Broad spectrum spectrometer apparatus
    121.
    发明授权
    Broad spectrum spectrometer apparatus 失效
    宽光谱仪器

    公开(公告)号:US5784158A

    公开(公告)日:1998-07-21

    申请号:US755486

    申请日:1996-11-22

    Abstract: This invention is for a broad spectrum apparatus that provides a substantially uniform spectral response from a spectrometer by introducing one or more elements whose combined response or correction factor is the inverse of that produced by the rest of the apparatus. The response of the elements can be formed either pre or post dispersion. In the case of pre-dispersion the correcting components may be optical components chosen from a full combination of optical filters, either purely transmissive or a combination of transmissive and reflective as in the case of dichroic mirrors, optical lenses with chromatic aberration, integrating spheres or other diffusers coated with material whose response is wavelength dependant. The post-dispersive application may involve a spatial filter or shaped aperture to partially block the more intense wavelengths. A particular attractive application may be a mask that is directly etched onto the surface of a CCD array detector. Post-dispersive applications may also include custom neutral density filters or variable neutral density filters.

    Abstract translation: 本发明涉及一种广谱设备,其通过引入一个或多个元件提供来自光谱仪的基本上均匀的光谱响应,其中组合的响应或校正因子与设备的其余部分产生的相反。 元件的响应可以在分散之前或之后形成。 在预分散的情况下,校正组件可以是从完全组合的滤光器中选择的光学组件,纯滤光器,纯透光或透射和反射组合,如在分色镜的情况下,具有色差的光学透镜,积分球或 其他涂覆有响应波长依赖的材料的扩散器。 后分散应用可以涉及空间滤波器或成形孔以部分地阻挡更强的波长。 特别有吸引力的应用可以是直接蚀刻到CCD阵列检测器的表面上的掩模。 后分散应用还可以包括定制的中性密度滤光片或可变中性密度滤光片。

    COLOR MEASUREMENT WITH STRUCTURED LIGHT
    123.
    发明公开

    公开(公告)号:US20240035891A1

    公开(公告)日:2024-02-01

    申请号:US18358105

    申请日:2023-07-25

    Abstract: A method for spatially resolved color determination, comprising the steps of projecting (S101) a first structured-light pattern having a first wavelength of light onto a dental object;
    detecting (S102) a first spatially resolved optical parameter set based on the reflected or remitted first structured-light pattern; projecting (S103) a second structured-light pattern having a second wavelength of light onto the dental object; detecting (S104) a second spatially resolved optical parameter set based on the reflected or remitted second structured-light pattern; and calculating (S105) a third spatially resolved optical parameter set at a third wavelength of light based on the first and second spatially resolved optical parameter sets.

    Solid State Broad Band Near-Infrared Light Source
    128.
    发明申请
    Solid State Broad Band Near-Infrared Light Source 审中-公开
    固态宽带近红外光源

    公开(公告)号:US20160091367A1

    公开(公告)日:2016-03-31

    申请号:US14860259

    申请日:2015-09-21

    CPC classification number: G01J3/108 G01J3/0216 G01J3/024

    Abstract: A light source for near-infrared transmission and reflection spectroscopy can be constructed from a combination of a high power blue or blue-green light emitting diode (LED) and a phosphor element based on an inorganic material. The phosphor element absorbs the LED light and, in response to the LED excitation, emits luminescence that continuously covers the 700-1050 nm range. One possible material that can be used for such a near-infrared emitting phosphor element is a single crystal rod of Ti+3 doped Sapphire. An alternative near-infrared emitting phosphor material is a disk or rectangular shaped composite of Ti+3 doped Sapphire powder embedded in a clear optical epoxy or silicone encapsulant. Such a combination of a blue LED for excitation of a phosphor element that emits in a broad wavelength band has been widely used in white LEDs where the emission is in the 400-700 nm range.

    Abstract translation: 用于近红外透射和反射光谱的光源可以由高功率蓝光或蓝绿色发光二极管(LED)和基于无机材料的荧光体元件的组合构成。 荧光体元件吸收LED光,并且响应于LED激发,发射连续覆盖700-1050nm范围的发光。 可用于这种近红外发射磷光体元件的一种可能的材料是Ti + 3掺杂的蓝宝石的单晶棒。 替代的近红外发射磷光体材料是嵌入在透明光学环氧树脂或硅树脂密封剂中的Ti + 3掺杂的蓝宝石粉末的圆盘或矩形复合材料。 用于激发在宽波长带中发射的荧光体元件的蓝色LED的这种组合已广泛用于发射在400-700nm范围内的白色LED中。

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