Optical recording medium and method of producing the same
OwnerShinichiro Iimura, Hiroshi Ogawainventors
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Abstract
The present invention is directed to an optical recording medium (1) adapted so that at least a reflection film (3), and a protective film (4) are laminated in succession on a substrate (2), and light is irradiated from the protective film (4) side so that reproduction of information signals is carried out, wherein grooves (5) or emboss pits (6) corresponding to information signals are formed along tracks at the reflection film (3).
Claims31
An optical recording medium in which at least a reflection film and a protective film are laminated in succession on a substrate, and light is irradiated from the protective film side so that reproduction of information signals is carried out,
- wherein emboss pits corresponding to the information signals are formed along tracks at the reflection film.
An optical recording medium adapted so that at least a reflection film, a recording film and a protective film are laminated in succession on a substrate, and light is irradiated from the protective film side so that recording and/or reproduction of information signals are carried out,
- wherein grooves serving as guide groove are formed along tracks at the reflection film.
A method of producing an optical recording medium adapted so that at least a reflection film, and a protective film are laminated in succession on a substrate, and light is irradiated from the protective film side so that reproduction of information signals is carried out,
- wherein in forming the reflection film, emboss pits corresponding to the information signals are formed by press molding.
A method of producing an optical recording medium adapted so that at least a reflection film, a recording film and a protective film are laminated in succession on a substrate, and light is irradiated from the protective film side so that recording and/or reproduction of information signals are carried out,
- wherein in forming the reflection film, grooves serving as guide groove are formed along tracks by press molding.
Dependencies are inferred from the claim text.