JPWO2004054239A1 - Electronic device and photographing method using the electronic device - Google Patents

Electronic device and photographing method using the electronic device Download PDF

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Publication number
JPWO2004054239A1
JPWO2004054239A1 JP2004558446A JP2004558446A JPWO2004054239A1 JP WO2004054239 A1 JPWO2004054239 A1 JP WO2004054239A1 JP 2004558446 A JP2004558446 A JP 2004558446A JP 2004558446 A JP2004558446 A JP 2004558446A JP WO2004054239 A1 JPWO2004054239 A1 JP WO2004054239A1
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Prior art keywords
display
imaging
unit
luminance
electronic
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JP2004558446A
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JP4098305B2 (en
Inventor
和成 上田
和成 上田
厚志 片桐
厚志 片桐
洋嗣 松浦
洋嗣 松浦
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松下電器産業株式会社
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Priority to JP2002377208 priority
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Priority to PCT/JP2003/015744 priority patent/WO2004054239A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/225Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/235Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor
    • H04N5/2354Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor by influencing the scene brightness using illuminating means
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/225Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/2256Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles provided with illuminating means
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position

Abstract

An object of the present invention is to provide an electronic device including an imaging unit capable of realizing a flash function without mounting a new component, and a photographing method using the electronic device. At the start of photographing, a flash-only screen is displayed at a luminance level of luminance 1 on the rear display unit (109). In this state, a preview operation for continuously displaying the image data from the rear imaging unit (111) on the display unit (108) is performed. When the shutter key (116) is pressed during the preview operation, the display operation of the rear display unit (109) is set to a luminance 2 brighter than the luminance 1, and a flash operation is performed. A subject is imaged by the rear imaging unit (111) in accordance with the timing of the flash operation, and image data of the subject imaged from the rear imaging unit (111) is captured and stored in the memory. After capturing the image data, the display luminance of the rear display unit (109) is returned from luminance 2 to luminance 1, and the flash operation is finished.

Description

  The present invention relates to an electronic device capable of realizing a flash function and a photographing method using the electronic device.

In recent years, mobile communication terminals such as mobile phones and PHS have been improved in performance and functionality, and various types of communication terminals have been sold. Among them, a camera-equipped mobile phone is overwhelmingly supported by users today. In the future, it is desired that this camera-equipped mobile phone be improved to the same image quality as a digital camera.
In order to improve the image quality, it is necessary to improve the performance of the solid-state imaging device (CCD sensor, CMOS sensor, etc.) such as sensitivity and definition. A flash function can be considered for this purpose. For this reason, mobile phones with built-in flash devices (see, for example, Patent Document 1) and flash device devices as peripheral devices for mobile phones have been devised. In particular, recently, a cellular phone having a flash function by incorporating a high-brightness LED has been considered.
Also, some conventional mobile phone devices and fixed-line phone devices flash a lamp as a call upon arrival, or provide a flash device such as a discharge lamp to emit light. Some mobile phone devices or the like are not provided with a built-in lamp or flash device, but are provided exclusively outside.
As a conventional example in which visible light blinks at the time of an incoming call, it is separate from the fixed telephone and includes a flash lamp. When an incoming call is received, the flash lamp is emitted in synchronization with the calling signal. There exists a thing (for example, refer patent document 2). Also, a liquid crystal display with a backlight is provided, and when there is an incoming call, the backlight of the liquid crystal display flashes and emits light (for example, see Patent Document 3), which is separate from the mobile phone device, and is a light emitting element And when the mobile phone device receives an incoming call, the light emitting element emits light (for example, see Patent Document 4).
In addition, as a flash device that is used by being mounted on a camera or used in a camera, a second light emission that emits monochromatic light of two different colors, red and blue, separately from a first light emission unit that emits a flash. And the first light emitting unit emits either one or both of red and blue continuously for a predetermined period of time to correct the flash color temperature to a set color temperature ( For example, see Patent Document 5.
(Patent Document 1) Japanese Patent Application Laid-Open No. 2001-320622 (Patent Document 2) Japanese Utility Model Application Laid-Open No. 7-14739 (Patent Document 3) Japanese Patent Application Laid-Open No. 3-280778 (Patent Document 4) Utility Model Registration No. 3082867 (Patent Document 3) Document 5) Japanese Patent Laid-Open No. 10-206942 However, in the mobile phone equipped with the conventional camera described above, a flash device and an LED for realizing a flash function are newly provided for improving the image quality in a low illumination environment. Because it is necessary, there were the following problems. That is, when a component such as a flash device or an LED is built in a mobile phone, there is a problem that the mounting area and thickness are increased, so that the size cannot be reduced. Further, since a large noise is generated when performing flash emission, there is a problem in that other components are adversely affected. Furthermore, since it is necessary to newly mount a new part, that is, a part such as a flash device or an LED, there is a problem that the cost increases accordingly.
The present invention has been made in view of the above-described conventional problems, and it is an object of the present invention to provide an electronic device capable of realizing a flash function without mounting a new component and a photographing method using the electronic device. It is said.

In order to achieve the above object, an electronic apparatus according to the present invention is an electronic apparatus including a display unit and an imaging unit, wherein the display surface of the display unit and the imaging direction of the imaging unit are set in the same direction, Display control means is provided for switching and controlling the display brightness of the display means at at least two levels, and for controlling the display means to display a predetermined image at the highest brightness level at the time of image pickup by the image pickup means. Therefore, the flash function can be realized without mounting new components. As a result, it is possible to eliminate an increase in mounting area and thickness due to the addition of new components, generation of noise during flash emission, and an increase in cost.
Further, in the electronic device according to the present invention, the display control means changes the display brightness of the display means before and after the moment when the imaging means captures an image, and the display brightness of the display means is increased before the moment of imaging. The brightness level is switched to the highest brightness level, and the display brightness of the display means is switched to a brightness level lower than the highest brightness level after the moment of imaging. In this way, since the luminance is increased only at the moment of shooting, power consumption can be reduced.
In the electronic apparatus according to the present invention, the predetermined image is an image obtained by emitting all of the pixels constituting the display unit in white. By making all the pixels emit white light, the brightness necessary for flash emission can be obtained most efficiently.
In the electronic apparatus according to the present invention, it is preferable that the predetermined image is an image selected in advance before imaging by the imaging unit.
In the electronic device according to the present invention, the display means includes a first display means provided on the front side of the electronic device, and a second display means provided on the back side of the electronic device. The image pickup means includes a first image pickup means provided on the front side of the electronic device and a second image pickup means provided on the back side of the electronic device, and the display control means When photographing using the second imaging means, the second display means displays the predetermined image at the highest luminance level, and the first display means at the arbitrary luminance level. When displaying an image from the second imaging unit and shooting using the first imaging unit, the display control unit causes the first display unit to display the predetermined image at the highest luminance level. In addition, the second display means can be arbitrarily set at any brightness level. It is desirable to display an image.
Further, an imaging method according to the present invention is an imaging method using an electronic device including a display unit and an imaging unit, wherein a display surface of the display unit and an imaging direction of the imaging unit are set in the same direction, The display brightness of the display means is switched and controlled at at least two levels, and at the time of imaging by the imaging means, the display means displays a predetermined image at the highest brightness level.
Furthermore, the imaging method according to the present invention switches the display luminance of the display means to the highest luminance level before the moment of imaging by the imaging means, and after the moment of imaging by the imaging means, The display brightness is switched to a brightness level lower than the highest brightness level.
The electronic apparatus according to the present invention includes: a light emitting unit that emits light when energized; a lighting control unit that controls lighting of the light emitting unit; and a lighting instruction unit that instructs the lighting control unit to turn on the light emitting unit. And the lighting control means turns on the light emitting means at a first luminance for the first lighting application, and when the lighting instruction means gives a lighting instruction, Control for lighting at the second luminance is performed for lighting use.
According to this configuration, it is possible to light up one light emitting means with a plurality of different luminances and use it for various lighting applications to obtain an appropriate light emission mode for each application. For example, in an electronic device provided with an imaging means, the first lighting application is an incoming call notification for a telephone or the like, and the second luminance in the second lighting application is higher than the first luminance in the first lighting application. Further, by making the brightness high, it becomes possible to use a light emitting means such as an LED as a flash (photographing illumination) at the time of photographing by the imaging means. In this case, there is no need to provide a dedicated light emitting means for improving image quality using a flash in a low illuminance environment, and an increase in mounting area and thickness due to the addition of new members, an increase in cost, etc. can be suppressed, and the size of the device can be reduced. Reduction, cost reduction, and noise reduction.
Moreover, as one aspect of the present invention, the lighting control means turns on the light emitting means for notification of an incoming call as the first lighting application when there is an incoming call by the communication means.
According to this configuration, by using the light emitting means for incoming call notification, incoming calls such as telephone calls can be notified visually.
Moreover, as one aspect of the present invention, the lighting control means turns on the light emitting means for notifying a time alarm as the first lighting application when a predetermined alarm setting time is reached.
According to this configuration, the time alarm can be visually notified by using the light emitting means for time alarm notification.
Further, as one aspect of the present invention, the lighting control unit causes the light emitting unit to emit light for photographing illumination of the imaging unit as the second lighting application.
According to this configuration, by using the light emitting means for photographing illumination as the second lighting application, one light emitting means can be used for incoming call notification, time alarm notification, and the like, and flash light emission is performed using the light emitting means as photographing illumination. be able to.
Further, as one aspect of the present invention, the lighting control unit causes the light emitting unit to emit light at a second luminance before photographing by the imaging unit when performing imaging illumination of the imaging unit as the second lighting application. At the same time, the light emitting means is caused to emit light at a third luminance brighter than the second luminance at the time of photographing by the imaging means.
According to this configuration, when the light emitting means is used as photographing illumination, for example, pre-light emission before photographing and flash light emission at photographing can be realized by one light emitting means, and a photographed image with good image quality can be obtained. Become.

