WO2014175541A1 - 광대역 필터를 이용하여 빛의 파장을 선택할 수 있는 단색화 장치 - Google Patents
광대역 필터를 이용하여 빛의 파장을 선택할 수 있는 단색화 장치 Download PDFInfo
- Publication number
- WO2014175541A1 WO2014175541A1 PCT/KR2014/001195 KR2014001195W WO2014175541A1 WO 2014175541 A1 WO2014175541 A1 WO 2014175541A1 KR 2014001195 W KR2014001195 W KR 2014001195W WO 2014175541 A1 WO2014175541 A1 WO 2014175541A1
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- WIPO (PCT)
- Prior art keywords
- light
- broadband filter
- filter
- wavelength
- broadband
- Prior art date
Links
- 238000000034 method Methods 0.000 claims description 10
- 230000001419 dependent effect Effects 0.000 claims 1
- 238000003384 imaging method Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000023077 detection of light stimulus Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/04—Optical or mechanical part supplementary adjustable parts
- G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
- G01J1/0414—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using plane or convex mirrors, parallel phase plates, or plane beam-splitters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/04—Optical or mechanical part supplementary adjustable parts
- G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
- G01J1/0448—Adjustable, e.g. focussing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/12—Generating the spectrum; Monochromators
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/12—Generating the spectrum; Monochromators
- G01J2003/1226—Interference filters
- G01J2003/1243—Pivoting IF or other position variation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/12—Generating the spectrum; Monochromators
- G01J2003/1226—Interference filters
- G01J2003/1247—Tuning
Definitions
- the present invention relates to a monochromator using a broadband filter, and more particularly, to a monochromator for selectively monochromating light by arbitrarily adjusting the central wavelength and wavelength width of light by specially disposing a wide band filter capable of wavelength selection. will be.
- a monochromator using a diffraction grating or a prism as a spectroscopic element is known.
- Conventional monochromators using diffraction gratings have been used for the purpose of providing light sources with selected wavelengths and for the selective detection of light to be detected from a target as a detector.
- a monochromator as an application for providing a light source is used to select a wavelength of a light source to be analyzed from a light source including several bands, for example, in a spectrophotometer.
- Korean Unexamined Patent Publication No. 2008-0015759 discloses a monochromator system having a diffraction grating for separating light to have a specific wavelength range and resolution.
- the monochromator 100 of FIG. 1 includes a diffraction grating 110, a slit 120 for restricting passage of light, and planar or curved mirrors 130, 140, 150 for adjusting the path of light.
- a diffraction grating 110 when light having a wide wavelength band is provided to the monochromator, the propagation path is changed by the curved mirror 130 to be incident on the diffraction grating 110.
- the diffraction grating 110 separates the wavelength of incident light, and the slit 120 adjusts the position or width of the slit to selectively pass the desired wavelength band among the separated wavelength bands.
- Light passing through the slit 120 passes through curved or planar mirrors 140, 150, and light having a specific wavelength is output from the monochromator.
- the present invention solves the problems of the monochromator using the diffraction grating described above, and an object of the present invention is to arrange one or more broadband filters having different wavelength bands of light passing therethrough without using the diffraction grating in series.
- the present invention provides a technique that has an increased light efficiency and makes it possible to selectively obtain a desired center wavelength and wavelength width for incident light.
- a monochromator for selecting light of a specific wavelength is arranged to have a first angle of rotation with respect to the direction of incidence of the light, thereby providing A first wideband filter for passing one wavelength band, a second wideband filter disposed to have a second angle of rotation with respect to the direction of incidence of light, and a second wideband filter for passing a second wavelength band with respect to light incident through the first wideband filter, and Path compensation means for adjusting a path of light passing through the second broadband filter to be equal to a path of light incident on the first broadband filter.
- the first broadband filter, the second broadband filter and the path compensation means may be arranged in series with respect to the direction of incidence of the light.
- a predetermined wavelength band and / or predetermined wavelength of light passing through the first and second broadband filters by adjusting the first and second rotation angles of the first and second broadband filters. You can also choose the center wavelength.
- it may further include one or more broadband filters whose wavelength band of light is passed depending on the rotational angle disposed with respect to the direction of incidence of the light.
