control signal that is a feedback control signal for the direction latitude of the beam light 105 based on the long-period conversion sensor detection signal signal. This correction control signal is, for example, the correction control signal shown in FIG.
In the setting mode 3, feedback control based on the long-period correction control signal is executed, and gentle drive control is performed.

Next, the configuration of the main camera 20 will be described.
The main camera 20 includes a control unit 201, an input unit 202, an output unit 203, a communication unit 204, an imaging unit 205, an image processing unit 206, a storage unit 207, a camera device side light direction designation information input unit 211, and a camera device side light direction designation. An information analysis unit 212 is included.

The control unit 201 has a function of controlling processing on the imaging apparatus side, and includes, for example, a CPU having a program execution function.
The input unit 202 is an input unit for inputting various user operations such as shooting start and mode setting.
The output unit 203 includes a display, a speaker, and the like, and performs display of a captured image, message output processing, and the like.
The communication unit 204 performs communication processing with an external device such as the light projecting device 10.

The image capturing unit 205 is an image capturing mechanism that includes an image sensor for capturing an image and various lenses.
The image processing unit 206 performs various image processing on the image captured by the imaging unit 205, generates an image to be stored in the storage unit 207, an image to be output to the output unit 203, or the like or performs autofocus control. A reduced image generation process or the like is also executed.
The storage unit 207 is used as a storage area for captured images, programs executed by the control unit 201, and various parameters.

  The camera-device-side light direction designation information input unit 211 corresponds to the camera-device-side light direction designation information input unit 22 described with reference to FIG. 2, and is configured by, for example, a cross key, and directs the beam light 105 shown in FIG. It is a user operation part for inputting direction designation information.

User input information to the camera device side light direction designation information input unit 211 is input to the camera device side light direction designation information analysis unit 212.
The camera device side light direction designation information analysis unit 212 analyzes operation information by the cross key and calculates, for example, coordinates (x, y) indicating the designation direction of the beam light 105. This is executed with reference to, for example, a table stored in the storage unit in advance.

The coordinate information indicating the setting direction of the beam light according to the user instruction calculated by the camera device side light direction designation information analysis unit 212 is transmitted via the communication unit 204 to the light direction designation information / directing angle conversion unit of the light projecting device 10. 103.
The light direction designation information / directing angle conversion unit 103 calculates angle control data for setting the position of the beam light 105 based on the coordinate information calculated by the camera device side light direction designation information analysis unit 212.
The angle control data for setting the position of the beam light 105 is, for example, a step angle for setting the directivity angle of the beam light 105 as described above.

  Thus, the user can specify the direction of the beam light 105 from either the light projecting device side light direction designation information input unit 101 of the light projecting device 10 or the camera device side light direction designation information input unit 211 of the main camera 20. It is configured to be able to give instructions.

[6. Regarding the configuration and processing of the projector equipped with a mini camera]
Next, the configuration and processing of the light projecting device 10 equipped with the mini camera 30 will be described with reference to FIG.

FIG. 10 is a diagram illustrating a configuration example of the light projecting device 10 and the mini camera 30.
10 is the same as the configuration described with reference to FIG. 9, and therefore detailed description of the components already described in FIG. 9 is omitted.
Below, the structure of the mini camera 30 and the structure of the light projector 10 which performs the process regarding the mini camera 30 are demonstrated.

  As described above with reference to FIG. 1, the mini camera 30 is fixed to the beam light interlocking camera fixing unit 13 of the light projecting device 10. The light projecting device 10 and the main camera 20 are configured to communicate with each other via the main camera compatible communication unit 120 of the light projecting device 10 and the communication unit 204 of the main camera 20.

  The mini camera 30 includes a control unit 301, an input unit 302, an output unit 303, an imaging unit 304, an image processing unit 305, a storage unit 306, a communication unit 307, and a camera shake correction on / off setting unit 311.

The control unit 301 has a function of controlling processing on the imaging apparatus side, and includes, for example, a CPU having a program execution function.
The input unit 302 is an input unit for inputting various user operations such as shooting start and mode setting.
The output unit 303 includes a display, a speaker, and the like, and performs display of a captured image, message output processing, and the like.

The image capturing unit 304 is an image capturing mechanism including an image sensor for capturing an image and various lenses.
The image processing unit 305 performs various image processing on the image captured by the imaging unit 304, generates an image to be stored in the storage unit 306, an image to be output to the output unit 303, or for autofocus control. The reduced image generation process is also executed.
The storage unit 306 is used as a storage area for captured images, programs executed by the control unit 301, and various parameters.
The communication unit 307 performs communication processing with an external device such as the light projecting device 10.

The camera shake correction on / off setting unit 311 is an input unit for inputting a setting as to whether or not to perform camera shake correction of a captured image in the mini camera 30.
Many cameras have a function of measuring the amount of displacement of a captured image and automatically performing image correction, so-called camera shake correction.
The camera shake correction on / off setting unit 311 is a setting switch for determining whether to enable this function.

When the camera shake correction function is turned on, image correction based on the camera shake correction control signal as described above with reference to FIG. 8B is executed.
This camera shake correction control signal is a signal corresponding to the shaking of the captured image of the mini camera 30.

