JPS538909A - Signal - Google Patents
SignalInfo
- Publication number
- JPS538909A JPS538909A JP8234376A JP8234376A JPS538909A JP S538909 A JPS538909 A JP S538909A JP 8234376 A JP8234376 A JP 8234376A JP 8234376 A JP8234376 A JP 8234376A JP S538909 A JPS538909 A JP S538909A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- lamp
- neighttime
- voltage given
- lowering voltage
- 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
- Audible And Visible Signals (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Traffic Control Systems (AREA)
Abstract
PURPOSE: To lengthen life of a lamp by lowering voltage given to the lamp of a signal in the neighttime.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8234376A JPS538909A (en) | 1976-07-09 | 1976-07-09 | Signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8234376A JPS538909A (en) | 1976-07-09 | 1976-07-09 | Signal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS538909A true JPS538909A (en) | 1978-01-26 |
Family
ID=13771910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8234376A Pending JPS538909A (en) | 1976-07-09 | 1976-07-09 | Signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS538909A (en) |
-
1976
- 1976-07-09 JP JP8234376A patent/JPS538909A/en active Pending
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