JP2008046410A - Photographic illuminator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a photographic illuminator by which a high-quality picture can be taken in a short time in a photographing studio providing commercial photographs and high-quality portraits. <P>SOLUTION: The photographic illuminator includes: an LED light source; an input part to which a photographing signal is inputted; and a light emission control part for controlling the LED light source to emit light in a first light emission state, and to emit light for a prescribed time in a second light emission state after the photographing signal is inputted to the input part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an illumination device for photographing.

Today's digitalization is progressing, and in photo studios that offer digital photography equipment for commercial photography and high-quality studio portraits, high-quality images must be taken in a short time. Improvement of the illuminating device suitable for the image sensor used is being studied.
For example, a shooting system that provides lighting conditions according to the shooting situation by detecting the brightness in the studio and the type of light source used, and controlling the flash emission based on the detection result Has been proposed (see, for example, Patent Document 1).

On the other hand, improvement of the light source of the illuminating device for photography has been studied, and a photographic illumination device using a light emitting diode (LED) as a light source has been proposed. For example, a photographic illumination device including a white LED element composed of a combination of a blue light emitting LED and a yellow light emitting phosphor and at least one red light emitting LED can improve color rendering and prevent a sense of incongruity. ing. Moreover, the light from an LED light source is efficiently used by the illuminating device which has the reflector which reflects the light discharge | released from the white LED light source ahead.
JP 2005-301096 A (refer to claims, detailed description of the invention, and drawings)

In order to capture high-quality images in a short time, preparation (such as modeling), such as focusing, subject posing, and adjustment of the color rendering properties of the lighting device, can be performed efficiently before shooting. There was a need to do.
However, the illumination device used in Patent Document 1 emits light only at the time of shooting, and must be operated under an auxiliary light source with extremely low illuminance at the time of modeling when focusing or posing the subject. It was difficult to perform accurate focusing quickly.

  In addition, since the light emission time of a so-called strobe device that emits light only during shooting is extremely short, a device called `` strobe meter '' that estimates the illuminance at the time of shooting must be used to determine exposure, The efficiency of the shooting work was low.

  In addition, even when illuminance is secured using an auxiliary light source such as a fluorescent lamp or an incandescent lamp, a light source with a color rendering property different from that at the time of shooting will be used. It was impossible to predict whether the subject was irradiated with light, and it was inefficient in reproducing the photographer's intention to draw.

  Moreover, in a digital photographing device, exposure control and color adjustment have been performed on the photographing device side in accordance with a given light quantity and light source type, but an image sensor in which the illuminance and chromaticity of a subject are used in the photographing device. If it is not within the effective light receiving range (dynamic range), the loss of image quality is inevitable.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a photographing illumination device capable of photographing a high-quality image in a short time in a photo studio that provides commercial photographs and high-quality studio portraits.

A first invention of the present invention for solving the above-mentioned problems is a photographing illumination device as described in claim 1, and is as follows.
An illumination device for photographing, wherein a light emitting diode light source, an input unit for inputting a photographing signal, and the light emitting diode light source emit light at an arbitrary light emission amount for a predetermined time after the photographing signal is input to the input unit. And a light emission control unit.

A second invention of the present invention for solving the above-mentioned problems is a photographing illumination device as described in claim 2, and is as follows.
In addition to the first aspect of the present invention, the light emitting diode light source is driven by a pulsed drive current, and the light emission control unit controls a pulse of the drive current supplied to the light emitting diode light source. is there.

A third invention of the present invention for solving the above-mentioned problems is a lighting apparatus for photographing as described in claim 3, and is as follows.
In addition to the invention described in claim 1 or 2, the light emission control unit is configured so that, in the first light emission state, the light emitting diode light source is configured so that the light emission amount is 50% or less of the second light emission state. It is the structure which controls.

A fourth invention of the present invention for solving the above problem is a photographing illumination device as described in claim 4, and is as follows.
In addition to the invention according to any one of claims 1 to 3, the light emission control unit is configured to control at least one of a current and a voltage of a drive current supplied to the light emitting diode light source.

A fifth invention of the present invention for solving the above-mentioned problems is a photographing illumination device as described in claim 5, and is as follows.
In addition to the invention of any one of claims 1 to 4, a shooting information input unit for inputting shooting information, and a light emission state associated in advance with shooting information input by the shooting information input unit A control information storage unit that stores control information, and the light emission control unit is configured to control light emission in the second light emission state based on the light emission state control information stored in the control information storage unit. is there.