FIG. 1 is a block diagram showing a configuration of a mobile phone device according to an embodiment of the present invention.
FIG. 2 is an external view showing a mobile phone device according to an embodiment of the present invention.
FIG. 3 is an explanatory diagram showing each display content and each display brightness of the display unit and the rear display unit at the time of preview and shooting when imaging is performed using the rear imaging unit.
FIG. 4 is an explanatory diagram showing display contents and display luminances of the display unit and the back display unit at the time of preview and shooting when imaging is performed using the imaging unit.
FIG. 5 is a flowchart illustrating an imaging processing procedure when imaging is performed using the rear imaging unit.
FIG. 6 is a flowchart illustrating an imaging processing procedure when imaging is performed using the imaging unit.
FIG. 7 is a block diagram showing a configuration of a mobile phone device according to an embodiment of the present invention.
FIG. 8 is a perspective view showing an external configuration of a mobile phone device according to an embodiment of the present invention, (a) is a diagram showing the front side, (b) is a diagram showing the back side,
FIG. 9 is a flowchart showing a schematic procedure of a photographing operation when the second imaging unit is used in the mobile phone device according to the embodiment of the present invention.
FIG. 10 is an operation explanatory diagram showing the luminance state of the LED unit at the time of preview and imaging of the mobile phone device according to the embodiment of the present invention.
FIG. 11 is an operation explanatory diagram illustrating a change in luminance of the LED unit of the mobile phone device according to the embodiment of the present invention.
FIG. 12 is a perspective view showing an external configuration of a first application example of the mobile phone device according to the embodiment of the present invention.
FIG. 13 is a perspective view showing an external configuration of a second application example of the mobile phone device according to the embodiment of the present invention.
FIG. 14 is a perspective view showing an external configuration of a third application example of the mobile phone device according to the embodiment of the present invention.
In the figure, 101 is a mobile phone, 102 is a wireless transmission / reception unit, 103 is a transmission / reception unit, 104 is a handset, 105 is an operation unit, 106 is a memory, 107 is a control unit, 108 is a display unit, 109 is Rear display unit, 110 is an imaging unit, 111 is a rear imaging unit, 112 is an antenna, 201 is an antenna, 202 is a wireless transmission / reception unit, 203 is a handset, 204 is a transmission / reception unit, 205 is an operation unit, 206 is a storage unit, 207 is an LED unit, 208 is a first display unit, 209 is a second display unit, 210 is a first imaging unit, 211 is a second imaging unit, 212 is a light source unit for a first display unit, and 213 is for a second display unit. A light source unit, 214 is a control unit, and 215 is a reflector.

