公开(公告)号：US5600440A

公开(公告)日：1997-02-04

申请号：US498070

申请日：1995-07-05

Applicant: Charles S. Bendall

Inventor： Charles S. Bendall

IPC: G01B9/02

CPC classification number: G01B9/02027 ,  G01B9/0201 ,  G01J3/0229 ,  G01J3/4531 ,  G01B2290/40

Abstract: An interferometer employs liquid crystals to effect optical path length cges in a Michelson-type interferometer. A beam splitter divides a first optical signal into second and third optical signals. The second optical signal is directed through a first array of liquid crystals, and the third optical signal is directed through a second array of liquid crystals. Mirrors reflect the second and third optical signals back through the arrays to the beam splitter which combines them into a fourth optical signal having an interference pattern. A detector array transforms the fourth optical signal into an electrical signal. A processing circuit is used to modulate the indices of refraction of the liquid crystals to effectuate optical path length changes between the second and third optical signals. The data processor may also be employed to transform the electrical signal into digital data which may be analyzed to discern spectral characteristics of the first optical signal that are of interest.

Abstract translation: 干涉仪采用液晶来实现迈克尔逊型干涉仪中的光程长度变化。 分束器将第一光信号分成第二和第三光信号。 第二光信号被引导通过液晶的第一阵列，并且第三光信号被引导通过液晶的第二阵列。 反射镜将第二和第三光信号通过阵列反射到分束器，其将它们组合成具有干涉图案的第四光信号。 检测器阵列将第四光信号变换成电信号。 处理电路用于调制液晶的折射率，以实现第二和第三光信号之间的光程长度变化。 也可以使用数据处理器来将电信号转换为数字数据，数字数据可被分析以识别感兴趣的第一光信号的光谱特性。

公开(公告)号：US5570180A

公开(公告)日：1996-10-29

申请号：US518194

申请日：1995-08-23

Applicant: Yoshiroh Nagai

Inventor： Yoshiroh Nagai

IPC: G01J3/06 ,  G01J3/28 ,  G01J3/04

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。

公开(公告)号：US5365061A

公开(公告)日：1994-11-15

申请号：US958979

申请日：1992-10-09

Applicant: Carlos Enrique Munoz Elizondo

Inventor： Carlos Enrique Munoz Elizondo

IPC: G01J1/04 ,  G01J1/44 ,  H01J3/14

CPC classification number: G01J1/44 ,  G01J1/04 ,  G01J1/0437 ,  G01J1/0271 ,  G01J3/0229 ,  G01J3/0291

Abstract: The present invention refer to an optical device and data collecting system, more specifically to a system for collecting and analyzing the response of optical sensors, which use may be extended to a large number of devices and equipments with the purpose of analyzing objects in accordance with light reflected or generated thereby. The invention distinguishes from the prior art by having an extremely simple configuration which allows for the determination of specific features such as size, shape, color and speed among others, thus replacing conventional systems which, besides being expensive and complex, do not provide for a large assortment of information and are susceptible to errors and changes in view of environmental conditions.

Abstract translation: 本发明涉及一种光学装置和数据采集系统，更具体地涉及一种用于收集和分析光学传感器的响应的系统，其可以扩展到大量的设备和设备，目的是根据 由此反射或产生的光。 本发明通过具有非常简单的结构来区分现有技术，其允许确定诸如尺寸，形状，颜色和速度等特定特征，从而替代常规系统，除了昂贵和复杂之外，还不提供 大量的信息，并且由于环境条件而容易发生错误和变化。

公开(公告)号：US5311606A

公开(公告)日：1994-05-10

申请号：US14465

申请日：1993-02-05

Applicant: Hiroyuki Asakura ,  Masanori Iida ,  Tetsuji Miwa

Inventor： Hiroyuki Asakura ,  Masanori Iida ,  Tetsuji Miwa

IPC: G01J3/02 ,  G01J3/12 ,  G01J3/18 ,  G02B6/34 ,  G02B27/46 ,  H01S3/10 ,  G02B6/32

CPC classification number: G02B6/2931 ,  G01J3/02 ,  G01J3/0229 ,  G01J3/0262 ,  G01J3/18 ,  H01S3/10023 ,  G01J2003/1278 ,  H01S2301/04

Abstract: In an optical filter to be used for signal selection, removal of noise, equalizing the wavelength of signal light, etc. in an optical communication system, optical measurement device or the like, and in an optical amplifier employing such optical filter, signal light is dispersed at different angles according to each wavelength by a diffraction grating and the dispersed light is selectively transmitted or reflected by a transmission type spatial filter or reflection type spatial filter, and is then coupled with an output fiber bundle as non-dispersed light by the diffraction grating. Thus, the optical filter has variable wavelength pass band characteristics and the optical amplifier possesses a uniform wavelength amplification factor.