Since the photographing illumination device according to the present invention has the configuration as described above, the following effects can be obtained.
According to the present invention, the light emitting diode light source emits light in the first light emitting state, and after the photographing signal is input to the input unit, it emits light in the second light emitting state for a predetermined time. Modeling can be performed using an illumination device having the same color rendering property and the same light source arrangement, so that accurate focusing can be performed quickly and light very similar to that at the time of shooting can be obtained. Since the object can be irradiated, it is extremely efficient in determining the exposure and reproducing the photographer's intention to draw, and a high-quality image can be taken in a short time.

  An imaging illumination device, a light-emitting diode light source driven with a pulsed drive current, an input unit for inputting an imaging signal, and the light-emitting diode light source after the imaging signal is input to the input unit And a light emission control unit that controls a pulse of a drive current supplied to the light emitting diode light source that emits light at an arbitrary light emission amount for a predetermined time.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic view showing an example of a photographic system to which a photographic illumination device according to the present invention is applied. In the photographic system 1, the subject H is always irradiated with light from the LED lights 10a and 10b, and the LED lights 10a and 10b emit light with high illuminance in synchronization with the camera as the photographing means.

The photographing system 1 is used for photographing with the camera 3 which is photographing means for photographing the subject H, and the light emission amounts of the LED lights 10a and 10b which illuminate the subject when photographing with the camera 3, and the photography system 1. The power supply device 4 is controlled by a control device 2 that controls various devices to be supplied and supplies power to each of the LED lights 10a and 10b.
The photographing illumination device according to the present invention includes LED lights 10a and 10b, a control device 2, and a power supply device 4.

  The LED lights 10a and 10b using the light emitting diode (LED) light source according to the present invention are arranged around the subject H and constitute a part of the photographing illumination device according to the present invention. The LED lights 10a and 10b have different functions in photography such as plain lights, front lights, side lights, Rembrandt lights, background lights, accent lights, top lights, skylights, etc. depending on where they are installed. Since they have the same configuration, they will be collectively referred to as LED lights 10 in the following description.

  Details of the LED light 10 will be described with reference to FIG. FIG. 2 is a front view of the LED light 10.

  The LED lights 10 are arranged in a plurality of rows 101 and columns 102 on a white substrate 12 that also functions as a reflector, thereby forming a two-dimensional array of light emitting diode (LED) light sources 11. The array of the LED light sources 11 is a two-dimensional array in the present embodiment, but other configurations such as a radial array and a staggered array are possible. By arranging the LED light sources 11, it is possible to provide a so-called “surface light source” that provides a uniform amount of light in a wider range than the subject or shooting range, and can easily provide high-quality photographs. It becomes. In order to provide a more uniform light amount, a diffusion plate (not shown) may be provided.

The LED light source 11 includes a white LED light source 11W, a green LED light source 11G, a red LED light source 11R, and a magenta color LED light source 11M. As the white LED light source 11W, a high-luminance light-emitting type in which a yellow light-emitting phosphor is combined with a blue light-emitting LED is typically used.
In general, the white LED light source 11W is relatively inexpensive and can provide high brightness, but has a small red component and green component in light emission. If the subject is irradiated with only the white LED light source 11W as a light source to shoot a subject, the photographed image is uncomfortable. It may be memorable. Therefore, by mixing a white LED light source 11W that provides high-luminance light emission with a green LED light source 11G, a magenta color LED light source 11M, and a red LED light source 11R that compensate for the insufficient color components, these light emission are mixed, and the LED The color rendering properties of light emitted from the light 10 can be improved.

  In particular, when a solid-state imaging device such as a CCD (Charge Coupled Device) or CMOS (Complementary Metal Oxide Semiconductor) is used for the camera 3, light emission suitable for the spectral sensitivity of the solid-state imaging device can be easily provided, and the subject has This is preferable in that the original color information can be faithfully reproduced.

  In the present embodiment, white LED rows 101W composed of white LED light sources 11W that are uniformly arranged in a necessary number and red LED light sources 11R that are about 1/5 to 1/5 the number of white LED light sources 11W are evenly distributed. Further, the green LED light sources 11G and the magenta LED light sources 11M necessary for the spectral sensitivity of the image sensor are alternately arranged with the colored LED rows 101C arranged in the same number as the red LED light sources 11R. Like to do. Note that the number, color quality, and arrangement of the red LED light source 11R, the green LED light source 11G, and the magenta LED light source 11M can be appropriately changed depending on the light emission amount of the LED light source 11 of each color, the spectral characteristics of the image sensor, and the shooting theme. It is.

