KR20170005648A - Camera and mobile terminal comprising the camera - Google Patents

Abstract

The mobile terminal according to an embodiment of the present invention may include a terminal body having a control unit and a camera provided in the terminal body.
The camera includes: a zooming unit having a plurality of zoom lenses having different magnifications; And a driving unit connected to the zooming unit to move the plurality of zooming lenses so that any one of the plurality of zooming lenses is aligned on an optical axis, And controls the driving unit to perform zooming in a range of a reference magnification.

Description

[0001] CAMERA AND MOBILE TERMINAL COMPRISING THE CAMERA [0002]

 The present invention relates to a camera capable of optical zoom and a mobile terminal including the same.

The camera in which the zoom function is implemented includes a linear inner zoom camera including a driving unit and a focusing unit for performing zooming in a straight cylindrical lens barrel, a front protruding type lens for zooming, A camera, a banding compact zoom type camera in which a mirror or a prism is inserted to change the intermediate light path to reduce the length of the camera module, a camera having two different focal lengths And a dual zoom camera in which fixed focus lenses are arranged in parallel.

However, the dual zoom camera has a disadvantage in that it can implement only a limited number of magnifications.

In addition, the zooming method by moving the zoom lens in the direction of the conventional optical axis increases the size of the camera in the direction of the optical axis, so that it is difficult to apply the zooming in the mobile terminal.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a camera capable of realizing various magnifications in a limited space and a mobile terminal having the same.

The mobile terminal according to an embodiment of the present invention may include a terminal body having a control unit and a camera provided in the terminal body.

The camera may further include: a zooming unit having a plurality of zoom lenses having different magnifications; And a driving unit connected to the zooming unit to move the plurality of zooming lenses so that any one of the plurality of zooming lenses is aligned on an optical axis, And controls the driving unit to perform zooming in a range of a reference magnification.

It is preferable that the zoom lenses are disposed at predetermined intervals on the same plane and are moved in a direction intersecting with the optical axis direction.

Preferably, the driving unit includes a linear motion member that is at least partially engaged with the driving motor and the driving motor, and performs reciprocating linear motion when the driving motor is rotated. At this time, the plurality of zoom lenses may move in connection with the linear motion member.

Further, the zooming unit may include first and second zooming units, and the first and second zooming units may include zooming lenses and auxiliary zooming lenses, respectively. The zoom lens and the auxiliary zoom lens, which are capable of realizing a preset reference magnification by multiplying the respective zoom magnifications among the zoom lenses and the auxiliary zoom lenses, are arranged on the optical axis, and the first and second zoom- So that the driving unit can be controlled.

Meanwhile, the driving unit may include first and second driving units, and the first and second driving units may move the zoom lenses and the auxiliary zoom lenses, respectively.

A mobile terminal according to another exemplary embodiment of the present invention includes a diaphragm portion having a plurality of diaphragms having different diaphragm values and a third driving portion connected to at least a portion of the plurality of diaphragms to move the diaphragms .

The controller may control the third driving unit so that the diaphragm having the diaphragm value corresponding to the predetermined target diaphragm value is aligned on the optical axis.

Further, the diaphragms may be arranged at predetermined intervals on the same plane, and the diaphragms may be moved in a direction crossing the optical axis direction.

The predetermined range of the reference magnification includes a plurality of discontinuous reference magnifications, and the zoom lens having the magnification corresponding to the reference magnification may be aligned on the optical axis.

And acquiring a first image of a subject at a first reference magnification smaller than the target magnification when a control command for photographing the subject at a target magnification that is not contained within the predetermined reference magnification range is applied; Obtaining a second image at a second reference magnification that is greater than the target magnification; Upscaling the first image to form a third image; Downscaling the second image to form a fourth image; And synthesizing the third and fourth images.

According to another aspect of the present invention, there is provided a camera for imaging a subject according to an embodiment of the present invention, the camera including: a zooming unit having a plurality of zoom lenses having different magnifications; A driving unit connected to the zooming unit to move the plurality of zoom lenses such that any one of the plurality of zooming lenses is aligned on an optical axis; And a controller for controlling the driving unit such that the camera performs zooming in a range of a predetermined reference magnification by movement of the plurality of zoom lenses.

According to the present invention, by moving the plurality of zoom lenses in the direction crossing the optical axis direction, the size of the camera is prevented from increasing in the optical axis direction. Furthermore, by applying the camera to the mobile terminal, the thickness of the mobile terminal can be reduced.

Also, in the present invention, any one of the zoom lenses having different magnifications is aligned on the optical axis to perform zooming, so that the camera can perform zooming in a range of various reference magnifications.

In addition, according to the present invention, when a control command for photographing a subject at a target magnification that is not included in a range of a predetermined reference magnification is applied, images obtained at a reference magnification closest to the target magnification are synthesized, The zooming effect of the range can be obtained.

FIG. 1A is a block diagram for explaining a mobile terminal according to the present invention; FIG.
1B and 1C are conceptual diagrams illustrating an example of a mobile terminal according to the present invention in different directions.
FIG. 2A and FIG. 2B are exploded perspective views of a mobile terminal having a camera related to the present invention. FIG.
3 is an operation diagram showing movement in the direction D1 or D1 'of the first zooming unit.
4 is an operation diagram showing movement in the direction D2 or D2 'of the first zooming unit.
5 is an operation diagram showing movement in the direction D3 or D3 'of the first zooming unit.
6 is a conceptual diagram for explaining a camera control method according to an embodiment;
FIG. 7 is a conceptual diagram for explaining a camera control method according to another embodiment; FIG.
8 is a flowchart of a control method when a control command for shooting an image at a target magnification not included within a range of a predetermined reference magnification is applied.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like or similar elements are denoted by the same reference numerals, and redundant description thereof will be omitted. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

The mobile terminal described in this specification includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, a slate PC A tablet PC, an ultrabook, a wearable device such as a smartwatch, a smart glass, and a head mounted display (HMD). have.

However, it will be appreciated by those skilled in the art that the configuration according to the embodiments described herein may be applied to fixed terminals such as a digital TV, a desktop computer, a digital signage, and the like, will be.

1A to 1C are block diagrams for explaining a mobile terminal according to the present invention, and FIGS. 1B and 1C are conceptual diagrams showing an example of a mobile terminal according to the present invention in different directions.