- Monochrome apparatus for selecting light of a specific wavelength compared to the monochromator using a diffraction grating can significantly increase the efficiency of the light output from the monochromator for incident light, the scanning method It can be flexibly utilized for various imaging methods in addition to the imaging.
- the monochromator according to the embodiments of the present invention comprises a first wideband filter and a second wideband filter having a wavelength band of light passing according to an angle, and the first rotation angle and the second wideband of the first wideband filter.
- the second rotation angle of the filter respectively, light having a desired center wavelength and wavelength band can be output. This has the advantage that the desired wavelength can be selected by adjusting only the rotation angles of the filters without replacing the broadband filter, thereby providing convenience of use and reducing the installation cost of a relatively expensive optical system.
- 1 shows a monochromator with a conventional diffraction grating.
- FIG. 2 shows an exemplary wideband filter used in the present invention.
- 3A to 3D show exemplary results of transmitted wavelength bands according to the rotation angle of the broadband filter of FIG. 2.
- FIG. 4 illustrates a monochrome device according to an embodiment of the present invention.
- 5A illustrates the process of selecting a particular wavelength in accordance with one embodiment of the present invention.
- 5B illustrates the principle of selecting a particular wavelength using two broadband filters in accordance with one embodiment of the present invention.
- the broadband filter used in the present invention may be composed of a rotation control section including a filter section for selectively transmitting incident light and a rotation axis for supporting the broadband filter and adjusting the rotation of the filter.
- the axis of rotation is rotatable 360 ° and can be rotated by power, such as a manual or electric motor.
- FIG. 3A to 3D show exemplary results of transmitted wavelength bands according to the rotation angle of the broadband filter of FIG. 2.
- FIG. 3 (a) shows a case where the rotation angle of the broadband filter is arranged at 90 ° and light is transmitted, and as a result, it is shown in FIG. Referring to FIG. 3 (b), it can be seen that only light having a constant width bandwidth is transmitted while the center wavelength is 628 nm when the rotation angle of the broadband filter is disposed at 90 °.
- FIG. 3 (c) is a case where the rotation angle of the broadband filter is set at 30 ° and light is transmitted. As shown in FIG. 3 (d), only the light having a constant width and the center wavelength is 562 nm. It can be seen that it is transmitted.
- the broadband filter used in the present invention may be a band pass filter whose center wavelength varies depending on the rotation angle.
- a band pass filter may be used in which both the center wavelength and the bandwidth vary depending on the rotation angle.
- Monochrome device 400 of the present invention includes a first wideband filter 410, a second wideband filter 420 and a compensator 430.
- the first broadband filter 410 is arranged to have a first rotational angle ⁇ 1 with respect to the direction of incidence of light.
- the incident light L is the light L1 having only a wavelength in a predetermined bandwidth according to a first angle of rotation ( ⁇ 1) while passing through the first wideband filter 410.
- the second broadband filter 420 is arranged to have a second angle of rotation ⁇ 2 with respect to the direction of incidence of light.
- the second broadband filter 220 passes only the wavelength portion corresponding to the predetermined bandwidth according to the second rotation angle ⁇ 2 in the incident light L1. Accordingly, the incident light L passes through the first wideband filter and the second wideband filter in order, thereby becoming light L2 having only a common wavelength band among the passbands of the first wideband filter and the second wideband filter as the wavelength.
- the monochromator 400 of the present invention includes a compensator 430 such that the path change of the light generated by passing through the first and second broadband filters is equal to the path the light has before passing through the broadband filters. Compensate for the path of light.
- the light L3 passing through the compensator 430 has only a wavelength band passed in common in the first and second wideband filters, while at the same time an optical path such that the incident light L into the monochromator does not pass through the wideband filters. It can have
- the first wideband filter, the second wideband filter and the compensator may be arranged in series, and one or more wideband filters may be added.
- the first wideband filter, the second wideband filter and the compensator are connected to a control device such as a computer including a memory and a processor, so that the rotation angle and the optical angle of the wideband filters to derive the desired wavelength band in the processor. Parameters of the compensator for calibrating the path can be calculated and the calculated value can be stored in memory.
- the monochromator is provided with light L having a broad band of wavelengths.
- the first wideband filter operates as a first band pass filter having a center wavelength ⁇ c1 and a bandwidth d 1 when disposed to have a rotation angle ⁇ 1 .