Abstract translation: 在光通信系统，光学测量装置等中用于信号选择，去除噪声，均衡信号光的波长等的光滤波器中，在使用这种滤光器的光放大器中，信号光是 通过衍射光栅根据每个波长以不同的角度分散，并且分散的光被透射型空间滤波器或反射型空间滤波器选择性地透射或反射，然后通过衍射与非分散光与输出光纤束耦合 光栅。 因此，滤光器具有可变的波长通带特性，并且光放大器具有均匀的波长放大系数。

公开(公告)号：US5221959A

公开(公告)日：1993-06-22

申请号：US667969

申请日：1991-03-12

Applicant: Nagaaki Ohyama ,  Susumu Kikuchi ,  Takeshi Mori

Inventor： Nagaaki Ohyama ,  Susumu Kikuchi ,  Takeshi Mori

IPC: G01J3/46 ,  G01J3/51 ,  G01N21/25

CPC classification number: G01N21/251 ,  G01J3/51 ,  G01J3/513 ,  G01J2003/467 ,  G01J3/0229 ,  G01J3/501 ,  G01N2201/067

Abstract: A color discrimination data input apparatus includes a light source for generating illumination light for illuminating a target object, a spectroscope for producing a spectrum having a plurality of spectral components, a color classification filter set to have a light-transmitting characteristic to pass only a light component having a wavelength range suitable for classification from the spectral components generated by the spectroscope in order to classify the spectral components reflected by the target object into predetermined classes, a photoelectric converting circuit for converting a reflected spectral component, upon radiation of the spectral component passing through the color classification filter on the target object, into an electrical signal, classifying circuit for classifying the reflected spectral components in accordance with the electrical signal output from the photoelectric converting circuit, the color estimating circuit of estimating a color of the target object from the reflected spectral component classified into any one of the classes by the classifying circuit on the basis of a preset absolute color estimation matrix, and an output unit for outputting a classification result obtained from the classifying circuit and an object color measurement result output from the color estimating circuit.

Abstract translation: 彩色识别数据输入装置包括用于产生用于照射目标物体的照明光的光源，用于产生具有多个光谱分量的光谱的分光镜，将具有透光特性的颜色分类滤光器设置为仅透过光 分量，其具有适合于由分光镜产生的光谱分量分类的波长范围，以将由目标对象反射的光谱分量分类为预定类别;光电转换电路，用于在经过光谱分量的辐射后转换反射的光谱分量 通过目标对象上的颜色分类滤波器，转换成电信号，根据从光电转换电路输出的电信号对反射光谱分量进行分类的分类电路，估计目标对象fr的颜色的颜色估计电路 基于预设的绝对颜色估计矩阵，通过分类电路分类为任何一个类别的反射光谱分量，以及用于输出从分类电路获得的分类结果的输出单元和从分类电路输出的对象颜色测量结果 颜色估计电路。

公开(公告)号：US5121239A

公开(公告)日：1992-06-09

申请号：US424479

申请日：1989-10-20

Applicant: David L. Post

Inventor： David L. Post

IPC: G01J3/12

CPC classification number: G01J3/12 ,  G01J2003/1204 ,  G01J2003/1269 ,  G01J2003/1282 ,  G01J3/0229

Abstract: An optical filter having a variable spectral transmittance function of selectable shape is described which includes a spectrum forming element for dispersing a light beam into a characteristic spectrum, an optical system for forming an image of the spectrum and directing the image into a multi-element electronic spatial light modulator, such as a liquid crystal display or electrophoretic display, and an optical system for projecting the spectrally filtered light as a directed beam.

Abstract translation: 描述了具有可选形状的可变光谱透射率函数的滤光器，其包括用于将光束分散到特征光谱中的光谱形成元件，用于形成光谱图像的光学系统并将图像引导到多元素电子 空间光调制器，例如液晶显示器或电泳显示器，以及用于将光谱滤波的光投影为定向光束的光学系统。

公开(公告)号：US4784487A

公开(公告)日：1988-11-15

申请号：US207037

申请日：1988-06-14

Applicant: George W. Hopkins, II ,  Barry G. Willis

Inventor： George W. Hopkins, II ,  Barry G. Willis

IPC: G01J3/02 ,  G01J3/28 ,  G01J3/10

CPC classification number: G01J3/02 ,  G01J3/0208 ,  G01J3/0229 ,  G01J3/024

Abstract: An optical relay having a pair of simple lenses and an opaque barrier defining an aperture. In a spectrometer, the optical relay is positioned between a light source and an opaque barrier defining a slit to focus light of a reference wavelength w.sub.r onto the slit. The location of the aperture and the choice of w.sub.r are selected so that the flux of light through the slit is substantially flat as a function of wavelength.

