公开(公告)号：US5291022A

公开(公告)日：1994-03-01

申请号：US907127

申请日：1992-07-01

Applicant: David M. Drake ,  Charles D. Woodward ,  John M. Coffin

Inventor： David M. Drake ,  Charles D. Woodward ,  John M. Coffin

IPC: G01J3/10 ,  H01K1/28 ,  H01K13/00 ,  H01K1/02

CPC classification number: H01K13/00 ,  G01J3/108 ,  H01K1/28

Abstract: An infrared source for use in an infrared spectrometer includes an insulator core having a containment cavity, an outlet port in communication with the containment cavity, and an electrically heated infrared element mounted in the containment cavity with a portion thereof facing the outlet port and with the walls of the containment cavity closely spaced to the infrared element. The insulator core is formed of a ceramic fiber material which has excellent resistance to heat and very low thermal conductivity so that very little heat from the infrared element escapes from the insulator core except as infrared radiation through the outlet port. The insulator core is preferably mounted within a central cavity of a metal housing, and may be sealed off from the ambient atmosphere by an infrared transmissive window sealed to an outlet opening in the housing. The electrical supply lines from the infrared element may extend through an opening in the housing which is closed and sealed to inhibit the passage of gases from the ambient atmosphere into the interior of the housing. Where the infrared element is sealed off from the ambient atmosphere in this manner, potentially corrosive gases will be inhibited from reaching the hot infrared element. This containment of the infrared element within the insulator core allows the element to be maintained at a desired temperature for radiating infrared for use in analytical instruments such as infrared spectrometers, while consuming very low amounts of electrical power.

Abstract translation: 用于红外光谱仪的红外源包括具有容纳腔的绝缘体芯，与容纳腔相连通的出口，以及安装在容纳空腔中的电加热红外元件，其一部分面向出口并与 容纳腔的壁与红外线元件紧密地间隔开。 绝缘体芯由陶瓷纤维材料形成，其具有优异的耐热性和非常低的热导率，使得除了通过出口的红外辐射之外，来自红外线元件的极少的热量从绝缘体芯逸出。 绝缘体芯优选地安装在金属壳体的中心腔内，并且可以通过密封到壳体中的出口开口的红外透射窗口与环境大气密封。 来自红外元件的电源线可以延伸穿过壳体中的开口，该开口被封闭和密封，以阻止气体从周围大气通入壳体的内部。 红外线元件以这种方式与环境大气密封在一起，可能会阻止潜在的腐蚀性气体到达热红外线元件。 绝缘体芯中的红外元件的这种容纳允许元件保持在期望的温度，以便在消耗非常低的电功率的情况下将红外线用于分析仪器，例如红外光谱仪。

公开(公告)号：US5134302A

公开(公告)日：1992-07-28

申请号：US588628

申请日：1990-09-26

Applicant: Robert D. Rosenthal

Inventor： Robert D. Rosenthal

IPC: G01J3/427 ,  A61B5/00 ,  G01J3/10 ,  G01N21/25 ,  G01N21/35

CPC classification number: A61B5/1455 ,  A61B5/14532 ,  G01J3/108 ,  G01N21/255 ,  G01N21/359 ,  G01N2201/0621

Abstract: A method and means for generating synthetic spectra allowing quantitative measurement utilizes dual chip alternatively energized IREDs with optical bandpass filter(s) passing two optical bands which could be combined with curvilinear interpolation to be utilized in a low cost small size quantitative measuring instrument.

Abstract translation: 用于产生允许定量测量的合成光谱的方法和装置利用具有通过两个光谱带的光学带通滤光器的双芯片交替供电的IRED，其可以与曲线插值组合以用于低成本小尺寸定量测量仪器中。

公开(公告)号：US5003184A

公开(公告)日：1991-03-26

申请号：US398692

申请日：1989-08-25

Applicant: Robert N. Hunt ,  Robert L. Sandridge

Inventor： Robert N. Hunt ,  Robert L. Sandridge

IPC: G01J3/10 ,  G01J3/45 ,  G01N21/35

CPC classification number: G01J3/108 ,  G01J3/45 ,  G01N21/3504

Abstract: An infrared source suitable for use as a remote source for infrared interferometer spectrometers. This device is composed of a heat source, a black body radiating element and a concave reflector. A support to maintain the heat source and black body radiating elements in proper position is also preferably included. The device of the present invention enhances the accuracy and sensitivity of gas sensing devices based upon measurement of background infrared radiation, and allows the remote infrared source to be used in locations in which ignitable materials may be present.

