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公开(公告)号：US20050007587A1
公开(公告)日：2005-01-13
申请号：US10878754
申请日：2004-06-28
Applicant: Katsumi Harada
Inventor： Katsumi Harada
CPC classification number: G01J3/18 , G01J2003/1814
Abstract: Detected and stored are zero-order light positions which are an angular position of the pre-spectroscope and that of the main spectroscope at which a main light ray incident on the inlet slit reaches the outlet slit via the pre-spectroscope and the main spectroscope. In a state where the main spectroscope is located at its zero-order light position, the pre-spectroscope is rotated to detect the angular position of the pre-spectroscope for a predetermined wavelength. Further, in a state where the pre-spectroscope is located at its zero-order light position, the main spectroscope is rotated to detect the angular position of the main spectroscope for the predetermined wavelength.
Abstract translation: 检测和存储是零级光位置，它们是前分光镜的角度位置和主入射狭缝入射的主光线通过前分光镜和主分光镜到达出口狭缝的主分光器的角度位置。 在主分光器位于其零级光位置的状态下，旋转预分光镜以检测预分光镜的预定波长的角位置。 此外，在前分光镜位于其零级光位置的状态下，旋转主分光镜以检测主分光器的预定波长的角位置。
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公开(公告)号：US06078394A
公开(公告)日：2000-06-20
申请号：US12887
申请日：1998-01-23
Applicant: Nigel R Wood
Inventor： Nigel R Wood
CPC classification number: G01J9/04 , G01J9/02 , H04B10/506 , H04B10/572 , G01J2009/0257
Abstract: Scanning based wavelength measurement systems which are suitable for both localised and distributed WDM, High Density WDM, and coherent systems are based around the use of a fixed cavity Fabry-Perot Etalon which when the output of a tuneable laser is passed through it produces a number of reference equispaced transmission maxima. These maxima are used in a Scanning Heterodyne or Scanning Filter based Spectrometer for detection of the wavelength position of the transmitter.
Abstract translation: 适用于局部和分布式WDM，高密度WDM和相干系统的基于扫描的波长测量系统基于使用固定腔法布里 - 珀罗Etalon，当可调谐激光器的输出通过它时，产生数字 的参考等距传输最大值。 这些最大值用于基于扫描异步或扫描滤波器的光谱仪，用于检测发射机的波长位置。
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公开(公告)号：US5949541A
公开(公告)日：1999-09-07
申请号：US28729
申请日：1998-02-24
Applicant: Cormic K. Merle
Inventor： Cormic K. Merle
CPC classification number: G01J3/06 , G01J3/18 , G01J3/0205
Abstract: In order to reduce the size of a spectrophotometer having a rotatable diffraction grating and to compensate for longitudinal chromatic aberration and to provide for triangular bandwidth (where the image of the entrance aperture through which the light to be analyzed enters the spectrophotometer is equal in width to the width of exit slit through which the spectral components of each band are passed to a photodetector) thereby enabling high, accurate resolution of spectral line locations and edges of colors to be obtained, the diffraction grating is pivoted about an axis laterally displaced from the grating in the tangential plane, which plane contains substantially all of the light paths in the spectrophotometer. The exit aperture rotates with the grating and has a displacement from the grating in a direction transverse to the direction of displacement of the pivot, which displacement may be in the sagittal plane of the spectrophotometer. The displacement of the exit aperture may be in the direction of the lines of the grating and the width of the exit aperture intercepts light from the entrance slit which is directed from the grating to a mirror having power such that the power of the grating and mirror is less than one. Then the image of the entrance aperture at the exit aperture is minimally displaced in the tangential plane thereby compensating for longitudinal chromatic aberration and the projection of the entrance aperture on the exit aperture stays approximately constant over each of the spectral bands, thereby providing the spectrophotometer with a triangular bandwidth characteristic. The triangular bandwidth characteristic may be maintained without sacrificing illumination intensity by utilizing a refractive element such as a prism which is rotatable with the exit aperture and the grating. The element is in the light path to the exit aperture.
