| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens system designing method for calculating a high order aberration by using an accurate aberration coefficient in a lens system that is rotation symmetrical relative to an optical axis. SOLUTION: The lens system designing method is characterized by calculating a high order aberration by expressing the high order aberration coefficient of the lens system that is rotation symmetrical relative to an optical axis, as a polynomial using three suffixes and expressing the three suffixes as the powers of corresponding rotation invariants. COPYRIGHT: (C)2008,JPO&INPIT
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