The mobile terminal 100 includes a wireless communication unit 110, an input unit 120, a sensing unit 140, an output unit 150, an interface unit 160, a memory 170, a control unit 180, ), And the like. The components shown in FIG. 1A are not essential for implementing a mobile terminal, so that the mobile terminal described herein may have more or fewer components than the components listed above.

The wireless communication unit 110 may be connected between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and another mobile terminal 100 or between the mobile terminal 100 and the external server 100. [ Lt; RTI ID = 0.0 > wireless < / RTI > In addition, the wireless communication unit 110 may include one or more modules for connecting the mobile terminal 100 to one or more networks.

The wireless communication unit 110 may include at least one of a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short distance communication module 114, and a location information module 115 .

The input unit 120 includes a camera 121 or an image input unit for inputting a video signal, a microphone 122 for inputting an audio signal, an audio input unit, a user input unit 123 for receiving information from a user A touch key, a mechanical key, and the like). The voice data or image data collected by the input unit 120 may be analyzed and processed by a user's control command.

The sensing unit 140 may include at least one sensor for sensing at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information. For example, the sensing unit 140 may include a proximity sensor 141, an illumination sensor 142, a touch sensor, an acceleration sensor, a magnetic sensor, A G-sensor, a gyroscope sensor, a motion sensor, an RGB sensor, an infrared sensor, a finger scan sensor, an ultrasonic sensor, A microphone 226, a battery gauge, an environmental sensor (for example, a barometer, a hygrometer, a thermometer, a radiation detection sensor, A thermal sensor, a gas sensor, etc.), a chemical sensor (e.g., an electronic nose, a healthcare sensor, a biometric sensor, etc.). Meanwhile, the mobile terminal disclosed in the present specification can combine and utilize information sensed by at least two of the sensors.

The output unit 150 includes at least one of a display unit 151, an acoustic output unit 152, a haptic tip module 153, and a light output unit 154 to generate an output related to visual, auditory, can do. The display unit 151 may have a mutual layer structure with the touch sensor or may be integrally formed to realize a touch screen. The touch screen may function as a user input unit 123 that provides an input interface between the mobile terminal 100 and a user and may provide an output interface between the mobile terminal 100 and a user.

The interface unit 160 serves as a path to various types of external devices connected to the mobile terminal 100. The interface unit 160 is connected to a device having a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, And may include at least one of a port, an audio I / O port, a video I / O port, and an earphone port. In the mobile terminal 100, corresponding to the connection of the external device to the interface unit 160, it is possible to perform appropriate control related to the connected external device.

In addition, the memory 170 stores data supporting various functions of the mobile terminal 100. The memory 170 may store a plurality of application programs or applications running on the mobile terminal 100, data for operation of the mobile terminal 100, and commands. At least some of these applications may be downloaded from an external server via wireless communication. Also, at least a part of these application programs may exist on the mobile terminal 100 from the time of shipment for the basic functions (e.g., telephone call receiving function, message receiving function, and calling function) of the mobile terminal 100. Meanwhile, the application program may be stored in the memory 170, installed on the mobile terminal 100, and may be operated by the control unit 180 to perform the operation (or function) of the mobile terminal.

In addition to the operations related to the application program, the control unit 180 typically controls the overall operation of the mobile terminal 100. The control unit 180 may process or process signals, data, information, and the like input or output through the above-mentioned components, or may drive an application program stored in the memory 170 to provide or process appropriate information or functions to the user.

In addition, the controller 180 may control at least some of the components illustrated in FIG. 1A in order to drive an application program stored in the memory 170. FIG. In addition, the controller 180 may operate at least two of the components included in the mobile terminal 100 in combination with each other for driving the application program.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power to the components included in the mobile terminal 100. The power supply unit 190 includes a battery, which may be an internal battery or a replaceable battery.

At least some of the components may operate in cooperation with one another to implement a method of operation, control, or control of a mobile terminal according to various embodiments described below. In addition, the operation, control, or control method of the mobile terminal may be implemented on the mobile terminal by driving at least one application program stored in the memory 170. [

Hereinafter, the various components of the mobile terminal 100 will be described in detail with reference to FIG. 1A.

First, referring to the wireless communication unit 110, the broadcast receiving module 111 of the wireless communication unit 110 receives broadcast signals and / or broadcast-related information from an external broadcast management server through a broadcast channel. The broadcast channel may include a satellite channel and a terrestrial channel. Two or more broadcast receiving modules may be provided to the mobile terminal 100 for simultaneous broadcast reception or broadcast channel switching for at least two broadcast channels.

The mobile communication module 112 may be a mobile communication module or a mobile communication module such as a mobile communication module or a mobile communication module that uses technology standards or a communication method (e.g., Global System for Mobile communication (GSM), Code Division Multi Access (CDMA), Code Division Multi Access 2000 (Enhanced Voice-Data Optimized or Enhanced Voice-Data Only), Wideband CDMA (WCDMA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE) And an external terminal, or a server on a mobile communication network established according to a long term evolution (e. G., Long Term Evolution-Advanced).

The wireless signal may include various types of data depending on a voice call signal, a video call signal or a text / multimedia message transmission / reception.

The wireless Internet module 113 is a module for wireless Internet access, and may be built in or externally attached to the mobile terminal 100. The wireless Internet module 113 is configured to transmit and receive a wireless signal in a communication network according to wireless Internet technologies.

Wireless Internet technologies include, for example, wireless LAN (WLAN), wireless fidelity (Wi-Fi), wireless fidelity (Wi-Fi) Direct, DLNA (Digital Living Network Alliance), WiBro Interoperability for Microwave Access, High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE) and Long Term Evolution-Advanced (LTE-A) 113 transmit and receive data according to at least one wireless Internet technology, including Internet technologies not listed above.

The wireless Internet module 113 for performing a wireless Internet connection through the mobile communication network can be used for wireless Internet access by WiBro, HSDPA, HSUPA, GSM, CDMA, WCDMA, LTE or LTE- May be understood as a kind of the mobile communication module 112.

The short-range communication module 114 is for short-range communication, and includes Bluetooth ™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB) (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus) technology. The short-range communication module 114 is connected to the mobile terminal 100 and the wireless communication system through the wireless area networks, between the mobile terminal 100 and another mobile terminal 100, or between the mobile terminal 100 ) And the other mobile terminal 100 (or the external server). The short-range wireless communication network may be a short-range wireless personal area network.