The mini camera mounting detection unit 131 of the light projecting device 10 detects whether or not the mini camera 30 is mounted on the light interlocking camera fixing unit 13 of the light projecting device 10 shown in FIG.
This detection signal is input to the mode setting unit 111 of the light projecting device 10.
Further, the control unit 301 of the mini camera 30 outputs setting information of the camera shake correction on / off setting unit 311 of the mini camera 30 to the light projecting device 10 via the communication unit 307, and this information is transmitted to the light projecting device 10. Are input to the mode setting unit 111.
The mode setting unit 111 of the light projecting device 10 is
(A) Mini camera wearing detection (B) Mini camera wearing detection and mini camera shake correction on setting,
When either (A) or (B) is detected, the mode is set to mode 3.
Various settings can be made as to which of the above conditions (A) and (B) is applied. It is good also as a structure which can be set by the user.

As described above, the mode setting executed by the mode setting unit 111 includes the setting process of the control process executed by the light directivity angle stability control unit 104. That is, the following settings are switched.
(A) Normal stability control for modes 1 and 2 (B) Long period stability control for mode 3

The normal stability control is a method used as a correction control signal for stable control of the beam light 105 without converting sensor detection information.
In the long-period stability control, sensor detection information is input to the sensor detection fluctuation frequency converter (LPF) 108 and converted into a long-period signal, and correction for stable control of the beam light 105 is performed based on the converted signal. In this method, a control signal is generated to control the beam light.
In mode 3, feedback control based on the long-period correction control signal is executed, and gentle drive control is performed.

[7. Processing sequence for write direction control]
Next, the write direction control sequence will be described with reference to FIG. The processing sequence in each setting mode of modes 1 to 3 will be described sequentially.

[7-1. About the write direction control processing sequence in mode 1]
Mode 1 (Cam with Spotlight mode) is a setting mode for shooting a spotlight irradiation image with the main camera 20 fixed to the independent camera fixing unit 12 shown in FIG.
This is the optimal mode when shooting an image according to the following processing sequence.
(S1) The subject is captured by the camera.
(S2) The direction of the light is determined by operating the camera input unit.
(S3) The normal stable control of the light attitude is started.

The beam light control sequence in this mode 1 will be described with reference to the sequence diagram shown in FIG.
FIG. 11 shows the following components from the left.
Camera device side light direction designation information input unit 211,
Camera device side light direction designation information analysis unit 212,
Mode setting unit 111,
Light direction designation information / directing angle converter 103,
Light attitude sensor unit 106,
Sensor detection fluctuation frequency converter (LPF) 108,
Light orientation angle stability control unit 104,
Each of these components corresponds to the configuration described with reference to FIGS. 9 and 10.
Hereinafter, the processing of each step shown in FIG. 11 will be described sequentially.

(Steps S11 to S13)
When the main camera 20 is attached to the light projecting device 10 and the power of the light projecting device 10 is set to ON, first, the processes of steps S11 to S13 are started.
This process is a feedback control process for stably maintaining the beam light 105 at the initial setting position (the default position).

The beam light 105 of the light projecting device 10 is automatically driven and positioned at a preset initial position when the power is turned on.
Thereafter, in step S <b> 11, the light attitude sensor unit 106 outputs the displacement of the beam light 105 as a sensor detection signal to the light orientation angle stability control unit 104.

  In step S12, the light orientation angle stability control unit 104 generates a correction control signal for minimizing the displacement of the beam light 105 based on the sensor detection signal input from the light attitude sensor unit 106, and uses the correction control signal. Based on this, control for maintaining the beam light 105 at the initial position is executed.

  Step S13 is a step of continuously executing a posture stabilization control process executed as feedback control for maintaining the beam light direction based on the sensor detection signals of steps S11 to S12.

(Step S101)
After that, when mode 1 is set by a user operation on the mode input unit 110 of the light projecting device 10 in step S101, the mode setting unit 111 sets mode 1. That is, as described with reference to FIG. 9, the sensor detection information of the light attitude 106 is directly input to the light directivity angle stability control unit 104 without being converted into a long-period signal.

(Step S102)
In step S <b> 102, the user performs an operation for directing the beam light 105 in a desired direction on the camera device side light direction designation information input unit 211 of the main camera 20. The camera-device-side light direction designation information input unit 211 corresponds to the camera-device-side light direction designation information input unit 22 described with reference to FIG. 2, and is configured by, for example, a cross key, and directs the beam light 105 shown in FIG. It is a user operation part for inputting direction designation information.

The user operates the cross key to input instruction information for directing the beam light 105 in a desired direction.
The camera device side light direction designation information input unit 211 outputs light direction designation information 511 as input information to the camera device side light direction designation information analysis unit 212.

(Step S103)
Next, in step S <b> 103, the camera device side light direction designation information analysis unit 212 analyzes the operation information using the cross key and calculates, for example, coordinates (x, y) indicating the designation direction of the beam light 105. This is executed with reference to, for example, a table stored in the storage unit in advance.

  The light direction corresponding coordinate information 512, which is coordinate information indicating the setting direction of the beam light according to the user instruction calculated by the camera device side light direction designation information analysis unit 212, is transmitted to the light projecting device 10 via the communication unit 204. The information is input to the direction designation information / directing angle conversion unit 103.

