- Higher brightness, no potential convergence errors. Please
click to find out more about DLP™
- Better contrast - black is black, white is white with better colour
reproduction.
- The life expectancy of DLP (sealed units) is much greater than an
LCD panel.
- SXGA provides 67% more information on screen than standard XGA. Perfect
for medical, engineering, financial and DTP displays.
- No convergence errors, highly accurate grey scale without colour casts
or shift. Transferred to colour images this yields accurate reproduction
of colours, and for instance flesh tones are rendered with natural precision.
Single chip are also much lower cost than 3 chip.
- Ensures a uniform black and white image with very high contrast, unmatched
by any competing digital technology.
- The higher the contrast ratio (ie 1000:1) the clearer the image will
be.
- With high brightness levels (measured in ANSI lumens) the control
of ambient light is less important, expensive high gain screens are
not necessary and larger images can be projected.
- Wide angle lenses offer ultra short throw distances, ideal for saving
space in rear projection and simulators, ie F1SXGA-Wide 1:1 (image width
to distance).
- Ultra high performance lamp technology for natural colours, long lasting
(2000 hours typical life), high brightness and high brightness for longer
(the brightness of most other lamp technologies drops very quickly after
relatively little use.)
- Front
There is no great science in front projection (frontpro) - the real
issue is using material that stays flat over many years. The lower the
gain, the better the viewing angles. the higher the gain, the screen
gets 'brighter' but more directional. For example, with a high gain
screen the projector should be ceiling mounted to reflect the image
down to the audience. Remember the perceived image 'brightness' derives
from the image contrast. A front projector screen cannot distinguish
between projected and ambient light, so control over ambient light means
better results.
- Rear
Rear projection (rearpro) is much brighter than front projection, because
it offers good contrast: meaning good black levels and good colour saturation.
It allows self-contained solutions, with the projector and other equipment
hidden out of sight. Fresnel screens are used for brightness uniformity,
so the image is as bright in the corners as in the centre, with no 'hot
spot'. Also called 'optical screens' as they have additional technologies
to boost projector contrast and combat the effects of ambient light,
Cheaper diffusion screens are liable to 'hot spot', but can also be
used when budget is tight, when the image size is not too large, when
a standard (ie non-wide angle) lens is used. For practical advice on
rearpro, visit www.rearpro.com.
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