公开(公告)号：US3663106A

公开(公告)日：1972-05-16

申请号：US3663106D

申请日：1970-05-26

Applicant: HITACHI LTD

Inventor： MINAMI SHIGEO ,  FUKUDA KENJI

IPC: G01J1/10 ,  G01J3/42 ,  G01N21/34

CPC classification number: G01J3/42

Abstract: An optical null method spectrophotometer with which the difference between the intensity of a test sample beam representing the quantity of light transmitted through a test sample and the intensity of a reference sample beam representing the quantity of light transmitted through a reference sample is detected and amplified to drive a servo mechanism to thereby displace an optical attenuator inserted in the path of the reference beam, so as to vary the reference sample beam until the test sample beam and the reference sample beam are balanced with each other to thereby obtain transmission spectra or absorption spectra of the test sample, characterized in that separate means is provided for producing an electrical signal proportional to the variation in the reference sample beam resulting from the displacement of the optical attenuator and that the electrical signal produced by the separate means is recorded by a recorder.

Abstract translation: 一种光学零方法分光光度计，其中检测表示通过测试样品透射的光量的测试样品光束的强度与表示通过参考样品透射的光量的参考样品光束的强度之间的差异并将其放大到 驱动伺服机构从而使插入在参考光束路径中的光衰减器移位，从而改变参考样本光束，直到测试样本光束和参考采样光束彼此平衡，从而获得透射光谱或吸收光谱 的特征在于，提供分离装置用于产生与由光衰减器的位移产生的参考样本光束的变化成比例的电信号，并且由分离装置产生的电信号由记录器记录。

公开(公告)号：US3591801A

公开(公告)日：1971-07-06

申请号：US3591801D

申请日：1968-03-21

Applicant: PICKER CORP

Inventor： WATSON EMMET S

IPC: G01J1/10 ,  G01N21/25 ,  G01N21/27 ,  G01N21/33 ,  G01N21/26

CPC classification number: G01N21/33 ,  G01N21/255

Abstract: A simple, high performance double beam optical absorption photometer for use in chemical analysis instruments is described. Two small cylindrical chambers for sample and reference liquids are positioned side by side and along a single optical axis. Collimated ultraviolet radiation from a single source is passed lengthwise through both chambers and the relative absorption of sample and reference liquids sensed by a dual photodetector. A Wheatstone bridge circuit containing the photodetector elements is excited by a feedback power supply and provides linear absorbance readout.

公开(公告)号：US3591295A

公开(公告)日：1971-07-06

申请号：US3591295D

申请日：1969-02-05

Applicant: ITEK CORP

Inventor： BRANSDORFER ARTHUR

IPC: G03B27/72 ,  G01N21/06 ,  G01J1/10 ,  G01N21/22

CPC classification number: G03B27/72

Abstract: Apparatus for selecting the correct exposure time for each particular negative in a reader-printer. A hairline image which is movable is provided on the viewing screen of the readerprinter, and an image of the negative to be printed is projected on the viewing screen by a projector, the intensity of which is controlled by a variable resistor. When the image of the negative is viewed on the screen, the hairline is moved so that part of it crosses the darkest area of the projected image. The projector''s light is then dimmed until the operator is unable to distinguish the hairline from the surrounding background of the dark portion of the projected image. The reading of the variable resistor at that point is calibrated to give the correct exposure time for the negative being printed.

公开(公告)号：US3493753A

公开(公告)日：1970-02-03

申请号：US3493753D

申请日：1967-08-11

Applicant: MELPAR INC

Inventor： STOWE RICHARD W

IPC: G01T7/12 ,  G08B17/12 ,  G01J1/10

CPC classification number: G08B17/12 ,  G01T7/125

公开(公告)号：US20240196105A1

公开(公告)日：2024-06-13

申请号：US18078670

申请日：2022-12-09

Applicant: NVIDIA Corporation

Inventor： Douglas Taylor ,  Animesh Khemka ,  Eric Dujardin

IPC: H04N23/88 ,  G01J1/10 ,  G06T7/90

CPC classification number: H04N23/88 ,  G01J1/10 ,  G06T7/90 ,  G06T2207/10024

Abstract: Improved fallback mechanisms for auto white balancing are presented. In at least one embodiment, white balance correction factors produced by a first white balance technique are blended with white balance correction factors produced by a second white balance technique based on a confidence level in the white balance correction factors produced by the first white balance technique.

