公开(公告)号：US4298797A

公开(公告)日：1981-11-03

申请号：US10820

申请日：1979-02-09

Applicant: Claude R. Bernard ,  Bernard Daigne ,  Francois Girard

Inventor： Claude R. Bernard ,  Bernard Daigne ,  Francois Girard

IPC: G01J3/18 ,  G01J3/20 ,  G01J3/36 ,  G01J1/42 ,  G01J3/28

CPC classification number: G01J3/20 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/36

Abstract: A spectrograph usable more particularly in the far ultraviolet range. It comprises along the Rowland circle measuring blocks including photo-detectors. Said measuring blocks are movably mounted along a guiding rail materializing the Rowland circle. Motion means are provided for the displacement of the various measuring blocks along the guiding rail. Transmission means between the motion means and a measuring block constantly direct the latter towards the diffraction grating.

Abstract translation: 更特别可用于远紫外线范围的光谱仪。 它包括罗兰圆测量块，包括光电探测器。 所述测量块沿着实现罗兰圆的导轨可移动地安装。 提供运动装置用于沿着导轨移动各种测量块。 运动装置和测量块之间的传输装置不断地将其指向衍射光栅。

公开(公告)号：US3495909A

公开(公告)日：1970-02-17

申请号：US3495909D

申请日：1965-12-17

Applicant: NORMAN N AXELROD

Inventor： AXELROD NORMAN N

IPC: G01J3/06 ,  G01J3/20

CPC classification number: G01J3/06 ,  G01J3/20

公开(公告)号：US11506535B1

公开(公告)日：2022-11-22

申请号：US17014902

申请日：2020-09-08

Applicant: Apple Inc.

Inventor： Yongming Tu ,  Alfredo Bismuto

IPC: G01J3/28 ,  G01J3/18 ,  G02B27/42 ,  G01J3/20 ,  G02B6/34 ,  G02B5/18

Abstract: Configurations for a diffraction grating design and methods thereof are disclosed. The diffraction grating system can include an input waveguide located at a first location on or near a Rowland circle and multiple output waveguides located at a second and third location on or near the Rowland circle. The input waveguide may be located between the output waveguides and this configuration of input and output waveguides can reduce the footprint size of the device. In some examples, the optical component can function as a de-multiplexer. Additionally, the optical component may separate the input wavelength band into two output wavelength bands which are separated from one another by approximately 0.1 μm.

公开(公告)号：US10670984B2

公开(公告)日：2020-06-02

申请号：US16202456

申请日：2018-11-28

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yu Miyajima

IPC: G01J3/02 ,  G03G15/01 ,  G01J3/42 ,  G01J3/20 ,  G02B5/10

Abstract: For the purpose of providing a light guiding member with a simple structure which is capable of suppressing risk that unnecessary light could be mixed in a primary optical path, a light guiding member according to the present invention includes an incident surface, a reflection surface which reflects a light flux from the incident surface, and a side surface disposed at a distance of 1.2 R or more from a center of the reflection surface, where R is a distance from the center to an edge portion of the reflection surface, in a direction perpendicular to a first cross-section including an incident light toward the reflection surface on an optical axis and a reflected light from the reflection surface on the optical axis.

公开(公告)号：US20190339129A1

公开(公告)日：2019-11-07

申请号：US16517530

申请日：2019-07-19

Applicant: OTO PHOTONICS INC.

Inventor： CHIEN-HSIANG HUNG

IPC: G01J3/18 ,  G01J3/02 ,  G01J3/20 ,  G01J3/28

Abstract: A spectrometer includes an input unit for receiving an optical signal, a diffraction grating disposed on the transmission path of the optical signal for dispersing the optical signal into a plurality of spectral rays, an image sensor disposed on the transmission path of at least a portion of the spectral rays, and a waveguide device. A waveguide space is formed between the first and second reflective surfaces of the waveguide device. The optical signal is transmitted from the input unit to the diffraction grating via the waveguide space. The portion of the spectral rays is transmitted to the image sensor via the waveguide space. At least one opening is formed on the waveguide device, and is substantially parallel to the first and/or second reflective surface. A portion of the spectral rays and/or the optical signal diffuses from the opening out of the waveguide space without reaching the image sensor.

公开(公告)号：US10436639B2

公开(公告)日：2019-10-08

申请号：US15546003

申请日：2015-01-23

Applicant: OTO PHOTONICS INC.

Inventor： Meng-Hua Wang ,  Kuei Wu Chang ,  Chang Cheng Chou ,  Chien-Hsiang Hung ,  Jan Liang Yeh

IPC: G01J3/02 ,  G01J3/20

Abstract: A spectrometer (100) and an optical input portion (32) thereof are disclosed. The optical input portion (32) comprises an assembly structure (322), and the assembly structure (322) is formed at a hole wall (321) of a through hole (3211) of the optical input portion (32). A light (L1) is incident into a dispersing element (2) of the spectrometer (100) along an optical path (13) after passing through the through hole (3211), and is dispersed by the dispersing element (2). The assembly structure (322) is used to be detachably assembled with an optical element (200). When the optical element (200) is assembled with the assembly structure (322), an optical axis of the optical element (200) is linked to the optical path (13). As a result, the light (L1) passing through the optical element (200) is incident to the dispersing element (2) along the optical axis and the optical path (13).