Here, the other mobile terminal 100 may be a wearable device (e.g., a smartwatch, a smart glass, etc.) capable of interchanging data with the mobile terminal 100 according to the present invention (smart glass), HMD (head mounted display)). The short range communication module 114 may detect (or recognize) a wearable device capable of communicating with the mobile terminal 100 around the mobile terminal 100. [ If the detected wearable device is a device authenticated to communicate with the mobile terminal 100 according to the present invention, the control unit 180 may transmit at least a part of the data processed by the mobile terminal 100 to the short- 114 to the wearable device. Therefore, the user of the wearable device can use the data processed by the mobile terminal 100 through the wearable device. For example, according to this, when a telephone is received in the mobile terminal 100, the user performs a telephone conversation via the wearable device, or when a message is received in the mobile terminal 100, It is possible to check the message.

The position information module 115 is a module for obtaining the position (or current position) of the mobile terminal, and a representative example thereof is a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module. For example, when the mobile terminal utilizes the GPS module, it can acquire the position of the mobile terminal by using a signal transmitted from the GPS satellite. As another example, when the mobile terminal utilizes the Wi-Fi module, it can acquire the position of the mobile terminal based on information of a wireless access point (AP) that transmits or receives the wireless signal with the Wi-Fi module. Optionally, the location information module 115 may perform any of the other functions of the wireless communication unit 110 to obtain data relating to the location of the mobile terminal, in addition or alternatively. The location information module 115 is a module used to obtain the location (or current location) of the mobile terminal, and is not limited to a module that directly calculates or obtains the location of the mobile terminal.

Next, the input unit 120 is for inputting image information (or signal), audio information (or signal), data, or information input from a user. For inputting image information, Or a plurality of cameras 121 may be provided. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame may be displayed on the display unit 151 or stored in the memory 170. [ A plurality of cameras 121 provided in the mobile terminal 100 may be arranged to have a matrix structure and various angles or foci may be provided to the mobile terminal 100 through the camera 121 having the matrix structure A plurality of pieces of image information can be input. In addition, the plurality of cameras 121 may be arranged in a stereo structure to acquire a left image and a right image for realizing a stereoscopic image.

The microphone 122 processes the external acoustic signal into electrical voice data. The processed voice data can be utilized variously according to a function (or a running application program) being executed in the mobile terminal 100. Meanwhile, the microphone 122 may be implemented with various noise reduction algorithms for eliminating noise generated in receiving an external sound signal.

The user input unit 123 is for receiving information from a user and when the information is inputted through the user input unit 123, the control unit 180 can control the operation of the mobile terminal 100 to correspond to the input information . The user input unit 123 may include a mechanical input unit or a mechanical key such as a button located on a front or rear or side of the mobile terminal 100, a dome switch, a jog wheel, Jog switches, etc.) and touch-type input means. For example, the touch-type input means may comprise a virtual key, a soft key or a visual key displayed on the touch screen through software processing, And a touch key disposed on the touch panel. Meanwhile, the virtual key or the visual key can be displayed on a touch screen having various forms, for example, a graphic, a text, an icon, a video, As shown in FIG.

Meanwhile, the sensing unit 140 senses at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information, and generates a corresponding sensing signal. The control unit 180 may control the driving or operation of the mobile terminal 100 or may perform data processing, function or operation related to the application program installed in the mobile terminal 100 based on the sensing signal. Representative sensors among various sensors that may be included in the sensing unit 140 will be described in more detail.

First, the proximity sensor 141 refers to a sensor that detects the presence of an object approaching a predetermined detection surface, or the presence of an object in the vicinity of the detection surface, without mechanical contact by using electromagnetic force or infrared rays. The proximity sensor 141 may be disposed in the inner area of the mobile terminal or in proximity to the touch screen, which is covered by the touch screen.

Examples of the proximity sensor 141 include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. In the case where the touch screen is electrostatic, the proximity sensor 141 can be configured to detect the proximity of the object with a change of the electric field along the proximity of the object having conductivity. In this case, the touch screen (or touch sensor) itself may be classified as a proximity sensor.

On the other hand, for convenience of explanation, the act of recognizing that the object is located on the touch screen in proximity with no object touching the touch screen is referred to as "proximity touch & The act of actually touching an object on the screen is called a "contact touch. &Quot; The position at which the object is closely touched on the touch screen means a position where the object corresponds to the touch screen vertically when the object is touched. The proximity sensor 141 can detect a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, have. Meanwhile, the control unit 180 processes data (or information) corresponding to the proximity touch operation and the proximity touch pattern sensed through the proximity sensor 141 as described above, and further provides visual information corresponding to the processed data It can be output on the touch screen. Furthermore, the control unit 180 can control the mobile terminal 100 such that different operations or data (or information) are processed according to whether the touch to the same point on the touch screen is a proximity touch or a touch touch .

The touch sensor senses a touch (or touch input) applied to the touch screen (or the display unit 151) by using at least one of various touch methods such as a resistance film type, a capacitive type, an infrared type, an ultrasonic type, do.

For example, the touch sensor may be configured to convert a change in a pressure applied to a specific portion of the touch screen or a capacitance generated in a specific portion to an electrical input signal. The touch sensor may be configured to detect a position, an area, a pressure at the time of touch, a capacitance at the time of touch, and the like where a touch object touching the touch screen is touched on the touch sensor. Here, the touch object may be a finger, a touch pen, a stylus pen, a pointer, or the like as an object to which a touch is applied to the touch sensor.

Thus, when there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like. Here, the touch controller may be a separate component from the control unit 180, and may be the control unit 180 itself.

On the other hand, the control unit 180 may perform different controls or perform the same control according to the type of the touch object touching the touch screen (or a touch key provided on the touch screen). Whether to perform different controls or to perform the same control according to the type of the touch object may be determined according to the current state of the mobile terminal 100 or an application program being executed.

On the other hand, the touch sensors and the proximity sensors discussed above can be used independently or in combination to provide a short touch (touch), a long touch, a multi touch, a drag touch ), Flick touch, pinch-in touch, pinch-out touch, swipe touch, hovering touch, and the like. Touch can be sensed.

The ultrasonic sensor can recognize the position information of the object to be sensed by using ultrasonic waves. Meanwhile, the controller 180 can calculate the position of the wave generating source through the information sensed by the optical sensor and the plurality of ultrasonic sensors. The position of the wave source can be calculated using the fact that the light is much faster than the ultrasonic wave, that is, the time when the light reaches the optical sensor is much faster than the time the ultrasonic wave reaches the ultrasonic sensor. More specifically, the position of the wave generating source can be calculated using the time difference with the time when the ultrasonic wave reaches the reference signal.