(Step S104)
Next, in step S104, the light direction designation information / directing angle conversion unit 103 sets the position of the beam light 105 based on the light direction corresponding coordinate information 512 input from the camera device side light direction designation information analysis unit 212. For this reason, a setting angle 513 corresponding to the light direction is calculated.
The light direction corresponding setting angle 513 is, for example, a step angle for setting the directivity angle of the beam light 105 as described above.

  The light direction corresponding setting angle 513 generated by the light direction designation information / directivity angle converter 103 is output to the light directivity direction stability controller 104.

(Step S105)
Next, in step S <b> 105, the light orientation direction stability control unit 104 drives a step motor for setting the direction of the beam light 105 according to the input setting direction 513 corresponding to the light direction. By this processing, the beam light 105 is set in a direction according to the user operation, and the spotlight is irradiated to a position desired by the user.

(Step S106)
Thereafter, the light orientation direction stability control unit 104 sequentially inputs the displacement information of the beam light 105 detected by the light attitude sensor unit 108 as sensor detection information, and drives the beam light 105 according to the input sensor detection information. In other words, the beam light 105 is controlled by feedback control to which the sensor detection information is applied so that no deviation occurs in the directivity direction of the beam light 105.

This control is the normal stability control described with reference to FIG. 6, and the sensor detection signal of the light attitude sensor unit 106 is applied as it is to generate a correction control signal, and the beam is generated according to the generated correction control signal. Control to maintain the setting direction of the light 105 is performed.
In other words, signal conversion by the sensor detection fluctuation frequency converter (LPF) 108 is not performed, and control based on the correction control signal corresponding to the actual fluctuation frequency is performed.

[7-2. About the write direction control processing sequence in mode 2]
Next, the processing sequence of mode 2 (Search Light Cam mode) will be described with reference to the sequence diagram shown in FIG.
Mode 2 is also a setting mode used when a spotlight irradiation image is captured by the main camera 20 fixed to the independent camera fixing unit 12, and is an optimal mode for image capturing according to the following processing sequence.
(S1) The direction of the light is determined by operating the light projecting device input unit.
(S2) The subject is captured by the camera.
(S3) The normal stable control of the light attitude is started.

In this mode 2, first, the directivity direction of the light is determined by operating the input unit of the light projecting device 10. That is, the directivity direction of the beam light 11 is set by operating the light projector direction light direction instruction information input unit 17 shown in FIG.
Mode 2 is an optimal mode when it is difficult to confirm the subject to be photographed, such as at night, and it is possible to first confirm the subject by applying light.

The beam light control sequence in mode 2 will be described with reference to the sequence diagram shown in FIG.
FIG. 12 shows the following components from the left.
Projector side light direction designation information input unit 101,
Projector side light direction designation information analysis unit 102,
Mode setting unit 111,
Light direction designation information / directing angle converter 103,
Light attitude sensor unit 106,
Sensor detection fluctuation frequency converter (LPF) 108,
Light orientation angle stability control unit 104,
Each of these components corresponds to the configuration described with reference to FIGS. 9 and 10.
Hereinafter, the processing of each step shown in FIG. 12 will be described sequentially.

(Steps S21 to S23)
When the main camera 20 is attached to the light projecting device 10 and the power of the light projecting device 10 is turned on, first, the processes of steps S21 to S23 are started.
This process is a feedback control process for stably maintaining the beam light 105 at the initial setting position (the default position).

The beam light 105 of the light projecting device 10 is automatically driven and positioned at a preset initial position when the power is turned on.
Thereafter, in step S21, the light attitude sensor unit 106 outputs the displacement of the beam light 105 as a sensor detection signal to the light directivity angle stability control unit 104.

  In step S <b> 22, the light directivity angle stability control unit 104 generates a correction control signal for minimizing the displacement of the beam light 105 based on the sensor detection signal input from the light attitude sensor unit 106, and generates the correction control signal. Based on this, control for maintaining the beam light 105 at the initial position is executed.

  Step S23 is a step of continuously executing the posture stabilization control process executed as feedback control for maintaining the beam light direction based on the sensor detection signals of steps S21 to S22.

(Step S201)
After that, when mode 2 is set by a user operation on the mode input unit 110 of the light projecting device 10 in step S201, the mode setting unit 111 sets the mode 2, that is, as described with reference to FIG. The sensor detection information of the light attitude 106 is set to be directly input to the light directivity angle stability control unit 104 without being converted into a long-period signal.

(Step S202)
In step S <b> 202, the user performs an operation for directing the beam light 105 in a desired direction on the light projecting device-side light direction designation information input unit 101 of the light projecting device 10. The light projecting device side light direction designation information input unit 101 corresponds to the light projecting device side light direction designation information input unit 17 described with reference to FIG. 2, and is configured by, for example, a cross key, and includes the beam light 105 shown in FIG. It is a user operation part for inputting designation information of the directivity direction.

The user operates the cross key to input instruction information for directing the beam light 105 in a desired direction.
The light projecting device side light direction designation information input unit 101 outputs light direction designation information 521 as input information to the light projecting device side light direction designation information analysis unit 102.

(Step S203)
Next, in step S <b> 203, the light projecting device-side light direction designation information analysis unit 102 analyzes the operation information using the cross key and calculates, for example, coordinates (x, y) indicating the designated direction of the beam light 105. This is executed with reference to, for example, a table stored in the storage unit in advance.

