公开(公告)号：US20040090624A1

公开(公告)日：2004-05-13

申请号：US10703665

申请日：2003-11-10

Applicant: SHIMADZU CORPORATION

Inventor： Kazumi Yokota ,  Tomoki Sasayama

IPC: G01J003/28

CPC classification number: G01J3/06 ,  G01J3/28

Abstract: In a spectrophotometer, the following formula is stored in advance as a correction formula of a rotation angle in a correction formula storing portion; nullnullnullnullnullAnullsin (C1nullnullnullnulla)nullBnullsin (C2nullnullnullnullb)nullnullc, wherein C1, C2 represent coefficients theoretically determined in advance by a structure of a reduction mechanism, and A, B, nulla, nullb, nullc are coefficients specific to the reduction device which are calculated based on measurement results of a plurality of bright line spectrums through fittings by a coefficient determining portion. In case a sample is measured actually, when a desired wavelength is set, a rotation angle correcting portion corrects a rotation angle null corresponding to the desired wavelength to calculate nullnull by applying the above-stated correction formula, and then, controls a motor so that a diffraction grid is rotated by the angle nullnull.

Abstract translation: 在分光光度计中，预先存储以下公式作为校正公式存储部中的旋转角度的校正公式; θ'= theta + A.sin（C1.theta + thetaa）+ B.sin（C2.theta + thetab）+ thetac，其中C1，C2表示理论上由减少机构的结构确定的系数，A， B，θa，thetab，thetac是通过系数确定部分通过配件的多个亮线谱的测量结果计算的减小装置特有的系数。 在实际测量样品的情况下，当设置期望波长时，旋转角度校正部分通过应用上述校正公式校正对应于期望波长的旋转角度θ来计算θ'，然后控制马达 衍射栅格旋转角度θ'。

公开(公告)号：US06587196B1

公开(公告)日：2003-07-01

申请号：US09491350

申请日：2000-01-26

Applicant: Tim Stippick ,  George Acosta ,  Ken Meissner

Inventor： Tim Stippick ,  George Acosta ,  Ken Meissner

IPC: G01J306

CPC classification number: G01J3/06

Abstract: The invention provides a mechanism for oscillating the spectral grating of a monochromator. The mechanism couples the spectral grating of the monochromator to an oscillating spatial linkage mechanism which accepts a rotational input and converts it into an oscillatory motion. A monochromator according to the invention comprises an oscillating grating that is oscillated by such spacial linkage mechanism drive.

Abstract translation: 本发明提供一种用于振荡单色仪的光谱光栅的机构。 该机构将单色仪的光谱光栅耦合到接受旋转输入并将其转换为振荡运动的振荡空间连杆机构。 根据本发明的单色仪包括通过这种空间连杆机构驱动振荡的振荡光栅。

公开(公告)号：US20030062484A1

公开(公告)日：2003-04-03

申请号：US10219807

申请日：2002-08-15

Applicant: Olympus Optical Co., Ltd.

Inventor： Tatsuo Nakata ,  Yoshihiro Shimada ,  Yasuaki Natori

IPC: G01J003/14 ,  G01N021/64

CPC classification number: G01J3/14 ,  G01J3/06

Abstract: A mirror driving mechanism comprises a driver configured to drive at least one mirror which reflects a light flux while adjusting a wavelength width and a wavelength band of the light flux separated in a spectrum, and a controller configured to control the driver.

Abstract translation: 镜驱动机构包括：驱动器，被配置为驱动反射光束的至少一个反射镜，同时调整在光谱中分离的光通量的波长宽度和波长带;以及控制器，其被配置为控制驾驶员。

公开(公告)号：US06528791B1

公开(公告)日：2003-03-04

申请号：US09688054

申请日：2000-10-13

Applicant: Kevin G. Williams ,  Joseph John Kurtz

Inventor： Kevin G. Williams ,  Joseph John Kurtz

IPC: G01J306

CPC classification number: G01J3/18 ,  G01J3/06 ,  G01J3/42 ,  G01J2003/1204 ,  G01N21/3504

Abstract: Very generally, the gas analyzer of the invention includes a source of infrared energy, a sample cell for containing an analyte gas mixture positioned in the path of infrared energy, and a monochrometer including a movable diffraction grating for producing a beam of infrared energy wherein the constituent wavelengths are spetrally separated. The device also includes a wide band interference filter for transmitting a predetermined wavelength band spanning the characteristic absorption wavelength of each of a plurality of constituent gases in the analyte gas mixture. A detector positioned to receive radiation passing through the filter produces an electrical response related to the infrared energy impinging thereon. The monochrometer includes provision for moving the diffraction grating to sequentially cause infrared energy of different wavelengths to impinge upon the detector, and for intermittently causing infrared energy directed toward the detector from the source to be blocked by the interference filter.

