JPH0418815U - - Google Patents
Info
- Publication number
- JPH0418815U JPH0418815U JP1990058107U JP5810790U JPH0418815U JP H0418815 U JPH0418815 U JP H0418815U JP 1990058107 U JP1990058107 U JP 1990058107U JP 5810790 U JP5810790 U JP 5810790U JP H0418815 U JPH0418815 U JP H0418815U
- Authority
- JP
- Japan
- Prior art keywords
- helicoid
- lens barrel
- protrusion
- cam ring
- annular member
- 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
Links
Landscapes
- Lens Barrels (AREA)
Description
第１図ないし第３図は本考案によるレンズ鏡筒
のカム環の実施例を示すもので、第１図は斜視図
、第２図は展開図、第３図は第２図の矢視図で
ある。第４図は第１〜３図のカム環を有するレン
ズ鏡筒の縦断面図であつて、上半分はレンズ収納
状態、下半分はレンズ突出状態（テレ状態）を示
している。第５図、第６図は従来のカム環を示す
斜視図と断面図である。
１０……カム環（環状部材）、１０ａ……雄ヘ
リコイド、１０ｂ……雌ヘリコイド、１０ｃ……
位置決め突起（突起）、１１……固定鏡筒、１１
ａ……直進案内溝、１２……ヘリコイド環、１２
ａ……雌ヘリコイド、１３……前群レンズ筒、１
３ａ……雄ヘリコイド、１３ｂ……ブロツク枠、
１４……直進案内板、１５……直進案内環、１６
……シヤツタブロツク、１６ａ……駆動ピン、１
７……ヘリコイド環、１８……前群レンズ枠、１
８ａ……被動ピン、１９……後群レンズ枠、２０
……コード板、２０ａ……位置決め孔、……ヘ
リコイド山の延長線。
1 to 3 show an embodiment of the cam ring of the lens barrel according to the present invention, in which FIG. 1 is a perspective view, FIG. 2 is a developed view, and FIG. It is. FIG. 4 is a longitudinal sectional view of the lens barrel having the cam ring shown in FIGS. 1 to 3, with the upper half showing the lens in the retracted state and the lower half showing the lens in the protruding state (telephoto state). FIGS. 5 and 6 are a perspective view and a sectional view showing a conventional cam ring. 10... Cam ring (annular member), 10a... Male helicoid, 10b... Female helicoid, 10c...
Positioning protrusion (protrusion), 11...Fixed lens barrel, 11
a... Straight guide groove, 12... Helicoid ring, 12
a...Female helicoid, 13...Front group lens barrel, 1
3a...male helicoid, 13b...block frame,
14... Straight guide plate, 15... Straight guide ring, 16
...Shutter block, 16a...Drive pin, 1
7... Helicoid ring, 18... Front group lens frame, 1
8a... Driven pin, 19... Rear group lens frame, 20
...Code plate, 20a...Positioning hole, ...Extension line of helicoid mountain.
Claims (1)
は軸方向位置を異ならせた突起とを形成した環状
部材を有するレンズ鏡筒において、 上記突起を、いずれかのヘリコイド山の延長線
上に設けたことを特徴とするレンズ鏡筒。 (2) 請求項１において、環状部材は、ヘリコイ
ドに沿う回転によつてレンズ群を移動させるカム
環であり、突起は、このカム環の外周に添着する
コード板の位置決め突起であるレンズ鏡筒。 (3) 請求項１において、突起は、スイツチ部材
をオンオフさせるドツグであるレンズ鏡筒。[Claims for Utility Model Registration] (1) In a lens barrel having an annular member having a helicoid and a protrusion at a different axial position from the helicoid on the circumferential surface, A lens barrel characterized by being installed on an extension of the helicoid mountain. (2) In claim 1, the annular member is a cam ring that moves the lens group by rotation along a helicoid, and the protrusion is a lens barrel that is a positioning protrusion for a code plate attached to the outer periphery of the cam ring. . (3) The lens barrel according to claim 1, wherein the protrusion is a dog that turns the switch member on and off.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5810790U JP2535046Y2 (en) | 1990-06-01 | 1990-06-01 | Lens barrel |
| FR9013302A FR2653902B1 (en) | 1989-10-27 | 1990-10-26 | |
| GB9023329A GB2237406B (en) | 1989-10-27 | 1990-10-26 | Zoom lens barrel |
| DE4042658A DE4042658C2 (en) | 1989-10-27 | 1990-10-29 | Varifocal lens barrel |
| DE4042657A DE4042657C2 (en) | 1989-10-27 | 1990-10-29 | Zoom lens barrel |
| DE4042659A DE4042659C2 (en) | 1989-10-27 | 1990-10-29 | Varifocal lens barrel |
| DE4034390A DE4034390C2 (en) | 1989-10-27 | 1990-10-29 | Varifocal lens barrel |
| KR1019930017898A KR970003287B1 (en) | 1989-10-27 | 1993-09-07 | Zoom lens barrel |
| US08/337,235 US5469300A (en) | 1989-10-27 | 1994-11-04 | Zoom lens barrel |
| HK98100500A HK1001571A1 (en) | 1989-10-27 | 1998-01-20 | Zoom lens barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5810790U JP2535046Y2 (en) | 1990-06-01 | 1990-06-01 | Lens barrel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0418815U true JPH0418815U (en) | 1992-02-17 |
| JP2535046Y2 JP2535046Y2 (en) | 1997-05-07 |
Family
ID=31583418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5810790U Expired - Fee Related JP2535046Y2 (en) | 1989-10-27 | 1990-06-01 | Lens barrel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2535046Y2 (en) |
-
1990
- 1990-06-01 JP JP5810790U patent/JP2535046Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2535046Y2 (en) | 1997-05-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |