The first ARC lamps were developed in’09 by Sir Humphrey Davy. These lamps were carbonic arch lamps functioning with one carbon baguettes fixed at each of the two polls of a battery and creating through their touch a white incandescent light. If these baguettes were separated and put at a distance of 10 cm they would create a luminous strong white light arch. These principal is what stays at the base of the projector lamps present nowadays.
Posts Tagged ‘lighting’
Useful Projector Lamp Advices
11-04-09
The most important factor that needs to be considered when buying a projector lamp is the resolution. For office application like the PowerPoint presentations, a XGA (1024×768) resolution in usually sufficient. For multimedia applications, the image aspect should be 16:9 specific to the movie display. In this class of projectors fit those with 854×480 (480p), 1280×720 (720p) and 1920×1080 (1080i) resolutions. The price is proportional with resolution and that is why a full HD compatible projector can reach or even go above the amount of 300.