JPH0381907A - Illuminating fixture for round form fluorescent lamp - Google Patents

Illuminating fixture for round form fluorescent lamp

Info

Publication number
JPH0381907A
JPH0381907A JP2137784A JP13778490A JPH0381907A JP H0381907 A JPH0381907 A JP H0381907A JP 2137784 A JP2137784 A JP 2137784A JP 13778490 A JP13778490 A JP 13778490A JP H0381907 A JPH0381907 A JP H0381907A
Authority
JP
Japan
Prior art keywords
photo
fluorescent lamp
leading plate
light
plate
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
JP2137784A
Other languages
Japanese (ja)
Inventor
Shigeaki Nanbu
Tadashi Murakami
Kozo Suzuki
Muneo Okada
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.)
Panasonic Electric Works Co Ltd
Tokyo Electric Power Company Holdings Inc
Original Assignee
Tokyo Electric Power Co Inc
Matsushita Electric Works Ltd
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 Tokyo Electric Power Co Inc, Matsushita Electric Works Ltd filed Critical Tokyo Electric Power Co Inc
Publication of JPH0381907A publication Critical patent/JPH0381907A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To lessen unevenness in the lightness of a light penetrative cover and also construct it thin by arranging a photo-leading plate, which leads the incident beam of light from the external end face to the center, in a position inside of a round form fluorescent lamp, and furnishing a diffusion part for random reflection of the incident light at the oversurface of this photo-leading plate.
CONSTITUTION: At the body 1 of a lighting fixture a mounting table is installed, and thereon a photo-leading plate 14 formed from clear acrylic resin in a dia. a little smaller than the inner dia. of a round form fluorescent lamp 7 is mounted in such an arrangement that the external end face of the plate 14 is mating in proximity with the inner side of the fluorescent lamp 7. This photo-leading plate 14 is formed circularly, and on its oversurface formed in a plane, a diffusion part 14a is formed by silk printing in such a concentrical striation that the spacing of stripes is narrower as approaching the center and that the width becomes wider toward the center. The beam of light emitted from the fluorescent lamp 7 and incident to the photo-leading plate 14 repeats all-reflection within the plate and is introduced to its center, during which the light is random reflected at the diffusion part 14a and major part are cast downward. As this diffusion part 14a is formed in striation, the whole surface of the photo-leading plate 14 is provided with substantially uniform brightness.
COPYRIGHT: (C)1991,JPO&Japio
JP2137784A 1989-05-31 1990-05-28 Illuminating fixture for round form fluorescent lamp Pending JPH0381907A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13842489 1989-05-31

Publications (1)

Publication Number Publication Date
JPH0381907A true JPH0381907A (en) 1991-04-08

Family

ID=15221645

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2137784A Pending JPH0381907A (en) 1989-05-31 1990-05-28 Illuminating fixture for round form fluorescent lamp

Country Status (1)

Country Link
JP (1) JPH0381907A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009295425A (en) * 2008-06-05 2009-12-17 Nec Lighting Ltd Luminaire
JP2010539648A (en) * 2007-09-12 2010-12-16 シーマン,ロジャー Light emitting and / or light receiving device
JP2012074216A (en) * 2010-09-28 2012-04-12 Sharp Corp Lighting system
WO2014181865A1 (en) 2013-05-10 2014-11-13 株式会社クラレ Lighting device
WO2014200096A1 (en) 2013-06-13 2014-12-18 株式会社クラレ Illumination apparatus
JP2015057791A (en) * 2014-11-20 2015-03-26 シャープ株式会社 Lighting device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010539648A (en) * 2007-09-12 2010-12-16 シーマン,ロジャー Light emitting and / or light receiving device
JP2009295425A (en) * 2008-06-05 2009-12-17 Nec Lighting Ltd Luminaire
JP2012074216A (en) * 2010-09-28 2012-04-12 Sharp Corp Lighting system
WO2014181865A1 (en) 2013-05-10 2014-11-13 株式会社クラレ Lighting device
KR20160008229A (en) 2013-05-10 2016-01-21 가부시키가이샤 구라레 Lighting device
WO2014200096A1 (en) 2013-06-13 2014-12-18 株式会社クラレ Illumination apparatus
KR20160013127A (en) 2013-06-13 2016-02-03 가부시키가이샤 구라레 Illumination apparatus
US9645300B2 (en) 2013-06-13 2017-05-09 Kuraray Co., Ltd. Lighting device
JP2015057791A (en) * 2014-11-20 2015-03-26 シャープ株式会社 Lighting device

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