  Light direction correspondence coordinate information 522 that is coordinate information indicating the setting direction of the beam light in accordance with the user instruction calculated by the light projecting device side light direction designation information analysis unit 102 is input to the light direction designation information / directing angle conversion unit 103. Is done.

(Step S204)
Next, in step S <b> 204, the light direction designation information / directing angle conversion unit 103 sets the position of the beam light 105 based on the light direction corresponding coordinate information 522 input from the light projecting device side light direction designation information analysis unit 102. For this purpose, a setting angle 523 corresponding to the light direction is calculated.
The light direction corresponding setting angle 523 is, for example, a step angle for setting the directivity angle of the beam light 105 as described above.

  The light direction corresponding setting angle 523 generated by the light direction designation information / directing angle conversion unit 103 is output to the light directing direction stability control unit 104.

(Step 205)
Next, in step S <b> 205, the light directivity direction stability control unit 104 drives a step motor for setting the direction of the beam light 105 according to the input setting direction 513 corresponding to the light direction. By this processing, the beam light 105 is set in a direction according to the user operation, and the spotlight is irradiated to a position desired by the user.

(Step S206)
Thereafter, the light orientation direction stability control unit 104 sequentially inputs the displacement information of the beam light 105 detected by the light attitude sensor unit 108 as sensor detection information, and drives the beam light 105 according to the input sensor detection information. In other words, the beam light 105 is controlled by feedback control to which the sensor detection information is applied so that no deviation occurs in the directivity direction of the beam light 105.

This control is the normal stability control described with reference to FIG. 6, and the sensor detection signal of the light attitude sensor unit 106 is applied as it is to generate a correction control signal, and the beam is generated according to the generated correction control signal. Control to maintain the setting direction of the light 105 is performed.
In other words, signal conversion by the sensor detection fluctuation frequency converter (LPF) 108 is not performed, and control based on the correction control signal corresponding to the actual fluctuation frequency is performed.

[7-3. About the write direction control processing sequence in mode 3]
Next, a processing sequence of mode 3 (Cam Doc Light mode) will be described with reference to FIG.
Mode 3 is a setting mode used when shooting a spotlight-irradiated image with the mini camera 30 fixed to the light interlocking camera fixing unit 13, and is an optimal mode when shooting an image according to the following processing sequence. .
(S1) Mode 3 is automatically set based on detection of mini camera mounting or detection of mini camera mounting and mini camera shake correction setting ON.
(S2) The direction of the light is determined by operating the light projecting device input unit.
(S3) The long-period stable control of the light posture is started.

The mode 3 setting is automatically set by the mode setting unit 111 of the light projecting device 10 when any of the following conditions is satisfied.
(A) Mini camera wearing detection (B) Mini camera wearing detection and mini camera shake correction on setting,
When either (A) or (B) is detected, the mode is set to mode 3. Various settings can be made as to which of (A) and (B) is applied, and a configuration that can be set by the user may be adopted.

First, the mode setting process sequence executed by the mode setting unit 111 will be described with reference to the flowcharts shown in FIGS.
FIG. 13 is a sequence for setting the mode to mode 3 only on the condition that (A) the mini camera is detected.

In step S311, the mode setting unit 111 determines whether or not the mini camera 30 is attached.
This is determined based on a detection signal from the mini camera attachment detection unit 131 of the light projecting device 10 shown in FIG.
The mini camera attachment detection unit 131 detects whether or not the mini camera 30 is attached to the light interlocking camera fixing unit 13 of the light projecting device 10 illustrated in FIG. 1 and outputs a detection signal to the mode setting unit 111.

The mode setting unit 111 determines whether or not the mini camera 30 is mounted based on the detection signal from the mini camera mounting detection unit 131.
If it is determined in step S311 that the mini camera 30 is not attached, the process proceeds to step S312 and the mode setting is maintained as it is. Specifically, the mode setting is mode 1 or 2.

  On the other hand, if it is determined in step S311 that the mini camera 30 is attached, the process proceeds to step S313 and the mode is set to mode 3.

  Next, referring to FIG. 14, (B) the setting of the mode is set to mode 3 on condition that these two conditions are satisfied, (B) mini camera mounting detection and mini camera shake correction ON setting. The sequence to be performed will be described.

In step S321, the mode setting unit 111 determines whether or not the mini camera 30 is attached.
This is determined based on a detection signal from the mini camera attachment detection unit 131 of the light projecting device 10 shown in FIG.
If it is determined in step S321 that the mini camera 30 is not attached, the process proceeds to step S323, and the mode setting is maintained as it is. Specifically, the mode setting is mode 1 or 2.

On the other hand, if it is determined in step S321 that the mini camera 30 is attached, the process proceeds to step S322, and it is further determined whether or not the camera shake correction function of the mini camera 30 is set to valid (on).
This is determined based on information input from the mini-camera compatible communication unit 130 of the light projecting device 10 illustrated in FIG.
The mini-camera compatible communication unit 130 of the light projecting device 10 illustrated in FIG. 10 inputs setting information input via the communication unit 307 of the mini camera 30 and notifies the mode setting unit 111 of the setting information.
Note that the mini camera 30 performs a process of outputting the setting information of the mini camera 30 (setting information of the camera shake correction function of the mini camera 30) to the light projector 10 based on the control of the control unit 301.

