The present invention, the illumination beam at least one light source emits (4) (3), at least one projection mask to generate a projection pattern (5), the focal length (8 defined with respect to the dental camera (1) ) at a focus optics to view the projected pattern in sharp focal plane (7) (6), is reflected by the object (2) as an object (2) projected pattern which is projected onto the observation beam (9) , and are obtained by using a sensor (10), a method and a camera (1) for the 3D measurement of the dental object (2). Objects (2) during the measurement of focusing optics (6) progressively between the focal length (8) a number of defined scanning position of sharp focal plane (7) to the camera (1) is controlled to be adjusted to the observation mask (12) is arranged in front of the beam path of the observation beam (9) of the sensor (10), to observe the mask (12) fixedly projecting mask (5) It is placed Te. Projection mask (5) is composed of a plurality of projection pattern elements include various color filters (13,20,21,22,23). Observation mask (12) consists of a plurality of observation mask elements include various color filters (14,30,31,32,33) as well.
.FIELD 1