(First embodiment)
Embodiments of an electronic device according to the present invention and a photographing method using the electronic device will be described with reference to the drawings. In this embodiment, a camera-equipped mobile phone (hereinafter simply referred to as “mobile phone”) will be described as an example of the electronic apparatus according to the present invention. However, as long as the electronic device includes a display unit, the present invention may be applied not only to a mobile phone but also to a PDA, a notebook PC, a digital camera, or the like.
FIG. 1 is a block diagram showing a configuration of a mobile phone according to an embodiment of the present invention. The cellular phone 101 according to the present embodiment includes an antenna 112, a silent transmission / reception unit 102, a transmission / reception unit 3, a handset 104, an operation unit 105, a memory 106, and a control corresponding to the display control means in the claims. 107, a display unit 108 corresponding to the display unit and the first display unit, a rear display unit 109 corresponding to the display unit and the second display unit, and an imaging unit corresponding to the imaging unit and the first imaging unit 110 and a rear imaging unit 111 corresponding to the imaging unit and the second imaging unit.
When the user operates the operation unit 105 to turn on the power of the mobile phone 101, the control unit 107 detects that the power is turned on and puts each unit into an operable state. Then, when the operation unit 105 is operated to input the other party's telephone number, or the operation unit 105 is operated to call the other party's telephone number registered in the memory 106 and the call key is pressed, the silent transmission / reception unit Radio transmission for calling is performed from the antenna 112 to the base station via 102. When the other party responds, the control unit 107 receives the response signal transmitted from the base station by the silent transmission / reception unit 102 via the antenna 112, and makes the transmission / reception unit 3 operable. As a result, the user of the mobile phone 101 can make a call with the other party via the handset 104.
The display unit 108 and the back display unit 109 display a message to that effect when the mobile phone 101 is turned on, display the phone number when the phone number is entered or called, and when the other party answers Display to that effect. In addition, the control unit 107 controls the display unit 108 and the rear display unit 109 at the time of photographing the subject, and when imaging is performed by the user operating the operation unit 105, the captured image data is transferred to the memory 106. And save.
FIG. 2 is an external view showing the mobile phone 101 of the present embodiment. As shown in the figure, the cellular phone 101 of the present embodiment is a foldable type in which an upper housing 1a and a lower housing 1b can be opened and closed via a hinge portion 1c. As shown in FIG. 2A, the display unit 108 and the imaging unit 110 are arranged on the same surface on the inner surface (front surface) of the upper housing 1a, and the outer surface (rear surface) of the upper housing 1a. ) Is provided with an operation unit 105 including various keys such as a power key 115 and a shutter key 116. Further, as shown in FIG. 2B, the rear display unit 109 and the rear imaging unit 110 are arranged on the same surface on the rear surface of the upper housing 1a. As described above, the mobile phone 101 of this embodiment is equipped with two image pickup units.
When the subject is imaged, the display content and brightness of the display unit 108 and the rear display unit 109 differ depending on the imaging unit used. FIG. 3 is an explanatory diagram showing display contents and display brightness of the display unit 108 and the back display unit 109 at the time of preview and shooting when imaging is performed using the back imaging unit 111. FIG. 4 is an explanatory diagram showing display contents and display luminances of the display unit 108 and the back display unit 109 at the time of preview and shooting when imaging is performed using the imaging unit 110.
As shown in FIG. 3, at the time of preview when imaging using the rear imaging unit 111, an image from the rear imaging unit 111 is displayed on the display unit 108 with an arbitrary luminance, and a luminance of 1 is displayed on the rear display unit 109. Will display a flash-only image. Further, during imaging using the rear imaging unit 111, an image from the rear imaging unit 111 is displayed on the display unit 108 with an arbitrary luminance, and a flash-only image is displayed on the rear display unit 109 with a luminance of 2. It should be noted that the luminance level of luminance 1 is higher than luminance 1 and luminance 2, and the display of the flash-only image at luminance 2 plays the role of flash. In addition, the flash dedicated image displayed on the rear display unit 109 during preview and the flash dedicated image displayed on the rear display unit 109 during shooting need not be the same, and may be different images.
On the other hand, as shown in FIG. 4, at the time of preview when imaging is performed using the imaging unit 110, an image from the imaging unit 110 is displayed on the display unit 108 with a luminance of 3 and the rear display unit 109 is displayed with a luminance of 4 A flash-only image is displayed. Further, at the time of imaging using the imaging unit 110, the display unit 108 performs arbitrary display at an arbitrary luminance, and the rear display unit 109 also performs arbitrary display at an arbitrary luminance. It should be noted that the luminance level is higher in luminance 3 than luminance 3 and luminance 4, and the display of the flash-only image at luminance 4 plays the role of flash.
The flash-dedicated image may be displayed by reading image data registered in the memory 106 in advance, or may be a display in which all pixels are simply white. By making all the pixels emit white light, the brightness necessary for flash emission can be obtained most efficiently. However, if red, blue, and green are used, special shooting different from normal can be performed. For example, an interesting effect can be given to a captured image by causing all pixels to emit red light.
Also, one type of flash-dedicated image may be used, but a plurality of types may be prepared. For example, a plurality of types of flash-dedicated images may be registered in the memory in advance, and a desired flash-dedicated image may be selected before starting shooting by a predetermined key operation by the operation unit 105.
Next, an operation (flash photographing method) of the mobile phone 101 when imaging is performed using the mobile phone 101 of the present embodiment will be described with reference to FIGS. 5 and 6.
FIG. 5 is a flowchart illustrating an imaging processing procedure when imaging is performed using the rear imaging unit 111. A program for executing the imaging processing procedure shown in the figure is stored in a memory (not shown) in the control unit 107. For example, when the user enters a shooting preparation stage by performing a predetermined key operation, the control unit A CPU (not shown) in 107 executes the program.
When imaging using the rear imaging unit 111 (rear imaging), the display unit 108 is used instead of the viewfinder, and the rear display unit 109 is used as a flash light source. First, at the time of previewing in the shooting preparation stage, a preview screen is displayed on the rear display unit 109 at a luminance level of luminance 1, and the image from the rear imaging unit 111 is continuously displayed on the display unit 108 at an arbitrary luminance. An operation is performed (step S11). In the preview operation in step S11, a black screen having a luminance value of 0 as luminance 1 may be displayed on the rear display unit 109. However, in a low illuminance environment, the preview screen becomes dark and the subject becomes dark. In the case where it is difficult to see, it is used instead of the light that illuminates the subject. Therefore, it is preferable to turn on the rear display unit 109 with luminance 1 having a certain level of brightness.
Next, it is determined whether the shutter key 116 is pressed during the preview operation (step S12). If the shutter key 116 is not pressed, the process returns to step S11 to continue the preview operation. If the shutter key 116 is pressed (that is, during imaging), the display brightness of the rear display unit 109 is set to a brightness 2 brighter than the brightness 1. The flash operation is performed by setting, and the rear imaging unit 111 performs imaging in accordance with this timing (step S13). Note that the luminance 2 is preset to a luminance corresponding to the flash light. Next, the image data of the image captured by the rear imaging unit 111 is captured and stored in the memory 106 (step S14). Note that the display luminance of the display unit 108 at the time of image capturing in step S13 may be any luminance commensurate with the preview display.
After capturing the image data, the display brightness of the rear display unit 109 is returned from the brightness 2 to the brightness 1, and a flash-only image is displayed (step S15). Thereafter, it is determined whether a predetermined key operation has been performed on the operation unit 105 and the photographing has been completed (step S16). If it is not the end of shooting, the process returns to step S11, and if it is the end of shooting, this process ends.
FIG. 6 is a flowchart illustrating an imaging processing procedure when imaging is performed using the imaging unit 110. A program for executing the imaging processing procedure shown in the figure is stored in a memory (not shown) in the control unit 107. For example, when the user enters a shooting preparation stage by performing a predetermined key operation, the control unit A CPU (not shown) in 107 executes the program.
When imaging using the imaging unit 110 (frontal imaging), the display unit 108 is used instead of the finder and also used as a flash light source. In this case, since the rear display unit 109 is not used for a flash light source, it displays an arbitrary image with an arbitrary luminance during preview and during shooting. First, at the time of previewing in the shooting preparation stage, a preview operation for continuously displaying images from the imaging unit 110 at a luminance level of 3 on the display unit 108 is performed (step S21).
Next, it is determined whether the shutter key 116 is pressed during the preview operation (step S22). If the shutter key 116 is not pressed, the process returns to step S21 to continue the preview operation. If the shutter key 116 is pressed (that is, during imaging), the display brightness of the display unit 108 is set to brightness 4 that is brighter than brightness 3. At the same time, the display screen is switched to the flash-dedicated image to perform the flash operation, and the imaging unit 110 performs imaging in accordance with this timing (step S23). Note that the luminance 4 is preset to a luminance corresponding to the flash light. Next, the image data of the image captured by the image capturing unit 110 is captured and stored in the memory 106 (step S24).
After capturing the image data, the display luminance of the display unit 108 is returned from luminance 4 to luminance 3, and the display screen is switched to the image from the imaging unit 110 (step S25). Thereafter, it is determined whether or not a predetermined key operation has been performed on the operation unit 105 to end the photographing (step S26). If it is not the end of shooting, the process returns to step S21, and if it is the end of shooting, this process ends.
As described above, the mobile phone 101 according to the present embodiment uses light emitted from the display unit 108 or the back display unit 109 as a flash light source when taking an image. As a result, the flash function can be realized without newly mounting components such as a flash device and LEDs. As a result, problems such as an increase in mounting area and thickness due to the addition of new components, generation of noise during flash emission, and increase in cost can be solved. Since the display brightness of the display unit 108 or the rear display unit 109 used as a flash light source is increased only at the moment of shooting (during shooting), power consumption can be reduced.
Note that the mobile phone 101 of the present embodiment has two imaging units and two display units, but may be three or more, or may be different numbers. Further, the luminance change may be stepwise or continuous. Further, the luminance 2 of the rear display unit 109 and the luminance 4 of the display unit 108 at the time of shooting may be arbitrarily set by the user within a predetermined range corresponding to the flash light. Further, examples of the display unit 108 and the back display unit 109 include a liquid crystal display device with a backlight, a plasma display, an organic EL, an FED (field emission display), and a light emitting diode array.
(Second Embodiment)
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the present embodiment, a configuration example of an electronic device will be described using an example applied to a mobile phone device. FIG. 7 is a block diagram showing a configuration of a mobile phone device according to an embodiment of the present invention. FIG. 8 is a perspective view showing an external configuration of the mobile phone device according to the present embodiment, where (a) shows the front side and (b) shows the back side.
In FIG. 7, the mobile phone device of the present embodiment includes an antenna 201, a wireless transmission / reception unit 202 as a communication unit that transmits and receives wireless signals, a handset 203 having a microphone and a speaker, a transmission / reception unit 204, An operation unit 205 including a plurality of key buttons for operating the apparatus, a storage unit 206 including a storage element such as a semiconductor memory, and an LED unit 207 used for notification of the state of the apparatus main body such as an incoming call or a charging state. I have. In addition, the mobile phone device includes a first display unit 208 and a second display unit 209 made up of a liquid crystal display element (LCD) or the like, and a CCD (Charge Coupled Device) imaging element or a CMOS (Complementary Metal Oxide Semiconductor) imaging element or the like. A first imaging unit 210 and a second imaging unit 211 as a means, a first display light source unit 212, a second display light source unit 213, and a control unit 214 for controlling each unit constituting the apparatus. I have.
The transmitter / receiver unit 204 outputs the voice of the other party to the speaker of the transmitter / receiver 203, and transmits the voice of the user of the apparatus input to the microphone of the transmitter / receiver 203 to the control unit 214. The first display unit 208 and the second display unit 209 are used to display operation contents when various functions of the apparatus are executed.