  If it is determined in step S322 that the camera shake correction function of the mini camera 30 is not on, the process proceeds to step S323, and the mode setting is maintained as it is. Specifically, the mode setting is mode 1 or 2.

  On the other hand, if it is determined in step S322 that the camera shake correction function of the mini camera 30 is on, the process proceeds to step S324, and the mode is set to mode 3.

Note that the mode setting unit 111 performs a process of changing the control process executed by the light directivity angle stability control unit 104 to the long-period stability control when the mode 3 is set.
As described above, normal stability control is a method used as a correction control signal for stable control of the beam light 105 without converting sensor detection information, and long-period stability control is sensor detection information detected by sensor detection. A method for controlling the beam light by inputting it to a fluctuation frequency converter (LPF) 108 and converting it into a long-period signal, and generating a correction control signal for stable control of the beam light 105 based on the converted signal. It is.
In mode 3, feedback control based on the long-period correction control signal is executed, and gentle drive control is performed.

Next, the beam light control sequence in this mode 3 will be described with reference to the sequence diagram shown in FIG.
FIG. 15 shows the following components from the left.
Projector side light direction designation information input unit 101,
Projector side light direction designation information analysis unit 102,
Mode setting unit 111,
Light direction designation information / directing angle converter 103,
Light attitude sensor unit 106,
Sensor detection fluctuation frequency converter (LPF) 108,
Light orientation angle stability control unit 104,
Each of these components corresponds to the configuration described with reference to FIGS. 9 and 10.
Hereinafter, the processing of each step shown in FIG. 15 will be described sequentially.

(Steps S31 to S33)
When the main camera 20 is attached to the light projecting device 10 and the power of the light projecting device 10 is set to ON, first, the processes of steps S31 to S33 are started.
This process is a feedback control process for stably maintaining the beam light 105 at the initial setting position (the default position).

The beam light 105 of the light projecting device 10 is automatically driven and positioned at a preset initial position when the power is turned on.
Thereafter, in step S31, the light attitude sensor unit 106 outputs the displacement of the beam light 105 as a sensor detection signal to the light directivity angle stability control unit 104.

  In step S <b> 32, the light directivity angle stability control unit 104 generates a correction control signal for minimizing the displacement of the beam light 105 based on the sensor detection signal input from the light attitude sensor unit 106, and generates the correction control signal. Based on this, control for maintaining the beam light 105 at the initial position is executed.

  Step S33 is a step of continuously executing a posture stabilization control process executed as feedback control for maintaining the beam light direction based on the sensor detection signals of steps S31 to S32.

(Step S351)
After that, in step S351, the mode setting unit 111 sets mode 3.
This setting is executed according to the sequence described above with reference to the flowcharts of FIGS. That is, the mode 3 is automatically set by the mode setting unit 111 of the light projecting device 10 when any of the following conditions is satisfied.
(A) Mini camera wearing detection (B) Mini camera wearing detection and mini camera shake correction on setting,

(Step S352)
In step S <b> 352, the user performs an operation for directing the beam light 105 in a desired direction on the light projecting device side light direction designation information input unit 101 of the light projecting device 10. The light projecting device side light direction designation information input unit 101 corresponds to the light projecting device side light direction designation information input unit 17 described with reference to FIG. 2, and is configured by, for example, a cross key, and includes the beam light 105 shown in FIG. It is a user operation part for inputting designation information of the directivity direction.

The user operates the cross key to input instruction information for directing the beam light 105 in a desired direction.
The light projecting device side light direction designation information input unit 101 outputs light direction designation information 531 as input information to the light projecting device side light direction designation information analysis unit 102.

(Step S353)
Next, in step S353, the light projecting device-side light direction designation information analysis unit 102 analyzes the operation information using the cross key and calculates, for example, coordinates (x, y) indicating the designated direction of the beam light 105. This is executed with reference to, for example, a table stored in the storage unit in advance.

  Light direction correspondence coordinate information 532 that is coordinate information indicating the setting direction of the beam light according to the user instruction calculated by the light projection device side light direction designation information analysis unit 102 is input to the light direction designation information / directing angle conversion unit 103. Is done.

(Step S354)
Next, in step S354, the light direction designation information / directivity angle conversion unit 103 sets the position of the beam light 105 based on the light direction correspondence coordinate information 532 input from the light projecting device side light direction designation information analysis unit 102. For this purpose, a setting angle 533 corresponding to the light direction is calculated.
The light direction corresponding setting angle 533 is, for example, a step angle for setting the directivity angle of the beam light 105 as described above.

  The light direction corresponding setting angle 533 generated by the light direction designation information / directivity angle converter 103 is output to the light directivity direction stability controller 104.

(Step 355)
Next, in step S355, the light directivity direction stability control unit 104 drives a step motor for setting the direction of the beam light 105 in accordance with the input setting direction corresponding to the light direction 533. By this processing, the beam light 105 is set in a direction according to the user operation, and the spotlight is irradiated to a position desired by the user.

