公开(公告)号：US5276548A

公开(公告)日：1994-01-04

申请号：US983747

申请日：1992-12-01

申请人： Eli Margalith

发明人： Eli Margalith

IPC分类号： G02F1/39 ,  H03F7/00

CPC分类号： G02F1/39

摘要： An Optical Parametric Oscillator (OPO) includes optical elements located and oriented so a pump beam is generating an idler beam and a signal beam while all of these beams propagate in common directions at any given time as they move through the OPO. In one form of the invention, the optical elements include a dichroic mirror, a non-linear crystal, and right angle prisms. The beams are reflected by one of the right angle prisms back through the non-linear crystal so that walkoff is cancelled.

摘要翻译： 光参量振荡器（OPO）包括定位和定向的光学元件，因此当光束移动通过OPO时，所有这些光束在任何给定时间沿共同方向传播时，产生惰轮和信号光束。 在本发明的一种形式中，光学元件包括二向色镜，非线性晶体和直角棱镜。 光束被直角棱镜中的一个反射回非线性晶体，从而取消了散开。

公开(公告)号：US20110228116A1

公开(公告)日：2011-09-22

申请号：US12661369

申请日：2010-03-16

申请人： Eli Margalith

发明人： Eli Margalith

IPC分类号： H04N5/228 ,  G01J3/40 ,  G01J3/00

CPC分类号： G01J3/2803 ,  G01J2003/1282 ,  G01N21/255 ,  G01N21/39 ,  G01N21/8901 ,  G01N21/8903 ,  G01N21/93

摘要： A spectral imaging system for collecting spectral information of a two dimensional heterogeneous objects while in motion relative to the imaging system without the use of a spectrograph, filters or any dispersive optics. The system includes a pulsed light source tunable in wavelength for producing short pulses of wavelength tuned light at a plurality of selected narrow band wavelengths within a spectral range and one or more optical components for conveying or directing the short pulses of light to a two dimensional region that is substantially stationary with respect to the imaging system and through which the two dimensional target is moving. The system also includes a many pixel camera synchronized with the tunable pulsed light source. The camera is adapted to detect light in the selected narrow band wavelengths produced by the tunable pulsed light source and reflected from or transmitted through the two dimensional target in motion relative to the imaging system and to provide image frame information with each frame at a defined wavelength band. A processor processes information from said tunable light source and said camera and to produce multi-spectral images of the target.

摘要翻译： 一种用于在不使用光谱仪，滤光器或任何色散光学器件的情况下相对于成像系统运动地收集二维异质物体的光谱信息的光谱成像系统。 该系统包括可调波长的脉冲光源，用于在光谱范围内产生多个选定的窄带波长的波长调谐光的短脉冲，以及用于将短脉冲光输送或引导到二维区域的一个或多个光学部件 相对于成像系统基本上是静止的，并且二维目标物通过其移动。 该系统还包括与可调谐脉冲光源同步的许多像素摄像机。 相机适于检测由可调谐脉冲光源产生的所选窄带波长的光，并相对于成像系统在相对于成像系统运动的相对于二维目标物体反射或透射通过二维目标物并且以确定的波长的每帧提供图像帧信息 带。 处理器处理来自所述可调谐光源和所述相机的信息并产生所述目标的多光谱图像。

公开(公告)号：US20160334691A1

公开(公告)日：2016-11-17

申请号：US14545504

申请日：2015-05-13

申请人： Eli Margalith

发明人： Eli Margalith

IPC分类号： G02F1/355 ,  G02F1/39

CPC分类号： G02F1/3551 ,  G02F1/39 ,  G02F2001/392 ,  G02F2201/17

摘要： An Optical Parametric Oscillator (OPO) that includes optical elements located and oriented to form a non-planer, image-rotating ring cavity. To provide a high quality well shaped output beam, the OPO comprises a plurality of reflecting surfaces, designed to rotate the resonating beam by 90 degrees for each round trip in the cavity. Preferred embodiments include a first non-linear crystals and a similar second non-linear crystal mounted side-by-side on a single rotating stage. To minimize the adverse effects of walk-off, a reflecting unit is positioned to cause the output of the first crystal to be reflected into the second crystal. The two crystals are aligned so as to cause walk-off produced in the first of the two crystals to be cancelled by opposite walk-off produced in the second crystal.

