@misc{Ma_Lefei_Flexible_2025,
 author={Ma, Lefei and Xiang, Huazhong and Zhang, Xin and Cheng, Hui and Zheng, Zexi and Chen, Jiabi and Wang, Cheng and Zhang, Dawei and Zhuang, Songlin},
 contributor={Urbańczyk, Wacław. Redakcja},
 identifier={DOI: 10.37190/oa/195988},
 year={2025},
 rights={Wszystkie prawa zastrzeżone (Copyright)},
 description={Optica Applicata, Vol. 55, 2025, nr 1, s. 19-31},
 description={Optica Applicata is an international journal, published in a non-periodical form in the years 1971-1973 and quarterly since 1973. From the beginning of the year 2008, Optica Applicata is an Open Access journal available online via the Internet, with free access to the full text of articles serving the best interests of the scientific community. The journal is abstracted and indexed in: Chemical Abstracts, Compendex, Current Contents, Inspec, Referativnyj Zhurnal, SCI Expanded, Scopus, Ulrich’s Periodicals Directory},
 description={http://opticaapplicata.pwr.edu.pl/},
 publisher={Oficyna Wydawnicza Politechniki Wrocławskiej},
 language={eng},
 abstract={This study addresses the critical issue of optical power distribution in progressive addition lenses (PALs). We introduce a novel approach by defining the addition vertex power curve along the meridian line as a trigonometric function. Four distinct conic equations (ellipse, hyperbola, parabola, and circle) are proposed to extend power distribution evenly across the lens surface. An offset parameter is introduced for controlling viewing area widths. The elliptical equations offer the best results for larger fixed focus areas, while circular equations excel for smaller areas. This personalized method caters to individual patient needs, providing optimized PAL designs.},
 type={artykuł},
 title={Flexible design of progressive addition lenses for effective sizing of viewing zones using ellipse, hyperbola, parabola, and circle parametric equations},
 keywords={optyka, power, progressive addition lenses, eccentricity, astigmatism, optimization},
}