(Step S356)
Thereafter, the light orientation direction stability control unit 104 sequentially inputs the displacement information of the beam light 105 detected by the light attitude sensor unit 108 as sensor detection information, and drives the beam light 105 according to the input sensor detection information. In other words, the beam light 105 is controlled by feedback control to which the sensor detection information is applied so that no deviation occurs in the directivity direction of the beam light 105.

This control is a control at the time of setting the mode 3, and is the long-period stable control described above with reference to FIGS.
That is, first, the sensor detection signal of the light attitude sensor unit 106 is input to the sensor detection fluctuation frequency conversion unit (LPF) 108 and converted into a long-period sensor detection signal.
Thereafter, a long-period correction control signal is generated based on the converted long-period sensor detection signal, and feedback control is performed to maintain the beam light at a set position by the generated long-period correction control signal. .

[8. Summary of composition of the present disclosure]
As described above, the embodiments of the present disclosure have been described in detail with reference to specific embodiments. However, it is obvious that those skilled in the art can make modifications and substitutions of the embodiments without departing from the gist of the present disclosure. In other words, the present invention has been disclosed in the form of exemplification, and should not be interpreted in a limited manner. In order to determine the gist of the present disclosure, the claims should be taken into consideration.

The technology disclosed in this specification can take the following configurations.
(1) a beam light that performs light irradiation;
A light interlocking camera fixing unit that is driven according to the direction of the beam light;
A light directivity angle stability control unit that performs directivity control of the beam light;
The light directivity angle stability controller is
Based on the position correction signal according to the converted sensor detection signal obtained by converting the sensor detection signal, which is the displacement detection signal of the beam light, into the long-period type in the shooting processing execution mode by the camera mounted on the light-linked camera fixing unit, A light projecting device that executes a long-period conversion signal application control process for maintaining a directivity direction of the beam light.

  (2) The light projection device includes a camera attachment detection unit that detects camera attachment to the light-linked camera fixing unit, and the light directivity angle stability control unit is based on detection information of the camera attachment unit. The light projection device according to (1), wherein the long-period conversion signal application control process is executed on the condition that a camera is mounted on the light-linked camera fixing unit.

  (3) Whether the light projecting device has a camera mounting detection unit that detects camera mounting on the light interlocking camera fixing unit and a camera shake correction function of the camera mounted on the light interlocking camera fixing unit. The light directivity angle stability control unit detects that the camera is mounted on the light interlocking camera fixing unit based on the detection information of the camera mounting unit, and The long-period conversion signal application control process is performed on the condition that the camera shake correction function of the camera mounted on the light-linked camera fixing unit is valid based on input information from the communication unit. The light projecting device according to (1) to be executed.

  (4) The light projecting device further includes a light non-interlocking independent camera fixing unit that is not driven in accordance with the directivity direction of the beam light, and the light orientation angle stability control unit is fixed to the independent camera fixing unit. In the imaging processing execution mode by the camera mounted on the part, a sensor detection signal corresponding control process for maintaining the direction of the beam light is executed based on a position correction signal corresponding to the sensor detection signal that is a displacement detection signal of the beam light. The light projecting device according to any one of (1) to (3).

  (5) The light projecting device includes a mode setting unit that sets a photographing process execution mode, and the light directivity angle stability control unit is configured so that the independent camera fixing unit is set when the mode setting unit is set to mode 1. The direction of the beam light is controlled in accordance with user operation information on the input unit of the mounted camera, and when the setting of the mode setting unit is mode 2, in accordance with user operation information on the input unit of the light projecting device The light projecting device according to (4), wherein a directivity direction of the beam light is controlled.

  (6) The light projecting device according to (5), further including: a light information directivity information-directivity angle conversion unit that generates drive angle information of the stepping motor for driving the beam light based on the user operation information. Floodlight device.

  (7) The light projecting device detects the displacement of the beam light, outputs a sensor detection signal, and inputs the sensor detection signal to convert the sensor detection signal into a long-period signal. A sensor detection fluctuation frequency conversion unit, and the light directivity angle stability control unit applies the long period type signal generated by the sensor detection fluctuation frequency conversion unit when executing the long period conversion signal application control process. The light projection device according to any one of (1) to (6), wherein the long-period conversion signal application control process is executed based on the generated long-period position correction signal.

  (8) The light projection device according to (7), wherein the sensor detection fluctuation frequency conversion unit includes a low-pass filter (LPF).

(9) an imaging unit;
A camera shake function setting unit for enabling and disabling the camera shake correction function;
Having a control part and a communication part,
The controller is
An imaging apparatus that outputs camera shake function setting information indicating whether the camera shake function setting is valid or invalid via the communication unit.

(10) A photographing system having a light projecting device having a beam light and an imaging device for photographing a light irradiation image by the beam light,
The light projecting device is:
A beam light that emits light,
A light interlocking camera fixing unit that is driven according to the direction of the beam light;
A light directivity angle stability control unit that performs directivity control of the beam light; a camera mounting detection unit that detects camera mounting on the light-linked camera fixing unit;
A communication unit for inputting information as to whether or not the camera shake correction function of the camera mounted on the light-linked camera fixing unit is valid;
The imaging device attached to the light-linked camera fixing unit outputs information on whether or not the camera shake correction function is effective to the light projecting device,
The light directivity angle stability control unit of the light projecting device,
Based on the detection information of the camera mounting unit, it is detected that a camera is mounted on the light interlocking camera fixing unit, and on the basis of the input information from the communication unit, the light interlocking camera fixing unit On the condition that the camera shake correction function of the mounted camera is confirmed to be effective, a position correction signal corresponding to the converted sensor detection signal obtained by converting the sensor detection signal, which is the displacement detection signal of the beam light, into a long-period type is used. An imaging system for executing a long-period conversion signal application control process for maintaining the directivity direction of the beam light.

