公开(公告)号：US20170268927A1

公开(公告)日：2017-09-21

申请号：US15614307

申请日：2017-06-05

Applicant: Burt J. Beardsley ,  Wendy Beardsley

Inventor： Burt J. Beardsley ,  Wendy Beardsley

IPC: G01J3/02 ,  G02B5/00 ,  G02B27/30 ,  G01J3/18 ,  G02B5/18 ,  G01J3/28 ,  G01N21/25 ,  G01N21/71 ,  G02B17/08 ,  G02B5/04

CPC classification number: G01J3/0208 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/1809 ,  G01J3/2823 ,  G01J2003/1208 ,  G01N21/718 ,  G02B5/005 ,  G02B5/04 ,  G02B5/1842 ,  G02B17/0832 ,  G02B17/0848 ,  G02B27/30

Abstract: A spectrograph that includes camera focusing optics with a primary mirror having a concave-shaped reflective mirror surface, a secondary mirror having a convex-shaped reflective mirror surface and positioned to receive light reflected by the primary mirror, a tertiary mirror having a concave reflective mirror surface and positioned to receive light reflected by the secondary mirror, and a field correcting lens comprising a convex lens surface in combination with a concave lens surface, wherein light received by said field correcting lens from said tertiary mirror enters said convex lens surface, traverses said field correcting lens, and exits from said concave lens surface. The optional field correcting lens is positioned such that the primary mirror, secondary mirror, tertiary mirror, and the field correcting lens share the common parent vertex axis.

公开(公告)号：US09752934B2

公开(公告)日：2017-09-05

申请号：US14478903

申请日：2014-09-05

Applicant: SHIMADZU CORPORATION

Inventor： Hiroyuki Minato

IPC: G01J3/42 ,  G01J3/18 ,  G01J3/28

CPC classification number: G01J3/18 ,  G01J3/28 ,  G01J2003/2866

Abstract: Provided is a method for performing a wavelength calibration of a monochromator with a diffraction grating by casting light from a standard light source whose emission intensity contains a change with a predetermined cycle onto the diffraction grating and measuring an intensity of light reflected by the grating. The method includes the steps of: measuring at least two times the intensity of the reflected light from the grating within the aforementioned cycle at each of the rotational positions of the grating corresponding to a range of wavelengths including a peak wavelength of a bright line spectral light generated by the standard light source; determining an intensity value 201 at each rotational position based on all the measured values obtained at the rotational position; and locating, as the peak wavelength of the bright line spectral light, a wavelength at which the intensity value 201 is maximized.

公开(公告)号：US20170244218A1

公开(公告)日：2017-08-24

申请号：US15248763

申请日：2016-08-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kwang Ryong OH

IPC: H01S5/14 ,  G01J3/45 ,  G01J3/18 ,  H01S5/028

CPC classification number: H01S5/141 ,  G01J3/1804 ,  G01J2003/1842 ,  G01J2003/451 ,  H01S5/0028 ,  H01S5/028 ,  H01S5/4062 ,  H01S5/4068

Abstract: Disclosed is an optical sensor, including an external cavity laser configured to output sensing light and reference light; and a photodetector configured to detect a beating signal by an interference of the sensing light and the reference light output from the external cavity laser, in which the external cavity laser includes a reflecting filter including a sensing grating, to which a sensing object is attachable, and a reference grating, which is disposed on the same plane as that of the sensing grating, and outputs sensing light reflected from the sensing grating and reference light reflected from the reference grating. Accordingly, the optical sensor does not require a high-resolution spectroscope and has improved resolution and sensitivity.