  In this way, by arranging the emission colors of the LED light sources 11 constituting the LED light 10 in a predetermined ratio in advance, in the light emission control of the LED light sources 11 at the time of modeling and shooting, the individual LED light sources 11 of the respective colors are individually controlled. Even when the light emission amount control is omitted, it is possible to provide light emission in accordance with the characteristics of the image sensor and the shooting theme, which is preferable in that the configuration of the control device 2 can be simplified.

  Returning to FIG. 1, the control device 2 includes a control unit 21, a storage unit 22, an operation display unit 23, an interface 24, and the like. In conjunction with the operation of the camera 3, the LED light 10, the power supply device 4, and not shown. Control other devices such as roll screens.

  The control unit 21 includes a CPU (Central Processing Unit) (not shown), a ROM (Read Only Memory) that stores various control programs, a RAM (Random Access Memory) that temporarily stores image data, and the like. Each part of the apparatus 2 is controlled.

  The storage unit 22 is configured by an EEPROM (Electronically Erasable and Programmable Read Only Memory) (not shown), and stores preset control information of the LED light 10 and various information input from the operation display unit 23 and the interface 24.

The operation display unit 23 includes a display device such as a liquid crystal panel and an input device such as a mouse or a keyboard. The operation display unit 23 has attributes of the subject H (skin color by adult, child, man, woman, number of people, ethnic species, etc.), subject H Various information necessary for operating the photographing system 1 such as the background of the image is input and an image photographed by the camera 3 is displayed.
The operation display unit 23 is separated from the control device 2 via an interface 24 compliant with a standard such as USB (Universal Serial Bus) or IEEE 1394 (the Institute of Electrical and Electronics Engineers 1394). Needless to say, remote control is possible.

  The interface 24 is connected to the camera 3, the power supply device 4, and various sensors such as an illuminometer and a colorimeter (not shown) via the network N, and functions as an input unit for inputting a photographing signal. An image recording start signal and information on photometry and colorimetry of the subject H are input from the camera 3, and illuminance of the LED light 10 and information on colorimetry of the subject H are input from various sensors (not shown). In addition, a control signal is output to the power supply device 4 and the camera 3.

The camera 3 includes a photographing lens, an image sensor, an A / D conversion unit, an image processing unit, an operation unit, a display unit, a storage unit, and the like (not shown). The image of the subject H is projected onto the image sensor through the photographing lens, the subject image converted into an electric signal by the image sensor is converted into a digital signal by the A / D converter, and various video signal processing is performed by the image processor. Is stored in the storage unit. When the storage format is the JPEG format, various video signal processes are performed in the image processing unit, and then compressed and stored in the storage unit.
The camera 3 may be a digital still camera that records still images or a digital movie camera that records moving images, but the start of image recording is started by an operation of an operation unit (not shown). .

  The power supply device 4 includes a rectifier circuit, a switching circuit, a capacitor, and the like (not shown), and supplies power supplied from a commercial power supply (not shown) to the LED light 10 based on the control of the control device 2. The power supplied from the power supply device 4 to the LED light 10 is DC power in which the current, voltage, and pulse width are controlled.

  Next, an example of the operation of the photographing system to which the photographing illumination device according to the present invention is applied will be described with reference to FIGS.

  FIG. 3 is a flowchart showing processing during a photographing operation executed by the photographing system 1 shown in FIG. In the present embodiment, still image shooting using the camera 3 as a digital still camera is taken as an example, but the present invention is not limited to this. Further, all the devices related to the photographing system 1 are turned on. That is, the LED light 10 emits light in the first light emission state in the step S101.

  In step S <b> 101, various conditions relating to photographing are input from the operation display unit 23 or the interface 24 of the control device 2. For example, the operation display unit 23 receives the attributes of the subject H (adult, children, men, women, number of people, skin color according to ethnic species, etc.), the type of background to be used, and the layout of the LED light 10, and the interface 24. Is input with the photographing lens identification of the camera 3, shutter speed, aperture value and sensitivity of the image sensor, illuminance and color temperature measured by an illuminometer or colorimeter (not shown), and the like.

