公开(公告)号：US3470374A

公开(公告)日：1969-09-30

申请号：US3470374D

申请日：1967-03-06

Applicant: NORTH AMERICAN ROCKWELL

Inventor： JONES ROGER W

IPC: G02F2/00 ,  G01J1/18 ,  G01J1/32

CPC classification number: G02F2/002

公开(公告)号：US3435239A

公开(公告)日：1969-03-25

申请号：US3435239D

申请日：1965-10-13

Applicant: LKB PRODUKTER AB

Inventor： STALBERG NILS G

IPC: G01J1/18 ,  G01N21/27 ,  G01N21/26 ,  G06G7/48 ,  H01J39/12

CPC classification number: G01N21/27 ,  G01J1/18

公开(公告)号：US2626361A

公开(公告)日：1953-01-20

申请号：US18612950

申请日：1950-09-22

Applicant: SPECIALTIES DEV CORP

Inventor： MARTINE CHESTER E

IPC: G01J1/18 ,  G01J1/42 ,  G01N21/53

CPC classification number: G01N21/534 ,  G01J1/18 ,  G01J1/42

公开(公告)号：US11860029B2

公开(公告)日：2024-01-02

申请号：US17418260

申请日：2020-12-29

Applicant: Beijing BOE Sensor Technology Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Kunjing Chung ,  Dexi Kong

IPC: G01J1/18 ,  G01J1/46 ,  G01J1/44

CPC classification number: G01J1/18 ,  G01J1/46 ,  G01J2001/446 ,  G01J2001/4473

Abstract: Provided are a light intensity detection circuit, a light intensity detection method and an light intensity detection apparatus. The light intensity detection circuit includes a photoelectric conversion sub-circuit, a source follower sub-circuit, a reset sub-circuit, a read sub-circuit and a sense sub-circuit. The photoelectric conversion sub-circuit generates a corresponding electrical signal according to an incident light signal, and outputs it to a first node; the source follower sub-circuit generates a corresponding voltage signal or current signal according to the electrical signal of the first node and outputs it to a second node; the read sub-circuit reads the voltage signal or current signal of the second node to determine an incident light intensity; the reset sub-circuit provides a voltage at a offset voltage terminal to the first node.

公开(公告)号：US11543289B1

公开(公告)日：2023-01-03

申请号：US17901576

申请日：2022-09-01

Applicant: MLOptic Corp

Inventor： Pengfei Wu ,  Wei Zhou ,  Daniel Hack

IPC: G02B6/04 ,  G01J1/02 ,  G06T7/73 ,  G01J1/18

Abstract: A method for locating a center of a field of view of an optical element using a system having a surface disposed at a first illumination, an image receiver, a blocker disposed at a second illumination, the method including disposing the blocker at, at least one location in the field of view upon the surface in a first direction when the brightness of an image within the field of view of the optical element is disposed at a brightness and recording a first location of the blocker; repeating the disposing step in a second direction and at the brightness, wherein the second direction is opposite the first direction and each of the first direction and the second direction is parallel to the surface; and averaging the first location and the second location to yield the center of the field of view of the optical element in the first direction.

公开(公告)号：US20220214212A1

公开(公告)日：2022-07-07

申请号：US17644185

申请日：2021-12-14

Applicant: YOKOGAWA ELECTRIC CORPORATION ,  Yokogawa Test & Measurement Corporation

Inventor： Atsushi Horiguchi

IPC: G01J1/18

Abstract: An optical measurement apparatus having an improved light intensity detection performance is provided. The optical measurement apparatus includes a light receiving element capable of converting a light intensity of light to be analyzed into an electrical signal; an input terminal to which the electrical signal is input; a first amplifier and a nonlinear element configuring a logarithmic amplifier; offset resistors; a switch unit; and a controller. An inverting input terminal of the first amplifier is electrically connected to the input terminal. The offset resistors have different resistance values. The switch unit can switch an offset resistor electrically connected between the voltage source and the input terminal, of the offset resistors. An offset current is input to the input terminal by the offset resistor electrically connected between the voltage source and the input terminal. The controller measures the light intensity based on an output voltage value of the first amplifier.

