| 摘要 |
PCT No. PCT/GB89/00369 Sec. 371 Date Dec. 1, 1989 Sec. 102(e) Date Dec. 1, 1989 PCT Filed Apr. 11, 1989 PCT Pub. No. WO89/09910 PCT Pub. Date Oct. 19, 1989.The assembly comprises a light-emitting diode (28) and associated circuit components (38, R1-R4) mounted on a printed circuit board (26) all mounted within a housing (10) formed with securement means such as a screw thread (14) for mounting the assembly in a panel (18) with the led (28) visible from the opposite side of the panel. The circuit components form means for converting a mains voltage at input leads (30) to a low voltage for driving the led, preferably in the form of an i.c. rectifier bridge (38) and a plurality of volgage-dropping resistors (R1-R4). |
