| 摘要 |
1472187 Electroluminescence AMP Inc 5 June 1974 [25 June 1973] 24855/74 Heading C4S [Also in Division H1] In a LED assembly the emitting face of the diode 16 is connected to a narrow lead 18 carried on a transparent insulating sheet 10 with a further lead 30 connected to the rear face, and a lens 26 is mounted on the sheet 10 on the side opposite to the diode. The diode connections are preferably soldered. In one embodiment, as shown, the leads are etched or plated on a clear flexible sheet 10 of plastics and include a ring portion 40 on to which a drop of resin 42 is deposited to encapsulate the diode 16. A reflective surface is formed around the diode by moulding a pallet 44 of magnesium oxide filled resin over it. The lens 26 and a backing member 46, which may be of glass or plastics, are then applied leaving protruding leads 12, 14 on the sheet 10. In other arrangements, the reflective surface is formed directly on the backing member inner recess wall (Fig. 4, not shown) and the circular lead portion is omitted, or the reflector is provided as a flat disc integral with the lead for the diode rear face (Figs. 1, 2, not shown). Diagnostic panel applications are disclosed. |
