Sim2 Multimedia DLP Video Projector C3X Link - Manual (Page 6)

The core and most critical component
in a Home Cinema Front Projection
unit has always been its light engine.
Image accuracy of a projector is
governed by the quality of this piece
of precision optical engineering.
A delicate balance is required
between light engine, DLP® chipset
and control electronics, in order to
optimize the performance of each.
SIM2 developed a new innovative
system to re-size the illumination
optical path while maintaining its
length (necessary for correct picture
aberration control) and SIM2’s famous
compact design (required for
installation and interior-design
constraints).
Compact 3-chip DLP®-based light
engine by SIM2
SIM2 Alpha Path Light Engine:
A basic feature of SIM2’s system
is its compact structure, which
is obtained by overlapping the
optical light-path to the projection
lens (hence the name of
ALPHA-type structure).
SIM2’s Alpha Path Light Engine:
DMD chip (Red)
DMD chip (Green)
DMD chip (Blue)
High quality, spurious particles-free
glass lens
Lamp
This folded light path, patented and
named ALPHA Path™, is the result of
SIM2's advanced optical and thermal
analysis.
Accurate management of the internal
light path, without any kind of
scattering or thermal dispersion, is
achieved by utilizing a special coating
on the inner surface, together with the
prisms' TIR (Total Internal Reflection)
control and optimized Relay Optics.
SIM2 customized optical components,
lenses and prisms, are used
throughout for optimum performance.
The DarkChip™3, coupled with SIM2’s
light engine, delivers excellent contrast
(6500:1 typical for the Grand Cinema
C3X and C3X LINK models and
5500:1 typical for the C3X LITE) and
image richness.
SIM2 Thermal Management
Accurate thermal and fluid-dynamics
analysis was carried-out by SIM2’s
R&D department during the design of
Grand Cinema™ C3X, this aided in
the creation of a light engine that
avoids excessive light spill and
overheating of the light path.
Cooling of the projector is particularly
clever, with side mounted intakes and
exhausts, efficient fans and an
innovative ‘heat pipe’ – a heat transfer
8 • 9
Raytracing: The picture illustrates
raytracing used to identify stray light
sources inside the optical path and
prism assembly. Accurate simulations
modelling ON and OFF DMD states and
coating on prisms surfaces have been
performed to evaluate DMD diffraction
and risk of ghost images, as well as to
optimize contrast. Color splitting and
recombining has been fully modelled to
guarantee highest efficiency and purity
of colors.
mechanism that can transfer large
quantities of heat away from the light
path - all forming the cooling system.
All this adds up to one of the quietest
- and coolest - projectors on the
market.