CN110892309A - 广角可变中性密度滤光器 - Google Patents
广角可变中性密度滤光器 Download PDFInfo
- Publication number
- CN110892309A CN110892309A CN201880028385.9A CN201880028385A CN110892309A CN 110892309 A CN110892309 A CN 110892309A CN 201880028385 A CN201880028385 A CN 201880028385A CN 110892309 A CN110892309 A CN 110892309A
- Authority
- CN
- China
- Prior art keywords
- polarizer
- filter
- vnd
- polarizers
- angle
- 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.)
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/281—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for attenuating light intensity, e.g. comprising rotatable polarising elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/205—Neutral density filters
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
- G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Polarising Elements (AREA)
- Blocking Light For Cameras (AREA)
- Optical Filters (AREA)
- Optical Elements Other Than Lenses (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
Description
Claims (26)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201762468803P | 2017-03-08 | 2017-03-08 | |
US62/468,803 | 2017-03-08 | ||
PCT/US2018/021612 WO2018165476A1 (en) | 2017-03-08 | 2018-03-08 | Wide angle variable neutral density filter |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110892309A true CN110892309A (zh) | 2020-03-17 |
CN110892309B CN110892309B (zh) | 2022-11-22 |
Family
ID=63445153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201880028385.9A Active CN110892309B (zh) | 2017-03-08 | 2018-03-08 | 广角可变中性密度滤光器 |
Country Status (6)
Country | Link |
---|---|
US (1) | US11543669B2 (zh) |
EP (2) | EP4227728A1 (zh) |
JP (2) | JP7263643B2 (zh) |
CN (1) | CN110892309B (zh) |
AU (1) | AU2018230767A1 (zh) |
WO (1) | WO2018165476A1 (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111897136A (zh) * | 2020-08-13 | 2020-11-06 | 中国科学院长春光学精密机械与物理研究所 | 一种中红外激光动态连续衰减装置 |
CN113777731A (zh) * | 2021-08-11 | 2021-12-10 | 中国工程物理研究院应用电子学研究所 | 一种共轴反转环型连续变密度衰减器装置及其工作方法 |
WO2023102670A1 (es) * | 2021-12-10 | 2023-06-15 | Pontificia Universidad Catolica De Chile | Calibración de antenas mediante vehículos voladores autónomos |
CN118091811A (zh) * | 2024-04-22 | 2024-05-28 | 衣金光学科技南通有限公司 | 滤光单元和滤光单元的制造方法 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11543669B2 (en) | 2017-03-08 | 2023-01-03 | Meta Platforms Technologies, Llc | Wide angle variable neutral density filter |
AU2018304186A1 (en) | 2017-07-17 | 2020-02-06 | Gary Sharp Innovations, Inc. | Wide-angle compensation of uniaxial retarder stacks |
US11249355B2 (en) | 2018-01-29 | 2022-02-15 | Gary Sharp Innovations, Llc | Color switch for reduced color cross-talk |
US11269123B2 (en) | 2018-01-29 | 2022-03-08 | Gary Sharp Innovations, Llc | Hollow triple-pass optical elements |
EP3759531A4 (en) | 2018-03-02 | 2021-12-15 | Gary Sharp Innovations, LLC | RETARDER STACKING PAIRS FOR POLARIZATION BASE VECTOR TRANSFORMATION |
JP7246879B2 (ja) * | 2018-09-04 | 2023-03-28 | キヤノン株式会社 | 光学フィルターを操作する操作装置、光学機器、および光学機器に接続するためのアダプタ |
KR20210025957A (ko) * | 2019-08-28 | 2021-03-10 | 엘지이노텍 주식회사 | 광학 기기 |
US11156826B2 (en) * | 2019-12-11 | 2021-10-26 | Visera Technologies Company Limited | Optical devices |
CN115685650A (zh) * | 2022-10-24 | 2023-02-03 | 深圳市锐丽珑精密光学有限公司 | 一种滤镜组件 |
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EP3577515B1 (en) | 2023-05-31 |
JP7263643B2 (ja) | 2023-04-25 |
EP3577515A4 (en) | 2021-04-21 |
AU2018230767A1 (en) | 2019-10-03 |
JP2023085269A (ja) | 2023-06-20 |
EP4227728A1 (en) | 2023-08-16 |
US20180259692A1 (en) | 2018-09-13 |
US11543669B2 (en) | 2023-01-03 |
CN110892309B (zh) | 2022-11-22 |
WO2018165476A1 (en) | 2018-09-13 |
EP3577515A1 (en) | 2019-12-11 |
JP2020510885A (ja) | 2020-04-09 |
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