Abstract translation: 为了减小具有可旋转衍射光栅的分光光度计的尺寸并补偿纵向色差并提供三角带宽（其中待分析的光进入分光光度计的入射孔的图像的宽度与 出射狭缝的宽度，每个带的光谱分量通过该宽度传递到光电检测器），从而能够获得要获得的色谱线位置和边缘的高精确分辨率，衍射光栅围绕横向从光栅移位的轴线枢转 在切平面中，哪个平面在分光光度计中基本上包含所有光路。 出口孔与光栅一起旋转，并且在横向于枢轴的位移方向的方向上具有从光栅的位移，该位移可以在分光光度计的矢状面中。 出口孔的位移可以在光栅的线的方向上，并且出射孔的宽度拦截来自光栅的入口狭缝的光，其中光束具有功率，使得光栅和反射镜的功率 不到一个 然后，出口孔处的入口孔径的图像在切向平面中被最小化位移，从而补偿纵向色差，并且出口孔上的入口孔的投影在每个光谱带上保持大致恒定，从而为分光光度计提供 三角带宽特性。 可以通过利用诸如可以与出射孔和光栅一起旋转的棱镜的折射元件来保持三角形带宽特性而不牺牲照明强度。 元件处于出口孔的光路中。
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公开(公告)号：US5898495A
公开(公告)日：1999-04-27
申请号：US959030
申请日：1997-10-28
Applicant: Christopher J. Manning
Inventor： Christopher J. Manning
CPC classification number: G01J3/2889 , G01J3/02 , G01J3/0202 , G01J3/06 , G01J3/45 , G01J3/453 , G01J9/0215
Abstract: A novel variation of Michelson's interferometer uses tilt- and shear-compensation optics to allow various mirror motions to produce variation of path difference. The tilt-compensation mechanism consists of two complementary reflections from a single plane mirror to produce a beam having a constant angle of propagation, typically the same as the input beam. Using a retroreflector to invert the image of the single plane mirror before the second reflection produces the complementary reflections. A particularly efficient embodiment of the present invention uses a balanced disk-shaped mirror to effect very rapid variation of path difference by nutation or precession. Other advantages of tilt-compensation include photometric stability. This interferometer has applications in spectrometry, spectral imaging and metrology.
Abstract translation: 迈克尔逊干涉仪的一个新颖变化使用倾斜和剪切补偿光学元件，以允许各种镜像运动产生路径差异的变化。 倾斜补偿机构由来自单个平面镜的两个互补反射组成，以产生具有恒定传播角的光束，通常与输入光束相同。 在第二次反射之前使用回射器反转单个平面镜的图像产生补偿反射。 本发明的特别有效的实施例使用平衡的盘形镜来通过章动或进动来实现路径差异的非常快速的变化。 倾斜补偿的其他优点包括光度稳定性。 该干涉仪具有光谱，光谱成像和计量学应用。
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公开(公告)号：US5828061A
公开(公告)日：1998-10-27
申请号：US718594
申请日：1996-09-26
Applicant: Tatsuki Kakimoto
Inventor： Tatsuki Kakimoto
Abstract: In order to improve the accuracy of the absolute value of a wavelength of diffraction light in a diffraction grating, a gas absorption line resulting from an absorption cell 8 is used as a wavelength reference 8. When reference light is exited from a light source 7 in a wavelength reference light source 1, the reference light is transmitted to a diffraction grating 2 as transmitted light having a spectrum absorbing only light of a predetermined wavelength by the absorption cell 8 to allow it to be reciprocated in a predetermined angle range. The diffraction grating 2 produces a split light beam from the transmitted light from the absorption cell 8. The diffraction grating 2 splits the transmitted light from the absorption cell 8 to provide diffracted light and the diffracted light from the diffraction grating 2 is received by the reference light receiving unit 3. It is possible to, without being affected by a variation in the environmental condition, accurately know the rotation angle of the diffracting grating 2 from the diffracted light of the absorption line-existing waveform component received by the reference light receiving unit 3, that is, the rotation angle of the diffraction grating 2 at a wavelength at that time.
