公开(公告)号：US10393656B2

公开(公告)日：2019-08-27

申请号：US16089146

申请日：2017-03-23

Applicant: JASCO CORPORATION

Inventor： Noriaki Soga ,  Tetsuji Sunami ,  Tsubasa Asatsuma ,  Hiroshi Sugiyama ,  Jun Koshobu

IPC: G01N21/552 ,  G01N21/3563

Abstract: An ATR optical instrument condensing an infrared light to a sample-side surface of a ATR crystal to measure a total reflection absorption spectrum includes: an incident-side ellipsoidal mirror condensing the infrared light to the sample-side surface at an incident angle equal to or larger than a critical angle θc inside; an exiting-side ellipsoidal mirror condensing a total reflection light from the sample-side surface; dichroic mirrors guiding an illumination light coaxially to the ellipsoidal mirrors; and a ZnS lens condensing a visible light from the sample-side surface to observe a contact state of the sample. The dichroic mirrors are configured to guide the illumination light to the ellipsoidal mirrors such that the illumination light is condensed to the sample-side surface at an angle less that a critical angle θc′ of the visible light. Accordingly, the ATR optical instrument becomes compact, and can visually observe the contact state of the sample surface.

公开(公告)号：US10317283B2

公开(公告)日：2019-06-11

申请号：US16075346

申请日：2017-02-02

Applicant: JASCO CORPORATION

Inventor： Tetsuji Sunami ,  Takashi Shimamura ,  Norio Wakimoto ,  Jun Koshobu

IPC: G01J5/02 ,  G01J3/45 ,  G01N21/35 ,  G01J3/28 ,  G01J3/453 ,  G01N21/31 ,  G01N21/25 ,  G01N21/00 ,  G01J3/02

Abstract: A method for measuring spectrum by Fourier-transforming an interferogram of an infrared interference wave acquired with an interferometer, including a step of over-sampling intensity signals of the interference wave at positions (D1, D2, . . . ) of a movable mirror set on the basis of a wavelength λ1 of a semi-conductor laser, and a step of interpolating intensity signals (I1′, I2′, . . . ) that would be obtained when the interference wave is sampled at positions (D1′, D2′, . . . ) of the movable mirror set on the basis of a wavelength λ0 of a He—Ne laser, by using the over-sampled intensity signals (I1, I2, . . . ), for calculating the spectrum with the interferogram based on the interpolated intensity signals (I1′, I2′, . . . ) and for an efficient use of conventional stored spectrum data which are measured based on the wavelength λ0.

公开(公告)号：US08797533B2

公开(公告)日：2014-08-05

申请号：US13727709

申请日：2012-12-27

Applicant: JASCO Corporation

Inventor： Tetsuji Sunami ,  Keisuke Watanabe ,  Jun Koshobu

IPC: G01J4/00

CPC classification number: G02B27/28 ,  G01J3/447 ,  G01N21/19 ,  G02B1/02 ,  G02B5/04 ,  G02B27/286

Abstract: A depolarizer includes a pair of wedge-shaped plates made of an optically isotropic material, laid one on top of another such that the total thickness is constant and wedge-plate holding means for holding the pair of wedge plates separately. The wedge-plate holding means includes a pressure-applying section for applying pressure to each of the pair of wedge plates in a direction perpendicular to the thickness direction of the pair of wedge plates. The pressure-applying direction for one of the pair of wedge plates and the pressure-applying direction for the other of the pair of wedge plates intersect at an angle of 45 degrees.

Abstract translation: 去极化器包括由光学各向同性材料制成的一对楔形板，其一个放置在另一个的顶部上，使得总厚度恒定，并且楔形板保持装置分别保持该对楔形板。 楔形板保持装置包括压力施加部分，用于在垂直于一对楔形板的厚度方向的方向上对每对楔形板施加压力。 一对楔形板中的一个的压力施加方向和一对楔形板中另一个的压力施加方向以45度的角度相交。

公开(公告)号：US20130169965A1

公开(公告)日：2013-07-04

申请号：US13727709

申请日：2012-12-27

Applicant: JASCO Corporation

Inventor： Tetsuji Sunami ,  Keisuke Watanabe ,  Jun Koshobu

IPC: G02B27/28 ,  G01J3/447

CPC classification number: G02B27/28 ,  G01J3/447 ,  G01N21/19 ,  G02B1/02 ,  G02B5/04 ,  G02B27/286

Abstract: A depolarizer includes a pair of wedge-shaped plates made of an optically isotropic material, laid one on top of another such that the total thickness is constant and wedge-plate holding means for holding the pair of wedge plates separately. The wedge-plate holding means includes a pressure-applying section for applying pressure to each of the pair of wedge plates in a direction perpendicular to the thickness direction of the pair of wedge plates. The pressure-applying direction for one of the pair of wedge plates and the pressure-applying direction for the other of the pair of wedge plates intersect at an angle of 45 degrees.

