One important specification that buyers should take into consideration when
buying portable digital projectors is the brightness of the machine, given
in lumens. The higher the lumens, the better your projector will be able to
project a clear sharp image even in less than optimally dark rooms.
One factor that’s not so obvious and that’s not stated directly by digital
projector manufacturers is that, depending on where your projector is set
up from the screen, the brightness level can vary by 200%!
This is an especially important factor to consider for those looking for
portable digital projectors since the screen to projector distance will
most likely vary from setup to setup.
The goal of this article is to inform you of the impact of your projector’s
positioning and lens type on brightness. By understanding how these factors
work together, you’ll be able to achieve optimal levels of brightness as
given by the projector’s manufacturer.
First off, the brightness given off varies greatly by the lens mode. When
in full wide angle mode, the amount of light that makes it out of the lens
is maximized and the amount of light is decreased by telephoto mode. In
other words, you’ll get more lumens if you place your projector closer
rather than farther away from your screen.
With most projectors that have a limited zoom lens, brightness is not an
issue, but with certain types of portable digital projectors such as 3LCD
and LCoS types which have a zoom ratio of around 2:1, the projector’s
position can greatly affect image quality.
While having a large zoom ratio gives you more freedom in where to place
your projector the trade off is a dramatic drop in brightness as distance
increases. Also, placing your projector closer to the screen to increase
brightness will only work up to a point. Too close, anywhere past the zoom
mid range and you’ll run into color and image distortion as well as
limiting the viewing area for your audience.
This is one important trade off to consider and keep in mind when shopping
for portable digital projectors. The amount of brightness you’ll get in
real life will likely be less than as stated by the manufacturer and you
should look for as high a brightness level as possible to compensate for
Do you want to learn how portable digital projectors
can maximize your business goals? See how the best portable projectors
give your presentations that extra professional touch
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