JPH02140511U - - Google Patents

Info

Publication number
JPH02140511U
JPH02140511U JP5049889U JP5049889U JPH02140511U JP H02140511 U JPH02140511 U JP H02140511U JP 5049889 U JP5049889 U JP 5049889U JP 5049889 U JP5049889 U JP 5049889U JP H02140511 U JPH02140511 U JP H02140511U
Authority
JP
Japan
Prior art keywords
divided
lens barrel
divided lens
outer frame
lens
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
JP5049889U
Other languages
Japanese (ja)
Other versions
JPH0736330Y2 (en
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 filed Critical
Priority to JP5049889U priority Critical patent/JPH0736330Y2/en
Publication of JPH02140511U publication Critical patent/JPH02140511U/ja
Application granted granted Critical
Publication of JPH0736330Y2 publication Critical patent/JPH0736330Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Lens Barrels (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例におけるレンズ保持
装置の断面図、第２図は同じくＢＦギヤ部の部分
断面図、第３図、第４図は同じく分割鏡胴部の説
明図、第５図は従来のレンズ保持装置の断面図、
第６図は同じく分割鏡胴部の説明図である。 ２，３……分割鏡胴、４，５，６，７，８……
レンズ、９……レンズ保持部、１０……弾性片、
１１……レンズ規制部、１３……ＢＦギヤ、１７
……外枠、１８……雌ネジ、１９……雄ネジ、２
０，２１……ガイド部、２２……コイルバネ、２
４，２５……合わせ当り面。 FIG. 1 is a sectional view of a lens holding device according to an embodiment of the present invention, FIG. 2 is a partial sectional view of the BF gear section, FIGS. 3 and 4 are explanatory views of the divided lens barrel section, The figure is a cross-sectional view of a conventional lens holding device.
FIG. 6 is also an explanatory diagram of the divided lens barrel. 2, 3... divided lens barrel, 4, 5, 6, 7, 8...
Lens, 9... Lens holding part, 10... Elastic piece,
11... Lens regulation section, 13... BF gear, 17
...Outer frame, 18...Female thread, 19...Male thread, 2
0, 21...Guide part, 22...Coil spring, 2
4, 25... Aligned contact surface.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 複数枚のレンズと、該レンズを保持するため、
その内側に設けられた保持溝および位置調整用雄
ネジおよびバツクフオーカスギヤの位置決め手段
を有し、前記レンズの光軸を含む平面で２分割さ
れた分割鏡胴と、該分割鏡胴の外周部に嵌合する
バツクフオーカスギヤと、前記分割鏡胴の雄ネジ
と螺合する雌ネジを有して、前記分割鏡胴を保持
する外枠と、前記分割鏡胴を前記外枠に対して光
軸方向に付勢する付勢手段とを備え、前記分割鏡
胴の互いの合わせ当面をその両端に位置するレン
ズ保持溝の近傍で、且つその内側に設けたことを
特徴とするレンズ保持装置。 To hold multiple lenses and the lenses,
A divided lens barrel that has a holding groove provided inside thereof, a male screw for position adjustment, and a positioning means for a back focus gear, and is divided into two by a plane containing the optical axis of the lens, and an outer periphery of the divided lens barrel. an outer frame that holds the divided lens barrel, the outer frame having a back focus gear that fits into the outer frame, and a female thread that engages with the male screw of the divided lens barrel; and a biasing means for biasing the divided lens barrels in the direction of the optical axis, wherein the mating surfaces of the divided lens barrels are provided near and inside lens retaining grooves located at both ends thereof. Device.
JP5049889U 1989-04-28 1989-04-28 Lens holding device Expired - Lifetime JPH0736330Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5049889U JPH0736330Y2 (en) 1989-04-28 1989-04-28 Lens holding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5049889U JPH0736330Y2 (en) 1989-04-28 1989-04-28 Lens holding device

Publications (2)

Publication Number Publication Date
JPH02140511U true JPH02140511U (en) 1990-11-26
JPH0736330Y2 JPH0736330Y2 (en) 1995-08-16

Family

ID=31569097

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5049889U Expired - Lifetime JPH0736330Y2 (en) 1989-04-28 1989-04-28 Lens holding device

Country Status (1)

Country Link
JP (1) JPH0736330Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05127059A (en) * 1991-10-30 1993-05-25 Asahi Optical Co Ltd Device for adjusting focus of variable focal distance lens for camera

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05127059A (en) * 1991-10-30 1993-05-25 Asahi Optical Co Ltd Device for adjusting focus of variable focal distance lens for camera

Also Published As

Publication number Publication date
JPH0736330Y2 (en) 1995-08-16

Similar Documents

Publication Publication Date Title
JPS63101913U (en)
JPH02140511U (en)
JPH02140512U (en)
JPH0283515U (en)
JPS62113312U (en)
JPS6199815U (en)
JPS63132911U (en)
JPS61116316U (en)
JPH0411505U (en)
JPH0333421U (en)
JPS63120215U (en)
JPS63168416U (en)
JPS626711U (en)
JPS6438611U (en)
JPS632926U (en)
JPH0392614U (en)
JPS6289637U (en)
JPS62188871U (en)
JPH0358623U (en)
JPH02128110U (en)
JPS6430515U (en)
JPH0352707U (en)
JPS62109127U (en)
JPS6384107U (en)
JPS61143128U (en)

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term