公开(公告)号：US09709488B2

公开(公告)日：2017-07-18

申请号：US14917725

申请日：2014-06-26

Applicant: NEC Corporation

Inventor： Shin Tominaga ,  Yasuhiro Sasaki ,  Masatake Takahashi ,  Junichiro Mataga

IPC: G01J3/40 ,  G01N21/41 ,  G01J3/36 ,  G02B5/32 ,  H01L31/0232 ,  H04N9/04 ,  G01J3/18 ,  G01J5/02 ,  G02B3/00 ,  G01J3/28

CPC classification number: G01N21/41 ,  G01J3/1838 ,  G01J3/36 ,  G01J5/02 ,  G01J2003/2813 ,  G01N2201/068 ,  G02B3/0056 ,  G02B3/0087 ,  G02B5/32 ,  H01L31/0232 ,  H04N9/045 ,  H04N2209/042

Abstract: A sensor unit (100) provided with a substrate (101), a plurality of light-receiving units (102) that are provided on the substrate (101) and detect light, and a diffraction grating layer (103) that is provided on the substrate (101) and the light-receiving units (102) and has at least two diffraction means for diffracting light of corresponding wavelengths and condensing the light onto the light-receiving units, wherein at least two of the diffraction means are composed from holograms formed on a first diffraction grating layer and at least a portion of the plurality of holograms formed on the first diffraction grating layer overlap at least partially with another adjacent hologram.

公开(公告)号：US20170184453A1

公开(公告)日：2017-06-29

申请号：US15387449

申请日：2016-12-21

Applicant: Oak Analytics

Inventor： Ruibo Wang ,  Pawel Adam Menzfeld

IPC: G01J3/10 ,  G01J3/02 ,  G01J3/44 ,  G01J3/18

CPC classification number: G01J3/10 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0227 ,  G01J3/0256 ,  G01J3/0264 ,  G01J3/0291 ,  G01J3/0297 ,  G01J3/06 ,  G01J3/18 ,  G01J3/2803 ,  G01J3/36 ,  G01J3/44 ,  G01J3/4406 ,  G01J3/4412

Abstract: A compact spectrometer includes an excitation light source configured to generate excitation light and arranged to illuminate a spot on a sample. A dispersive element includes at least one movable component and spatially separates output light emanating from the sample in response to the excitation light into a plurality of different wavelength bands. A moveable component of the dispersive element causes the plurality of different wavelength bands of the output light to be scanned across a detector. The detector includes at least one light sensor that senses the wavelength bands of the output light and generates an output electrical signal in response to the sensed output light.

公开(公告)号：US20170167918A1

公开(公告)日：2017-06-15

申请号：US15355399

申请日：2016-11-18

Applicant: HORIBA, Ltd.

Inventor： Kimihiko Arimoto ,  Takuya Onoda ,  Tatsuya Nakahara

IPC: G01J3/02 ,  G01J3/18 ,  G01J3/42

CPC classification number: G01J3/0297 ,  G01J3/0208 ,  G01J3/18 ,  G01J3/28 ,  G01J3/42 ,  G01N21/0303 ,  G01N21/05 ,  G01N21/27 ,  G01N21/276 ,  G01N2021/0389

Abstract: In order to reduce a variation in the light amount of light detected in every reference measurement cycle in an absorption spectrometer 1, it is adapted to tilt at least one surface selected from among incident surfaces and emitting surfaces of all translucent members constituting a reference cell with respect to the light axis of light traveling along a light path.

公开(公告)号：US09677938B2

公开(公告)日：2017-06-13

申请号：US14272705

申请日：2014-05-08

Applicant: Kohei Shimbo ,  Naohiro Kamijo ,  Yoichi Kubota

Inventor： Kohei Shimbo ,  Naohiro Kamijo ,  Yoichi Kubota

IPC: G01J3/40 ,  G03G15/00 ,  G01J3/28 ,  G01J3/04 ,  G01J3/18

CPC classification number: G01J3/2823 ,  G01J3/04 ,  G01J3/18 ,  G01J2003/045 ,  G01J2003/2826 ,  G03G15/55 ,  G03G2215/00616

Abstract: A spectral characteristic acquisition device includes a member configured to have a plurality of openings arrayed in a predetermined direction, each of the plurality of openings inclined with respect to the predetermined direction, the plurality of openings being configured to pass light beams from a plurality of positions on an object therethrough, a spectrally dispersing part configured to spectrally disperse the light beams having passed through the plurality of openings in a direction orthogonal to the predetermined direction, and a plurality of one-dimensional image capturing parts provided at a predetermined interval in a plurality of lines and configured to be irradiated with the light beams having been spectrally dispersed by the spectrally dispersing part, a plurality of pixels of the plurality of one-dimensional image capturing parts being arrayed in a direction parallel to the predetermined direction.

