| 摘要 |
<p>The device has diffracted partial beams of rays propagated in direction of a mirror (12). The mirror reflects the partial beams of rays in a direction of a combined radial-circular grating (11.1), so that the partial beams of rays propagate in a direction of another combined radial-circular grating (11.2). The latter combined radial-circular grating is adapted to diffract the partial beams of rays, so that the diffracted partial beams of rays propagate in a direction of a linear scanning grating (23.1) that superimposes the partial beams of rays.</p> |