(11) A beam light control method executed in the light projecting device,
The light projecting device is:
A beam light that emits light,
A light interlocking camera fixing unit that is driven according to the direction of the beam light;
A light directivity angle stability control unit that performs directivity control of the beam light;
The light orientation angle stability controller is
Based on the position correction signal according to the converted sensor detection signal obtained by converting the sensor detection signal, which is the displacement detection signal of the beam light, into the long-period type in the shooting processing execution mode by the camera mounted on the light-linked camera fixing unit, A beam light control method for executing a long-period conversion signal application control process for maintaining a directivity direction of the beam light.

(12) A program for executing a beam light control process executed in the light projecting device,
The light projecting device is:
A beam light that emits light,
A light interlocking camera fixing unit that is driven according to the direction of the beam light;
A light directivity angle stability control unit that performs directivity control of the beam light;
The program is stored in the light orientation angle stability control unit.
Based on the position correction signal according to the converted sensor detection signal obtained by converting the sensor detection signal, which is the displacement detection signal of the beam light, into the long-period type in the shooting processing execution mode by the camera mounted on the light-linked camera fixing unit, A program for executing a long-period conversion signal application control process for maintaining the directivity direction of the beam light.

  The series of processing described in the specification can be executed by hardware, software, or a combined configuration of both. When executing processing by software, the program recording the processing sequence is installed in a memory in a computer incorporated in dedicated hardware and executed, or the program is executed on a general-purpose computer capable of executing various processing. It can be installed and run. For example, the program can be recorded in advance on a recording medium. In addition to being installed on a computer from a recording medium, the program can be received via a network such as a LAN (Local Area Network) or the Internet and can be installed on a recording medium such as a built-in hard disk.

  Note that the various processes described in the specification are not only executed in time series according to the description, but may be executed in parallel or individually according to the processing capability of the apparatus that executes the processes or as necessary. Further, in this specification, the system is a logical set configuration of a plurality of devices, and the devices of each configuration are not limited to being in the same casing.

As described above, according to the configuration of the embodiment of the present disclosure, the directivity control of the beam light according to the camera shooting execution mode is executed.
Specifically, the projector includes a beam light that irradiates light, a light-linked camera fixing unit that is driven according to the directivity direction of the beam light, and a light directivity angle stability control unit that performs directivity control of the beam light. In the optical device, the sensor detection signal, which is a displacement detection signal of the beam light, is converted into a long-period type by the LPF in the shooting processing execution mode by the camera equipped with the light-linked camera fixing unit. The light directivity angle stability control unit generates a long-period position correction signal corresponding to the long-period conversion sensor detection signal, and applies the generated long-period position correction signal to maintain the beam light directivity direction. Perform processing.
With this configuration, it is possible to perform optimal directivity control of the beam light in accordance with the camera shooting execution mode.

DESCRIPTION OF SYMBOLS 10 Light projector 11 Beam light 12 Independent camera fixing part 13 Light interlocking camera fixing part 15 Horizontal direction rotation axis 16 Vertical direction rotation axis 17 Light projector direction light direction designation information input part 18 Irradiation area expansion / contraction control part DESCRIPTION OF SYMBOLS 19 Mode setting part 21 Display part 22 Camera apparatus side light direction designation | designated information input part 101 Light projector side light direction designation | designated information input part 102 Light projector side light direction designation | designated information analysis part 103 Light direction designation | designated information / directivity angle conversion part 104 Light orientation angle stability control unit 105 Beam light 106 Light attitude sensor unit 107 Switch 108 Sensor detection fluctuation frequency conversion unit (LPF)
DESCRIPTION OF SYMBOLS 110 Mode input part 111 Mode setting part 120 Main camera corresponding | compatible communication part 131 Mini camera mounting | wearing detection part 132 Mini camera corresponding | compatible communication part 201 Control part 202 Input part 203 Output part 204 Communication part 205 Imaging part 206 Image processing part 207 Storage part 211 Camera Device side light direction designation information input unit 212 Camera device side light direction designation information analysis unit 301 Control unit 302 Input unit 303 Output unit 304 Imaging unit 305 Image processing unit 306 Storage unit 307 Communication unit 311 Camera shake correction on / off setting unit

Claims (12)

