WO2016186222A1 - 이미지의 심도를 향상시키는 이미지 센서 및 그 동작 방법 - Google Patents
이미지의 심도를 향상시키는 이미지 센서 및 그 동작 방법 Download PDFInfo
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- WO2016186222A1 WO2016186222A1 PCT/KR2015/004922 KR2015004922W WO2016186222A1 WO 2016186222 A1 WO2016186222 A1 WO 2016186222A1 KR 2015004922 W KR2015004922 W KR 2015004922W WO 2016186222 A1 WO2016186222 A1 WO 2016186222A1
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- photodiode
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- photodiodes
- optical signal
- camera system
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- 238000000034 method Methods 0.000 title claims description 33
- 230000003287 optical effect Effects 0.000 claims abstract description 75
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- 238000010586 diagram Methods 0.000 description 4
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- 238000012986 modification Methods 0.000 description 1
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/50—Control of the SSIS exposure
- H04N25/57—Control of the dynamic range
-
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/03—Circuitry for demodulating colour component signals modulated spatially by colour striped filters by frequency separation
-
- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14643—Photodiode arrays; MOS imagers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/1462—Coatings
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
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- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
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- H04N25/10—Circuitry of solid-state image sensors [SSIS]; Control thereof for transforming different wavelengths into image signals
- H04N25/11—Arrangement of colour filter arrays [CFA]; Filter mosaics
- H04N25/13—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements
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- H04N5/2226—Determination of depth image, e.g. for foreground/background separation
Definitions
- the present invention relates to an image sensor included in a camera system.
- the present invention relates to an image sensor for improving a depth of field (DOF) of an image by changing a physical structure.
- DOE depth of field
- a conventional camera system including an image sensor includes two different apertures, so that each of the two different apertures can be used to create a blurry and sharp image in the image sensor. do.
- conventional camera systems use basic apertures to produce images with heavy blur and additional small apertures to produce sharp images.
- the conventional camera system can improve the depth of the image by acquiring a clear image using a small aperture.
- Embodiments of the present invention provide a technique for improving the depth of an image by changing the physical structure of the image sensor instead of using a small aperture in the camera system.
- embodiments of the present invention provide an image sensor that improves the depth of an image by including at least one mask disposed on at least one photodiode of a plurality of photodiodes.
- embodiments of the present invention provide a camera system having an auto focus function by including at least one mask.
- An image sensor included in a camera system includes a plurality of photodiodes respectively processing optical signals passing through a lens included in the camera system; And at least one photodiode of the plurality of photodiodes, the optical signal passing through an inner region of a lens included in the camera system into the at least one photodiode. It includes either mask.
- the at least one mask may block an optical signal passing through an outer region of a lens included in the camera system from being introduced into the at least one photodiode.
- the at least one mask may be formed so that the masked area surrounds the unmasked area.
- the unmasked area of the at least one mask may be formed to have any one of a circle, a triangle, a square, and a polygon.
- the at least one photodiode in which the at least one mask is disposed may generate a sharper image than an image generated in the remaining photodiodes except for the at least one photodiode among the plurality of photodiodes.
- the at least one mask may be formed such that the center position of the unmasked area in the at least one mask is shifted from the center position of the at least one photodiode.
- the image sensor may generate an image generated from the at least one photodiode on which the at least one mask is disposed and an image generated from the remaining photodiodes except for the at least one photodiode among the plurality of photodiodes. In this case, at least one of auto focusing and depth estimation may be performed.
- the image sensor may further include a plurality of color filters disposed on the plurality of photodiodes to filter an optical signal passing through a lens included in the camera system.
- the plurality of color filters may include at least one of an RGB color filter, a white color filter, or an IR color filter.
- At least one color filter disposed on the at least one mask among the plurality of color filters may be a white color filter.
- the image sensor may further include a plurality of micro lenses disposed on the plurality of color filters to advance an optical signal passing through a lens included in the camera system to each of the plurality of color filters.
- Method of operating an image sensor included in a camera system is included in the camera system by using at least one mask disposed on at least one photodiode of a plurality of photodiodes Introducing an optical signal passing through an inner region of a lens into the at least one photodiode; Introducing an optical signal passing through a lens included in the camera system into photodiodes other than the at least one photodiode of the plurality of photodiodes; Processing at the at least one photodiode an optical signal passing through an inner region of a lens included in the camera system; And processing the optical signal passing through the lens included in the camera system in the remaining photodiodes except for the at least one photodiode among the plurality of photodiodes.
