| 摘要 |
An optical system is disclosed which utilizes a pair of binary diffraction optic lenses (40,42) to reprofile the intensity of an input light beam (30) across its width. Both binary diffraction optic lenses have a plurality of segments (40a-40j,42a-42j). Depending on the shape of a desired intensity profile (50) of the output beam, at least some of the segments of the first binary diffraction optic lens either diverge (40e) or converge (40a) a portion of a light beam and as needed deflect the same portion of the beam. The second binary diffraction optic lens (42), which is located downstream of the first binary diffraction optic lens, has an equal number of segments as the first binary diffraction optic lens. Each segment of the second binary diffraction optic lens receives the light beam from a respective segment of the first binary diffraction optic lens and collimates the light beam. <IMAGE> |
