Projector of Holopanoragrammes Carry-poster

From this other improvement also the Projector of Holopanoragrammes Carry-Poster, or Kiosk of Images, forming a unit complete and optimized to present thus under a great angle in pedestrian spaces in full light, a luminous, clear real image and with high contrast of this new hologram per reflection applied under a concave glazing of protection, with a source of light of restitution in the base of a surface on the ground minimal, an optical system and a horizontal black screen for this inalterable anti-reflecting device.

The initial idea of the specific style of this “magic lantern” from the laser, was contrast between the extreme smoothness of the photosensitive film, and the importance of the volume of holographic space.
Since, by the contribution of a poster to the back of the Projector, the conicity of Holopanoragramme is highlighted but always rises on a base forming partially the base of a sand glass.
The divergent beam of light goes up point of meeting of the cones until the reflectors of the higher part, and its luminous flow widens then in the crystalline hemicycle of Holopanoragramme to restore an immaterial object.
The unit remains capped of a glass-porch trapping the ambient reflections and sheltering the concavity in which the energy of this concentration of light emanates.
By its futuristic opening on the space time with its real image with 4 dimensions, this Projector of Holopanoragrammes Carry-Poster reveals a new prestigious line of urban furnishing, while finally bringing innovation among the many display panels, terminals, column and shelter of bus stop to the many times re-examined forms.

A patent protects this device using a horizontal screen absorbing not sealing the large field of vision thanks to the geometry from the specular surface of the holographic support.
Claim 1 of the European patent N° 0530313 was written in the following way :

1. Device for the observation, by one or more observers who may move on a predetermined observation plane in a predetermined observation zone, of at least one holographic image exposed in bright surroundings, comprising :

- a hologram having at least one concave specular surface turned towards the observation zone, the normal to wich at each point, as well as a straight generatrix of this specular surface passing through this point, are secant with the observation plane at non-right respective angles,

- a light source illuminating the hologram by a reconstruction beam in order to reconstruct, after diffraction by the hologram, the holographic image in the observation zone by at least one diffracted observation beam substantially parallel to the observation plane, and

- at least one dark object, located out of the respective optical paths of the said reconstruction beam and of the diffracted observation beam or beams and arranged so that its surface is reflected from the specular surface of the hologram by one or more reflected beams substantially coincident with the diffracted observation beam or beams.

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