摘要:
An optical information storage medium includes a substrate and a multilayer polymeric film. The multilayer polymeric film has a first surface and an opposite second surface that extend the length of the multilayer polymeric film. The second surface is adhered to a surface of the substrate. The multilayer polymeric film includes a plurality of coextruded alternating polymeric active data storage layers and polymeric buffer layers.
摘要:
An optical recording medium protecting film which is a protecting film comprising a single transparent film made of a thermoplastic resin, having a retardation of no greater than 15 nm at a wavelength of 550 nm and a K value of no greater than 40 nm at 550 nm, having a glass transition temperature of 120° C. or higher and a water absorption of no greater than 1 wt %. |R(550)|≦15 nm (1) |K(550)|≦40 nm (2) (the K value being calculated by K=[nz−(nx+ny)/2]×d {where nx, ny and nz are the three-dimensional refractive indexes of the transparent film in the x-axis, y-axis and z-axis directions, respectively, and d is the thickness of the transparent film}). Also, an optical recording medium having a data recording layer and the above-mentioned protecting film on a substrate, wherein light is incident from the protecting film side.
摘要:
An optical device, such as an optical storage medium, comprises a layer of material in the solid state that has a refractive index that is switchable between at least two stable values by applied light. A reflector is spaced apart from the layer of material by a solid spacer layer transmissive to light.
摘要:
An optical information storage medium includes a multilayer film that includes a plurality of extruded alternating active data storage layers and buffer layers, which separate the active data storage layers. The active data storage layers and buffer layers have thicknesses that allow the active data storage layers to be writable by non-linear or threshold writing processes to define data voxels within the active data storage layers that are readable by an optical reading device.
摘要:
An optical disc has a support base and at least one information-retrieval layer formed over the support base. The information-retrieval layer is transparent and thinner than the support base. The information-retrieval layer exhibits variation in birefringence within ±20 nmpp (nano meter peak to peak) under double-pass measurements during one rotation of the optical disc.
摘要:
An optical information storage medium includes a substrate and a multilayer polymeric film. The multilayer polymeric film has a first surface and an opposite second surface that extend the length of the multilayer polymeric film. The second surface is adhered to a surface of the substrate. The multilayer polymeric film includes a plurality of coextruded alternating polymeric active data storage layers and polymeric buffer layers.
摘要:
An optical information storage medium includes a substrate and a multilayer polymeric film. The multilayer polymeric film has a first surface and an opposite second surface that extend the length of the multilayer polymeric film. The second surface is adhered to a surface of the substrate. The multilayer polymeric film includes a plurality of coextruded alternating polymeric active data storage layers and polymeric buffer layers.
摘要:
A storage media having a radial deviation of less than or equal to about 1.15 degrees at a radius of 55 mm is disclosed. In one embodiment, the storage media comprises: a plastic substrate, an optical layer and a data storage layer disposed therebetween. A reflective layer is disposed between the data storage layer and the substrate.
摘要:
A storage media having a radial deviation of less than or equal to about 1.15 degrees at a radius of 55 mm is disclosed. In one embodiment, the storage media comprises: a plastic substrate, an optical layer and a data storage layer disposed therebetween. A reflective layer is disposed between the data storage layer and the substrate.
摘要:
The object of the present invention is to provide an optical information recording medium which has tolerance to warping. To achieve the object above, an optical information recording medium 100 of the present invention includes at least one information recording layer 103 on a main surface of a substrate 101 and a light-transmitting layer 106. The substrate 101 includes a clamp area 105 and an information recording area 104 in accordance with the information recording layer 103. In the light-transmitting layer 106, the average thickness of a second area 106b corresponding to the clamp area 105 is thinner than the average thickness of a first area 106a corresponding to the information recording area 104.