JPS57104433A - Automatic turn-on/off device for turn-on circuit of automobile light - Google Patents
Automatic turn-on/off device for turn-on circuit of automobile lightInfo
- Publication number
- JPS57104433A JPS57104433A JP55180980A JP18098080A JPS57104433A JP S57104433 A JPS57104433 A JP S57104433A JP 55180980 A JP55180980 A JP 55180980A JP 18098080 A JP18098080 A JP 18098080A JP S57104433 A JPS57104433 A JP S57104433A
- Authority
- JP
- Japan
- Prior art keywords
- turn
- switch
- ambience
- transistors
- automatic
- 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
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
PURPOSE: To enable automatic turn-on/off at or after driving in a tunnel during the daytime, by connecting a manual switch with an automatic switch which opens or closes in response to natural light.
CONSTITUTION: When the ambience has darkened in driving with a key switch 2 open, the resistance of a photosensitive element 15 changes from zero to infinity and an electrical current flows from a battery 1 to a variable resistor 12 and a voltage is applied across the emitter and base of a transistor 7. At that time, electrical currents flows through the transistors 7, 7' and a contact 6' is closed so that a headlight 4 or a taillight 4' is automatically turned on although a manual switch 3 is not used. When the ambience has lightened beyoned a prescribed luminous intensity, the resistance of the photosensitive element 15 becomes zero and the transistors 7, 7' are put out of operation so that the lights 4, 4' are automatically turned off.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55180980A JPS57104433A (en) | 1980-12-19 | 1980-12-19 | Automatic turn-on/off device for turn-on circuit of automobile light |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55180980A JPS57104433A (en) | 1980-12-19 | 1980-12-19 | Automatic turn-on/off device for turn-on circuit of automobile light |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57104433A true JPS57104433A (en) | 1982-06-29 |
Family
ID=16092635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55180980A Pending JPS57104433A (en) | 1980-12-19 | 1980-12-19 | Automatic turn-on/off device for turn-on circuit of automobile light |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57104433A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2141052A1 (en) * | 1997-05-21 | 2000-03-01 | Brotons Javier Bruna | Device for automatically switching on and switching off a vehicle's lights |
JP2010020749A (en) * | 2008-07-11 | 2010-01-28 | Samsung Mobile Display Co Ltd | Touch screen panel and method of fabricating the same |
JP4828757B2 (en) * | 1999-11-26 | 2011-11-30 | プラッツ、カール−オットー | Capacitive sensor on transparent carrier |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4983280A (en) * | 1972-12-15 | 1974-08-10 | ||
JPS50107791A (en) * | 1974-02-02 | 1975-08-25 |
-
1980
- 1980-12-19 JP JP55180980A patent/JPS57104433A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4983280A (en) * | 1972-12-15 | 1974-08-10 | ||
JPS50107791A (en) * | 1974-02-02 | 1975-08-25 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2141052A1 (en) * | 1997-05-21 | 2000-03-01 | Brotons Javier Bruna | Device for automatically switching on and switching off a vehicle's lights |
JP4828757B2 (en) * | 1999-11-26 | 2011-11-30 | プラッツ、カール−オットー | Capacitive sensor on transparent carrier |
JP2010020749A (en) * | 2008-07-11 | 2010-01-28 | Samsung Mobile Display Co Ltd | Touch screen panel and method of fabricating the same |
US8279201B2 (en) | 2008-07-11 | 2012-10-02 | Samsung Display Co., Ltd. | Touch screen panel and method of fabricating the same |
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