公开(公告)号：US10084006B2

公开(公告)日：2018-09-25

申请号：US15513109

申请日：2015-07-28

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Masaaki Uchihashi ,  Kazuhiro Natsuaki ,  Masayo Uchida ,  Takahiro Takimoto

IPC: H01L27/146 ,  H01L31/101

CPC classification number: H01L27/14643 ,  G01J1/0488 ,  G01J1/1626 ,  G01J1/42 ,  G01J1/4228 ,  G01J1/429 ,  G01J2001/1657 ,  H01L27/144 ,  H01L27/1446 ,  H01L27/14625 ,  H01L31/02165 ,  H01L31/101 ,  H01L31/1013

Abstract: Provided are an optical receiver that can realize a reduction in the variation of sensitivity in the ultraviolet light region and a reduction in noise in the visible light region and the infrared light region, a portable electronic device, and a method of producing an optical receiver. The first light-receiving device (PD1) and the second light-receiving device (PD2) of the optical receiver (1) are each constituted by forming a second conductivity-type N-type well layer (N_well) on a first conductivity-type P-type substrate (P_sub), forming a first conductivity-type P-type well layer (P_well) in the N-type well layer (N_well), and forming a second conductivity-type N-type diffusion layer (N) in the P-type well layer (P_well). The P-type substrate P_sub, the N-type well layer (N_well), and the P-type well layer (P_well) are electrically at the same potential or are short-circuited.

公开(公告)号：US5434419A

公开(公告)日：1995-07-18

申请号：US167364

申请日：1993-12-16

Applicant: Jean Decupper

Inventor： Jean Decupper

IPC: A61L2/24 ,  G01J1/16 ,  G01J1/42 ,  G01J3/02

CPC classification number: G01J1/429 ,  A61L2/24 ,  G01J2001/1657

Abstract: The invention relates to a process for monitoring the flowrate and intensity of an electro-magnetic emission, particularly of very short wave-length, in the vicinity of visible light, such as a wave emission in the ultra-violet, for germicidal or bacteriostatic or atmosphere purifying purposes, characterized in that a first and a second sensor are exposed to the radiations to be monitored, each sensor constituted by a transducer, particularly of the photovoltaic type, while a series of filters is interposed in front of said sensors, such that a first sensor is rendered exclusively sensitive to the radiations of the wave-length to be monitored, while the second sensor is rendered insensitive to said radiations, the currents issued by each of these transducers are permanently compared, the differential between the two currents being proportional to the intensity of the radiation monitored, which makes it possible to display this intensity. The invention also relates to a device for carrying out this process.

Abstract translation: 本发明涉及一种用于监测可见光附近的特别是非常短的波长的电磁发射的流量和强度的过程，例如紫外线中的波发射，用于杀菌或抑菌或 气氛净化目的，其特征在于，第一传感器和第二传感器暴露于待监视的辐射，每个传感器由特别是光伏型的换能器构成，而一系列过滤器插入在所述传感器之前，使得 第一传感器对被监视的波长的辐射完全敏感，而第二传感器对所述辐射不敏感，这些传感器中的每一个发出的电流被永久地比较，两个电流之间的差值成正比 到被监测的辐射的强度，这使得可以显示这种强度。 本发明还涉及一种用于执行该过程的装置。

公开(公告)号：US20180092308A1

公开(公告)日：2018-04-05

申请号：US15711291

申请日：2017-09-21

Applicant: Sensor Electronic Technology, Inc.

Inventor： Arthur Peter Barber, III ,  Maxim S. Shatalov ,  Alexander Dobrinsky ,  Michael Shur

IPC: A01G7/04 ,  G01N21/64 ,  A01G9/20 ,  A23B7/015 ,  A23L3/28 ,  H05B37/02

CPC classification number: A01G7/045 ,  A01G9/20 ,  A23B7/015 ,  A23L3/28 ,  G01J1/0228 ,  G01J1/10 ,  G01J1/16 ,  G01J1/20 ,  G01J1/24 ,  G01J1/26 ,  G01J1/42 ,  G01J1/429 ,  G01J2001/1657 ,  G01J2001/4252 ,  G01N21/6486 ,  H05B33/0854 ,  H05B37/0227 ,  H05B37/0281 ,  Y02P60/149

Abstract: An approach for controlling ultraviolet intensity over a surface of a light sensitive object is described. Aspects involve using ultraviolet radiation with a wavelength range that includes ultraviolet-A and ultraviolet-B radiation to irradiate the surface. Light sensors measure light intensity at the surface, wherein each sensor measures light intensity in a wavelength range that corresponds to a wavelength range emitted from at least one of the sources. A controller controls the light intensity over the surface by adjusting the power of the sources as a function of the light intensity measurements. The controller uses the light intensity measurements to determine whether each source is illuminating the surface with an intensity that is within an acceptable variation with a predetermined intensity value targeted for the surface. The controller adjusts the power of the sources as a function of the variation to ensure an optimal distribution of light intensity over the surface.

公开(公告)号：US5148023A

公开(公告)日：1992-09-15

申请号：US506240

申请日：1990-04-09

Applicant: Mutsumi Hayashi ,  Ryoji Takamura ,  Chikayasu Yamazaki ,  Minoru Ueda ,  Ichiro Kumo

Inventor： Mutsumi Hayashi ,  Ryoji Takamura ,  Chikayasu Yamazaki ,  Minoru Ueda ,  Ichiro Kumo

IPC: G04G99/00 ,  A61N5/06 ,  G01J1/02 ,  G01J1/04 ,  G01J1/16 ,  G01J1/42 ,  G01J1/44

CPC classification number: G01J1/4228 ,  G01J1/429 ,  G01J1/0488 ,  G01J2001/1657

Abstract: An ultraviolet ray measuring apparatus is provided which comprises first and second photodiodes having substantially the same spectral sensitivity at least in an ultraviolet band, and a first optical filter arranged in front of a light-receiving face of the second photodiode, for shielding only light of at least a part of the ultraviolet band. The apparatus measures the light intensity and its accumulated value in accordance with the difference between electric signals output from the first and second photodiodes. It is preferable that a second optical filter, which has a main transmitting band in the ultraviolet band and a sub-transmitting band in the visible light range, be arranged in front of the light-receiving faces of the first and second photodiode. A multi-step bar graph display device displays indices, such as an MED multiple value and an SPF value, which represent the measured light intensity and accumulated value in association with a reference MED value, so that this apparatus can suitably serve as a sunburn monitor.