IP Library › Granted Patent US 9,161,828
Granted Patent B2
US 9,161,828 · App. 12/454,482 · Granted Oct 20, 2015

Apparatus for light-curing a dental object

Inventors: Bruno Senn (Buchs, CH); Wolfgang Plank (Rankweil, AT); Gottfried Rohner (Altstätten, CH)
Assignee: Ivoclar Vivadent AG
A61C19/004G01B11/026G01J1/4228G01N21/55G01J2001/4252G01N2201/062
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 9,161,828
App. No.
12/454,482
Granted
Oct 20, 2015
Kind
B2
Abstract

The invention relates to an apparatus for irradiating an object, in particular for light-curing a dental object by means of a first radiation, the apparatus comprising at least one radiation source for emitting the first radiation, the apparatus further comprising at least one radiation sensor for measuring at least a second radiation, and the apparatus further comprising a housing. The second radiation is the first radiation reelected by the object.

Claims (23)

1. Apparatus for light-curing a dental object by means of a first radiation, the apparatus comprising:

a housing;

at least one radiation source mounted on the housing for emitting the first radiation;

at least one radiation sensor mounted on the housing for measuring at least a second radiation, wherein the second radiation is the first radiation reflected by the object;

wherein the second radiation is measured and compared to a reference value;

wherein the apparatus comprises an output device for outputting perceptible information based on at least one measured value from the at least one radiation sensor;

wherein the intensity and duration of the first radiation is controlled based on the measured value; and

wherein if the reference value is met or exceeded, an output signal immediately signals that the radiation source is situated at an optimum position with respect to the dental object.

2. Apparatus as claimed in claim 1 , wherein the radiation source is preferably formed by at least one laser diode or light-emitting diode LED, each LED having at least one LED-chip.

3. Apparatus as claimed in claim 1 , wherein the radiation source emits a first radiation having a wavelength of 320 nm to 750 nm.

4. Apparatus as claimed in claim 1 , wherein the radiation sensor is sensitive in a wavelength range of the first radiation emitted by the radiation source.

5. Apparatus as claimed in claim 1 , wherein at least one of the radiation sensors is an image sensor, by means of which at least one picture of the object can be taken.

6. Apparatus as claimed in claim 1 , wherein one radiation sensor is centrally located, and a plurality of other radiation sensors are provided that are arranged in spaced apart relationship in the same plane and/or in angles relative to the one radiation sensor.

7. Apparatus as claimed in claim 1 , wherein the output device is embodied as a display that is arranged on the apparatus, and/or the output device outputs the information in a visual and/or acoustical and/or sensible manner.

8. Apparatus as claimed in claim 1 , wherein the apparatus determines the distance to the reflection surface from the second radiation.

9. Method for curing an object, the method being characterized by the following steps:

irradiating the dental object with a radiation source comprising high-energy light for curing a dental filling material;

detecting a radiation that is reflected;

measuring the radiation that is reflected;

comparing the measured radiation to a reference value;

detecting a relative position of the radiation source with respect to the dental object based on the measured light; and

controlling the amount of radiation that is radiated from the radiation source; and

wherein if the reference value is met or exceeded, an output signal immediately signals that the radiation source is situated at an optimum position with respect to the dental object.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 19, 2009
From: SENN, BRUNO; PLANK, WOLFGANG; ROHNER, GOTTFRIED
To: IVOCLAR VIVADENT AG
Reel/Frame 022760/0979 →
Priority Claims (1)
DE 10 2008 031 094 · Jul 1, 2008 · national
Continuity (1)
Related Publication 20100003633A1 · Jan 7, 2010