WO2022203192A1 - 공통 홀을 통해 조명 기능 및 광원 감지 기능을 동시에 수행 가능한 장치 - Google Patents
공통 홀을 통해 조명 기능 및 광원 감지 기능을 동시에 수행 가능한 장치 Download PDFInfo
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- light receiving
- light
- receiving elements
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- light source
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- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/03—Combinations of cameras with lighting apparatus; Flash units
- G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
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Definitions
- the following disclosure relates to a device capable of simultaneously performing an illumination function and a light source sensing function through a common hall.
- the image sensor since the image sensor is implemented to reproduce the reflected light of a given color temperature as it is, it cannot actively apply the color temperature of the light source to reflect it.
- the white color detected by the image sensor changes as the light source changes. For example, a white object appears red in a light source having a low color temperature, and appears blue in a light source having a high color temperature.
- AVB auto white balance
- the automatic white balance processing method is performed by estimating the degree of change due to a light source from an image obtained from an image sensor, and determining a color gain for each color of the image sensor to compensate for this.
- the maximum RGB method that estimates white based on the maximum RGB (red, green, blue) value in the input image, determines the average RGB value of the input color image as gray
- a gray world technique for estimating a reference white using gray and a method for estimating a reference white using a neural network are known.
- ALS ambient light sensor
- the automatic white balance accuracy can be improved by using an external sensor. For example, knowing the proportion of the infrared component in the spectrum makes it possible to distinguish light sources. If the characteristics of the light source are understood, it is possible to determine whether the photographing environment of the photographer is indoors or outdoors by determining the ratio of the infrared component as an automatic white balance index value.
- An external sensor may determine an automatic white balance index value.
- the automatic white balance function of the camera application When the automatic white balance function of the camera application is operated, it is possible to instantaneously determine whether the current location is indoors or outdoors by using the automatic white balance index value.
- the automatic white balance algorithm recognizes the color of the object as the color of the light source and color distortion may occur.
- the camera application may distinguish indoors and outdoors by using an automatic white balance index value obtained through an external sensor. For example, a camera application can differentiate between sunlight and artificial light sources.
- the cover has a flash hole that assists in irradiating light from the light emitting chip in charge of the flash to the outside.
- the flash hole is provided in parallel with the light emitting chip.
- the central axis of the flash hole is aligned with the central axis (optical axis) of the light emitting chip as much as possible to ensure maximum symmetry of flash light distribution performance.
- the external sensor is disposed to be spaced apart from the central axis of the flash hole by a predetermined distance, and may receive light through the flash hole. In this case, the angle of view of the light irradiated to the outside from the light emitting chip does not match the angle of view of the external sensor, and light source information of the external sensor in a specific direction may not be detected.
- an apparatus for detecting light source characteristics capable of improving light source detection capability is provided.
- an apparatus capable of simultaneously performing a lighting function and a light source detection function through a common hole may include a cover 410 including a common hole 413; a main condensing lens 420 connected to the cover 410 and covering the common hole 413; a printed circuit board 430 provided inside the cover 410; a flash 440 disposed on the printed circuit board 430 at a position parallel to the central axis C of the common hole 413 and irradiating light to the outside through the common hole 413; and a plurality of light receiving elements 451 and 452 disposed on the printed circuit board 430 and symmetrically positioned about the flash 440 .
- an apparatus capable of simultaneously performing a lighting function and a light source detection function through a common hole may include a printed circuit board 430 disposed in the cover 410; a flash 440 disposed on the printed circuit board 430; and a plurality of light receiving elements 451 and 452 disposed on the printed circuit board 430 , symmetrically positioned about the flash 440 , and receiving light through the common hole 413 . .
- a device capable of simultaneously performing a lighting function and a light source detection function through a common hole, a cover 410 including a common hole 413; a main condensing lens 420 connected to the cover 410 and covering the common hole 413; a printed circuit board 530 provided inside the cover 410; a flash 540 disposed on the printed circuit board 530 at a position parallel to the central axis C of the common hole 413 and irradiating light to the outside through the common hole 413; a plurality of first light receiving elements 551 provided at positions spaced apart from the flash 540 in a first direction D1; a plurality of second light receiving elements 552 provided at positions spaced apart from the flash 540 in a second direction D2 opposite to the first direction D1; and a plurality of filters 560 covering half of each of the plurality of first and second light receiving elements 551 and 552 and allowing light of a visible ray band to pass therethrough.
- the light source characteristic sensing apparatus receives light by using a plurality of photodiodes symmetrically provided with respect to the light emitting chip, so that the flash hole is centered on the flash hole without providing a separate additional hole for the external sensor. can have a symmetrical angle of view.
- the light source characteristic sensing apparatus may determine the position and information of the light source.
- FIG. 1 is a block diagram of an electronic device in a network environment according to various embodiments of the present disclosure
- FIG. 2 is a block diagram illustrating a camera module according to various embodiments.
- FIG. 3 is a block diagram illustrating a configuration of an image processing apparatus according to various embodiments of the present disclosure
- FIG. 4A is a rear view illustrating a rear surface of a device capable of simultaneously performing an illumination function and a light source sensing function (hereinafter, referred to as a “light source sensing device”) through a common hole according to various embodiments of the present disclosure;
- FIG. 4B is a cross-sectional view taken along the cut line I-I in FIG. 4A.
- 4C is a diagram schematically illustrating a light receiving area of a plurality of light receiving elements according to various embodiments of the present disclosure
- 5A is a plan view schematically illustrating a printed circuit board, a flash, and a plurality of light receiving devices according to various embodiments of the present disclosure
- 5B is a cross-sectional view taken along line II-II of FIG. 5A.
- 5C is a block diagram of an apparatus for detecting a light source according to various embodiments of the present disclosure.
- 6A is a plan view of a printed circuit board, a flash, and a plurality of light receiving elements according to various embodiments of the present disclosure
- 6B is a diagram schematically illustrating a light receiving area of a plurality of light receiving elements according to various embodiments of the present disclosure
- FIG. 7 to 9 are plan views of a printed circuit board, a flash, and a plurality of light receiving elements according to various embodiments of the present disclosure
- 10A is a plan view of a printed circuit board, a flash, and a plurality of light receiving elements according to various embodiments of the present disclosure
- 10B is a cross-sectional view taken along line III-III of FIG. 10A.
- 10C is a cross-sectional view taken along line IV-IV of FIG. 10A.
- FIG. 11 is a cross-sectional view of an apparatus for detecting a light source according to various embodiments of the present disclosure
- 12A is a plan view of a printed circuit board, a flash, and a plurality of light receiving elements according to various embodiments of the present disclosure
- FIG. 12B is a cross-sectional view of a light source sensing device according to various embodiments of the present disclosure.
- FIG. 13 is a plan view of a printed circuit board, a flash, and a plurality of light receiving elements according to various embodiments of the present disclosure
- FIG. 14 is a plan view schematically illustrating a sub condensing lens, a plurality of lenses, and a plurality of light receiving elements according to various embodiments of the present disclosure
- 15 is a cross-sectional view of a printed circuit board, a flash, and a plurality of light receiving elements according to various embodiments of the present disclosure
- FIG. 1 is a block diagram of an electronic device 101 in a network environment 100 according to various embodiments of the present disclosure.
- an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or a second network 199 . It may communicate with at least one of the electronic device 104 and the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 .
- a first network 198 eg, a short-range wireless communication network
- a second network 199 e.g., a second network 199
- the electronic device 101 may communicate with the electronic device 104 through the server 108 .
- the electronic device 101 includes a processor 120 , a memory 130 , an input module 150 , a sound output module 155 , a display module 160 , an audio module 170 , and a sensor module ( 176), interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196 , or an antenna module 197 .
- at least one of these components eg, the connection terminal 178
- some of these components are integrated into one component (eg, display module 160 ). can be
- the processor 120 for example, executes software (eg, a program 140) to execute at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120. It can control and perform various data processing or operations. According to an embodiment, as at least part of data processing or operation, the processor 120 stores a command or data received from another component (eg, the sensor module 176 or the communication module 190 ) into the volatile memory 132 . may be stored in , process commands or data stored in the volatile memory 132 , and store the result data in the non-volatile memory 134 .
- software eg, a program 140
- the processor 120 stores a command or data received from another component (eg, the sensor module 176 or the communication module 190 ) into the volatile memory 132 .
- the processor 120 stores a command or data received from another component (eg, the sensor module 176 or the communication module 190 ) into the volatile memory 132 .
- the processor 120 is a main processor 121 (eg, a central processing unit or an application processor) or a secondary processor 123 (eg, a graphic processing unit, a neural network processing unit) a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor).
- a main processor 121 eg, a central processing unit or an application processor
- a secondary processor 123 eg, a graphic processing unit, a neural network processing unit
- NPU neural processing unit
- an image signal processor e.g., a sensor hub processor, or a communication processor.
