how to make laser projector.. It is also important that your chosen whiteboard offers good enough visibility for the whole class to see it properly. Viewing angles and screen brightness are often serious issues in classrooms, as many still rely on projectors and front projection screens to display content. Front projection screens in classrooms can present consistent problems for teachers, primarily causing shadows, calibration issues and that??s not to mention the general care to be taken over projectors which are subjected to heavy use. With this, also comes other considerations, such as classroom lighting levels, projector settings, projector bulb life, screen brightness and viewing angles. These are things that need assessing in depth before purchasing an interactive front projection screen for a classroom.. IQProjector V2 is an Ultrashort focal laser projector. With laser as the light source, IQProjector V2 has a longer lifetime and vivid color. That contributes it a cost-effective choice.