Here, the first display unit 208 and the first imaging unit 210 are provided on the front side of the mobile phone device as shown in FIG. The second display unit 209 and the second imaging unit 211 are provided on the back side of the mobile phone device as shown in FIG. As shown in FIGS. 8A and 8B, the LED unit 207 is arranged at the upper end of the apparatus main body so that the light emitted from either surface can be seen over both the front side and the back side. It is installed.
The LED unit 207 corresponds to the light emitting means described in the claims, and is configured to include, for example, three colors of LEDs (light emitting diodes) of red, green, and blue, and using these LEDs of different colors, Various colors such as white are realized, and various notification patterns are realized by only one LED unit 207 by changing the lighting pattern and the luminance. For example, as described above, the state of the apparatus main body such as an incoming call or a charging state is notified. In addition, it has a function of notifying the activation state indicating that the power is turned on, and a communication function for exchanging data with other mobile phone devices using light such as infrared rays. Further, the LED unit 207 has a flash function that emits white light with high luminance as photographing illumination when a shutter button as a lighting instruction unit in the operation unit 205 is operated.
The control unit 214 corresponds to the lighting control means described in the claims, and controls the lighting pattern of the LED unit 207 such as the lighting pattern and luminance. Note that the LED unit 207 is shared with the second display unit light source unit 213 of the second display unit 209, and display variations can be increased with respect to the second display unit 209 with a small display color such as a monochrome display element. It is also possible to divert.
The light source unit 212 for the first display unit is composed of an LED or the like, and constitutes a so-called backlight or front light used to make the first display unit 208 easy to see in a dark environment. Similarly, the light source unit 213 for the second display unit includes an LED or the like, and constitutes a so-called backlight or front light used to make the second display unit 209 easy to see in a dark environment.
Next, the operation of the cellular phone device of the present embodiment configured as described above will be described.
When the user performs an operation of turning on the power using the operation unit 205, the operation is detected by the control unit 214, and each unit of the apparatus is made operable. After the apparatus is ready for use, the user performs an operation of dialing the telephone number of the called party on the operation unit 205 or the called party's telephone stored in the storage unit 206 When an operation for calling a number is performed and the call key button is operated, the control unit 214 performs a call operation, and transmits a wireless signal for calling from the antenna 1 via the wireless transmission / reception unit 202.
A radio signal transmitted from the antenna 201 is received by a base station (not shown). When the base station receives the radio signal, the calling user makes a call to the other party for the purpose of the call. When the other party answers by this call, a wireless signal for this response is received by the wireless transmission / reception unit 202 via the antenna 201. As a result, the transmitter / receiver unit 204 can operate under the control of the control unit 214 and can communicate with the other party using the transmitter / receiver 203.
When the power is turned on, the first display unit 208 and the second display unit 209 display the power-on state by display control of the control unit 214. Further, when a telephone number is input or when a telephone number stored in the storage unit 206 is called, each telephone number is controlled by the control unit 214 to be displayed on the first display unit 208 or the second display unit 209. Is displayed. Further, when the other party answers, a message to that effect is displayed on the first display unit 208 or the second display unit 209.
Based on the control of the control unit 214, the LED unit 207 is lit to notify the incoming call together with the incoming call tone. In addition, the state of the device such as during a call, charging, and completion of charging is indicated by a light emitting state, and notification is made that the power is on even when the first display unit 208 and the second display unit 209 are off. .
In addition, the control unit 214 captures a captured image by controlling the first imaging unit 210 and the second imaging unit 211 when the subject is captured. At this time, when the shutter is released by the shooting instruction operation of the operation unit 205, the control unit 214 transfers the image data obtained by the first imaging unit 210 or the second imaging unit 211 to the storage unit 206 as imaging data. Transfer and save.
Here, a photographing operation when photographing using the second imaging unit 211 and a luminance state of the LED unit 207 in the photographing operation will be described. FIG. 9 is a flowchart showing a schematic procedure of the photographing operation when the second imaging unit 211 is used. FIG. 10 is an operation explanatory diagram showing the luminance state of the LED unit 207 at the time of preview and imaging.
In the present embodiment, when shooting using the second imaging unit 211, the captured image of the subject is displayed using the first display unit 208 or the second display unit 209 instead of the viewfinder, and the LED unit 207 is used as a flash light source. use. At the start of shooting, in order to show the operation state of the second image pickup unit 211, as shown in FIG. 10, the red LED of the LED unit 207 is turned on, and the image pickup unit is operating with a luminance of “2”. (Step S31), a preview operation for continuously displaying the image data obtained by the second imaging unit 211 on the first display unit 208 or the second display unit 209 is executed (step S32).
Here, instead of setting the brightness to “2”, it is possible to turn off the light having the same brightness “0” as when stopped (during non-operation). However, when shooting in a dark environment such as a room, the pupil of the human eye is open in a dark place, so that the red eye phenomenon may occur in which light is reflected on the fundus and appears red. In this embodiment, since it is also used as a light for illuminating the subject, the LED unit 207 is turned on with a brightness of “2” having a certain level of brightness, and functions as pre-emission during flash emission.
Next, it is determined whether or not the shutter button of the operation unit 205 has been pressed (step S33). If the shutter button is not pressed, the preview operation in step S32 is repeated. When the shutter button is pressed and the shutter is released, the control unit 214 turns on the green and blue LEDs of the LED unit 207 simultaneously. Thus, the brightness is set to a brightness “3” brighter than the brightness “2”, and the flash emission operation is executed (step S34). Then, the image data obtained by the second imaging unit 211 in accordance with the flash emission timing is stored in the storage unit 206 as imaging data (step S35). After capturing the imaging data, the green and blue LEDs of the LED unit 207 are turned off to return from the luminance “3” to the luminance “2”, and the flash emission ends (step S36).
FIG. 11 is an operation explanatory diagram illustrating a change in luminance of the LED unit 207. In FIG. 11, when squares arranged side by side next to red, green, and blue are defined as one unit time, a portion marked “ON” indicates that the LED is lit for one unit time.
When there is no incoming call such as a telephone call and the display is stopped, that is, as shown in FIG. 11A, the LED unit 207 has a luminance of “0”. When there is an incoming call in this state, as shown in (b), the green and blue LEDs are simultaneously turned on / off at a predetermined cycle (here, 6 unit time = 1 cycle) (first time) Light emission by lighting application). In the preview operation, only the red LED is always lit as shown in (c). When shooting is performed by pressing the shutter button in this state, as shown in (d), each of the green and blue LEDs is lit for one unit time, and a flash emission operation is performed (emission by the second lighting application).
As described above, according to the mobile phone device of the present embodiment, it is possible to realize a flash function without the need to newly add a flash device or a light emitting diode, increase in mounting area and thickness by adding new members, increase in cost, and Problems such as an increase in noise can be solved. In addition, since the luminance can be increased only at the moment of imaging, power consumption can be reduced.
In the above embodiment, the change in luminance of the LED unit 207 is realized by turning on LEDs of different colors. However, by using a plurality of LEDs of the same color or increasing the current value flowing through the LEDs, the luminance can be increased. You may make it implement | achieve the change of.
In the above embodiment, the first lighting application of the LED unit 207 is an incoming call notification for a telephone or the like, and the second lighting application is a flash emission. However, as the first lighting application or a new third lighting application. Also, it can be used for time alarm notification when a predetermined alarm set time comes, e-mail reception notification, or the like.
Further, in the above-described embodiment, an example of an operation in the case where an image is captured by the second imaging unit 211 has been described, but the first imaging unit 210 can be similarly realized.
Further, in the above-described embodiment, a configuration example in which two imaging units (first imaging unit 210 and second imaging unit 211) and two display units (first display unit 208 and second display unit 209) are mounted. However, regardless of the number of imaging units and display units, the imaging operation flow, the display content of each display unit at the time of imaging, and the luminance can be considered similarly. For this reason, there is no difference from one embodiment of the present invention.
In the above embodiment, the flash function is realized by the light emission of the LED unit 207. However, the flash function can be realized by the light source unit 212 for the first display unit or the light source unit 213 for the second display unit. That is, when shooting with the first imaging unit 210 on the front side, the luminance of the light source unit 212 for the first display unit is increased to emit flash light, and when shooting with the second imaging unit 211 on the back side, What is necessary is just to raise the brightness | luminance of the light source part 213 and to carry out flash light emission.
In the above embodiment, the LED brightness control is applied to the mobile phone device. However, in addition to electronic devices such as a PDA (personal digital assistant) with a camera, a personal computer (so-called notebook personal computer) is used. Is also applicable.
Next, an application example of the mobile phone device according to the present embodiment will be described.
FIG. 12 is a perspective view showing an external configuration of a first application example of the mobile phone device according to the present embodiment. In the first application example, the LED unit 12 is arranged so that it can slide back and forth (perpendicular to the imaging surface of the imaging unit) with respect to the apparatus main body. With this configuration, the illuminance during flash emission can be increased.
FIG. 13 is a perspective view showing an external configuration of a second application example of the mobile phone device according to the present embodiment. In the second application example, the LED unit 12 is arranged so that it can slide up and down (in a direction parallel to the imaging surface of the imaging unit) with respect to the apparatus main body. With this configuration, the illuminance during flash emission can be increased as in the first application example.
FIG. 14 is a perspective view showing an external configuration of a third application example of the mobile phone device according to the present embodiment. In the third application example, a reflective material 215 is provided around the LED unit 12. The reflector 215 is arranged at an angle so that light spreads forward with respect to the apparatus main body (forward direction with respect to the imaging surface of the imaging unit). A similar reflector is provided on the back side of the apparatus main body. With this configuration, the illuminance at the time of flash emission can be increased as in the first and second application examples.
The position where the LED unit 12 is disposed is not limited to the positions shown in FIGS. 8 and 12 to 14, and may be arbitrarily provided according to the device configuration. For example, LED units may be provided as appropriate, such as the front part, rear part, both front part and rear part of the device body, side parts, the vicinity of the casing corners, the hinge part or the vicinity of the hinge part, and the end part on the operation part side. it can.
According to this embodiment mentioned above, it can be used for a plurality of uses by lighting one light emitting means composed of an LED or the like with different brightness for each use. For example, the first lighting use is an incoming call notification. Then, the second luminance for the second lighting application is higher than the first luminance for the first lighting application, so that it can be used as a flash during camera shooting. This eliminates the need to provide dedicated light emitting means for improving image quality in low-light environments, solves the problem of increased mounting area and thickness due to the addition of new members, and increases material costs and costs. It is possible to solve the problem that noise increases due to increase or increase in light emitting means. Therefore, in the present embodiment, in an electronic apparatus equipped with an imaging unit, it is possible to achieve downsizing, cost reduction, and noise reduction while mounting a flash function to improve image quality in a low illumination environment. .
In addition, by using the first lighting application of the light emitting means as an incoming call notification, the user can visually recognize an incoming call such as a telephone call. Moreover, the user can visually recognize the time alarm of the set time by using the first lighting application of the light emitting means as the time alarm notification. In addition, by using the second lighting application of the light emitting means as photographing illumination, one light emitting means can be used as incoming notification or time alarm notification, and can be used as photographing illumination.
Although the present invention has been described in detail and with reference to specific embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention.
This application is filed in Japanese Patent Application No. 10 filed on Dec. 12, 2002. No. 2002-360843, Japanese Patent Application No. Based on 2002-377208, the contents of which are incorporated herein by reference.

