Back to results
US 2012/0070798 A1Published application
Light protection shield for light delivery system
OwnerNeil Teitelbauminventor
Life of this patent
Estimating the term…
Abstract
A dental shield for lessening unwanted hazardous reflections of light in a wavelength band between 400 nm and 500 nm. The dental shield is similar to a traditional shield used on a hand held light delivery device, however the shield is antireflective coated on one or both sides to protect the non-user of the shield; the patient, so that harmful reflections into the patient's eyes can be lessened. The filter prevents at least 98% of UV or blue light from being reflected.
Claims5
A dental instrument for delivering light within a first wavelength band so as to cure a curable material responsive to the first wavelength band of light, comprising:
- a handle and a light emitting port for emitting the first wavelength band of light;
- and, a substantially transparent eye protection shield adapted to be coupled to the dental instrument as a filter for blocking at least 95% of light emitted by the dental instrument, and, wherein the substantially transparent eye protection shield has an antireflective coating on at least one side thereof for preventing at least 98% of light in the first wavelength band emitted from the light emitting port incident on the substantially transparent eye protection shield from being reflected into a patient's eyes.
Dependencies are inferred from the claim text.