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Microlenses array made with AZ4562 photoresist for stereoscopic acquisition

In this paper is presented a fabrication process for obtaining refractive microlenses arrays with high reproducibility and low cost. This process was specifically optimized for the AZ4562 photoresist. Functional prototypes of microlenses arrays with dimensions in the range of 30 m, 4.9 mm and 5 m for width, length and thickness, respectively, were fabricated and tested. The pre-thermal reflow spacing between ...

Fabrication of AZ4562 refractive microlenses array for light enhancement on opt...

This paper presents the fabrication of an array of high aspect ratio photoresist based refractive microlenses (ML) using photolithography and thermal reflow. First, and in order to evaluate and predict the MLs optical properties and physical dimensions, finite element analysis was done. These simulations helped to design the super high resolution chrome on soda lime glass photomask as well as the parameters for...

Integrated approach of hydrogeomorphology and GIS mapping to the evaluation of ...

Obesidade Infantil, Actividade Física e Sedentarismo em crianças do 1ºciclo do ...

During last years we’ve been assisting to a significant increase on the indexes of prevalence of childhood obesity, particularly in developed countries, conducting, in some cases, to epidemic proportions. Concerning this fact, the term “Disease of Civilization” associated to Obesity is clearly indicative of a dramatic situation. With the aim of searching the occurrence of obesity and over-weight in children in ...

NDI of Interfaces in Coating Systems Using Digital Interferometry

A Lepra no Estado de S. Paulo: (Notas endemiologicas)