The camera 121 includes at least one of a camera sensor (for example, a CCD, a CMOS, etc.), a photo sensor (or an image sensor), and a laser sensor.

The camera 121 and the laser sensor may be combined with each other to sense a touch of the sensing object with respect to the three-dimensional stereoscopic image. The photosensor can be laminated to the display element, which is adapted to scan the movement of the object to be detected proximate to the touch screen. More specifically, the photosensor mounts photo diodes and TRs (Transistors) in a row / column and scans the contents loaded on the photosensor using an electrical signal that varies according to the amount of light applied to the photo diode. That is, the photo sensor performs coordinate calculation of the object to be sensed according to the amount of change of light, and position information of the object to be sensed can be obtained through the calculation.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, the display unit 151 may display execution screen information of an application program driven by the mobile terminal 100 or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information .

Also, the display unit 151 may be configured as a stereoscopic display unit for displaying a stereoscopic image.

In the stereoscopic display unit, a three-dimensional display system such as a stereoscopic system (glasses system), an autostereoscopic system (no-glasses system), and a projection system (holographic system) can be applied.

The sound output unit 152 may output audio data received from the wireless communication unit 110 or stored in the memory 170 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output unit 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The audio output unit 152 may include a receiver, a speaker, a buzzer, and the like.

The haptic module 153 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 153 may be vibration. The intensity and pattern of the vibration generated in the haptic module 153 can be controlled by the user's selection or the setting of the control unit. For example, the haptic module 153 may synthesize and output different vibrations or sequentially output the vibrations.

In addition to vibration, the haptic module 153 may be configured to perform various functions such as a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or suction force of the air through the injection port or the suction port, a touch on the skin surface, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 153 can transmit the tactile effect through the direct contact, and the tactile effect can be felt by the user through the muscles of the finger or arm. The haptic module 153 may include two or more haptic modules 153 according to the configuration of the mobile terminal 100.

The light output unit 154 outputs a signal for notifying the occurrence of an event using the light of the light source of the mobile terminal 100. Examples of events that occur in the mobile terminal 100 may include message reception, call signal reception, missed call, alarm, schedule notification, email reception, information reception through an application, and the like.

The signal output from the light output unit 154 is implemented as the mobile terminal emits light of a single color or a plurality of colors to the front or rear surface. The signal output may be terminated by the mobile terminal detecting the event confirmation of the user.

The interface unit 160 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 160 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data in the mobile terminal 100 to an external device. For example, a port for connecting a device equipped with a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, an audio I / O port, a video I / O port, an earphone port, and the like may be included in the interface unit 160.

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM) A universal subscriber identity module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the interface unit 160. [

The interface unit 160 may be a path through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, And various command signals may be transmitted to the mobile terminal 100. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal 100 is correctly mounted on the cradle.

The memory 170 may store a program for the operation of the controller 180 and temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory 170 may store data on vibration and sound of various patterns outputted when a touch is input on the touch screen.

The memory 170 may be a flash memory type, a hard disk type, a solid state disk type, an SDD type (Silicon Disk Drive type), a multimedia card micro type ), Card type memory (e.g., SD or XD memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read memory, a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs the storage function of the memory 170 on the Internet.

Meanwhile, as described above, the control unit 180 controls the operations related to the application program and the general operation of the mobile terminal 100. [ For example, when the state of the mobile terminal meets a set condition, the control unit 180 can execute or release a lock state for restricting input of a user's control command to applications.

In addition, the control unit 180 performs control and processing related to voice communication, data communication, video call, or the like, or performs pattern recognition processing to recognize handwriting input or drawing input performed on the touch screen as characters and images, respectively . Further, the controller 180 may control any one or a plurality of the above-described components in order to implement various embodiments described below on the mobile terminal 100 according to the present invention.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components. The power supply unit 190 includes a battery, the battery may be an internal battery configured to be chargeable, and may be detachably coupled to the terminal body for charging or the like.

In addition, the power supply unit 190 may include a connection port, and the connection port may be configured as an example of an interface 160 through which an external charger for supplying power for charging the battery is electrically connected.

As another example, the power supply unit 190 may be configured to charge the battery in a wireless manner without using the connection port. In this case, the power supply unit 190 may use at least one of an inductive coupling method based on a magnetic induction phenomenon from an external wireless power transmission apparatus and a magnetic resonance coupling method based on an electromagnetic resonance phenomenon Power can be delivered.

In the following, various embodiments may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

Referring to FIGS. 1B and 1C, the disclosed mobile terminal 100 includes a bar-shaped terminal body. However, the present invention is not limited thereto and can be applied to various structures such as a folder type, a flip type, a slide type, a swing type, and a swivel type in which a watch type, a clip type, a glass type or two or more bodies are relatively movably coupled . A description of a particular type of mobile terminal, although relevant to a particular type of mobile terminal, is generally applicable to other types of mobile terminals.

Here, the terminal body can be understood as a concept of referring to the mobile terminal 100 as at least one aggregate.

The mobile terminal 100 includes a case (for example, a frame, a housing, a cover, and the like) that forms an appearance. As shown, the mobile terminal 100 may include a front case 101 and a rear case 102. Various electronic components are disposed in the inner space formed by the combination of the front case 101 and the rear case 102. At least one middle case may be additionally disposed between the front case 101 and the rear case 102.

A display unit 151 is disposed on a front surface of the terminal body to output information. The window 151a of the display unit 151 may be mounted on the front case 101 to form a front surface of the terminal body together with the front case 101. [

In some cases, electronic components may also be mounted on the rear case 102. Electronic parts that can be mounted on the rear case 102 include detachable batteries, an identification module, a memory card, and the like. In this case, a rear cover 103 for covering the mounted electronic components can be detachably coupled to the rear case 102. Therefore, when the rear cover 103 is separated from the rear case 102, the electronic parts mounted on the rear case 102 are exposed to the outside.

As shown, when the rear cover 103 is coupled to the rear case 102, a side portion of the rear case 102 can be exposed. In some cases, the rear case 102 may be completely covered by the rear cover 103 during the engagement. Meanwhile, the rear cover 103 may be provided with an opening for exposing the camera 121b and the sound output unit 152b to the outside.

These cases 101, 102, and 103 may be formed by injection molding of synthetic resin or may be formed of metal such as stainless steel (STS), aluminum (Al), titanium (Ti), or the like.

