JP2007178823A - 光学部材 - Google Patents
光学部材 Download PDFInfo
- Publication number
- JP2007178823A JP2007178823A JP2005378658A JP2005378658A JP2007178823A JP 2007178823 A JP2007178823 A JP 2007178823A JP 2005378658 A JP2005378658 A JP 2005378658A JP 2005378658 A JP2005378658 A JP 2005378658A JP 2007178823 A JP2007178823 A JP 2007178823A
- Authority
- JP
- Japan
- Prior art keywords
- light
- filter
- optical
- edge
- member according
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/02—Diaphragms
-
- 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
- G02B27/0018—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for preventing ghost images
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/005—Diaphragms
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/08—Shutters
- G03B9/36—Sliding rigid plate
- G03B9/40—Double plate
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0221—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having an irregular structure
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Diaphragms For Cameras (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
【解決手段】絞り羽根16の開口縁部16aは絞り羽根17の開口縁部17aと共働して、略菱形の絞り開口部を形成する。開口縁部16aの前後2つの稜線16b、16cに沿って、微小な鋸歯状により、非周期性でその大きさも様々な凹凸部が形成されている。絞り羽根16、17においては、入射した光線が開口縁部16a、17aに当ると、稜線16b、16c、17b、17cに設けられた凹凸部によって様々な方向に反射する。
【選択図】図4
Description
12 絞り機構
13 ローパスフィルタ
14 固体撮像素子
15 支持板
16、17 絞り羽根
21、31、41、51 NDフィルタ
22 絞り開口部
32、52 フィルム基材
33、53 ND膜
Claims (12)
- 撮影素子上に被写体像を形成する撮像光学系内に光学素子を配置した光学部材であって、前記光学素子は開口部を形成する縁部及び前記開口部内に入り込む縁部のうち少なくとも何れか一方を有し、前記縁部の少なくとも稜線に沿って非周期性の凹凸部を形成したことを特徴とする光学部材。
- 前記凹凸部は鋸歯状に様々な大きさの凹凸を設けたことを特徴とする請求項1に記載の光学部材。
- 前記光学素子の縁部の端面に非周期性の凹凸を有する溝を形成し、該溝の方向を前記稜線方向と異なる方向に向けたことを特徴とする請求項1又は2に記載の光学部材。
- 前記光学素子の縁部の端面に非周期性の凹凸を有する溝を形成し、該溝の方向を前記稜線方向と同方向に向けたことを特徴とする請求項1又は2に記載の光学部材。
- 前記凹凸を鋸歯状に様々な大きさで設けたことを特徴とする請求項3又は4に記載の光学部材。
- 前記光学素子は絞り羽根とし、複数枚の絞り羽根を動作させて前記縁部により前記開口部を形成することを特徴とする請求項1〜5の何れか1つの請求項に記載の光学部材。
- 前記光学素子は光学フィルタとし、前記縁部を前記開口部内に挿入することを特徴とする請求項1〜5の何れか1つの請求項に記載の光学部材。
- 前記光学素子は前記縁部により前記開口部を形成する絞り羽根と、前記開口部に入り込む前記縁部を有する光学フィルタとした請求項1に記載の光学部材。
- 前記絞り羽根と前記光学フィルタは独立して作動する請求項8に記載の光学部材。
- 前記光学フィルタは前記絞り羽根の1枚と共に動作する請求項8に記載の光学部材。
- 前記光学フィルタは透明プラスチックフィルムの少なくとも片面に光減衰膜を付したNDフィルタとしたことを特徴とする請求項7〜10の何れか1つの請求項に記載の光学部材。
- 前記光学フィルタは、光透過率が連続的に変化する光減衰特性を有し、前記縁部から離れるにつれ、光透過率を低くしたグラデーションNDフィルタであることを特徴とする請求項7〜10の何れか1つの請求項に記載の光学部材。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005378658A JP4818721B2 (ja) | 2005-12-28 | 2005-12-28 | 光学部材 |
US11/610,732 US7651283B2 (en) | 2005-12-28 | 2006-12-14 | Optical device |
CNB2006101712992A CN100510934C (zh) | 2005-12-28 | 2006-12-28 | 光学设备 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005378658A JP4818721B2 (ja) | 2005-12-28 | 2005-12-28 | 光学部材 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011128165A Division JP5410473B2 (ja) | 2011-06-08 | 2011-06-08 | 光学部材 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007178823A true JP2007178823A (ja) | 2007-07-12 |
