JPS63118024U - - Google Patents
Info
- Publication number
- JPS63118024U JPS63118024U JP930787U JP930787U JPS63118024U JP S63118024 U JPS63118024 U JP S63118024U JP 930787 U JP930787 U JP 930787U JP 930787 U JP930787 U JP 930787U JP S63118024 U JPS63118024 U JP S63118024U
- Authority
- JP
- Japan
- Prior art keywords
- lens barrel
- time
- motor
- energization
- moving lens
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 101150061050 CIN1 gene Proteins 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
Landscapes
- Lens Barrels (AREA)
Description
第１図は、本考案に係るカメラの移動鏡胴駆動
装置の一実施例の全体の構成を示すブロツク図、
第２図は、同実施例の機構部の構成を示す縦断側
面図で、移動鏡胴が広角Ｗ位置にある状態を示し
ており、第３図と第４図は、共に第１図の各部の
動作波形および第２図の各部材の変位をも合せて
示したタイミングチヤートで、第３図は、Ｗ位置
から望遠Ｔ位置へ移動した場合、第４図は、Ｔ位
置からＷ位置へ移動した場合についてそれぞれ示
しており、第５図は、第３図および第４図に示し
た駆動信号ａの時点ｔ２〜ｔ９までを拡大して示
した図、第６図は、第５図の時点ｔ４〜ｔ５の波
形をさらに拡大して示した図、第７図は第１図に
示した制御回路１０の動作順序を示すフローチヤ
ートである。
１……移動鏡胴、１ｂ……アーム、２……鏡胴
枠、２ｂ……望遠側位置（Ｔ位置）のストツパ、
２ｃ……広角側位置（Ｗ位置）のストツパ、３…
…位置検出回路、４〜６……電極、４ａ，５ａ，
６ａ……出力端、５ｂ……絶縁部、７……短絡片
、８ａ，８ｂ，８ｃ……プルアツプ抵抗、９……
Ｔ／Ｗ切換スイツチ、１０……制御回路、Ｓ１，
Ｓ２，Ｓ３……入力端、ＣＰ１，ＣＰ２……出力
端、１１……スイツチング回路、ＣＩＮ１，ＣＩ
Ｎ２……制御入力端、Ｅ……電源入力端、Ｍ１，
Ｍ２……駆動出力端、１２……モータ、１３……
電源。
FIG. 1 is a block diagram showing the overall configuration of an embodiment of a moving lens barrel driving device for a camera according to the present invention;
FIG. 2 is a longitudinal side view showing the structure of the mechanism of the same embodiment, showing the movable lens barrel in the wide-angle W position, and FIGS. 3 and 4 show each part of FIG. 1. This is a timing chart showing the operation waveform of and the displacement of each member in Fig. 2. Fig. 3 shows the movement from the W position to the telephoto T position, and Fig. 4 shows the movement from the T position to the W position. FIG. 5 is an enlarged view of the drive signal a shown in FIGS. 3 and 4 from time t 2 to t 9 , and FIG. FIG. 7 is a flowchart showing the operation sequence of the control circuit 10 shown in FIG. 1 . 1...Moving lens barrel, 1b...Arm, 2... Lens barrel frame, 2b...Telephoto side position (T position) stopper,
2c...Stopper at wide-angle side position (W position), 3...
...Position detection circuit, 4-6...Electrode, 4a, 5a,
6a... Output end, 5b... Insulating section, 7... Short circuit piece, 8a, 8b, 8c... Pull-up resistor, 9...
T/W changeover switch, 10...control circuit, S1,
S2, S3...Input terminal, CP1, CP2...Output terminal, 11...Switching circuit, CIN1, CI
N2...Control input terminal, E...Power input terminal, M1,
M2... Drive output end, 12... Motor, 13...
power supply.
Claims (1)
ータによつて光軸に沿う方向の第１の位置および
第２の位置に駆動するカメラの移動鏡胴駆動装置
において、上記移動鏡胴が上記第１の位置および
上記第２の位置のそれぞれの内方近傍に位置して
いることを検出する位置検出回路と、上記モータ
への通電を断続する開閉回路と、上記位置検出回
路の出力を受け、この出力を受けた時点から上記
モータへの通電を所定の周期で断続し、かつ上記
時点からの時間の経過と共に上記周期のそれぞれ
の１周期内における該通電の時間を徐々に減少さ
せていきその後この通電を断つように上記開閉回
路を制御する制御回路とで構成したことを特徴と
するカメラにおける移動鏡胴駆動装置。 In a moving lens barrel drive device for a camera that drives a moving lens barrel slidably supported within a lens barrel frame to a first position and a second position in a direction along an optical axis by a motor, the moving lens a position detection circuit for detecting that the torso is located inwardly of each of the first position and the second position; an opening/closing circuit for intermittent energization of the motor; receives an output, and from the time the output is received, energization to the motor is intermittent at a predetermined cycle, and as time passes from the time, the time of energization within each of the cycles is gradually decreased. 1. A movable lens barrel drive device for a camera, comprising: a control circuit that controls the opening/closing circuit so as to turn on the current and then cut off the current supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP930787U JPS63118024U (en) | 1987-01-27 | 1987-01-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP930787U JPS63118024U (en) | 1987-01-27 | 1987-01-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63118024U true JPS63118024U (en) | 1988-07-30 |
Family
ID=30794498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP930787U Pending JPS63118024U (en) | 1987-01-27 | 1987-01-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63118024U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4867682A (en) * | 1971-12-17 | 1973-09-14 | ||
| JPS4984436A (en) * | 1972-12-18 | 1974-08-14 | ||
| JPS5964816A (en) * | 1982-10-05 | 1984-04-12 | Olympus Optical Co Ltd | Lens barrel |
-
1987
- 1987-01-27 JP JP930787U patent/JPS63118024U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4867682A (en) * | 1971-12-17 | 1973-09-14 | ||
| JPS4984436A (en) * | 1972-12-18 | 1974-08-14 | ||
| JPS5964816A (en) * | 1982-10-05 | 1984-04-12 | Olympus Optical Co Ltd | Lens barrel |
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