  An example of imaging conditions input from the operation display unit 23 will be described with reference to FIG. FIG. 4 is an example of an imaging condition input screen displayed on the operation display unit 23 of the control device 2. On the shooting condition input screen 230, a subject information input unit 231 for inputting subject information, a light amount adjustment unit 232 for adjusting the light amount of each of the plurality of LED lights 10, and subject information input by the subject information input unit 231 A storage button 233 that associates the amount of light input by the light amount adjustment unit 232 and stores it in the storage unit 22 shown in FIG. 1, and the amount of light emitted from the LED light 10 during modeling and the amount of light emitted from the LED light 10 during shooting. A light amount difference setting unit 234 that sets a light amount difference and an LED light display unit 235 that indicates an operation state of the plurality of LED lights 10 are provided.

  The subject information input unit 231 selects a preset combination of the attributes of the subject H. The combination of the attributes of the subject H will be described later.

  The light amount adjusting unit 232 adjusts the light amount of each of the plurality of LED lights 10 arranged. In this embodiment, the light amount adjusting unit 232 selects any one of the sky light 232a, the side light 232b, and the front light 232c. The emitted light quantity of the LED light 10 is input by the light quantity selection unit 232d. In conjunction with the selected LED light 10, the selected skylight 235a, sidelight 235b, and frontlight 235c are displayed in reverse on the LED light display section 235.

  The light amount difference setting unit 234 can input a light amount difference between the light emission amount of the LED light 10 at the time of modeling and the light emission amount of the LED light 10 at the time of shooting in Ev (Exposure Value). Since 1Ev corresponds to one stop for the camera aperture and double or one-half for the shutter speed, it is easy for the photographer to predict the light emission amount at the time of shooting relative to the light emission amount at the time of modeling. Become. In addition, the exposure correction control operated by the camera 3 can be set to “−1 Ev” or “−2 Ev”, and the automatic exposure control of the camera 3 can be used to perform shooting such as actual shooting with light emission at the time of modeling. It becomes possible.

  For frequently used shooting conditions such as portraits and family photos, the set shooting information can be additionally registered as a preset with the memory button 233, and the shooting conditions can be entered at once by selecting a preset. It has become.

  Returning to FIG. 3, in step S102, the white LED light source 11W, the red LED light source 11R, the green LED light source 11G, and the magenta color LED light source 11M constituting the LED light 10 are photographed based on the photographing conditions input in step S101. The amount of emitted light is determined. In the present embodiment, the control information of the LED light 10 stored in advance in the storage unit 22 of the control device 2 is read based on the age group of the subject H, the skin color and ethnicity of the ethnic species input in step S101. It is supposed to be. Table 1 below shows an example of control information stored in the storage unit 22. In Table 1, the amount of light emission at the time of photographing of each of the white LED light source 11W, the red LED light source 11R, the green LED light source 11G, and the magenta color LED light source 11M is 12 steps from a minimum value 0 (no light emission) to a maximum value 11. Show. The amount of light emission during modeling is 1 to 4 for all of the white LED light source 11W, the red LED light source 11R, the green LED light source 11G, and the magenta color LED light source 11M.

In Table 1, when the subject H is 5: Female A, the amount of light emitted by the skylight (light source directly below the ceiling) is set to be relatively high to produce a bright impression on the entire surface. A light source having an angle of about 45 degrees obliquely above the front of the subject is irradiated with approximately the same brightness, and a side light (light source from the side of the subject) is weakly irradiated to correct a shadowed portion. In addition, when the subject H is 13: colored race / African, it is preferable to reproduce it brighter than the appropriate value. It is necessary to move to the (light source) position, irradiate the plain light with the highest brightness, and further irradiate it with the green color that is often lacking for African blacks.
In the present embodiment, the sky light, the Rembrandt light, the plain light, and the front light each use the same LED light 10, and the functions of the respective lighting devices can be moved by moving the installation position. However, different LED lights 10 may be used in advance.

  In step S103, modeling and pre-photographing are executed prior to actual photographing in step S106 described later. Modeling is preparation for focusing, object pose, adjustment of color rendering properties of the illumination device, etc., and the light emission amount of the LED light source 11 at this time is suppressed for modeling, that is, the first light emission state. ing.

