| 摘要 |
The device is provided with a data support (3), comprising an optically structurable reflection layer (4) on an inner surface of a concave spherical surface and an optical device with a laser light source (1) and a deflecting unit (2), arranged in the centre of the spherical surface, for the laser beam (5) which may be focussed on the surface. According to the invention, the data support (3) and the optical device are fixed within the device and the deflection unit (2) comprises defection means for the two-dimensional projection of the laser beam (5). The working speed and the functional security can thus be considerably increased. |