The mobile terminal 100 may be configured such that one case provides the internal space, unlike the above example in which a plurality of cases provide an internal space for accommodating various electronic components. In this case, a unibody mobile terminal 100 in which synthetic resin or metal is connected from the side to the rear side can be realized.

Meanwhile, the mobile terminal 100 may include a waterproof unit (not shown) for preventing water from penetrating into the terminal body. For example, the waterproof portion is provided between the window 151a and the front case 101, between the front case 101 and the rear case 102, or between the rear case 102 and the rear cover 103, And a waterproof member for sealing the inside space of the oven.

The mobile terminal 100 is provided with a display unit 151, first and second sound output units 152a and 152b, a proximity sensor 141, an illuminance sensor 142, a light output unit 154, Cameras 121a and 121b, first and second operation units 123a and 123b, a microphone 122, an interface unit 160, and the like.

1B and 1C, a display unit 151, a first sound output unit 152a, a proximity sensor 141, an illuminance sensor 142, an optical output unit (not shown) A second operation unit 123b, a microphone 122 and an interface unit 160 are disposed on a side surface of the terminal body, And a mobile terminal 100 having a second sound output unit 152b and a second camera 121b disposed on a rear surface thereof.

However, these configurations are not limited to this arrangement. These configurations may be excluded or replaced as needed, or placed on different planes. For example, the first operation unit 123a may not be provided on the front surface of the terminal body, and the second sound output unit 152b may be provided on the side surface of the terminal body rather than the rear surface of the terminal body.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, the display unit 151 may display execution screen information of an application program driven by the mobile terminal 100 or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information .

The display unit 151 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display display, a 3D display, and an e-ink display.

In addition, the display unit 151 may exist in two or more depending on the embodiment of the mobile terminal 100. In this case, the mobile terminal 100 may be provided with a plurality of display portions spaced apart from each other or disposed integrally with one another, or may be disposed on different surfaces, respectively.

The display unit 151 may include a touch sensor that senses a touch with respect to the display unit 151 so that a control command can be received by a touch method. When a touch is made to the display unit 151, the touch sensor senses the touch, and the control unit 180 generates a control command corresponding to the touch based on the touch. The content input by the touch method may be a letter or a number, an instruction in various modes, a menu item which can be designated, and the like.

The touch sensor may be a film having a touch pattern and disposed between the window 151a and a display (not shown) on the rear surface of the window 151a, or may be a metal wire . Alternatively, the touch sensor may be formed integrally with the display. For example, the touch sensor may be disposed on a substrate of the display or inside the display.

In this way, the display unit 151 can form a touch screen together with the touch sensor. In this case, the touch screen can function as a user input unit 123 (see FIG. 1A). In some cases, the touch screen may replace at least some functions of the first operation unit 123a.

The first sound output unit 152a may be implemented as a receiver for transmitting a call sound to a user's ear and the second sound output unit 152b may be implemented as a loud speaker for outputting various alarm sounds or multimedia playback sounds. ). ≪ / RTI >

The window 151a of the display unit 151 may be provided with an acoustic hole for emitting the sound generated from the first acoustic output unit 152a. However, the present invention is not limited to this, and the sound may be configured to be emitted along an assembly gap (for example, a gap between the window 151a and the front case 101) between the structures. In this case, the appearance of the mobile terminal 100 can be made more simple because the hole formed independently for the apparent acoustic output is hidden or hidden.

The optical output unit 154 is configured to output light for notifying the occurrence of an event. Examples of the event include a message reception, a call signal reception, a missed call, an alarm, a schedule notification, an email reception, and reception of information through an application. The control unit 180 may control the light output unit 154 to terminate the light output when the event confirmation of the user is detected.

The first camera 121a processes an image frame of a still image or a moving image obtained by the image sensor in the photographing mode or the video communication mode. The processed image frame can be displayed on the display unit 151 and can be stored in the memory 170. [

The first and second operation units 123a and 123b may be collectively referred to as a manipulating portion as an example of a user input unit 123 operated to receive a command for controlling the operation of the mobile terminal 100 have. The first and second operation units 123a and 123b can be employed in any manner as long as the user is in a tactile manner such as touch, push, scroll, or the like. In addition, the first and second operation units 123a and 123b may be employed in a manner that the user operates the apparatus without touching the user through a proximity touch, a hovering touch, or the like.

In this figure, the first operation unit 123a is a touch key, but the present invention is not limited thereto. For example, the first operation unit 123a may be a mechanical key or a combination of a touch key and a touch key.

The contents input by the first and second operation units 123a and 123b can be variously set. For example, the first operation unit 123a receives a command such as a menu, a home key, a cancellation, a search, and the like, and the second operation unit 123b receives a command from the first or second sound output unit 152a or 152b The size of the sound, and the change of the display unit 151 to the touch recognition mode.

On the other hand, a rear input unit (not shown) may be provided on the rear surface of the terminal body as another example of the user input unit 123. The rear input unit is operated to receive a command for controlling the operation of the mobile terminal 100, and input contents may be variously set. For example, commands such as power on / off, start, end, scrolling, and the like, the size adjustment of the sound output from the first and second sound output units 152a and 152b, And the like can be inputted. The rear input unit may be implemented as a touch input, a push input, or a combination thereof.

The rear input unit may be disposed so as to overlap with the front display unit 151 in the thickness direction of the terminal body. For example, the rear input unit may be disposed at the rear upper end of the terminal body such that when the user holds the terminal body with one hand, the rear input unit can be easily operated using the index finger. However, the present invention is not limited thereto, and the position of the rear input unit may be changed.

When a rear input unit is provided on the rear surface of the terminal body, a new type of user interface using the rear input unit can be realized. When the first operation unit 123a is not disposed on the front surface of the terminal body in place of at least a part of the functions of the first operation unit 123a provided on the front surface of the terminal body, The display unit 151 may be configured as a larger screen.

Meanwhile, the mobile terminal 100 may be provided with a fingerprint recognition sensor for recognizing the fingerprint of the user, and the controller 180 may use the fingerprint information sensed through the fingerprint recognition sensor as authentication means. The fingerprint recognition sensor may be embedded in the display unit 151 or the user input unit 123.

The microphone 122 is configured to receive the user's voice, other sounds, and the like. The microphone 122 may be provided at a plurality of locations to receive stereophonic sound.