- the step of introducing the optical signal passing through the inner region of the lens included in the camera system into the at least one photodiode includes the light passing through the outer region of the lens included in the camera system in the at least one mask. And blocking a signal from flowing into the at least one photodiode.
- the at least one mask may be formed so that the masked area surrounds the unmasked area.
- the unmasked area of the at least one mask may be formed to have any one of a circle, a triangle, a square, and a polygon.
- Camera system comprises a lens for introducing an optical signal; And an image sensor, wherein the image sensor comprises a plurality of photodiodes respectively processing the optical signal passing through the lens; And at least one mask disposed on at least one photodiode of the plurality of photodiodes to introduce an optical signal passing through an inner region of the lens into the at least one photodiode.
- Embodiments of the present invention may provide a technique for improving the depth of an image by changing the physical structure of the image sensor instead of using a small aperture in the camera system.
- embodiments of the present invention may provide an image sensor that improves the depth of an image by including at least one mask disposed on at least one photodiode of a plurality of photodiodes.
- embodiments of the present invention can provide a camera system having an auto focus function by including at least one mask.
- FIG. 1 is a view showing a principle for improving the depth of the image according to an embodiment of the present invention.
- FIG. 2 is a side view illustrating an image sensor according to an exemplary embodiment of the present invention.
- FIG. 3 is a top view illustrating an image sensor to describe at least one mask shown in FIG. 2.
- FIG. 4 is a flowchart illustrating a method of operating an image sensor according to an exemplary embodiment of the present invention.
- FIG. 5 is a block diagram illustrating an image sensor according to an exemplary embodiment of the present invention.
- FIG. 6 is a block diagram illustrating a camera system according to an exemplary embodiment of the present invention.
- FIG. 1 is a view showing a principle for improving the depth of the image according to an embodiment of the present invention.
- an optical signal passing through a lens 110 included in a camera system is introduced toward a plurality of photodiodes 120 in a camera system according to an exemplary embodiment of the present invention.
- a plurality of micro lenses 130 may be disposed on the plurality of photodiodes 120 to advance an optical signal passing through the lens 110 to each of the plurality of photodiodes 120.
- the plurality of micro lenses 130 may be implemented in an array form.
- the optical signal passing through the inner region of the lens 110 may flow into the inner region of each of the plurality of photodiodes 120, and may pass through the outer region of the lens 110.
- An optical signal may be introduced into an outer region of each of the plurality of photodiodes 120.
- an image generated by processing an optical signal passing through an inner region of the lens 110 in each of the plurality of photodiodes 120 may include a plurality of photodiodes having an optical signal passing through an outer region of the lens 110. Since the image is clearer than the image generated and processed in each of the 120, the camera system according to the exemplary embodiment of the present invention has the lens 110 on the at least one photodiode 121 of the plurality of photodiodes 120. By arranging at least one mask 122 for introducing an optical signal passing through an inner region of the at least one photodiode 121, an image having an improved depth may be generated. Detailed description thereof will be described below.
- FIG. 2 is a side view illustrating an image sensor according to an exemplary embodiment of the present invention.
- an image sensor may include a plurality of photodiodes 210, at least one mask 220, a plurality of color filters 230, and a plurality of micro lenses. 240).
- the plurality of micro lenses 240 may be disposed on the plurality of color filters 230 to propagate an optical signal passing through a lens included in the camera system with each of the plurality of color filters 230.
- the plurality of micro lenses 240 may be implemented in an array form.
- the plurality of color filters 230 may be disposed below the plurality of micro lenses 240 and the plurality of photodiodes 210 to filter the optical signal passing through the lens included in the camera system.
- each of the plurality of color filters 230 may filter the remaining optical signals except for a specific optical signal distinguished from each other.
- the first color filter 231 of the plurality of color filters 230 filters the remaining optical signals except for the R light signal, thereby providing the first photodiode 211 of the plurality of photodiodes 210.
- the R optical signal may be selectively introduced
- the second color filter 232 filters the remaining optical signals except for the G optical signal, thereby allowing the G light to be transmitted to the second photodiode 212 of the plurality of photodiodes 210.
