| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a discriminating mark, which can discriminate a kind and calculate a usage with a sensor. <P>SOLUTION: This thin film structural body comprises a layer part including a luminous material (A), a reflecting material (B1) and/or a reflecting material (B2). In this thin film structural body, the luminous material (A) is one, which emits an electromagnetic wave L2 with a wave length λ2 (λ2 is the same one as λ1 or different from λ1) through the irradiation of the electromagnetic wave L1 with the wave length λ1. The reflecting material (B1) reflects an electromagnetic wave L3 and is made of a material transmittable to both the electromagnetic wave L1 and the electromagnetic wave L2. The reflecting material (B2) reflects the electromagnetic wave L3 and is made of a material non-transmittable to both the electromagnetic wave L1 and the electromagnetic wave L2. When the layer part includes the reflecting material (B2), the included reflecting material (B2) intercepts neither the electromagnetic wave L1 irradiating over the luminous material (A) nor the electromagnetic wave L2 emitting from the luminous material (A). <P>COPYRIGHT: (C)2007,JPO&INPIT |
