JPS63130754U - - Google Patents
Info
- Publication number
- JPS63130754U JPS63130754U JP2325987U JP2325987U JPS63130754U JP S63130754 U JPS63130754 U JP S63130754U JP 2325987 U JP2325987 U JP 2325987U JP 2325987 U JP2325987 U JP 2325987U JP S63130754 U JPS63130754 U JP S63130754U
- Authority
- JP
- Japan
- Prior art keywords
- focal length
- lens barrel
- side position
- movable lens
- length side
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
Landscapes
- Structure And Mechanism Of Cameras (AREA)
Description
第1図は、本考案に係る二焦点カメラの移動鏡
筒駆動装置の一実施例の全体構成を示すブロツク
図、第2図〜第4図は、いずれも上記第1図に示
す実施例の動作順序を示すフローチヤートで、第
2図は、焦点切換動作全体を示すメインルーチン
、第3図および第4図は、いずれも第2図のメイ
ンルーチンで使用するサブルーチンで、第3図は
移動鏡筒の繰込み動作を示し、第4図は同じく移
動鏡筒の繰出し動作を示している。
1……レリーズスイツチ、4……T/Wスイツ
チ、5……W位置検出スイツチ、6……T位置検
出スイツチ、9……プルアツプ制御回路、10…
…制御部(CPU)、TM……タイマー、FG…
…方向フラグ、CM1,CM2……制御出力端子
、INTO……割込み入力端子、RL,T/W…
…識別入力端子、CTL……コントロール出力端
子、TWW,TWT……入力端子、11……モー
タ駆動回路、12……移動鏡筒(鏡筒)、12a
……フランジ部、13……モータ、14……モー
タ電源、15……指、16……ゴミ、17……カ
メラ本体部。
FIG. 1 is a block diagram showing the overall configuration of an embodiment of a movable lens barrel driving device for a bifocal camera according to the present invention, and FIGS. 2 to 4 show the structure of the embodiment shown in FIG. This is a flowchart showing the operation sequence. Fig. 2 is a main routine showing the entire focus switching operation, Figs. 3 and 4 are subroutines used in the main routine of Fig. 2, and Fig. 3 is a main routine showing the entire focus switching operation. FIG. 4 shows the retracting operation of the lens barrel, and FIG. 4 similarly shows the retracting operation of the movable lens barrel. 1...Release switch, 4...T/W switch, 5...W position detection switch, 6...T position detection switch, 9...Pull-up control circuit, 10...
...Control unit (CPU), TM...Timer, FG...
... Direction flag, CM1, CM2 ... Control output terminal, INTO ... Interrupt input terminal, RL, T/W ...
...Identification input terminal, CTL...Control output terminal, TWW, TWT...Input terminal, 11...Motor drive circuit, 12...Moving lens barrel (lens barrel), 12a
...Flange part, 13 ... Motor, 14 ... Motor power supply, 15 ... Finger, 16 ... Dust, 17 ... Camera body.
