JPS6431111A - Automatic focusing device - Google Patents

Automatic focusing device

Info

Publication number
JPS6431111A
JPS6431111A JP18714987A JP18714987A JPS6431111A JP S6431111 A JPS6431111 A JP S6431111A JP 18714987 A JP18714987 A JP 18714987A JP 18714987 A JP18714987 A JP 18714987A JP S6431111 A JPS6431111 A JP S6431111A
Authority
JP
Japan
Prior art keywords
variable magnification
macrophotographing
focusing
output signal
control part
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.)
Pending
Application number
JP18714987A
Other languages
Japanese (ja)
Inventor
Toshiyuki Ii
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP18714987A priority Critical patent/JPS6431111A/en
Publication of JPS6431111A publication Critical patent/JPS6431111A/en
Pending legal-status Critical Current

Links

Landscapes

  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

PURPOSE:To obtain an automatic focusing device which can focus at the time of macrophotographing by switching and connecting a control part from a focus motor side to a zoom motor side in interlocking with a switching means at the time of macrophotographing. CONSTITUTION:When a variable magnification operational member is within a rotating range for variable magnification, the control part 14 is connected to the focus motor 15 by a switching switch 18 and executes focusing by moving a focusing lens group 1 so that an output signal from a solid-state image pickup element 7 becomes a peak value. When the variable magnification operational member is out of the rotating range for variable magnification and within the rotating range for macrophotographing, the control part 14 is connected to the zoom motor 17 by the switching switch 18 and executes focusing by moving a variable magnification lens group 2 so that the output signal becomes the peak value. Thus, the variable magnification group in a photographing lens system can be moved so that the output signal from the solid-state image pickup element becomes the peak value at the time of macrophotographing and automatic focusing can be possible.
JP18714987A 1987-07-27 1987-07-27 Automatic focusing device Pending JPS6431111A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18714987A JPS6431111A (en) 1987-07-27 1987-07-27 Automatic focusing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18714987A JPS6431111A (en) 1987-07-27 1987-07-27 Automatic focusing device

Publications (1)

Publication Number Publication Date
JPS6431111A true JPS6431111A (en) 1989-02-01

Family

ID=16200977

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18714987A Pending JPS6431111A (en) 1987-07-27 1987-07-27 Automatic focusing device

Country Status (1)

Country Link
JP (1) JPS6431111A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7009767B2 (en) 2000-11-10 2006-03-07 Fdk Corporation Polarization separating/synthesizing element and optical device using it

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7009767B2 (en) 2000-11-10 2006-03-07 Fdk Corporation Polarization separating/synthesizing element and optical device using it

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