- the light L1 has a center wavelength ⁇ c1 and a bandwidth d 1 as a result of the light L passing through the first broadband filter having the rotation angle ⁇ 1 .
- the second wideband filter acts as a second bandpass filter having a center wavelength ⁇ c2 and a bandwidth d 2 when arranged to have a rotation angle ⁇ 2 .
- FIG. 5B shows the principle of selecting a specific wavelength through a wideband filter having a center wavelength ⁇ c1 and a bandwidth d 1 and a wideband filter having a center wavelength ⁇ c2 and a bandwidth d 2 .
- light L2 has a center wavelength ⁇ c and bandwidth d as a result, where ⁇ c and d are derived by the following equations (1) and (2), respectively.
- the monochromator of the present invention can freely select a desired wavelength by changing the center wavelength and bandwidth of the wavelength band passed by adjusting the rotation angle of the broadband filters according to the above principle.
- a monochromatic device is realized by arranging one or more broadband filters having different wavelength bands of light passing through without using a diffraction grating, thereby having an increased light efficiency and having a desired center wavelength and It is possible to selectively obtain the wavelength width.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optics & Photonics (AREA)
- Spectrometry And Color Measurement (AREA)
- Optical Filters (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
Description
Claims (6)
- 특정 파장의 광을 선택하기 위한 단색화 장치로서,광의 입사 방향에 대해 제 1 회전 각도를 갖도록 배치되어, 입사하는 광에 대하여 제 1 파장 대역을 통과시키는 제 1 광대역 필터;광의 입사 방향에 대해 제 2 회전 각도를 갖도록 배치되어, 상기 제 1 광대역 필터를 통과한 광에 대하여 제 2 파장 대역을 통과시키는 제 2 광대역 필터; 및상기 제 2 광대역 필터를 통과한 광의 경로를 상기 제 1 광대역 필터에 입사하는 광의 경로와 같아지도록 조정하는 경로 보상 수단을 포함하는, 단색화 장치.
- 제 1 항에 있어서,상기 제 1 광대역 필터, 상기 제 2 광대역 필터 및 상기 경로 보상 수단은 광의 입사 방향에 대해 직렬적으로 배치되는 것을 특징으로 하는, 단색화 장치.
- 제 1 항에 있어서,상기 제 1 광대역 필터의 상기 제 1 회전 각도 및 상기 제 2 광대역 필터의 상기 제 2 회전 각도를 조정함으로써 상기 제 1 광대역 필터 및 상기 제 2 광대역 필터를 통과한 광의 소정의 파장 대역 및 소정의 중심 파장 중 적어도 하나를 선택하는 것을 특징으로 하는, 단색화 장치.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서,광의 입사 방향에 대해 배치된 회전 각도에 따라 통과되는 광의 파장 대역이 달라지는 하나 이상의 광대역 필터를 더 포함하는, 단색화 장치.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서,상기 특정 파장의 광을 선택하기 위한 상기 제 1 파장 대역 및 상기 제 2 파장 대역을 결정하고, 상기 제 1 광대역 필터의 상기 제 1 회전 각도 및 상기 제 2 광대역 필터의 상기 제 2 회전 각도를 조정하도록 구성된 제어 수단을 더 포함하는, 단색화 장치.
