JPH01113209U - - Google Patents
Info
- Publication number
- JPH01113209U JPH01113209U JP729588U JP729588U JPH01113209U JP H01113209 U JPH01113209 U JP H01113209U JP 729588 U JP729588 U JP 729588U JP 729588 U JP729588 U JP 729588U JP H01113209 U JPH01113209 U JP H01113209U
- Authority
- JP
- Japan
- Prior art keywords
- movable ring
- lens
- lens barrel
- zoom
- ring
- 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 1
Landscapes
- Lens Barrels (AREA)
Description
第１図は、本考案の実施例のズームレンズ鏡筒
のレンズ位置補正装置の上半部のみを示す側断面
図、第２図は、上記第１図の平面図、第３図Ａ，
Ｂは、弾性部材の形状を示す正面図および側面図
、第４図は、調整ピン部分を拡大して示した側面
図、第５図は、ズームレンズ鏡筒の一例を模式的
に示す斜視図である。
１…第１移動環、１ａ…第２移動環、２…固定
鏡筒、６…段部（ストツパー）、７…弾性部材、
１１，１１ａ…カム溝、１４，１５…レンズ保持
枠、２３…調整環、２４…調整ピン。
1 is a side sectional view showing only the upper half of the lens position correction device for a zoom lens barrel according to an embodiment of the present invention; FIG. 2 is a plan view of FIG. 1; FIG.
B is a front view and a side view showing the shape of the elastic member, FIG. 4 is a side view showing an enlarged adjustment pin portion, and FIG. 5 is a perspective view schematically showing an example of a zoom lens barrel. It is. DESCRIPTION OF SYMBOLS 1... First moving ring, 1a... Second moving ring, 2... Fixed lens barrel, 6... Step part (stopper), 7... Elastic member,
11, 11a...Cam groove, 14, 15...Lens holding frame, 23...Adjustment ring, 24...Adjustment pin.
Claims (1)
を保持した保持枠を嵌合する固定鏡筒とズーム用
カム溝を有する移動環とから構成されるズームレ
ンズ鏡筒において、 移動環を前群レンズのカム溝を有する第１移動
環と後群レンズのカム溝を有する第２移動環とに
分け、この間に弾性部材を挿入し、上記固定鏡筒
のストツパーを基準として第１移動環および第２
移動環を上記固定鏡筒に取り付けた調整環に設け
たテーパーピンにより微動させるように形成し、
ズームレンズの像点移動の補正を行うようにした
ことを特徴とするズームレンズ鏡筒のレンズ位置
補正装置。[Claim for Utility Model Registration] A zoom consisting of a fixed lens barrel that has a linear guide groove in the optical axis direction and into which a holding frame that holds a lens is fitted, and a movable ring that has a zoom cam groove. In the lens barrel, the movable ring is divided into a first movable ring having a cam groove for the front group lens and a second movable ring having a cam groove for the rear group lens, and an elastic member is inserted between them, and the movable ring is separated from the fixed lens barrel. The first moving ring and the second
The movable ring is formed to be slightly moved by a taper pin provided on an adjustment ring attached to the fixed lens barrel,
A lens position correction device for a zoom lens barrel, characterized in that it corrects movement of an image point of a zoom lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP729588U JPH01113209U (en) | 1988-01-23 | 1988-01-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP729588U JPH01113209U (en) | 1988-01-23 | 1988-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01113209U true JPH01113209U (en) | 1989-07-31 |
Family
ID=31212184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP729588U Pending JPH01113209U (en) | 1988-01-23 | 1988-01-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01113209U (en) |
-
1988
- 1988-01-23 JP JP729588U patent/JPH01113209U/ja active Pending
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