摘要:
The object of the present invention is to provide an optical recording medium which comprises a substrate, and a first information layer and a second information layer disposed on the substrate, and an intermediate layer disposed between the first information layer and the second information layer, wherein any one of recording and reproducing is performed in the first information layer and the second information layer by irradiating a laser beam from the first information layer side, the second information layer comprises a protective layer, a second dye layer which comprises an organic dye, an oxidized layer, and a reflective layer in this order from the laser beam irradiation side, and the oxidized layer comprises an oxide which is a material constituting the reflective layer.
摘要:
The present invention provides an optical recording material allows for obtaining excellent recording signal properties even at high-speed recording and is excellent in durability in both a single-sided single layer optical recording medium and a single-sided two-layer optical recording medium having a first recording layer and a second recording layer. The optical recording material contains a cyanine compound having a specific structure and a squarylium compound as dyes for optical recording layers.
摘要:
An optical recording medium, comprising a dye recording layer, wherein a recording mark portion is formed at the dye recording layer by use of a laser light having a wavelength of 640 nm to 680 nm, and a reflectance after recording with respect to the laser light at the recording mark portion is increased compared to a reflectance before recording.
摘要:
An electrochromic compound represented by the following General Formula (1). A-(CX2)n—B General Formula (1) In the formula, A is a monovalent binding group, B is a redox chromophore, X is a halogen atom, and n is an integer of 1 or more.
摘要:
Provided is an optical recording medium that comprises two layers of a first information recording layer and a second information recording layer; the first information recording layer and the second information recording layer are laminated through an intermediate layer; wherein the two layers are recorded and regenerated by action of laser light irradiated from the side of the first information recording layer, the second information recording layer comprises a light reflective layer, a dye recording layer, and an inorganic protective layer on a substrate, and the substrate comprises wobble convex portions on its surface, the inorganic protective layer has a thickness of 3 nm to 40 nm, the dye recording layer comprises a cyanine compound expressed by General Formula (I) and a squarylium compound expressed by General Formula (II):
摘要:
The present invention relates to an optical recording medium containing a first substrate, a first information layer, an intermediate layer, a second information layer and a second substrate in this order, wherein the first information layer contains a first recording layer disposed on the first substrate and the second information layer contains a reflective layer, a second recording layer containing an organic dye and a protective layer which are disposed on the second substrate in this order; and the second recording layer contains an organic dye which is at least one elected from the group consisting of the specified squarylium metal chelate compounds.
摘要:
An optical information recording medium containing a first information substrate including a first substrate having a guide groove thereon, a first recording layer including a dye, overlying the first substrate and a first reflective layer being a semi-transmittance layer, overlying the first recording layer, a second information substrate comprising, a second substrate having a guide groove thereon, a second recording layer comprising a dye, overlying the second substrate, a second reflective layer being a semi-transmittance layer, located overlying the second recording layer and a light transmittance protective layer overlying the second reflective layer and a transparent intermediate layer. Further, the following relationships (1) and (2) are satisfied: (1) 0.3≦nd/λ≦0.7, wherein n represents refractive index in the complex refractive index n-ik of the light transmittance protective layer, d represents a thickness thereof, and λ is at least one of a recording wavelength and a playback wavelength, (2) k≦0.05, wherein k represents absorption index of the light transmittance protective layer of the complex refractive index n-ik.
摘要:
An optical information recording medium includes a substrate with a wobble groove and/or pits being formed on one surface thereof, a colorant recording layer provided on the surface of the substrate, and a metallic reflection layer provided on the colorant recording layer, wherein the wobble groove has a track pitch in a range of 1.5 μm to 1.7 μm, and a half-amplitude level thereof in a range of 0.4 μm to 0.75 μm, and the colorant recording layer includes a specific phthalocyanine compound represented by formula (I) as defined in the specification, and a method of producing the optical information recording medium is proposed.
摘要:
An optical information recording medium includes a substrate with a wobble groove and/or pits being formed on one surface thereof, a colorant recording layer provided on the surface of the substrate, and a metallic reflection layer provided on the colorant recording layer, wherein the wobble groove has a track pitch in a range of 1.5 μm to 1.7 μm, and a half-amplitude level thereof in a range of 0.4 μm to 0.75 μm, and the colorant recording layer includes a specific phthalocyanine compound represented by formula (I) as defined in the specification, and a method of producing the optical information recording medium is proposed.
摘要:
An electrochromic device reversibly and controllably colored and decolored by electricity is provided. The electrochromic device is configured to control at least one of the following functions f1 and f2 based on at least one of an operating environment temperature of the electrochromic device, a continuous elapsed time of a colored state or a decolored state, and an illuminance around the electrochromic device: a function f1 of transiting to a colored state and/or limiting transition to a decolored state; and a function f2 of transiting to a decolored state and/or limiting transition to a colored state.