The interface unit 160 is a path through which the mobile terminal 100 can be connected to an external device. For example, the interface unit 160 may include a connection terminal for connection with another device (for example, an earphone or an external speaker), a port for short-range communication (for example, an infrared port (IrDA Port), a Bluetooth port A wireless LAN port, or the like), or a power supply terminal for supplying power to the mobile terminal 100. The interface unit 160 may be implemented as a socket for receiving an external card such as a SIM (Subscriber Identification Module) or a UIM (User Identity Module) or a memory card for storing information.

And a second camera 121b may be disposed on a rear surface of the terminal body. In this case, the second camera 121b has a photographing direction which is substantially opposite to that of the first camera 121a.

The second camera 121b may include a plurality of lenses arranged along at least one line. The plurality of lenses may be arranged in a matrix form. Such a camera can be named an array camera. When the second camera 121b is configured as an array camera, images can be taken in various ways using a plurality of lenses, and a better quality image can be obtained.

The flash 124 may be disposed adjacent to the second camera 121b. The flash 124 shines light toward the subject when the subject is photographed by the second camera 121b.

And a second sound output unit 152b may be additionally disposed in the terminal body. The second sound output unit 152b may implement a stereo function together with the first sound output unit 152a and may be used for implementing a speakerphone mode in a call.

The terminal body may be provided with at least one antenna for wireless communication. The antenna may be embedded in the terminal body or formed in the case. For example, an antenna constituting a part of the broadcast receiving module 111 (see FIG. 1A) may be configured to be able to be drawn out from the terminal body. Alternatively, the antenna may be formed in a film type and attached to the inner surface of the rear cover 103, or a case including a conductive material may be configured to function as an antenna.

The terminal body is provided with a power supply unit 190 (see FIG. 1A) for supplying power to the mobile terminal 100. The power supply unit 190 may include a battery 191 built in the terminal body or detachable from the outside of the terminal body.

The battery 191 may be configured to receive power through a power cable connected to the interface unit 160. In addition, the battery 191 may be configured to be wirelessly chargeable through a wireless charger. The wireless charging may be implemented by a magnetic induction method or a resonance method (magnetic resonance method).

The rear cover 103 is configured to be coupled to the rear case 102 so as to cover the battery 191 to restrict the release of the battery 191 and to protect the battery 191 from external impact and foreign matter . When the battery 191 is detachably attached to the terminal body, the rear cover 103 may be detachably coupled to the rear case 102.

The mobile terminal 100 may be provided with an accessory that protects the appearance or supports or expands the function of the mobile terminal 100. [ One example of such an accessory is a cover or pouch that covers or accommodates at least one side of the mobile terminal 100. [ The cover or pouch may be configured to interlock with the display unit 151 to expand the function of the mobile terminal 100. Another example of an accessory is a touch pen for supplementing or extending a touch input to the touch screen.

2A and 2B are exploded perspective views of a mobile terminal according to the present invention.

2A and 2B are not essential, a mobile terminal having more or fewer components may be implemented.

The mobile terminal according to an embodiment of the present invention includes a front case 101, a rear case 102 and a camera 121 provided in a space formed between the front case 101 and the rear case 102. [

The camera 121 includes a first zooming unit 210, a fixed lens unit 220, a second zooming unit 230, a diaphragm unit 240, a focusing unit 250, and a zooming unit 250 sequentially arranged along the optical axis OA. And an image sensor 260. The light passes through the first zooming unit 210, the fixed lens unit 220, the second zooming unit 230, the diaphragm unit 240, and the focus unit 250 to reach the image sensor 260. Hereinafter, each of the components will be described in detail.

The first zooming unit 210 has a plurality of zoom lenses 210a, 210b, and 210c having different magnifications. The zoom lenses 210a, 210b, and 210c may have different focal lengths, thereby realizing different magnifications. Specifically, the first zooming unit 210 includes first and second zoom lenses 210 and 210 having a shape of one of a biconvex lens having a positive refractive power, a plano-convex lens and a positive meniscus, And third zoom lenses 210a, 210b, and 210c. Meanwhile, in this embodiment, the first zooming unit 210 has three zoom lenses, but the number of the zoom lenses may be changed as needed.

The fixed lens unit 220 includes a first lens L1, a second lens L2, and a prism P disposed therebetween. Specifically, the first lens L1 is formed such that light passing through the first zooming unit 210 is incident on the prism P, and the prism is formed so that the optical path is switched to about 90 degrees. Further, the second lens L2 is formed such that light having passed through the prism P is incident on the second zooming unit 230.

On the other hand, it is obvious that the prism can be replaced with a mirror or the like as means for converting an optical path.

The second zooming unit 230 also has a plurality of zoom lenses 230a, 230b, and 230c having different magnifications. They can also have different magnifications by having different focal lengths. The magnification of the zoom lenses of the second zooming unit 230 may be equal to or different from the magnification of the zoom lenses of the first zooming unit 210. Since the second zooming unit 230 assists the first zooming unit 210, the second zooming unit 230 can be omitted, and the zoom lenses of the second zooming unit 230 can be omitted from the first zooming- The zoom lenses of the second zooming unit 230 are hereinafter referred to as auxiliary zoom lenses in order to distinguish them from the zoom lenses of the second zooming unit 210. [

The driving unit (not shown) includes first and second driving units, which are connected to the first and second zooming units 210 and 230, respectively, to move the first and second zooming units 210 and 230. If the second zooming unit 230 is omitted, the second driving unit may be omitted. When both of the first and second zooming units 210 and 230 are present, the first and second driving units can operate in conjunction with each other or independently.

The diaphragm portion 240 has a plurality of diaphragms having different diaphragm values (F values). The plurality of diaphragms are arranged in a direction intersecting with the optical axis direction and are formed to be movable in a direction intersecting with the optical axis direction. That is, the diaphragm 240 is connected to the third driving unit to receive the driving force. The third driving unit may be formed separately from the first and second driving units, or may be configured to be driven to be interlocked with at least one of the first and second driving units.

In the present embodiment, it is assumed that the diaphragm 240 includes a plurality of diaphragms having different diaphragm values. However, the diaphragm 240 may be a stationary diaphragm in which one diaphragm is fixed and a continuous diaphragm in which the diaphragm value is continuously variable.

2A, the diaphragm 240 is disposed behind the first and second zooming units 210 and 230, but the position of the diaphragm 240 is not limited thereto. That is, the diaphragm 240 may be disposed between the first zooming unit 210 and the fixed lens unit 220.

