公开(公告)号：US5204733A

公开(公告)日：1993-04-20

申请号：US631599

申请日：1990-12-20

Applicant: Jean-Pierre Deshayes

Inventor： Jean-Pierre Deshayes

IPC: G01J1/00 ,  G01J1/02 ,  G01J1/04 ,  G01J1/08 ,  G01J5/02 ,  G01M11/00

CPC classification number: G01J1/08

Abstract: To calibrate a radiometric optical instrument by means of a light source, the focal plane of the optical instrument containing photoelectric detectors which convert image brightness into an electrical signal, the light source is disposed in the entrance pupil or in the aperture diaphragm of the instrument. The invention is particularly suitable for calibrating an optical instrument on board a satellite.

Abstract translation: 为了通过光源校准辐射光学仪器，光学仪器的焦平面包含将图像亮度转换为电信号的光电检测器，光源设置在仪器的入射光瞳或孔径光阑中。 本发明特别适用于校准卫星上的光学仪器。

公开(公告)号：US5148233A

公开(公告)日：1992-09-15

申请号：US603884

申请日：1990-10-25

Applicant: Takayuki Imamura ,  Yuji Ohuchi

Inventor： Takayuki Imamura ,  Yuji Ohuchi

IPC: G01N21/59 ,  G01J1/02 ,  G01J1/08 ,  G01J1/16 ,  G01J1/24 ,  G01M11/00 ,  G01M11/02 ,  G01N21/27

CPC classification number: G01J1/08 ,  G01N21/274 ,  G01J1/24 ,  G01J2001/1621

Abstract: The invention is designed to calibrate a low-level optical power by a substitution method using a pulse generating section in which a light-shielding disk having a sectorial opening, as a component capable of accurate optical attenuation, is rotated in a light beam to generate an intermittent pulse signal having a duty ratio corresponding to the size of the opening, and the pulse signal is averaged to obtain an optical attenuation equal to the duty ratio. More specifically, while an object to be calibrated is set in a given standard state, a first pulse train having a duty ratio d1=Tw.sub.1 /Tf.sub.1 is input to the object, and an average optical power value A of an output from the object is measured and stored. Subsequently, a second pulse train having a duty ratio d2=Tw.sub.2 /Tf.sub.2 is input to the object, and the object is adjusted such that an average optical power value of an output from the object becomes the value A. Proper calibration can be performed by assigning the optical attenuation of the adjusted object to d1/d2.

公开(公告)号：US5029245A

公开(公告)日：1991-07-02

申请号：US457694

申请日：1989-12-26

Applicant: Heimo Keranen ,  Jouko Malinen

Inventor： Heimo Keranen ,  Jouko Malinen

IPC: G01J1/08 ,  G01J1/32 ,  G01J3/10 ,  G01N21/25

CPC classification number: G01N21/255 ,  G01J1/08 ,  G01J1/32 ,  G01J3/0259 ,  G01J3/10 ,  G01N2201/0621

Abstract: The present invention concerns a procedure for controlling a radiation source which has been implemented with the aid of light-emitting diodes, or LEDs, from the radiation produced by them being separated the desired wavelength range, of which the intensity is controlled or maintained constant. The radiation source is implemented by means of a LED row (2) formed of semiconductor chips, or LED elements (21, 22, 23, . . . , 26), from the radiation of which is separated a wavelength range (.DELTA..lambda..sub.1, .DELTA..lambda..sub.2, . . . ) depending on the location of the LED element in said arrays with an optical means dispersing the radiation to a spectrum, and the intensity of the radiation in this wavelength range, or of the output radiation, is controlled or maintained constant by observing the intensity thereof and regulating with its aid the current passing through the respective LED element. The wavelength ranges of the output radiation are selected electrically by activating a suitable LED element (21, 22, 23, . . . , 26) in the LED row (2).

Abstract translation: PCT No.PCT / FI88 / 00103 Sec。 371 1990年1月19日第 102（e）日期1990年1月19日PCT Filed 1988年6月23日PCT公布。 出版物WO88 / 10462 日期为1988年12月29日。本发明涉及一种用于控制辐射源的方法，该辐射源已经借助发光二极管或LED由其产生的辐射而被实现，所述辐射源被分离出所需的波长范围， 强度被控制或保持恒定。 辐射源通过由半导体芯片或LED元件（21,22,23 ...，26）形成的LED排（2）来实现，其中LED元件（21,22,23 ...，26）从其辐射被分离出波长范围（DELTAλ1 ，DELTAλ2，...），这取决于LED元件在所述阵列中的位置，其中光学装置将辐射分散到光谱，并且控制该波长范围或输出辐射的辐射强度被控制 或通过观察其强度并通过其辅助调节通过相应的LED元件的电流来保持恒定。 通过激活LED行（2）中的合适的LED元件（21,22,23，...，26），输出辐射的波长范围被电选择。

公开(公告)号：US4560874A

公开(公告)日：1985-12-24

申请号：US614716

申请日：1984-05-29

Applicant: Robert J. Cinzori ,  Mark T. Kern

Inventor： Robert J. Cinzori ,  Mark T. Kern

IPC: G01J5/00 ,  G01N21/59 ,  G01J1/00

CPC classification number: G01J5/02 ,  G01J1/02 ,  G01J1/0228 ,  G01J1/08 ,  G01J5/026 ,  G01J5/04 ,  G01J5/08 ,  G01J5/0896 ,  G01N21/59

Abstract: A simple lightweight apparatus for sensing excessive contamination on the faces of an array of light or infrared detectors comprises mounting a light or infrared-emitting diode near one or more of the detectors. When the diode is energized, the associated detectors should detect its radiation, thereby indicating that the detector is operable and that contamination is not excessive.