公开(公告)号：US07106441B2

公开(公告)日：2006-09-12

申请号：US10672207

申请日：2003-09-26

Applicant: Decai Sun ,  Joel A. Kubby ,  Jingkuang Chen ,  Alex T. Tran ,  Patrick Y. Maeda

Inventor： Decai Sun ,  Joel A. Kubby ,  Jingkuang Chen ,  Alex T. Tran ,  Patrick Y. Maeda

IPC: G01J3/20

CPC classification number: G01J3/06 ,  G01J3/02 ,  G01J3/0256 ,  G01J3/20

Abstract: A tunable microelectromechanical (MEMS) spectrophotometer with a rotating cylindrical reflective diffraction grating is integrated with a photodetector and an optical fiber light source on a Rowland circle on a monolithic silicon substrate.

Abstract translation: 具有旋转圆柱反射衍射光栅的可调谐微机电（MEMS）分光光度计与单片硅衬底上的Rowland圆上的光电检测器和光纤光源集成。

公开(公告)号：US5856870A

公开(公告)日：1999-01-05

申请号：US833671

申请日：1997-04-08

Applicant: Lawrence E. Curtiss

Inventor： Lawrence E. Curtiss

IPC: G01J3/04 ,  G01J3/18 ,  G01J3/20 ,  G01J3/36

CPC classification number: G01J3/20 ,  G01J3/0259 ,  G01J3/04 ,  G01J3/18

Abstract: A spectroanalytical system includes entrance aperture defining structure for receiving radiation to be analyzed along a first path; dispersion structure in the first path for spatially dispersing the radiation as a function of wavelength; exit aperture structure defining a non-elongate aperture for receiving radiation from the dispersion structure; detector aperture structure coupled to the exit aperture structure for detecting selected wavelengths of the dispersion radiation; and wedge-like conditioner structure disposed between the first path and between the dispersion structure and the entrance and exit aperture structures.

Abstract translation: 光谱分析系统包括用于沿着第一路径接收要分析的辐射的入口孔限定结构; 用于将辐射空间分散为波长的函数的第一路径中的分散结构; 出口孔结构限定用于接收来自分散结构的辐射的非细长孔; 耦合到出口孔结构的检测器孔结构，用于检测色散辐射的选定波长; 以及设置在第一路径之间和分散结构与入口和出口孔结构之间的楔形调节结构。

公开(公告)号：US5483335A

公开(公告)日：1996-01-09

申请号：US223225

申请日：1994-04-05

Applicant: Reginald Tobias

Inventor： Reginald Tobias

IPC: G01J3/20 ,  G01J3/32 ,  G01J3/02 ,  G01J3/42

CPC classification number: G01J3/32 ,  G01J2003/326 ,  G01J3/20

Abstract: Analysis of energy emanating from a source having a focal plane by converting the energy from the source into modulated spectral components simultaneously distributed according to frequency along a flat field, using, for example, a modulator, and then detecting and demodulating the spectral components, for example by a fast Fourier transform or synchronous demodulator with a ruled grating interposable between the source and the detector and a linear variable bandpass filter interposable between the source and the detector.

Abstract translation: 通过使用例如调制器将源自源的能量转换成根据平面频率同时分布的调制频谱分量，然后检测和解调频谱分量，分析从具有焦平面的源发出的能量，用于 通过快速傅里叶变换或同步解调器的示例，其具有可在源极和检测器之间插入的格栅光栅，以及可在源极和检测器之间插入的线性可变带通滤波器。

公开(公告)号：US5351262A

公开(公告)日：1994-09-27

申请号：US943273

申请日：1992-09-10

Applicant: Kai R. Poguntke ,  Julian B. D. Soole

Inventor： Kai R. Poguntke ,  Julian B. D. Soole

IPC: H01S3/10 ,  G01J3/20 ,  G02B6/12 ,  H01S3/08 ,  H01S3/101 ,  H01S5/00 ,  H01S5/026 ,  H01S5/14 ,  H01S5/40

CPC classification number: G02B6/12007 ,  H01S5/4062 ,  G01J3/20 ,  H01S3/08086 ,  H01S5/026 ,  H01S5/141 ,  H01S5/4087

Abstract: An integrated, multi-wavelength laser having formed on a substrate (12) a plurality of active, individually selectable waveguides (14), a passive output waveguide (16), and a diffraction grating (18) formed in a Rowland-circle spectrometer geometry. The frequency of the lasing light is determined by-the geometrical relationship of the selected active waveguide, the diffraction grating, and the output waveguide. The active waveguides are positioned such that lasing light cannot diffract between two active waveguides. Little crosstalk occurs because no carrier depletion occurs in the output waveguide.

Abstract translation: 一种集成的多波长激光器，其形成在基板（12）上，多个有源单独可选择的波导（14），无源输出波导（16）和衍射光栅（18），其形成为罗兰圆光谱仪几何形状 。 激光的频率由所选择的有源波导，衍射光栅和输出波导的几何关系决定。 有源波导被定位成使得激光不能在两个有源波导之间衍射。 由于在输出波导中没有发生载流子耗尽，所以发生小的串扰。