The focus unit 250 is provided with an image sensor 260 such that light passes through the first and second zooming units 210 and 230, the fixed lens unit 220 and the like, As shown in Fig. The focus portion 250 may be formed without a separate driving portion using a liquid lens.

The image sensor 260 may be implemented as a semiconductor chip mounted on a sensor substrate. The semiconductor chip may be implemented by a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS) device that converts light into electric charges to obtain an image.

2B, a prism P2 may be additionally disposed between the focus unit 250 and the image sensor 260. In addition, As the image sensor 260 is disposed side by side with the focus portion 250 in the terminal thickness direction, it is possible to prevent the camera volume from increasing excessively in the longitudinal direction of the terminal.

It is obvious that the prism P2 can be replaced with a mirror or the like as means for changing the optical path by about 90 degrees.

2A and 2B, the first and second zooming units 210 and 230 are disposed on the front and rear sides of the fixed lens unit 220, respectively. However, both the first and second zooming units 210 and 230 It may be disposed behind the fixed lens unit 220. [

(LP), an infrared cut filter, and a cover glass (CG) of a CCD are disposed between the image sensor 260 and the focus unit 250, May be disposed.

An optical image stabilizer (OIS) may be disposed between the diaphragm 240 and the image sensor 260 in front of the first zooming unit 210, not shown in the figure.

Meanwhile, the camera is controlled by the controller 180 to perform zooming in a range of a predetermined reference magnification. For example, the control unit 180 causes the first and second driving units to move the first and second zooming units 210 and 230 to perform zooming.

That is, the range of the reference magnification that the camera can implement is determined by the magnifications of the zoom lenses of the first and second zooming units 210 and 230. Within the range of the preset reference magnification, the target magnification can be input through the user input unit.

In the camera according to the present embodiment, the zoom lenses of the first and second zooming units 210 and 230 move in the direction crossing the optical axis OA. Hereinafter, characteristics of the movement of the first zooming unit 210 will be described.

3 to 5 are conceptual diagrams for explaining a feature of the movement of the first zooming unit 210 according to the present embodiment.

3 shows an embodiment in which the first zooming unit 210 moves in the direction D1 or the direction D1 'which is the opposite direction of the direction crossing the optical axis direction. Here, the directions of D1 and D1 'may be one direction parallel to the width direction of the mobile terminal and the opposite direction with reference to FIG. 2A.

4, the first zooming unit 210 moves in the direction D2 ', which is the direction opposite to the direction of the optical axis, or in the direction opposite to the direction D2'. Here, the directions D2 and D2 'may be one direction parallel to the thickness direction of the mobile terminal and the opposite direction with reference to FIG. 2A.

5, an embodiment in which the first zooming unit 210 moves in the direction D3 'or the direction opposite to the direction in which the first zooming unit 210 intersects the optical axis direction moves in the direction D3'. Here, the direction D3 or D3 'may be clockwise or counterclockwise on a plane perpendicular to the optical axis.

3 to 5, various embodiments related to the movement of the first zooming unit 210 will be described. Hereinafter, based on the embodiment shown in FIG. 3, the movement of the first zooming unit 210 will be described in more detail Explain.

In addition, the first, second, and third zoom lenses 210a, 210b, and 210c are arranged in a line on the frame 211 at predetermined intervals. At this time, the first driving unit is connected to the frame 211 to move the frame 211 in the direction D1 or D1 ', thereby moving the first, second, and third zoom lenses 210a, 210b, and 210c have.

Although not specifically shown in the drawing, the first driving unit may include a driving motor and a linear motion member.

That is, the drive motor receives power from the battery and operates so that the drive shaft of the drive motor rotates. The rotation of the drive shaft is converted into a linear reciprocating motion. To this end, the linear motion member is connected to the drive shaft of the drive motor. More specifically, a motion converting mechanism is disposed between the drive shaft and the linear motion member, whereby the linear motion member can perform a linear reciprocating motion.

The plurality of zoom lenses 210a, 210b, and 210c may move along with the movement of the linear motion member by connecting the linear motion member to the frame 211. [

The control unit 180 controls the driving unit such that any one of the plurality of zoom lenses 210a, 210b, and 210c is aligned on the optical axis. Fig. 3 shows a case in which the central axes of the first, second and third zoom lenses 210a, 210b and 210c are arranged coincident with the optical axis. Only the zoom lens whose center axis is aligned with the optical axis passes the light, and the light does not pass through the remaining zoom lens. For example, light passes through the first zoom lens 210a and light does not pass through the remaining zoom lenses (a_.

The control unit 180 sets the first zooming unit 210 to D1 or D1 'so that one of the first to third zoom lenses 210a, 210b, and 210c is aligned on the optical axis according to the target magnification input through the user input unit, Direction. Hereinafter, a control method of changing the zoom lens arranged on the optical axis based on the target magnification will be described.

6 is a conceptual diagram for explaining a camera control method according to an embodiment.

Referring to FIG. 6 together with FIG. 3, the first, second, and third zoom lenses 210a, 210b, and 210c may be arranged in order of increasing magnification. In general, when the first, second, and third zoom lenses 210a, 210b, and 210c are a single lens, the magnification of the lens increases as the thickness of the center of the lens increases. A plano-convex lens, a positive meniscus lens, and a biconvex lens are sequentially shown in order of the first, second, and third zoom lenses 210a, 210b, and 210c, Is not limited to this. Also, the first, second, and third zoom lenses 210a, 210b, and 210c may be arranged in decreasing magnification order, or may be arranged in the center as the zoom lens is frequently used.

The control unit 180 performs zooming in a range of a predetermined reference magnification by a user's control command or the like. The user's control command can be applied through the input of the target magnification at the user input.

In this case, when the target magnification is low, the controller 180 can control the first zoom lens 210a to be aligned on the optical axis. As the target magnification increases, the second and third zoom lenses 210b and 210c sequentially As shown in FIG. For example, when the first zoom lens 210a is aligned on the optical axis, the camera performs zooming with a zoom magnification of about twice, and when the second and third zoom lenses 210b and 210c are aligned on the optical axis , The camera performs zooming with a zoom magnification of about 3 times and 5 times.

At this time, an image to be photographed by the camera can be displayed in advance through the display unit 151 formed on the mobile terminal, and the user can input an appropriate target magnification while viewing the image.

