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    Multi-beam optical system using lens array
    141.
    发明授权
    Multi-beam optical system using lens array 失效
    多光束光学系统使用透镜阵列

    公开(公告)号：US4428647A

    公开(公告)日：1984-01-31

    申请号：US439255

    申请日：1982-11-04

    Applicant: Robert A. Sprague ,  Donald R. Scifres

    Inventor： Robert A. Sprague ,  Donald R. Scifres

    IPC: G02B27/00 ,  G02B3/00 ,  G02B6/42 ,  G11B7/14 ,  H01S3/00 ,  H01S5/00 ,  H01S5/40 ,  G01J1/08 ,  G03H1/22

    CPC classification number: G02B3/005 ,  B41J2/451 ,  G02B6/4206 ,  G02B6/4249 ,  G02B6/425 ,  G11B7/14 ,  H01S5/4025 ,  G02B3/0087 ,  H01S3/005 ,  H01S5/005

    Abstract: Each laser of a semiconductor laser array of an optical system has its own lens mounted adjacent to it in the space between the laser array and the objective lens of the system. The purpose of the lenses is to change the angle of divergence of the light beams leaving the emitting surface of the laser array so that the light beams can be collected efficiently by the objective lens, thereby providing significant beam power at the light sensitive medium (optical disk, photoconductor, etc.) of the optical system. The focusing power of each lens is chosen to form virtual images behind the emitting surface with spacings approximately corresponding to the spacings of the light beams emitted by the laser array, but with the emitter image size substantially magnified.

    Abstract translation: 光学系统的半导体激光器阵列的每个激光器具有在激光器阵列和系统的物镜之间的空间中相邻安装的其自己的透镜。 透镜的目的是改变离开激光器阵列的发射表面的光束的发散角，使得可以通过物镜有效地收集光束，从而在光敏介质（光学器件）处提供显着的光束功率 光盘，光电导体等）。 选择每个透镜的聚焦能力以在发射表面后面形成虚拟图像，其间隔大致对应于由激光器阵列发射的光束的间隔，但是发射器图像尺寸基本上被放大。

    Standard light source utilizing spontaneous radiation
    142.
    发明授权
    Standard light source utilizing spontaneous radiation 失效
    采用自发辐射的标准光源

    公开(公告)号：US3889124A

    公开(公告)日：1975-06-10

    申请号：US37230673

    申请日：1973-06-21

    Applicant: MATSUSHITA ELECTRIC IND CO LTD

    Inventor： YAMAMOTO OSAMU ,  TAKENAGA MUTSUO ,  TSUJIMOTO YOSHINOBU

    IPC: G01J1/08 ,  C09K11/04 ,  C09K11/77 ,  C09K11/82 ,  G01T1/115 ,  G21H3/02

    CPC classification number: C09K11/04 ,  C09K11/7776

    Abstract: A standard light source utilizing spontaneous radiation made by mixing a fluorescent substance LnVO4:X (wherein Ln is Y or Gd, and X is Dy or Eu) with a radioactive substance containing a radioactive isotope which is less in the degree of temperature variation of the intensity of emitted light and excellent in stability. Particularly when used in a light-receiving device having photomultiplier tubes, the said light source emits light quite similar to that of a thermoluminescent substance such as CaSO4:X (wherein X is Im, Dy, Sm or Mn), LiF or Mg2SiO4:Tb, and is excellent as a calibration high-stability standard light source for use in the above-mentioned light-receiving device.

    Abstract translation: 使用通过将荧光物质LnVO4：X（其中Ln是Y或Gd，X是Dy或Eu）与放射性物质混合的标准光源与放射性物质混合，所述放射性物质的温度变化程度较小 发光强度高，稳定性好。 特别是当用于具有光电倍增管的光接收装置中时，所述光源发射与CaSO 4：X（其中X为Im，Dy，Sm或Mn），LiF或Mg 2 SiO 4：Tb等热致发光物质相似的光 并且作为用于上述光接收装置的校准高稳定性标准光源是优异的。

    Light shifting system for use in an optical instrument, such as a spectrophotometer
    143.
    发明授权
    Light shifting system for use in an optical instrument, such as a spectrophotometer 失效
    用于光学仪器的光转换系统，如分光光度计

    公开(公告)号：US3856415A

    公开(公告)日：1974-12-24

    申请号：US34580473

    申请日：1973-03-28

    Applicant: MICROMEDIC SYSTEMS INC

    Inventor： SANZ M ,  REVILLET G

    IPC: G01J3/08 ,  G01J1/02 ,  G01J1/08 ,  G02F1/34

    CPC classification number: G01J1/08

    Abstract: The present invention relates to optical instruments, such as photometers including spectrophotometers, and relates more particularly to a light-shifting device of light refracting type for receiving a beam of light used in such instruments and shifting it into one or the other of two parallel paths. An optical instrument having a light source, means comprising a diaphragm for directing a collimated beam of light from the light source in a path along an optical axis, light-refracting means disposed in the path for receiving the light beam and shifting the beam from its incident path thereto alternately to each of two offset parallel paths which are parallel to the incident path, and means for supporting, in the offset parallel paths, sample and comparison objects to be scanned by the shifted light beam in those paths.