  As described above, according to the electronic device and the photographing method using the electronic device according to the present invention, it is possible to provide an electronic device that realizes a flash function without mounting a new component. As a result, it is possible to eliminate an increase in mounting area and thickness due to the addition of new components, generation of noise during flash emission, and increase in cost.

[Document Name] Description [Technical Field]
[0001]
The present invention relates to an electronic device capable of realizing a flash function and a photographing method using the electronic device.
[Background]
[0002]
In recent years, mobile communication terminals such as mobile phones and PHS have been improved in performance and functionality, and various types of communication terminals have been sold. Among them, a camera-equipped mobile phone is overwhelmingly supported by users today. In the future, it is desired that this camera-equipped mobile phone be improved to the same image quality as a digital camera.
[0003]
In order to improve the image quality, it is necessary to improve the performance of the solid-state imaging device (CCD sensor, CMOS sensor, etc.) such as sensitivity and definition. A flash function can be considered for this purpose. For this reason, mobile phones with built-in flash devices (see, for example, Patent Document 1) and flash device devices as peripheral devices for mobile phones have been devised. In particular, recently, a cellular phone having a flash function by incorporating a high-brightness LED has been considered.
[0004]
Also, some conventional mobile phone devices and fixed-line phone devices flash a lamp as a call upon arrival, or provide a flash device such as a discharge lamp to emit light. Some mobile phone devices or the like are not provided with a built-in lamp or flash device, but are provided exclusively outside.
[0005]
As a conventional example in which visible light blinks at the time of an incoming call, it is separate from the fixed telephone and includes a flash lamp. When an incoming call is received, the flash lamp is emitted in synchronization with the calling signal. There exists a thing (for example, refer patent document 2). Also, a liquid crystal display with a backlight is provided, and when there is an incoming call, the backlight of the liquid crystal display flashes and emits light (for example, see Patent Document 3), which is separate from the mobile phone device, and is a light emitting element And when the mobile phone device receives an incoming call, the light emitting element emits light (for example, see Patent Document 4).
[0006]
In addition, as a flash device that is used by being mounted on a camera or used in a camera, a second light emission that emits monochromatic light of two different colors, red and blue, separately from a first light emission unit that emits a flash. And the first light emitting unit emits either one or both of red and blue continuously for a predetermined period of time to correct the flash color temperature to a set color temperature ( For example, see Patent Document 5.
[Patent Document 1] Japanese Patent Application Laid-Open No. 2001-320622 [Patent Document 2] Japanese Utility Model Application Laid-Open No. 7-14739 [Patent Document 3] Japanese Patent Application Laid-Open No. 3-280778 [Patent Document 4] Japanese Utility Model Registration No. 3028867 [Patent Document 3] [Patent Document 5] Japanese Patent Laid-Open No. 10-206942 [Disclosure of the Invention]
[Problems to be solved by the invention]
[0007]
However, since the mobile phone equipped with the conventional camera described above requires a flash device and an LED for realizing a flash function in order to improve the image quality in a low illumination environment, the following problems are raised. there were. That is, when a component such as a flash device or an LED is built in a mobile phone, there is a problem that the mounting area and thickness are increased, so that the size cannot be reduced. Further, since a large noise is generated when performing flash emission, there is a problem in that other components are adversely affected. Furthermore, since it is necessary to newly mount a new part, that is, a part such as a flash device or an LED, there is a problem that the cost increases accordingly. [0008]
The present invention has been made in view of the above-described conventional problems, and it is an object of the present invention to provide an electronic device capable of realizing a flash function without mounting a new component and a photographing method using the electronic device. It is said.
[Means for Solving the Problems]
[0008]
In order to achieve the above object, an electronic apparatus according to the present invention is an electronic apparatus including a display unit and an imaging unit, wherein the display surface of the display unit and the imaging direction of the imaging unit are set in the same direction, Display control means is provided for switching and controlling the display brightness of the display means at at least two levels, and for controlling the display means to display a predetermined image at the highest brightness level at the time of image pickup by the image pickup means. Therefore, the flash function can be realized without mounting new components. As a result, it is possible to eliminate an increase in mounting area and thickness due to the addition of new components, generation of noise during flash emission, and an increase in cost.
[0009]
Further, in the electronic device according to the present invention, the display control means changes the display brightness of the display means before and after the moment when the imaging means captures an image, and the display brightness of the display means is increased before the moment of imaging. The brightness level is switched to the highest brightness level, and the display brightness of the display means is switched to a brightness level lower than the highest brightness level after the moment of imaging. In this way, since the luminance is increased only at the moment of shooting, power consumption can be reduced.
[0010]
In the electronic apparatus according to the present invention, the predetermined image is an image obtained by emitting all of the pixels constituting the display unit in white. By making all the pixels emit white light, the brightness necessary for flash emission can be obtained most efficiently.
[0011]
In the electronic apparatus according to the present invention, it is preferable that the predetermined image is an image selected in advance before imaging by the imaging unit.
[0012]
In the electronic device according to the present invention, the display means includes a first display means provided on the front side of the electronic device, and a second display means provided on the back side of the electronic device. The image pickup means includes a first image pickup means provided on the front side of the electronic device and a second image pickup means provided on the back side of the electronic device, and the display control means When photographing using the second imaging means, the second display means displays the predetermined image at the highest luminance level, and the first display means at the arbitrary luminance level. When displaying an image from the second imaging unit and shooting using the first imaging unit, the display control unit causes the first display unit to display the predetermined image at the highest luminance level. In addition, the second display means can be arbitrarily set at any brightness level. It is desirable to display an image.
[0013]
Further, an imaging method according to the present invention is an imaging method using an electronic device including a display unit and an imaging unit, wherein a display surface of the display unit and an imaging direction of the imaging unit are set in the same direction, The display brightness of the display means is switched and controlled at at least two levels, and at the time of imaging by the imaging means, the display means displays a predetermined image at the highest brightness level.
[0014]
Furthermore, the imaging method according to the present invention switches the display luminance of the display means to the highest luminance level before the moment of imaging by the imaging means, and after the moment of imaging by the imaging means, The display brightness is switched to a brightness level lower than the highest brightness level.
[0015]
The electronic apparatus according to the present invention includes: a light emitting unit that emits light when energized; a lighting control unit that controls lighting of the light emitting unit; and a lighting instruction unit that instructs the lighting control unit to turn on the light emitting unit. And the lighting control means turns on the light emitting means at a first luminance for the first lighting application, and when the lighting instruction means gives a lighting instruction, Control for lighting at the second luminance is performed for lighting use.
[0016]
According to this configuration, it is possible to light up one light emitting means with a plurality of different luminances and use it for various lighting applications to obtain an appropriate light emission mode for each application. For example, in an electronic device provided with an imaging means, the first lighting application is an incoming call notification for a telephone or the like, and the second luminance in the second lighting application is higher than the first luminance in the first lighting application. Further, by making the brightness high, it becomes possible to use a light emitting means such as an LED as a flash (photographing illumination) at the time of photographing by the imaging means. In this case, there is no need to provide a dedicated light emitting means for improving image quality using a flash in a low illuminance environment, and an increase in mounting area and thickness due to the addition of new members, an increase in cost, etc. can be suppressed, and the size of the device can be reduced. Reduction, cost reduction, and noise reduction.
[0017]
Moreover, as one aspect of the present invention, the lighting control means turns on the light emitting means for notification of an incoming call as the first lighting application when there is an incoming call by the communication means.
[0018]
According to this configuration, by using the light emitting means for incoming call notification, incoming calls such as telephone calls can be notified visually.
[0019]
Moreover, as one aspect of the present invention, the lighting control means turns on the light emitting means for notifying a time alarm as the first lighting application when a predetermined alarm setting time is reached.
[0020]
According to this configuration, the time alarm can be visually notified by using the light emitting means for time alarm notification.
[0021]
Further, as one aspect of the present invention, the lighting control unit causes the light emitting unit to emit light for photographing illumination of the imaging unit as the second lighting application.
[0022]
According to this configuration, by using the light emitting means for photographing illumination as the second lighting application, one light emitting means can be used for incoming call notification, time alarm notification, and the like, and flash light emission is performed using the light emitting means as photographing illumination. be able to.
[0023]
Further, as one aspect of the present invention, the lighting control unit causes the light emitting unit to emit light at a second luminance before photographing by the imaging unit when performing imaging illumination of the imaging unit as the second lighting application. At the same time, the light emitting means is caused to emit light at a third luminance brighter than the second luminance at the time of photographing by the imaging means.
[0024]
According to this configuration, when the light emitting means is used as photographing illumination, for example, pre-light emission before photographing and flash light emission at photographing can be realized by one light emitting means, and a photographed image with good image quality can be obtained. Become.
BEST MODE FOR CARRYING OUT THE INVENTION
[0025]
(First embodiment)
Embodiments of an electronic device according to the present invention and a photographing method using the electronic device will be described with reference to the drawings. In this embodiment, a camera-equipped mobile phone (hereinafter simply referred to as “mobile phone”) will be described as an example of the electronic apparatus according to the present invention. However, as long as the electronic device includes a display unit, the present invention may be applied not only to a mobile phone but also to a PDA, a notebook PC, a digital camera, or the like.
[0026]
FIG. 1 is a block diagram showing a configuration of a mobile phone according to an embodiment of the present invention. The cellular phone 101 of this embodiment corresponds to an antenna 112, a silent transmission / reception unit 102, a transmission / reception unit 3, a handset 104, an operation unit 105, a memory 106, and display control means in the claims. Control unit 107, display unit 108 corresponding to display unit and first display unit, rear display unit 109 corresponding to display unit and second display unit, and imaging corresponding to imaging unit and first imaging unit And a rear imaging unit 111 corresponding to the imaging unit and the second imaging unit.
[0027]
When the user operates the operation unit 105 to turn on the power of the mobile phone 101, the control unit 107 detects that the power is turned on and puts each unit into an operable state. Then, when the operation unit 105 is operated to input the other party's telephone number, or the operation unit 105 is operated to call the other party's telephone number registered in the memory 106 and the call key is pressed, the silent transmission / reception unit Radio transmission for calling is performed from the antenna 112 to the base station via 102. When the other party responds, the control unit 107 receives the response signal transmitted from the base station by the silent transmission / reception unit 102 via the antenna 112, and makes the transmission / reception unit 3 operable. As a result, the user of the mobile phone 101 can make a call with the other party via the handset 104.
[0028]
The display unit 108 and the back display unit 109 display a message to that effect when the mobile phone 101 is turned on, display the phone number when the phone number is entered or called, and when the other party answers Display to that effect. In addition, the control unit 107 controls the display unit 108 and the rear display unit 109 at the time of photographing the subject, and when imaging is performed by the user operating the operation unit 105, the captured image data is transferred to the memory 106. And save.
[0029]
FIG. 2 is an external view showing the mobile phone 101 of the present embodiment. As shown in the figure, the cellular phone 101 of the present embodiment is a foldable type in which an upper housing 1a and a lower housing 1b can be opened and closed via a hinge portion 1c. As shown in FIG. 2A, the display unit 108 and the imaging unit 110 are arranged on the same surface on the inner surface (front surface) of the upper housing 1a, and the outer surface (rear surface) of the upper housing 1a. ) Is provided with an operation unit 105 including various keys such as a power key 115 and a shutter key 116. Further, as shown in FIG. 2B, the rear display unit 109 and the rear imaging unit 110 are arranged on the same surface on the rear surface of the upper housing 1a. As described above, the mobile phone 101 of this embodiment is equipped with two image pickup units.
