Light hardening apparatus particularly for a dental practice
US6866506B2 · kind B2 · utility
5Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 2002 |
| Grant date | Mar 15, 2005 |
| Priority date | — |
| Expiry date | Sep 19, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C19/004
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A light hardening apparatus particularly suitable for effecting the hardening of dental restoration material is provided and includes two semiconductor light sources cooperable with a light-guiding element for guiding the light from the semiconductor light source to the dental restoration material to effect the hardening thereof. The two semiconductor light sources have an emission spectrum with at least two maximums of which one of the maximums lies at approximately 420 nm and the other maximum lies at approximately 470 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.