Classifications

• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
  • G03B21/00—Projectors or projection-type viewers; Accessories therefor
  • G03B21/54—Accessories
  • G03B21/56—Projection screens
  • G03B21/60—Projection screens characterised by the nature of the surface
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
  • G03B21/00—Projectors or projection-type viewers; Accessories therefor
  • G03B21/54—Accessories
  • G03B21/56—Projection screens
  • G03B21/60—Projection screens characterised by the nature of the surface
  • G03B21/62—Translucent screens

Definitions

• the present process proposes to respect the physiological parameters of the impressions of the visual perception making it possible to render a three-dimension of the image and to give it a chromatic dynamic, to restore intensities of different color by a much greater range of shade. obtained by light diffraction.
• the present method is to create superimposed multilayer structures of at least two different structures. A glossy layer generally in the background where the main image is formed and at least one translucent or transparent layer above the viewer side.
• the present process of this multilayer must also be at least on one of the embossed structures, have surface irregularities, for example in the form of a diamond or a repetitive volume pattern.
• the volume pattern obtained can be in the shape of a square, rectangle, honeycomb, or conical and the shapes side by side can be perfectly interlaced, joined, perfectly nested with each other.
• the present process is therefore in the field of cinema and slide screens, image projection, television, a process high definition image by multiplication of light components of the original image which diffracts, produced by different reflective layers, and sometimes having embossings on at least one of the layers. It is a light amplification process of image reflections produced by a screen with multilayer structures with repetitive relief, where the image is projected.
• the background layer of the screen where part of the main image is created, is bright, very reflective, and at least one other layer, structure, where another part of the light spectrum of the image is also formed. or transparent colorless.
• the light rays coming from the image projector diffract and partly reflect on the first surface layer and this on both sides of its structure, and also allow the light rays to pass from the background of the screen which is very luminescent and which returns the light rays on the surface layer a second time with slightly different angles of incidence, this due to the rugged terrain.
• the spectator perceives an image which is the addition of all these judicious diffraction effects, the overall perception of which is a high definition image.
• the weaker light components due to the fact of the light diffractions by the multiple structures are for physiological visual perception much better perceived, appear in three dimensions and suppress the phenomenon of crushing due to the too strong direct light reflection.
• Visual physiology prefers more complete information, therefore more numerous and less aggressive.
• Visual intensity is perceived by adding information from light components of the same order.
• the process conforms to the physiological needs of vision. This spectral decomposition of luminosity by natural filtering of form and structure, is clearly better perceived without fatigue by individuals and of much higher overall light intensity.
• Apparatus for carrying out the present process consists of at least a first structure, a silver crystal, mirror two meters high and five meters wide in glass or plexiglass, the surface of which is molded in relief, embossed in a small pattern. millimeter following diamonds with a depth of five millimeters, a height of eight millimeters and a width of three millimeters.
• This damaged mirror is coated with minus a second translucent or transparent structure, a thin glass 1 mm thick partially sandblasted or molded embossed.
• the two structures are held securely together by a rubber molding, the whole constituting a multi-layer screen, of luminous amplification of visual projection.
• the screen placed against a wall allows you to perceive high-definition images, a device that is not an exhaustive example.
• Another alternative embodiment is a screen of luminous amplifying fabric woven with metalloplastic wires of 0.37 millimeter flat section, very reflective aluminum metalloplastic wire constituting the rear part of the fabric. It is together with aluminum wire, woven at least one transparent wire 0.25 millimeters wide and 12 microns thick in polyester on the front side presenting the place of the fabric facing the spectator.
• This fabric thus formed by a person skilled in the art in the field of textiles, is then embossed by hot stamping giving this fabric the appearance of repetitive hilly relief.
• This fabric thus formed in accordance with the process has the properties of light diffraction and moreover allows sound to pass through the screen in cinema use. Indeed, this type of screen fabric absorbs approximately 5 decibels and this regularly over almost the entire audible frequency band, which makes it a very powerful and acoustically useful multilayer bright screen for the diffusion of sound.
• Another variant of the process in the field of computer or television screens is the application of a micro embossing with repetitive relief molded, engraved or sanded on the internal or front face of the tube or both front and rear, where the image is formed, the face which is then covered on its front part, on the viewer's side, with a translucent or transparent structure, an ultra thin embossed transparent plastic film a few microns thick, the whole is covered with a protective glass and optical effect by its thickness of 2 millimeters, which thus constitutes a glued multi-layer high-definition screen, non-exhaustive example of embodiment.

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Overhead Projectors And Projection Screens (AREA)
• Optical Elements Other Than Lenses (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=9551516

Family Applications (1)

Country Status (7)

Families Citing this family (6)

Family Cites Families (3)

• 1999
  • 1999-10-25 FR FR9913554A patent/FR2800176B1/fr not_active Expired - Fee Related
• 2000
  • 2000-10-24 CA CA002389045A patent/CA2389045A1/en not_active Abandoned
  • 2000-10-24 WO PCT/FR2000/002948 patent/WO2001031398A1/fr not_active Application Discontinuation
  • 2000-10-24 EP EP00971485A patent/EP1230581A1/de not_active Withdrawn
  • 2000-10-24 AU AU10332/01A patent/AU1033201A/en not_active Abandoned
  • 2000-10-24 JP JP2001533473A patent/JP2003513308A/ja active Pending
  • 2000-10-24 CN CN00814764A patent/CN1382267A/zh active Pending

Non-Patent Citations (1)

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