Abstract translation: 去极化器包括由光学各向同性材料制成的一对楔形板，其一个放置在另一个的顶部上，使得总厚度恒定，并且楔形板保持装置分别保持该对楔形板。 楔形板保持装置包括压力施加部分，用于在垂直于一对楔形板的厚度方向的方向上对每对楔形板施加压力。 一对楔形板中的一个的压力施加方向和一对楔形板中另一个的压力施加方向以45度的角度相交。

公开(公告)号：US08749780B2

公开(公告)日：2014-06-10

申请号：US13851984

申请日：2013-03-28

Applicant: JASCO Corporation

Inventor： Tetsuji Sunami ,  Jun Koshoubu

IPC: G01J3/28 ,  G01J3/447 ,  G01J3/02

CPC classification number: G01J3/447 ,  G01J3/0208 ,  G01J3/0237 ,  G01N21/19

Abstract: A circular dichroism (CD) spectrometer includes an alignment mechanism that automatically adjusts the elements thereof at appropriate positions. The spectrometer has a focusing-lens position-and-orientation adjustment mechanism which adjusts the position and the orientation of the detector-side focusing lens. It also has a detector rotation mechanism which adjusts the orientation of the detector. Firstly, a control PC monitors the CD spectrum of D form of optical enantiomers, and the adjustment mechanism adjusts the focusing lens such that the monitored CD spectrum matches the reference spectrum related to the D form. Next, the control PC moniters CD spectrum of L form of optical enantiomers, and the adjustment mechanism adjusts the focusing lens such that the monitored CD spectrum of the D and L forms become symmetrical. And, the rotation mechanism adjusts the orientation of the detector such that the intensity of the detector signal is maximized.

Abstract translation: 圆形二色性（CD）光谱仪包括在适当位置自动调整元件的对准机构。 光谱仪具有调整检测器侧聚焦透镜的位置和取向的聚焦透镜位置和取向调节机构。 它还具有调节检测器方向的检测器旋转机构。 首先，控制PC监视D型光学对映体的CD光谱，并且调节机构调节聚焦透镜，使得所监视的CD光谱与D形式相关的参考光谱相匹配。 接下来，控制PC监视L型光学对映异构体的CD光谱，并且调节机构调节聚焦透镜，使得D和L形式的所监视的CD光谱变得对称。 并且，旋转机构调节检测器的方向，使得检测器信号的强度最大化。

公开(公告)号：US20130258334A1

公开(公告)日：2013-10-03

申请号：US13851984

申请日：2013-03-28

Applicant: JASCO CORPORATION

Inventor： Tetsuji Sunami ,  Jun Koshoubu

IPC: G01J3/447

CPC classification number: G01J3/447 ,  G01J3/0208 ,  G01J3/0237 ,  G01N21/19

Abstract: A circular dichroism (CD) spectrometer includes an alignment mechanism that automatically adjusts the elements thereof at appropriate positions. The spectrometer has a focusing-lens position-and-orientation adjustment mechanism which adjusts the position and the orientation of the detector-side focusing lens. It also has a detector rotation mechanism which adjusts the orientation of the detector. Firstly, a control PC monitors the CD spectrum of D form of optical enantiomers, and the adjustment mechanism adjusts the focusing lens such that the monitored CD spectrum matches the reference spectrum related to the D form. Next, the control PC moniters CD spectrum of L form of optical enantiomers, and the adjustment mechanism adjusts the focusing lens such that the monitored CD spectrum of the D and L forms become symmetrical. And, the rotation mechanism adjusts the orientation of the detector such that the intensity of the detector signal is maximized.

Abstract translation: 圆形二色性（CD）光谱仪包括在适当位置自动调整元件的对准机构。 光谱仪具有调整检测器侧聚焦透镜的位置和取向的聚焦透镜位置和取向调节机构。 它还具有调节检测器方向的检测器旋转机构。 首先，控制PC监视D型光学对映体的CD光谱，并且调节机构调节聚焦透镜，使得所监视的CD光谱与D形式相关的参考光谱相匹配。 接下来，控制PC监视L型光学对映异构体的CD光谱，并且调节机构调节聚焦透镜，使得D和L形式的所监视的CD光谱变得对称。 并且，旋转机构调节检测器的方向，使得检测器信号的强度最大化。