Dental light filter
OwnerGilbert J. Rossinventor
Life of this patent
Estimating the term…
Abstract
A light-filtering apparatus is provided for attachment to a dental lamp. The apparatus includes a filter that blocks out light having a 350 to 550 nanometer wavelength. A spring-loaded roller is configured to carry the filter. A second roller may also be provided. A window-like frame is attached to a center of rotation of either the spring-loaded roller or the second roller. A tab is attached to the filter and is configured to place the filter in front of the dental lamp when the tab is pulled by a user. Essentially, the apparatus functions in a manner similar to a window shade for alternately blocking out and allowing light to shine on either a composite resin or another light-curable material that is being placed in a dental patient's mouth.
Claims18
A light-filtering apparatus for attachment to a dental lamp, said apparatus comprising:
- a. a filter that selectively blocks out an undesired effect of a wavelength of light for curing a dental material;
- b. a spring-loaded roller carrying the filter;
- c. a support structure attached to the roller;
- and
- d. means attached to the filter and configured to place the filter in front of the
- dental lamp when the means is operated by a user;
- whereby contamination which may occur from direct human contact is prevented.
A light-filtering apparatus for attachment to a dental lamp, said apparatus comprising:
- a. a filter that blocks out light having a 350 to 550 nanometer wavelength;
- b. a spring-loaded roller carrying the filter;
- c. a window-like frame attached to the roller;
- and
- d. a tab attached to the filter and configured to place the filter in front of the dental lamp when the tab is pulled by a user.
A light-filtering apparatus for attachment to a dental lamp, said apparatus comprising:
- a. a filter that blocks out light having a 400 to 500 nanometer wavelength;
- b. a spring-loaded roller holding one end of the filter, said spring-loaded roller having a center of rotation;
- c. a second roller secured to the spring-loaded roller and configured so that another end of the filter passes thereover;
- d. a window-like frame attached to the second roller;
- and
- e. a tab attached to the other end of the filter and configured to place the filter in front of the dental lamp when the tab is pulled by a user.
Dependencies are inferred from the claim text.