The range of zooming performed by the camera can be further extended by the addition of the second zooming unit 230, which will be described below.

7 is a conceptual diagram for explaining a camera control method according to another embodiment.

Referring to FIG. 7, only the zoom lens and the auxiliary zoom lens of the first and second zooming units 210 and 230 are shown while all other components are omitted. The auxiliary zoom lenses 230a, 230b and 230c of the second zooming unit 230 may be three lenses having the same magnification as that of the zoom lenses 210a, 210b and 210c of the first zooming unit 210. [

More specifically, in the first zooming unit 210, the second zoom lens 210b is aligned on the optical axis, and in the second zooming unit 230, the first auxiliary zoom lens 230a is aligned on the optical axis ( a). In this case, as the image is magnified twice in the second zoom lens 210b and the first auxiliary zoom lens 230a, the camera can perform zooming with a zoom magnification of about 6 times.

In addition, in the first zooming unit 210, the second zoom lens 210b is aligned on the optical axis, and in the second zooming unit 230, the second auxiliary zoom lens 230b can be aligned on the optical axis (b). In this case, as the image is magnified twice in the second zoom lens 210b and the second auxiliary zoom lens 230b, the camera can perform zooming with a zoom magnification of about 9 times.

Similarly, in the first zooming unit 210, the second zoom lens 210b is aligned on the optical axis, and in the second zooming unit 230, the third auxiliary zoom lens 230a can be aligned on the optical axis (c). In this case, as the image is magnified twice in the second zoom lens 210b and the third auxiliary zoom lens 230a, the camera can perform zooming with a zoom magnification of about 15 times.

7 shows only the case where the second zoom lens 210b is aligned on the optical axis in the first zooming unit 210. However, according to the target magnification, the first zooming lens 210a of the first zooming unit 210, RTI ID = 0.0 > 210c < / RTI > That is, when the first and second zooming units 210 and 230 each include three zoom lenses and three auxiliary zoom lenses, the camera can implement nine discontinuous reference magnifications in total.

According to the present embodiment, the camera performs zooming within a range of a reference magnification preset by the first and second zooming units 210 and 230. [ Hereinafter, a control method in the case where a control command for photographing an image at a target magnification that is not included within the range of the preset reference magnification is applied will be described.

FIG. 8 shows a flowchart of a control method when a control command for shooting an image at a target magnification not included in a range of a predetermined reference magnification is applied.

The control unit 180 obtains a first image of the object at a first reference magnification that is closest to the target magnification and smaller than the target magnification within a predetermined reference magnification (S10).

For example, when the target magnification is four times, the subject is photographed at three times magnification. More specifically, when the zoom magnification of the camera set as described above is about three times or five times, the first image of the subject is obtained first with the triple magnification as the first reference magnification.

In addition, the controller 180 acquires a second image of the object at a second reference magnification that is closest to the target magnification and is larger than the target magnification within a predetermined reference magnification (S11). For example, take a subject at 5x magnification. More specifically, when the zoom magnification of the camera set as described above is about 3 times and 5 times, it is possible to obtain the first image of the subject at the fifth magnification as the second reference magnification.

The control unit 180 generates a third image up scaled from the first image S12 and generates a fourth image downscaled from the second image S13.

Thereafter, the controller 180 combines the third and fourth images to form an image photographed at the fourfold magnification (S14).

According to the present embodiment, even if the target magnification is not included in the range of the predetermined reference magnification, the camera can obtain the effect of performing zooming in a range of various magnifications by the control method.

The foregoing detailed description should not be construed in all aspects as limiting and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

Claims (10)

A terminal body having a control unit; And
And a camera provided on the terminal body,
The camera comprises:
A zooming unit having a plurality of zoom lenses having different magnifications;
And a driving unit connected to the zooming unit to move the plurality of zoom lenses so that any one of the plurality of zooming lenses is aligned on an optical axis,
Wherein the control unit controls the driving unit to perform zooming in a range of a predetermined reference magnification by the movement of the plurality of zoom lenses. The method according to claim 1,
Wherein the zoom lenses are disposed at predetermined intervals on the same plane and are moved in a direction intersecting with an optical axis direction. The method according to claim 1,
The driving unit includes:
A drive motor; And
And a linear motion member engaged at least in part with the drive motor and reciprocating in linear motion during rotation of the drive motor,
Wherein the plurality of zoom lenses move in conjunction with the linear motion member. The method according to claim 1,
Wherein the zooming unit includes first and second zooming units,
The first and second zooming brims each include zoom lenses and auxiliary zoom lenses,
Wherein the first and second zooming units are disposed elsewhere on the optical axis,
Wherein the controller controls the driving unit such that the zoom lens and the auxiliary zoom lens capable of realizing a predetermined reference magnification by multiplying the magnifications of the zoom lenses and the auxiliary zoom lenses are aligned on the optical axis. 5. The method of claim 4,
The driving unit may include first and second driving units,
Wherein the first and second driving units move the zoom lenses and the auxiliary zoom lenses, respectively. The method according to claim 1,
A diaphragm having a plurality of diaphragms having different diaphragm values; And
Further comprising a third driver coupled to at least a portion of the plurality of diaphragms to move the plurality of diaphragms,
Wherein the controller controls the third driver to align the diaphragm having the diaphragm value corresponding to the predetermined target diaphragm value on the optical axis. The method according to claim 6,
Wherein the diaphragms are arranged at predetermined intervals on the same plane,
Wherein the diaphragms are moved in a direction intersecting with an optical axis direction. The method according to claim 1,
Wherein the predetermined range of the reference magnification includes a plurality of discontinuous reference magnifications, and the zoom lens having a magnification corresponding to the reference magnification is aligned on the optical axis. The method according to claim 1,
When a control command for photographing a subject at a target magnification not included in the range of the predetermined reference magnification is applied,
Obtaining a first image of the subject at a first reference magnification that is less than the target magnification;
Obtaining a second image at a second reference magnification that is greater than the target magnification;
Upscaling the first image to form a third image;
Downscaling the second image to form a fourth image; And
And synthesizing the third and fourth images. A camera for imaging a subject, the camera comprising:
A zooming unit having a plurality of zoom lenses having different magnifications;
A driving unit connected to the zooming unit to move the plurality of zoom lenses such that any one of the plurality of zooming lenses is aligned on an optical axis; And
And a controller for controlling the driving unit so that the camera performs zooming in a range of a predetermined reference magnification by movement of the plurality of zoom lenses.

Images