| 摘要 |
The invention concerns a method of marking graphic patterns on the face ( 20 ), called usable, bearing data ( 2000, 2001 ) of an optical medium ( 2 ) comprising the production of said medium ( 200 ) of transparent material, the selective deposit of a first material ( 203 ) with reflective property on the usable face over an area in correlation with the graphic patterns, the uniform deposit of a second material ( 201 ) with reflective property and the deposit of a layer of protective varnish ( 202 ). The first ( 203 ) and second ( 201 ) materials have different colors making it possible to discern, by contrast effect, the areas covered by the first layer from the adjacent uncovered areas, when the usable face ( 20 ) is lighted by a light source (la). The invention also concerns optical media ( 2 ), CD or DVD, produced by this method.
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