- the secondary processor 123 may, for example, act on behalf of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or when the main processor 121 is active (eg, executing an application). ), together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display module 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states.
- the auxiliary processor 123 eg, image signal processor or communication processor
- the auxiliary processor 123 may include a hardware structure specialized for processing an artificial intelligence model.
- Artificial intelligence models can be created through machine learning. Such learning may be performed, for example, in the electronic device 101 itself on which the artificial intelligence model is performed, or may be performed through a separate server (eg, the server 108).
- the learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but in the above example not limited
- the artificial intelligence model may include a plurality of artificial neural network layers.
- Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the above example.
- the artificial intelligence model may include, in addition to, or alternatively, a software structure in addition to the hardware structure.
- the memory 130 may store various data used by at least one component (eg, the processor 120 or the sensor module 176 ) of the electronic device 101 .
- the data may include, for example, input data or output data for software (eg, the program 140 ) and instructions related thereto.
- the memory 130 may include a volatile memory 132 or a non-volatile memory 134 .
- the program 140 may be stored as software in the memory 130 , and may include, for example, an operating system 142 , middleware 144 , or an application 146 .
- the input module 150 may receive a command or data to be used by a component (eg, the processor 120 ) of the electronic device 101 from the outside (eg, a user) of the electronic device 101 .
- the input module 150 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).
- the sound output module 155 may output a sound signal to the outside of the electronic device 101 .
- the sound output module 155 may include, for example, a speaker or a receiver.
- the speaker can be used for general purposes such as multimedia playback or recording playback.
- the receiver can be used to receive incoming calls. According to an embodiment, the receiver may be implemented separately from or as a part of the speaker.
- the display module 160 may visually provide information to the outside (eg, a user) of the electronic device 101 .
- the display module 160 may include, for example, a control circuit for controlling a display, a hologram device, or a projector and a corresponding device.
- the display module 160 may include a touch sensor configured to sense a touch or a pressure sensor configured to measure the intensity of a force generated by the touch.
- the audio module 170 may convert a sound into an electric signal or, conversely, convert an electric signal into a sound. According to an embodiment, the audio module 170 acquires a sound through the input module 150 , or an external electronic device (eg, a sound output module 155 ) connected directly or wirelessly with the electronic device 101 .
- the electronic device 102) eg, a speaker or headphones
- the electronic device 102 may output a sound.
- the sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the sensed state. can do.
- the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.
- the interface 177 may support one or more specified protocols that may be used by the electronic device 101 to directly or wirelessly connect with an external electronic device (eg, the electronic device 102 ).
- the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.
- the connection terminal 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102 ).
- the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).
- the haptic module 179 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic sense.
- the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.
- the camera module 180 may capture still images and moving images. According to an embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.
- the power management module 188 may manage power supplied to the electronic device 101 .
- the power management module 188 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).
- PMIC power management integrated circuit
- the battery 189 may supply power to at least one component of the electronic device 101 .
- the battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.
- the communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). It can support establishment and communication performance through the established communication channel.
- the communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication.
- the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg, : It may include a local area network (LAN) communication module, or a power line communication module).
- a wireless communication module 192 eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module
- GNSS global navigation satellite system
- wired communication module 194 eg, : It may include a local area network (LAN) communication module, or a power line communication module.
- a corresponding communication module among these communication modules is a first network 198 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (eg, legacy It may communicate with the external electronic device 104 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (eg, a telecommunication network such as a LAN or a WAN).
- a first network 198 eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)
- a second network 199 eg, legacy It may communicate with the external electronic device 104 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (eg, a telecommunication network such as a LAN or a WAN).
- a telecommunication network
- the wireless communication module 192 uses subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199 .
- subscriber information eg, International Mobile Subscriber Identifier (IMSI)
- IMSI International Mobile Subscriber Identifier
- the electronic device 101 may be identified or authenticated.
- the wireless communication module 192 may support a 5G network after a 4G network and a next-generation communication technology, for example, a new radio access technology (NR).
- NR access technology includes high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and access to multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency) -latency communications)).
- eMBB enhanced mobile broadband
- mMTC massive machine type communications
- URLLC ultra-reliable and low-latency
- the wireless communication module 192 may support a high frequency band (eg, mmWave band) to achieve a high data rate, for example.
- a high frequency band eg, mmWave band
- the wireless communication module 192 uses various techniques for securing performance in a high-frequency band, for example, beamforming, massive multiple-input and multiple-output (MIMO), all-dimensional multiplexing. It may support technologies such as full dimensional MIMO (FD-MIMO), an array antenna, analog beam-forming, or a large scale antenna.
- the wireless communication module 192 may support various requirements defined in the electronic device 101 , an external electronic device (eg, the electronic device 104 ), or a network system (eg, the second network 199 ).
- the wireless communication module 192 includes a peak data rate (eg, 20 Gbps or more) for realizing eMBB, loss coverage (eg, 164 dB or less) for realizing mMTC, or U-plane latency for realizing URLLC ( Example: Downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) can be supported.
- a peak data rate eg, 20 Gbps or more
- loss coverage eg, 164 dB or less
- U-plane latency for realizing URLLC
- the antenna module 197 may transmit or receive a signal or power to the outside (eg, an external electronic device).
- the antenna module 197 may include an antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern.
- the antenna module 197 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is connected from the plurality of antennas by, for example, the communication module 190 . can be selected. A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna.
- other components eg, a radio frequency integrated circuit (RFIC)
- RFIC radio frequency integrated circuit
- the antenna module 197 may form an mmWave antenna module.
- the mmWave antenna module comprises a printed circuit board, an RFIC disposed on or adjacent to a first side (eg, bottom side) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, an array antenna) disposed on or adjacent to a second side (eg, top or side) of the printed circuit board and capable of transmitting or receiving signals of the designated high frequency band. can do.
- peripheral devices eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)
- GPIO general purpose input and output
- SPI serial peripheral interface
- MIPI mobile industry processor interface
- the command or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199 .
- Each of the external electronic devices 102 or 104 may be the same as or different from the electronic device 101 .
- all or part of the operations executed by the electronic device 101 may be executed by one or more external electronic devices 102 , 104 , or 108 .
- the electronic device 101 may perform the function or service itself instead of executing the function or service itself.
- one or more external electronic devices may be requested to perform at least a part of the function or the service.
- One or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 101 .
- the electronic device 101 may process the result as it is or additionally and provide it as at least a part of a response to the request.
- cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used.
- the electronic device 101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing.
- the external electronic device 104 may include an Internet of things (IoT) device.
- the server 108 may be an intelligent server using machine learning and/or neural networks.
- the external electronic device 104 or the server 108 may be included in the second network 199 .
- the electronic device 101 may be applied to an intelligent service (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.
- the electronic device may be a device of various types.
- the electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device.
- a portable communication device eg, a smart phone
- a computer device e.g., a laptop, a desktop, a tablet, or a portable multimedia device
- portable medical device e.g., a portable medical device
- camera e.g., a camera
- a wearable device e.g., a smart watch
- a home appliance device e.g., a smart bracelet
- first, second, or first or second may simply be used to distinguish an element from other elements in question, and may refer elements to other aspects (e.g., importance or order) is not limited. It is said that one (eg, first) component is “coupled” or “connected” to another (eg, second) component, with or without the terms “functionally” or “communicatively”. When referenced, it means that one component can be connected to the other component directly (eg by wire), wirelessly, or through a third component.
- module used in various embodiments of the present document may include a unit implemented in hardware, software, or firmware, for example, and interchangeably with terms such as logic, logic block, component, or circuit.
- a module may be an integrally formed part or a minimum unit or a part of the part that performs one or more functions.
- the module may be implemented in the form of an application-specific integrated circuit (ASIC).
- ASIC application-specific integrated circuit
- one or more instructions stored in a storage medium may be implemented as software (eg, the program 140) including
- the processor eg, the processor 120
- the device eg, the electronic device 101
- the one or more instructions may include code generated by a compiler or code executable by an interpreter.
- the device-readable storage medium may be provided in the form of a non-transitory storage medium.
- 'non-transitory' only means that the storage medium is a tangible device and does not contain a signal (eg, electromagnetic wave), and this term is used in cases where data is semi-permanently stored in the storage medium and It does not distinguish between temporary storage cases.
- a signal eg, electromagnetic wave
- the method according to various embodiments disclosed in this document may be provided by being included in a computer program product.
- Computer program products may be traded between sellers and buyers as commodities.
- the computer program product is distributed in the form of a machine-readable storage medium (eg compact disc read only memory (CD-ROM)), or through an application store (eg Play StoreTM) or on two user devices ( It can be distributed (eg downloaded or uploaded) directly, online between smartphones (eg: smartphones).
- a portion of the computer program product may be temporarily stored or temporarily created in a machine-readable storage medium such as a memory of a server of a manufacturer, a server of an application store, or a relay server.
- each component (eg, module or program) of the above-described components may include a singular or a plurality of entities, and some of the plurality of entities may be separately disposed in other components.
