Process and apparatus for taking a medical cast

Details Process and apparatus for taking a medical cast Process and apparatus for taking a medical cast

1988-02-12

1990-08-28

Swiatek, Robert P.

Dentistry

Method or material for testing, treating, restoring, or...

433229, 356376, A61C 500

Patent

active

049521497

ABSTRACT:
A method and apparatus for taking impressions of a portion of the body which utilizes the projection of a grid of sinusoidal profile onto the body portion of which the impression is to be taken. The projections are phase-shifted and resulting images are memorized and from the memorized images, the variations in intensity resulting from the phase-shift at each given point can be ascertained to enable the configuration of the region to be calculated.

REFERENCES:
patent: 3665097 (1972-05-01), Macovski
patent: 4184175 (1980-01-01), Mullane, Jr.
patent: 4197855 (1980-04-01), Lewin
patent: 4324546 (1982-04-01), Heitlinger et al.
patent: 4443706 (1984-04-01), Di Matteo et al.
patent: 4575805 (1986-03-01), Moermann et al.
patent: 4611288 (1986-09-01), Duret et al.
patent: 4657394 (1987-04-01), Halioua
patent: 4742237 (1988-05-01), Ozawa
patent: 4837732 (1989-06-01), Brandestiai et al.

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