公开(公告)号：US20170153143A1

公开(公告)日：2017-06-01

申请号：US15208953

申请日：2016-07-13

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  IMEC VZW

Inventor： Dongho KIM ,  Jeonghwan SONG

IPC: G01J3/18 ,  G02B6/124 ,  G02B5/18 ,  G02B6/293

CPC classification number: G01J3/1895 ,  G01J2003/1847 ,  G02B5/1861 ,  G02B6/02076 ,  G02B6/124 ,  G02B6/29316 ,  G02B6/29328 ,  G02B6/29356 ,  G02B6/29389

Abstract: Provided are a Bragg grating and a spectroscopy device including the same. The Bragg grating is disposed at each of opposite ends of a resonator for reflecting light of a certain wavelength band and includes a core member extending from a waveguide of the resonator in a lengthwise direction of the waveguide; a plurality of first refractive members protruding from the core member and spaced apart from each other along the lengthwise direction; and a second refractive member filling spaces between the first refractive members and having a refractive index different from a refractive index of the first refractive members.

公开(公告)号：US09638635B2

公开(公告)日：2017-05-02

申请号：US14649096

申请日：2013-11-29

Applicant: HORIBA JOBIN YVON SAS

Inventor： Olivier Acher ,  Simon Richard ,  Christian Brach ,  Viviane Millet ,  Sebastien Corde ,  Daphne Heran

IPC: G01J3/447 ,  G01N21/64 ,  G01J3/02 ,  G01J3/18 ,  G02B27/28 ,  G02B5/18

CPC classification number: G01N21/645 ,  G01J3/021 ,  G01J3/0224 ,  G01J3/18 ,  G01J3/447 ,  G01N2201/063 ,  G01N2201/0633 ,  G02B5/1866 ,  G02B27/283

Abstract: A spectrometer (100) for analyzing the spectrum of an upstream light beam (1), includes an entrance slit (101) and collimating elements (110) suitable for generating, from the upstream light beam, a collimated light beam (10), characterized in that it also includes: a polarization-dependent diffraction grating (120) suitable for diffracting, at each wavelength (11, 12) of the spectrum of the upstream light beam, the collimated light beam into a first diffracted light beam (11, 12) and a second diffracted light beam (21, 22); optical recombining elements (130) including a planar optical reflecting surface (130) perpendicular to the grating and suitable for deviating at least the second diffracted light beam; and focussing elements (140) suitable for focussing, at each wavelength, the first diffracted light beam and the second diffracted light beam onto one and the same focussing area (141).

公开(公告)号：US20170115163A1

公开(公告)日：2017-04-27

申请号：US15335315

申请日：2016-10-26

Applicant: Burt J. Beardsley

Inventor： Burt J. Beardsley

IPC: G01J3/02 ,  G02B5/00 ,  G02B27/30 ,  G01N21/71 ,  G02B5/18 ,  G01J3/18 ,  G01J3/28 ,  G01N21/25 ,  G02B17/08 ,  G02B5/04

CPC classification number: G01J3/021 ,  G01J3/0208 ,  G01J3/1809 ,  G01J2003/1208 ,  G01N21/718 ,  G02B5/005 ,  G02B5/04 ,  G02B5/1842 ,  G02B17/0848 ,  G02B27/30

Abstract: A spectrograph that includes a first mirror having flat a mirror reflective surface and positioned to reflect light traversing a prism, a second mirror having a concave-shaped reflective mirror surface and positioned to reflect light received from the first mirror, a third mirror having a convex-shaped reflective mirror surface and positioned to receive light reflected by the second mirror, a fourth mirror having a spheroidal reflective mirror surface and positioned to receive light reflected by the third mirror, and a field lens comprising a concave mirror surface in combination with a convex mirror surface, wherein light received by said field lens from said fourth mirror enters said convex mirror surface, traverses said field lens, and exits from said concave mirror surface. The fifth mirror is positioned such that the second mirror, third mirror, fourth mirror, and fifth mirror share a common vertex axis.