中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

173 records (took 0.011 seconds)

    Portable spectrophotometer
    91.
    发明公开
    Portable spectrophotometer 失效
    Tragbares Spektrophotometer。

    公开(公告)号：EP0569104A1

    公开(公告)日：1993-11-10

    申请号：EP93201318.8

    申请日：1993-05-07

    Applicant: X-RITE, INC.

    Inventor： Berg, Bernard J. ,  Boes, Thomas J. ,  Cargill, Mark A. ,  Rood, Patrick S.

    IPC: G01N21/47

    CPC classification number: G01J3/51 ,  G01J3/02 ,  G01J3/0232 ,  G01J3/0251 ,  G01J3/10 ,  G01J3/513 ,  G01N21/474 ,  G01N21/55 ,  G01N2021/556 ,  G01N2201/065

    Abstract: A portable spectrophotometer includes a small-diameter optical sphere (101) as well as optical detectors (130, 136) and signal processing and display circuitry (140, 142) which allows the instrument to be taken to an object to be measured and which provides a readout of color values at the portable instrument. The instrument is capable of providing specular-included and specular-excluded color readings simultaneously. The interior of the integrating sphere is coated with a highly reflective, color-absorbing material, and light from an incandescent lamp (103) is diffused within the sphere prior to reaching the object to be measured. The sphere is provided with a first aperture (120) which receives spectrally-included light and which is positioned to absorb a spectral component of the diffused source light. A second aperture (125) positioned at a corresponding angular position with respect to the object measures specular-excluded light, excluding the specular component absorbed by the first aperture. By appropriately combining the specular-included and specular-excluded light at one wavelength, a value for the specular component is derived.

    Abstract translation: 便携式分光光度计包括小直径光学球（101）以及光学检测器（130,136）以及信号处理和显示电路（140,142），其允许将仪器带到被测量物体，并提供 在便携式仪器上读出颜色值。 该仪器能够同时提供镜面包含和镜面排除的色彩读数。 积分球的内部涂覆有高反射性的彩色吸收材料，并且来自白炽灯（103）的光在到达待测量物体之前在球体内扩散。 球体设置有第一孔（120），其接收光谱包围的光并被定位成吸收漫射源光的光谱分量。 位于相对于物体的相应角度位置的第二孔径（125）测量除了由第一孔径吸收的镜面反射分量的镜面排除的光。 通过适当地组合在一个波长处的镜面反射光和镜面反射光，导出镜面反射分量的值。

    Spectroradiometer and spectrophotometer
    94.
    发明公开
    Spectroradiometer and spectrophotometer 失效
    Spektralradiometer和Spektralphotometer。

    公开(公告)号：EP0105178A2

    公开(公告)日：1984-04-11

    申请号：EP83108371.2

    申请日：1983-08-25

    Applicant: Li-Cor, Inc.

    Inventor： Middendorf, Lyle Richard ,  Wurm, John Henry ,  Biggs, William Walter

    IPC: G01J3/00 ,  G01J3/06 ,  G01J5/30 ,  G01N21/27

    CPC classification number: G01J3/28 ,  G01J3/0232 ,  G01J3/0256 ,  G01J3/0262 ,  G01J3/027 ,  G01J3/0283 ,  G01J3/0291 ,  G01J3/06 ,  G01J2003/1828 ,  G01N2201/125 ,  G01N2201/127

    Abstract: To provide sufficient sensitivity, spectral resolution and speed of measurement for field environmental measurements in a portable spectroradiometer, a silicon photodiode receives light: (1) having a bandwidth in the range of between 2 and 15 nm (nanometers) from a pivotable concave holographic diffraction grating within the wavelength range of between 250 and 1150 nm at a scanning rate in the range of 20 to 100 nm per second; (2) having stray light of high intensity and undesired frequencies and the shorter wavelength harmonics of the selected frequency range blocked by filters; and (3) having flux of a least 10 microwatts per square meter of diffuser plate for each nanometer of bandwidth. Automatic electrical zeroing is obtained by blocking all light once at the beginning of each scan, obtaining an electrical drift-related signal and using the drift signal to ad- just the measured signal during the scan. Several different sensing interfaces can be used, including a quartz, light fiber probe having at least a 50% packing density and a cone angle of at least 24 degrees. The data and the programming storage is at least 30K bytes but the instrument uses no more than two watts of power when the instrument is not scanning.