Abstract translation: 通常，本发明的气体分析器包括红外能量源，用于容纳位于红外能量路径中的分析物气体混合物的样品池，以及包括用于产生红外能量束的可移动衍射光栅的单色仪，其中， 组分波长被分离。 该装置还包括宽带干涉滤光器，用于传送横跨分析物气体混合物中的多个构成气体中的每一个的特征吸收波长的预定波长带。 定位成接收通过过滤器的辐射的检测器产生与其上的红外能量相关的电响应。 单色仪包括用于移动衍射光栅以顺序地使不同波长的红外能量撞击到检测器上，并且间歇地引起来自源的朝向检测器的红外能量被干涉滤光器阻挡。

公开(公告)号：US06512582B1

公开(公告)日：2003-01-28

申请号：US09526346

申请日：2000-03-16

Applicant: Tohru Mori ,  Seiji Funakawa

Inventor： Tohru Mori ,  Seiji Funakawa

IPC: G01J306

CPC classification number: G01J3/06

Abstract: In order to start sweeping an optical spectrum analyzer 1 and a wavelength tunable light source 14 on the same timing, a motor 6 for driving a spectroscope 4 in the optical spectrum analyzer 1 is controlled. To this end, a drive circuit 7 outputs a control signal to determine the timing where the motor 6 starts to rotate. A wavelength control circuit 19 in the wavelength tunable light source 14 controls the sweep of the wavelength of single-mode oscillation from a light source unit 20 and starts sweeping the light source unit 20 in response to a signal externally supplied to control the timing of sweep start. As a result, the sweep of the wavelength being measured with the optical spectrum analyzer 1 and that of the wavelength of single-mode oscillation from the wavelength tunable light source 14 are started on the same timing and high-speed sweep is achieved.

Abstract translation: 为了在同一时刻开始扫描光谱分析仪1和波长可调谐光源1​​4，控制用于驱动光谱分析仪1中的分光镜4的电动机6。 为此，驱动电路7输出控制信号以确定电动机6开始旋转的定时。 波长可调光源14中的波长控制电路19控制来自光源单元20的单模振荡的波长的扫描，并响应于外部提供的信号开始扫描光源单元20，以控制扫描的定时 开始。 结果，在相同的定时开始用光谱分析仪1测量的波长的扫描和来自波长可调光源14的单模振荡的波长的扫描，并且实现高速扫描。

公开(公告)号：US06495818B1

公开(公告)日：2002-12-17

申请号：US09664536

申请日：2000-09-18

Applicant: Chengye Mao

Inventor： Chengye Mao

IPC: H01J314

CPC classification number: G01C11/025 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/0208 ,  G01J3/0218 ,  G01J3/06 ,  G01J3/14 ,  G01J3/18 ,  G01J3/26 ,  G01J3/2823 ,  G01J2003/064

Abstract: A microscopic hyperspectral imaging scanner has a microscopic front objective lens, a spatial window for selectively passing a portion of the image therethrough, and a CCD array for receiving the passed portion of the image. The spatial window and CCD array are mounted for tandem reciprocating movement relative to the front object lens. In one embodiment, the spatial window is a slit and the CCD array is one-dimensional, and successive rows of the image in the focal plane of the front objective lens are passed to the CCD array by an image relay lens interposed between the slit and the CCD array. In another embodiment, the spatial window is a slit, the CCD array is two-dimensional, and a prism-grating-prism optical spectrometer is interposed between the slit and the CCD array so as to cause the scanned row to be split into a plurality of spectral separations onto the CCD array. In another embodiment, the CCD array is two-dimensional and the spatial window is a rectangular linear variable filter (“LVF”) window, so as to cause the scanned rows impinging on the LVF to be bandpass filtered into spectral components onto the CCD array through an image relay lens interposed between the LVF and the CCD array.

Abstract translation: 微观高光谱成像扫描器具有微观的前物镜，用于选择性地通过图像的一部分的空间窗口，以及用于接收图像的通过部分的CCD阵列。 安装空间窗口和CCD阵列以相对于前物镜进行串联往复运动。 在一个实施例中，空间窗口是狭缝，CCD阵列是一维的，并且前物镜的焦平面中的图像的连续行通过插入在狭缝和狭缝之间的图像中继透镜传递到CCD阵列 CCD阵列。 在另一个实施例中，空间窗口是狭缝，CCD阵列是二维的，并且棱镜光栅棱镜光谱仪被插入在狭缝和CCD阵列之间，以便将扫描的行分成多个 的光谱分离到CCD阵列上。 在另一个实施例中，CCD阵列是二维的并且空间窗口是矩形线性可变滤波器（“LVF”）窗口，以便使被照射在LVF上的扫描行带通滤波成CCD阵列上的频谱分量 通过介于LVF和CCD阵列之间的图像中继透镜。

公开(公告)号：US20020044280A1

公开(公告)日：2002-04-18

申请号：US09972037

申请日：2001-10-09

Inventor： Adam Mark Weigold ,  Peter Graham Foster

IPC: G01J003/12 ,  G01J003/28

CPC classification number: G01J3/1804 ,  G01J3/06 ,  G01J2003/2866

Abstract: The invention provides a method and apparatus for determining the wavelength of a sample source of light, the apparatus having a reference light source of known wavelength, a collimator for collimating light from the sample source and from the reference source, a dispersing means for receiving and spatially dispersing collimated light from the collimator according to wavelength, focusing means for focusing dispersed light from the dispersing means, and a photodetector located in the focal plane of the focusing means and having an aperture for spatially selectively admitting light from the focusing means, and operable to provide a temporally calibratable output signal indicative of the wavelength of the selectively admitted light, wherein the apparatus is operable to scan the focused spatially dispersed beam across the aperture, and the photodetector output includes resolvable features corresponding to light from the reference source and sample source, whereby a time difference between the features is indicative of a wavelength difference between the light from the reference source and the sample source.

