CA2679449A1 - Notch filter system - Google Patents
Notch filter system Download PDFInfo
- Publication number
- CA2679449A1 CA2679449A1 CA002679449A CA2679449A CA2679449A1 CA 2679449 A1 CA2679449 A1 CA 2679449A1 CA 002679449 A CA002679449 A CA 002679449A CA 2679449 A CA2679449 A CA 2679449A CA 2679449 A1 CA2679449 A1 CA 2679449A1
- Authority
- CA
- Canada
- Prior art keywords
- notch
- notch filter
- filter
- light signal
- cascade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 230000003595 spectral effect Effects 0.000 claims abstract description 57
- 238000001914 filtration Methods 0.000 claims abstract description 22
- 230000003287 optical effect Effects 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 239000006089 photosensitive glass Substances 0.000 claims 1
- 239000010409 thin film Substances 0.000 description 9
- 239000011521 glass Substances 0.000 description 8
- 238000001069 Raman spectroscopy Methods 0.000 description 5
- 230000002238 attenuated effect Effects 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 4
- 108010010803 Gelatin Proteins 0.000 description 3
- 229920000159 gelatin Polymers 0.000 description 3
- 239000008273 gelatin Substances 0.000 description 3
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- 235000011852 gelatine desserts Nutrition 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 238000001506 fluorescence spectroscopy Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 241000969905 Irdex Species 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000000427 thin-film deposition Methods 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/32—Holograms used as optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/203—Filters having holographic or diffractive elements
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/0005—Adaptation of holography to specific applications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
- G03H1/024—Hologram nature or properties
- G03H1/0248—Volume holograms
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/26—Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique
- G03H2001/2605—Arrangement of the sub-holograms, e.g. partial overlapping
- G03H2001/261—Arrangement of the sub-holograms, e.g. partial overlapping in optical contact
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectrometry And Color Measurement (AREA)
- Optical Elements Other Than Lenses (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Holo Graphy (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US90558707P | 2007-03-08 | 2007-03-08 | |
| US60/905,587 | 2007-03-08 | ||
| PCT/CA2008/000463 WO2008106800A1 (en) | 2007-03-08 | 2008-03-07 | Notch filter system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2679449A1 true CA2679449A1 (en) | 2008-09-12 |
Family
ID=39737754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002679449A Abandoned CA2679449A1 (en) | 2007-03-08 | 2008-03-07 | Notch filter system |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20100110515A1 (enExample) |
| JP (1) | JP2010521699A (enExample) |
| CA (1) | CA2679449A1 (enExample) |
| WO (1) | WO2008106800A1 (enExample) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2951538B1 (fr) * | 2009-10-16 | 2011-12-16 | Horiba Jobin Yvon Sas | Appareil de mesure spectrometrique de la diffusion inelastique de haute performance dans le domaine des basses frequences |
| CN102374901A (zh) * | 2011-09-22 | 2012-03-14 | 中国科学院半导体研究所 | 一种用于测量低波数拉曼信号的单光栅拉曼光谱测试系统 |
| WO2013086516A1 (en) | 2011-12-09 | 2013-06-13 | Regents Of The University Of Minnesota | Hyperspectral imaging for early detection of alzheimer's disease |
| CN113520301B (zh) | 2016-03-10 | 2024-11-26 | 明尼苏达大学董事会 | 空间-光谱成像方法和视网膜成像设备 |
| WO2019175545A1 (en) * | 2018-03-16 | 2019-09-19 | Bae Systems Plc | Optical filter |
| US11927781B2 (en) | 2018-03-16 | 2024-03-12 | Bae Systems Plc | Optical device |
| GB2571989B (en) * | 2018-03-16 | 2022-09-14 | Bae Systems Plc | Optical device |
| EP3540480A1 (en) * | 2018-03-16 | 2019-09-18 | BAE SYSTEMS plc | Optical filter |
| EP3540481A1 (en) * | 2018-03-16 | 2019-09-18 | BAE SYSTEMS plc | Optical device |
| WO2020051061A1 (en) * | 2018-09-04 | 2020-03-12 | Sigray, Inc. | System and method for x-ray fluorescence with filtering |
| US20230053187A1 (en) * | 2020-01-30 | 2023-02-16 | Outsight | Multispectral active remote sensor |
| KR102316504B1 (ko) * | 2020-03-31 | 2021-10-22 | 서울대학교산학협력단 | 홀로그래픽 디스플레이를 위한 노이즈 제거 방법 및 그 장치 |
| WO2023085467A1 (ko) * | 2021-11-12 | 2023-05-19 | 서울대학교산학협력단 | 홀로그래픽 디스플레이를 위한 노이즈 제거 방법 및 그 장치 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5179630A (en) * | 1988-10-06 | 1993-01-12 | Kaiser Optical Systems, Inc. | Laser protection window with tilted modulated index of refraction filter elements |
| JP4242974B2 (ja) * | 1999-08-10 | 2009-03-25 | 日本分光株式会社 | ホログラフィックノッチフィルタ製造方法 |
| US7116848B2 (en) * | 2000-04-07 | 2006-10-03 | Exfo Electro-Optical Engineering Inc. | Optical spectrum analyzer using a diffraction grating and multi-pass optics |
| JP2002328235A (ja) * | 2001-04-27 | 2002-11-15 | Jasco Corp | マルチ構造ホログラフィックノッチフィルタ及びその製造方法 |
| US20030190121A1 (en) * | 2002-04-09 | 2003-10-09 | Fang Luo | Athermal tunable filter with wavelength and intensity responses based on volume phase hologram |
| JP4514448B2 (ja) * | 2002-12-26 | 2010-07-28 | 京セラ株式会社 | 体積型位相格子とその製造方法及びそれを用いた光モジュール及び半導体レーザモジュール |
| GB0620141D0 (en) * | 2006-10-11 | 2006-11-22 | Renishaw Plc | Spectroscopy system |
-
2008
- 2008-03-07 CA CA002679449A patent/CA2679449A1/en not_active Abandoned
- 2008-03-07 US US12/529,857 patent/US20100110515A1/en not_active Abandoned
- 2008-03-07 JP JP2009552037A patent/JP2010521699A/ja active Pending
- 2008-03-07 WO PCT/CA2008/000463 patent/WO2008106800A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010521699A (ja) | 2010-06-24 |
| US20100110515A1 (en) | 2010-05-06 |
| WO2008106800A1 (en) | 2008-09-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |
Effective date: 20140307 |