摘要翻译： 光学参数振荡器（OPO），其包括位于并定向成形成非平面图像旋转环形腔的光学元件。 为了提供高质量的良好的输出光束，OPO包括多个反射表面，设计成使谐振光束在空腔中每次往返旋转90度。 优选实施例包括在单个旋转台上并排安装的第一非线性晶体和类似的第二非线性晶体。 为了最小化脱落的不利影响，反射单元被定位成使得第一晶体的输出被反射到第二晶体中。 这两个晶体排列成使得在两个晶体中的第一个晶体中产生的散射通过在第二晶体中产生的相反的偏移来抵消。

公开(公告)号：US08687055B2

公开(公告)日：2014-04-01

申请号：US12661369

申请日：2010-03-16

申请人： Eli Margalith

发明人： Eli Margalith

IPC分类号： G01J3/00

CPC分类号： G01J3/2803 ,  G01J2003/1282 ,  G01N21/255 ,  G01N21/39 ,  G01N21/8901 ,  G01N21/8903 ,  G01N21/93

摘要： A spectral imaging system for collecting spectral information of a two dimensional heterogeneous objects while in motion relative to the imaging system without the use of a spectrograph, filters or any dispersive optics. The system includes a pulsed light source tunable in wavelength for producing short pulses of wavelength tuned light at a plurality of selected narrow band wavelengths within a spectral range and one or more optical components for conveying or directing the short pulses of light to a two dimensional region that is substantially stationary with respect to the imaging system and through which the two dimensional target is moving. The system also includes a many pixel camera synchronized with the tunable pulsed light source. The camera is adapted to detect light in the selected narrow band wavelengths produced by the tunable pulsed light source and reflected from or transmitted through the two dimensional target in motion relative to the imaging system and to provide image frame information with each frame at a defined wavelength band. A processor processes information from said tunable light source and said camera and to produce multi-spectral images of the target.

摘要翻译： 一种用于在不使用光谱仪，滤光器或任何色散光学器件的情况下相对于成像系统运动地收集二维异质物体的光谱信息的光谱成像系统。 该系统包括可调波长的脉冲光源，用于在光谱范围内产生多个选定的窄带波长的波长调谐光的短脉冲，以及用于将短脉冲光输送或引导到二维区域的一个或多个光学部件 相对于成像系统基本上是静止的，并且二维目标物通过其移动。 该系统还包括与可调谐脉冲光源同步的许多像素摄像机。 相机适于检测由可调谐脉冲光源产生的所选窄带波长中的光，并相对于成像系统在相对于成像系统运动的相对于二维目标物体中反射或透射，并且以确定的波长为每帧提供图像帧信息 带。 处理器处理来自所述可调谐光源和所述相机的信息并产生所述目标的多光谱图像。

公开(公告)号：US07233392B2

公开(公告)日：2007-06-19

申请号：US10810777

申请日：2004-03-25

申请人： Eli Margalith ,  Rhett James Barnes

发明人： Eli Margalith ,  Rhett James Barnes

IPC分类号： G01J3/00

CPC分类号： G01J3/10 ,  G01J3/2823

摘要： A spectral imaging device with a narrow band spectrally tunable light source. The light source includes an optical parametric oscillator that can be tuned across a wide range of wavelengths while illuminating a target. In a preferred embodiment, a Q-switched YAG laser pumps the OPO. Two-dimensional images of the target may be detected at various wavelengths by a imaging sensor with a many pixel focal plane array to generate data arrays known as hyper-spectral image cubes. These images detecting variations is optical parameters including transmission, reflectivity, and fluorescence of the target can be obtained in various spectral ranges from ultraviolet to infrared for a variety of applications in metrology, agriculture, life sciences, and in the pharmaceutical industry.

摘要翻译： 具有窄带光谱可调谐光源的光谱成像装置。 光源包括光学参量振荡器，其可以在宽范围的波长下被调谐，同时照亮目标。 在优选实施例中，Q开关YAG激光泵浦OPO。 可以通过具有许多像素焦平面阵列的成像传感器在各种波长处检测目标的二维图像，以生成称为超光谱图像立方体的数据阵列。 这些检测变化的图像是在计量学，农业，生命科学和制药工业中用于各种应用的紫外线到红外的各种光谱范围中的光学参数，包括透射，反射率和荧光。

公开(公告)号：US09170470B1

公开(公告)日：2015-10-27

申请号：US14121438

申请日：2014-09-06

申请人： Eli Margalith

发明人： Eli Margalith

IPC分类号： G02F1/39 ,  H01S3/00 ,  H01S3/16

CPC分类号： G02F1/3551 ,  G02F1/39 ,  G02F2001/392 ,  G02F2201/17

摘要： An Optical Parametric Oscillator (OPO) that includes optical elements located and oriented to form a non-planer, image-rotating ring cavity. To provide a high quality well shaped output beam, the OPO comprises a plurality of reflecting surfaces, designed to rotate the resonating beam by 90 degrees for each round trip in the cavity. Preferred embodiments include a first non-linear crystals and a similar second non-linear crystal mounted side-by-side on a single rotating stage. To minimize the adverse effects of walk-off, reflecting unit is positioned to cause the output of the first crystal to be reflected into the second crystal. The two crystals are aligned so as to cause walk-off in the first of the two crystals to be cancelled by opposite walk-off in the second crystal.