- one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added.
- a plurality of components eg, a module or a program
- the integrated component may perform one or more functions of each component of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. .
- operations performed by a module, program, or other component are executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations are executed in a different order, omitted, or , or one or more other operations may be added.
- FIG. 2 is a block diagram 200 illustrating a camera module 180, according to various embodiments.
- the camera module 280 (eg, the camera module 180 of FIG. 1 ) includes a lens assembly 210 (eg, the lens assembly includes a lens), a flash 220 , and an image sensor.
- the image stabilizer 240 eg, the image stabilizer includes an image stabilizer circuit
- a memory 250 eg, a buffer memory
- an image signal processor 260 eg, an image signal
- the processor may include image processing circuitry).
- the lens assembly 210 may collect light emitted from a subject, which is an image to be captured.
- the lens assembly 210 may include one or more lenses.
- the camera module 280 may include a plurality of lens assemblies 210 .
- the camera module 280 may form, for example, a dual camera, a 360 degree camera, or a spherical camera.
- Some of the plurality of lens assemblies 210 may have the same lens properties (eg, angle of view, focal length, auto focus, f number, or optical zoom), or at least one lens assembly may be a different lens assembly. It may have one or more lens properties that are different from the lens properties of .
- the lens assembly 210 may include, for example, a wide-angle lens or a telephoto lens.
- the flash 220 may emit light used to enhance light emitted or reflected from the subject.
- the flash 220 may include one or more light emitting diodes (eg, a red-green-blue (RGB) LED, a white LED, an infrared LED, or an ultraviolet LED), or a xenon lamp.
- a red-green-blue (RGB) LED e.g., a red-green-blue (RGB) LED, a white LED, an infrared LED, or an ultraviolet LED
- a xenon lamp e.g, a red-green-blue (RGB) LED, a white LED, an infrared LED, or an ultraviolet LED
- the image sensor 230 may obtain an image corresponding to the subject by converting light emitted or reflected from the subject and transmitted through the lens assembly 210 into an electrical signal.
- the image sensor 230 may include, for example, one image sensor selected from among image sensors having different properties, such as an RGB sensor, a black and white (BW) sensor, an IR sensor, or a UV sensor, the same It may include a plurality of image sensors having properties, or a plurality of image sensors having different properties.
- Each image sensor included in the image sensor 230 may be implemented using, for example, a charged coupled device (CCD) sensor or a complementary metal oxide semiconductor (CMOS) sensor.
- CCD charged coupled device
- CMOS complementary metal oxide semiconductor
- the image stabilizer 240 includes various image stabilizer circuits, and in response to the movement of the camera module 180 or the electronic device 101 including the same, at least one lens or an image sensor included in the lens assembly 210 .
- the 230 may be moved in a specific direction or an operation characteristic of the image sensor 230 may be controlled (eg, read-out timing may be adjusted, etc.). This makes it possible to compensate for at least some of the negative effects of the movement on the image being taken.
- the image stabilizer 240 is, according to an embodiment, the image stabilizer 240 is a gyro sensor (not shown) or an acceleration sensor (not shown) disposed inside or outside the camera module 280 . can be used to detect such a movement of the camera module 280 or the electronic device 101 .
- the image stabilizer 240 may be implemented as, for example, an optical image stabilizer.
- the memory 250 may temporarily store at least a portion of the image acquired through the image sensor 230 for a next image processing operation. For example, when image acquisition is delayed according to the shutter or a plurality of images are acquired at high speed, the acquired original image (eg, a Bayer-patterned image or a high-resolution image) is stored in the memory 250 and , a copy image corresponding thereto (eg, a low-resolution image) may be previewed through the display module 160 .
- the acquired original image eg, a Bayer-patterned image or a high-resolution image
- a copy image corresponding thereto eg, a low-resolution image
- the memory 250 may be configured as at least a part of the memory 130 or as a separate memory operated independently of the memory 130 .
- the image signal processor 260 may include various image processing circuits, and may perform one or more image processing on an image acquired through the image sensor 230 or an image stored in the memory 250 .
- the one or more image processes may include, for example, depth map generation, three-dimensional modeling, panorama generation, feature point extraction, image synthesis, or image compensation (eg, noise reduction, resolution adjustment, brightness adjustment, blurring ( blurring), sharpening (sharpening), or softening (softening) may be included.
- the image signal processor 260 controls at least one of the components included in the camera module 280 (eg, the image sensor 230 ) (eg, exposure time control, or readout timing control). etc.) can be done.
- the image processed by the image signal processor 260 is stored back in the memory 250 for further processing or an external component of the camera module 280 (eg, the camera module 180 of FIG. 1 ) (eg, FIG. 1 ). of the memory 130 , the display module 160 , the electronic device 102 , the electronic device 104 , or the server 108 ).
- the image signal processor 260 may be configured as at least a part of a processor (eg, the processor 120 of FIG. 1 ) or as a separate processor operated independently of the processor.
- the image signal processor 260 When the image signal processor 260 is configured as a processor separate from the processor, at least one image processed by the image signal processor 260 is processed by the processor as it is or after additional image processing is performed by the display module (eg, in FIG. 1 ). may be displayed through the display module 160 of
- the electronic device may include a plurality of camera modules 280 each having different properties or functions.
- at least one of the plurality of camera modules 280 may be a wide-angle camera, and at least the other may be a telephoto camera.
- at least one of the plurality of camera modules 280 may be a front camera, and at least the other may be a rear camera.
- FIG. 3 is a block diagram illustrating a configuration of an image processing apparatus according to various embodiments of the present disclosure
- the camera module (eg, the camera module 180 of FIG. 1 , the camera module 280 of FIG. 2 ) according to various embodiments of the present disclosure may include a main controller 301 (eg, the main controller for various processing).
- a main controller 301 eg, the main controller for various processing.
- an image sensor module 310 eg, the image sensor module includes at least one sensor
- a light receiving module 320 eg, the light receiving module includes a light receiving circuit
- a black level adjustment unit 331 eg, the black level adjustment unit includes various circuits and/or executable program instructions
- a digital gain adjustment unit 332 eg, the digital gain adjustment unit includes various circuits) and executable program instructions
- a lens shading correction unit 333 eg, a lens shading correction unit including various circuits and executable program instructions
- an automatic white balance statistics extractor 334 eg,
- the white balance statistics extractor includes various circuits and executable program instructions
- the white balance control 335 eg, the white balance control includes various circuits and executable program instructions
- a color corrector 336 eg, the color correction unit includes various circuits and executable program instructions
- a gamma correction unit 337 eg, the gamma correction unit includes various circuits and executable program instructions
- the main control unit 301 includes an image sensor module 310, a light receiving module 320, a black level adjuster 331, a digital gain adjuster 332, a lens shading corrector 333, and an automatic white balance statistics extractor 334. , the white balance control unit 335 , the color correction unit 336 , the gamma correction unit 337 , the color information analysis unit 338 , the image processing unit 339 , the light source characteristic detection unit 340 , and the automatic color adjustment control unit 350 . ) and controls the entire drive.
- the main control unit 301 provides a control signal for controlling the operating power of each functional unit, a timing signal of an image sensor arranged in a pixel unit, a sensor control signal, and the like.
- the image sensor module 310 converts an optical signal projected through a lens of the camera into an electrical signal, and generates a video signal for expressing the color of each pixel constituting the image.
- the image signal indicates the pixel unit output values (R, G, B) of the image sensor module 310, and the image is an image formed by combining pixel unit image signals, for example, a photo or a moving picture. It may be a frame included in the .
- the image sensor module 310 includes an image sensor array 311 including a plurality of image sensors arranged to match the resolution of an image, and a power supply unit 313 for supplying operating power to the image sensor module 310 .
- the image sensor array 311 is controlled by a timing signal and a sensor control signal, and the image signal of the image sensor array 311 is output to the black level adjusting unit 331 according to the timing signal.
- the black level adjustment unit 331 receives an offset corresponding to the black level adjustment value and performs black level adjustment on the image signal.
- the black level may be adjusted as compensation by exposure time after forcibly subtracting an offset from the image signals R, G, and B, or may be adjusted by a generalized formula.
- the black level of the video signals R, G, and B may be adjusted using a predetermined adjustment table.
- the offset may be determined by a previously measured black level.
- the black level may be measured by an image signal output in a state in which light is blocked so that light is not incident through the lens.
- the black level-adjusted image signal is input to the digital gain adjuster 332 , and the digital gain adjuster 332 adjusts the brightness of the black level-adjusted image signal by an auto exposure (AE) algorithm so that the brightness is maintained constant.
- AE auto exposure
- the lens shading correcting unit 333 is a block for correcting a lens shading phenomenon in which the amount of light in the center and the edge of the image is different, and receives the lens shading setting value from the automatic color temperature control controller, and receives the color of the center and the edge of the image. to correct Furthermore, the lens shading correction unit 333 receives a shading variable set differently depending on the type of light source from the automatic color adjustment control unit 350 and processes the lens shading of the image according to the received variable. Accordingly, the lens shading correction unit 333 may perform the lens shading process by applying different shading degrees according to the type of light source.