Abstract translation: 具有一对简单透镜和限定孔径的不透明屏障的光学继电器。 在光谱仪中，光学继电器位于光源和限定狭缝的不透明屏障之间，以将参考波长wr的光聚焦到狭缝上。 选择孔的位置和选择wr，使得通过狭缝的光通量作为波长的函数基本上是平坦的。

公开(公告)号：US4740082A

公开(公告)日：1988-04-26

申请号：US858555

申请日：1986-04-24

Applicant: Eugene F. Young

Inventor： Eugene F. Young

IPC: G01J3/02 ,  G01J3/08 ,  G01J3/453 ,  G01J3/45 ,  G01B9/02

CPC classification number: G01J3/02 ,  G01J3/0229 ,  G01J3/024 ,  G01J3/08 ,  G01J3/453

Abstract: A spectrophotometer includes means for ensuring that the active area of a detector is always filled regardless of the resolution aperture setting of the instrument.

Abstract translation: 分光光度计包括用于确保检测器的有效区域始终被填充的装置，而不管仪器的分辨率孔径设置如何。

公开(公告)号：US4687329A

公开(公告)日：1987-08-18

申请号：US941247

申请日：1986-12-12

Applicant: Steven G. Schultz

Inventor： Steven G. Schultz

IPC: G01J3/10 ,  G01J3/02 ,  G01J3/04 ,  G01J3/28 ,  G01N21/07 ,  H01L31/0216 ,  G01J3/36

CPC classification number: G01J3/02 ,  G01J3/0229 ,  G01J3/0259 ,  G01J3/0262 ,  G01J3/04 ,  G01J3/2803 ,  H01L31/02164 ,  G01J2003/2806 ,  G01N21/07 ,  G01N2201/0642 ,  G01N2201/0696

Abstract: An improved spectrophotometer, especially suitable for use in centrifugal analysis instrumentation, is disclosed. The spectrophotometer is improved by including therein a detector comprising a photodiode array assembly having a photodiode array, a spectral filter assembly situated substantially parallel thereto and in the path of incident light and means for attenuating stray light which would otherwise impinge on each of the photodiodes of the array.

Abstract translation: 公开了一种改进的分光光度计，特别适用于离心分析仪器。 通过在其中包括具有光电二极管阵列的光电二极管阵列组件的检测器来改进分光光度计，所述光电二极管阵列组件具有基本上平行于其的光谱滤波器组件和入射光的路径，以及用于衰减杂散光的装置，否则将会影响杂散光 阵列。

公开(公告)号：US4636074A

公开(公告)日：1987-01-13

申请号：US679080

申请日：1984-12-06

Applicant: Gilbert M. Levy ,  Alexander Quaglia ,  Robert E. Lazure

Inventor： Gilbert M. Levy ,  Alexander Quaglia ,  Robert E. Lazure

IPC: G01J3/02 ,  G01J3/12 ,  G01J3/18 ,  G01J3/28 ,  G01J3/443

CPC classification number: G01J3/18 ,  G01J3/02 ,  G01J3/0229 ,  G01J3/1809 ,  G01J2003/1278 ,  G01J3/2803

Abstract: An optical arrangement for use in spectrometry uses a masking device which eliminates unwanted spectral regions prior to optically resolving the unmasked information. The optical arrangement comprises an entrance slit to select incidence spectral energy from an energized source and a concave grating of relatively low dispersion to image the spectrum of the entrance slit onto a stationary mask which simultaneously selects spectral regions of the dispersed incident spectral energy. The selected spectral regions are collimated and recombined and directed onto an Echelle grating to disperse with high resolution the selected spectral regions. A concave mirror focuses the dispersed selected spectral regions into a focal plane of highly resolved spectral energy which can be detected to determine the spectral information coming from the source. The optical arrangement is particularly well suited for use with narrow spectral bandwidth spectral information distributed over a large spectral range. In spectroscopy, desired information very often occupies a tiny fraction of the total spectral information presented to a spectrometer. With this optical arrangement, spectral information can be selected from a much broader band spectral information and collected with high resolution on a small curvilinear portion of the output focal plane. The arrangement is particularly useful for absorption, light scattering or emission spectroscopy. It provides a stable mechanical design making it less sensitive to vibration. Manufacturing mechanical tolerances are also less restrictive.

Abstract translation: 用于光谱测定的光学装置使用掩蔽装置，其在光学解析未屏蔽的信息之前消除不需要的光谱区域。 光学装置包括入射狭缝，用于选择来自通电源的入射光谱能量和相对低色散的凹形光栅，以将入射狭缝的光谱成像到固定掩模上，同时选择分散的入射光谱能量的光谱区域。 所选择的光谱区域被准直并重组并引导到Echelle光栅上，以高分辨率分散所选择的光谱区域。 凹面镜将分散的所选光谱区域聚焦成高分辨光谱能量的焦平面，其可被检测以确定来自光源的光谱信息。 光学布置特别适用于分布在大光谱范围上的窄光谱带宽光谱信息。 在光谱学中，所需的信息通常占据提供给光谱仪的总光谱信息的一小部分。 利用这种光学布置，可以从更广泛的频谱光谱信息中选择光谱信息，并且在输出焦平面的小曲线部分上以高分辨率收集光谱信息。 该装置对于吸收，光散射或发射光谱特别有用。 它提供了稳定的机械设计，使其对振动的敏感性降低。 制造机械公差的限制也较少。