Trade-off asymmetric profile for extended-depth-of-focus ocular lens
We explore the possibility of extending the depth of focus of an imaging lens with anasymmetric quartic phase-mask, while keeping the aberration within a relatively low level. Thiscan be intended, for instance, for ophthalmic applications, where no further digital processingcan take place, relying i...
| Authors: | ; ; |
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| Format: | Article |
| Publication date: | 2022 |
| Country: | España |
| Institution: | Universitat Politècnica de Catalunya (UPC) |
| Repository: | UPCommons. Portal del coneixement obert de la UPC |
| Language: | English |
| OAI Identifier: | oai:upcommons.upc.edu:2117/369601 |
| Online Access: | https://hdl.handle.net/2117/369601 https://dx.doi.org/10.3390/photonics9020119 |
| Access Level: | Open access |
| Keyword: | Ophthalmic lenses Intraocular lenses Vision disorders Extended depth of focus Depth of field Phase mask Ophthalmic lens Intraocular lens Range of vision Presbyopia compensation Lents oftàlmiques Lents intraoculars Trastorns de la visió Àrees temàtiques de la UPC::Ciències de la visió |
| Summary: | We explore the possibility of extending the depth of focus of an imaging lens with anasymmetric quartic phase-mask, while keeping the aberration within a relatively low level. Thiscan be intended, for instance, for ophthalmic applications, where no further digital processingcan take place, relying instead on the patient’s neural adaptation to their own aberrations. Wepropose a computational optimization method to derive the design-strength factor of the asymmetricprofile. The numerical and experimental results are shown. The optical experiment was conductedby means of a modulo-2pphase-only spatial light modulator. The proposed combination of theasymmetric mask and the lens can be implemented in a single refractive element. An exemplarycase of an extended-depth-of focus intraocular lens based on the proposed element is described anddemonstrated with a numerical experiment. |
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