A digital projector is a device that connects to a computer or like devise
via cabling to enable the computer monitor display to be enlarged and
projected onto a screen. The standard digital projector connects via a VGA
lead direct to your computer or uses component video cables, (red, green
and blue plugs) to connect to your DVD player, HDTV, set top box or video
camera. However to be safe always make sure to double check the projector
has the right outputs to connect to the devise or devises you wish to
connect it to. Features of a quality digital projector should include:
Digital Projectors – Resolution
Digital projector resolution refers to the pixel density of the image to be
projected. A digital projector has two resolutions, the natural resolution
and maximum resolution. The natural resolution is the standard pixel size
of the projected image; the maximum resolution is the maximum capability of
the projector. Typically a digital projector should be able to accept
resolutions of 800×600, 1024×768 or 1280×1024, however it is not the size
of the resolution the digital projector can accept which is important, but
rather the native resolution of the projector. The higher the native
resolution of the projector the greater the colour quality, or should I say
color density of the projected image.
Digital Projectors – Lumens
Lumens refer to the brightness of the projected image. Simply put the
higher the lumens the brighter the projection. Brightness ratings, measured
in lumens, are typically lower for home theatre models than for office
models. Room size and screen size/distance will also affect the need for
more or less lumens. A projector may have a great Lumens rating, but if the
contrast ratio is low, you image will look washed out. For low-ambient or
true lights-out productions, you may find that a 1000 to 1500 lumens rating
is sufficient. If you need a very bright projector (3000 lumens or more),
an LCD projector is probably your best choice. The lowest lumen projectors
today start at about 700 lumens and go up to a jaw-dropping 15,000 lumens.
A good rule of thumb is that it is always better to err on the side of too
many lumens than too few.
Digital Projectors – Throw Distance
Throw distance refers to the maximum distance your digital projector can be
positioned away from the screen before image resolution, luminosity and
therefore image quality are affected. The greater the throw distance, the
larger the size of the projected image on the screen. Digital projector
throw distance is an important key feature if you are planning to use the
projector in a large room or outdoor environment, however for the home user
today’s basic digital projector has more than sufficient throw distance to
meet the needs of your home movie theatre.
Digital Projectors – Aspect Ratio
Aspect ratio refers to the ratio between the width and height of the
projected image. There are three standard aspect ratios settings that you
should ensure your digital projector projects these are: 1:1, 4:3 and 16:9.
Having a digital projector which has aspect ratio options are important as
different media are delivered in different aspect ratios. For example
standard video is delivered with an aspect ratio of (4:3), while HDTV uses
a (16:9) format. If your digital projector had a locked aspect ratio of
(4:3) you would not be able to experience in full, the visual experience of
wide screen movies or images. With more and more digital media including
cable and online TV networks adopting the (16:9) format this is something
to definitely check.
Display Features – fixed keystone correction and lens shift functions
To ensure you can maximize the quality of the digitally projected image on
your presentation screen ensure that the digital projector has fixed
keystone correction and a lens shift function. Fixed keystone correction
shoots the image higher than the lens so the projector itself doesn’t block
the viewers line of sight. Similarly the lens shift function allows you to
shift the image up and down and left and right. A handy tool for making
fine-tuning the position of your projected image on the screen.
If you are considering buying a digital projector remember the key features
to look for are high native resolution, high luminosity and a suitable
throw distance for the environment you intend to use the projector in.
For more helpful advice about choosing the right digital projector for your
needs or for more information about digital projector lamps and accessories
click here [http://www.digitalprojector.com.au]
Chris Hopkins is an event specialist with several years experience using
digital projectors both in the commercial environment for seminars,
conferences and concerts and in the home for personal viewing pleasure.
From AliExpressAliExpress.com Product - AUN Smart Projector, D5S, Android 7.1 (Optional 2G+32G) WIFI, Bluetooth, HDMI, Home Theater Mini Projector (Optional D5 White)
AliExpress.com Product - VIVICINE 1280x720p HD LED Projector,Android 7.1.2 HD Portable HDMI USB PC 1080p Home Theater Proyector Bluetooth WIFI Beamer
AliExpress.com Product - New listing native 1280*800 smart game movie Video HDMI USB VGA TV Full HD 1080P Home Theater Android OS wifi 3D LED Projetor
AliExpress.com Product - 2016 New CT80 Portable Digital Mini 1800lumen LED LCD Projector HD 1080P Home Theater support USB SD VGA ATV HDMI black or white