Abstract translation: PCT No.PCT / JP95 / 02547 Sec。 371日期1996年9月26日 102（e）1996年9月26日PCT 1995年12月13日PCT PCT。 出版物WO96 / 26414 日期1996年8月29日为了提高衍射光栅中的衍射光的波长的绝对值的精度，使用由吸收单元8产生的气体吸收线作为波长参考8.当参考光从 在波长参考光源1中的光源7，参考光作为透射光透射到衍射光栅2，该透射光通过吸收单元8吸收仅具有预定波长的光的光谱，以允许其以预定角度往复运动 范围。 衍射光栅2从来自吸收单元8的透射光产生分裂光束。衍射光栅2将来自吸收单元8的透射光分离以提供衍射光，衍射光栅2的衍射光被参考 光接收单元3.可以在不受环境条件的变化的影响的情况下，由参考光接收单元接收的吸收线存在的波形分量的衍射光精确地知道衍射光栅2的旋转角度 3，即衍射光栅2在此时的波长处的旋转角度。
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Patent Agency Ranking496.发明授权Spectrometric device and method for recognizing atomic and molecular signatures 失效用于识别原子和分子特征的光谱测量装置和方法
公开(公告)号：US5801826A
公开(公告)日：1998-09-01
申请号：US802169
申请日：1997-02-18
Applicant: Richard Ernest Williams
Inventor： Richard Ernest Williams
Abstract: Complex atomic or molecular spectral signatures embedded in interfering background spectra are very rapidly recognized by a spectrometric device that employs precise sweep rate control with signal slope extraction. Very fast optics become feasible. High signal to noise ratios are attained in each of three operational modes. The first, PURGE, is frequently invoked and stores an ambient background pattern in differentiated form. The second, TARGET, stores a signature derived from a target substance placed within the invention's sensing range. The signature retains only signal derivatives that significantly depart from those encountered during PURGE. A SEEK mode employs a similar derivative extraction algorithm, and searches for matches to TARGET signatures stored in a memory bank. During SEEK, pattern correlations to stored targets are sensed, and results displayed.
Abstract translation: 嵌入干涉背景光谱中的复杂原子或分子光谱特征通过使用信号斜率提取的精确扫描速率控制的光谱仪器非常快速地识别。 非常快的光学变得可行。 在三种操作模式中的每一种都能实现高信噪比。 经常调用第一个PURGE，并以不同的形式存储环境背景图案。 第二个“目标”（TARGET）存储从放置在本发明的感测范围内的目标物质衍生的签名。 签名只保留与PURGE中遇到的信号衍生物有明显差异的信号衍生物。 SEEK模式采用类似的派生提取算法，并搜索与存储在存储体中的TARGET签名的匹配。 在SEEK期间，感测与存储的目标的模式相关性，并显示结果。
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公开(公告)号：US5784159A
公开(公告)日：1998-07-21
申请号：US768991
申请日：1996-12-18
Applicant: Takashi Iwasaki
Inventor： Takashi Iwasaki
CPC classification number: G01J3/2889 , G01J3/06
Abstract: An optical spectrum measuring apparatus is disclosed that is able to take measurements at high speed. An encoder is connected to the rotational axis of a motor. A counter counts the number of pulses outputted from the encoder 14. A comparator, that is connected to the counter and a register, compares a value stored in the counter with a value stored in the register set by a control section, and outputs an AD conversion signal when the values are equal. The control section sets the register with a value corresponding to a first measurement point and rotates a diffraction grating at a constant speed from an angle corresponding to a measurement initiation wavelength to an angle corresponding to a measurement termination wavelength. An AD conversion signal is outputted from the comparator when a measurement point is reached, then the control section sets the register to a value corresponding to the next measurement point.
