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US 2003/0169671 A1Published application
Information recording medium and information recording/reproducing device
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsTetsuo Saimi, Akihiro Arai, Tohru Nakamura
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Abstract
An information recording medium 101 includes: a transparent substrate 109 having a first surface A and a second surface B opposite to the first surface A; reflectance reduction means 110 provided on the first surface A of the transparent substrate 109; and an information recording layer 120 provided on the second surface B of the transparent substrate 109.
Claims14
An information recording medium comprising:
- a transparent substrate having a first surface and a second surface opposite to the first surface;
- reflectance reduction means provided on the first surface of the transparent substrate;
- and
- an information recording layer provided on the second surface of the transparent substrate,
- wherein portions of light having entered the first surface at an incident angle in the range of 0° to a maximum possible incident angle, which are transmitted through the transparent substrate, are used for recording information to the information recording layer or reproducing information recorded on the information recording layer, and
- wherein the reflectance reduction means reduces a reflectance for the light which enters the first surface at the maximum possible incident angle and is reflected by the first surface.
3 more elements
Dependencies are inferred from the claim text.