[0030]
When the subject is imaged, the display content and brightness of the display unit 108 and the rear display unit 109 differ depending on the imaging unit used. FIG. 3 is an explanatory diagram showing display contents and display brightness of the display unit 108 and the back display unit 109 at the time of preview and shooting when imaging is performed using the back imaging unit 111. FIG. 4 is an explanatory diagram showing display contents and display luminances of the display unit 108 and the back display unit 109 at the time of preview and shooting when imaging is performed using the imaging unit 110.
[0031]
As shown in FIG. 3, at the time of preview when imaging using the rear imaging unit 111, an image from the rear imaging unit 111 is displayed on the display unit 108 with an arbitrary luminance, and a luminance of 1 is displayed on the rear display unit 109. Will display a flash-only image. Further, during imaging using the rear imaging unit 111, an image from the rear imaging unit 111 is displayed on the display unit 108 with an arbitrary luminance, and a flash-only image is displayed on the rear display unit 109 with a luminance of 2. It should be noted that the luminance level of luminance 1 is higher than luminance 1 and luminance 2, and the display of the flash-only image at luminance 2 plays the role of flash. In addition, the flash dedicated image displayed on the rear display unit 109 during preview and the flash dedicated image displayed on the rear display unit 109 during shooting need not be the same, and may be different images.
[0032]
On the other hand, as shown in FIG. 4, at the time of preview when imaging is performed using the imaging unit 110, an image from the imaging unit 110 is displayed on the display unit 108 with a luminance of 3 and the rear display unit 109 is displayed with a luminance of 4 A flash-only image is displayed. Further, at the time of imaging using the imaging unit 110, the display unit 108 performs arbitrary display at an arbitrary luminance, and the rear display unit 109 also performs arbitrary display at an arbitrary luminance. It should be noted that the luminance level is higher in luminance 3 than luminance 3 and luminance 4, and the display of the flash-only image at luminance 4 plays the role of flash.
[0033]
The flash-dedicated image may be displayed by reading image data registered in the memory 106 in advance, or may be a display in which all pixels are simply white. By making all the pixels emit white light, the brightness necessary for flash emission can be obtained most efficiently. However, if red, blue, and green are used, special shooting different from normal can be performed. For example, an interesting effect can be given to a captured image by causing all pixels to emit red light.
[0034]
Also, one type of flash-dedicated image may be used, but a plurality of types may be prepared. For example, a plurality of types of flash-dedicated images may be registered in the memory in advance, and a desired flash-dedicated image may be selected before starting shooting by a predetermined key operation by the operation unit 105.
[0035]
Next, an operation (flash photographing method) of the mobile phone 101 when imaging is performed using the mobile phone 101 of the present embodiment will be described with reference to FIGS. 5 and 6.
[0036]
FIG. 5 is a flowchart illustrating an imaging processing procedure when imaging is performed using the rear imaging unit 111. A program for executing the imaging processing procedure shown in the figure is stored in a memory (not shown) in the control unit 107. For example, when the user enters a shooting preparation stage by performing a predetermined key operation, the control unit A CPU (not shown) in 107 executes the program.
[0037]
When imaging using the rear imaging unit 111 (rear imaging), the display unit 108 is used instead of the viewfinder, and the rear display unit 109 is used as a flash light source. First, at the time of previewing in the shooting preparation stage, a preview screen is displayed on the rear display unit 109 at a luminance level of luminance 1, and the image from the rear imaging unit 111 is continuously displayed on the display unit 108 at an arbitrary luminance. An operation is performed (step S11). In the preview operation in step S11, a black screen having a luminance value of 0 as luminance 1 may be displayed on the rear display unit 109. However, in a low illuminance environment, the preview screen becomes dark and the subject becomes dark. In the case where it is difficult to see, it is used instead of the light that illuminates the subject. Therefore, it is preferable to turn on the rear display unit 109 with luminance 1 having a certain level of brightness.
[0038]
Next, it is determined whether the shutter key 116 is pressed during the preview operation (step S12). If the shutter key 116 is not pressed, the process returns to step S11 to continue the preview operation. If the shutter key 116 is pressed (that is, during imaging), the display brightness of the rear display unit 109 is set to a brightness 2 brighter than the brightness 1. The flash operation is performed by setting, and the rear imaging unit 111 performs imaging in accordance with this timing (step S13). Note that the luminance 2 is preset to a luminance corresponding to the flash light. Next, the image data of the image captured by the rear imaging unit 111 is captured and stored in the memory 106 (step S14). Note that the display luminance of the display unit 108 at the time of image capturing in step S13 may be any luminance commensurate with the preview display.
[0039]
After capturing the image data, the display brightness of the rear display unit 109 is returned from the brightness 2 to the brightness 1, and a flash-only image is displayed (step S15). Thereafter, it is determined whether a predetermined key operation has been performed on the operation unit 105 and the photographing has been completed (step S16). If it is not the end of shooting, the process returns to step S11, and if it is the end of shooting, this process ends.
[0040]
FIG. 6 is a flowchart illustrating an imaging processing procedure when imaging is performed using the imaging unit 110. A program for executing the imaging processing procedure shown in the figure is stored in a memory (not shown) in the control unit 107. For example, when the user enters a shooting preparation stage by performing a predetermined key operation, the control unit A CPU (not shown) in 107 executes the program.
[0041]
When imaging using the imaging unit 110 (frontal imaging), the display unit 108 is used instead of the finder and also used as a flash light source. In this case, since the rear display unit 109 is not used for a flash light source, it displays an arbitrary image with an arbitrary luminance during preview and during shooting. First, at the time of previewing in the shooting preparation stage, a preview operation for continuously displaying images from the imaging unit 110 at a luminance level of 3 on the display unit 108 is performed (step S21).
[0042]
Next, it is determined whether the shutter key 116 is pressed during the preview operation (step S22). If the shutter key 116 is not pressed, the process returns to step S21 to continue the preview operation. If the shutter key 116 is pressed (that is, during imaging), the display brightness of the display unit 108 is set to brightness 4 that is brighter than brightness 3. At the same time, the display screen is switched to the flash-dedicated image to perform the flash operation, and the imaging unit 110 performs imaging in accordance with this timing (step S23). Note that the luminance 4 is preset to a luminance corresponding to the flash light. Next, the image data of the image captured by the image capturing unit 110 is captured and stored in the memory 106 (step S24).
[0043]
After capturing the image data, the display luminance of the display unit 108 is returned from luminance 4 to luminance 3, and the display screen is switched to the image from the imaging unit 110 (step S25). Thereafter, it is determined whether or not a predetermined key operation has been performed on the operation unit 105 to end the photographing (step S26). If it is not the end of shooting, the process returns to step S21, and if it is the end of shooting, this process ends.
[0044]
As described above, the mobile phone 101 according to the present embodiment uses light emitted from the display unit 108 or the back display unit 109 as a flash light source when taking an image. As a result, the flash function can be realized without newly mounting components such as a flash device and LEDs. As a result, problems such as an increase in mounting area and thickness due to the addition of new components, generation of noise during flash emission, and increase in cost can be solved. Since the display brightness of the display unit 108 or the rear display unit 109 used as a flash light source is increased only at the moment of shooting (during shooting), power consumption can be reduced.
[0045]
Note that the mobile phone 101 of the present embodiment has two imaging units and two display units, but may be three or more, or may be different numbers. Further, the luminance change may be stepwise or continuous. Further, the luminance 2 of the rear display unit 109 and the luminance 4 of the display unit 108 at the time of shooting may be arbitrarily set by the user within a predetermined range corresponding to the flash light. Further, examples of the display unit 108 and the back display unit 109 include a liquid crystal display device with a backlight, a plasma display, an organic EL, an FED (field emission display), and a light emitting diode array.
[0046]
(Second Embodiment)
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0047]
In the present embodiment, a configuration example of an electronic device will be described using an example applied to a mobile phone device. FIG. 7 is a block diagram showing a configuration of a mobile phone device according to an embodiment of the present invention. FIG. 8 is a perspective view showing an external configuration of the mobile phone device according to the present embodiment, where (a) shows the front side and (b) shows the back side.
[0048]
In FIG. 7, the mobile phone device of the present embodiment includes an antenna 201, a wireless transmission / reception unit 202 as a communication unit that transmits and receives wireless signals, a handset 203 having a microphone and a speaker, a transmission / reception unit 204, An operation unit 205 including a plurality of key buttons for operating the apparatus, a storage unit 206 including a storage element such as a semiconductor memory, and an LED unit 207 used for notification of the state of the apparatus main body such as an incoming call or a charging state. I have. In addition, the cellular phone device has a first display unit 208 and a second display unit 209 made of a liquid crystal display element (LCD) or the like, and a CCD (Charge Coupled Device) image sensor or a CMOS (Complementary Metal Oxide Semiconductor) image sensor. A first imaging unit 210 and a second imaging unit 211 as a means, a first display light source unit 212, a second display light source unit 213, and a control unit 214 for controlling each unit constituting the apparatus. I have.
[0049]
The transmitter / receiver unit 204 outputs the voice of the other party to the speaker of the transmitter / receiver 203, and transmits the voice of the user of the apparatus input to the microphone of the transmitter / receiver 203 to the control unit 214. The first display unit 208 and the second display unit 209 are used to display operation contents when various functions of the apparatus are executed.
[0050]
Here, the first display unit 208 and the first imaging unit 210 are provided on the front side of the mobile phone device as shown in FIG. The second display unit 209 and the second imaging unit 211 are provided on the back side of the mobile phone device as shown in FIG. As shown in FIGS. 8A and 8B, the LED unit 207 is arranged at the upper end of the apparatus main body so that the light emitted from either surface can be seen over both the front side and the back side. It is installed.
[0051]
The LED unit 207 corresponds to the light emitting means described in the claims, and is configured to include, for example, LEDs (light emitting diodes) of three colors of red, green, and blue, and these different color LEDs are used. Various notification patterns can be realized with only one LED unit 207 by realizing various kinds of colors including white and changing the lighting pattern and brightness. For example, as described above, the state of the apparatus main body such as an incoming call or a charging state is notified. In addition, it has a function of notifying the activation state indicating that the power is turned on, and a communication function for exchanging data with other mobile phone devices using light such as infrared rays. Further, the LED unit 207 has a flash function that emits white light with high luminance as photographing illumination when a shutter button as a lighting instruction unit in the operation unit 205 is operated.
[0052]
The control unit 214 corresponds to the lighting control unit described in the claims, and controls the lighting pattern of the LED unit 207 such as the lighting pattern and luminance. Note that the LED unit 207 is shared with the second display unit light source unit 213 of the second display unit 209, and display variations can be increased with respect to the second display unit 209 with a small display color such as a monochrome display element. It is also possible to divert.
[0053]
The light source unit 212 for the first display unit is composed of an LED or the like, and constitutes a so-called backlight or front light used to make the first display unit 208 easy to see in a dark environment. Similarly, the light source unit 213 for the second display unit includes an LED or the like, and constitutes a so-called backlight or front light used to make the second display unit 209 easy to see in a dark environment.
[0054]
Next, the operation of the cellular phone device of the present embodiment configured as described above will be described.
[0055]
When the user performs an operation of turning on the power using the operation unit 205, the operation is detected by the control unit 214, and each unit of the apparatus is made operable. After the apparatus is ready for use, the user performs an operation of dialing the telephone number of the called party on the operation unit 205 or the called party's telephone stored in the storage unit 206 When an operation for calling a number is performed and the call key button is operated, the control unit 214 performs a call operation, and transmits a wireless signal for calling from the antenna 1 via the wireless transmission / reception unit 202.
[0056]
