JPS6491105A - Continuous variable light attenuator - Google Patents
Continuous variable light attenuatorInfo
- Publication number
- JPS6491105A JPS6491105A JP62247935A JP24793587A JPS6491105A JP S6491105 A JPS6491105 A JP S6491105A JP 62247935 A JP62247935 A JP 62247935A JP 24793587 A JP24793587 A JP 24793587A JP S6491105 A JPS6491105 A JP S6491105A
- Authority
- JP
- Japan
- Prior art keywords
- light
- transparent electrodes
- electrochromic material
- attenuating element
- variable light
- 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
Landscapes
- Light Guides In General And Applications Therefor (AREA)
- Optical Couplings Of Light Guides (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
PURPOSE:To improve the accuracy of the control of a light attenuation quantity by using an electrochromic material which controls a light absorption quantity as a light attenuating element between a pair of lenses for input and output light. CONSTITUTION:The light attenuating element 10 having the electrochromic material 9 is disposed between a pair of the lenses 7 and 8 for input and output light. The light attenuating element 10 is laminated and formed on optical glass or high-polymer film so as to sandwich the electrochromic material 9 with two sheets of transparent electrodes 14. The element 10 is colored when a DC voltage is applied to the transparent electrodes 14 of said element by a light attenuating element control circuit 13. The decoloration of the colored layer is possible as well when the polarities of the transparent electrodes are inverted. The light attenuation quantity is thus controlled with the good accuracy by adjusting the polarities of the transparent electrodes 14 and the magnitude of the voltage to be impressed thereto.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62247935A JPS6491105A (en) | 1987-10-02 | 1987-10-02 | Continuous variable light attenuator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62247935A JPS6491105A (en) | 1987-10-02 | 1987-10-02 | Continuous variable light attenuator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6491105A true JPS6491105A (en) | 1989-04-10 |
Family
ID=17170744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62247935A Pending JPS6491105A (en) | 1987-10-02 | 1987-10-02 | Continuous variable light attenuator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6491105A (en) |
-
1987
- 1987-10-02 JP JP62247935A patent/JPS6491105A/en active Pending
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