Lamp apparatus for use in optical communication and a process for producing the same
US6483623B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 30, 1998 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Nov 30, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/12041
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Leadframe stock 12 with frame portions 10 on which leadframes 1A and 1B are supported by means of support bridges 11A and 11B, and concave reflector mirror stock 14 with frame portions 16 on which concave reflector mirror 7 is supported by means of support bridges 17 and which are provided with a glossy plate are made by blanking or etching metal sheets and press forming which is applied to make the concave reflector mirror stock 14; the two stocks are made integral by joining their respective frame portions; the essential parts of the stocks including an LED chip and the concave reflector mirror 7 are molded with light-transmissive resin 2 such that they are completely buried in the resin; the support bridges 11A, 11B and 17 are then cut off to sever the individual frame portions to produce a reflecting LED lamp apparatus that is rigid, highly resistant to heat and commercially available at low cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.