Silicon Graphics 1600SW Guide D'utilisation page 22

EN-12 Chapter 1
90°
90°
Optimum Viewing Angle for the Flat Panel Monitor
Figure 1-5
• Although the monitor screen has a special anti-glare coating, you
should place the monitor at a 90° angle to light sources, including
windows, to minimize glare and reflections. Adjust the monitor
tilt to minimize reflections.
• Keep the monitor screen clean. See "Cleaning and General Care
of the Flat Panel Monitor" on page EN-23.