JPS6425112A - Dynamic type zoom device - Google Patents

Dynamic type zoom device

Info

Publication number
JPS6425112A
JPS6425112A JP18271787A JP18271787A JPS6425112A JP S6425112 A JPS6425112 A JP S6425112A JP 18271787 A JP18271787 A JP 18271787A JP 18271787 A JP18271787 A JP 18271787A JP S6425112 A JPS6425112 A JP S6425112A
Authority
JP
Japan
Prior art keywords
wide
telephoto
photographic lens
lens
angle
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
JP18271787A
Other languages
Japanese (ja)
Other versions
JP2710315B2 (en
Inventor
Yukio Ogawa
Nobuhiro Ago
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 JP62182717A priority Critical patent/JP2710315B2/en
Publication of JPS6425112A publication Critical patent/JPS6425112A/en
Application granted granted Critical
Publication of JP2710315B2 publication Critical patent/JP2710315B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Lens Barrels (AREA)

Abstract

PURPOSE:To shorten the wait time until a photographic lens is positioned at a long or short focus end by moving the photographic lens for zooming so that it stops between the long and short focus ends, and allowing the photographic lens to move directly to the long and short focus ends. CONSTITUTION:When the photographic lens 116 is placed in normal zooming operation, a motor 100 is driven by closing a telephoto zoom switch or wide-angle zoom switch. In such a case, the rotation of the motor 100 stops the lens 116 at an optional position between the telephoto end and wide-angle end from a rack 114 engaging a gear 112. When a photograph is taken at the telephoto or wide-angle end, an operation button 122 is pressed, a shaft 123 moves down and a telephoto mode switch or wide-angle mode switch is turned on associatively. Consequently, the motor 100 is driven. Consequently, the lens 116 moves straight to the telephoto end or wide end in a short time.
JP62182717A 1987-07-22 1987-07-22 Variable magnification device Expired - Fee Related JP2710315B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62182717A JP2710315B2 (en) 1987-07-22 1987-07-22 Variable magnification device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62182717A JP2710315B2 (en) 1987-07-22 1987-07-22 Variable magnification device

Publications (2)

Publication Number Publication Date
JPS6425112A true JPS6425112A (en) 1989-01-27
JP2710315B2 JP2710315B2 (en) 1998-02-10

Family

ID=16123208

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62182717A Expired - Fee Related JP2710315B2 (en) 1987-07-22 1987-07-22 Variable magnification device

Country Status (1)

Country Link
JP (1) JP2710315B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02208640A (en) * 1989-02-08 1990-08-20 Fuji Photo Optical Co Ltd Camera with zoom lens having fast driving means for photographic lens
US4962399A (en) * 1988-02-03 1990-10-09 Asahi Kogaku Kogyo Kabushiki Kaisha Zoom lens driving apparatus
US5162831A (en) * 1986-05-12 1992-11-10 Asahi Kogaku Kogyo Kabushiki Kaisha Zoom lens drive system for camera
US5280317A (en) * 1986-05-12 1994-01-18 Asahi Kogaku Kogyo Kabushiki Kaisha Lens shutter camera including zoom lens drive system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5162831A (en) * 1986-05-12 1992-11-10 Asahi Kogaku Kogyo Kabushiki Kaisha Zoom lens drive system for camera
US5280317A (en) * 1986-05-12 1994-01-18 Asahi Kogaku Kogyo Kabushiki Kaisha Lens shutter camera including zoom lens drive system
US4962399A (en) * 1988-02-03 1990-10-09 Asahi Kogaku Kogyo Kabushiki Kaisha Zoom lens driving apparatus
JPH02208640A (en) * 1989-02-08 1990-08-20 Fuji Photo Optical Co Ltd Camera with zoom lens having fast driving means for photographic lens

Also Published As

Publication number Publication date
JP2710315B2 (en) 1998-02-10

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees