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公开(公告)号：US20180259389A1
公开(公告)日：2018-09-13
申请号：US15975005
申请日：2018-05-09
Applicant: Rohm Co., Ltd.
Inventor： Yoshitsugu Uedaira , Takahiro Kitahara
IPC: G01J1/04 , G01J3/51 , H01L27/146 , G01J1/42
CPC classification number: G01J1/0492 , G01J1/4228 , G01J3/513 , G01J2003/516 , H01L27/14621 , H01L27/14645
Abstract: A photodetector includes a semiconductor substrate; a light receiving part for signal detection and an infrared light receiving part which are formed in the semiconductor substrate and are covered at least by first color filters having a common color; and second color filters which overlap with the first color filters on the infrared light receiving part and are configured to block light in a wavelength range transmitting through the first color filters.
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公开(公告)号：US09989408B2
公开(公告)日：2018-06-05
申请号：US14963348
申请日：2015-12-09
Applicant: Rohm Co., Ltd.
Inventor： Yoshitsugu Uedaira , Takahiro Kitahara
IPC: H01L27/00 , G01J1/04 , G01J1/42 , G01J3/51 , H01L27/146
CPC classification number: G01J1/0492 , G01J1/4228 , G01J3/513 , G01J2003/516 , H01L27/14621 , H01L27/14645
Abstract: A photodetector includes a semiconductor substrate; a light receiving part for signal detection and an infrared light receiving part which are formed in the semiconductor substrate and are covered at least by first color filters having a common color; and second color filters which overlap with the first color filters on the infrared light receiving part and are configured to block light in a wavelength range transmitting through the first color filters.
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公开(公告)号：US09159757B2
公开(公告)日：2015-10-13
申请号：US14464020
申请日：2014-08-20
Applicant: Rohm Co., Ltd.
Inventor： Yoshitsugu Uedaira , Takahiro Kitahara
IPC: H01L27/146
CPC classification number: H01L27/14621 , H01L27/14607 , H01L27/1463 , H01L27/14636 , H01L27/14645
Abstract: A photodetection device of the present invention includes a semiconductor substrate which is defined such that a first light-receiving portion and a second light-receiving portion are spaced from one another, and an optical filter which is formed on the semiconductor substrate, and includes a first filter which is disposed so as to cover the first light-receiving portion, to selectively allow an optic element in a first wavelength band to transmit through, and a second filter which is disposed so as to cover the second light-receiving portion, to selectively allow an optic element in a second wavelength band different from the first wavelength band, to transmit through, and the optical filter has a filter laminated structure which is defined such that edge portions of the first filter and the second filter overlap one another on a boundary region between the first light-receiving portion and the second light-receiving portion.
Abstract translation: 本发明的光检测装置包括：半导体基板，其被定义为使得第一受光部和第二光接收部彼此间隔开;以及滤光器，其形成在半导体基板上，并且包括 第一滤光器被设置成覆盖第一光接收部分，以选择性地允许第一波长带中的光学元件透射，并且第二滤光器被设置为覆盖第二光接收部分， 选择性地允许不同于第一波长带的第二波长带中的光学元件透射，并且滤光器具有滤光片层叠结构，其被定义为使得第一滤光器和第二滤光片的边缘部分彼此重叠 边界区域在第一受光部分和第二光接收部分之间。
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公开(公告)号：US11011039B2
公开(公告)日：2021-05-18
申请号：US16564911
申请日：2019-09-09
Applicant: Rohm Co., Ltd.
Inventor： Yoshitsugu Uedaira
Abstract: According to one embodiment of the present disclosure, there is provided an ultraviolet detector, including: an ultraviolet ray transmitting part configured to transmit ultraviolet ray contained in incident light; a wavelength conversion part configured to convert the ultraviolet ray transmitted through the ultraviolet ray transmitting part into visible light; and a visible light receiving part configured to detect the visible light obtained by the wavelength conversion part.
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公开(公告)号：US20180125381A1
公开(公告)日：2018-05-10
申请号：US15575548
申请日：2016-04-01
Applicant: Rohm Co., Ltd.
Inventor： Yuichiro Nakata , Yoshitsugu Uedaira
IPC: A61B5/024
CPC classification number: A61B5/02444 , A61B5/0004 , A61B5/02405 , A61B5/02416 , A61B5/02438 , A61B5/1032 , A61B5/681 , A61B5/6843 , A61B5/721 , A61B5/7225 , A61B5/7257 , A61B2562/043
Abstract: A light emitting unit emits light including first light and second light. A light receiving unit outputs a signal of a level in accordance with intensity of incoming light. A first optical sensor is configured to outputs a first signal of a level in accordance with intensity of the first light entering the light receiving unit. A second optical sensor outputs a second signal of a level in accordance with intensity of the second light entering the light receiving unit. Based on the second signal, a controller determines whether or not the living body information sensor and a surface of the living body are in close contact with each other. The controller generates the information related to the living body based on the first signal obtained when the living body information sensor and the surface of the living body are in close contact with each other.
