JPS54154996A - Illuminating device for traffic signal - Google Patents

Illuminating device for traffic signal

Info

Publication number
JPS54154996A
JPS54154996A JP6399178A JP6399178A JPS54154996A JP S54154996 A JPS54154996 A JP S54154996A JP 6399178 A JP6399178 A JP 6399178A JP 6399178 A JP6399178 A JP 6399178A JP S54154996 A JPS54154996 A JP S54154996A
Authority
JP
Japan
Prior art keywords
lamp
discharge lamp
life time
electrode type
wave shielding
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.)
Granted
Application number
JP6399178A
Other languages
Japanese (ja)
Other versions
JPS5838840B2 (en
Inventor
Toshiyuki Takeda
Hiroshi Takada
Jun Imai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP6399178A priority Critical patent/JPS5838840B2/en
Publication of JPS54154996A publication Critical patent/JPS54154996A/en
Publication of JPS5838840B2 publication Critical patent/JPS5838840B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Traffic Control Systems (AREA)

Abstract

PURPOSE: To prevent completely the leakage of the electric waves emitted outside the device without impairing the performance of the discharge lamp by enclosing the non-electrode type discharge lamp with the conductive reflector and the wave shielding substance.
CONSTITUTION: Semi-transparent lens body is colored in red, yellow, green or the like to color the white beam emitted from non-electrode type discharge lamp 4. Lamp 4 is located at the back of body 3 with the fluorescent substance emitting the white beam coated on the inner surface, and features higher efficiency and longer life time than the incandescent lamp but with generation of the high-frequency electromagnetic field. Then wave shielding substance 19 featuring both the conducting and light transmissible properties is provided in front of lamp 4, and furthermore reflector 15 made of the electric conductor and surrounding lamp 4 is provided linking to substrate 19. Thus, the electric waves can be prevented from leaking outside the device, securing a high efficiency and long life time of the discharge lamp as well as avoiding the fault on the radio wave.
COPYRIGHT: (C)1979,JPO&Japio
JP6399178A 1978-05-29 1978-05-29 Traffic signal lighting equipment Expired JPS5838840B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6399178A JPS5838840B2 (en) 1978-05-29 1978-05-29 Traffic signal lighting equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6399178A JPS5838840B2 (en) 1978-05-29 1978-05-29 Traffic signal lighting equipment

Publications (2)

Publication Number Publication Date
JPS54154996A true JPS54154996A (en) 1979-12-06
JPS5838840B2 JPS5838840B2 (en) 1983-08-25

Family

ID=13245246

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6399178A Expired JPS5838840B2 (en) 1978-05-29 1978-05-29 Traffic signal lighting equipment

Country Status (1)

Country Link
JP (1) JPS5838840B2 (en)

Also Published As

Publication number Publication date
JPS5838840B2 (en) 1983-08-25

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