27 citations
3 papers
physics.optics2020★ 3 cited
General formula to design a freeform singlet free of spherical aberration and astigmatism : Comment
Juan Camilo Valencia-Estrada, Jorge García-Márquez
In their article -Appl. Opt. 58, 1010_1015 (2019)- González-Acuña et al claimed:"an analytical closed-form formula for the design of freeform lenses free of spherical aberration an…
physics.optics2019★ 27 cited
Freeform geometrical optics I: Principles
Juan Camilo Valencia-Estrada, Jorge Garcia-Marquez
Lens design uses a calculation of the lens' surfaces that permit to obtain an image from a given object. A set of general rules and laws permits to calculate the essential points o…
physics.optics2019★ 7 cited
On-axis diffraction-limited design of bi-parabolic singlet lenses
Juan Camilo Valencia-Estrada, Jorge García-Márquez
A lens limited by diffraction and having two parabolic surfaces is presented. The knowledge of the following parameters: object distance, relative refractive index, lens thickness,…