A radio signal transmitted from the antenna 201 is received by a base station (not shown). When the base station receives the radio signal, the calling user makes a call to the other party for the purpose of the call. When the other party answers by this call, a wireless signal for this response is received by the wireless transmission / reception unit 202 via the antenna 201. As a result, the transmitter / receiver unit 204 can operate under the control of the control unit 214 and can communicate with the other party using the transmitter / receiver 203.
[0057]
When the power is turned on, the first display unit 208 and the second display unit 209 display the power-on state by display control of the control unit 214. Further, when a telephone number is input or when a telephone number stored in the storage unit 206 is called, each telephone number is controlled by the control unit 214 to be displayed on the first display unit 208 or the second display unit 209. Is displayed. Further, when the other party answers, a message to that effect is displayed on the first display unit 208 or the second display unit 209.
[0058]
Based on the control of the control unit 214, the LED unit 207 is lit to notify the incoming call together with the incoming call tone. In addition, the state of the device such as during a call, charging, and completion of charging is indicated by a light emitting state, and notification is made that the power is on even when the first display unit 208 and the second display unit 209 are off. .
[0059]
In addition, the control unit 214 captures a captured image by controlling the first imaging unit 210 and the second imaging unit 211 when the subject is captured. At this time, when the shutter is released by the shooting instruction operation of the operation unit 205, the control unit 214 transfers the image data obtained by the first imaging unit 210 or the second imaging unit 211 to the storage unit 206 as imaging data. Transfer and save.
[0060]
Here, a photographing operation when photographing using the second imaging unit 211 and a luminance state of the LED unit 207 in the photographing operation will be described. FIG. 9 is a flowchart showing a schematic procedure of the photographing operation when the second imaging unit 211 is used. FIG. 10 is an operation explanatory diagram showing the luminance state of the LED unit 207 at the time of preview and imaging.
[0061]
In the present embodiment, when shooting using the second imaging unit 211, the captured image of the subject is displayed using the first display unit 208 or the second display unit 209 instead of the viewfinder, and the LED unit 207 is used as a flash light source. use. At the start of shooting, in order to show the operation state of the second image pickup unit 211, as shown in FIG. 10, the red LED of the LED unit 207 is turned on, and the image pickup unit is operating with a luminance of “2”. (Step S31), a preview operation for continuously displaying the image data obtained by the second imaging unit 211 on the first display unit 208 or the second display unit 209 is executed (step S32).
[0062]
Here, instead of setting the brightness to “2”, it is possible to turn off the light having the same brightness “0” as when stopped (during non-operation). However, when shooting in a dark environment such as a room, the pupil of the human eye is open in a dark place, so that the red eye phenomenon may occur in which light is reflected on the fundus and appears red. In this embodiment, since it is also used as a light for illuminating the subject, the LED unit 207 is turned on with a brightness of “2” having a certain level of brightness, and functions as pre-emission during flash emission.
[0063]
Next, it is determined whether or not the shutter button of the operation unit 205 has been pressed (step S33). If the shutter button is not pressed, the preview operation in step S32 is repeated. When the shutter button is pressed and the shutter is released, the control unit 214 turns on the green and blue LEDs of the LED unit 207 simultaneously. Thus, the brightness is set to a brightness “3” brighter than the brightness “2”, and the flash emission operation is executed (step S34). Then, the image data obtained by the second imaging unit 211 in accordance with the flash emission timing is stored in the storage unit 206 as imaging data (step S35). After capturing the imaging data, the green and blue LEDs of the LED unit 207 are turned off to return from the luminance “3” to the luminance “2”, and the flash emission ends (step S36).
[0064]
FIG. 11 is an operation explanatory diagram illustrating a change in luminance of the LED unit 207. In FIG. 11, when squares arranged side by side next to red, green, and blue are defined as one unit time, a portion marked “ON” indicates that the LED is lit for one unit time.
[0065]
When there is no incoming call such as a telephone call and the display is stopped, that is, as shown in FIG. 11A, the LED unit 207 has a luminance of “0”. When there is an incoming call in this state, as shown in (b), the green and blue LEDs are simultaneously turned on / off at a predetermined cycle (here, 6 unit time = 1 cycle) (first time) Light emission by lighting application). In the preview operation, only the red LED is always lit as shown in (c). When shooting is performed by pressing the shutter button in this state, as shown in (d), each of the green and blue LEDs is lit for one unit time, and a flash emission operation is performed (emission by the second lighting application).
[0066]
As described above, according to the mobile phone device of the present embodiment, it is possible to realize a flash function without the need to newly add a flash device or a light emitting diode, increase in mounting area and thickness by adding new members, increase in cost, and Problems such as an increase in noise can be solved. In addition, since the luminance can be increased only at the moment of imaging, power consumption can be reduced.
[0067]
In the above embodiment, the change in luminance of the LED unit 207 is realized by turning on LEDs of different colors. However, by using a plurality of LEDs of the same color or increasing the current value flowing through the LEDs, the luminance can be increased. You may make it implement | achieve the change of.
[0068]
In the above embodiment, the first lighting application of the LED unit 207 is an incoming call notification for a telephone or the like, and the second lighting application is a flash emission. However, as the first lighting application or a new third lighting application. Also, it can be used for time alarm notification when a predetermined alarm set time comes, e-mail reception notification, or the like.
[0069]
Further, in the above-described embodiment, an example of an operation in the case where an image is captured by the second imaging unit 211 has been described, but the first imaging unit 210 can be similarly realized.
[0070]
Further, in the above-described embodiment, a configuration example in which two imaging units (first imaging unit 210 and second imaging unit 211) and two display units (first display unit 208 and second display unit 209) are mounted. However, regardless of the number of imaging units and display units, the imaging operation flow, the display content of each display unit at the time of imaging, and the luminance can be considered similarly. For this reason, there is no difference from one embodiment of the present invention.
[0071]
In the above embodiment, the flash function is realized by the light emission of the LED unit 207. However, the flash function can be realized by the light source unit 212 for the first display unit or the light source unit 213 for the second display unit. That is, when shooting with the first imaging unit 210 on the front side, the luminance of the light source unit 212 for the first display unit is increased to emit flash light, and when shooting with the second imaging unit 211 on the back side, What is necessary is just to raise the brightness | luminance of the light source part 213 and to carry out flash light emission.
[0072]
In the above embodiment, the LED brightness control is applied to the mobile phone device. However, in addition to electronic devices such as a PDA (personal digital assistant) with a camera, a personal computer (so-called notebook personal computer) is used. Is also applicable.
[0073]
Next, an application example of the mobile phone device according to the present embodiment will be described.
[0074]
FIG. 12 is a perspective view showing an external configuration of a first application example of the mobile phone device according to the present embodiment. In the first application example, the LED unit 12 is arranged so that it can slide back and forth (perpendicular to the imaging surface of the imaging unit) with respect to the apparatus main body. With this configuration, the illuminance during flash emission can be increased.
[0075]
FIG. 13 is a perspective view showing an external configuration of a second application example of the mobile phone device according to the present embodiment. In the second application example, the LED unit 12 is arranged so that it can slide up and down (in a direction parallel to the imaging surface of the imaging unit) with respect to the apparatus main body. With this configuration, the illuminance during flash emission can be increased as in the first application example.
[0076]
FIG. 14 is a perspective view showing an external configuration of a third application example of the mobile phone device according to the present embodiment. In the third application example, a reflective material 215 is provided around the LED unit 12. The reflector 215 is arranged at an angle so that light spreads forward with respect to the apparatus main body (forward direction with respect to the imaging surface of the imaging unit). A similar reflector is provided on the back side of the apparatus main body. With this configuration, the illuminance at the time of flash emission can be increased as in the first and second application examples.
[0077]
The position where the LED unit 12 is disposed is not limited to the positions shown in FIGS. 8 and 12 to 14, and may be arbitrarily provided according to the device configuration. For example, LED units may be provided as appropriate, such as the front part, rear part, both front part and rear part of the device body, side parts, the vicinity of the casing corners, the hinge part or the vicinity of the hinge part, and the end part on the operation part side. it can.
[0078]
According to this embodiment mentioned above, it can be used for a plurality of uses by lighting one light emitting means composed of an LED or the like with different brightness for each use. For example, the first lighting use is an incoming call notification. Then, the second luminance for the second lighting application is higher than the first luminance for the first lighting application, so that it can be used as a flash during camera shooting. This eliminates the need to provide dedicated light emitting means for improving image quality in low-light environments, solves the problem of increased mounting area and thickness due to the addition of new members, and increases material costs and costs. It is possible to solve the problem that noise increases due to increase or increase in light emitting means. Therefore, in the present embodiment, in an electronic apparatus equipped with an imaging unit, it is possible to achieve downsizing, cost reduction, and noise reduction while mounting a flash function to improve image quality in a low illumination environment. .
[0079]
In addition, by using the first lighting application of the light emitting means as an incoming call notification, the user can visually recognize an incoming call such as a telephone call. Moreover, the user can visually recognize the time alarm of the set time by using the first lighting application of the light emitting means as the time alarm notification. In addition, by using the second lighting application of the light emitting means as photographing illumination, one light emitting means can be used as incoming notification or time alarm notification, and can be used as photographing illumination. [0083]
Although the present invention has been described in detail and with reference to specific embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention.
[0080]
This application is filed with Japanese Patent Application No. 10 filed on Dec. 12, 2002. Japanese Patent Application No. 2002-360843, filed on Dec. 26, 2002. Based on 2002-377208, the contents of which are incorporated herein by reference.
[Industrial applicability]
[0081]
As described above, according to the electronic device and the photographing method using the electronic device according to the present invention, it is possible to provide an electronic device that realizes a flash function without mounting a new component. As a result, it is possible to eliminate an increase in mounting area and thickness due to the addition of new components, generation of noise during flash emission, and an increase in cost.
[Brief description of the drawings]
[0082]
FIG. 1 is a block diagram showing a configuration of a mobile phone device according to an embodiment of the present invention. FIG. 2 is an external view showing a mobile phone device according to an embodiment of the invention. FIG. 4 is an explanatory diagram showing display contents and display brightness of the display unit and the rear display unit during preview and shooting when imaging is performed. FIG. 4 is when previewing and shooting when imaging is performed using the imaging unit. Explanatory drawing which shows each display content and each display brightness | luminance of a display part and a back display part in FIG. 5 is a flowchart which shows the imaging process sequence at the time of imaging using a back image pick-up part [FIG. 6] It images using an image pick-up part FIG. 7 is a block diagram illustrating a configuration of a mobile phone device according to an embodiment of the present invention. FIG. 8 is a perspective view illustrating an external configuration of the mobile phone device according to an embodiment of the present invention. . FIG. 9A is a diagram showing the front side, and FIG. 9B is a diagram showing the back side. FIG. 9 is a schematic procedure of photographing operation when using the second imaging unit in the mobile phone device according to the embodiment of the present invention. FIG. 10 is an operation explanatory view showing the luminance state of the LED unit at the time of preview and imaging of the mobile phone device according to the embodiment of the present invention. FIG. 12 is a perspective view showing an external configuration of a first application example of a mobile phone device according to an embodiment of the present invention. FIG. 14 is a perspective view illustrating an external configuration of a second application example of the telephone device. FIG. 14 is a perspective view illustrating an external configuration of a third application example of the mobile phone device according to the embodiment of the present invention.
[0083]
101 mobile phone,
DESCRIPTION OF SYMBOLS 102 Wireless transmission / reception part 103 Transmission / reception part 104 Handset 105 Operation part 106 Memory 107 Control part 108 Display part 109 Rear display part 110 Imaging part 111 Back surface imaging part 112 Antenna 201 Antenna 202 Wireless transmission / reception part 203 Handset 204 Transmission / reception part 205 Operation Unit 206 storage unit 207 LED unit 208 first display unit 209 second display unit 210 first imaging unit 211 second imaging unit 212 light source unit for first display unit 213 light source unit for second display unit 214 control unit 215 reflector