- the signal can be selectively introduced.
- At least one of an RGB color filter, a white color filter, or an IR color filter may be used as the plurality of color filters 230.
- a white color filter for selectively introducing a white light signal may be used as the at least one color filter 233 disposed on the at least one mask 220 of the plurality of color filters 230.
- the plurality of photodiodes 210 respectively processes the optical signals passing through the lens included in the camera system.
- the plurality of photodiodes 210 may process the optical signal filtered by each of the plurality of color filters 230 through the optical signal passing through the lens included in the camera system.
- the at least one mask 220 is disposed on at least one photodiode 213 of the plurality of photodiodes 210 to at least one optical signal passing through an inner region of the lens included in the camera system.
- the at least one mask 220 at least receives an optical signal passing through an internal region of a lens included in the camera system among the optical signals filtered by the at least one color filter 233 disposed thereon. It may be introduced into one photodiode 213.
- the at least one mask 220 may block the optical signal passing through the outer region of the lens included in the camera system to the at least one photodiode 213. Therefore, since the image generated by at least one photodiode 213 having at least one mask 220 disposed thereon is generated by processing only an optical signal passing through an internal region of the lens included in the camera system, The image may be improved in depth (at least one of the photodiodes 210, the image generated by the at least one photodiode 213 on which the at least one mask 220 is disposed, may be an image). Except for the photodiode (which may be a sharper image than the image produced by at least one mask 220 is not disposed).
- At least one mask 220 may be formed such that the masked region 221 surrounds the unmasked region 222.
- the unmasked area 221 of the at least one mask 220 may be formed to have any one of a circle, a triangle, a square, and a polygon. Detailed description thereof will be described with reference to FIG. 3.
- FIG. 3 is a top view illustrating an image sensor to describe at least one mask shown in FIG. 2.
- a plurality of micro lenses included in the image sensor are omitted, and a plurality of color filters are disposed on the plurality of photodiodes 310 to respectively transmit a specific optical signal to the plurality of photodiodes. It will be described as a case to be introduced into each of the (310).
- At least one mask 320 included in an image sensor according to an embodiment of the present invention is disposed on at least one photodiode of the plurality of photodiodes 310.
- at least one mask 320 is illustrated as being regularly arranged on at least one photodiode of the plurality of photodiodes 310, but is not limited thereto.
- the 320 may be irregularly disposed on at least one photodiode of the plurality of photodiodes 310.
- the at least one mask 320 is formed so that the masked area 321 surrounds the unmasked area 322, and thus is included in the camera system among the optical signals flowing into the at least one mask 320.
- the optical signal passing through the outer region of the lens may be blocked, and only the optical signal passing through the inner region of the lens included in the camera system may be introduced.
- the unmasked area 322 of the at least one mask 320 may be formed to have any one of a circle, a triangle, a square, and a polygon by the masked area 321.
- At least one mask 320 has a central position of the unmasked region 322 at least any one of the mask 320 of the plurality of photodiodes 310 is disposed. It may be formed to be shifted from the center position of one photodiode.
- an image generated by processing an optical signal introduced by the at least one mask 320 in at least one photodiode having the at least one mask 320 disposed thereon may include a plurality of photodiodes ( Compared to an image generated in the remaining photodiodes except for at least one photodiode in which at least one mask 320 of 310 is disposed, the mask 320 may be used in a process such as auto focusing or depth estimation.
- the image sensor including the mask 320 may have an auto focusing function and / or a depth estimation function. Detailed description thereof will be omitted since it departs from the technical idea of the present invention.
- the image sensor processes an optical signal having a wavelength equal to any one of the remaining photodiodes in which at least one photodiode on which at least one mask 320 is disposed is disposed.
- an optical signal having a wavelength equal to any one of the remaining photodiodes in which at least one photodiode on which at least one mask 320 is disposed is disposed.
- At least one of the at least one photodiode on which at least one mask 320 is disposed and any of the remaining photodiodes on which at least one mask 320 is not disposed both process G signals.
- An image generated from at least one photodiode in which at least one mask 320 is disposed, and an image generated in any one of the remaining photodiodes in which at least one mask 320 is not disposed It is also possible to create wide dynamic range images.
- FIG. 4 is a flowchart illustrating a method of operating an image sensor according to an exemplary embodiment of the present invention.
