Layer thickness gradient control in multilayer polymeric bodies
US5389324A · kind A · utility
271Cited by
15References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1993 |
| Grant date | Feb 14, 1995 |
| Priority date | — |
| Expiry date | Jun 7, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2995/003
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Methods and apparatus for generating, and then precisely controlling, layer thickness gradients in multilayered polymeric reflective bodies are provided. The creation of such gradients is useful in tailoring multilayer bodies to reflect and/or transmit desired wavelengths of light. Both thermal and mechanical methods, as well as combinations thereof, are used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.