| 摘要 |
In an optical card, a card substrate (30; 212; 312) has its rigidity which is sufficient to handle the card substrate independently. The card substrate has a first side (30a; 212a; 312a) which serves as a reading side upon which reading light is incident. An optical-data recording section (70; 270; 370) includes a light-reflective pattern (42; 214; 314). The optical-data recording section is arranged on one of the first and second sides of the card substrate. Optical data incident upon the optical-data recording section toward the reading side of the card substrate is recorded by the optical-data recording section. A shielding layer (34; 216; 316) is arranged on one of the first and second sides of the card substrate, for shielding the optical-data recording section from a viewer's field of view. The shielding layer has its transmission characteristic with respect to the reading light, which is sufficient to shield light within a visual range and to enable reading of the optical-data recording section. |