- an image sensor uses at least one mask disposed on at least one photodiode of a plurality of photodiodes, so that the lens of the lens included in the camera system.
- the optical signal passing through the internal region is introduced into the at least one photodiode (410).
- the image sensor introduces an optical signal passing through the lens included in the camera system into the remaining photodiodes except for the at least one photodiode among the plurality of photodiodes (420).
- an optical signal passing through an inner region of a lens included in the camera system is processed (430).
- At least one photodiode except for at least one photodiode having at least one mask among the plurality of photodiodes is processed, the optical signal passing through the lens included in the camera system is processed (440).
- the image sensor according to an embodiment of the present invention uses the at least one mask to introduce an optical signal passing through the inner region of the lens included in the camera system into at least one photodiode in step 410.
- an image having an improved depth may be generated by processing only an optical signal passing through an internal region of the lens included in the camera system.
- the image sensor generates a sharper image in at least one photodiode in which at least one mask is disposed, than an image generated in the remaining photodiodes except at least one photodiode of the plurality of photodiodes. can do.
- the at least one mask is formed so that the center position of the unmasked region in the at least one mask is shifted from the center position of the at least one photodiode, so that the image sensor is at least one At least one of auto focusing or depth estimation using an image generated from at least one photodiode and an image generated from other photodiodes except at least one of the plurality of photodiodes Either one can be done.
- FIG. 5 is a block diagram illustrating an image sensor according to an exemplary embodiment of the present invention.
- an image sensor includes a plurality of photodiodes 510 and at least one mask 520.
- the plurality of photodiodes 510 processes the optical signal passing through the lens included in the camera system, respectively.
- the at least one mask 520 is disposed on at least one photodiode of the plurality of photodiodes 510 to receive at least one optical signal passing through an inner region of the lens included in the camera system. To one photodiode.
- the at least one mask 520 may block the optical signal passing through the outer region of the lens included in the camera system from entering the at least one photodiode.
- At least one mask 520 may be formed so that the masked area surrounds the unmasked area.
- the unmasked area of the at least one mask 520 may be formed to have any one of a circle, a triangle, a square, or a polygon.
- one photodiode in which at least one mask 520 is disposed may generate a sharper image than an image generated in the remaining photodiodes except at least one photodiode of the plurality of photodiodes 510. have.
- the at least one mask 520 may be formed such that the center position of the unmasked area of the at least one mask 520 is shifted from the center position of the at least one photodiode.
- the image sensor is generated in the remaining photodiodes except for an image generated in at least one photodiode having at least one mask 520 and at least one photodiode of the plurality of photodiodes 510. At least one of auto focusing and depth estimation may be performed using the image.
- the image sensor may further include a plurality of color filters.
- the plurality of color filters may be disposed on the photodiodes 510 to filter the optical signal passing through the lens included in the camera system.
- the plurality of color filters may include at least one of an RGB color filter, a white color filter, or an IR color filter.
- at least one color filter disposed on at least one mask 520 of the plurality of color filters may be a white color filter.
- the image sensor may further include a plurality of micro lenses disposed on the plurality of color filters to advance an optical signal passing through a lens included in the camera system to each of the plurality of color filters.
- a plurality of micro lenses disposed on the plurality of color filters to advance an optical signal passing through a lens included in the camera system to each of the plurality of color filters.
- FIG. 6 is a block diagram illustrating a camera system according to an exemplary embodiment of the present invention.
- a camera system includes a lens 610 and an image sensor 620 for introducing an optical signal.
- the image sensor 620 includes a plurality of photodiodes 621 and at least one mask 622.
- the plurality of photodiodes 621 each process an optical signal passing through the lens 610.
- At least one mask 622 is disposed on at least one photodiode of the plurality of photodiodes 621 to at least one optical signal passing through an inner region of the lens 610. Flows into the photodiode.
- the at least one mask 622 may block the optical signal passing through the outer region of the lens 610 from entering the at least one photodiode.
- At least one mask 622 may be formed so that the masked area surrounds the unmasked area.
- the unmasked area of the at least one mask 622 may be formed to have any one of a circle, a triangle, a square, or a polygon.
- one photodiode in which at least one mask 622 is disposed may generate a sharper image than an image generated in the remaining photodiodes except at least one photodiode of the plurality of photodiodes 6210. have.
