Epson EH-TW5200 Brosur & Spesifikasi - Halaman 5
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A New Specifi cation
Projectors have always had their brightness rated only for white light. However,
they may have very different colour brightness levels. The Colour Brightness
specifi cation provides a new way for buyers to compare the holistic performance
(white and colour light brightness) of projectors to make a more informed
decision.
Epson
Colour Brightness 2600 Lumens
White Brightness 2600 Lumens
What is Colour Brightness?
As the term implies, Colour Brightness is a new international standard that
states a projector's colour light output in lumens. It measures the brightness of a
projector's red, green and blue light.
These are the measurements to look for:
Colour Brightness - Colour Light Output
White Brightness - White Light Output
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* Compared against similarly-priced leading 1-chip DLP® business and education projectors based on NPD data from July 2011 through
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EPSON 3LCD TECHNOLOGY – FOR BRIGHT, FAITHFUL COLOURS
3LCD projectors offer brighter and more accurate colours as they produce
different shades and hues by fi ltering, then mixing beams of the three primary
colours (red, green and blue).
In a 3LCD projector, white light is fi rst split into the three beams of primary
colours. Each beam is then fi ltered through its own LCD that will give each
individual pixel of the image its exact brightness for each colour. The colour
beams are then perfectly recombined in a prism before being projected out as a
complete image.
•
An independent test by projector review media ProjectorCentral.com in 2009 of about 800 projectors found that on average,
3LCD projectors use 25% less power than single-chip projectors.
Competitor
Colour Brightness 750 Lumens
White Brightness 2700 Lumens
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SEE VIBRANT, REALISTIC COLOURS
WITH HIGH COLOUR BRIGHTNESS.
Why Does Colour Brightness Matter?
Even if a projector has high white brightness, it's Colour Brightness could be as
low as 1/3 of its white light brightness specifi cation. With a projector that has high
Colour Brightness, you'll see vibrant, realistic colours; but if Colour Brightness
is low, colours can look dull and dark, skin tones can be reproduced poorly and
important details can be lost.
Epson
How to Find a Projector's Colour Brightness?
1. Look for separate Colour Brightness and white brightness specifi cation.
2. Projectors with similar white brightness levels can have vastly different and
signifi cantly lower Colour Brightness levels.
3. Many manufacturers may not want you to know their projectors are only 1/3
as bright when measuring colour.
White
2700 Lumens
Colour
2700 Lumens
Epson
www.epson.com.sg/colourbrightness
This compares to projectors using single-chip technology that actually project
individual colours sequentially by fi ltering their single white light beam through
a colour wheel, and then relying on human colour perception to combine the
colours in the viewers' minds.
As a result, 3LCD projectors also offer greater detail, smoother gradations, no
"colour breakup" effect, are easier on viewers' eyes, and consume about 25%
less power to achieve the same brightness compared to a single-chip projector
using a lamp of the same wattage.
Competitor
White
2700 Lumens
Colour
740 Lumens
Other 1-Chip Projectors
www.3lcd.com