JPH0444616U - - Google Patents
Info
- Publication number
- JPH0444616U JPH0444616U JP8817990U JP8817990U JPH0444616U JP H0444616 U JPH0444616 U JP H0444616U JP 8817990 U JP8817990 U JP 8817990U JP 8817990 U JP8817990 U JP 8817990U JP H0444616 U JPH0444616 U JP H0444616U
- Authority
- JP
- Japan
- Prior art keywords
- lens frame
- optical axis
- axis direction
- lead screw
- backward
- 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 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Lens Barrels (AREA)
Description
第１図Ａは本考案の実施例の広角撮影状態を示
す側断面図である。第１図Ｂは本考案の実施例の
望遠撮影状態を示す側断面図である。第２図は第
１図に示した実施例に係るピント調節機構の概略
を前方から示す平面図である。第３図は第１図に
示した実施例に係る変倍機構の一部を前方から示
す平面図である。
２３……前群レンズ枠、２４……後群レンズ枠
、３２……前群リードスクリユー、３３……シヤ
フト、３６，４２，５２……鋼球、４１，５１…
…カム溝、４３，５３……板バネ、４５……後群
リードスクリユー。
FIG. 1A is a side sectional view showing a wide-angle photographing state of an embodiment of the present invention. FIG. 1B is a side sectional view showing the telephoto shooting state of the embodiment of the present invention. FIG. 2 is a plan view schematically showing the focus adjustment mechanism according to the embodiment shown in FIG. 1 from the front. FIG. 3 is a plan view showing a part of the variable power mechanism according to the embodiment shown in FIG. 1 from the front. 23... Front group lens frame, 24... Rear group lens frame, 32... Front group lead screw, 33... Shaft, 36, 42, 52... Steel ball, 41, 51...
...Cam groove, 43, 53... Leaf spring, 45... Rear group lead screw.
補正 平２．１０．３０
図面の簡単な説明を次のように補正する。
明細書第１３頁第３行目の「Ａは本考案の実施
例の広角撮影状態」を「は本考案の実施例の広角
側位置及び望遠側位置」と訂正する。明細書第１
３頁第５行目から同頁第６行目の「第１図Ｂは・
・・を示す側断面図である。」を削除する。Amendment October 30, 1992 The brief description of the drawings has been amended as follows. In the third line of page 13 of the specification, "A is the wide-angle photographing state of the embodiment of the present invention" is corrected to "A is the wide-angle position and telephoto side position of the embodiment of the present invention." Specification No. 1
From the 5th line on page 3 to the 6th line on the same page, “Figure 1B is...
It is a side sectional view showing... ” to be deleted.
Claims (1)
枠の近傍に光軸方向に設けられた軸と、この軸を
中心に回動自在に設けられ、螺旋状のカム溝が周
面上に形成された円筒状のリードスクリユーと、
前記レンズ枠に設けられ、球状部材をレンズ枠か
ら離れる方向に付勢してリードスクリユーのカム
溝に球状部材を押しあてる付勢手段とを備え、前
記リードスクリユーを回転させることによりレン
ズ枠が光軸方向に進退されることを特徴とするズ
ームレンズ鏡胴。 A lens frame that moves forward and backward in the optical axis direction, a shaft provided near the lens frame in the optical axis direction, and a spiral cam groove formed on the circumferential surface of the lens frame, which is rotatable around this axis. a cylindrical lead screw,
a biasing means provided on the lens frame for biasing the spherical member in a direction away from the lens frame and pressing the spherical member against the cam groove of the lead screw; A zoom lens barrel characterized in that the lens barrel is moved forward and backward in the optical axis direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8817990U JPH0444616U (en) | 1990-08-22 | 1990-08-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8817990U JPH0444616U (en) | 1990-08-22 | 1990-08-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0444616U true JPH0444616U (en) | 1992-04-15 |
Family
ID=31821186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8817990U Pending JPH0444616U (en) | 1990-08-22 | 1990-08-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0444616U (en) |
-
1990
- 1990-08-22 JP JP8817990U patent/JPH0444616U/ja active Pending
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