Claims (1)
も一部を収納支持する移動鏡筒をカメラ本体から
繰出す方向に位置する第1の焦点距離側位置と該
カメラ本体内に繰込まれる方向に位置する第2の
焦点距離側位置にそれぞれ選択的にモータにより
駆動することにより焦点距離を二段に切換える焦
点距離切換機構を有する二焦点カメラにおいて、
上記焦点距離を切換える焦点距離切換動作を起動
する焦点距離切換起動手段と、この焦点距離切換
起動手段の出力を受け上記第1の焦点距離側位置
または上記第2の焦点距離側位置への駆動である
かの駆動方向を指示する方向情報を出力する駆動
方向判定手段と、上記移動鏡筒が上記第1の焦点
距離側位置および上記第2の焦点距離側位置のい
ずれに位置しているかを検出する移動鏡筒位置検
出手段と、上記焦点距離の切換えに必要にして充
分な時間に対応する切換予定時間を計時し該切換
予定時間経過時点で計時終了信号を出力する計時
手段と、上記移動鏡筒を上記第1の焦点距離側位
置または上記第2の焦点距離側位置のいずれかに
設定すべく上記モータを駆動制御するモータ駆動
手段と、上記第2の焦点距離側位置に駆動する方
向情報を上記駆動方向判定手段より受け、上記モ
ータ駆動手段によつて上記移動鏡筒を上記第2の
焦点距離側位置に向けて駆動し始めた時点から計
時動作を始めた上記計時手段から計時完了信号を
受けた時点で上記移動鏡筒が上記第2の焦点距離
側位置に到達していないことを上記移動鏡筒位置
検出手段から出力される検出信号により認識した
とき、上記移動鏡筒を上記第1の焦点距離側位置
に戻すように上記モータ駆動手段を制御する制御
手段とから構成されていることを特徴とする二焦
点カメラの移動鏡筒駆動装置。 A first focal length side position located in a direction in which a movable lens barrel that accommodates and supports at least a portion of a lens group constituting a variable focus optical system is extended from the camera body, and a first focal length side position located in a direction in which it is retracted into the camera body. In a bifocal camera having a focal length switching mechanism that switches the focal length in two steps by selectively driving each of the second focal length side positions by a motor,
a focal length switching starting means for starting a focal length switching operation for switching the focal length; and driving to the first focal length side position or the second focal length side position in response to the output of the focal length switching starting means. drive direction determining means for outputting direction information indicating a certain drive direction; and detecting whether the movable lens barrel is located at either the first focal length side position or the second focal length side position. a movable lens barrel position detecting means for detecting the position of a moving lens barrel, a timing means for timing a scheduled switching time corresponding to a time necessary and sufficient for switching the focal length, and outputting a timing end signal when the scheduled switching time has elapsed; a motor drive means for driving and controlling the motor to set the cylinder at either the first focal length position or the second focal length position; and direction information for driving the motor to the second focal length position. is received by the drive direction determining means, and a timekeeping completion signal is received from the timekeeping means, which starts a timekeeping operation from the time when the motor driving means starts driving the movable lens barrel toward the second focal length side position. When it is recognized from the detection signal output from the movable lens barrel position detection means that the movable lens barrel has not reached the second focal length side position at the time when the movable lens barrel is moved to the second focal length side position. 1. A movable lens barrel drive device for a bifocal camera, comprising: control means for controlling the motor drive means so as to return the motor drive means to a focal length side position of 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987023259U JPH0641228Y2 (en) | 1987-02-19 | 1987-02-19 | Moving lens barrel drive for bifocal camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987023259U JPH0641228Y2 (en) | 1987-02-19 | 1987-02-19 | Moving lens barrel drive for bifocal camera |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63130754U true JPS63130754U (en) | 1988-08-26 |
JPH0641228Y2 JPH0641228Y2 (en) | 1994-10-26 |
Family
ID=30821399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987023259U Expired - Lifetime JPH0641228Y2 (en) | 1987-02-19 | 1987-02-19 | Moving lens barrel drive for bifocal camera |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0641228Y2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08890U (en) * | 1995-10-02 | 1996-05-31 | 株式会社リコー | Moving lens barrel drive for variable focus camera |
JP2004302413A (en) * | 2003-03-29 | 2004-10-28 | Samsung Electro Mech Co Ltd | Rotational driving module for camera by motor and sensor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS611779A (en) * | 1984-06-12 | 1986-01-07 | 松下電器産業株式会社 | Power window controller |
JPS61259243A (en) * | 1985-05-14 | 1986-11-17 | Konishiroku Photo Ind Co Ltd | Focal length changeover camera |
-
1987
- 1987-02-19 JP JP1987023259U patent/JPH0641228Y2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS611779A (en) * | 1984-06-12 | 1986-01-07 | 松下電器産業株式会社 | Power window controller |
JPS61259243A (en) * | 1985-05-14 | 1986-11-17 | Konishiroku Photo Ind Co Ltd | Focal length changeover camera |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08890U (en) * | 1995-10-02 | 1996-05-31 | 株式会社リコー | Moving lens barrel drive for variable focus camera |
JP2004302413A (en) * | 2003-03-29 | 2004-10-28 | Samsung Electro Mech Co Ltd | Rotational driving module for camera by motor and sensor |
Also Published As
Publication number | Publication date |
---|---|
JPH0641228Y2 (en) | 1994-10-26 |
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