公开(公告)号：US11322938B2

公开(公告)日：2022-05-03

申请号：US17525341

申请日：2021-11-12

Applicant: Enphase Energy, Inc.

Inventor： Ayyapu Reddy Pallam ,  Sandeep Chandran ,  Rishabh Goel ,  Samuel Mattathil Joseph ,  Sumit Saraogi ,  Ashish Bansal ,  Jayant Somani ,  Badrinarayanan Kothandaraman ,  Ankit Prakash Gupta ,  Jan Spencer Rosen

IPC: H02J3/00 ,  H02S50/10 ,  H02S40/32 ,  G01J1/18

Abstract: A method and apparatus for estimating capacity of a system including an energy generation system, an energy storage system or both. The method and apparatus initially estimate the system capacity based on a facility location and size. The initial estimate may be adjusted through adjustment of at least one parameter. An updated capacity estimate is generated and displayed.

公开(公告)号：US11158992B2

公开(公告)日：2021-10-26

申请号：US15658032

申请日：2017-07-24

Applicant: Axon Enterprise, Inc.

Inventor： Magne Nerheim

IPC: H01S5/0683 ,  G01J1/32 ,  F41G3/32 ,  G01J1/18 ,  G01J1/42 ,  H01S5/042 ,  H01S5/06 ,  H01S5/068 ,  H05C1/00 ,  F41G1/35 ,  F41G1/54 ,  F41H13/00

Abstract: Systems and methods for calibrating, operating, and setting the magnitude of the power of light provided by a laser diode in a conducted electrical weapon (“CEW”). The light of the laser diode assists in targeting by providing a visible indication of the projected point of impact of the tethered electrode of the CEW. The calibration process enables laser diode of a CEW to operate within regional guidelines of the maximum output power of light permitted by a laser. The method further permits the magnitude of the power of the light provided by a laser diode to be set and operated in changing environmental conditions in the field.

公开(公告)号：US20210270668A1

公开(公告)日：2021-09-02

申请号：US17302915

申请日：2021-05-14

Applicant: Solar Light Company, Inc.

Inventor： Michael H. BONITATIBUS ,  Curtis COLE

IPC: G01J1/42 ,  A61K8/27 ,  A61K8/35 ,  A61K8/368 ,  A61K8/40 ,  A61K8/41 ,  A61Q17/04 ,  G01J1/02 ,  G01J1/04 ,  G01J1/08 ,  G01J1/18

Abstract: A system, apparatus and method of improved measurement of the SPF factor of sunscreen compositions. In one embodiment, a method of measuring the protection of a sunscreen composition includes exposing skin to a known intensity of light, measuring the amount of remitted light from the skin, applying sunscreen to the skin, exposing the skin to which the sunscreen has been applied the known intensity of emitted light of the spectrum of light from which the sunscreen is intended to protect the skin, measuring the amount of light remitted from the skin, and calculating a UltraViolet-A Protection Factor (UVA-PF) of the sunscreen by comparing the amount of light remitted from the skin with the sunscreen to the amount of light remitted from the skin without the sunscreen.

公开(公告)号：US11105935B2

公开(公告)日：2021-08-31

申请号：US16519702

申请日：2019-07-23

Applicant: CANON KABUSHIKI KAISHA

Inventor： Norio Negishi

IPC: G01T1/17 ,  G01T1/29 ,  G01J1/42 ,  G01J1/18 ,  G01J1/04 ,  G01T1/24 ,  H04N5/345 ,  G01J1/44

Abstract: An image sensor comprises a plurality of pixels, each pixel including: a light-receiving element that outputs an output voltage that varies in response to a photon entering; at least one comparator that compares the output voltage with a plurality of mutually-different threshold voltages and outputs a single signal each time the output voltage varies so as to exceed either of the threshold voltages; and at least one counter that counts a number of signals output by the comparator upon comparing the output voltage with the plurality of threshold voltages and outputs a count value, for each of the threshold voltages.