Abstract translation: 公开了能够高速进行测量的光谱测量装置。 编码器连接到电动机的旋转轴线。 计数器对从编码器14输出的脉冲数进行计数。连接到计数器和寄存器的比较器将存储在计数器中的值与由控制部分设置的寄存器中存储的值进行比较，并输出AD 转换信号值相等时。 控制部分将寄存器设置为与第一测量点相对应的值，并将与测量起始波长相对应的角度的恒定速度的衍射光栅旋转到与测量终止波长相对应的角度。 当达到测量点时，从比较器输出AD转换信号，然后控制部分将寄存器设置为与下一个测量点对应的值。
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公开(公告)号：US5710627A
公开(公告)日：1998-01-20
申请号：US457267
申请日：1995-06-01
Applicant: Masaru Inoue , Juichiro Ukon
Inventor： Masaru Inoue , Juichiro Ukon
CPC classification number: G01J3/06
Abstract: A wavelength-scanning mechanism for a spectrometer utilizes an eccentric disc cam driven by a pulse motor to pivot a diffraction grating with a contact bar fixed thereto. A light source supplies light to the mechanism with a first concave spherical mirror reflecting light to the diffraction grating and reflecting light reflected by the diffraction grating to a zero-order light detector. A second concave spherical mirror reflects light diffracted by the diffraction grating to a diffracted light detector. A controller receives information from the light detectors and controls the pulse motor. At least one cam follower is mounted on the cam at a position eccentric from the rotational axis thereof and slidably contacts the contact bar. Alternatively, the diffraction grating has two contact bars fixed thereto, and the cam follower is pivoted between the contact bars. A method of utilizing the mechanism first determines a center value of zero-order light reflected by the diffraction grating by pivoting the diffraction grating in steps between the time zero-order light is detected until it is no longer detected. The number of steps is divided by two, which yields the center value. Diffracted light is detected at the center value, and the spectral intensity of the detected diffracted light is calculated.
Abstract translation: 用于光谱仪的波长扫描机构利用由脉冲电机驱动的偏心圆盘凸轮来枢转衍射光栅，固定有接触杆。 光源向机构供给具有向衍射光栅反射光并将由衍射光栅反射的光反射到零级光检测器的第一凹球面镜。 第二凹球面镜将由衍射光栅衍射的光反射到衍射光检测器。 控制器从光检测器接收信息并控制脉冲电机。 至少一个凸轮从动件安装在凸轮上偏心于其旋转轴线的位置并且可滑动地接触接触杆。 或者，衍射光栅具有固定到其上的两个接触杆，并且凸轮从动件在接触杆之间枢转。 利用该机构的方法首先通过在检测到时间零级光之间的步骤中摆动衍射光栅来确定由衍射光栅反射的零级光的中心值，直到其不再被检测到。 步数除以2，产生中心值。 在中心值处检测衍射光，并且计算检测到的衍射光的光谱强度。
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公开(公告)号：US5684582A
公开(公告)日：1997-11-04
申请号：US471617
申请日：1995-05-22
Applicant: Jay M. Eastman , James M. Zavislan
Inventor： Jay M. Eastman , James M. Zavislan
CPC classification number: G01J3/50 , G01J3/02 , G01J3/0202 , G01J3/0256 , G01J3/0272 , G01J3/0283 , G01J3/0291 , G01J3/06 , G01J3/18 , G01J3/28 , G01J3/502 , G01J3/524 , G01J2003/2866
Abstract: A robust spectrophotometer (also known as a color spectrometer or colorimeter) is self contained in a housing which is adapted to be held-held and has all of the electrical, optical and electro optic elements mounted on a board captured within the housing at one end of which light from a sample is restricted to an object area and projected after being dispersed spectrally, as with a reflection grating, to an image area at a photodetector via a lens which has an optical axis and converges the dispersed light at the image area. The dispersive element is mounted on an arm having a pivot laterally offset from the dispersive element's surface where a diverging beam of light from the object area is incident and is deflected to the image area. The geometry is such that the dispersive element may be rotated to a position where the beam is specularly deflected (zeroth order diffraction), and the spectrometer calibrated when the dispersive element is in the specular reflection/deflection position. The path from the object area is approximately perpendicular to the optical axis, and then is folded by mirrors to direct the beam to incidence on the dispersive element, from which the beam is deflected and focused by the lens, the focal length of which is such that the image and object areas are in conjugate relationship. Radiant or electroluminescent sources, for example, the screen of a CRT monitor, can directly illuminate the object area. A pivotal foot on the housing having an aperture may be used to facilitate alignment of the sample with the entrance opening to the housing of the spectrophotometer.
