JP4164153B2 - 光量調節装置 - Google Patents

光量調節装置 Download PDF

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Publication number
JP4164153B2
JP4164153B2 JP11991398A JP11991398A JP4164153B2 JP 4164153 B2 JP4164153 B2 JP 4164153B2 JP 11991398 A JP11991398 A JP 11991398A JP 11991398 A JP11991398 A JP 11991398A JP 4164153 B2 JP4164153 B2 JP 4164153B2
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JP
Japan
Prior art keywords
filter
optical system
optical axis
photographing optical
photographing
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
JP11991398A
Other languages
English (en)
Japanese (ja)
Other versions
JPH11295796A (ja
JPH11295796A5 (enrdf_load_stackoverflow
Inventor
忠典 岡田
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
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 JP11991398A priority Critical patent/JP4164153B2/ja
Publication of JPH11295796A publication Critical patent/JPH11295796A/ja
Publication of JPH11295796A5 publication Critical patent/JPH11295796A5/ja
Priority to US11/558,975 priority patent/US7567286B2/en
Application granted granted Critical
Publication of JP4164153B2 publication Critical patent/JP4164153B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Studio Devices (AREA)
  • Exposure Control For Cameras (AREA)
  • Blocking Light For Cameras (AREA)
  • Structure And Mechanism Of Cameras (AREA)
JP11991398A 1998-02-02 1998-04-15 光量調節装置 Expired - Fee Related JP4164153B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP11991398A JP4164153B2 (ja) 1998-04-15 1998-04-15 光量調節装置
US11/558,975 US7567286B2 (en) 1998-02-02 2006-11-13 Image pickup apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11991398A JP4164153B2 (ja) 1998-04-15 1998-04-15 光量調節装置

Publications (3)

Publication Number Publication Date
JPH11295796A JPH11295796A (ja) 1999-10-29
JPH11295796A5 JPH11295796A5 (enrdf_load_stackoverflow) 2005-09-22
JP4164153B2 true JP4164153B2 (ja) 2008-10-08

Family

ID=14773299

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11991398A Expired - Fee Related JP4164153B2 (ja) 1998-02-02 1998-04-15 光量調節装置

Country Status (1)

Country Link
JP (1) JP4164153B2 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH11295796A (ja) 1999-10-29

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