| V.24 |
See RS 232. |
| Variable focal lens |
The projected image diagonal depends on the distance between the projector and screen. A lens with variable focal width (270 - 340 mm) prevents annoying blue or yellow frames. |
| Vertical frequency |
Indicates, how many frames per second can be displayed (refresh rate, in Hz). |
| VESA M 1 |
A new standard connector at PCs, monitors, plasma displays and digital projectors. It was developed by the VESA "Video Electronics Standard Association" to enable the Plug&Play connection of different devices. The VESA M 1 connector not only allows the transmittance of digital and analogue image signals from the PC to the display gadget, it is also used for the connection of USB gadgets, i.e., a USB mouse or Firewire/IEEE 1394 signals. Additionally, there is also a supply voltage available where the devices connected at the VESA M 1 port can be supplied with voltage (low voltage devices with a small demand). There are three different VESA M 1 standards in total: - VESA M 1 - A to transfer pure analogue signals (30+4); - VESA M 1 - D to transfer pure digital signals (30); - VESA M 1 - A/D to transfer analogue and digital signals (30+4). |
| VGA |
Graphic standard for PCs with a maximum resolution of 640 x 480 pixels. |
| Viewing angle |
The viewing angle is directly connected to the luminance factor. The higher the luminance factor the more limited is the viewing angle. The viewing angle is determined by where from the centerline (0 degree) the luminance factor has decreased by half . |
| Viewing field |
Equals to twice the viewing angle. |