Claims (12)

  1. An electronic device comprising a display means and an imaging means, wherein the display surface of the display means and the imaging direction of the imaging means are set in the same direction,
    Display control means is provided that controls the display brightness of the display means at at least two levels, and controls the display means to display a predetermined image at the highest brightness level during imaging by the imaging means. Electronic equipment.
  2. The display control means includes
    Changing the display brightness of the display means before and after the moment when the imaging means images,
    The display brightness of the display means is switched to the highest brightness level before the instant of imaging, and the display brightness of the display means is switched to a brightness level lower than the highest brightness level after the instant of imaging. The electronic device according to claim 1.
  3. 3. The electronic apparatus according to claim 1, wherein the predetermined image is an image in which all pixels constituting the display unit emit white light.
  4. 3. The electronic apparatus according to claim 1, wherein the predetermined image is an image selected in advance before imaging by the imaging unit.
  5. The display means has first display means provided on the front side of the electronic device, and second display means provided on the back side of the electronic device,
    The imaging means has a first imaging means provided on the front side of the electronic device, and a second imaging means provided on the back side of the electronic device,
    The display control means includes
    When shooting using the second imaging means,
    Displaying the predetermined image at the highest luminance level on the second display means, and displaying the image from the second imaging means at an arbitrary luminance level on the first display means,
    When shooting using the first imaging means,
    The display control unit causes the first display unit to display the predetermined image at the highest luminance level, and causes the second display unit to display an arbitrary image at an arbitrary luminance level. The electronic device according to claim 1, 2, 3, or 4.
  6. A photographing method using an electronic device comprising a display means and an imaging means, wherein the display surface of the display means and the imaging direction of the imaging means are set in the same direction,
    A photographing method characterized in that the display brightness of the display means is controlled to be switched at least at two levels, and the display means displays a predetermined image at the highest brightness level at the time of image pick-up by the image pick-up means.
  7. Before the moment when the imaging means captures an image, the display brightness of the display means is switched to the highest brightness level,
    The imaging method according to claim 6, wherein the display luminance of the display unit is switched to a luminance level lower than the highest luminance level after the moment when the imaging unit captures an image.
  8. A light emitting means that emits light when energized;
    Lighting control means for controlling lighting of the light emitting means;
    A lighting instruction means for instructing the lighting control means to turn on the light emitting means,
    The lighting control means turns on the light emitting means at a first brightness for the first lighting application, and when the lighting instruction means gives a lighting instruction, the light emitting means is used for the second lighting application. The electronic device is characterized in that it is controlled to turn on at a second luminance.
  9. 9. The electronic apparatus according to claim 8, wherein the lighting control means turns on the light emitting means for notification of an incoming call as the first lighting application when there is an incoming call by a communication means.
  10. 9. The electronic device according to claim 8, wherein the lighting control means turns on the light emitting means for notifying a time alarm as the first lighting application when a predetermined alarm setting time is reached. machine.
  11. 11. The electronic apparatus according to claim 8, wherein the lighting control unit causes the light emitting unit to emit light for photographing illumination of the imaging unit as the second lighting application. .
  12. The lighting control means causes the light emitting means to emit light at a second luminance before photographing by the imaging means when performing photographing illumination of the imaging means as the second lighting application, and the photographing control means 12. The electronic apparatus according to claim 11, wherein the light emitting means emits light with a third luminance brighter than the second luminance.
JP2004558446A 2002-12-12 2003-12-09 Electronic device and photographing method using the electronic device Expired - Fee Related JP4098305B2 (en)

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US8085318B2 (en) 2005-10-11 2011-12-27 Apple Inc. Real-time image capture and manipulation based on streaming data
US7663691B2 (en) 2005-10-11 2010-02-16 Apple Inc. Image capture using display device as light source
JP5751270B2 (en) * 2013-03-21 2015-07-22 カシオ計算機株式会社 Imaging apparatus, imaging control method, and program
CN104717415B (en) 2013-12-12 2019-03-01 华为技术有限公司 A kind of photographic device
US9462169B2 (en) 2013-12-31 2016-10-04 Huawei Technologies Co., Ltd. Shooting method, apparatus, and terminal
CN104754203B (en) * 2013-12-31 2018-07-31 华为技术有限公司 Image pickup method, device and terminal

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JP2003140236A (en) * 2001-11-05 2003-05-14 Fuji Photo Film Co Ltd Camera
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