JPH0433026U - - Google Patents
Info
- Publication number
- JPH0433026U JPH0433026U JP7534590U JP7534590U JPH0433026U JP H0433026 U JPH0433026 U JP H0433026U JP 7534590 U JP7534590 U JP 7534590U JP 7534590 U JP7534590 U JP 7534590U JP H0433026 U JPH0433026 U JP H0433026U
- Authority
- JP
- Japan
- Prior art keywords
- closing mechanism
- barrier opening
- opening
- lens
- drive means
- 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
- 230000004888 barrier function Effects 0.000 claims description 12
- 230000003287 optical effect Effects 0.000 claims 3
Landscapes
- Blocking Light For Cameras (AREA)
Description
第１図は本考案の一実施例におけるズームレン
ズ鏡筒の断面図、第２図はバリア開閉機構の内部
機構を示す部分分解斜視図、である。
１……ズームレンズ鏡筒（レンズ鏡筒）、５…
…ズームモータ（駆動手段）、５ａ……出力ギア
列（駆動手段）、６……ギア（駆動手段）、７…
…ギア枠（駆動手段）、８……移動枠（駆動手段
）、９……第１レンズ群保持枠（前端鏡枠）、１
０……バリア機構（バリア（開閉機構）、１１…
…バリアモータ（電気駆動手段）、１１ａ……電
源入力接点、１２ｅ……電源供給接点。
FIG. 1 is a sectional view of a zoom lens barrel in an embodiment of the present invention, and FIG. 2 is a partially exploded perspective view showing the internal mechanism of a barrier opening/closing mechanism. 1...Zoom lens barrel (lens barrel), 5...
...Zoom motor (driving means), 5a... Output gear train (driving means), 6... Gear (driving means), 7...
... Gear frame (driving means), 8... Moving frame (driving means), 9... First lens group holding frame (front end lens frame), 1
0...Barrier mechanism (barrier (opening/closing mechanism), 11...
...Barrier motor (electric drive means), 11a...Power input contact, 12e...Power supply contact.
Claims (1)
端鏡枠に設けられたバリア開閉機構と、 上記レンズ鏡筒内に設けられ、上記バリア開閉
機構を開閉駆動する電気駆動手段と、 撮影レンズの収納時に上記前端鏡枠を光軸方向
の最後部側に移動させる駆動手段と、 上記バリア開閉機構及び電気駆動手段を保持す
る鏡枠が光軸方向の最後部側に移動された際に上
記電気駆動手段の電源入力接点と接触し、この電
気駆動手段に電源を供給する電源供給接点と、 を具備しており、上記バリア開閉機構が光軸方向
の移動範囲の内の最後部側に移動されている場合
にのみ該バリア開閉機構を駆動することを特徴と
する投影レンズのバリア開閉機構。[Scope of Claim for Utility Model Registration] A barrier opening/closing mechanism provided in the front end frame of the lens barrel that opens and closes the opening of the front end barrel; and a barrier opening/closing mechanism provided in the lens barrel that drives the opening/closing of the barrier opening/closing mechanism. an electric drive means for moving the front end lens frame to the rearmost side in the optical axis direction when the photographic lens is stored; and a drive means for moving the front end lens frame to the rearmost side in the optical axis direction; a power supply contact that contacts the power input contact of the electric drive means to supply power to the electric drive means when the barrier opening/closing mechanism is moved to the side, and the barrier opening/closing mechanism has a movement range in the optical axis direction. A barrier opening/closing mechanism for a projection lens, characterized in that the barrier opening/closing mechanism is driven only when the barrier opening/closing mechanism is moved to the rearmost side of the projection lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7534590U JPH0433026U (en) | 1990-07-16 | 1990-07-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7534590U JPH0433026U (en) | 1990-07-16 | 1990-07-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0433026U true JPH0433026U (en) | 1992-03-18 |
Family
ID=31615845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7534590U Pending JPH0433026U (en) | 1990-07-16 | 1990-07-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0433026U (en) |
-
1990
- 1990-07-16 JP JP7534590U patent/JPH0433026U/ja active Pending
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