摘要翻译： 光学参数振荡器（OPO），其包括位于并定向成形成非平面图像旋转环形腔的光学元件。 为了提供高质量的良好的输出光束，OPO包括多个反射表面，设计成使谐振光束在空腔中每次往返旋转90度。 优选实施例包括在单个旋转台上并排安装的第一非线性晶体和类似的第二非线性晶体。 为了最大限度地减少脱落的不利影响，反射单元定位成使得第一晶体的输出被反射到第二晶体中。 这两个晶体被排列成使得在两个晶体中的第一个晶体中的离散被第二个晶体中相反的偏移消除。

公开(公告)号：US20050213089A1

公开(公告)日：2005-09-29

申请号：US10810777

申请日：2004-03-25

申请人： Eli Margalith ,  Rhett Barnes

发明人： Eli Margalith ,  Rhett Barnes

IPC分类号： G01J3/10 ,  G01J3/28

CPC分类号： G01J3/10 ,  G01J3/2823

摘要： A spectral imaging device with a narrow band spectrally tunable light source. The light source includes an optical parametric oscillator that can be tuned across a wide range of wavelengths while illuminating a target. In a preferred embodiment, a Q-switched YAG laser pumps the OPO. Two-dimensional images of the target may be detected at various wavelengths by a imaging sensor with a many pixel focal plane array to generate data arrays known as hyper-spectral image cubes. These images detecting variations is optical parameters including transmission, reflectivity, and fluorescence of the target can be obtained in various spectral ranges from ultraviolet to infrared for a variety of applications in metrology, agriculture, life sciences, and in the pharmaceutical industry.

摘要翻译： 具有窄带光谱可调谐光源的光谱成像装置。 光源包括光学参量振荡器，其可以在宽范围的波长下被调谐，同时照亮目标。 在优选实施例中，Q开关YAG激光泵浦OPO。 可以通过具有许多像素焦平面阵列的成像传感器在各种波长处检测目标的二维图像，以生成称为超光谱图像立方体的数据阵列。 这些检测变化的图像是在计量学，农业，生命科学和制药工业中用于各种应用的紫外线到红外的各种光谱范围中的光学参数，包括透射，反射率和荧光。

公开(公告)号：US06295160B1

公开(公告)日：2001-09-25

申请号：US09250721

申请日：1999-02-16

申请人： Kevin Dapeng Zhang ,  Eli Margalith

发明人： Kevin Dapeng Zhang ,  Eli Margalith

IPC分类号： G02F139

CPC分类号： G02F1/39 ,  G02F2201/17

摘要： An optical parametric oscillator for converting the wavelength of a laser pump beam into a signal wavelength and an idler wavelength. A co-linear double resonance cavity is created with a right angle prism serving as a maximum reflector for both the pump beam as well as the signal and idler beams. A non-linear crystal is positioned within said resonance cavity and is pivoted to tune the oscillator. A pump beam deflector is positioned to deflect the pump beam into the resonance cavity. The deflector preferably is a mirror with a multi-layer coating configured to provide maximum reflection at the wavelength of the pump beam and maximum transmittal of the signal and idler beams over their ranges. The pump beam passes twice through said non-linear crystal and is efficiently converted into said signal and idler beams in said non-linear crystal. The deflector can be placed inside or outside the cavity. In a preferred embodiment the output coupler is an uncoated window.

摘要翻译： 一种用于将激光泵浦光束的波长转换为信号波长和惰性波长的光学参数振荡器。 产生共线双谐振腔，其中直角棱镜用作泵浦光束以及信号和惰轮的最大反射器。 非线性晶体位于所述共振腔内并被枢转以调谐振荡器。 泵浦光束偏转器被定位成将泵浦光束偏转到谐振腔中。 偏转器优选地是具有多层涂层的反射镜，其被配置为在泵浦波长的波长处提供最大反射，并且在其范围上信号和惰轮的最大传输。 泵浦光束通过所述非线性晶体两次，并且有效地转换成所述非线性晶体中的所述信号和惰轮。 偏转器可以放置在腔体的内部或外部。 在优选实施例中，输出耦合器是未涂覆的窗口。