Acta Optica Sinica, Volume. 28, Issue 5, 949(2008)
Position Tolerance Analysis for Wavefront Aberrations Correction of Human Eyes
The tolerance analysis of the compensating devices used to correct the aberrations of human eyes is important. Based on the exact measurements of three human eyes aberrations with Hartmann-Shack sensor, the differences of compensating effect of the high-order aberrations correcting devices and conventional low-order aberrations correcting devices are compared with lateral displacements and in-plane rotations. The position tolerance of the rotation is better than that of the translation, and the three subjects have similar rotation tolerance about 20° and quite different translation tolerance. The results suggest that the compensating effect depends on both the particular aberrations of each subject and the kind and the amount of misalignment. The bigger wavefront aberration is, the more unconspicuous correcting effect of high-order compensating devices is. For high-order compensating devices, different type of position change is with different tolerance, and rotation has a larger movable tolerance than displacement.
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Zhao Haoxing, Xu Bing. Position Tolerance Analysis for Wavefront Aberrations Correction of Human Eyes[J]. Acta Optica Sinica, 2008, 28(5): 949