JPS6451906U - - Google Patents

Info

Publication number
JPS6451906U
JPS6451906U JP14642887U JP14642887U JPS6451906U JP S6451906 U JPS6451906 U JP S6451906U JP 14642887 U JP14642887 U JP 14642887U JP 14642887 U JP14642887 U JP 14642887U JP S6451906 U JPS6451906 U JP S6451906U
Authority
JP
Japan
Prior art keywords
frame
group lens
lens frame
cam
rear group
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
JP14642887U
Other languages
Japanese (ja)
Other versions
JPH0736336Y2 (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 JP1987146428U priority Critical patent/JPH0736336Y2/en
Publication of JPS6451906U publication Critical patent/JPS6451906U/ja
Application granted granted Critical
Publication of JPH0736336Y2 publication Critical patent/JPH0736336Y2/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 the drawing]

第１図は本考案の一実施例を示すズームレンズ
鏡胴の断面図、第２図は第１図に示すカム枠の展
開図、第３図は後群レンズ枠の展開図である。 １０……固定枠、１２……斜行孔、１８……摺
動路、２４……カム枠、３２……カム孔、３４…
…コイル拡圧ばね、３６……前群レンズ枠、４６
……後群レンズ枠、５０……凹状カム、５２……
凸状カム。 FIG. 1 is a sectional view of a zoom lens barrel showing an embodiment of the present invention, FIG. 2 is a developed view of the cam frame shown in FIG. 1, and FIG. 3 is a developed view of the rear group lens frame. 10...Fixed frame, 12...Diagonal hole, 18...Sliding path, 24...Cam frame, 32...Cam hole, 34...
...Coil expansion spring, 36...Front group lens frame, 46
... Rear group lens frame, 50 ... Concave cam, 52 ...
Convex cam.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 筒状の固定枠内の前後部所に同径またはほぼ同
径の前群レンズ枠と後群レンズ枠とを摺動自在に
内装すると共に、これらレンズ枠には各レンズ枠
に支持させた前群レンズと後群レンズとの間の距
離を変化させるカム機構を設け、上記後群レンズ
枠に設けたピンを上記固定枠に形成した斜行孔を
通して当該固定枠外面に回動自在に装着したカム
枠の直進カム孔に突入させてなり、カム枠の回動
下に後群レンズ枠が回動しながら光軸方向に移動
すると共に、前群レンズ枠が後群レンズ枠にカム
連動して同方向に移動する構成としたことを特徴
とするズームレンズ鏡胴。 A front group lens frame and a rear group lens frame with the same diameter or almost the same diameter are slidably installed at the front and rear parts of the cylindrical fixed frame, and each lens frame has a front lens frame supported by each lens frame. A cam mechanism is provided to change the distance between the group lens and the rear group lens, and a pin provided in the rear group lens frame is rotatably attached to the outer surface of the fixed frame through a diagonal hole formed in the fixed frame. It enters the straight cam hole of the cam frame, and as the cam frame rotates, the rear group lens frame rotates and moves in the optical axis direction, and the front group lens frame moves in conjunction with the rear group lens frame. A zoom lens barrel characterized by being configured to move in the same direction.
JP1987146428U 1987-09-28 1987-09-28 Zoom lens barrel Expired - Lifetime JPH0736336Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987146428U JPH0736336Y2 (en) 1987-09-28 1987-09-28 Zoom lens barrel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987146428U JPH0736336Y2 (en) 1987-09-28 1987-09-28 Zoom lens barrel

Publications (2)

Publication Number Publication Date
JPS6451906U true JPS6451906U (en) 1989-03-30
JPH0736336Y2 JPH0736336Y2 (en) 1995-08-16

Family

ID=31415909

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987146428U Expired - Lifetime JPH0736336Y2 (en) 1987-09-28 1987-09-28 Zoom lens barrel

Country Status (1)

Country Link
JP (1) JPH0736336Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019021702A1 (en) * 2017-07-26 2019-01-31 日本電産コパル株式会社 Imaging device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5770212U (en) * 1980-10-14 1982-04-27
JPS58158614A (en) * 1982-03-15 1983-09-20 Hitachi Ltd Plastic lens structure
JPS60196715A (en) * 1975-08-06 1985-10-05 Canon Inc Zoom lens
JPS62146101U (en) * 1986-03-10 1987-09-16

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60196715A (en) * 1975-08-06 1985-10-05 Canon Inc Zoom lens
JPS5770212U (en) * 1980-10-14 1982-04-27
JPS58158614A (en) * 1982-03-15 1983-09-20 Hitachi Ltd Plastic lens structure
JPS62146101U (en) * 1986-03-10 1987-09-16

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019021702A1 (en) * 2017-07-26 2019-01-31 日本電産コパル株式会社 Imaging device
JP2019028140A (en) * 2017-07-26 2019-02-21 日本電産コパル株式会社 Imaging apparatus

Also Published As

Publication number Publication date
JPH0736336Y2 (en) 1995-08-16

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