| 摘要 |
A light bulb which uses light emitting diodes 2 encapsulated in a transparent material, which may be clear or coloured; wherein a bulb mounting portion 13 intended to enter the bulb receiving socket is formed from cast or moulded plastic. The same plastics material may be used to both encapsulate the LEDs and form the bulb mounting portion. A base unit 4 has a printed circuit board or hard wiring, to which the LEDs are electrically connected. A reflector may be positioned where the bulb mounting portion merges with the LED containing portion. The bulb has a conventional bulb shape and has electrical contacts 7,8 in the bulb mounting portion in the conventional positions making it suitable to be mounted in a conventional bulb socket. |