- the white balance statistics extractor (AWB ststics) 334 extracts statistical values necessary for the automatic color adjustment algorithm from the image and provides them to the automatic color adjustment controller 350 so as to match the white balance of the image.
- the white balance controller 335 adjusts the gain level of the image signal so that a white object can be accurately reproduced as white.
- the white balance control unit 335 multiplies each of the R, G, and B signals of the image signal by gain values (G gain (GG), R gain (GR), and B gain (GB)), thereby correcting the white balance. carry out
- the gain values GR, GG, and GB are determined by the automatic color adjustment control unit 350 .
- the color correction unit 336 performs color correction on the input image signal by calculating a color correction matrix. That is, in order to restore the color of the captured image by removing the interference between the R, G, and B channels of the input R, G, and B channel signals from the image sensor, the operation of Equation 1 below may be performed.
- R, G, and B are the outputs for each red, green, and blue channel of the image sensor
- R', G', and B' are signals for each red, green, and blue channel with minimized interference between R, G, and B channels.
- CCM is a color correction matrix, which is a 3 ⁇ 3 matrix that minimizes interference between red, green, and blue channels.
- gamma is a measure indicating a contrast state and refers to the inclination of a characteristic curve, that is, a change in concentration/change in exposure amount.
- a display device such as a CRT
- the relationship between the electron beam current to the input voltage of the image signal is non-linear, and the brightness of the image with respect to the beam current is linear. That is, the brightness of the image with respect to the input voltage of the image signal is non-linear.
- the gamma correction unit 337 performs gamma correction on the standard image signal so that the final image signal has linearity in consideration of the non-linear characteristics of the display device.
- the gamma correction unit 337 corrects a non-linear characteristic of the display device.
- the image processing unit 339 performs image processing on the image signal to form an image from the image signal.
- the formed image is displayed through a display or the like, or stored in a memory or the like.
- the light receiving module 320 is provided close to the image sensor module 310 , in particular, the image sensor array 311 , and detects an optical signal of an external light source.
- the optical signal detected by the light receiving module 320 is output to the light source characteristic detecting unit 340 for use in analyzing the characteristics of the light source.
- the light receiving module 320 includes at least a plurality of light receiving elements 321 , a variable gain amplifier (VGA) 325 for adjusting the gain of output values of the plurality of light receiving elements 321 , and a light receiving module 320 . ) and a power supply unit 326 for supplying operating power.
- VGA variable gain amplifier
- the light receiving module 320 may further include an optical filter capable of passing a wavelength in the visible light region to the front end of some of the plurality of light receiving elements 321 to detect the illuminance of the visible light region.
- the light receiving module 320 may further include an optical filter capable of passing a wavelength in the infrared or ultraviolet region to the front end of some of the plurality of light receiving elements to detect the illuminance in the infrared or ultraviolet region.
- the light filter may be directly coated on at least a portion of the light receiving element 321 or provided as a separate structure.
- the light receiving module 320 has exemplified detecting the illuminance of the visible ray region, but the present invention is not limited thereto.
- the light receiving module 320 detects the illuminance of the ultraviolet or infrared region. can do.
- the light receiving module 320 may further include an optical filter capable of passing a wavelength in the infrared region to the front end of at least a portion of the light receiving element 321 .
- FIG. 4A is a rear view illustrating a rear surface of a device capable of simultaneously performing a lighting function and a light source sensing function (hereinafter, referred to as a “light source sensing device”) through a common hole according to various embodiments of the present disclosure; It is a cross-sectional view taken along Improvement I-I, and FIG. 4C is a diagram schematically illustrating a light receiving area of a plurality of light receiving elements according to various embodiments of the present disclosure.
- the light source sensing device may detect the external light source and determine the type and/or location of the external light source.
- the light source sensing device may be, for example, a configuration of the sensor module 176 of FIG. 1 .
- the light source sensing device may have an illumination function while having a function of detecting an external light source.
- the light source sensing device may determine the type and/or location of the external light source by analyzing the light of the external light source while illuminating the outside through the flash.
- the light source sensing device includes a cover 410 , a main condensing lens 420 connected to the cover 410 , an interposer 490 disposed inside the cover 410 , and an interposer 490 on the interposer 490 .
- a printed circuit board 430 disposed on the printed circuit board 430, a flash 440 (eg, the flash 220 of FIG. 2 ) and a plurality of light receiving elements 451 and 452 (eg, FIG. 3 ) disposed on the printed circuit board 430 . may include a plurality of light receiving elements 321) and an adhesive layer 491 for connecting the main condensing lens 420 to the inner surface of the cover 410 .
- the cover 410 may form the exterior of the electronic device (eg, the electronic device 101 of FIG. 1 ).
- the cover 410 may include a back cover 411 and a front cover 412 coupled to each other, and a common hole 413 formed through the back cover 411 .
- the back cover 411 may constitute a rear side of the electronic device, and the front cover 412 may constitute a front side of the electronic device.
- a display module eg, the display module 160 of FIG. 1
- a camera module eg, a lens of a front camera among the plurality of camera modules 280 of FIG. 2
- a camera module eg, a rear camera among the plurality of camera modules 208 of FIG. 2
- a flash eg, the flash 220 of FIG. 2
- the back cover 412 may be disposed on the back cover 412 .
- the back cover 411 and the front cover 412 may be separately manufactured in a separated state.
- the back cover 411 and the front cover 412 may be combined in a state in which all components of the electronic device are assembled.
- the back cover 411 may be coupled to the front cover 412 .
- the front cover 412 may be coupled to the back cover 411 .
- the cover 410 may be integrally formed.
- the common hole 413 provides a path through which the flash 440 can radiate light to the outside.
- the common hole 413 provides a path through which the plurality of light receiving elements 451 and 452 can receive light from the outside.
- the light source sensing device may perform an illumination function through the common hole 413 and simultaneously perform a light source sensing function through the common hole 413 .
- the shape of the common hole 413 is illustrated in a circular shape, but is not limited thereto.
- the shape of the common hole 413 may have, for example, an elliptical shape or a polygonal shape.
- the central axis C of the common hole 413 refers to a virtual line passing through the center of the common hole 413 and facing the height direction (z-axis direction) of the light source sensing device.
- the center of the common hole 413 corresponds to the center of the circle.
- the center of the common hole 413 corresponds to the center of two focal points.
- the center of gravity of the polygon is referred to as the center of the common hole 413 .
- the main condensing lens 420 may assist light to be irradiated in a wide range from the flash 440 to the outside.
- the main condensing lens 420 may assist light to effectively reach the plurality of light receiving elements 451 and 452 from the external light source.
- the main condensing lens 420 may be a Fresnel lens formed of continuous concentric grooves etched into plastic.
- the center (eg, the concentric groove) of the main condensing lens 420 may be parallel to the central axis C of the common hole 413 .
- the main condensing lens 420 may be attached to the cover 410 while maintaining a distance L1 from the flash 440 , or may be directly attached to the flash 440 .
- the main condensing lens 420 may be connected to the cover 410 to cover the common hole 413 from the inside.
- the main condensing lens 420 includes a core part 421 inserted into the common hole 413 , and a lower side of the core part 422 , having a larger diameter than the core part 421 , and of the back cover 411 . It may include a flange part 422 facing the inner surface.
- the adhesive layer 491 may attach the flange part 422 to the back cover 411 .
- the adhesive layer 491 may be formed in a ring shape.
- the adhesive layer 491 may implement sealing to prevent water or foreign substances from entering the inside of the cover 410 from the outside.
- the interposer 490 may be provided inside the cover 410 .
- the interposer 490 may be disposed on the inner surface of the front cover 410 and may face the lower surface of the main condensing lens 420 .
- the interposer 490 includes a power supply for supplying power to the flash 440 and the plurality of light receiving elements 451 and 452 , a controller for controlling the flash 440 , and a plurality of light receiving elements 451 and 452 .
- a variable gain amplifier (VGA) eg, the variable gain amplifier 325 of FIG. 3
- a processor eg, the light source characteristic detection unit 340 of FIG. 3 ) for processing may be provided.
- the printed circuit board 430 may be disposed on the upper surface of the interposer 490 .
- the printed circuit board 430 may support a flash 440 and a plurality of light receiving elements 451 and 452 to be described later.
- the printed circuit board 430 may include a plurality of connection lines to be electrically connected to various components provided in the interposer 490 .
- the printed circuit board 430 may be a silicon wafer, but is not limited thereto.
- the flash 440 (eg, the flash 220 of FIG. 2 ) may generate light to illuminate the outside and irradiate it to the outside.
- the flash 440 may be disposed on the printed circuit board 430 .
- the distance L1 between the upper surface of the flash 440 and the lower surface of the main condensing lens 420 may act as a factor for increasing the performance of the flash 440 .
