Galactic model plays an important role in the microlensing field, not only for analyses of individual events but also statistics ensemble events. However, models used field varies, and some are unrealistically simplified. Here we tested three disc dynamic models, first is a simple standard that was widely this whereas other two consider radial dependence velocity dispersion, last model, asymmet...

A great number of intraocular lenses various models and manufacturers is present on the ophthalmic market. The difficulty lies in choosing a specific lens model for each eye. In this work, we compare characteristics some monofocal IOLs most often implanted Orenburg branch S. Fyodorov Eye Microsurgery Federal State Institution over past 5 years, as well results their implantation economic compon...

The performances of a compact infrared optical system using advanced pinhole optics for wide field applications are given. This concept is adapted from the classical Tisse design in order to fit with infrared issues. Despite a low light gathering efficiency and a low resolution in comparison with classical lenses, pinhole imagery provides a long depth of field and a wide angular field of view. ...

In recent years it has become possible to fabricate freeform optics using multi-axes ultraprecision machines. Unlike conventional process where a single diamond tool is used to machine each individual lens one at a time, this research demonstrates the development of an innovative diamond tool trajectory which allows the entire microlens array or diffractive lens to be machined in a single opera...

In computer aided celiac disease diagnosis, endoscopes with wide-angle lenses are deployed which induce significant lens distortions. This work investigates an approach to automatize the estimation of the lens distortion, without a previous camera calibration. Knowing the discriminative power of all sensible distortion configurations, the model parameters are estimated. As the achieved paramete...