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KMID : 1159320220240020155
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Korean Journal of Vision Science
2022 Volume.24 No. 2 p.155 ~ p.163
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Analysis on Chromatic Aberration of the Gullstrand Schematic Eye through 3D Simulation
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Koo Bon-Yeop
Lee Myoung-Hee
Kim Young-Chul
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Abstract
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Purpose : The chromatic aberrations were theoretically calculated with the Gullstrand schematic eye, confirmed through 3D simulation, and two results were compared.
Methods : The theoretical chromatic aberrations were calculated by Mathematica 12.3.1 (Wolfram Research, USA), and the 3D modelling of the Gullstrand schematic eye was achieved by Ansys SPEOS Ver. 2012 (ANSYS Inc., USA). The longitudinal and transverse chromatic aberrations were measured in yellow (��? =586.700 ?? ), blue (�偉� =486.100 ??), and red (��? =656.300 ?? ) rays of the visible ray wavelength region.
Results : In both theoretically calculated and simulated methods, the focal length through the schematic eye was reduced in accordance with the incident ray height increased as, the wavelength decreased. As the center to the periphery of the schematic eye progressed, the longitudinal chromatic aberration decreased, but the transverse chromatic aberration was shown to increase.
Conclusion : The chromatic aberrations identified by theoretically calculated and simulated methods showed almost similar trends, whereas a very slight difference was found. To identify the various characteristics of chromatic aberrations, it is believed that follow-up studies reflecting the detailed schematic eye modelling of parameters, such as accommodation or refractive errors in the model will be necessary.
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KEYWORD
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3D simulation, Chromatic aberration, Focal length, Gullstrand schematic eye
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