- the distance L1 may be set, for example, in the range of 0.2 mm to 0.8 mm. Meanwhile, it should be noted that the upper surface of the flash 440 and the lower surface of the main condensing lens 420 may be in contact with each other.
- the distance at which the flash 440 is separated from the main condensing lens 420 may be set.
- the light source sensing device can be implemented more compactly.
- the flash 440 may be provided at a position parallel to the central axis C of the common hole 413 in order to effectively perform a flash function.
- parallel means that the central axis C of the common hole 413 passes through the flash 440 .
- the center of the flash 440 may be located at a position through which the central axis C of the common hole 413 passes.
- the plurality of light receiving elements 451 and 452 may receive light from the outside through the common hole 413 .
- the plurality of light receiving elements 451 and 452 may be disposed on the printed circuit board 430 .
- the plurality of light receiving elements 451 and 452 include a first light receiving element 451 provided at a position spaced apart from the flash 440 in a first direction D1 and a second direction D2 different from the first direction D1. It may include a second light receiving element 452 provided at a spaced apart position.
- the first light receiving element 451 and the second light receiving element 452 may be symmetrically disposed with respect to the flash 440 .
- the first light receiving element 451 and the second light receiving element 452 may be provided opposite to each other with respect to the flash 440 .
- the plurality of light receiving elements 451 and 452 are arranged at positions spaced apart from the central axis C. Even if the plurality of light receiving elements 451 and 452 are disposed at positions spaced apart from the central axis C, the first light receiving element 451 and the second light receiving element 452 are located opposite to each other with respect to the central axis C. According to the arrangement, the plurality of light receiving elements 451 and 452 may secure a symmetrical light receiving area as a whole. In other words, the plurality of light receiving elements may have a symmetrical angle of view with respect to the central axis C.
- the first light receiving element 451 may be spaced apart from the central axis C of the common hole 413 in the first direction (D1, -x direction). Since the common hole 413 is biased in the +x direction with respect to the first light receiving element 451 , the light receiving area A1 of the first light receiving element 451 may be formed to be biased in the +x direction. As a result, the first light receiving element 451 receives a relatively large amount of light from a region biased in the +x direction with respect to the central axis C, and receives light from a region skewed in the -x direction with respect to the central axis C. can receive relatively little.
- the second light receiving element 452 may be spaced apart from the central axis C of the common hole 413 in the second direction (D2, +x direction). Since the common hole 413 is biased in the -x direction with respect to the second light receiving element 452 , the light receiving area A2 of the second light receiving element 452 may be formed to be biased in the -x direction. As a result, the second light receiving element 452 receives a relatively large amount of light from a region biased in the -x direction with respect to the central axis C, and receives light from a region biased toward the +x direction with respect to the central axis C. can receive relatively little.
- the entire light receiving area of the plurality of light receiving elements 451 and 452 is formed in the common hole 413 . It may be formed symmetrically with respect to the central axis (C).
- the light receiving area A1 of the first light receiving element 451 and the light receiving area A2 of the second light receiving element 452 may overlap each other in the vicinity of the central axis C.
- an area that does not overlap the light-receiving area A2 of the second light-receiving element 452 may be formed at a position spaced apart from the central axis C in the +x direction.
- an area that does not overlap the light-receiving area A1 of the first light-receiving element 451 may be formed at a position spaced apart from the central axis C in the -x direction.
- FIG. 5A is a plan view schematically illustrating a printed circuit board, a flash, and a plurality of light receiving devices according to various embodiments
- FIG. 5B is a cross-sectional view taken along the cut line II-II of FIG. 5A
- FIG. 5C is various embodiments It is a block diagram of a light source sensing device according to
- a flash 540 and a plurality of light receiving elements 551 and 552 may be disposed on the printed circuit board 530 .
- the flash 540 may be disposed parallel to the central axis C of the common hole (eg, the common hole 413 of FIG. 4A ). In other words, the central axis C may pass through the flash 540 .
- the plurality of light receiving elements 551 and 552 may be symmetrically positioned with respect to the flash 540 .
- the first light receiving element 551 and the second light receiving element 552 may be disposed opposite to each other with respect to the flash 540 .
- the first light receiving element 551 may be located at a position spaced apart from the flash 540 in the first direction (D1, -x direction), and the second light receiving element 552 may be located in the second direction (D1, -x direction) from the flash 540 . D2, +x direction).
- the distance between each of the plurality of first light receiving elements 551 from the flash 540 may be approximately the same, but is not limited thereto.
- a distance at which each of the plurality of first light receiving elements 551 is separated from the flash 540 may be individually appropriately set.
- the distance between the plurality of second light receiving elements 552 and the flash 540 may be approximately the same, but is not limited thereto.
- the flash 540 is illustrated as having a rectangular shape, but is not limited thereto.
- the flash 540 may have another polygonal shape or a circular shape.
- the first light receiving element 551 may be any one of a photo-transistor, a photo-diode, and a photo IC disposed on the printed circuit board 530 . It may include any device that receives
- a photodiode is a typical PN photodiode that is formed on a P-type silicon substrate to convert light energy into electrical energy, and is configured by doping a P-type region and an N-type region forming a PN junction to the silicon substrate.
- the P-type region may be formed as a base, and the N-type region may be formed as an N-epi or emitter, and a conventional CMOS
- the P-type region may be formed as a P+ source/drain or P sub, and the N-type region may be formed as an N well or N+ source/drain.
- the second light receiving element 552 may be any one of a photo-transistor, a photo-diode, and a photo IC formed on the printed circuit board 530 , In addition, it may include any element that receives light.
- the first light receiving element and the second light receiving element may be of the same type or different types.
- a metal wire (not shown) for transmitting the output signal to the peripheral circuit, that is, the processor 580 may be disposed on the printed circuit board 530 .
- the metal wiring is for connecting a signal between the first light receiving element 551 and the second light receiving element 552 and a peripheral circuit, for example, the processor 580, and the first light receiving element 551 and the second light receiving element ( 552) may be formed to be connected to each part.
- the metal wiring may be formed in a single layer, but may also be formed in a plurality of layers.
- Each of the first light receiving element 551 and the second light receiving element 552 may be provided in plurality.
- the first light receiving element 551 and the second light receiving element 552 may be provided in an even number, for example, four, but is not limited thereto.
- Each of the plurality of first light-receiving elements 551 and the plurality of second light-receiving elements 552 may be arranged in a line in parallel in the y-axis direction.
- the plurality of first light receiving elements 551 may include four light receiving elements 551a , 551b , 551c , and 551d sequentially arranged in the y-axis direction.
- the light source sensing device may include a plurality of filters 560 that cover some of the plurality of light receiving elements 551 and 552 .
- the plurality of filters 560 cover some (eg, half) of the first light receiving elements 551 of the plurality of first light receiving elements 551 , and the plurality of second light receiving elements 552 . ) of (eg, half) of the second light receiving element 552 may be covered.
- the filter 560 is omitted and shown.
- the filter 560 will be described based on the passage of light in the visible ray band, but it is not limited thereto.
- the filter 560 may pass light in an infrared or ultraviolet band.
- the filter 560 receives the incident light output from the light source, and passes the light of the visible ray band among the wavelength bands included in the incident light. That is, the filter may be a band pass filter (BPF) that passes light in a wavelength band of 300 to 700 [nm].
- BPF band pass filter
- the first light receiving elements 551b and 551d that are not covered by the filter 560 among the plurality of first light receiving elements 551 receive the incident light output from the light source, that is, the measurement light source for which the illuminance is to be measured, and receive the received Outputs an electrical signal for incident light.
- the incident light refers to light including visible light and infrared bands.
- the first light receiving elements 551b and 551d not covered by the filter 560 may receive light having a wavelength of 400 to 1000 [nm] corresponding to the visible light band and the infrared band.
- the first light receiving elements 551a and 551c covered by the filter 560 receive the light of the visible ray band for the measurement light source passed by the filter 560 , and receive It outputs an electrical signal for the light in the visible ray band.
- the first light receiving elements 551a and 551c covered by the filter 560 may receive light having a wavelength of 400 to 700 [nm] corresponding to a visible ray band.
- the light receiving elements 551b and 551d may be alternately disposed.
- the first light receiving element 551a , the first light receiving element 551b , the first light receiving element 551c , and the first light receiving element 551d may be sequentially disposed.
- the first light receiving element covered by the filter 560 among the plurality of first light receiving elements 551 and the first light receiving element not covered by the filter 560 among the plurality of first light receiving elements 551 can form a pair.
- the ratio of infrared components can be calculated
- a portion (eg, half) of the second light receiving elements 552 may be covered by the filter 560 to receive light having a wavelength corresponding to a visible ray band.
- the remaining (eg, the other half) second light receiving element 552 is not covered by the filter 560 , and thus may receive light having a wavelength corresponding to a visible ray band and an infrared ray band.
