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07-01-2010, 11:31 PM
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Joined: Jan 2010
08-01-2010, 07:00 PM
IMAX (short for Image Maximum) is a film format created by Canada's IMAX
Corporation that has the capacity to display images of far greater size and resolution than conventional film display systems available at the time. This technology was developed by four Canadians: Graeme Ferguson, Roman
Kroitor, Robert Kerr and William C. Shaw.
A standard IMAX screen is 22 m wide and 16.1 m high (72.6 ft x 52.8 ft), but can be larger. IMAX DOME (originally called OMNIMAX), is designed for project and implimentationion on tilted dome screens.large-format, special-venue film presentations ar emainly done with IMAX. IMAX screen is close to a conventional 4:3 aspect ratio,
but is much bigger than that . the system power is typically 12500 W. four low-frequency loudspeakers in each cabinet with nested high- and mid-frequency horns are used for clarity and freedom from distortion.
With IMAX the
project and implimentationed image is 69.6 mm wide and 48.5 mm tall and three times as much film is required compared to conventional project and implimentationion.
"rolling loop" film transport is used by adding a compressed air "puffer"
to accelerate the film, and put a cylindrical lens in the project and implimentationor's "block" for the film to be vacuumed up against during project and implimentationion. The lens is twice
the height of the film and is connected to a pneumatic piston so it can be moved up or down while the project and implimentationor is running.
In IMAX project and implimentationors, 4 registration pins engage the sprockets
at the corners of the project and implimentationed frame to ensure perfect alignment. cam-controlled
arms decelerate each frame to eliminate the microscopic shaking .The project and implimentationor weighs up to 1.8 tonnes and height is over 70" and 75" long. The xenon lamps are made of a thin layer of quartz crystal, and contain xenon gas at a
pressure of about 25 atmospheres.
IMAX film does not include an embedded soundtrack, but is included in a separate six-channel 35 mm magnetic tape
synchronized to the film. Many IMAX theaters place speakers directly behind the
screen as well as distributing the speakers around the theater to create a three-dimensional effect.
The dome system, uses a
fisheye lens on the camera that squeezes a highly distorted 180 degree field of view onto the 70
mm IMAX film. The lens is aligned below the center of the frame and most of the bottom half of
the circular field falls beyond the edge of the film
Full seminar and presentation report download:
IMAX.pdf (Size: 192.44 KB / Downloads: 986)
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21-09-2012, 04:00 PM
IMAX.pdf (Size: 284.22 KB / Downloads: 171)
The process principle used by IMAX technology is based on classic injection
curing using hollow needles. The brine or emulsion to be injected is fed directly
into the injection material through a pump and pipe system. Both boneless and
boned meat is injected, as well as fish, vegetables, cheese, etc. The selection of
machines available ranges from hand injectors to high-performance industrial
In designing IMAX technology, the aspects of technology, productivity and
production hygiene were rethought and systematically further developed, in
some cases even redeveloped.
Potential for increasing productivity
MAX technology offers you:
• More efficient machines with a high hourly injection rate.
• Integrate the basic injection curing module into complete production lines.
• Enter, administer and document process data such as brine pressure,
injection speed, brine temperature, length of product feed and one-way
or two-way injection, using digital process control.
Potential for raising the hygiene status
IMAX technology makes it possible for
• simple and effective cleaning of the material transport surface and injector
canal by means of the transport beam system.
• minimized deposits of brine contents, and more efficient cleaning, due to the
hose compressions in the joins between metal and hose.
• minimum heating of the brine during feed thanks to shorter brine feed routes.
• an effective and verifiable means of cleaning the system, because the entire
brine feed system can be dismantled, from the pump lid to the manifold and
right through to the tip of the needle.
• prevention of residual water by complete system discharge.
• a more efficient and time optimized cleaning process due to the new
designed transport trolley.