JPH025727U - - Google Patents
Info
- Publication number
- JPH025727U JPH025727U JP8292088U JP8292088U JPH025727U JP H025727 U JPH025727 U JP H025727U JP 8292088 U JP8292088 U JP 8292088U JP 8292088 U JP8292088 U JP 8292088U JP H025727 U JPH025727 U JP H025727U
- Authority
- JP
- Japan
- Prior art keywords
- battery
- light beam
- attenuation
- lens
- continuously variable
- 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
- 230000003287 optical effect Effects 0.000 claims description 5
- 239000013307 optical fiber Substances 0.000 claims description 3
- 230000002238 attenuated effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案に係わる連続可変光減衰器の一
実施例を示す概略構成図、第２図は従来の連続可
変光減衰器の一実施例を示す概略構成図、第３図
は従来の光減衰素子の一例を示す正面図である。
８，１３……光フアイバ、９……第１のレンズ
、１０……平行光ビーム、１１……エレクトロク
ロミツク素子、１２……第２のレンズ、１４……
電池、１５……可変抵抗器、１６……切変スイツ
チ。
Fig. 1 is a schematic diagram showing an embodiment of a continuously variable optical attenuator according to the present invention, Fig. 2 is a schematic diagram showing an embodiment of a conventional continuously variable optical attenuator, and Fig. 3 is a schematic diagram showing an embodiment of a conventional continuously variable optical attenuator. It is a front view showing an example of a light attenuation element. 8, 13... Optical fiber, 9... First lens, 10... Parallel light beam, 11... Electrochromic element, 12... Second lens, 14...
Battery, 15...variable resistor, 16...change switch.
Claims (1)
り平行光ビームに変換し、光減衰素子により光の
強度を減衰させた後、この平行光ビームをレンズ
により再び光フアイバに集光するよう構成した連
続可変減衰器において、前記光減衰素子としてエ
レクトロクロミツク素子を用い、かつこのエレク
トロクロミツク素子に電荷を供給するための電池
と、この電池に直列に接続された可変抵抗器と、
前記電池の出力極性を正逆に切り換え可能でかつ
回路の遮断も可能な機能を持つ切換スイツチを備
えたことを特徴とする連続可変光減衰器。 Continuously variable attenuation in which the light beam emitted from the optical fiber is converted into a parallel light beam by a lens, the intensity of the light is attenuated by an optical attenuation element, and then this parallel light beam is focused back onto the optical fiber by a lens. In the device, an electrochromic element is used as the light attenuation element, a battery for supplying charge to the electrochromic element, and a variable resistor connected in series to the battery,
A continuously variable optical attenuator characterized by comprising a changeover switch capable of switching the output polarity of the battery between forward and reverse and also capable of interrupting the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8292088U JPH025727U (en) | 1988-06-24 | 1988-06-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8292088U JPH025727U (en) | 1988-06-24 | 1988-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH025727U true JPH025727U (en) | 1990-01-16 |
Family
ID=31307655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8292088U Pending JPH025727U (en) | 1988-06-24 | 1988-06-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH025727U (en) |
-
1988
- 1988-06-24 JP JP8292088U patent/JPH025727U/ja active Pending