| 摘要 |
A device for exactly determining the colour of a dental prosthesis to be applied, or of the material to be used in dental pluggings, so as to make it perfectly identical to the colour of the patient's teeth. Comprising a light source (1), which sends light rays over a monochromator (2), which, by means of an optical switcher or chopper (3), separates the monochromatic light rays into at least two parallel circuits (4, 4a, 5, 5a), the one (4, 4a) including a housing or cell (6) for at least one of the patient's teeth (9), the other, (5, 5a), comprising a reference cell (7), which includes a white-coloured reference sample (28). Said circuits head up at a device (8) that detects and compares the rays coming from cell (7) and those that have passed through cell (6) and the tooth or teeth (9), providing a sequence of signals that are applied to a detector (8), which are then duly amplified and applied to a digital-analogical convertor (12), which is hooked up to a data processor or computer (10), which provides the coded identification data on the colour as identified. |
