JP4590074B2 - 光量調節装置、レンズ装置および撮像装置 - Google Patents

光量調節装置、レンズ装置および撮像装置 Download PDF

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Publication number
JP4590074B2
JP4590074B2 JP2000241494A JP2000241494A JP4590074B2 JP 4590074 B2 JP4590074 B2 JP 4590074B2 JP 2000241494 A JP2000241494 A JP 2000241494A JP 2000241494 A JP2000241494 A JP 2000241494A JP 4590074 B2 JP4590074 B2 JP 4590074B2
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Japan
Prior art keywords
light
filter
density region
shielding blade
region
Prior art date
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Expired - Fee Related
Application number
JP2000241494A
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English (en)
Japanese (ja)
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JP2002055374A5 (enExample
JP2002055374A (ja
Inventor
雅彦 都築
琢治 梅津
正衛 宮川
直也 金田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
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Canon Inc
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Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2000241494A priority Critical patent/JP4590074B2/ja
Publication of JP2002055374A publication Critical patent/JP2002055374A/ja
Publication of JP2002055374A5 publication Critical patent/JP2002055374A5/ja
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Publication of JP4590074B2 publication Critical patent/JP4590074B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Blocking Light For Cameras (AREA)
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JP2000241494A 2000-08-09 2000-08-09 光量調節装置、レンズ装置および撮像装置 Expired - Fee Related JP4590074B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000241494A JP4590074B2 (ja) 2000-08-09 2000-08-09 光量調節装置、レンズ装置および撮像装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000241494A JP4590074B2 (ja) 2000-08-09 2000-08-09 光量調節装置、レンズ装置および撮像装置

Publications (3)

Publication Number Publication Date
JP2002055374A JP2002055374A (ja) 2002-02-20
JP2002055374A5 JP2002055374A5 (enExample) 2007-09-06
JP4590074B2 true JP4590074B2 (ja) 2010-12-01

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ID=18732673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000241494A Expired - Fee Related JP4590074B2 (ja) 2000-08-09 2000-08-09 光量調節装置、レンズ装置および撮像装置

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JP (1) JP4590074B2 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7385660B2 (en) 2003-12-08 2008-06-10 Sharp Kabushiki Kaisha Liquid crystal display device for transflector having opening in a first electrode for forming a liquid crystal domain and openings at first and second corners of the domain on a second electrode
JP2005266778A (ja) 2004-02-19 2005-09-29 Sharp Corp 液晶表示装置
JP4510783B2 (ja) 2006-05-23 2010-07-28 キヤノン株式会社 光学機器
JP2011248029A (ja) 2010-05-26 2011-12-08 Canon Inc 光量調節装置および光学機器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6134530A (ja) * 1984-07-26 1986-02-18 Asahi Seimitsu Kk 絞り羽根
JPH0335531U (enExample) * 1989-08-16 1991-04-08
JPH0843878A (ja) * 1994-08-01 1996-02-16 Canon Inc 絞り装置
JP4217325B2 (ja) * 1999-01-21 2009-01-28 キヤノン株式会社 光量調節装置

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JP2002055374A (ja) 2002-02-20

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