JP4818721B2 JP4818721B2 (ja) | 2011-11-16 |
Family
ID=38224538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005378658A Active JP4818721B2 (ja) | 2005-12-28 | 2005-12-28 | 光学部材 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7651283B2 (ja) |
JP (1) | JP4818721B2 (ja) |
CN (1) | CN100510934C (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011150075A (ja) * | 2010-01-20 | 2011-08-04 | Canon Electronics Inc | 光学部材及び該光学部材を用いた光量調節装置及び該光学部材の剪断加工方法 |
US8085335B2 (en) | 2008-01-22 | 2011-12-27 | Sony Corporation | Image pickup apparatus with a fixed aperture stop having an aperture with different, repetitive first and second wave patterns |
WO2013088675A1 (ja) | 2011-12-12 | 2013-06-20 | キヤノン電子株式会社 | 光学フィルタ、光量調節装置およびそれを有する撮像装置 |
JP2013222154A (ja) * | 2012-04-18 | 2013-10-28 | Nisca Corp | 絞り羽根、光量調整装置、光学機器および絞り羽根の製造方法 |
KR101467139B1 (ko) * | 2012-08-03 | 2014-11-28 | 아사히 가라스 가부시키가이샤 | 광학 필터 |
JP2018060144A (ja) * | 2016-10-07 | 2018-04-12 | 日本電産コパル株式会社 | 羽根駆動装置、撮像装置及び光学機器 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009123848A (ja) * | 2007-11-13 | 2009-06-04 | Sharp Corp | 固体撮像装置とその製造方法、および電子機器 |
JP2010204206A (ja) * | 2009-02-27 | 2010-09-16 | Sony Corp | 光量調整装置、レンズ鏡筒、撮像装置、及び撮像装置の制御方法 |
WO2015137148A1 (ja) * | 2014-03-14 | 2015-09-17 | ソニー株式会社 | 撮像装置、アイリス装置、撮像方法、およびプログラム |
KR20160063584A (ko) * | 2014-11-27 | 2016-06-07 | 한국전자통신연구원 | 회절무늬 제거를 위해 엣지 가공된 개구를 갖는 이미지 디텍터의 이미지 검출 방법 |
JP7018143B2 (ja) | 2018-09-05 | 2022-02-09 | 株式会社パイオラックス | 圧力調整バルブ |
EP4034921A4 (en) * | 2019-09-24 | 2023-11-01 | Agilent Technologies, Inc. | OPENING WITH VARIABLE TRANSMISSION |
US10924705B1 (en) | 2019-12-31 | 2021-02-16 | Christie Digital Systems Usa, Inc. | Serrated prism exit aperture for managing projection flare artifacts |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5612629A (en) * | 1979-07-13 | 1981-02-07 | Canon Inc | Blade for exposure control |
JPH05281593A (ja) * | 1992-03-31 | 1993-10-29 | Canon Electron Inc | 光量絞り装置 |
JPH05281590A (ja) * | 1992-04-02 | 1993-10-29 | Canon Inc | 画質の低下を防いだ絞り及び絞りを具えた光学装置 |
JP2002229095A (ja) * | 2001-02-06 | 2002-08-14 | Nidec Copal Corp | 絞り羽根 |
JP2003004916A (ja) * | 2001-06-20 | 2003-01-08 | Dainippon Printing Co Ltd | 表示装置の窓材、その製造方法、及び表示装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1689258A (en) * | 1928-10-30 | seymour | ||
US3013481A (en) * | 1956-09-25 | 1961-12-19 | Agfa Ag | Pneumatic exposure regulating device for photographic cameras |
US3584558A (en) * | 1969-01-31 | 1971-06-15 | Eastman Kodak Co | Device for extending exposure range of a camera |
US3675562A (en) * | 1969-06-28 | 1972-07-11 | Canon Kk | Iris diaphragm for a camera |