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Patent Agency Ranking
公开(公告)号：US09952035B2
公开(公告)日：2018-04-24
申请号：US15172436
申请日：2016-06-03
Applicant: Rohm Co., Ltd.
Inventor： Yoshitsugu Uedaira
CPC classification number: G01B11/14 , G01J1/06 , G01J1/08 , G01J1/4228 , G01J2001/061 , G01S7/4813 , G01S7/4816 , G01S7/487 , G01S7/493 , G01S17/026
Abstract: A proximity sensor which is capable of facilitating a measure against crosstalk for different sets is provided. The proximity sensor includes a light emitting device, and a light receiving device including a plurality of light receiving parts, wherein the light receiving device has a function of arbitrarily selecting any of the plurality of light receiving parts.
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公开(公告)号：US09808162B2
公开(公告)日：2017-11-07
申请号：US14919861
申请日：2015-10-22
Applicant: Rohm Co., Ltd.
Inventor： Yoshitsugu Uedaira , Koji Saito
CPC classification number: A61B5/02427 , A61B5/7214 , A61B5/7257 , G01J1/4228 , G01J1/44
Abstract: A pulse wave sensor includes: a white LED emitting white light to a human body; a G sensor converting, into a first electrical signal, green light included in light emitted from the white LED and reflected within the human body; an R sensor converting, into a second electrical signal, red light included in the light emitted from the white LED and reflected within the human body; and an arithmetic control unit configured to generate a signal showing a heart rate based on a level difference between the first electrical signal and the second electrical signal. Therefore, a distance between the G sensor and the R sensor does not have to be increased, so that an apparatus can be reduced in size.
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公开(公告)号：US20160113585A1
公开(公告)日：2016-04-28
申请号：US14919861
申请日：2015-10-22
Applicant: Rohm Co., Ltd.
Inventor： Yoshitsugu Uedaira , Koji Saito
CPC classification number: A61B5/02427 , A61B5/7214 , A61B5/7257 , G01J1/4228 , G01J1/44
Abstract: A pulse wave sensor includes: a white LED emitting white light to a human body; a G sensor converting, into a first electrical signal, green light included in light emitted from the white LED and reflected within the human body; an R sensor converting, into a second electrical signal, red light included in the light emitted from the white LED and reflected within the human body; and an arithmetic control unit configured to generate a signal showing a heart rate based on a level difference between the first electrical signal and the second electrical signal. Therefore, a distance between the G sensor and the R sensor does not have to be increased, so that an apparatus can be reduced in size.
Abstract translation: 脉搏波传感器包括：向人体发出白光的白色LED; G传感器将包含在从白色LED发射并在人体内反射的光中的绿色光转换成第一电信号; R传感器将由白色LED发射并在人体内反射的红光包含在第二电信号中; 以及算术控制单元，被配置为基于所述第一电信号和所述第二电信号之间的电平差产生表示心率的信号。 因此，G传感器和R传感器之间的距离不必增加，因此可以减小装置的尺寸。
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公开(公告)号：US11058311B2
公开(公告)日：2021-07-13
申请号：US15575548
申请日：2016-04-01
Applicant: Rohm Co., Ltd.
Inventor： Yuichiro Nakata , Yoshitsugu Uedaira
Abstract: A light emitting unit emits light including first light and second light. A light receiving unit outputs a signal of a level in accordance with intensity of incoming light. A first optical sensor is configured to outputs a first signal of a level in accordance with intensity of the first light entering the light receiving unit. A second optical sensor outputs a second signal of a level in accordance with intensity of the second light entering the light receiving unit. Based on the second signal, a controller determines whether or not the living body information sensor and a surface of the living body are in close contact with each other. The controller generates the information related to the living body based on the first signal obtained when the living body information sensor and the surface of the living body are in close contact with each other.
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公开(公告)号：US10215623B2
公开(公告)日：2019-02-26
申请号：US15632499
申请日：2017-06-26
Applicant: Rohm Co., Ltd.
Inventor： Yoshitsugu Uedaira
Abstract: An optical sensor (10) includes a first switch (SW1) and a second switch (SW2), these switches are switched between a first step and a second step and thus the coupling of light receiving portions (photodiodes) and three analog-to-digital converters (ADCs) is switched. In the first step of the switch, photocurrents generated in a blue light receiving portion (BLUE), a green light receiving portion (GREEN) and a red light receiving portion (RED) are processed in real time. In the second step, photocurrents generated in an infrared light receiving portion (Ir), an environmental light receiving portion (CLEAR) and the green light receiving portion (GREEN) are processed. The photocurrents of the infrared light receiving portion (Ir) and the environmental light receiving portion (CLEAR) generated in the first step are calculated from a ratio of the two photocurrents measured in the green light receiving portion (GREEN).
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