- 제 5 항에 있어서,상기 제 1 광대역 필터의 상기 제 1 회전 각도 및 상기 제 2 광대역 필터의 상기 제 2 회전 각도의 조정은 전동기 모터에 의하는, 단색화 장치.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/787,141 US20160097887A1 (en) | 2013-04-25 | 2014-02-13 | Monochromator using optical filters to select wavelength of light |
EP14789095.8A EP2990841A4 (en) | 2013-04-25 | 2014-02-13 | Monochromatization device capable of selecting wavelength of light by using broadband filter |
JP2016510602A JP2016517018A (ja) | 2013-04-25 | 2014-02-13 | 広帯域フィルタを用いて光の波長を選択することができる単色化装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020130045889A KR101524556B1 (ko) | 2013-04-25 | 2013-04-25 | 광대역 필터를 이용하여 빛의 파장을 선택할 수 있는 단색화 장치 |
KR10-2013-0045889 | 2013-04-25 |
Publications (1)
Publication Number | Publication Date |
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WO2014175541A1 true WO2014175541A1 (ko) | 2014-10-30 |
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PCT/KR2014/001195 WO2014175541A1 (ko) | 2013-04-25 | 2014-02-13 | 광대역 필터를 이용하여 빛의 파장을 선택할 수 있는 단색화 장치 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20160097887A1 (ko) |
EP (1) | EP2990841A4 (ko) |
JP (2) | JP2016517018A (ko) |
KR (1) | KR101524556B1 (ko) |
WO (1) | WO2014175541A1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018535414A (ja) * | 2016-01-20 | 2018-11-29 | アイアイエスエム インコーポレイテッド | 広帯域フィルタを用いた分光光度測定方法および装置 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR102690821B1 (ko) | 2024-02-23 | 2024-08-05 | 주식회사 그레이트챌린지 | 분광을 이용하여 원하는 빛의 파장을 선택할 수 있는 이미지 센서의 적정 위치 확인용 조절 시스템 |
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JP2002214511A (ja) * | 2001-01-22 | 2002-07-31 | Fuji Photo Film Co Ltd | 折返し光学系、折返し光学系の組立て方法、波長安定化レーザ及び光波長変換モジュール |
JP2002319176A (ja) * | 2001-04-20 | 2002-10-31 | Sony Corp | 光学ピックアップ装置 |
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KR20080010922A (ko) * | 2006-07-28 | 2008-01-31 | 삼성전기주식회사 | 동일한 광 방출 위치를 갖는 레이저 장치 |
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KR20080015759A (ko) | 2006-08-16 | 2008-02-20 | 웨이퍼마스터스, 인코퍼레이티드 | 분광 시스템 및 방법 |
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US8294990B2 (en) * | 2009-09-04 | 2012-10-23 | Raytheon Canada Limited | Method and apparatus for optical filtering with two passbands |
JP2012079885A (ja) * | 2010-09-30 | 2012-04-19 | Panasonic Electric Works Sunx Co Ltd | レーザ光出射装置およびレーザ光の中心波長および波長帯域幅の変更方法 |
-
2013
- 2013-04-25 KR KR1020130045889A patent/KR101524556B1/ko active IP Right Grant
-
2014
- 2014-02-13 WO PCT/KR2014/001195 patent/WO2014175541A1/ko active Application Filing
- 2014-02-13 EP EP14789095.8A patent/EP2990841A4/en not_active Withdrawn
- 2014-02-13 JP JP2016510602A patent/JP2016517018A/ja active Pending
- 2014-02-13 US US14/787,141 patent/US20160097887A1/en not_active Abandoned
-
2017
- 2017-08-24 JP JP2017161356A patent/JP2017219550A/ja active Pending
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JP2002214511A (ja) * | 2001-01-22 | 2002-07-31 | Fuji Photo Film Co Ltd | 折返し光学系、折返し光学系の組立て方法、波長安定化レーザ及び光波長変換モジュール |
JP2002319176A (ja) * | 2001-04-20 | 2002-10-31 | Sony Corp | 光学ピックアップ装置 |
KR20060135788A (ko) * | 2004-02-06 | 2006-12-29 | 포토-피직스 라보레토리 인코포레이티드 | 파장변환장치 |
KR20080010922A (ko) * | 2006-07-28 | 2008-01-31 | 삼성전기주식회사 | 동일한 광 방출 위치를 갖는 레이저 장치 |
KR20080013635A (ko) * | 2006-08-09 | 2008-02-13 | 삼성전기주식회사 | 파장변환 레이저 장치 |
KR20080015759A (ko) | 2006-08-16 | 2008-02-20 | 웨이퍼마스터스, 인코퍼레이티드 | 분광 시스템 및 방법 |
Non-Patent Citations (1)
Title |
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See also references of EP2990841A4 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018535414A (ja) * | 2016-01-20 | 2018-11-29 | アイアイエスエム インコーポレイテッド | 広帯域フィルタを用いた分光光度測定方法および装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2017219550A (ja) | 2017-12-14 |
JP2016517018A (ja) | 2016-06-09 |
EP2990841A4 (en) | 2017-01-18 |
US20160097887A1 (en) | 2016-04-07 |
EP2990841A1 (en) | 2016-03-02 |
KR101524556B1 (ko) | 2015-05-29 |
KR20140127504A (ko) | 2014-11-04 |
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