Abstract translation: 用于感测光或红外检测器阵列上的过度污染的简单轻量级装置包括将一个或多个检测器附近的光或红外发射二极管安装在一起。 当二极管通电时，相关的检测器应检测其辐射，从而指示检测器可操作，并且污染物不会过度。

公开(公告)号：US2092588A

公开(公告)日：1937-09-07

申请号：US827335

申请日：1935-02-26

Applicant: LEITZ ERNST GMBH

Inventor： SIEGFRIED ROSCH

IPC: G01J1/08

CPC classification number: G01J1/08

公开(公告)号：US2051208A

公开(公告)日：1936-08-18

申请号：US3799235

申请日：1935-08-26

Applicant: GREENWOOD JOSEPH A

Inventor： GREENWOOD JOSEPH A

IPC: G01J1/08

CPC classification number: G01J1/08

公开(公告)号：US1551843A

公开(公告)日：1925-09-01

申请号：US68371723

申请日：1923-12-31

Applicant: NYSWANDER REUBEN E

Inventor： NYSWANDER REUBEN E

IPC: G01J1/08

CPC classification number: G01J1/08

公开(公告)号：US11913868B2

公开(公告)日：2024-02-27

申请号：US17302651

申请日：2021-05-10

Applicant: CYTEK BIOSCIENCES, INC.

Inventor： Ming Yan ,  Yung-Chieh Hsieh ,  David Vrane ,  Eric Chase

IPC: G01N15/00 ,  G01J3/00 ,  G01J1/08 ,  G01N21/47 ,  G01N15/14 ,  G01J3/02 ,  G01J3/36 ,  G01N15/10 ,  G01J3/12

CPC classification number: G01N15/1436 ,  G01J1/08 ,  G01J3/021 ,  G01J3/0208 ,  G01J3/0218 ,  G01J3/0256 ,  G01J3/0291 ,  G01J3/36 ,  G01N15/1434 ,  G01N15/1459 ,  G01N21/47 ,  G01J2003/1213 ,  G01N2015/1006 ,  G01N2015/145

Abstract: In one embodiment, a flow cytometer is disclosed having a compact light detection module. The compact light detection module includes an image array with a transparent block, a plurality of micro-mirrors in a row coupled to a first side of the transparent block, and a plurality of filters in a row coupled to a second side of the transparent block opposite the first side. Each of the plurality of filters reflects light to one of the plurality of micro-mirrors and passes light of a differing wavelength range and each of the plurality of micro-mirrors reflects light to one of the plurality of filters, such that incident light into the image array zigzags back and forth between consecutive filters of the plurality of filters and consecutive micro-mirrors of the plurality of micro-mirrors. A radius of curvature of each of the plurality of micro-mirrors images the fiber aperture onto the odd filters and collimates the light beam on the even filters.

公开(公告)号：US20240035882A1

公开(公告)日：2024-02-01

申请号：US17950217

申请日：2022-09-22

Applicant: ANPEC ELECTRONICS CORPORATION

Inventor： YU-YU CHEN ,  Jia-Hua Hong ,  CHIH-YUAN CHEN

IPC: G01J1/16 ,  G01J1/42

CPC classification number: G01J1/16 ,  G01J1/4204 ,  G01J2001/1668 ,  G01J1/08

Abstract: A light sensing method having a sensing order adjusting mechanism is provided. The method includes steps of: in a previous sensing cycle, sensing a first light signal that is emitted by both of an ambient light source and a light-emitting component and then is reflected by a tested object; in the previous sensing cycle, sensing a second light signal that is emitted by both of the ambient light source and the light-emitting component and then is reflected by the tested object; in the previous sensing cycle, sensing an ambient light signal emitted by only the ambient light source; and in a next sensing cycle, sensing the first light signal, the second light signal and the ambient light signal in an order different from that in the previous sensing cycle.

公开(公告)号：US11735099B1

公开(公告)日：2023-08-22

申请号：US17212599

申请日：2021-03-25

Applicant: DHPC Technologies, Inc.

Inventor： Yei Wo

IPC: G09G3/32 ,  G09G3/00 ,  G01J1/08

CPC classification number: G09G3/32 ,  G09G3/03 ,  G01J1/08 ,  G01J2001/083

Abstract: A display that can play dynamic video imagery using purely infrared light. Such dynamic video imagery is useful in testing infrared detection equipment. The display contains thousands of solid state infrared LEDs. Different infrared LED types are used. Each type of LED in use emits infrared light in some selected band of the infrared spectrum. The overall display can be designed to simulate infrared signal sources for a particular type of infrared detection system. If a particular infrared detection system detects infrared energy only in a specific range, the infrared LED display can be made to have a high resolution of LEDs within that specific range and a lower resolution of LEDs outside that specific range that would be useful for calibration purposes.