Integral filter support and shutter stop for UV curing system
US6881964B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 25, 2002 |
| Grant date | Apr 19, 2005 |
| Priority date | — |
| Expiry date | Apr 9, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2011/0083
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A UV spot curing lamp assembly comprises an integral filter support and shutter stop mechanism. The assembly includes a UV lamp and a light guide spaced therefrom for receiving filtered light from the lamp and for directing light through the light guide to a selected target or work site for curing materials thereat. A filter plate in the form of a borosilicate glass, having a selected thickness for the particular application, is disposed in relatively close proximity to the entrance surface of the light guide. A movable shutter plate, having an opening therethrough, is disposed between the filter and the light guide entrance surface. The shutter is movable from a first position wherein the opening is in registry with the light guide entrance surface to receive light from the lamp to a second position wherein a solid portion of the shutter plate blocks light from being received by the light guide entrance surface. Effective cooling of the lamp assembly is provided by a fan by which forced air is drawn over the lamp and the integral filter support and shutter stop, and by an internal mounting system configured to direct the drawn air for effective convective heat dissipation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.