102 - Terminology
Cool-down A lamp cooling procedure continues to operate even after the power supply
has been switched off and the lamp extinguished. The cooling fan will begin
to operate when the lamp is extinguished, and button operations will no
longer be possible. This period is known as the cooling down period. The
amount of time required for the cooling down procedure will differ in accor-
dance with the surrounding temperature.
Contrast By strengthening or weakening the tone of the colors, it is possible to project
characters 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 mul-
tiple projectors in order to increase projection image brightness.
Theft-protection lock A theft-proof (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. The agency
for this product within Japan is listed below.
NANAYO SHOJI CO., LTD. Information & Communication Division
Nanayo Bldg. 2-55-7, Hamacho, Chuo-ku, Tokyo 103-0007
Tel: 03-3663-7787 Fax: 03-3669-2367
Synchronization(Sync) 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
projector. Aligning the signal phasing is known as synchronization. Projected
images will be subject to disturbance, blurring and horizontal noise if not syn-
chronized.
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
projector. Aligning the signal frequency is known as tracking. Projected
images will be subject to disturbance, blurring and horizontal noise if not syn-
chronized.
