JPH0531350B2 - - Google Patents

Info

Publication number
JPH0531350B2
JPH0531350B2 JP1310621A JP31062189A JPH0531350B2 JP H0531350 B2 JPH0531350 B2 JP H0531350B2 JP 1310621 A JP1310621 A JP 1310621A JP 31062189 A JP31062189 A JP 31062189A JP H0531350 B2 JPH0531350 B2 JP H0531350B2
Authority
JP
Japan
Prior art keywords
lens
focusing
harken
helicoid
point
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 - Lifetime
Application number
JP1310621A
Other languages
English (en)
Japanese (ja)
Other versions
JPH02210977A (ja
Inventor
Kentaro Hanma
Kaoru Yanagawa
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1310621A priority Critical patent/JPH02210977A/ja
Publication of JPH02210977A publication Critical patent/JPH02210977A/ja
Publication of JPH0531350B2 publication Critical patent/JPH0531350B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Automatic Focus Adjustment (AREA)
JP1310621A 1989-12-01 1989-12-01 自動焦点合わせ装置 Granted JPH02210977A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1310621A JPH02210977A (ja) 1989-12-01 1989-12-01 自動焦点合わせ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1310621A JPH02210977A (ja) 1989-12-01 1989-12-01 自動焦点合わせ装置

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP12685079A Division JPS5651164A (en) 1979-10-03 1979-10-03 Automatic focusing device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP5023946A Division JPH0773341B2 (ja) 1993-02-12 1993-02-12 自動焦点合わせ装置

Publications (2)

Publication Number Publication Date
JPH02210977A JPH02210977A (ja) 1990-08-22
JPH0531350B2 true JPH0531350B2 (enrdf_load_stackoverflow) 1993-05-12

Family

ID=18007465

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1310621A Granted JPH02210977A (ja) 1989-12-01 1989-12-01 自動焦点合わせ装置

Country Status (1)

Country Link
JP (1) JPH02210977A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0773341B2 (ja) * 1993-02-12 1995-08-02 株式会社日立製作所 自動焦点合わせ装置
CN103415806A (zh) * 2011-03-21 2013-11-27 卡尔斯特里姆保健公司 使用液体透镜自动对焦的方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6233420Y2 (enrdf_load_stackoverflow) * 1979-09-28 1987-08-26

Also Published As

Publication number Publication date
JPH02210977A (ja) 1990-08-22

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