Responding to the outbreak of respiratory disease caused by coronavirus that has been detected worldwide, there is a need for an innovative solution which will be an ad hoc solution ameliorating the situation. I propose a respiratory mask, having the respiratory tube equipped with UVC LED string. This arrangement will guarantee that air particles flowing through the tube will be exposed to high level of UVC radiation, both in...

ABSTRACT

In modern scientific and industrial laser applications, inter-alignment of multiple optical devices is frequently a basic requirement to meet a certain specification and performance.

However, the designed optical system combining mechanical elements, lasers and optical sights in various wavelengths frequently deviates from specified goals due to real life imperfections and effects. These may include mechanical tolerance...