Thermoplastic optical feature with high apex sharpness
US7236303B2 · kind B2 · utility
0Cited by
4References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2004 |
| Grant date | Jun 26, 2007 |
| Priority date | — |
| Expiry date | Oct 22, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24942
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of forming an element of an imaging device and the element are disclosed. The method includes providing a first layer and a second layer. The method also includes extruding the first layer with the second layer, where the second layer has a melt flow that is at least 10% greater than a melt flow of the second layer. Moreover, the method includes forming a plurality of optical elements over a surface of the second layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.