- the processor 580 calculates an amount CH1 of the first light received by the light receiving element not covered by the filter 560 among the plurality of light receiving elements 551 and 552 and , calculates an index obtained by subtracting the amount of the second light (CH2) from the amount of the second light (CH2) received by the light receiving element covered by the filter (560) and the amount of the first light (CH1), and the amount of the first light (CH2)
- the ratio of the index to (CH1) can be calculated.
- the processor 580 calculates the ratio of the infrared component of the incident light to the measurement light source using the electrical signals output from the plurality of first light receiving elements 551 , and the type of the measured light source based on the calculated ratio of the infrared component. can be decided
- the processor 580 may distinguish whether the light source measured in the light receiving area is a fluorescent lamp, an incandescent lamp, or sunlight based on the ratio of the infrared component.
- sunlight may have a relatively larger ratio of an infrared component than an incandescent lamp
- a fluorescent lamp may have a relatively smaller ratio of an infrared component than that of an incandescent lamp.
- the equations are proportional to the area ratios of the first light receiving elements 551b and 551d and the first light receiving elements 551b and 551d, respectively, and may be subjected to optimization in an actual set.
- the processor 580 may transmit information on the type of light source to the automatic color adjustment controller (eg, the automatic color adjustment controller 350 of FIG. 3 ).
- the automatic color adjustment controller eg, the automatic color adjustment controller 350 of FIG. 3 .
- the infrared component ratio is, for each light source, in the amount CH1 of the light received by the first light receiving elements 551b and 551d not covered by the filter 560, to the first light receiving element covered by the filter 560 ( It can be calculated by subtracting the amount of light CH2 received by 551a and 551c and dividing by the amount CH1 of light received by the first light receiving elements 551b and 551d.
- the ratio of the infrared component may be (CH1-CH2)/CH1.
- the amount of light CH1 received by the first light receiving elements 551b and 551d not covered by the filter 560 and the amount CH1 covered by the filter 560 for more precise ratio measurement A coefficient may be applied to each of the amounts of light CH2 received by the first light receiving elements 551a and 551c.
- the ratio of the infrared component may be (a*CH1-b*CH2)/CH1.
- a and b may be coefficients applied to CH1 and CH2, respectively.
- the processor 580 calculates the ratio of the infrared component of the incident light to the measurement light source using the electrical signals output from the plurality of second light receiving elements 552 , and the measured light source based on the calculated ratio of the infrared component type can be determined.
- the processor 580 may separately calculate a ratio of an infrared component for each of the plurality of first light receiving elements 551 and the plurality of second light receiving elements 552 . Since the light-receiving areas of the plurality of first light-receiving elements 551 and the light-receiving areas of the plurality of second light-receiving elements 552 are different from each other, the processor 580 may individually determine the type of light source for each light-receiving area. . For example, the processor 580 indicates that the light sources corresponding to the light receiving areas of the plurality of first light receiving elements 551 are incandescent lamps, and the light sources corresponding to the light receiving areas of the plurality of second light receiving elements 552 are sunlight.
- the processor 580 may determine the type and location of the light source through the first light receiving element 551 and the second light receiving element 552 provided opposite to each other with respect to the flash 540 and having different light receiving areas. .
- the automatic white balance may be individually applied to each zone.
- the processor 580 may provide a picture with more accurate automatic white balance applied to the consumer.
- the processor 580 may include an area mainly affected by one light source among the two different light sources, an area mainly affected by the other light source, and the two light sources. By dividing regions that are substantially equally affected by all, different automatic white balances may be performed.
- the processor 580 aggregates all the information received by the plurality of first light receiving elements 551 and the plurality of second light receiving elements 552 , and the entire light receiving area, that is, light reception of the plurality of first light receiving elements 551 . It is possible to determine the type of light source in the light-receiving area in which the area and the light-receiving areas of the plurality of second light-receiving elements 552 are combined. According to such a configuration, the light source sensing device may determine the type of the light source for each light receiving area according to each light receiving element, and may determine the type of the light source in the entire light receiving area of all the light receiving elements.
- FIG. 6A is a plan view of a printed circuit board, a flash, and a plurality of light-receiving elements according to various embodiments
- FIG. 6B is a diagram schematically illustrating light-receiving areas of the plurality of light-receiving elements according to various embodiments.
- a flash 640 and a plurality of light receiving elements 651 , 652 , 653 and 654 may be disposed on the printed circuit board 630 .
- the plurality of light receiving elements 651 , 652 , 653 , and 654 may be positioned in a manner to surround the flash 640 .
- the plurality of first light receiving elements 651 are spaced apart from the central axis C of the common hole (not shown, for example, the common hole 413 of FIG. 4B ) in the first direction (D1, -x direction).
- the plurality of second light receiving elements 652 may be disposed at positions spaced apart from the central axis C of the common hole in the second direction (D2, +x direction), and the plurality of third light receiving elements 652 may be disposed
- the element 653 may be disposed at a position spaced apart from the central axis C of the common hole in the third direction (D3, +y direction), and the plurality of fourth light receiving elements 654 are spaced apart from the central axis C of the common hole. It may be disposed at positions spaced apart from each other in the fourth direction (D4, -y direction).
- Each of the plurality of first light receiving elements 651 , second light receiving elements 652 , third light receiving elements 653 , and fourth light receiving elements 654 may be provided in plurality.
- each of the plurality of first light receiving elements 651, second light receiving elements 652, third light receiving elements 653, and fourth light receiving elements 654 is shown as four, but the number is not limited thereto. make it clear
- Each of the plurality of first light-receiving elements 651 , second light-receiving elements 652 , third light-receiving elements 653 , and fourth light-receiving elements 654 includes a part (eg, half) of a filter (not shown, for example) : may be covered by the filter 560 of FIG. 5B ), and the remainder (eg, the other half) may not be covered by the filter (not shown, eg, the filter 560 of FIG. 5B ).
- the light receiving element covered by the filter and the light receiving element not covered by the filter may be paired adjacently.
- a light receiving area of each of the plurality of first light receiving elements 651 , second light receiving elements 652 , third light receiving elements 653 , and fourth light receiving elements 654 may be different.
- the light receiving area of the first light receiving element 651 may be formed to be offset from the central axis C of the common hole in the +x direction
- the light receiving area of the second light receiving element 652 may be formed to be offset from the central axis C of the common hole.
- the light receiving region of the third light receiving element 653 may be formed to be offset from C) in the -x direction, and the light receiving region of the third light receiving element 653 may be formed to be offset from the central axis C of the common hole in the -y direction, and the fourth light receiving element 654 may be formed to be offset from the -y direction. ) may be formed to be offset from the central axis C of the common hole in the +y direction.
- the light source sensing device may have an overall symmetrical angle of view.
- FIG. 7 to 9 are plan views of a printed circuit board, a flash, and a plurality of light receiving elements according to various embodiments of the present disclosure
- the flash and the plurality of light receiving elements may have various shapes and arrangements, respectively.
- a flash 740 and a plurality of light receiving elements 751 , 752 , 753 , 754 , 755 , and 756 may be disposed on a printed circuit board 730 .
- the flash 740 is provided at a position parallel to the central axis C of the common hole, and may have a hexagonal shape.
- the plurality of light receiving elements 751 , 752 , 753 , 754 , 755 , and 756 may be disposed to surround the flash 740 .
- the first light receiving element 751 and the fourth light receiving element 754 may be provided opposite to each other with respect to the flash 740 .
- the second light receiving element 752 and the fifth light receiving element 755 may be provided opposite to each other with respect to the flash 740 .
- the third light receiving element 753 and the sixth light receiving element 756 may be provided opposite to each other with respect to the flash 740 .
- a light receiving area of each of the first light receiving element 751 and the fourth light receiving element 754 may be different from each other.
- the light receiving regions of each of the first light receiving element 751 and the fourth light receiving element 754 may be symmetrical with respect to the central axis C of the common hole.
- the light receiving area of each of the second light receiving element 752 and the fifth light receiving element 755 and the light receiving area of each of the third light receiving element 753 and the sixth light receiving element 756 may also be different and have a common They may be symmetrical about the central axis (C) of the hole.
- Each of the plurality of light receiving elements 751, 752, 753, 754, 755, 756 may be partially (eg, half) covered by a filter (not shown, such as the filter 560 of FIG. 5B ), The light receiving element covered by the filter and the light receiving element not covered by the filter may be located adjacent to each other.
- a flash 840 and a plurality of light receiving elements 850 may be disposed on a printed circuit board 830 .
- the flash 840 is provided at a position parallel to the central axis C of the common hole, and may have a circular shape.
- the plurality of light receiving elements 850 may be disposed to surround the flash 840 .
- a part (eg, half) of the plurality of light receiving elements 850 may be covered by a filter (not shown, for example, the filter 560 of FIG. 5B ), and may be covered by the light receiving element covered by the filter and the filter.
- the uncovered light receiving elements may be located adjacently.
