JPS6044011U - zoom lens barrel - Google Patents
zoom lens barrelInfo
- Publication number
- JPS6044011U JPS6044011U JP13717283U JP13717283U JPS6044011U JP S6044011 U JPS6044011 U JP S6044011U JP 13717283 U JP13717283 U JP 13717283U JP 13717283 U JP13717283 U JP 13717283U JP S6044011 U JPS6044011 U JP S6044011U
- Authority
- JP
- Japan
- Prior art keywords
- cam ring
- lens barrel
- lens
- flange portion
- zoom 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
Links
Landscapes
- Lens Barrels (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のズームレンズ鏡筒を例示した縦断面図、
第２図は本考案に係るズームレンズ鏡筒゛の一実施例を
示す縦断面図である。
符号１． ３．４． １０はレンズホルダ、２はレンズ
固定鏡筒、２ａは段差部、６はカム環、６ｃはフランジ
部、７はズーム操作環、１３は前側マスク板、１４は後
側マスク板、Ｌｌは合焦レンズ、Ｌ２は変倍レンズ、Ｌ
３は補正レンズ、Ｌ４は結像レンズである。FIG. 1 is a vertical cross-sectional view illustrating a conventional zoom lens barrel.
FIG. 2 is a longitudinal sectional view showing an embodiment of the zoom lens barrel according to the present invention. Code 1. 3.4. 10 is a lens holder, 2 is a fixed lens barrel, 2a is a stepped portion, 6 is a cam ring, 6c is a flange portion, 7 is a zoom operation ring, 13 is a front mask plate, 14 is a rear mask plate, Ll is a focus Lens, L2 is variable magnification lens, L
3 is a correction lens, and L4 is an imaging lens.
Claims (1)
変位を行うカム環と、該カム環を保持するレンズ固定鏡
筒との位置決め手段として、前記カム環の全長を固定鏡
部の全長よりも稍々短（し、前記カム環の端部にフラン
ジ部を周設し、前記レンズ固定鏡筒に該フランジ部に対
応する長さ寸法の段差部を形成し、該段差部と該段差部
の端面に配置したマスク板との間に前記フランジ部を挟
み込むことにより、前記カム環を光軸方向に保持したこ
とを特徴とするズームレンズ鏡筒。ゝ゛ As a means for positioning the cam ring that displaces the variable magnification lens and the correction lens in the optical axis direction and the fixed lens barrel that holds the cam ring, the total length of the cam ring is slightly longer than the total length of the fixed mirror section. A flange portion is provided around the end of the cam ring, a step portion having a length corresponding to the flange portion is formed on the lens fixed lens barrel, and the step portion and the end face of the step portion are A zoom lens barrel characterized in that the cam ring is held in the optical axis direction by sandwiching the flange portion between the cam ring and a mask plate disposed on the cam ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13717283U JPS6044011U (en) | 1983-09-03 | 1983-09-03 | zoom lens barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13717283U JPS6044011U (en) | 1983-09-03 | 1983-09-03 | zoom lens barrel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6044011U true JPS6044011U (en) | 1985-03-28 |
| JPH0216324Y2 JPH0216324Y2 (en) | 1990-05-07 |
Family
ID=30308191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13717283U Granted JPS6044011U (en) | 1983-09-03 | 1983-09-03 | zoom lens barrel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6044011U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004264570A (en) * | 2003-02-28 | 2004-09-24 | Matsushita Electric Ind Co Ltd | Projector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4825654A (en) * | 1971-08-06 | 1973-04-03 | ||
| JPS4996727A (en) * | 1972-11-13 | 1974-09-12 | ||
| JPS507035U (en) * | 1973-05-19 | 1975-01-24 | ||
| JPS5491322A (en) * | 1977-12-28 | 1979-07-19 | Sankyo Kougaku Kougiyou Kk | Lens moving system using cam trough |
-
1983
- 1983-09-03 JP JP13717283U patent/JPS6044011U/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4825654A (en) * | 1971-08-06 | 1973-04-03 | ||
| JPS4996727A (en) * | 1972-11-13 | 1974-09-12 | ||
| JPS507035U (en) * | 1973-05-19 | 1975-01-24 | ||
| JPS5491322A (en) * | 1977-12-28 | 1979-07-19 | Sankyo Kougaku Kougiyou Kk | Lens moving system using cam trough |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004264570A (en) * | 2003-02-28 | 2004-09-24 | Matsushita Electric Ind Co Ltd | Projector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0216324Y2 (en) | 1990-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS60193536U (en) | Shooting lens selection type camera | |
| JPS6044011U (en) | zoom lens barrel | |
| JPS5933012U (en) | zoom lens barrel | |
| JPS5834466U (en) | Video camera | |
| JPS5977105U (en) | lens barrel | |
| JPS5865013U (en) | zoom monocular | |
| JPS58103005U (en) | zoom lens barrel | |
| JPS58121003U (en) | Focus adjustment lens barrel | |
| JPS60153065U (en) | Video camera viewfinder | |
| JPS6074115U (en) | zoom lens barrel | |
| JPS591006U (en) | lens barrel | |
| JPS6096616U (en) | Lens back adjustment mechanism | |
| JPS6113840U (en) | Video camera | |
| JPS59123815U (en) | zoom lens | |
| JPS58166604U (en) | Internal anti-reflection structure of zoom lens | |
| JPS61111U (en) | macro lens | |
| JPS60140019U (en) | Macro mechanism of zoom lens | |
| JPS59112206U (en) | shooting lens | |
| JPS60150533U (en) | lens shutter camera | |
| JPS6096619U (en) | Camera lens mounting structure | |
| JPS58121004U (en) | Zoom lens barrel for close-up photography | |
| JPS59123808U (en) | zoom lens barrel | |
| JPH0239242U (en) | ||
| JPS6036617U (en) | camera telephoto lens | |
| JPS59114538U (en) | Lens conversion adapter |