Patent ID: 11872746
Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
Field: Other special machines (Mechanical engineering)
Classification: CPC B  C | IPC B  C

Claim 3:
4. The method according to claim 1, wherein said liquid photoresponsive material is used, and the method comprises the steps of
a. providing an optically transparent vessel which defines a build region,
b. filling the build region with said liquid photoresponsive material, such that after filling the liquid photoresponsive material is in contact with a wall of the optically transparent vessel,
c. computing one or more sequences of spatially modulated light patterns of one or more radiation wavelengths;
d. setting either the build region or a projection device irradiating said patterns of curing light into a rotational motion;
e. concurrently irradiating the build region with one or more synchronized spatially modulated light patterns to alter selectively the material phase of the photoresponsive material in order to form an object;
f. in the case of a formation of a multi-material three-dimensional object, removing an uncured light-reactive material from the build region, filling the build region with another light-reactive material, and repeating the above steps.