- a flash 940 and a plurality of light receiving elements 950 may be disposed on a printed circuit board 930 .
- the flash 940 is provided at a position parallel to the central axis C of the common hole, and may have a triangular shape.
- the plurality of light receiving elements 950 may be disposed to surround the flash 940 .
- a part (eg, half) of the plurality of light receiving elements 950 may be covered by a filter (not shown, for example, the filter 560 of FIG. 5B ), and may be covered by the light receiving element covered by the filter and the filter.
- the uncovered light receiving elements may be located adjacently.
- FIG. 10A is a plan view of a printed circuit board, a flash, and a plurality of light-receiving elements according to various embodiments
- FIG. 10B is a cross-sectional view taken along line III-III of FIG. 10A
- FIG. It is a cross-sectional view taken along IV.
- the flash 1040 is disposed in parallel with the central axis C of a common hole (not shown, for example, the common hole 413 in FIG. 4B ) on the printed circuit board 1030 .
- the plurality of light receiving elements 1051 and 1052 may be disposed on the printed circuit board 1030 .
- the first light receiving element 1051 and the second light receiving element 1052 may be positioned opposite to each other with respect to the flash 1040 .
- the light source sensing device may include a plurality of sub-collecting lenses 1070 that cover at least some of the plurality of light receiving elements 1051 and 1052 .
- the sub condensing lens 1070 may focus the light reaching the upper side of the plurality of light receiving elements 1051 and 1052 to the plurality of light receiving elements 1051 and 1052 .
- the sub condensing lens 1070 may increase light condensing efficiency, thereby increasing the light source determination accuracy of the light source sensing device.
- the plurality of sub condensing lenses 1070 may cover the plurality of first light receiving elements 1051 .
- the plurality of sub condensing lenses 1070 may cover the first light receiving elements 1051a and 1051c covered by the filter 1060 and the first light receiving elements 1051b and 1051d not covered by the filter 1060 . can
- any one light receiving element eg, the first light receiving element 1051 )
- the other light receiving element eg, the second light receiving element 1052
- FIG. 11 is a cross-sectional view of an apparatus for detecting a light source according to various embodiments of the present disclosure
- a flash 1040 , a plurality of light receiving elements 1151 and 1152 , and a sub-converging lens 1170 may be disposed on the printed circuit board 1030 .
- the center of the sub condensing lens 1170 may be shifted by a predetermined distance from the center of the light receiving elements 1151 and 1152 covered by the sub condensing lens 1170 .
- the sub condensing lens 1170 covering the first light receiving element 1151 may be spaced apart from the central axis of the first light receiving element 1151 by a distance L2 in a direction away from the flash 1140 .
- the sub-collecting lens 1170 covering the second light-receiving element 1152 may be spaced apart from the central axis of the second light-receiving element 1152 by a distance L3 in a direction away from the flash 1140 .
- the distance L2 and the distance L3 may be values between approximately 0.1 mm and 5 mm. According to such a structure, the light receiving area of each of the plurality of light receiving elements 1151 and 1152 may be expanded.
- the sub-converging lens 1170 covering the first light-receiving element 1151 is a distance L2 from the central axis of the first light-receiving element 1151 in a direction closer to the flash 1140 .
- the sub-converging lens 1170 covering the second light-receiving element 1152 may be spaced apart from the central axis of the second light-receiving element 1152 by a distance L3 in a direction closer to the flash 1140 . According to such a structure, the light collecting efficiency of the plurality of light receiving elements 1151 and 1152 can be increased.
- the sub condensing lens 1170 is illustrated as facing upward, but is not limited thereto.
- the central axis of the sub condensing lens 1170 may intersect the normal direction of the upper surface of the flash 1130 .
- the direction in which the sub-converging lens 1170 looks may be appropriately set.
- FIG. 12A is a plan view of a printed circuit board, a flash, and a plurality of light receiving elements according to various embodiments
- FIG. 12B is a cross-sectional view of a light source sensing device according to various embodiments.
- the flash 1240 is positioned parallel to the central axis C of a common hole (not shown, for example, the common hole 413 in FIG. 4B ) on the printed circuit board 1230.
- a plurality of first light receiving elements 1251a and 1251b and a plurality of second light receiving elements 1252a and 1252b may be disposed on opposite sides of the flash 1240 .
- a plurality of sub-collecting lenses 1270 for covering the plurality of light-receiving elements may be disposed on the printed circuit board 1230 .
- any one of the plurality of sub-collecting lenses 1270 may cover the plurality of light-receiving elements.
- any one of the sub-converging lenses 1270 includes a first light receiving element 1251a covered by the filter 1260 and a first light receiving element 1251b not covered by the filter 1260 . can be covered at the same time.
- FIG. 13 is a plan view of a printed circuit board, a flash, and a plurality of light receiving elements according to various embodiments of the present disclosure
- a flash 1340 , a plurality of light receiving elements, and a plurality of sub condensing lenses 1370 may be disposed on the printed circuit board 1330 . Any one of the plurality of sub-collecting lenses 1370 may cover four light-receiving elements. Some (eg, half) of the four light receiving elements may be covered by a filter (not shown), and the other (eg, the other half) may not be covered by a filter (not shown). In other words, the light receiving element covered by the sub condensing lens 1370 may be a pair of a light receiving element covered by a filter and a light receiving element not covered by the filter.
- FIG. 14 is a plan view schematically illustrating a sub condensing lens, a plurality of lenses, and a plurality of light receiving elements according to various embodiments of the present disclosure
- the sub-converging lens 1470 may cover 16 light-receiving elements 1450 .
- Four light receiving elements 1450 among the 16 light receiving elements 1460 may be provided in a state in which they are not covered by the filter.
- the plurality of filters 1461 , 1462 , and 1463 may cover the remaining 12 light receiving elements 1450 , respectively.
- the first filter 1461 covers four light receiving elements
- the second filter 1462 covers the other four light receiving elements
- the third filter 1463 covers the remaining four light receiving elements.
- the first filter 1461 , the second filter 1462 , and the third filter 1463 may be band pass filters (BPFs) that pass light of a predetermined wavelength band, respectively.
- BPFs band pass filters
- the first filter 1461 is a band-pass filter that passes light in a wavelength band of 610 to 615 [nm] in order to pass red (red) in the light
- the second filter 1462 is a green ( green) is a band-pass filter that passes light in a wavelength band of 550 to 555 [nm]
- the third filter 1463 is a band-pass filter of 450 to 455 [nm] wavelength band to pass blue in the light. It may be a band-pass filter that passes light.
- the light source sensing apparatus may analyze the spectrum of the light source.
- 15 is a cross-sectional view of a printed circuit board, a flash, and a plurality of light receiving elements according to various embodiments of the present disclosure
- the printed circuit board 1530 may include inclined surfaces 1531 and 1532 .
- the first inclined surface 1531 and the second inclined surface 1532 may be provided on opposite sides of the flash 1540 .
- the plurality of light receiving elements 1551 and 1552 may be disposed on the first inclined surface 1531 and the second inclined surface 1532 , respectively.
- the normal direction of the first light receiving element 1551 and the normal direction of the second light receiving element 1552 may intersect the central axis C of a common hole (not shown, for example, the common hole 413 in FIG. 4B ), respectively. have. According to such a structure, the light collecting efficiency of the plurality of light receiving elements 1551 and 1552 may be increased.
- the light source sensing device may include a cover 410 including a common hole 413; a main condensing lens 420 connected to the cover 410 and covering the common hole 413; a printed circuit board 430 provided inside the cover 410; a flash 440 disposed on the printed circuit board 430 at a position parallel to the central axis C of the common hole 413 and irradiating light to the outside through the common hole 413; and a plurality of light receiving elements 451 and 452 disposed on the printed circuit board 430 and symmetrically positioned about the flash 440 .
- the plurality of light receiving elements 551 and 552 may include a plurality of first light receiving elements 551 provided at positions spaced apart from the flash 540 in the first direction D1; and a plurality of second light receiving elements 552 provided at positions spaced apart from the flash 540 in a second direction D2 that is different from the first direction D1 .
- the light source sensing device may further include a plurality of filters 560 covering a portion of each of the plurality of first light receiving elements 551 and the second light receiving elements 552 .
- the filter 560 may pass light of a visible ray band among the light received through the common hole 413 .
- the light receiving elements 551a and 551c covered by the filter 560 and the light receiving elements 551b and 551d not covered by the filter 560 may be alternately arranged with each other. .
- the light source sensing device may include an amount of first light received by the light receiving elements 551b and 551d that are not covered by the filter 560 among the plurality of light receiving elements 551 , and the filter 560 . ) calculates an index obtained by subtracting the amount of the second light from the amount of the second light received by the light receiving elements 551a and 551c covered by , and the ratio of the index to the amount of the first light It may further include a processor 580 for calculating .
- the processor 580 may individually calculate the ratio for each of the plurality of first light receiving elements 551 and the plurality of second light receiving elements 552 .
