Self-ballasted lamp and lighting equipment

Lampe mit Vorschaltgerät und Beleuchtungsgerät

Lampe à lumière mixte et équipement d'éclairage

Abstract

A base body (12) having a base body portion (21) and a plurality of heat radiating fins (22) disposed on the circumference of the base body portion is provided. On one end side of the base body, a light-emitting module (13) having semiconductor light-emitting elements (43), and a globe (16) that covers the light-emitting module are provided. A cap (15) is provided on the other end side of the base body. A lighting circuit (17) is housed between the base body and the cap. The lamp total length from the globe (16) to the cap (15) is 70 to 120 mm, and the area of a surface of the base body (12) which is exposed to the outside per 1W of power charged to the light-emitting module is 20.5 to 24.4 cm 2 /W.

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Patent Citations (3)

    Publication numberPublication dateAssigneeTitle
    JP-2003059330-AFebruary 28, 2003Matsushita Electric Works Ltd, 松下電工株式会社Led luminaire
    WO-2008146694-A1December 04, 2008Sharp Kabushiki Kaisha照明装置
    WO-2009087897-A1July 16, 2009Toshiba Lighting & Technology Corporation, Kabushiki Kaisha ToshibaLed bulb and lighting apparatus

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    Publication numberPublication dateAssigneeTitle