Light beam hardening apparatus for curing material
US6695614B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2001 |
| Grant date | Feb 24, 2004 |
| Priority date | — |
| Expiry date | Mar 23, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C2204/002
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A light beam hardening apparatus is provided for hardening a material, such as dental material, exposed to light emitted by the light beam hardening apparatus. The light beam hardening apparatus includes a semi-conductor light emitting source operable to emit light in the visible light spectral range of a light strength of at least 200 mW/cm2, a base receptacle for supporting the semi-conductor light emitting source, and a heat conducting connection for conducting heat from the semi-conductor light emitting source to the base receptacle. The semi-conductor light emitting source includes a plurality of light emitting chips or light emitting diodes (LED). The base receptacle includes a plurality of cradles each for supporting therein a respective one of the light emitting chips.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.