    Abstract translation: 本发明涉及光学仪器，例如包括分光光度计的光度计，并且更具体地涉及一种用于接收在这种仪器中使用的光束并将其移动到两个平行路径中的一个或另一个的光折射型的光移动装置 。

    Calibration system for photodetecting instruments
    144.
    发明授权
    Calibration system for photodetecting instruments 失效
    用于光电检测仪器的校准系统

    公开(公告)号：US3645627A

    公开(公告)日：1972-02-29

    申请号：US3645627D

    申请日：1969-04-14

    Applicant: MELPAR INC

    Inventor： BRODY SAMUEL S ,  HOLLAND WILLIAM B

    IPC: G01J1/08 ,  G01N21/27 ,  G01N21/72 ,  G01J3/30 ,  G01J3/48

    CPC classification number: G01N21/72 ,  G01J1/08 ,  G01N21/274

    Abstract: A photometric emission detector is provided with an integral calibration source including a source of light and apparatus for controlling the passage of light and the quantity of light passed along the optical path via which induced radiant energy emissions are detected when the detector is in use.

    Abstract translation: 光度发射检测器设置有包括光源的整体校准源和用于控制光的通过的装置和沿着光路通过的光量，当检测器使用时通过该光路检测到感应的辐射能量发射。

    ADJUSTABLE SIGNAL SOURCE WITH LOW PHASE NOISE
    145.
    发明申请
    ADJUSTABLE SIGNAL SOURCE WITH LOW PHASE NOISE 有权

    公开(公告)号：US20250044151A1

    公开(公告)日：2025-02-06

    申请号：US18717518

    申请日：2022-12-09

    Applicant: UNIVERSITÄT PADERBORN

    Inventor： Meysam BAHMANIAN ,  Johannes Christoph SCHEYTT

    IPC: G01J1/44 ,  G01J1/08

    Abstract: The invention relates to an adjustable signal source with low phase noise, comprising: an optical-microwave phase detector (BOMPD) which comprises: an intensity modulator (BIM) having an optical signal input, a modulation input (1), a first output (O1), and a second output (O2), a first photodiode (PD1) which can be irradiated by light from the first output (O1) during operation, a second photodiode (PD2) which can be irradiated by light from the second output (O2) during operation, wherein the first photodiode (PD1) and the second photodiode (PD2) are connected in series in a biased manner during operation, wherein a tap for a tap signal is arranged between the first photodiode (PD1) and the second photodiode (PD2), further comprising a controllable DC power source (N4), wherein an offset current is can be set at the tap during operation by means of the first DC power source (N4), whereby the symmetry of the optical-microwave phase detector is canceled by an offset current during operation, wherein the tap is routed to a low-pass filter with any potential offset current, wherein the low-pass filtered tap signal is provided to an adjustable oscillator (OSZ).

    MEASUREMENT METHOD FOR CHARACTERIZATION OF A PHOTODETECTOR
    146.
    发明公开
    MEASUREMENT METHOD FOR CHARACTERIZATION OF A PHOTODETECTOR 审中-公开

    公开(公告)号：US20240247977A1

    公开(公告)日：2024-07-25

    申请号：US18564177

    申请日：2022-03-31

    Applicant: ams-OSRAM International GmbH

    Inventor： Gerd PLECHINGER

    IPC: G01J1/08 ,  G01J1/44

    CPC classification number: G01J1/08 ,  G01J1/44 ,  G01J2001/083 ,  G01J2001/446

    Abstract: A measurement method for characterization of a photodetector includes illumination of the photodetector with a variable electromagnetic radiation. The variable electromagnetic radiation has a temporally oscillating radiation intensity with fixed period and amplitude. The method also includes illumination of the photodetector with a first electromagnetic radiation having a temporally constant first radiation intensity and measurement of a first output signal at the photodetector. The method further includes illumination of the photodetector with a second electromagnetic radiation having a temporally constant second radiation intensity different from the first radiation intensity and measurement of a second output signal at the photodetector. The method additionally includes determination of a non-linearity of the photodetector by comparing the measurements of the first and second output signals.

    Sensor device for determining the position of seeds while sowing, sowing system and method for determining the position of seeds in a trench
    149.
    发明授权
    Sensor device for determining the position of seeds while sowing, sowing system and method for determining the position of seeds in a trench 有权

    公开(公告)号：US11129324B2

    公开(公告)日：2021-09-28

    申请号：US16044595

    申请日：2018-07-25

    Applicant: BAUMER ELECTRIC AG

    Inventor： Michael Weigel

    IPC: A01C7/10 ,  A01C21/00 ,  G01J1/08 ,  G01J1/58 ,  G01J1/42 ,  A01C1/00 ,  A01C7/12 ,  G01N33/52

    Abstract: A sensor device for determining a position of seeds while sowing. The sensor device includes a radiation assembly which generates an illumination radiation oriented towards a target area, and a detection assembly. The radiation assembly includes a radiation source which provides an emission spectrum of the illumination radiation covering a spectral range. The detection assembly includes a radiation detector which detects an incident radiation, and a filter member with an attenuation band and a pass band. The radiation detector includes a field of view. The pass band has an attenuation which is less than an attenuation of the attenuation band in a wavelength range where the wavelengths are longer than those of the attenuation band. The target area and the field of view intersect. The radiation source and the radiation detector form a triangulation arrangement so that a distance from the target area to the detection assembly can be determined.

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