Multi-source optical transmitter and photonic visualization device

A photonic visualization device, comprising:

• a screen;
• and
• an optical transmitter comprising:
• a substrate of semiconductor material;
• and
• a plurality of semiconductor optical sources suitable to supply optical signals having respective wavelengths defining base colors for the formation of colored images in said visualization device, the sources being arranged according to a matrix pattern on said substrate.

A multi-source optical transmitter for a visualization device, the transmitter comprising:

• a substrate of semiconductor material;
• a plurality of semiconductor optical sources suitable to supply optical signals having respective wavelengths defining base colors for the formation of colored images in said visualization device, the sources being arranged according to a matrix pattern on one face of said substrate;
• and
• arranged on said face of the substrate, a grid of walls defining a number of cavities equal to the number of optical sources included in the matrix of sources, each of said cavities being substantially centered and aligned around a respective optical source,
• wherein said walls include sides transverse to the substrate which are inclined compared to said one face of said substrate.