Abstract translation: 坚固的分光光度计（也称为彩色光谱仪或色度计）被容纳在壳体中，该壳体适于被保持并且具有安装在在一端的壳体内捕获的板上的所有电学，光学和电学光学元件 其中来自样品的光被限制在物体区域，并且如通过反射光栅一样在与光学检测器之间的光学检测器上的像面分散之后被投影，通过具有光轴的透镜并将分散的光会聚在图像区域。 分散元件安装在具有横向偏离分散元件表面的枢轴的臂上，其中来自物体区域的发散光束入射并偏转到图像区域。 几何形状使得色散元件可以旋转到光束被镜面偏转的位置（零级衍射），并且当色散元件处于镜面反射/偏转位置时校准光谱仪。 来自物体区域的路径大致垂直于光轴，然后被反射镜折叠以引导光束入射到色散元件上，光束被透镜偏转和聚焦，其焦距等于 图像和对象区域处于共轭关系。 辐射或电致发光源，例如CRT监视器的屏幕，可以直接照亮对象区域。 可以使用具有孔的壳体上的枢转脚来促进样品与分光光度计的壳体的入口的对准。
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公开(公告)号：US5631735A
公开(公告)日：1997-05-20
申请号：US648616
申请日：1996-05-16
Applicant: Yoshiroh Nagai
Inventor： Yoshiroh Nagai
CPC classification number: G01J3/02 , G01J3/0229 , G01J3/0232 , G01J3/0237 , G01J3/06 , G01J3/2846 , G01J2003/1273
Abstract: A multi-slit type spectrometer includes a light diffracter which diffracts an incident light according to wavelengths; an optical shutter array member including a plurality of optical shutter elements arranged in correspondence with wavelength bands diffracted by the light diffracter, operable to transmit an incident ray according to an applied voltage, and made of PLZT. A zone of a given number of adjacent optical shutter elements is applied with a voltage corresponding to the wavelength bands of the rays incident upon the zone of adjacent optical shutter elements at a specified timing so that the rays respectively pass through or are reflected at the optical shutter elements. A signal processor receives the ray which has passed through or has been reflected at each optical shutter element and outputs an electrical signal according to the intensity of the received ray. A calculator calculates the intensity of the incident ray for each wavelength band in accordance with the electrical signal output from the signal processor and the specified applying timing.
Abstract translation: 多狭缝型光谱仪包括根据波长衍射入射光的光致畸变器; 光学快门阵列部件，其包括与由光致变色器衍射的波长带对应地布置的多个光学快门元件，可操作以根据施加的电压传输入射光线，并由PLZT制成。 给定数量的相邻光学快门元件的区域以指定的时刻施加与入射在相邻光学快门元件的区域上的光线的波段相对应的电压，使得光线分别通过或者被反射在光学 快门元素 信号处理器接收已经通过或已经在每个光学快门元件反射的光线，并根据所接收的光线的强度输出电信号。 计算器根据从信号处理器输出的电信号和指定的施加定时计算每个波段的入射光线的强度。
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