JPS5766013A - Light shielding device for automobile window glass - Google Patents
Light shielding device for automobile window glassInfo
- Publication number
- JPS5766013A JPS5766013A JP14196580A JP14196580A JPS5766013A JP S5766013 A JPS5766013 A JP S5766013A JP 14196580 A JP14196580 A JP 14196580A JP 14196580 A JP14196580 A JP 14196580A JP S5766013 A JPS5766013 A JP S5766013A
- Authority
- JP
- Japan
- Prior art keywords
- light
- liquid crystal
- crystal body
- voltage
- electrodes
- 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
PURPOSE: To improve light shielding property and the field of view, by constituting a light filter by a liquid crystal body whose light transmittance can be adjusted by applying a voltage.
CONSTITUTION: A light filter mechanism which is constituted by the liquid crystal body 7, a polarizer 2, a light-sensor 3, and transparent electrodes 4 and 4' is mounted on a wind shield glass part and the like of the automobile. In this constitution, natural light is polarized by the polarizer 2, and enters the liquid crystal body 7. The polarization axis is rotated by 90°. Then light passes the light sensor 3. Therefore the glass is transparent. When the voltage is applied to the electrodes 4 and 4', the light is shielded by the light sensor 3 because the polarization axis is not polarized by the liquid crystal body 7. If said electrode 4 and 4' are divided into a plurality of parts and the electrodes to which the voltage is applied can be selected, light can be shielded only at the necessary areas. Therefore the shielding property and the field of view can be improved.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14196580A JPS5766013A (en) | 1980-10-13 | 1980-10-13 | Light shielding device for automobile window glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14196580A JPS5766013A (en) | 1980-10-13 | 1980-10-13 | Light shielding device for automobile window glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5766013A true JPS5766013A (en) | 1982-04-22 |
Family
ID=15304237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14196580A Pending JPS5766013A (en) | 1980-10-13 | 1980-10-13 | Light shielding device for automobile window glass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5766013A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4736370A (en) * | 1984-12-27 | 1988-04-05 | Fujitsu Limited | Transmitting data processing system |
| JPH0376713U (en) * | 1989-11-28 | 1991-07-31 | ||
| GB2475102A (en) * | 2009-11-09 | 2011-05-11 | Paul Slevin | A vehicle windscreen with a liquid crystal light polarising layer |
| JP2011137873A (en) * | 2009-12-25 | 2011-07-14 | Toyota Motor Corp | Light control glass |
| CN111176035A (en) * | 2020-02-24 | 2020-05-19 | 北京京东方技术开发有限公司 | Peep-proof and anti-theft listening device, glass, automobile and peep-proof method |
| JP2022143084A (en) * | 2021-03-17 | 2022-10-03 | 矢崎総業株式会社 | Dimming glass control device and dimming control system |
-
1980
- 1980-10-13 JP JP14196580A patent/JPS5766013A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4736370A (en) * | 1984-12-27 | 1988-04-05 | Fujitsu Limited | Transmitting data processing system |
| JPH0376713U (en) * | 1989-11-28 | 1991-07-31 | ||
| GB2475102A (en) * | 2009-11-09 | 2011-05-11 | Paul Slevin | A vehicle windscreen with a liquid crystal light polarising layer |
| JP2011137873A (en) * | 2009-12-25 | 2011-07-14 | Toyota Motor Corp | Light control glass |
| CN111176035A (en) * | 2020-02-24 | 2020-05-19 | 北京京东方技术开发有限公司 | Peep-proof and anti-theft listening device, glass, automobile and peep-proof method |
| CN111176035B (en) * | 2020-02-24 | 2022-06-24 | 北京京东方技术开发有限公司 | Peep-proof and anti-theft listening device, glass, automobile and peep-proof method |
| JP2022143084A (en) * | 2021-03-17 | 2022-10-03 | 矢崎総業株式会社 | Dimming glass control device and dimming control system |
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