JPS6442614A - Lens holding device - Google Patents

Lens holding device

Info

Publication number
JPS6442614A
JPS6442614A JP19812287A JP19812287A JPS6442614A JP S6442614 A JPS6442614 A JP S6442614A JP 19812287 A JP19812287 A JP 19812287A JP 19812287 A JP19812287 A JP 19812287A JP S6442614 A JPS6442614 A JP S6442614A
Authority
JP
Japan
Prior art keywords
outer frame
optical axis
lens barrel
adjusting
adjustment
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
JP19812287A
Other languages
Japanese (ja)
Other versions
JPH0687091B2 (en
Inventor
Masataka Isaki
Takanobu Yabuki
Kimio Tokuda
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 JP19812287A priority Critical patent/JPH0687091B2/en
Publication of JPS6442614A publication Critical patent/JPS6442614A/en
Publication of JPH0687091B2 publication Critical patent/JPH0687091B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Lens Barrels (AREA)

Abstract

PURPOSE:To easily obtain an optimum position of a back-focal distance by driving a gear of a lens barrel fitted to an outer frame by turning an adjusting shaft, and moving the lens barrel in the optical axis direction against the outer frame by a rotation of a screw. CONSTITUTION:To a square hole 34 for adjustment use of an outer frame 30, an adjusting jig having a pinion engaged to a spur gear 28 of split lens barrels 13, 14 is attached. In this state, when the spur gear 28 is driven, the split lens barrels 13, 14 rotate against the outer frame 30, and by an operation of two lines of internal and external screws 33, 27 which are fitted, the split lens barrels 13, 14 move in the direction of an optical axis 12 against the outer frame 30. In such a way, at the time of adjusting a back-focal distance, the moving extent in the optical axis direction of the lens barrel is in direct proportion to an angle of rotation of an adjusting shaft, and also, its direction is constant, therefore, the workability is satisfactory, the adjustment is facilitated, and also, the adjustment accuracy is improved.
JP19812287A 1987-08-10 1987-08-10 Lens holding device Expired - Fee Related JPH0687091B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19812287A JPH0687091B2 (en) 1987-08-10 1987-08-10 Lens holding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19812287A JPH0687091B2 (en) 1987-08-10 1987-08-10 Lens holding device

Publications (2)

Publication Number Publication Date
JPS6442614A true JPS6442614A (en) 1989-02-14
JPH0687091B2 JPH0687091B2 (en) 1994-11-02

Family

ID=16385820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19812287A Expired - Fee Related JPH0687091B2 (en) 1987-08-10 1987-08-10 Lens holding device

Country Status (1)

Country Link
JP (1) JPH0687091B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004212982A (en) * 2003-01-03 2004-07-29 Agilent Technol Inc Camera and lens position setting method
JP2004354519A (en) * 2003-05-27 2004-12-16 Mitsubishi Electric Corp Image pickup apparatus and focusing device for image pickup apparatus
JP2008164893A (en) * 2006-12-28 2008-07-17 Kantatsu Co Ltd Lens extension unit for macrophotography
JP2018205353A (en) * 2017-05-30 2018-12-27 リコーインダストリアルソリューションズ株式会社 Lens barrel and image projection device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004212982A (en) * 2003-01-03 2004-07-29 Agilent Technol Inc Camera and lens position setting method
JP2004354519A (en) * 2003-05-27 2004-12-16 Mitsubishi Electric Corp Image pickup apparatus and focusing device for image pickup apparatus
JP2008164893A (en) * 2006-12-28 2008-07-17 Kantatsu Co Ltd Lens extension unit for macrophotography
JP2018205353A (en) * 2017-05-30 2018-12-27 リコーインダストリアルソリューションズ株式会社 Lens barrel and image projection device

Also Published As

Publication number Publication date
JPH0687091B2 (en) 1994-11-02

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Legal Events

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