Philips 107S Manuale d'uso - Pagina 19

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Glossary

CE Mark

CE mark is displayed on products per EMC and LV ( low Voltage Device ) directives in compliance with

European Community safety, EMI and EMS requirements and is compulsory on products for sale in the

European Community.

Color temperature

A way of describing the color of a radiating source in terms of the temperature (in degrees Kelvin) of a black

body radiating with the same dominant frequency as the source.

Most Philips monitors offer the possibility of setting the color temperature to any desired value.

Contrast

The ratio between the brightness of the brightest and darkest parts of a picture. The darkest part of a picture

is set by the brightness of the unexcited phosphor, which is governed by the degree with which ambient light

is reflected. Contrast is therefore reduced in conditions of high ambient light levels. Black Matrix tubes reflect

less ambient light so exhibit higher contrast than other tubes.

Convergence error

Bean misalignment causing one or more of the three beams passing through the wrong aperture in the

shadow mask and striking a phosphor dot in the wrong triad.

Convergence error is expressed in mm often at three well-defined points on the screen, designated A, B and

C (see figure ). Also known as misconvergence.

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