92 - Terminology
Contrast By strengthening or weakening the tone of the colors, it is possible to project char-
acters and pictures more clearly and attain a softer tint. This is known as contrast
adjustment.
Stack projection Refers to the simultaneous duplicate projection of images with the use of multiple
projectors in order to increase projection image brightness.
Theft-protection lock A theft-proof cable (available on the open market) is passed through the holes on
the projector case to secure it to a desk or column. These holes support the Micro-
Saver Security System manufactuered by Kensington Inc.
Tracking Outputs computer signals at a pre-determined frequency. The image will not be
projected clearly unless this frequency is aligned with the frequency of the projec-
tor. Aligning the signal frequency is known as tracking. Projected images will be
subject to distrubance, blurring and horizontal noise if not synchronized.
