Color wheel having a bonding apparatus
US6598977B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 8, 2002 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Aug 8, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/006
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A color wheel having a bonding apparatus consists of a carrier and a filter set. The carrier is a circular disk and has a first surface and a second surface opposite to each other. The first surface has a bulged rim formed thereon. The carrier has a plurality of apertures formed thereon between the bulged rim and the perimeter thereof. The filter set is mounted onto the first surface of the carrier. Adhesive is injected and filled into the apertures from the second surface such that the filter set is bonded to the first surface of the carrier to form the color wheel of the invention. The color wheel thus made has evenly coated adhesive without increasing the thickness thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.