公开(公告)号：US4620104A

公开(公告)日：1986-10-28

申请号：US545388

申请日：1983-09-28

Applicant: Per-Erik Nordal ,  Svein O. Kanstad

Inventor： Per-Erik Nordal ,  Svein O. Kanstad

IPC: G01J3/10 ,  H05B3/26

CPC classification number: G01J3/108 ,  H05B3/26 ,  H05B2203/011 ,  H05B2203/013 ,  H05B2203/032

Abstract: Infrared radiation source arrangement, in particular for use in infrared spectral analysis. To an electrically insulating substrate (2) there is applied one and preferably at least two separate electrically conductive films (2a, 2b) adapted to be heated by application of a time dependent electric current thereto. Tow or more films may form a radiation group (array) in which each film (2a, 2b) is adapted to be energized separately with electric current from an electric drive circuit (1) for applying a time dependent, preferably pulse shaped electric current to the film or films, so that infrared radiation pulses are emitted. The electric current is time controlled in order that the radiation pulses from the respective films may be distinguished from each other in a detector (6). The thickness of the substrate and the thermal conductivity, specific heat and density of the substrate material are so chosen that the thermal time constant is adapted to the pulse frequency range of the drive circuit.

Abstract translation: PCT No.PCT / NO83 / 00006 Sec。 371日期1983年9月28日第 102（e）1983年9月28日PCT提交1983年2月16日PCT公布。 第WO83 / 03001号公报 日期：1983年9月1日。红外辐射源安排，特别用于红外光谱分析。 对于电绝缘基板（2），应用一个并且优选至少两个独立的导电膜（2a，2b），其适于通过对其施加时间依赖性电流而被加热。 拖拉或更多的膜可以形成辐射群（阵列），其中每个膜（2a，2b）适于用来自电驱动电路（1）的电流分开地通电，用于将时间依赖的，优选地脉冲形的电流施加到 膜或膜，以便发射红外辐射脉冲。 时间控制电流，以便可以在检测器（6）中将来自各个膜的辐射脉冲彼此区分开来。 衬底的厚度以及衬底材料的热导率，比热和密度被选择为使热时间常数适应于驱动电路的脉冲频率范围。

公开(公告)号：US4499382A

公开(公告)日：1985-02-12

申请号：US434817

申请日：1982-10-18

Applicant: Kent D. Vincent

Inventor： Kent D. Vincent

IPC: G01J3/10 ,  H05B3/40 ,  H05B3/46 ,  G21G4/00

CPC classification number: H05B3/40 ,  G01J3/108 ,  H05B3/46

Abstract: A novel structure for a small, inexpensive, and easily replaced infrared source having near blackbody emission over a spectrum of 2-20 micron wavelengths is disclosed. The source element is self-starting and has a life expectancy in excess of 1000 hours at 1700 degrees K, which requires only 22 watts of power to maintain. Because the source is energy efficient, there is no need of auxilliary cooling or added thermal isolation from adjacent components when the source is used in an instrument such as a spectrophotometer.

Abstract translation: 公开了一种用于在2-20微米波长的光谱范围内具有近黑体发射的小型，便宜且易于替换的红外源的新型结构。 源元件是自启动的，并且在1700度K下的预期寿命超过1000小时，这仅需要22瓦的功率来维持。 因为光源是节能的，当光源用于分光光度计等仪器时，不需要辅助冷却或相邻部件的热隔离。

公开(公告)号：US12007275B2

公开(公告)日：2024-06-11

申请号：US17576117

申请日：2022-01-14

Applicant: Apple Inc.

Inventor： Mark Alan Arbore ,  Gary Shambat ,  Matthew A. Terrel

IPC: G01J3/02 ,  G01J3/10 ,  G01J3/36 ,  G01J3/42 ,  G01N21/25 ,  G01N21/47 ,  G01N21/49

CPC classification number: G01J3/0229 ,  G01J3/0205 ,  G01J3/0216 ,  G01J3/0256 ,  G01J3/0294 ,  G01J3/10 ,  G01J3/108 ,  G01J3/36 ,  G01J3/42 ,  G01N21/25 ,  G01N21/49 ,  G01N2021/4711

Abstract: Systems and methods for determining one or more properties of a sample are disclosed. The systems and methods disclosed can be capable of measuring along multiple locations and can reimage and resolve multiple optical paths within the sample. The system can be configured with one-layer or two-layers of optics suitable for a compact system. The optics can be simplified to reduce the number and complexity of the coated optical surfaces, et al. on effects, manufacturing tolerance stack-up problems, and interference-based spectroscopic errors. The size, number, and placement of the optics can enable multiple simultaneous or non-simultaneous measurements at various locations across and within the sample. Moreover, the systems can be configured with an optical spacer window located between the sample and the optics, and methods to account for changes in optical paths due to inclusion of the optical spacer window are disclosed.

公开(公告)号：US11988556B2

公开(公告)日：2024-05-21

申请号：US18180736

申请日：2023-03-08

Applicant: VERIFOOD, LTD.

