The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 12, 2001
Filed:
Mar. 10, 2000
Other;
Abstract
A dental comparator scope for comparing a dental shade to a natural tooth. The scope comprises an L-shape body which includes a sight applying to the tooth and a handle for holding the scope, and a cartridge with a plurality of dental shades in it. Two identical optical channels are mounted, one inside of the sight and another inside of the handle. The channels include lenses and polychromatic light sources, preferable white LEDs. A mirror is placed in a point where optical axes of the channels are crossing. A split image of the shade and the tooth is observed through an eyepiece. The shades in the cartridge are driven by a motor when a button on the body is pressed by finger. The motor, light sources and adjuvant electronics are powered by a battery which is placed in the handle. The cartridge is snapped to the handle in a steady position. According to yet another embodiment, the cartridge can be shifted toward and backward the tooth and different zones of the shade can be compared with the correspondent zones of the tooth.