Patent classifications
G03H1/20
Method and master for producing a volume hologram
A method for producing a volume hologram with at least one first area in a first color and at least one second area in a second color includes, providing a volume hologram layer made of a photopolymer; arranging a master with a surface structure on the volume hologram layer; exposing the master using coherent light, wherein light which is incident on at least one first partial area of the surface of the master is diffracted or reflected in the direction of the at least one first area of the volume hologram layer and light which is incident on at least one second partial area of the surface of the master is diffracted or reflected in the direction of the at least one second area of the volume hologram, and wherein the light diffracted or reflected by the first and second partial areas differs in at least one optical property.
Photosensitive Resin and Manufacturing Method Thereof
Various embodiments disclosed relate to photopolymerizable compositions that are suitable for making three-dimensional structures when exposed to laser light.
Photosensitive Resin and Manufacturing Method Thereof
Various embodiments disclosed relate to photopolymerizable compositions that are suitable for making three-dimensional structures when exposed to laser light.
Method for Holographic Mastering and Replication
A method for producing holograms with a multiplicity of holographic prescriptions from a single master is provided. A multiplicity of holographic substrates each containing a first hologram is stacked on a second holographic recording medium substrate. The first hologram is designed to diffract light from a first direction into a second direction. When expose to illumination from the first direction zero order and diffracted light from each first hologram interfere in the second holographic recording medium substrate forming a second hologram. The second hologram is then copied into a third holographic recording medium substrate to provide the final copy hologram.
Method for Holographic Mastering and Replication
A method for producing holograms with a multiplicity of holographic prescriptions from a single master is provided. A multiplicity of holographic substrates each containing a first hologram is stacked on a second holographic recording medium substrate. The first hologram is designed to diffract light from a first direction into a second direction. When expose to illumination from the first direction zero order and diffracted light from each first hologram interfere in the second holographic recording medium substrate forming a second hologram. The second hologram is then copied into a third holographic recording medium substrate to provide the final copy hologram.
Hologram Replicating Method and Hologram Replicating Device
The present application provides a replicating method and a replicating device of a transmission type holographic optical element capable of mass-replicating the transmission type holographic optical element by a continuous and economical process.
Hologram Replicating Method and Hologram Replicating Device
The present application provides a replicating method and a replicating device of a transmission type holographic optical element capable of mass-replicating the transmission type holographic optical element by a continuous and economical process.
Photosensitive resin and manufacturing method thereof
Various embodiments disclosed relate to photopolymerizable compositions that are suitable for making three-dimensional structures when exposed to laser light.
Photosensitive resin and manufacturing method thereof
Various embodiments disclosed relate to photopolymerizable compositions that are suitable for making three-dimensional structures when exposed to laser light.
Systems and Methods for High Volume Manufacturing of Waveguides
Systems and methods for recording holographic gratings in accordance with various embodiments of the invention are illustrated. One embodiment includes a holographic recording system including a first movable platform configured to support a first plurality of waveguide cells for exposure, at least one master grating, and at least one laser source configured to provide a set of recording beams by directing light towards the at least one master grating, wherein the first movable platform is translatable in predefined steps along at least one of two orthogonal directions, and wherein at each the predefined step at least one waveguide cell is positioned to be illuminated by at least one recording beam within the set of recording beams.