Optical disc recording medium and method of manufacturing the same
AssigneesMemory-Tech Corporation, Optware Corporation
InventorsHideyoshi Horimai, Masaharu Kinoshita, Yoshinobu Tanaka, Yoshihiro Takatani
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Abstract
An optical disc recording medium of the present invention comprises a first substrate (11) having a physically pre-formatted surface; a reflective film (12) formed on the pre-formatted surface of the first substrate (11); a transparent layer (13) with a thickness of 50-430 μm formed on the reflective film (12); a second substrate (15) composed of transparent material and located at a distance of certain spacing from the transparent layer (13); and a recording layer (14) for hologram recording filled between the transparent layer (13) and the second substrate (15).
Claims16
An optical disc recording medium, comprising:
- a first substrate having a physically pre-formatted surface;
- a reflective film formed on said pre-formatted surface of said first substrate;
- a transparent layer with a thickness of 50-430 μm formed on said reflective film;
- a second substrate composed of transparent material and located at a distance of certain spacing from said transparent layer;
- and
- a recording layer for hologram recording filled between said transparent layer and said second substrate.
An optical disc recording medium, comprising:
- a transparent film with a thickness of 50-430 μm having a physically pre-formatted surface;
- a reflective film formed on said pre-formatted surface of said transparent film;
- a first substrate arranged to support said transparent film interposing said reflective film therebetween;
- a second substrate composed of transparent material and located at a distance of certain spacing from said transparent film;
- and
- a recording layer for hologram recording filled between said transparent layer and said second substrate.
A method of manufacturing an optical disc recording medium, comprising the steps of:
- forming embossed pits on a surface of a first substrate;
- forming a reflective film on said embossed-pits-formed surface of said first substrate;
- forming a transparent layer with a thickness of 50-430 μm on said reflective-film-formed surface of said first substrate;
- locating a transparent second substrate at a distance of certain spacing from said first substrate so as to interpose said transparent layer therebetween;
- and
- filling a recording material for hologram recording between said first substrate and said second substrate to form a recording layer.
A method of manufacturing an optical disc recording medium, comprising the steps of:
- forming embossed pits on a surface of a transparent film with a thickness of 50-430 μm;
- forming a reflective film on said embossed-pits-formed surface of said transparent film;
- adhering said transparent film on said first substrate interposing said reflective film therebetween;
- locating a transparent second substrate at a distance of certain spacing from said first substrate so as to interpose said transparent film therebetween;
- and
- filling a recording material for hologram recording between said first substrate and said second substrate to form a recording layer.
A method of manufacturing an optical disc recording medium, comprising the steps of:
- forming embossed pits on a surface of a first substrate;
- forming a reflective film on said embossed-pits-formed surface of said first substrate;
- fixing a transparent plate with a thickness of 50-430 μm on the upper surface of a holder, applying a liquid recording material on said transparent plate, and pressing a transparent second substrate against said recording material to form a recording layer composed of said recording material between said transparent plate and said second substrate, thus forming a triple-layered structure;
- and
- bonding said reflective-film-formed first substrate and said triple-layered structure together, locating said reflective film faced to said transparent plate.
Dependencies are inferred from the claim text.