  In the pre-photographing, a subject is photographed using the camera 3 or a pre-photographing camera (not shown) under the same conditions as the actual photographing, and an image obtained by performing simple image processing on the photographed image is displayed on the operation display unit 23. While displaying, the arrangement of the LED light 10, the light emission amount adjustment of each color LED light source 11, and the photographing condition adjustment of the camera 3 are repeated. Accordingly, the LED light 10 emits the second light emission with the light emission amount determined in step S102 or the adjusted light emission amount in synchronism with the photographing operation executed by the camera 3 or a pre-photographing camera (not shown) in the pre-photographing. In this state, light is emitted in a short time with high illuminance, that is, strobe light is emitted.

  In the pre-photographing, for example, the brightness and hue of the image can be arbitrarily adjusted by the control unit 21 for the image photographed by the camera 3 or a pre-photographing camera (not shown). Adjust the light emission amount of each color LED light source 11 determined in step S102 so that the brightest part on the histogram of the image signal value is pure white, the darkest part is pure black, and the halftone is averaged. It is.

  The adjustment executed in the pre-photographing is performed by an adjustment screen displayed on the operation display unit 23 of the control device 2 as shown in FIG.

  On the adjustment screen 50, a pre-photographed image (hereinafter referred to as an original photograph) 501 and an image (hereinafter referred to as a corrected photograph) 502 whose brightness and color are adjusted are displayed. In general operation, after selecting the automatic adjustment button 503 and performing the neutral correction as described above, the brightness adjustment unit 504 and the hue adjustment are performed while viewing the corrected photo 502 and the histogram 506 of the image signal value in the corrected photo. The brightness and hue are finely adjusted by operating the unit 505.

  The brightness adjustment unit 504 can input the brightness adjustment amount by Ev (Exposure Value). The hue adjustment unit 505 selects a desired adjustment point 505a on the coordinates of the red, blue, and green color spaces. The histogram 506 displays any color selected from red, blue, and green.

  When the fine adjustment is completed, the selected adjustment value is stored in the storage unit 22 by pressing the determination button 507, and the LED light 10 is adjusted with the light emission amount adjusted with the stored adjustment value in the subsequent actual shooting. Emits light.

  When the modeling and pre-photographing in step S103 are executed and the adjustment is completed (step S104; YES), the processing of the real shooting after step S106 is executed.

  In step S105, it waits for the imaging signal output synchronizing with the shutter operation | movement of the camera 3 to be input into the interface 24, and if a imaging signal is input (step S105; YES), the process of step S106 will be performed. .

  In step S106, in synchronization with the photographing operation executed by the camera 3, the LED light 10 emits light in a short period of high illuminance in the second light emitting state, that is, strobe light emission with the light emission amount determined in step S103. End the operation. In addition, when shooting a moving image with the camera 3, the LED light 10 emits high illuminance as the second light emitting state while the camera 3 is shooting.

  The details of the control of the light emission state in the LED light 10 executed in step S106 of FIG. 3 will be described using the white LED light source 11W as an example. In the present embodiment, the light emission amount of the white LED light source 11W is controlled in six stages, but the voltage, current, and pulse width of the power supplied to the white LED light source 11W are controlled according to the light emission amount. An example of the amount of light emission and the voltage, current, and pulse width of the supplied power is shown in Table 2 below. The pulse width is indicated by a duty ratio with a maximum value of 100.

  In Table 2, the light emission amount 1 is the light emission amount at the time of modeling, but at this time, the light emission amount is preferably such that the subject H does not squint due to the glare and the glow is appropriately contracted. Moreover, it is preferable that the white LED light source 11W and the power supply device 4 are supplied with electric power that does not cause an overheating state. Specifically, the light emission amount during modeling is preferably 50% or less of the light emission amount during shooting. More preferably, it is around 50% or around 25% of the light emission amount at the time of photographing. If the light emission amount at the time of modeling is set to be close to 50% or 25% of the light emission amount at the time of shooting, the exposure correction control that operates with the camera 3 can be set to “−1 Ev” or “−2 Ev”. Using the automatic exposure control, you can shoot as if it were a real shoot with light emission during modeling.

  On the other hand, the light emission amount 5 is the maximum light emission of the white LED light source 11W. At this time, the maximum voltage and current are continuously supplied for a predetermined time within a range in which the white LED light source 11W is not destroyed. In order to supply such power stably without giving a load to the circuit of the power supply device, the power supply device 4 has a built-in capacitor, and the power stored in the capacitor is a white LED during a predetermined time. The light source 11W is supplied.

