Device and method for forming lens
US8815129B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2010 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | May 18, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/0031
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In order to realize a device and a method each capable of forming a lens with high accuracy and low costs, a lens forming device of the present invention includes a metal mold, an insulating substrate, a stage, a power source, a switch, and a UV radiating device. Dielectric resin is supplied onto the insulating substrate and a transfer surface of the metal mold is pressed to the dielectric resin so as to transfer a lens shape to the dielectric resin. At that time, the power source applies a voltage on the metal mold to generate an electric field between the metal mold and the insulating substrate so that an electrostatic attraction causes the dielectric resin to be attracted toward the transfer surface of the metal mold while the top of the dielectric resin has a sharp cuspate shape. Consequently, bubbles are less likely to be invade between the transfer surface and the dielectric resin, allowing transferring a highly accurate lens shape to the dielectric resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.