JPH0358610U - - Google Patents
Info
- Publication number
- JPH0358610U JPH0358610U JP12000589U JP12000589U JPH0358610U JP H0358610 U JPH0358610 U JP H0358610U JP 12000589 U JP12000589 U JP 12000589U JP 12000589 U JP12000589 U JP 12000589U JP H0358610 U JPH0358610 U JP H0358610U
- Authority
- JP
- Japan
- Prior art keywords
- slider
- contact
- zoom lens
- magnification
- conductive
- 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 10
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Lens Barrels (AREA)
Description
第１図は、本考案に係るズームレンズの倍率検
出装置に適用するズーム・システムの一例を示す
システム構成図、第２図は、第１図に示すズーム
・システムを用いたズームレンズの倍率検出装置
の概略の一構成例を示す斜視図、第３図は、第２
図に示すズームレンズの倍率検出装置のズームの
検出板の構成を模式的に示す平面図、第４図は、
このズーム検出板の電気回路を等価的に示す等価
回路図、第５図は、最上段の端子から出力される
ＯＮ−ＯＦＦパターンの出力と、３番目の端子か
ら出力される位置決定電圧Ｖｘの出力とを同一図
上で示す出力特性図、第６図は、ズーム検出板の
他の実施例概略構成を示す部分平面図である。
１，１′……ズームレンズの倍率検出装置、１
０，１０′……ズームレンズ筒、１１，１１′…
…摺動子、１１ａ′……導電性ブラシ、２０，２
０′……ズーム検出板、２１，２１′……摺動抵
抗体、２２，２２′……導電パターン、２３，２
３′……スイツチパターン、２３ａ〜２３ｆ……
導電性小片（ＯＮ−ＯＦＦパターン）、２３ｇ…
…制限用抵抗、２４〜２７……端子群、３０……
駆動制御回路、３１……スイツチパターン入力部
、３２……ＣＰＵ、３２ａ……入力ポート、３２
ｂ……Ａ／Ｄ変換入力ポート、３２ｃ……Ｉ／Ｏ
インターフエイスの出力ポート、３３……抵抗出
力Ａ／Ｄ入力部、３４……ズーム演算制御部、３
５……不揮発性メモリ、３６……ＤＣモータ、３
７……ＤＣモータドライバ、３８……ＤＣモータ
制御部、Ｏ……ズームレンズ光軸、Ｖｘ……位置
決定電圧。
Fig. 1 is a system configuration diagram showing an example of a zoom system applied to a zoom lens magnification detection device according to the present invention, and Fig. 2 is a system configuration diagram showing a zoom lens magnification detection using the zoom system shown in Fig. 1. FIG. 3 is a perspective view showing a schematic configuration example of the device, and FIG.
FIG. 4 is a plan view schematically showing the configuration of the zoom detection plate of the zoom lens magnification detection device shown in the figure.
FIG. 5 is an equivalent circuit diagram equivalently showing the electrical circuit of this zoom detection board. FIG. 6 is a partial plan view showing the schematic configuration of another embodiment of the zoom detection plate. 1, 1'...Zoom lens magnification detection device, 1
0,10'...Zoom lens barrel, 11,11'...
...Slider, 11a'...Conductive brush, 20,2
0'... Zoom detection plate, 21, 21'... Sliding resistor, 22, 22'... Conductive pattern, 23, 2
3'...Switch pattern, 23a to 23f...
Conductive small piece (ON-OFF pattern), 23g...
...Limiting resistor, 24-27...Terminal group, 30...
Drive control circuit, 31...Switch pattern input section, 32...CPU, 32a...Input port, 32
b...A/D conversion input port, 32c...I/O
Interface output port, 33... Resistance output A/D input section, 34... Zoom calculation control section, 3
5...Nonvolatile memory, 36...DC motor, 3
7...DC motor driver, 38...DC motor control unit, O...zoom lens optical axis, Vx...position determining voltage.
Claims (1)
運動する倍率変更部材と、この倍率変更部材に設
けられ一体的に往復変位する摺動子と、この摺動
子と接触し且つ前記摺動子の変位量に応じてその
抵抗出力値が変化する摺動抵抗体と、所定の絶縁
間隔を隔てて並設された複数個の導電性小片を有
し、前記摺動子が導電性小片に接触しているとき
の出力信号の性格と、摺動子が絶縁間隔に接触し
ているときの出力信号の性格とが異なるオン−オ
フ信号を発生するオン−オフ・パターンと、この
オン−オフ・パターンの各導電性小片の形成位置
に対応する摺動抵抗体上の位置における抵抗出力
基準値を予め設定しておく手段と、前記摺動子が
オン−オフ・パターンの導電性小片群と摺動抵抗
体とに同時に接触したときに、その接触位置に対
応した導電性小片の出力信号により、接触時の摺
動抵抗体の抵抗出力値を前記抵抗出力基準値に設
定する設定手段とを有することを特徴とするズー
ムレンズの倍率検出装置。 (2) 抵抗出力基準値を予め設定して置く手段が
、Ｅ２ＰＲＯＭから成る不揮発性メモリである請
求項１記載のズームレンズの倍率検出装置。[Claims for Utility Model Registration] (1) A magnification changing member that moves reciprocatingly to change the magnification of a zoom lens, a slider that is provided on this magnification changing member and that integrally moves back and forth, and this sliding a sliding resistor that is in contact with the slider and whose resistance output value changes depending on the amount of displacement of the slider; and a plurality of conductive small pieces arranged in parallel with a predetermined insulation interval, An on-off system that generates an on-off signal in which the character of the output signal when the slider is in contact with a conductive piece is different from the character of the output signal when the slider is in contact with an insulating gap.・Means for presetting a resistance output reference value at a position on the sliding resistor corresponding to the formation position of each conductive piece of the on-off pattern;・When a group of conductive small pieces of a pattern and a sliding resistor are contacted at the same time, the output signal of the conductive small piece corresponding to the contact position is used to set the resistance output value of the sliding resistor at the time of contact to the resistance output standard. 1. A zoom lens magnification detection device, comprising: setting means for setting a value. (2) The magnification detection device for a zoom lens according to claim 1, wherein the means for presetting the resistance output reference value is a nonvolatile memory comprising an E 2 PROM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12000589U JPH089694Y2 (en) | 1989-10-14 | 1989-10-14 | Zoom lens magnification detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12000589U JPH089694Y2 (en) | 1989-10-14 | 1989-10-14 | Zoom lens magnification detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0358610U true JPH0358610U (en) | 1991-06-07 |
| JPH089694Y2 JPH089694Y2 (en) | 1996-03-21 |
Family
ID=31668098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12000589U Expired - Lifetime JPH089694Y2 (en) | 1989-10-14 | 1989-10-14 | Zoom lens magnification detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH089694Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116735167A (en) * | 2023-08-16 | 2023-09-12 | 深圳市灿锐科技有限公司 | Lens multiplying power and distortion detection method |
-
1989
- 1989-10-14 JP JP12000589U patent/JPH089694Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116735167A (en) * | 2023-08-16 | 2023-09-12 | 深圳市灿锐科技有限公司 | Lens multiplying power and distortion detection method |
| CN116735167B (en) * | 2023-08-16 | 2023-10-13 | 深圳市灿锐科技有限公司 | Lens multiplying power and distortion detection method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH089694Y2 (en) | 1996-03-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |