JPS5350730A - Presettable zooming speed controller - Google Patents

Presettable zooming speed controller

Info

Publication number
JPS5350730A
JPS5350730A JP12527076A JP12527076A JPS5350730A JP S5350730 A JPS5350730 A JP S5350730A JP 12527076 A JP12527076 A JP 12527076A JP 12527076 A JP12527076 A JP 12527076A JP S5350730 A JPS5350730 A JP S5350730A
Authority
JP
Japan
Prior art keywords
speed controller
presettable
zooming speed
zooming
follow
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.)
Granted
Application number
JP12527076A
Other languages
Japanese (ja)
Other versions
JPS606483B2 (en
Inventor
Kikuo Yamamoto
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.)
Fujinon Corp
Original Assignee
Fuji Photo Optical 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 Fuji Photo Optical Co Ltd filed Critical Fuji Photo Optical Co Ltd
Priority to JP12527076A priority Critical patent/JPS606483B2/en
Publication of JPS5350730A publication Critical patent/JPS5350730A/en
Publication of JPS606483B2 publication Critical patent/JPS606483B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To achieve the improvement in the follow-up characteristics of a zooming speed controller by providing a bridge circuit comprising connecting FET constant current circuits mutually in opposite directions to a zooming control circuit.
COPYRIGHT: (C)1978,JPO&Japio
JP12527076A 1976-10-19 1976-10-19 Presetable zoom speed control Expired JPS606483B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12527076A JPS606483B2 (en) 1976-10-19 1976-10-19 Presetable zoom speed control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12527076A JPS606483B2 (en) 1976-10-19 1976-10-19 Presetable zoom speed control

Publications (2)

Publication Number Publication Date
JPS5350730A true JPS5350730A (en) 1978-05-09
JPS606483B2 JPS606483B2 (en) 1985-02-19

Family

ID=14905915

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12527076A Expired JPS606483B2 (en) 1976-10-19 1976-10-19 Presetable zoom speed control

Country Status (1)

Country Link
JP (1) JPS606483B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001124977A (en) * 1999-10-28 2001-05-11 Canon Inc Optical device, optical device drive unit, and camera system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61149577U (en) * 1985-03-08 1986-09-16

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001124977A (en) * 1999-10-28 2001-05-11 Canon Inc Optical device, optical device drive unit, and camera system

Also Published As

Publication number Publication date
JPS606483B2 (en) 1985-02-19

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