| 摘要 |
PURPOSE: A light bulb device of a bulb type fluorescent lamp including a dimming switch is provided to easily perform desired brightness by using a slide type volume or a rotary type volume. CONSTITUTION: A light bulb device of a bulb type fluorescent lamp includes a top cover(10), a substrate(100), a cover base(20), a fluorescent lamp(30), and a dimming switch(40). A socket coupling part(11) in which a socket part(12) is coupled is formed in a top end part of the top cover. The top cover has a top cap shape. The substrate is installed inside the top cover. The substrate is connected to the socket part, receives an external power source, is controlled by a controller, and drives a bulb type fluorescent lamp. The substrate includes a control circuit for a dimming control. The cover base is mounted in a bottom surface of the top cover. A through hole(21) in which the fluorescent lamp is mounted is formed in a bottom part of the cover base. Both end parts of the fluorescent lamp are inserted through the through hole of the cover base. The fluorescent lamp is coupled in a lamp coupling part(101) of the substrate. The dimming switch is installed between the top cover and the cover base. The dimming switch is connected to a controller inside the substrate.
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