US3682075A (en) * | 1970-01-15 | 1972-08-08 | Leo H Profitt | Combination diffusion and vignetting tool |
US4113359A (en) * | 1977-03-16 | 1978-09-12 | Hiroshi Koike | Automatic diaphragm assembly |
JP2592949B2 (ja) | 1989-01-20 | 1997-03-19 | キヤノン電子株式会社 | 絞り装置 |
JPH0455838A (ja) * | 1990-06-25 | 1992-02-24 | Sony Corp | ビデオカメラ |
US5479298A (en) * | 1991-12-20 | 1995-12-26 | Canon Denshi Kabushiki Kaisha | ND filter and aperture device using the same |
JPH0643520A (ja) * | 1992-07-23 | 1994-02-18 | Fuji Photo Optical Co Ltd | 絞り機構 |
US5689746A (en) * | 1993-08-13 | 1997-11-18 | Canon Kabushiki Kaisha | Amount-of-light adjusting device |
JP2000036917A (ja) | 1998-07-17 | 2000-02-02 | Sony Corp | 撮像装置 |
JP3893082B2 (ja) * | 2002-06-03 | 2007-03-14 | 株式会社タムロン | 絞り装置及びそれを組込んだビデオカメラ、ビデオカメラ用レンズ |
-
2005
- 2005-12-28 JP JP2005378658A patent/JP4818721B2/ja active Active
-
2006
- 2006-12-14 US US11/610,732 patent/US7651283B2/en active Active
- 2006-12-28 CN CNB2006101712992A patent/CN100510934C/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5612629A (en) * | 1979-07-13 | 1981-02-07 | Canon Inc | Blade for exposure control |
JPH05281593A (ja) * | 1992-03-31 | 1993-10-29 | Canon Electron Inc | 光量絞り装置 |
JPH05281590A (ja) * | 1992-04-02 | 1993-10-29 | Canon Inc | 画質の低下を防いだ絞り及び絞りを具えた光学装置 |
JP2002229095A (ja) * | 2001-02-06 | 2002-08-14 | Nidec Copal Corp | 絞り羽根 |
JP2003004916A (ja) * | 2001-06-20 | 2003-01-08 | Dainippon Printing Co Ltd | 表示装置の窓材、その製造方法、及び表示装置 |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8085335B2 (en) | 2008-01-22 | 2011-12-27 | Sony Corporation | Image pickup apparatus with a fixed aperture stop having an aperture with different, repetitive first and second wave patterns |
JP2011150075A (ja) * | 2010-01-20 | 2011-08-04 | Canon Electronics Inc | 光学部材及び該光学部材を用いた光量調節装置及び該光学部材の剪断加工方法 |
WO2013088675A1 (ja) | 2011-12-12 | 2013-06-20 | キヤノン電子株式会社 | 光学フィルタ、光量調節装置およびそれを有する撮像装置 |
JPWO2013088675A1 (ja) * | 2011-12-12 | 2015-04-27 | キヤノン電子株式会社 | 光学フィルタ、光量調節装置およびそれを有する撮像装置 |
JP2013222154A (ja) * | 2012-04-18 | 2013-10-28 | Nisca Corp | 絞り羽根、光量調整装置、光学機器および絞り羽根の製造方法 |
KR101467139B1 (ko) * | 2012-08-03 | 2014-11-28 | 아사히 가라스 가부시키가이샤 | 광학 필터 |
JPWO2014021245A1 (ja) * | 2012-08-03 | 2016-07-21 | 旭硝子株式会社 | 光学フィルタ |
US9759847B2 (en) | 2012-08-03 | 2017-09-12 | Asahi Glass Company, Limited | Optical filter |
JP2018092188A (ja) * | 2012-08-03 | 2018-06-14 | 旭硝子株式会社 | 光学フィルタ |
JP2018116285A (ja) * | 2012-08-03 | 2018-07-26 | 旭硝子株式会社 | 光学フィルタ |
JP2018060144A (ja) * | 2016-10-07 | 2018-04-12 | 日本電産コパル株式会社 | 羽根駆動装置、撮像装置及び光学機器 |
Also Published As
Publication number | Publication date |
---|---|
JP4818721B2 (ja) | 2011-11-16 |
US20070154207A1 (en) | 2007-07-05 |
CN100510934C (zh) | 2009-07-08 |
CN101008763A (zh) | 2007-08-01 |
US7651283B2 (en) | 2010-01-26 |
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