An aircraft cabin assembly is depicted and described having a cabin wall, which surrounds a cabin interior space and has a wall surface facing the cabin interior space, and having a light source, which is provided in order to emit light onto the wall surface. The problem of providing an aircraft cabin assembly which, irrespective of the light outside of the aircraft cabin assembly, as effectively as possible gives a passenger in the cabin interior space the impression that the cabin interior space is larger than it actually is, is solved in that the wall surface has a holographic image of an object and in that the light source is designed to emit the kind of light onto the wall surface that allows the holographic image to be seen as a three-dimensional image of the object which is the subject of the holographic image.

The subject matter described herein includes a curved VPH grating with tilted fringes and spectrographs, both retroreflective and transmissive, that use such gratings. A VPH grating according to the subject matter described herein includes a first curved surface for receiving light to be diffracted. The grating includes an interior region having tilted fringes to diffract light that passes through the first surface. The grating further includes a second curved surface bounding the interior region on a side opposite the first surface and for passing light diffracted by the fringes.

A main object of the present invention is to provide a method of producing a volume hologram laminate which can regenerate a hologram image in an arbitrary wavelength by a simple process. To attain the object, the present invention provides a method of producing a volume hologram laminate using a volume hologram forming substrate which comprises: a substrate, a volume hologram layer formed on the substrate and containing a photopolymerizable material, a resin layer, formed on the substrate so as to contact to the volume hologram layer, containing a resin and a polymerizable compound, characterized in that the producing method comprises processes of: a hologram recording process to record a volume hologram to the volume hologram layer, a substance transit process of transiting the polymerizable compound to the volume hologram layer, and an after-treatment process of polymerizing the polymerizable compound.

A main object of the present invention is to provide a method of producing a volume hologram laminate which can regenerate a hologram image in an arbitrary wavelength by a simple process. To attain the object, the present invention provides a method of producing a volume hologram laminate using a volume hologram forming substrate which comprises: a substrate, a volume hologram layer formed on the substrate and containing a photopolymerizable material, a resin layer, formed on the substrate so as to contact to the volume hologram layer, containing a resin and a polymerizable compound, characterized in that the producing method comprises processes of: a hologram recording process to record a volume hologram to the volume hologram layer, a substance transit process of transiting the polymerizable compound to the volume hologram layer, and an after-treatment process of polymerizing the polymerizable compound.

A method for producing a cured product for a holographic recording medium by curing a composition for a holographic recording medium, the composition containing a compound (a) having an isocyanate group and a compound (b) having an isocyanate-reactive functional group. The curing reaction includes a curing step A in which the composition is cured at a temperature lower than 35 C., and the remaining rate of unreacted isocyanate groups after the curing step A is 10% or less of the isocyanate groups in the composition for a holographic recording medium before the curing reaction.

A method for producing a cured product for a holographic recording medium by curing a composition for a holographic recording medium, the composition containing a compound (a) having an isocyanate group and a compound (b) having an isocyanate-reactive functional group. The curing reaction includes a curing step A in which the composition is cured at a temperature lower than 35 C., and the remaining rate of unreacted isocyanate groups after the curing step A is 10% or less of the isocyanate groups in the composition for a holographic recording medium before the curing reaction.

A device for continuously replicating a hologram has a coating module to coat a liquid photopolymer onto a first carrier film, a lamination module to apply a second carrier film to the first carrier film coated with the photopolymer to obtain a photopolymer composite including a liquid photopolymer layer between two carrier films, an exposure module having a light source, and a master element with a master hologram to be replicated, and a fixing module to cure the replicated hologram in the photopolymer composite. The master element is axially rotatably mounted, and the exposure module is designed to bring the photopolymer composite in optical contact with the master element, while the light source exposes the master hologram to obtain a replicated hologram in a region of the photopolymer composite.

An OSC material may include a grating structure for use in waveguide applications. A method of patterning the OSC material to create the grating structure may include forming a hard mask over the OSC layer and etching the OSC layer through an opening in the hard mask. Furthermore, an improved design of a grating light valve device may include a reflective backplane, an array of micro-ribbons disposed on the reflective backplane, and a metasurface structure positioned beneath the array of micro-ribbons. A multiple stage process may include generating a broad spectrum of light from a laser architecture, filtering and multiplexing the wavelengths of light using an image optimization module, and incoherently averaging the speckle patterns across the various wavelengths using a spatial light modulator architecture.

An OSC material may include a grating structure for use in waveguide applications. A method of patterning the OSC material to create the grating structure may include forming a hard mask over the OSC layer and etching the OSC layer through an opening in the hard mask. Furthermore, an improved design of a grating light valve device may include a reflective backplane, an array of micro-ribbons disposed on the reflective backplane, and a metasurface structure positioned beneath the array of micro-ribbons. A multiple stage process may include generating a broad spectrum of light from a laser architecture, filtering and multiplexing the wavelengths of light using an image optimization module, and incoherently averaging the speckle patterns across the various wavelengths using a spatial light modulator architecture.