Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Thales

Francois-Henri Luc

A system for projecting images, configured to implement a sequential type colour projection. The system includes an emissive matrix display device; and a wavelength conversion coloration wheel. The coloration wheel includes a transparent zone, and a first photoluminescent zone configured to absorb a blue light beam and to emit in response a beam including a green component and a red component. The system further includes a selection device for blocking alternately the green component or the red component, including at least one dichroic mirror.

Colour projector with spectral conversion coloration wheel

The invention relates to an image projection system () configured to implement colour projection comprising: a first matrix device () with an emissive display for transmitting a first and a second colour component of a colour image, wherein each pixel is adapted to transmit at the wavelengths associated with the first colour component and the wavelengths associated with the second colour component; and a second matrix device () with an emissive display for transmitting a third colour component () of the colour image. The colour image projector according to the invention offers both good energy efficiency and a small footprint.

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Paris la Defense, France

Francois-Henri Luc