JP3913109B2 - 薄膜型ｎｄフィルター - Google Patents

薄膜型ｎｄフィルター Download PDF

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Publication number
JP3913109B2
JP3913109B2 JP2002154690A JP2002154690A JP3913109B2 JP 3913109 B2 JP3913109 B2 JP 3913109B2 JP 2002154690 A JP2002154690 A JP 2002154690A JP 2002154690 A JP2002154690 A JP 2002154690A JP 3913109 B2 JP3913109 B2 JP 3913109B2
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JP
Japan
Prior art keywords
film
filter
thin film
film type
transmittance
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.)
Expired - Fee Related
Application number
JP2002154690A
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English (en)
Japanese (ja)
Other versions
JP2003344612A (ja
JP2003344612A5 (enExample
Inventor
光治 沢村
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
Original Assignee
Canon Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2002154690A priority Critical patent/JP3913109B2/ja
Publication of JP2003344612A publication Critical patent/JP2003344612A/ja
Publication of JP2003344612A5 publication Critical patent/JP2003344612A5/ja
Application granted granted Critical
Publication of JP3913109B2 publication Critical patent/JP3913109B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Optical Elements Other Than Lenses (AREA)
  • Diaphragms For Cameras (AREA)
  • Surface Treatment Of Optical Elements (AREA)
JP2002154690A 2002-05-28 2002-05-28 薄膜型ｎｄフィルター Expired - Fee Related JP3913109B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002154690A JP3913109B2 (ja) 2002-05-28 2002-05-28 薄膜型ｎｄフィルター

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002154690A JP3913109B2 (ja) 2002-05-28 2002-05-28 薄膜型ｎｄフィルター

Publications (3)

Publication Number Publication Date
JP2003344612A JP2003344612A (ja) 2003-12-03
JP2003344612A5 JP2003344612A5 (enExample) 2005-09-15
JP3913109B2 true JP3913109B2 (ja) 2007-05-09

Family

ID=29771425

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002154690A Expired - Fee Related JP3913109B2 (ja) 2002-05-28 2002-05-28 薄膜型ｎｄフィルター

Country Status (1)

Country Link
JP (1) JP3913109B2 (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4563709B2 (ja) * 2004-03-29 2010-10-13 富士通株式会社 フィルタ及び電子装置
JP4981456B2 (ja) 2006-02-03 2012-07-18 キヤノン株式会社 Ｎｄフィルタ
CN102692662B (zh) 2006-08-30 2015-06-24 佳能电子株式会社 光学滤光器以及摄像装置
JP5303242B2 (ja) * 2008-10-28 2013-10-02 日立マクセル株式会社 反射防止フィルム
JP5568923B2 (ja) * 2009-08-25 2014-08-13 株式会社リコー 撮像光学系およびカメラ装置および携帯情報端末装置
JP5849719B2 (ja) * 2012-01-23 2016-02-03 旭硝子株式会社 光吸収体及びこれを用いた撮像装置
JP7093194B2 (ja) * 2018-02-14 2022-06-29 キヤノン電子株式会社 光源角度測定装置及び人工衛星

Also Published As

Publication number Publication date
JP2003344612A (ja) 2003-12-03

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