[go: up one dir, main page]

JPS6481162A - Curved fluorescent lamp - Google Patents

Curved fluorescent lamp

Info

Publication number
JPS6481162A
JPS6481162A JP23778187A JP23778187A JPS6481162A JP S6481162 A JPS6481162 A JP S6481162A JP 23778187 A JP23778187 A JP 23778187A JP 23778187 A JP23778187 A JP 23778187A JP S6481162 A JPS6481162 A JP S6481162A
Authority
JP
Japan
Prior art keywords
bulb
depressed
fluorescent lamp
section
tilted
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
JP23778187A
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 JP23778187A priority Critical patent/JPS6481162A/en
Publication of JPS6481162A publication Critical patent/JPS6481162A/en
Pending legal-status Critical Current

Links

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE:To increase the illuminance of a place directly below a curved fluorescent lamp with both ends thereof provided with electrodes installed by sealing and with the inner surface thereof provided with a phosphor film by making the shape of the lamp depressed in approximately a same plane, with the longer side of its cross section tilted with respect to said plane, thereby increasing the amount of light in the tilted direction. CONSTITUTION:A fluorescent lamp consists of an approximately annularly curved bulb 10, electrodes 2 provided on both ends of said bulb 10, a phosphor film 4 provided on the inner wall of the bulb 10, and a cap 3 bridged at the portion of the electrode 2. With this constitution, the cross section of the bulb 10 is made, unlike usually employed circular cross section, of a depressed circular shape with its axis passing the longer side made not parallel but tilted with respect to the plane of the curvature of the bulb 10. When installing the bulb, the depressed flat surface of the bulb 10 is made to face upward or downward to widen itself in respective directions so that light intensity directed downward is increased with the synergistic effect of a reflecting cover arranged above the bulb.
JP23778187A 1987-09-22 1987-09-22 Curved fluorescent lamp Pending JPS6481162A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23778187A JPS6481162A (en) 1987-09-22 1987-09-22 Curved fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23778187A JPS6481162A (en) 1987-09-22 1987-09-22 Curved fluorescent lamp

Publications (1)

Publication Number Publication Date
JPS6481162A true JPS6481162A (en) 1989-03-27

Family

ID=17020337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23778187A Pending JPS6481162A (en) 1987-09-22 1987-09-22 Curved fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS6481162A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003083895A1 (en) * 2002-03-29 2003-10-09 Matsushita Electric Industrial Co., Ltd. Light emitting tube and low-pressure mercury lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003083895A1 (en) * 2002-03-29 2003-10-09 Matsushita Electric Industrial Co., Ltd. Light emitting tube and low-pressure mercury lamp
US7298088B2 (en) 2002-03-29 2007-11-20 Matsushita Electric Industrial Co., Ltd. Arc tube and low-pressure mercury lamp

Similar Documents

Publication Publication Date Title
US3721818A (en) Ceiling mounted luminaire and light-transmitting enclosure therefor
US6027231A (en) Luminaire assembly
TW324054B (en) External electrode type fluorescent lamp and illumination unit
CA2169594A1 (en) Ceiling Mounted Wallwash Light Fixture
EP0191264A3 (en) Non-blinding device for large-area lighting fixtures
ES473950A1 (en) Luminaires
GB1493424A (en) Lamps
US3265883A (en) Luminaire
DE3867760D1 (en) LUMINOUS, EU3 + ACTIVATED SILICATE, LUMINAIRE WITH SUCH A SILICATE AND LOW PRESSURE MERCURY VAPOR DISCHARGE LAMP WITH SUCH A SHIELD.
JPS6481162A (en) Curved fluorescent lamp
US4833575A (en) Brightness equalizing light filter system
EP0222115A3 (en) Ceiling lighting fixture
CN210088540U (en) LED strip lamp
GB1408955A (en) Illumination apparatus
GB1337330A (en) Lighting fitting
JPH049687Y2 (en)
KR840000626Y1 (en) Fluorescent tube with circline lantern
DE3683574D1 (en) LIGHTING DEVICE IN A PROJECTION COPIER.
FR2404165A1 (en) Screen for reducing glare from fluorescent tube - has oblique bars to reflect light impinging on outer edges
KR910005209Y1 (en) Ceiling Fluorescent Light Fixture
JPS6022495Y2 (en) lighting equipment
GB843627A (en) Improvements in and relating to electric fluorescent lighting units
RU1835477C (en) Lamp having transformable optic system
KR880003204Y1 (en) Lighting
US1663657A (en) Lighting fixture