| 摘要 |
<p>Provided are a die machining method capable of transfer molding a highly precise optical element, and an optical element transferred from the die. When the B-axis is rotated by an actual working angle, a compensation formula (SQ) representing a correlation between the height (X) from the light axis and an error (Delta) is calculated. The compensation formula is fed back to the numerical control (NC) program of an XZB-axis ultra-precision lathe, and thereby, when the B-axis is rotated by an actual working angle, the error (Delta) can be reduced to zero by moving a Z-axis stage (5) and so forth when the B-axis is rotated.</p> |