公开(公告)号：US10165264B1

公开(公告)日：2018-12-25

申请号：US15294379

申请日：2016-10-14

Applicant: Patricia D. Pratt

Inventor： Patricia D. Pratt

IPC: G01J1/10 ,  H04N17/00

Abstract: A floating calibration target for an image sensor can include a plurality of hexagonally shaped floatation devices that each emit light at one or more predetermined wavelengths. The floating calibration target can also include a seine net circumscribing the plurality of hexagonally shaped floatation devices. The seine net draws the plurality of hexagonally shaped floatation devices toward each other to form a substantially contiguous surface for the floating calibration target.

公开(公告)号：US10012588B2

公开(公告)日：2018-07-03

申请号：US15303726

申请日：2015-04-27

Applicant: COLORIGHT LTD.

Inventor： Efraim Miklatzky ,  Elena Ishkov ,  Daniel Mandelik ,  Gilad Davara

IPC: G01J1/10 ,  G01N21/47 ,  G01J3/46 ,  G01N21/25 ,  G01N21/55 ,  A45D44/00 ,  G01N33/483

CPC classification number: G01N21/47 ,  A45D44/005 ,  A45D2044/007 ,  G01J3/0264 ,  G01J3/463 ,  G01J3/504 ,  G01N21/25 ,  G01N21/4738 ,  G01N21/55 ,  G01N33/4833 ,  G01N2021/4711 ,  G01N2021/4735 ,  G01N2201/12

Abstract: An apparatus and method for customized hair-coloring is disclosed. In some embodiments the method comprises: a. performing a plurality of light-scattering measurements upon a sample of hair such that for each light-scattering measurement, the sample of hair is illuminated from a different respective direction; b. comparing the results of the light-scattering measurements; c. in accordance with results of the comparing, computing an initial damage-state of hair of the sample by comparing the results of the light-scattering measurements; d. obtaining an initial color-state of the hair of the sample; and e. computing a hair-coloring composition that is predicted to transform the hair sample from the initial color-state to a target color-state such that in response to a determining of a greater (lesser) extent of initial damage, a concentration of artificial-colorant(s) within the computed coloring composition is reduced (increased).

公开(公告)号：US09532020B2

公开(公告)日：2016-12-27

申请号：US14651107

申请日：2013-12-24

Applicant: Takayuki Hara

Inventor： Takayuki Hara

IPC: G01J1/10 ,  H04N9/31 ,  G01M11/02 ,  G01B11/00 ,  G01J1/42 ,  G01B11/25 ,  G03B21/14 ,  G09G3/00 ,  G03B17/54 ,  G03B43/00 ,  H04N5/74 ,  G03B21/00

CPC classification number: H04N9/3185 ,  G01B11/002 ,  G01B11/2504 ,  G01J1/4257 ,  G01M11/02 ,  G03B17/54 ,  G03B21/005 ,  G03B21/14 ,  G03B43/00 ,  G09G3/002 ,  G09G2320/0666 ,  G09G2320/068 ,  G09G2320/0693 ,  H04N5/7416 ,  H04N9/3194

Abstract: A calibration apparatus calibrating a projection unit projecting light-rays includes: an imaging unit taking an image of a surface of an object having a location and an attitude, the light-rays projected onto the surface by the projection unit; a location-and-attitude estimation unit estimating the location and the attitude of the surface based on the image; a reflection-point estimation unit estimating, based on the estimated location and the attitude, a reflection point at which one of the light-rays is reflected by the surface; and an identification unit identifying both a passing point that the one of the light-rays passes and a direction in which the one of the light-rays passes the passing point, or identifying only the direction, based on multiple reflection points obtained by the reflection-point estimation unit with respect to multiple different locations and/or multiple different attitudes of the surface.

