| Barrel distortion |
Aberration with projectors where the margin lines of the image are convex. This is caused by aberrations of the lens. Opposite cushion distortion. |
| Blanking |
Shading a chart during a projection |
| Bluetooth |
New wireless data transmission technology. Different kind of components and of different manufacturers can be combined to wireless networks for the first time. |
| BNC |
A popular connector with video professionals which features a high loading capacity. Workstations have BNC cables with 5 connectors: one each for the three basic colours red, green and blue and one each for horizontal and vertical synch. |
| Brightness level (slide) |
The brightness of the halogen lamp can be adjusted. |
| Burn In |
"Burn in" means an effect where an image is still latent visible even when the plasma display is switched off. This effect occurs due to an uneven fading of the plasma cells, i.e., caused by the insertion of TV station logos. |