- the at least one mask 622 may be formed such that the center position of the unmasked region in the at least one mask 622 is shifted from the center position of the at least one photodiode.
- the image sensor 620 is a photodiode other than an image generated from at least one photodiode having at least one mask 622 and at least one photodiode of the plurality of photodiodes 621. At least one of auto focusing and depth estimation may be performed using the image generated from the fields.
- the image sensor 620 may further include a plurality of color filters.
- the plurality of color filters may be disposed on the photodiodes 621 to filter the optical signal passing through the lens 610.
- the plurality of color filters may include at least one of an RGB color filter, a white color filter, or an IR color filter.
- at least one color filter disposed on at least one mask 622 of the plurality of color filters may be a white color filter.
- the image sensor 620 may further include a plurality of micro lenses disposed on the plurality of color filters to propagate an optical signal passing through the lens 610 to each of the plurality of color filters. can do.
Abstract
Description
Claims (16)
- 카메라 시스템에 포함되는 이미지 센서에 있어서,상기 카메라 시스템에 포함되는 렌즈를 통과한 광 신호를 각각 처리하는 복수의 포토다이오드들; 및상기 복수의 포토다이오드들 중 적어도 어느 하나의 포토다이오드 상부에 배치되어, 상기 카메라 시스템에 포함되는 렌즈의 내부 영역(inner region)을 통과한 광 신호를 상기 적어도 어느 하나의 포토다이오드로 유입시키는 적어도 어느 하나의 마스크를 포함하는 이미지 센서.
- 제1항에 있어서,상기 적어도 어느 하나의 마스크는상기 카메라 시스템에 포함되는 렌즈의 외곽 영역(outer region)을 통과한 광 신호가 상기 적어도 어느 하나의 포토다이오드로 유입되는 것을 차단하는, 이미지 센서.
- 제1항에 있어서,상기 적어도 어느 하나의 마스크는마스킹된 영역이 마스킹되지 않은 영역을 감싸도록 형성되는, 이미지 센서.
- 제3항에 있어서,상기 적어도 어느 하나의 마스크에서 마스킹되지 않은 영역은원, 삼각, 사각 또는 다각 중 어느 하나의 형태를 갖도록 형성되는, 이미지 센서.
- 제1항에 있어서,상기 적어도 어느 하나의 마스크가 배치되는 상기 적어도 어느 하나의 포토다이오드는상기 복수의 포토다이오드들 중 상기 적어도 어느 하나의 포토다이오드를 제외한 나머지 포토다이오드들에서 생성되는 이미지보다 선명한 이미지를 생성하는, 이미지 센서.
- 제1항에 있어서,상기 적어도 어느 하나의 마스크는상기 적어도 어느 하나의 마스크에서 마스킹되지 않은 영역의 중심 위치가 상기 적어도 어느 하나의 포토다이오드의 중심 위치와 어긋나도록 형성되는, 이미지 센서.
- 제6항에 있어서,상기 이미지 센서는상기 적어도 어느 하나의 마스크가 배치된 상기 적어도 어느 하나의 포토다이오드에서 생성되는 이미지 및 상기 복수의 포토다이오드들 중 상기 적어도 어느 하나의 포토다이오드를 제외한 나머지 포토다이오드들에서 생성되는 이미지를 이용하여, 자동 초점 조절 또는 깊이 추정 중 적어도 어느 하나를 수행하는, 이미지 센서.
- 제1항에 있어서,상기 복수의 포토다이오드들의 상부에 배치되어, 상기 카메라 시스템에 포함되는 렌즈를 통과한 광 신호를 필터링하는 복수의 컬러 필터들을 더 포함하는 이미지 센서.
- 제8항에 있어서,상기 복수의 컬러 필터들은RGB 컬러 필터, 화이트 컬러 필터 또는 IR 컬러 필터 중 적어도 어느 하나를 포함하는, 이미지 센서.
- 제8항에 있어서,상기 복수의 컬러 필터들 중 상기 적어도 어느 하나의 마스크 상부에 배치되는 적어도 어느 하나의 컬러 필터는화이트 컬러 필터인, 이미지 센서.