Inventor： Damian Goldring ,  Dror Sharon ,  Guy Brodetzki ,  Amit Ruf ,  Menahem Kaplan ,  Sagee Rosen ,  Omer Keilaf ,  Uri Kinrot ,  Kai Engelhardt ,  Ittai Nir

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/10 ,  G01J3/12 ,  G01J3/26 ,  G01J3/36 ,  G01J3/45 ,  G01J5/02 ,  G01J5/10 ,  G01N21/25 ,  G01N33/02

CPC classification number: G01J3/108 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/0229 ,  G01J3/0256 ,  G01J3/0259 ,  G01J3/0262 ,  G01J3/0264 ,  G01J3/0272 ,  G01J3/10 ,  G01J3/12 ,  G01J3/26 ,  G01J3/28 ,  G01J3/2803 ,  G01J3/36 ,  G01J3/45 ,  G01J5/0265 ,  G01J5/10 ,  G01N21/255 ,  G01N33/02 ,  G01J3/0291 ,  G01J2003/1226 ,  G01J2003/123 ,  G01J2003/1239

Abstract: A spectrometer comprises a plurality of isolated optical channels comprising a plurality of isolated optical paths. The isolated optical paths decrease cross-talk among the optical paths and allow the spectrometer to have a decreased length with increased resolution. In many embodiments, the isolated optical paths comprise isolated parallel optical paths that allow the length of the device to be decreased substantially. In many embodiments, each isolated optical path extends from a filter of a filter array, through a lens of a lens array, through a channel of a support array, to a region of a sensor array. Each region of the sensor array comprises a plurality of sensor elements in which a location of the sensor element corresponds to the wavelength of light received based on an angle of light received at the location, the focal length of the lens and the central wavelength of the filter.

公开(公告)号：US11977026B2

公开(公告)日：2024-05-07

申请号：US17781259

申请日：2019-12-27

Applicant: Hitachi High-Tech Corporation

Inventor： Mizuki Mohara ,  Kei Shimura ,  Kenji Aiko

IPC: G01N21/3581 ,  G01J3/10 ,  G01J3/14 ,  G01J3/28 ,  G02F1/355

CPC classification number: G01N21/3581 ,  G01J3/108 ,  G01J3/14 ,  G01J3/2803 ,  G02F1/3551

Abstract: This invention addresses the abovementioned problem, and the purpose of this invention is to provide a far-infrared spectroscopy device that uses an is-TPG method to generate far-infrared light, and is capable of efficiently detecting is-TPG light without a detection optical system being fine-tuned. Even if the far-infrared light incidence angles on an Si prism for detection are the same when far-infrared light having a first frequency is incident on a non-linear optical crystal for detection and when far-infrared light having a second frequency is incident on the non-linear optical crystal for detection, this far-infrared spectroscopy device adjusts the incidence surface angle of pump light in relation to the non-linear optical crystal for detection such that the angle of the far-infrared light in relation to the pump light within the non-linear optical crystal for detection can be appropriately set for each far-infrared light frequency (see FIG. 1A).

公开(公告)号：US20240053198A1

公开(公告)日：2024-02-15

申请号：US17885042

申请日：2022-08-10

Applicant: Wisconsin Alumni Research Foundation

Inventor： Scott Sanders

IPC: G01J3/02 ,  G01J3/42 ,  G01J3/10 ,  G01N21/35

CPC classification number: G01J3/0297 ,  G01J3/0224 ,  G01J3/42 ,  G01J3/0208 ,  G01J3/108 ,  G01N21/35 ,  G01N2021/3595

Abstract: An absorption spectrometer with self-referencing calibration takes two measurements along a first and second path having different distances through a sample while largely preserving all other aspects of the optical path and system constant. Comparing these two measurements allows extraction of the spectrum largely free from instrument-specific artifacts.

公开(公告)号：US11879731B2

公开(公告)日：2024-01-23

申请号：US17943474

申请日：2022-09-13

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tomofumi Suzuki ,  Kyosuke Kotani ,  Tatsuya Sugimoto ,  Yutaka Kuramoto ,  Katsumi Shibayama ,  Noburo Hosokawa ,  Hirokazu Yamamoto ,  Takuo Koyama

IPC: G01B9/02 ,  B81B3/00 ,  G01J3/02 ,  G01J3/10 ,  G01J3/14 ,  G01J3/45 ,  G02B7/182 ,  G02B26/08 ,  G02B27/14 ,  G01J3/453

CPC classification number: G01B9/02051 ,  B81B3/00 ,  B81B3/007 ,  B81B3/0021 ,  G01B9/02049 ,  G01J3/021 ,  G01J3/0202 ,  G01J3/0237 ,  G01J3/108 ,  G01J3/14 ,  G01J3/45 ,  G02B7/182 ,  G02B26/0816 ,  G02B26/0833 ,  G02B26/0841 ,  G02B27/144 ,  B81B2201/042 ,  B81B2203/0154 ,  G01B2290/25 ,  G01B2290/35 ,  G01J3/4532 ,  G01J3/4535 ,  G01J2003/104

Abstract: A mirror unit 2 includes a mirror device 20 including a base 21 and a movable mirror 22, an optical function member 13, and a fixed mirror 16 that is disposed on a side opposite to the mirror device 20 with respect to the optical function member 13. The mirror device 20 is provided with a light passage portion 24 that constitutes a first portion of an optical path between the beam splitter unit 3 and the fixed mirror 16. The optical function member 13 is provided with a light transmitting portion 14 that constitutes a second portion of the optical path between the beam splitter unit 3 and the fixed mirror 16. A second surface 21b of the base 21 and a third surface 13a of the optical function member 13 are joined to each other.