JPS5631841A - Headlight controller - Google Patents
Headlight controllerInfo
- Publication number
- JPS5631841A JPS5631841A JP10663579A JP10663579A JPS5631841A JP S5631841 A JPS5631841 A JP S5631841A JP 10663579 A JP10663579 A JP 10663579A JP 10663579 A JP10663579 A JP 10663579A JP S5631841 A JPS5631841 A JP S5631841A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- headlight
- luminous intensity
- light
- vehicle
- 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
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
PURPOSE: To prevent light from keeping lighting-up after a vehicle passes a tunnel by permitting the headlight of the vehicle to be automatically controlled through switching between lighting up and off according to the amount of outside light.
CONSTITUTION: A light receiving element P is installed on a meter panel PB so that the optical axis (h) is directed upward outside a vehicle, through a front glass FG. The amount L of light received is first judged whether it exceeds the predetermined value L0 in a luminous intensity discriminating circuit 100. In case of L>L0, the luminous intensity discrimination output V5 is in high level, and in case of L<L0, the luminous intensity discrimination output V5 is in low level. The alarm of the apparatus for preventing of forgetting of turning off headlight is generated by the logic product output of the wave-form shaping signal of the light receiving element output signal and the reversal signal of the headlight turning-off signal from a signal delaying circuit.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10663579A JPS5631841A (en) | 1979-08-23 | 1979-08-23 | Headlight controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10663579A JPS5631841A (en) | 1979-08-23 | 1979-08-23 | Headlight controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5631841A true JPS5631841A (en) | 1981-03-31 |
Family
ID=14438565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10663579A Pending JPS5631841A (en) | 1979-08-23 | 1979-08-23 | Headlight controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5631841A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57180893A (en) * | 1981-04-30 | 1982-11-08 | Matsushita Electric Works Ltd | Automatic flasher |
JPS58132745U (en) * | 1982-03-02 | 1983-09-07 | オムロン株式会社 | Vehicle light control device |
JPS63172743U (en) * | 1987-04-30 | 1988-11-09 | ||
WO1998052790A1 (en) * | 1997-05-21 | 1998-11-26 | Javier Bruna Brotons | Device for automatically switching on and off the lights of a vehicle and warning lights for road traffic |
JP2002299077A (en) * | 2001-03-30 | 2002-10-11 | Tempearl Ind Co Ltd | Energy saving monitoring system |
JP2011018467A (en) * | 2009-07-07 | 2011-01-27 | Iwasaki Electric Co Ltd | Tunnel lighting system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5335393A (en) * | 1976-09-14 | 1978-04-01 | Hitachi Ltd | Photo connector |
-
1979
- 1979-08-23 JP JP10663579A patent/JPS5631841A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5335393A (en) * | 1976-09-14 | 1978-04-01 | Hitachi Ltd | Photo connector |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57180893A (en) * | 1981-04-30 | 1982-11-08 | Matsushita Electric Works Ltd | Automatic flasher |
JPS58132745U (en) * | 1982-03-02 | 1983-09-07 | オムロン株式会社 | Vehicle light control device |
JPS63172743U (en) * | 1987-04-30 | 1988-11-09 | ||
WO1998052790A1 (en) * | 1997-05-21 | 1998-11-26 | Javier Bruna Brotons | Device for automatically switching on and off the lights of a vehicle and warning lights for road traffic |
JP2002299077A (en) * | 2001-03-30 | 2002-10-11 | Tempearl Ind Co Ltd | Energy saving monitoring system |
JP2011018467A (en) * | 2009-07-07 | 2011-01-27 | Iwasaki Electric Co Ltd | Tunnel lighting system |
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