JPH03110409U - - Google Patents
Info
- Publication number
- JPH03110409U JPH03110409U JP1873990U JP1873990U JPH03110409U JP H03110409 U JPH03110409 U JP H03110409U JP 1873990 U JP1873990 U JP 1873990U JP 1873990 U JP1873990 U JP 1873990U JP H03110409 U JPH03110409 U JP H03110409U
- Authority
- JP
- Japan
- Prior art keywords
- intermediate position
- motor
- regulating member
- driven
- infinity
- 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
- 230000001105 regulatory effect Effects 0.000 claims description 9
Landscapes
- Focusing (AREA)
- Lens Barrels (AREA)
Description
第１図は本考案に係る一実施例のレンズ鏡筒の
縦断面図、第２図及び第３図はそれぞれその動作
を説明する要部展開図、第４図は本考案の他の実
施例を示す要部展開図、第５図は本考案の更に他
の実施例を示す要部展開図である。
１……固定筒、２……移動筒、３……レンズ群
、４……距離リング、５……連結用のキー、６…
…モータ、７，７ａ，７ｂ……ストツパービス、
８……中間位置規制部材、９……ブラシ、１０…
…パターン、１０ａ，１０ｂ，１０ｃ，１０ｃ１
，１０ｃ２……パターン部、１１……ＩＣ、１２
……スイツチ。
Fig. 1 is a longitudinal sectional view of a lens barrel according to an embodiment of the present invention, Figs. 2 and 3 are exploded views of main parts to explain its operation, and Fig. 4 is another embodiment of the present invention. FIG. 5 is a developed view of the main parts showing still another embodiment of the present invention. 1...Fixed barrel, 2...Moveable barrel, 3...Lens group, 4...Distance ring, 5...Connection key, 6...
...Motor, 7, 7a, 7b... Stopper service,
8... Intermediate position regulating member, 9... Brush, 10...
...Pattern, 10a, 10b, 10c, 10c 1
,10c 2 ...pattern section, 11...IC, 12
...Switch.
Claims (1)
をし、無限遠側及び至近側の機械的規制部材の近
傍で位置検出を行い、該規制部材の近傍に入つた
時に該モータの駆動を停止又は低速駆動させるレ
ンズ鏡筒において、無限遠と至近の中間位置に切
換え可能な機械的な中間位置規制部材と、該中間
位置規制部材に連動したスイツチとを設け、該中
間位置規制部材が回転規制状態にある時は中間位
置検出手段により中間位置規制部材に当接前に該
モータを停止又は低速駆動し、回転規制状態でな
い時は無限遠から至近までレンズ駆動を可能にし
たことを特徴とするレンズ鏡筒。 ２ 合焦用レンズ群を手動により合焦動作を行う
ようにしたことを特徴とする請求項１記載のレン
ズ鏡筒。[Claims for Utility Model Registration] 1. A focusing lens group is driven by a motor, the position is detected in the vicinity of mechanical regulating members on the infinity side and the closest side, and the position is detected in the vicinity of the regulating members. In the lens barrel, the motor is stopped or driven at low speed when the motor is stopped, and a mechanical intermediate position regulating member that can be switched to an intermediate position between infinity and close range, and a switch interlocked with the intermediate position regulating member are provided. When the intermediate position regulating member is in the rotation regulating state, the intermediate position detecting means stops or drives the motor at low speed before contacting the intermediate position regulating member, and when the rotation is not in the rotation regulating state, the lens can be driven from infinity to close range. A lens barrel characterized by: 2. The lens barrel according to claim 1, wherein the focusing lens group is configured to manually perform a focusing operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1873990U JPH03110409U (en) | 1990-02-28 | 1990-02-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1873990U JPH03110409U (en) | 1990-02-28 | 1990-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03110409U true JPH03110409U (en) | 1991-11-13 |
Family
ID=31521886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1873990U Pending JPH03110409U (en) | 1990-02-28 | 1990-02-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03110409U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001305411A (en) * | 2000-04-20 | 2001-10-31 | Nikon Corp | Lens barrel |
-
1990
- 1990-02-28 JP JP1873990U patent/JPH03110409U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001305411A (en) * | 2000-04-20 | 2001-10-31 | Nikon Corp | Lens barrel |