    Abstract translation: 为了在便携式分光光度计中提供足够的灵敏度，光谱分辨率和现场环境测量的测量速度，硅光电二极管接收光：（1）具有从可枢转的凹面全息衍射的2至15nm（纳米）范围内的带宽 在波长范围为250〜1150nm之间，扫描速度为20〜100nm /秒; （2）具有高强度和不期望频率的杂散光，并且所选频率范围的较短波长谐波被滤波器阻挡; 和（3）每纳米带宽具有至少10微瓦/平方米扩散板的通量。 通过在每次扫描开始时阻止所有光一次获得自动电调零，获得电漂移相关信号，并使用漂移信号在扫描期间调整测量信号。 可以使用几种不同的感测接口，包括具有至少50％填充密度和至少24度的锥角的石英光纤探针。 数据和编程存储器至少为30K字节，但当仪器未扫描时，仪器的功率不得超过2瓦。

    TRANSIENT GRATING TIME RESOLVED LUMINESCENCE MEASUREMENTS
    97.
    发明公开
    TRANSIENT GRATING TIME RESOLVED LUMINESCENCE MEASUREMENTS 审中-公开
    TG-ZEITAUFGELÖSTELUMINESZENZMESSUNGEN

    公开(公告)号：EP3105539A4

    公开(公告)日：2017-10-04

    申请号：EP15745852

    申请日：2015-02-05

    Applicant: VICTORIA LINK LTD

    Inventor： HODGKISS JUSTIN M ,  CHEN KAI

    IPC: G01B9/02 ,  G01B11/00 ,  G01J3/18 ,  G01J3/28 ,  G01J3/44

    CPC classification number: G01J1/4228 ,  G01J3/0232 ,  G01J3/2889 ,  G01J3/4406 ,  G01J2003/4424 ,  G01N21/636 ,  G01N21/6408 ,  G01N21/65 ,  G01N2201/061 ,  G01N2201/0696

    Abstract: A transient grating (TG) is used as an optical gating element with sub-picosecond time resolution for luminescence measurements from a photo-detector array. The transient grating is formed in a gate medium by one or more pulsed gate beams. For photoluminescence measurements such as photoluminescence spectroscopy or imaging, a source is excited by a pulsed excitation beam, and the pulsed gate beams are synchronized to the pulsed excitation beam with an adjustable delay between the excitation of the source and the formation of the TG. Moreover, a source or its spectra can be imaged at two different regions of the photo-detector array at two different times spaced in time by a selected duration of time with sub-picosecond resolution over a range of a nanosecond or more. A beam from the source is deflected to the different regions by changing the frequency or geometry of the pulsed gate beams.

    Abstract translation: 瞬态光栅（TG）被用作具有亚皮秒时间分辨率的光学门控元件，用于来自光电检测器阵列的发光测量。 瞬态光栅由一个或多个脉冲栅极光束在栅极介质中形成。 对于光致发光测量，例如光致发光光谱或成像，源由脉冲激发光束激发，并且脉冲激光束与源激发和TG形成之间的可调节延迟同步到脉冲激发光束。 此外，源或其光谱可以在两个不同时间在光检测器阵列的两个不同区域成像，所述两个不同时间以纳秒或更大范围内的亚皮秒分辨率选定的持续时间。 通过改变脉冲栅极光束的频率或几何形状，来自光源的光束偏转到不同的区域。

Patent Agency Ranking