JPS58152611U - zoom lens barrel - Google Patents
zoom lens barrelInfo
- Publication number
- JPS58152611U JPS58152611U JP4988182U JP4988182U JPS58152611U JP S58152611 U JPS58152611 U JP S58152611U JP 4988182 U JP4988182 U JP 4988182U JP 4988182 U JP4988182 U JP 4988182U JP S58152611 U JPS58152611 U JP S58152611U
- Authority
- JP
- Japan
- Prior art keywords
- ring
- optical axis
- axis direction
- lens barrel
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
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丙は本考案の一実施例の断面図であり、第２図イ〜
ハは光軸方向における固定環と距離環との位置ズレ等の
説明図、第３図は第１図の距離環の拡大図である。1 C is a cross-sectional view of one embodiment of the present invention, and FIGS.
C is an explanatory diagram of the positional deviation between the fixed ring and the distance ring in the optical axis direction, and FIG. 3 is an enlarged view of the distance ring in FIG. 1.
Claims (1)
フランジバック調整の際に光軸方向に変゛ 位され
る固定環と、該固定環のまわりにフォーカシングのため
に光軸を中心に回動可能に、ズーミングのために光軸方
向に変位可能に設けられた距“離環とを有するズームレ
ンズ鏡筒において、前記距離環は、外周にねじ山を設け
た第１の環と該ねじ山と螺合するねじ山を内周に設けた
第２の環とを含み、互いに螺合したねじ山を介して一方
の環を他方の環に対して回動させて光軸方向に変位させ
ることにより前記距離環と前記固定環の焦点距離目盛と
の位置関係を調節可能となしたことを特徴とするズーム
レンズ鏡筒。A focal length scale is written on the outer peripheral surface along the optical axis direction,
A fixed ring that is displaced in the optical axis direction during flange back adjustment, and a fixed ring that is rotatable around the optical axis for focusing and movable in the optical axis direction for zooming. In the zoom lens barrel, the distance ring has a first ring provided with a thread on its outer periphery and a second ring provided with a thread on its inner periphery that engages with the thread. and a focal length scale of the distance ring and the fixed ring by rotating one ring relative to the other ring through mutually threaded screw threads and displacing it in the optical axis direction. A zoom lens barrel characterized by adjustable positional relationships.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4988182U JPS58152611U (en) | 1982-04-08 | 1982-04-08 | zoom lens barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4988182U JPS58152611U (en) | 1982-04-08 | 1982-04-08 | zoom lens barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58152611U true JPS58152611U (en) | 1983-10-13 |
Family
ID=30060706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4988182U Pending JPS58152611U (en) | 1982-04-08 | 1982-04-08 | zoom lens barrel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58152611U (en) |
-
1982
- 1982-04-08 JP JP4988182U patent/JPS58152611U/en active Pending
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