| Additive colour mixture |
An ordinary colour mixture process in tube monitors and data/video projectors. When mixing red, green and blue light components with the same saturation, white will appear. The signal transmission usually happens splitted into an RGB signal via shielded cable. |
| AFS (slide) |
Selective Autofocus. Corrects blurring fast and automatically. (Disengageable in a number of devices). |
| AGP-Bus |
Acronym for "Accelerated Graphics Port". Along with ISA, EISA, Microchannel, LocalBus and PCI another port/Bus in the PC area. It makes graphics faster and more realistic. The AGP-bus is only suitable for Graphic cards. |
| ALIS |
"Alternate Lighting of Surfaces". A technology for Plasma Displays to improve the image quality by doubling the lines |
| ANSI-Lumen |
Unit of measurement for the brightness of LCD projectors based on ANSI (American National Standards Institute). An area of 1 sqm on a screen is divided into 9 equally sized rectangles. The mathematical average of the light intensity in the centre of each area equals the ANSI lumens value. |
| Anti Jam System |
Prevents jamming or damaging of slides in the slide duct. To avoid any damage the slide transport is disengaged and the cooling fan contiunues to run. |
| Aperture (slide) |
The aperture is a measurement for the size of the opening of the lens. This size is alterable in small steps. The higher the aperture value the less light gets into the camera. |
| Artefakt |
Failure in a digital signal evolving from compression or digitalisation. Visible as image errors, aliasing, colour blocks or colour flickering, or in sound signals ambient noise such as chirping and clicking. |
| AutoSetup/AutoSynch |
The projector recognises the input source and automatically adjusts itself. |
| Autotimer (slide) |
With this function presentations can automatically run by defining times for cross-fading, i.e., in steps of seconds from 1 - 60 seconds. |