Abstract translation: 本发明提供了一种用于确定样品光源的波长的方法和装置，该装置具有已知波长的参考光源，用于准直来自样品源和参考源的光的准直器，用于接收和 根据波长对来自准直器的准直光进行空间分散，用于聚焦来自分散装置的分散光的聚焦装置，以及位于聚焦装置的焦平面中的光电检测器，并具有用于空间选择性地允许来自聚焦装置的光的孔， 以提供指示所选择的入射光的波长的可临时校准的输出信号，其中该装置可操作以扫过聚焦的空间分散的光束穿过孔，并且光电检测器输出包括对应于来自参考源和样品源的光的可分辨特征 ，由此之间的时间差 这些特征表示来自参考源的光和样品源之间的波长差。

公开(公告)号：US20010046047A1

公开(公告)日：2001-11-29

申请号：US09728247

申请日：2000-11-30

Inventor： Damond V. Ryer

IPC: G01J003/18 ,  G01J003/28

CPC classification number: G01J3/28 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0291 ,  G01J3/06 ,  G01J3/12 ,  G01J3/18 ,  G01J2003/1828

Abstract: A spectrometer, or a spectral instrument using multiple non-interfering optical beam paths and special optical elements. The special optical elements for use with the instrument are used for directing the optical beam and/or altering the form of the beam. The instrument has the potential, depending upon the totality of the optical components incorporated into the instrument, to be a monochromator, a spectroradiometer, a spectrophotometer and a spectral source. The spectral instrument may further be a part of the spectral system. The system may include the spectral instrument, a power module and means for remote control of the instrument. Such remote control may be by use of a personal computer or a control system dedicated to the control, measurement and analysis of the collected information. The multiple non-interfering beam paths are created using specially designed optical elements such as a diffraction grating, a splitter box, a zero back-lash drive system for movement of the grating element. The orientation of and a physical/spatial relationship between the field lenses, slits, return mirror, reflecting prism, turning lenses all define the multiple, preferably two paths. Particularly, there is a double pass through the grating to increase dispersion, reduce scatter while maintaining a perfect temperature independent spectral match for the second pass. Using the same grating twice reduces scatter by about a factor of 1000, increases the dispersion by a factor of two, and eliminates any temperature-related mechanical spectral drift which often is present with two separate monochromators. Because of the specially designed grating structure, the grating can cause the concurrent diffraction of a plurality of incident optical beams, each of which beams have different angles of incidence and different angles of reflection. The path of the incident and the reflected beam to and from the grating is nulloff-axisnull. That is, the beams going to and from the grating do not use the optical axis of the grating structure.

公开(公告)号：US06304324B1

公开(公告)日：2001-10-16

申请号：US09316064

申请日：1999-05-21

Applicant: Takashi Iwasaki

Inventor： Takashi Iwasaki

IPC: G01J342

CPC classification number: G01J3/02 ,  G01J3/027 ,  G01J3/06 ,  G01J3/18 ,  G01J3/28 ,  G01J3/32

Abstract: A method of calculating optical frequency spectrum for use in an optical-spectrum measuring apparatus for measuring optical spectrum characteristics of a light source. In the method, a bandwidth storage section stores a characteristic of a bandwidth of passed wavelengths with respect to a measuring wavelength of a spectrometer. A CPU obtains a bandwidth of wavelengths with respect to each measuring point in accordance with the stored bandwidth of wavelengths. Then, measured intensities of light at the measuring points are used to add measured values across the measured value in a required range of bandwidth of optical frequencies. Moreover, correction is performed in accordance with a ratio of the bandwidth of wavelengths at each of the measuring points and the intervals of wavelength at the measuring points. Thus, an intensity of light at each of the measuring points is obtained.

Abstract translation: 一种用于光谱测量装置中用于测量光源的光谱特性的光谱的计算方法。 在该方法中，带宽存储部存储相对于光谱仪的测定波长的通过的波长的带宽的特性。 CPU根据所存储的波长带宽获得相对于每个测量点的波长带宽。 然后，测量点的光强度用于在光频带宽所需范围内的测量值上加上测量值。 此外，根据测量点处的波长的带宽与测量点处的波长间隔的比率进行校正。 因此，获得每个测量点的光强度。

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

IPC: G01J3/06 ,  G01J3/18 ,  G01J3/28

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。