公开(公告)号：US20140225216A1

公开(公告)日：2014-08-14

申请号：US14253064

申请日：2014-04-15

Applicant: FUJITSU LIMITED

Inventor： SHINICHIRO KAWAKAMI ,  Yasuo MATSUMIYA

IPC: H01L31/108 ,  H01L27/146

CPC classification number: H01L31/108 ,  B82Y20/00 ,  H01L27/1446 ,  H01L27/14647 ,  H01L27/14649 ,  H01L27/14694 ,  H01L31/035236 ,  H01L31/109

Abstract: A photodetector includes a substrate, a first electrode layer, a first light absorbing layer, a second electrode layer, a second light absorbing layer, and a third electrode layer that are laminated on the substrate, a first electrode wire that intercouples the first electrode layer and the second electrode layer, a second electrode wire that intercouples the second electrode layer and the third electrode layer, a first diode formed at a place where the second electrode layer and the first electrode wire are mutually brought into contact, and a second diode formed at a place where the second electrode layer and the second electrode wire are mutually brought into contact.

Abstract translation: 光电检测器包括层叠在基板上的基板，第一电极层，第一光吸收层，第二电极层，第二光吸收层和第三电极层，将第一电极层 和第二电极层，与第二电极层和第三电极层相互结合的第二电极线，形成在第二电极层和第一电极线相互接触的位置的第一二极管，以及形成 在第二电极层和第二电极线相互接触的地方。

公开(公告)号：US20200018653A1

公开(公告)日：2020-01-16

申请号：US16456928

申请日：2019-06-28

Applicant: FUJITSU LIMITED

Inventor： Yasuo MATSUMIYA

IPC: G01J5/22 ,  G01J1/44 ,  H04N5/355

Abstract: A control method of an infrared detector, for obtaining a wider dynamic range and preventing an over-range, is disclosed. The method includes: monitoring a value acquired in response to an electric current flowing in each of a plurality of infrared detection elements configuring the infrared detector, and lowering, when the value acquired in response to the electric current flowing in the infrared detection element reaches a threshold value within a detection time, sensitivity of the infrared detection element within the detection time.

公开(公告)号：US20180035065A1

公开(公告)日：2018-02-01

申请号：US15645143

申请日：2017-07-10

Applicant: FUJITSU LIMITED

Inventor： Hironori Nishino ,  Yasuo MATSUMIYA

IPC: H04N5/374 ,  H04N5/33 ,  H04N5/378 ,  H01L27/146

CPC classification number: H04N5/3742 ,  H01L27/14612 ,  H01L27/14625 ,  H01L27/14649 ,  H04N5/33 ,  H04N5/3745 ,  H04N5/378

Abstract: An imaging apparatus includes an image sensor including a common sensor element, the common sensor element having a plurality of output systems therefrom, and a signal processing circuit that generates an image signal from outputs of the image sensor, wherein the plurality of output systems individually include a transistor, a capacitor that stores charge in accordance with a current flowing through the sensor element via the transistor, and output circuitry that outputs a sensor signal in accordance with a voltage of the capacitor, wherein the transistors individually allow the current to flow in time periods different with each other, and the signal processing circuit does not use the sensor signals if the sensor signals do not match with each other, and the signal processing circuit uses the sensor signals for generating the image signal if the sensor signals match with each other.

公开(公告)号：US20190037153A1

公开(公告)日：2019-01-31

申请号：US16040700

申请日：2018-07-20

Applicant: FUJITSU LIMITED

Inventor： Yasuo MATSUMIYA

IPC: H04N5/33 ,  H04N5/378

Abstract: An array sensor includes a sensor element array that includes a plurality of sensor elements, a signal processing circuit array that includes a plurality of signal processing circuits coupled to the corresponding sensor elements, and a resistor network that supplies bias voltages to the corresponding signal processing circuits, wherein different voltages are applied to at least two voltage application nodes in the resistor network.

公开(公告)号：US20180031425A1

公开(公告)日：2018-02-01

申请号：US15609425

申请日：2017-05-31

Applicant: FUJITSU LIMITED

Inventor： Hironori Nishino ,  Yasuo MATSUMIYA

IPC: G01J5/00

CPC classification number: G01J5/0003 ,  G01J5/60 ,  G01J2005/0081

Abstract: A heat source detection device includes a processor configured to calculate, as a single-wavelength temperature, one of a first temperature obtained by converting a first output output from the infrared sensor in accordance with an incident amount of infrared rays in a first infrared wavelength band into a temperature, a second temperature obtained by converting a second output output from the infrared sensor in accordance with an incident amount of infrared rays in a second infrared wavelength band into a temperature and an average value of the first and second temperatures, and calculate a dual-wavelength temperature obtained by converting the ratio between the first and second outputs into a temperature; and to determine a temperature of the heat source based on the dual-wavelength temperature and determine a distance to the heat source from the infrared sensor based on a comparison result between the single-wavelength temperature and dual-wavelength temperature.

公开(公告)号：US20170263168A1

公开(公告)日：2017-09-14

申请号：US15408720

申请日：2017-01-18

Applicant: FUJITSU LIMITED

Inventor： Yasuo MATSUMIYA

IPC: G09G3/02 ,  G09G5/10 ,  G09G3/34

CPC classification number: G09G3/02 ,  G02B5/208 ,  G02B27/0093 ,  G02B27/0172 ,  G02B2027/0178 ,  G02B2027/0187 ,  G09G3/3406 ,  G09G3/346 ,  G09G5/10 ,  G09G2330/021 ,  G09G2360/14 ,  G09G2360/145

Abstract: An apparatus for image display includes: a drawing circuit configured to carry out drawing processes which include irradiating a retina with light through a pupil; a detector configured to detect scattered light generated due to reflection of light emitted by the drawing circuit around the pupil; and a stopping circuit configured to stop the drawing processes performed by the drawing circuit for a given period when the scattered light is detected by the detector.

公开(公告)号：US20200154062A1

公开(公告)日：2020-05-14

申请号：US16658588

申请日：2019-10-21

Applicant: FUJITSU LIMITED

Inventor： Yasuo MATSUMIYA

IPC: H04N5/33 ,  H01L27/146 ,  H04N5/374

Abstract: A control circuit for infrared detectors, includes: a driving circuit configured to drive a plurality of infrared detectors and generates, for each frame, a signal according to infrared rays incident on the plurality of infrared detectors; a holding circuit configured to hold a first signal generated by the driving circuit in a first frame and a second signal generated by the driving circuit in a second frame before the first frame; a difference calculation circuit configured to calculate a difference between the first signal and the second signal; and an amplifier circuit configured to amplify and output the difference calculated by the difference calculation circuit.