Apparatus for volumetric 3d-printing a three-dimensional object by multi-color photopolymerization of a photocurable resin

An apparatus for volumetric 3d-printing a three-dimensional object by multi-color photopolymerization of a photocurable resin, which comprises:

• a working volume for receiving a photocurable resin,
• an irradiation device for irradiating a photocurable resin within the working volume with light of a first wavelength and light of a second wavelength, different from the first wavelength, wherein the light of the first wavelength and the light of the second wavelength intersect in at least one formation zone, wherein the irradiation device comprises:
• at least one first light source, wherein the at least one first light source is configured to generate a light beam of the light of the first wavelength;
• and
• a light sheet generator, wherein the light sheet generator is configured to process a light beam of the light of the first wavelength generated by the at least one first light source to generate at least three individual light sheets, particularly at least four individual light sheets, of the light of the first wavelength.