Nec PJ02SK3D User Manual [ru]

NEC DISPLAY SOLUTIONS

THE 3D VIEWING EXPERIENCE

Enter The Next Dimension

3D Digital Cinema | 3D Large Venue | 3D Ultra Short Throw | 3D Value Projection

A JOURNEY THROUGH 3D VIEWING

What is 3D Viewing?

3D viewing is the process of delivering alternative
images to each eye and thereby convincing the
human brain it is seeing objects from an additional,
third perspective.

3D content may be simple images or a series of
images, animated movies or the latest Hollywood
productions. The reality of the experience depends
as much about the 3D image or movie and the
projector or screen as it depends on the capability
of the mind to combine what it sees with our
established understanding of the form of the
objects around us.

2

3D MOVIES: A CENTURY IN THE MAKING

THE EMERGENCE OF 3D

The showing of L’arrivée du Train, a 60 second film, by the
Lumière brothers in 1895 was not just a brand new cinema
experience but laid the path for the 1934 remake, which Louis
Lumière shot in full 3D and had the audience leaving their seats
and leaving the theatre, because the train actually appeared to
be coming out of the screen at them.

In 1952, ‘Bwana Devil’, the first feature-length motion picture
to use 3D was released and started an era that drew audiences
away from their TV sets to the movies. However quality and
viewing comfort were mainly unsatisfactory.

There were genuine 3D successes such as ‘House of Wax’,
‘The Mad Magician’ and ‘Son of Sinbad’ starring Vincent Price,
but by 1955, the buzz was all but over, hampered by constant
technical complications in exhibiting 3D, limited availability of
ground-breaking content and most importantly poor quality and
an uncomfortable user experience.

3D TODAY

Today, 3D is again drawing people back to the cinema and
generating record-breaking revenues. Technology created by
companies like Texas Instruments and NEC create a genuine
high quality viewing experience for audiences and an advanced,
simple to operate, content management and playback solution
for exhibitors. Many esteemed directors such as Steven
Spielberg and Tim Burton have already embraced 3D for their
upcoming efforts, while James Cameron’s ‘Avatar’ was filmed
in 3D using custom cameras and special effects.

Advances in technology have made shooting 3D films more cost­effective and distribution much simpler, as well as eliminating
motion sickness and migraines. Today the technology is there
and production houses are rushing to tap into the new revenue
streams. In 2010, 3D has rightfully established its leading role in
today’s Cinema World.

Early attempts at 3D Cinema
failed to overcome technical and
viewing problems and despite
occasional 3D enhanced epics it
has not been until the advent of
Digital Cinema that 3D Movies
had all the ingredients for
success.

3

NEC INNOVATION FOR A 3D WORLD

Why 3D?

GREATER REALITY

With easier visual understanding of an object’s dimensional characteristics,
objects no longer appear a fixed distance away, but distances appear between
them, with the viewer perceiving themselves physically amongst displayed
content.

Quality 3D media and playback creates an

outstandingly enhanced viewing experience.

Provided the 3D content is of a sufficiently high

standard and the means of delivery via projection,

display or other systems are technically satisfactory,

whatever the viewer is watching they will enjoy a more

engaging and rewarding experience that is essentially

incomparable to conventional 2D viewing.

In terms of reality, capturing attention, increasing

emotional response and ultimately providing more

visual information in the same amount of time, 3D

viewing stands alone.

GREATER ATTENTION

3D is interesting and captivating, it is new and inspiring, in particular Education
audiences find the learning experience more inspirational, more enjoyable and
therefore more memorable.

GREATER PRODUCTIVITY

In a similar time to conventional filming, 3D passes considerably more
information to the viewer in a simple to grasp manner, it therefore effortlessly
accelerates learning without making the experience more trying. This is a
potential advantage in education and in the commercial world of presentations
or modelling.

INCREASED EMOTION

Whether it is interest, admiration, attraction, curiosity, or fear or awe, high
quality 3D media powered by the latest 3D projection systems adds to the
emotional experience to the extent that conventional viewing can seem
comparatively unrewarding.

3D technology is now both convincing and visually outstanding and is set to
improve as Studio’s become more familiar with making the most from the
advances in 3D technology that NEC has helped spearhead.

4

THE BASICS

How Does It Work?

Because of the positioning of our eyes, it is

normal for the brain to see a slightly different

image from each retina and we have developed

the means to perceive the form and depth around

these images, this is called spatial awareness.

Simply speaking the 3D we see today (Stereoscopic 3D) is a visually enhanced
two dimensional viewing experience that the viewer believes they are seeing
in three dimensions and not in two. This is achieved partly by 3D simulation
technology, but the spatial understanding of the viewer is essential to complete
a convincing 3D perception. Effectively the human has a learnt pre-conception
about the form of objects that the 3D experience taps into.

3D playback also works by delivering slightly differing information to each eye
using varying methods, thus allowing the brain to see two different views of
the same object that it can then use to develop an overall impression of the
complete object.

It is essential to ensure that the differing images are perceived simultaneously,
for this reason 3D technology has certain minimum standards, such as any
active shutter 3D system requires a 120Hz image refresh rate (60Hz per
eye), quick enough to ensure the viewer perceives alternating images as
simultaneous.

3D SIMULATION PROCESS. 3D Simulation Systems work by displaying two
slightly different angled images. The viewer wears glasses that use filters to
allow one of these images to pass to the left eye and the other to the right eye,
the human brain using spatial awareness completes the picture.

HUMAN SPATIAL AWARENESS. In the upper left example the purple shape on the left hand
side appears longer than the width of the blue shape on the right hand side, this is because
the viewer sees a familiar perspective and assumes that the shapes are not irregular four
sided shapes but rectangles that are set in parallel positions with the vanishing point to the
back of the image.

This being the perception the viewer is aware that the shape on the left must be longer than
the shape on the right is wide, however as shown in the lower image both lengths are equal.
Virtual 3D uses this human pre-conception to add form to the differing images received by the
left and right eye.

There are different methods of filtering, some are continuous and use polarising
or anaglyph filters, others use shuttering, allowing images to pass through
each lens alternatively at a minimum rate of 60 images per second per eye.

5