- the first light receiving area A1 of the first light receiving element 451 through the common hole 413 is the second light receiving area A1 of the second light receiving element 452 through the common hole 413 . 2 may be different from the light receiving area A2 .
- the first light receiving area A1 of the first light receiving element 451 and the second light receiving area A2 of the second light receiving element 452 are the central axes of the common hole 413 .
- (C) may be symmetrical to each other.
- the plurality of light receiving elements 651 , 652 , 653 , and 654 may be disposed to surround the flash 640 .
- the light source sensing device may further include a filter 560 covering at least one light receiving element among the plurality of light receiving elements 651 and 652 .
- the light source sensing device may further include a plurality of sub-collecting lenses 1070 that cover the plurality of light receiving elements 1051 and 1052 .
- the central axis of the sub-collecting lens 1070 may be spaced apart from the central axis of the light receiving elements 1051 and 1052 .
- the normal direction of the upper surfaces of the light receiving elements 1551 and 1552 may be inclined with respect to the central axis C of the common hole.
- an apparatus capable of simultaneously performing a lighting function and a light source detection function through a common hole may include a printed circuit board 430 disposed in the cover 410; a flash 440 disposed on the printed circuit board 430; and a plurality of light receiving elements 451 and 452 disposed on the printed circuit board 430 , symmetrically positioned about the flash 440 , and receiving light through the common hole 413 . .
- a device capable of simultaneously performing a lighting function and a light source detection function through a common hole, a cover 410 including a common hole 413; a main condensing lens 420 connected to the cover 410 and covering the common hole 413; a printed circuit board 530 provided inside the cover 410; a flash 540 disposed on the printed circuit board 530 at a position parallel to the central axis C of the common hole 413 and irradiating light to the outside through the common hole 413; a plurality of first light receiving elements 551 provided at positions spaced apart from the flash 540 in a first direction D1; a plurality of second light receiving elements 552 provided at positions spaced apart from the flash 540 in a second direction D2 opposite to the first direction D1; and a plurality of filters 560 covering half of each of the plurality of first and second light receiving elements 551 and 552 and allowing light of a visible ray band to pass therethrough.
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Abstract
Description
Claims (15)
- 공통 홀을 포함하는 커버;상기 커버에 연결되고, 상기 공통 홀을 커버하는 메인 집광 렌즈;상기 커버의 내측에 마련되는 인쇄 회로 기판;상기 공통 홀의 중심축과 나란한 위치에서 상기 인쇄 회로 기판 상에 배치되고, 상기 공통 홀을 통해 외부로 광을 조사하는 플래쉬; 및상기 인쇄 회로 기판에 배치되고, 상기 플래쉬를 중심으로 대칭적으로 위치되는 복수 개의 수광 소자를 포함하는, 공통 홀을 통해 조명 기능 및 광원 감지 기능을 동시에 수행 가능한 장치.
- 제 1 항에 있어서,상기 복수 개의 수광 소자는,상기 플래쉬로부터 제 1 방향으로 이격된 위치에 마련되는 복수 개의 제 1 수광 소자; 및상기 플래쉬로부터 상기 제 1 방향과 다른 방향인 제 2 방향으로 이격된 위치에 마련되는 복수 개의 제 2 수광 소자를 포함하는, 공통 홀을 통해 조명 기능 및 광원 감지 기능을 동시에 수행 가능한 장치.
- 제 2 항에 있어서,상기 복수 개의 제 1 수광 소자 및 제 2 수광 소자 각각의 일부를 커버하는 복수 개의 필터를 더 포함하는, 공통 홀을 통해 조명 기능 및 광원 감지 기능을 동시에 수행 가능한 장치.
- 제 3 항에 있어서,상기 필터는 상기 공통 홀을 통해 수광된 광 중 가시광선 대역의 광을 통과시키는, 공통 홀을 통해 조명 기능 및 광원 감지 기능을 동시에 수행 가능한 장치.
- 제 3 항에 있어서,상기 필터에 의해 커버되어 있는 수광 소자와, 상기 필터에 의해 커버되어 있지 않은 수광 소자는 서로 번갈아 배치되는, 공통 홀을 통해 조명 기능 및 광원 감지 기능을 동시에 수행 가능한 장치.
- 제 3 항에 있어서,상기 복수 개의 수광 소자 중 상기 필터에 의해 커버되지 않은 수광 소자에서 수광한 제 1 광의 양과, 상기 필터에 의해 커버된 수광 소자에서 수광한 제 2 광의 양과, 상기 제 1 광의 양에서 상기 제 2 광의 양을 차감한 인덱스를 계산하고, 상기 제 1 광의 양에 대한 상기 인덱스의 비율을 계산하는 프로세서를 더 포함하는, 공통 홀을 통해 조명 기능 및 광원 감지 기능을 동시에 수행 가능한 장치.
- 제 6 항에 있어서,상기 프로세서는, 상기 복수 개의 제 1 수광 소자 및 상기 복수 개의 제 2 수광 소자 각각에 대해서 상기 비율을 개별적으로 계산하는, 공통 홀을 통해 조명 기능 및 광원 감지 기능을 동시에 수행 가능한 장치.
- 제 2 항에 있어서,상기 공통 홀을 통한 상기 제 1 수광 소자의 제 1 수광 영역은, 상기 공통 홀을 통한 상기 제 2 수광 소자의 제 2 수광 영역과 상이한, 공통 홀을 통해 조명 기능 및 광원 감지 기능을 동시에 수행 가능한 장치.
- 제 8 항에 있어서,상기 제 1 수광 소자의 수광 영역은 및 상기 제 2 수광 소자의 수광 영역은 상기 공통 홀의 중심축을 기준으로 서로 대칭인, 공통 홀을 통해 조명 기능 및 광원 감지 기능을 동시에 수행 가능한 장치.
- 제 1 항에 있어서,상기 복수 개의 수광 소자는 상기 플래쉬를 둘러싸도록 배치되는, 공통 홀을 통해 조명 기능 및 광원 감지 기능을 동시에 수행 가능한 장치.
- 제 10 항에 있어서,상기 복수 개의 수광 소자 중 적어도 하나 이상의 수광 소자를 커버하는 필터를 더 포함하는, 공통 홀을 통해 조명 기능 및 광원 감지 기능을 동시에 수행 가능한 장치.
- 제 1 항에 있어서,상기 복수 개의 수광 소자를 커버하는 복수 개의 서브 집광 렌즈를 더 포함하는, 공통 홀을 통해 조명 기능 및 광원 감지 기능을 동시에 수행 가능한 장치.
- 제 12 항에 있어서,상기 서브 집광 렌즈의 중심축은 상기 수광 소자의 중심축으로부터 이격되어 있는, 공통 홀을 통해 조명 기능 및 광원 감지 기능을 동시에 수행 가능한 장치.
- 제 1 항에 있어서,상기 수광 소자의 상면의 법선 방향은 상기 공통 홀의 중심축에 대해서 기울어져 있는, 공통 홀을 통해 조명 기능 및 광원 감지 기능을 동시에 수행 가능한 장치.
- 제 1 항에 있어서,상기 복수 개의 수광 소자 중 일부의 수광 소자를 커버하고, 제 1 대역의 광을 통과시키는 제 1 필터; 및상기 복수 개의 수광 소자 중 다른 일부의 수광 소자를 커버하고, 제 2 대역의 광을 통과시키는 제 2 필터를 더 포함하는, 공통 홀을 통해 조명 기능 및 광원 감지 기능을 동시에 수행 가능한 장치.
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EP22775894.3A EP4319125A1 (en) | 2021-03-24 | 2022-02-08 | Device capable of simultaneously performing lighting function and light source detection function through common hole |
US17/749,308 US20220311924A1 (en) | 2021-03-24 | 2022-05-20 | Device capable of simultaneously performing lighting function and light source detection function through common hole |
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KR20060078059A (ko) * | 2004-12-30 | 2006-07-05 | 매그나칩 반도체 유한회사 | 이미지센서의 마이크로 렌즈 및 그 형성 방법 |
KR20080011517A (ko) * | 2006-07-31 | 2008-02-05 | 한국 고덴시 주식회사 | 반사형 광센서 패키지 및 이의 제조 방법 |
KR20180113421A (ko) * | 2017-04-06 | 2018-10-16 | 삼성전자주식회사 | 적어도 하나의 관통 홀이 형성된 하우징을 포함하는 전자 장치 |
KR20190066433A (ko) * | 2017-12-05 | 2019-06-13 | 삼성전자주식회사 | 마이크로 홀이 형성된 차광 부재를 포함하는 전자 장치 |
KR20200044536A (ko) * | 2018-10-19 | 2020-04-29 | (주)파트론 | Ppg 센서 패키지 |
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KR20180113421A (ko) * | 2017-04-06 | 2018-10-16 | 삼성전자주식회사 | 적어도 하나의 관통 홀이 형성된 하우징을 포함하는 전자 장치 |
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