JPS60110820U - Externally controlled variable optical attenuator - Google Patents
Externally controlled variable optical attenuatorInfo
- Publication number
- JPS60110820U JPS60110820U JP20261483U JP20261483U JPS60110820U JP S60110820 U JPS60110820 U JP S60110820U JP 20261483 U JP20261483 U JP 20261483U JP 20261483 U JP20261483 U JP 20261483U JP S60110820 U JPS60110820 U JP S60110820U
- Authority
- JP
- Japan
- Prior art keywords
- optical attenuation
- controlled variable
- externally controlled
- optical attenuator
- variable optical
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、従来の光減衰板の光減衰量特性を示す線図、
第２図は、本考案の実施例に使用する光減衰器を示す斜
視図、第３［ｆｆ１ａ、ｂは第、２図に示す光減衰器に
使用する光減衰板の正面区、第４図は、本考案の外部制
御式可変光減衰器の実施例を示すブ吊ツク図、第５図は
、本考案による実施例の光減衰量データを示す線区、第
６区は本実施例の動作を説明するフローチャートである
。
１１・・・インターフェイス、１２・・・・・・コント
ローラ、１３・・・・・・記憶回路、１４・・・・・・
モータドライバ＋、１５ａ、１５ｂ・・・・・・ステッ
ピングモータ、１ 。
６・・・・・・可変光減衰器、１７・・・・・・操作パ
ネル、１８・・・・・・表示部。FIG. 1 is a diagram showing the optical attenuation characteristics of a conventional optical attenuation plate.
Fig. 2 is a perspective view showing an optical attenuator used in an embodiment of the present invention; 5 is a block diagram showing an embodiment of the externally controlled variable optical attenuator of the present invention, FIG. It is a flowchart explaining the operation. 11...Interface, 12...Controller, 13...Memory circuit, 14...
Motor driver +, 15a, 15b...Stepping motor, 1. 6... Variable optical attenuator, 17... Operation panel, 18... Display section.
Claims (1)
を回転させるステップモータとを含め、外部制御信号に
より光の減衰量を切替える外部制御式可変光減衰器にお
いて、前記光減衰量と、前記光減衰量の各々に対応した
前記ステップモータの回転角情報とを記憶する記憶回路
と、入力された設定すべき光減衰量データと前記記憶回
路の光減衰量とを比較し所定の減衰量が設定されるよう
′に前記回転角情報を算出し前記ステップモータを制御
する制御回路とを含む外部制御式可変光減衰器。In an externally controlled variable optical attenuator that includes an optical attenuation plate whose optical attenuation changes in the circumferential direction and a step motor that rotates the optical attenuation plate, the optical attenuation is changed by an external control signal. and a storage circuit that stores rotation angle information of the step motor corresponding to each of the optical attenuation amounts, and compares the input optical attenuation amount data to be set with the optical attenuation amount of the storage circuit to obtain a predetermined value. an externally controlled variable optical attenuator, comprising: a control circuit that calculates the rotation angle information and controls the step motor so that an amount of attenuation is set;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20261483U JPS60110820U (en) | 1983-12-27 | 1983-12-27 | Externally controlled variable optical attenuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20261483U JPS60110820U (en) | 1983-12-27 | 1983-12-27 | Externally controlled variable optical attenuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60110820U true JPS60110820U (en) | 1985-07-27 |
Family
ID=30765053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20261483U Pending JPS60110820U (en) | 1983-12-27 | 1983-12-27 | Externally controlled variable optical attenuator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60110820U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01133117U (en) * | 1987-10-09 | 1989-09-11 |
-
1983
- 1983-12-27 JP JP20261483U patent/JPS60110820U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01133117U (en) * | 1987-10-09 | 1989-09-11 |
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