  The shooting operation in the camera 3 and the control of the power supplied to the LED light 10 will be described with reference to FIG. FIG. 6 is a timing chart showing the operating state of the camera 3, the image sensor of the camera 3, and the LED light 10.

  In FIG. 6, the LED light 10 is lit even at the time of modeling, but the light emission amount is suppressed for modeling, that is, the first light emission state (t0). When a release button (not shown) of the camera 3 is pressed, a shooting signal is generated and output to the control device 2 (t1). Subsequently, charge is reset in the image pickup device of the camera 3, and then charge is accumulated. It is started (t2).

  The control device 2 that has received the photographing signal at time t1 strobes the LED light 10 with a predetermined light emission amount for a predetermined time after a predetermined time during which charge is accumulated in the imaging element and after the photographing signal is received. That is, in order to make it the 2nd light emission state, the power supply device 4 is controlled and electric power is supplied to the LED light 10 (t3-t4). The charge accumulation in the image sensor is completed (t5), and then signal processing (not shown) is executed in the camera 3.

  As described above, according to the present embodiment, modeling can be performed using the LED light 10 having the same color rendering property as the light source used at the time of photographing and having the same light source arrangement. It is possible to quickly set the focus and exposure balance, and illuminate the subject with light that is very similar to that at the time of shooting, so it is extremely efficient in determining exposure and reproducing the photographer's drawing intention. High-quality images can be taken in a short time.

  According to the present embodiment, since the LED light source 11 is driven with a pulsed drive current, the light emission amount can be controlled with high accuracy. In addition, since a direct current drive current is supplied to the LED light source 11 in the second light emission state, the color rendering property is high and a large light emission amount can be obtained.

  According to the present embodiment, since the current and voltage of the drive current supplied to the LED light source 11 are controlled, a wide range of light emission amounts can be controlled.

  According to the present embodiment, the control information previously associated with the shooting information input through the operation display unit 23 or the interface 24 is read from the storage unit 22, and the second control information is read based on the read control information. Since the light emission amount in the light emission state is controlled, it is possible to provide optimal lighting for various subjects in a short time.

  In addition, the detailed configuration and detailed operation of each configuration constituting the photographic system can be changed as appropriate without departing from the spirit of the present invention.

  It can be used for all photographing lighting devices.

It is the schematic diagram which showed an example of the photography system with which the illumination device for imaging | photography concerning this invention was applied. It is a front view of the LED light which comprises the illuminating device for imaging | photography which concerns on this invention. It is a flowchart which shows the process at the time of the imaging | photography operation | movement performed by the imaging | photography system shown in FIG. It is an example of the imaging condition input screen displayed on the operation display part of a control apparatus. It is an example of the adjustment screen displayed on the operation display part of a control apparatus. It is a timing chart which shows the operation state of a camera, the image pick-up element of this camera, and LED light.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Imaging | photography system 2 Control apparatus 3 Camera 4 Power supply device 10, 10a, 10b LED light 11, 11W, 11G, 11R, 11M LED light source 12 Board | substrate 21 Control part 22 Memory | storage part 23 Operation display part 24 Interface N Network

Claims (5)

An illumination device for photographing, wherein a light emitting diode light source, an input unit for inputting a photographing signal, and the light emitting diode light source emit light at an arbitrary light emission amount for a predetermined time after the photographing signal is input to the input unit. An illumination device for photographing, comprising: a light emission control unit that causes the illumination to occur. The imaging light source according to claim 1, wherein the light emitting diode light source is driven with a pulsed driving current, and the light emission control unit controls a pulse of the driving current supplied to the light emitting diode light source. Lighting device. 3. The light emitting diode light source according to claim 1, wherein the light emission control unit controls the light emitting diode light source so that in the first light emission state, the light emission amount is 50% or less of the second light emission state. 4. Lighting device for photography. 4. The photographing illumination device according to claim 1, wherein the light emission control unit controls at least one of a current and a voltage of a driving current supplied to the light emitting diode light source. 5. A shooting information input unit for inputting shooting information; and a control information storage unit for storing light emission state control information previously associated with the shooting information input by the shooting information input unit; 5. The photographing illumination device according to claim 1, wherein light emission in the second light emission state is controlled based on light emission state control information stored in the control information storage unit. .

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