- 제8항에 있어서,상기 복수의 컬러 필터들 상부에 배치되어, 상기 복수의 컬러 필터들 각각으로 상기 카메라 시스템에 포함되는 렌즈를 통과한 광 신호를 진행시키는 복수의 마이크로 렌즈들을 더 포함하는 이미지 센서.
- 카메라 시스템에 포함되는 이미지 센서의 동작 방법에 있어서,복수의 포토다이오드들 중 적어도 어느 하나의 포토다이오드 상부에 배치되는 적어도 어느 하나의 마스크를 이용하여, 상기 카메라 시스템에 포함되는 렌즈의 내부 영역을 통과한 광 신호를 상기 적어도 어느 하나의 포토다이오드로 유입시키는 단계;상기 카메라 시스템에 포함되는 렌즈를 통과한 광 신호를 상기 복수의 포토다이오드들 중 상기 적어도 어느 하나의 포토다이오드를 제외한 나머지 포토다이오드들로 유입시키는 단계;상기 적어도 어느 하나의 포토다이오드에서, 상기 카메라 시스템에 포함되는 렌즈의 내부 영역을 통과한 광 신호를 처리하는 단계; 및상기 복수의 포토다이오드들 중 상기 적어도 어느 하나의 포토다이오드를 제외한 나머지 포토다이오드들에서, 상기 카메라 시스템에 포함되는 렌즈를 통과한 광 신호를 처리하는 단계를 포함하는 이미지 센서의 동작 방법.
- 제12항에 있어서,상기 카메라 시스템에 포함되는 렌즈의 내부 영역을 통과한 광 신호를 상기 적어도 어느 하나의 포토다이오드로 유입시키는 단계는상기 적어도 어느 하나의 마스크에서, 상기 카메라 시스템에 포함되는 렌즈의 외곽 영역을 통과한 광 신호가 상기 적어도 어느 하나의 포토다이오드로 유입되는 것을 차단하는 단계를 포함하는 이미지 센서의 동작 방법.
- 제12항에 있어서,상기 적어도 어느 하나의 마스크는마스킹된 영역이 마스킹되지 않은 영역을 감싸도록 형성되는, 이미지 센서의 동작 방법.
- 제14항에 있어서,상기 적어도 어느 하나의 마스크에서 마스킹되지 않은 영역은원, 삼각, 사각 또는 다각 중 어느 하나의 형태를 갖도록 형성되는, 이미지 센서의 동작 방법.
- 광 신호를 유입시키는 렌즈; 및이미지 센서를 포함하고,상기 이미지 센서는상기 렌즈를 통과한 광 신호를 각각 처리하는 복수의 포토다이오드들; 및상기 복수의 포토다이오드들 중 적어도 어느 하나의 포토다이오드 상부에 배치되어, 상기 렌즈의 내부 영역을 통과한 광 신호를 상기 적어도 어느 하나의 포토다이오드로 유입시키는 적어도 어느 하나의 마스크를 포함하는 카메라 시스템.
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PCT/KR2015/004922 WO2016186222A1 (ko) | 2015-05-15 | 2015-05-15 | 이미지의 심도를 향상시키는 이미지 센서 및 그 동작 방법 |
US15/574,399 US10516861B2 (en) | 2015-05-15 | 2015-05-15 | Image sensor for improving depth of field of image, and method for operating same |
KR1020177030278A KR102059735B1 (ko) | 2015-05-15 | 2015-05-15 | 이미지의 심도를 향상시키는 이미지 센서 및 그 동작 방법 |
CN201580080009.0A CN107667525B (zh) | 2015-05-15 | 2015-05-15 | 提高景深的图像传感器及其工作方法 |
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KR20210028808A (ko) | 2019-09-04 | 2021-03-15 | 삼성전자주식회사 | 이미지 센서 및 이를 포함하는 촬상 장치 |
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KR100731135B1 (ko) * | 2005-12-29 | 2007-06-22 | 동부일렉트로닉스 주식회사 | 씨모스 이미지 센서 및 그 제조방법 |
KR20070071206A (ko) * | 2005-12-29 | 2007-07-04 | 동부일렉트로닉스 주식회사 | 씨모스 이미지 센서 및 그 제조방법 |
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US10516861B2 (en) | 2019-12-24 |
US20180139417A1 (en) | 2018-05-17 |
KR102059735B1 (ko) | 2019-12-26 |
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