A beam light that emits light,
A light interlocking camera fixing unit that is driven according to the direction of the beam light;
A light directivity angle stability control unit that performs directivity control of the beam light;
The light directivity angle stability controller is
Based on the position correction signal according to the converted sensor detection signal obtained by converting the sensor detection signal, which is the displacement detection signal of the beam light, into the long-period type in the shooting processing execution mode by the camera mounted on the light-linked camera fixing unit, A light projecting device that executes a long-period conversion signal application control process for maintaining a directivity direction of the beam light. The light projecting device is:
A camera mounting detection unit that detects camera mounting on the light-linked camera fixing unit;
The light directivity angle stability controller is
The long-period conversion signal application control process is executed on the condition that it is detected that a camera is mounted on the light-linked camera fixing unit based on detection information of the camera mounting unit. Floodlighting device. The light projecting device is:
A camera attachment detection unit for detecting camera attachment to the light-linked camera fixing unit;
A communication unit for inputting information as to whether or not the camera shake correction function of the camera mounted on the light-linked camera fixing unit is valid;
The light directivity angle stability controller is
Based on the detection information of the camera mounting unit, it is detected that a camera is mounted on the light interlocking camera fixing unit, and on the basis of the input information from the communication unit, the light interlocking camera fixing unit The light projecting device according to claim 1, wherein the long-period conversion signal application control process is executed on the condition that the camera shake correction function of the mounted camera is confirmed to be effective. The light projecting device further includes:
A light non-interlocking independent camera fixing unit that is not driven according to the direction of the beam light,
The light directivity angle stability controller is
In the photographing processing execution mode by the camera mounted on the independent camera fixing unit, a sensor detection signal for maintaining the beam light directivity direction based on a position correction signal corresponding to a sensor detection signal that is a displacement detection signal of the beam light. The light projecting device according to claim 1, wherein a response control process is executed. The light projecting device is:
It has a mode setting unit that sets the shooting process execution mode,
The light directivity angle stability controller is
When the setting of the mode setting unit is mode 1,
In accordance with user operation information on the input unit of the camera mounted on the independent camera fixing unit, the directing direction of the beam light is controlled,
When the setting of the mode setting unit is mode 2,
The light projection device according to claim 4, wherein a directivity direction of the beam light is controlled in accordance with user operation information with respect to an input unit of the light projection device. The light projecting device is:
The light projecting device according to claim 5, further comprising: a light information directivity information-directivity angle conversion unit that generates drive angle information of the stepping motor for driving the beam light based on the user operation information. The light projecting device is:
A light attitude sensor unit that detects a displacement of the beam light and outputs a sensor detection signal;
The sensor detection signal is input, and the sensor detection fluctuation frequency conversion unit that converts the sensor detection signal into a long-period signal is provided.
The light directivity angle stability controller is
When executing the long-period conversion signal application control process, the long-period conversion signal application control based on the long-period position correction signal generated by applying the long-period signal generated by the sensor detection fluctuation frequency converter The light projecting device according to claim 1 which performs processing.   The light projection device according to claim 7, wherein the sensor detection fluctuation frequency conversion unit includes a low-pass filter (LPF). An imaging unit;
A camera shake function setting unit for enabling and disabling the camera shake correction function;
Having a control part and a communication part,
The controller is
An imaging apparatus that outputs camera shake function setting information indicating whether the camera shake function setting is valid or invalid via the communication unit. A projection system having a light projection device having a beam light and an imaging device for photographing a light irradiation image by the beam light,
The light projecting device is:
A beam light that emits light,
A light interlocking camera fixing unit that is driven according to the direction of the beam light;
A light directivity angle stability control unit that performs directivity control of the beam light; a camera mounting detection unit that detects camera mounting on the light-linked camera fixing unit;
A communication unit for inputting information as to whether or not the camera shake correction function of the camera mounted on the light-linked camera fixing unit is valid;
The imaging device attached to the light-linked camera fixing unit outputs information on whether or not the camera shake correction function is effective to the light projecting device,
The light directivity angle stability control unit of the light projecting device,
Based on the detection information of the camera mounting unit, it is detected that a camera is mounted on the light interlocking camera fixing unit, and on the basis of the input information from the communication unit, the light interlocking camera fixing unit On the condition that the camera shake correction function of the mounted camera is confirmed to be effective, a position correction signal corresponding to the converted sensor detection signal obtained by converting the sensor detection signal, which is the displacement detection signal of the beam light, into a long-period type is used. An imaging system for executing a long-period conversion signal application control process for maintaining the directivity direction of the beam light. It is a beam light control method executed in the light projecting device,
The light projecting device is:
A beam light that emits light,
A light interlocking camera fixing unit that is driven according to the direction of the beam light;
A light directivity angle stability control unit that performs directivity control of the beam light;
The light orientation angle stability controller is
Based on the position correction signal according to the converted sensor detection signal obtained by converting the sensor detection signal, which is the displacement detection signal of the beam light, into the long-period type in the shooting processing execution mode by the camera mounted on the light-linked camera fixing unit, A beam light control method for executing a long-period conversion signal application control process for maintaining a directivity direction of the beam light. It is a program for executing a beam light control process executed in the light projecting device,
The light projecting device is:
A beam light that emits light,
A light interlocking camera fixing unit that is driven according to the direction of the beam light;
A light directivity angle stability control unit that performs directivity control of the beam light;
The program is stored in the light orientation angle stability control unit.
Based on the position correction signal according to the converted sensor detection signal obtained by converting the sensor detection signal, which is the displacement detection signal of the beam light, into the long-period type in the shooting processing execution mode by the camera mounted on the light-linked camera fixing unit, A program for executing a long-period conversion signal application control process for maintaining the directivity direction of the beam light.