| 摘要 |
A microoptical matrix formed by a first optical element (1) necessary for the prim. purpose of the optical system is provided, the matrix being capable of creating retroreflection when illuminated. A second optical element (2) with a shape creating dispersion and focusing of the light is placed in front of the first optical element, so that reflections from the first element are diverted away from the laser beam. ELECTRONICS - PREFERRED FEATURES : The first optical element is a detector and the second element is a prism, raster or hologram. |
