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US 5,413,481 AGranted
Method and apparatus for manufacturing fitting members
AssigneeG. Krieg
InventorsThomas Goppel, Susanne Neipp
Life of this patent
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AssigneeG. Krieg
InventorsThomas Goppel, Susanne Neipp
Estimating the term…
For the manufacture of a fitting member, such as for a dental prosthesis, the invention proposes for the reception part receiving the same and in order to adapt to the remaining stump, a method and an apparatus in which an optical groove grating is repeatedly projected with a slight local offset onto the reception part and the photograph is used for calculating the fitting member. According to the invention the photograph of the optical groove grating projected onto the reception part takes place by means of a matrix camera for producing moire fringes and between the optical groove grating and the reception part there is an optical deflecting device for separating the illuminating beam path impinging through the groove grating and the output beam path emanating from the reception part and recorded by the camera, the camera being a matrix camera for producing moire fringes.
A method for producing a fitting member, the method comprising the steps of repeatedly projecting an optical groove grating in a slightly offset manner onto a reception part for the fitting member, photographing the reception part, and calculating the fitting member on the basis of the photographs, wherein the photographs of the optical groove grating projected onto the reception part are taken by a matrix camera for producing moire fringes.
An apparatus for manufacturing a fitting member, the apparatus comprising an optical groove grating and an illumination system for enabling repeated projection of the groove grating onto a reception part for the fitting member, and a camera for photographing lines of the optical groove grating projected onto the reception part, wherein an optical deflecting device is disposed between the optical groove grating and the reception part for separating an illuminating beam path impinging through the optical groove grating and an output beam path from the reception part and photographed by the camera, and wherein the camera is a matrix camera for producing moire fringes.
Dependencies are inferred from the claim text.