| 摘要 |
PROBLEM TO BE SOLVED: To provide an improved device for mapping an optical element. SOLUTION: This device for mapping the optical element is provided with a light source 6, arranged to transmit a light beam toward the optical element; a beam separator 2, including a plurality of beam separating elements acting to separate the light beam into a plurality of corresponding light beam portions; a photodetector 10 operated to generate a light spot map, including a plurality of light spots corresponding to the plurality of beam separating elements; and an optical element characteristic computation device 12 operative to derive at least one characteristic of the optical element from the light spot map, and including an apparatus for identifying the beam separating element corresponding to an individual spot, based at least partly on information other than a place of the spot. COPYRIGHT: (C)2008,JPO&INPIT
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