Abstract translation: 校准投射光线的投影单元的校准装置包括：摄像单元，其拍摄具有位置和姿态的物体的表面的图像，投影单元投射到表面上的光线; 位置和姿态估计单元，基于图像估计表面的位置和姿态; 反射点估计单元，基于所估计的位置和姿态来估计所述光线中的一个被所述表面反射的反射点; 以及识别单元，其基于通过反射获得的多个反射点，识别光线中的一个通过的通过点和一个光线通过通过点的方向，或仅识别方向 点估计单元相对于表面的多个不同位置和/或多个不同态度。

公开(公告)号：US09448152B2

公开(公告)日：2016-09-20

申请号：US14403559

申请日：2013-06-05

Applicant: Mark James Tipper ,  Martin Robert Clay

Inventor： Mark James Tipper ,  Martin Robert Clay

IPC: G01J1/10 ,  G01N15/06

CPC classification number: G01N15/06 ,  G01N2015/0687

Abstract: A Total Suspended Solids (TSS) Device which includes a plurality of calibrated sample containers in a case, such that each calibrated sample container contains a calibrated sample, wherein each calibrated sample is a sample with a known suspended solids concentration prepared from a site sample, such that said TSS device is configured to allow a discharge sample in a discharge sample container to be visually compared to each of the calibrated samples in the calibrated sample containers in said case, where the discharge sample is a sample of a liquid discharge from a site.

Abstract translation: 总悬浮固体（TSS）装置，其在壳体中包括多个经校准的样品容器，使得每个经校准的样品容器含有校准的样品，其中每个经校准的样品是具有从现场样品制备的已知悬浮固体浓度的样品， 使得所述TSS装置被配置为允许在放电样品容器中的放电样品与所述情况下的校准样品容器中的每个校准样品目视比较，其中放电样品是来自位点的液体排出物的样品 。

公开(公告)号：US20150015890A1

公开(公告)日：2015-01-15

申请号：US14475434

申请日：2014-09-02

Applicant: BEIHANG UNIVERSITY

Inventor： Zheng Zheng ,  Xin Zhao ,  Lei Liu ,  Jiansheng Liu

IPC: G01J1/10

CPC classification number: G01J11/00 ,  G01J1/10 ,  G01J3/0224 ,  G01J3/0245 ,  G01J3/10 ,  G01J3/108 ,  G01J3/42 ,  G01J3/433 ,  G01J3/447 ,  G02F1/353 ,  G02F1/365 ,  G02F1/37 ,  G02F2203/13 ,  H01S3/0092 ,  H01S3/06791 ,  H01S3/0809 ,  H01S3/1106 ,  H01S3/1112 ,  H01S3/2391

Abstract: A method and a system for measuring an optical asynchronous sample signal. The system for measuring an optical asynchronous sampling signal comprises a pulsed optical source capable of emitting two optical pulse sequences with different repetition frequencies, a signal optical path, a reference optical path, and a detection device. Since the optical asynchronous sampling signal can be measured by merely using one pulsed optical source, the complexity and cost of the system are reduced. A multi-frequency optical comb system using the pulsed optical source and a method for implementing the multi-frequency optical comb are further disclosed.

Abstract translation: 一种用于测量光学异步采样信号的方法和系统。 用于测量光学异步采样信号的系统包括能够发射具有不同重复频率的两个光脉冲序列的脉冲光源，信号光路，参考光路和检测装置。 由于可以通过仅使用一个脉冲光源来测量光学异步采样信号，所以系统的复杂性和成本降低。 进一步公开了使用脉冲光源的多频光梳系统和实现多频光梳的方法。