JPS6460902A - Rear lighting apparatus - Google Patents

Rear lighting apparatus

Info

Publication number
JPS6460902A
JPS6460902A JP21764887A JP21764887A JPS6460902A JP S6460902 A JPS6460902 A JP S6460902A JP 21764887 A JP21764887 A JP 21764887A JP 21764887 A JP21764887 A JP 21764887A JP S6460902 A JPS6460902 A JP S6460902A
Authority
JP
Japan
Prior art keywords
fluorescent lamp
luminance
facing distance
reflecting plate
lamp
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
Application number
JP21764887A
Other languages
Japanese (ja)
Inventor
Hitoshi Imamura
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP21764887A priority Critical patent/JPS6460902A/en
Publication of JPS6460902A publication Critical patent/JPS6460902A/en
Pending legal-status Critical Current

Links

Landscapes

  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE: To reduce leak current and luminance drop, and enhance lamp efficiency by setting the proximity facing distance between a fluorescent lamp and the reflecting surface of a reflecting plate proximatly facing the fluorescent lamp within the specified region. CONSTITUTION: The proximity facing distance A between a fluorescent lamp 13 and a reflecting plate 11 is set to either one of 1.5 mm or more but 6 mm or less. When the proximity facing distance A between the fluorescent lamp 13 and the reflecting plate 11 is gradually decreased than 1.5 mm, the amount of leak of high frequency current from the fluorescent lamp 13 to the reflecting plate 11 is increased, luminance on the lamp bulb surface is decreased, light diffusion plate surface average luminance which is the average luminance on the top surface of a light diffusion plate 12 is substantially decreased. When the proximity facing distance A between the fluorescent lamp 13 and the reflecting plate 11 is gradually increased than 1.5 mm, the amount of leak of high frequency current is gradually decreased, luminance on the lamp bulb surface is made almost constant at luminance ratio of 100% without drop, but the average luminance on the light diffusion plate 12 is substantially decreased in reverse proportion to increase in the proximity facing distance A.
JP21764887A 1987-08-31 1987-08-31 Rear lighting apparatus Pending JPS6460902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21764887A JPS6460902A (en) 1987-08-31 1987-08-31 Rear lighting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21764887A JPS6460902A (en) 1987-08-31 1987-08-31 Rear lighting apparatus

Publications (1)

Publication Number Publication Date
JPS6460902A true JPS6460902A (en) 1989-03-08

Family

ID=16707551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21764887A Pending JPS6460902A (en) 1987-08-31 1987-08-31 Rear lighting apparatus

Country Status (1)

Country Link
JP (1) JPS6460902A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10967678B2 (en) 2014-01-16 2021-04-06 Bridgestone Americas Tire Operations, Llc Tire with laminate and method of making same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10967678B2 (en) 2014-01-16 2021-04-06 Bridgestone Americas Tire Operations, Llc Tire with laminate and method of making same

Similar Documents

Publication Publication Date Title
CA2089543A1 (en) Lighting apparatus
DE3850738D1 (en) Glow cathode fluorescent discharge lamp filled with low pressure rare gas.
JPS6460902A (en) Rear lighting apparatus
JPS6411203A (en) Lighting device
JPS6445003A (en) Panel lighting appliance
JPS64515A (en) Illuminating device for liquid crystal display device
EP0222115A3 (en) Ceiling lighting fixture
JPS6445002A (en) Panel lighting appliance
HK1003347A1 (en) Compact fluorescent light bulb
JPS5244511A (en) Illumination light source for facsimile
JPS52100775A (en) Fluorescent lamp
JPS5475879A (en) Illuminator
JPS5346181A (en) Bulb type fluorescent discharge lamp
ES286202U (en) Anti-glare fog lamps
DE3854103T2 (en) Low-pressure arc discharge lamp with increased surface brightness.
JPS5394472A (en) Cover for lighting fixture
JPS6482451A (en) Lighting fixture
JPS5310568A (en) Fluorescent lamp incorporating hig-pressure mercury vapor
JPS6484593A (en) Lighting method for rare gas luminescent lamp
JPS5361179A (en) Fluorescent discharge lamp
AU1752488A (en) High intensity discharge lamp of the one side sealed type capable of compensating for the change of luminous efficiency caused by its different lighting angles and manufacturing method of the same
JPS5244113A (en) Facsimile illumination system
JPS55137660A (en) Fluorescent lamp
JPS5310569A (en) Fluorescent lamp incorporating hig-pressure mercury vapor
JPS534385A (en) Incandescent lamp