Manufacturing method for resin part of vehicular lamp
US7018576B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2002 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Jul 20, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2011/0083
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A resin part of a vehicular lamp and a method for producing such a part in which a metallic vapor deposition coating for forming a reflective surface is formed directly on a surface of a resin body part without applying an undercoating layer. The body of the resin part is produced by injecting molten resin into a cavity of a molding die in which a heat insulating layer is formed on a portion of the cavity surface corresponding to the reflective surface. A metallic vapor deposition coating is applied directly to the portions of the body of the resin part which were in contact with the heat insulating layer during injection molding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.