11th May 2010
Overhead Projectors which are also known as
OHPs are used to project and enlarge an image which is on a transparent sheet
onto a distant screen for easy viewing. It is quite an old type of device, yet,
widely used in businesses, schools, colleges and universities. Places such as
these have their own projectors as they are required very frequently. However,
an Overhead Projector Hire is required for events such as conferences,
meetings, exhibitions and similar events. Companies and persons, who won’t
require the use of this electronic device often, opt for a daily rental – as
and when required or if required for period of time, they settle in for a long
When the machine is rented out, most of the
rental companies offer the required accessories as well, such as,
transparencies, overhead projector trolleys, projection screens which are in
varied sizes etc.
Before renting out the projector make sure
that it has all, or at least most the features that are required to produce a
clear picture, such as:
When you call your rental agent for your
Overhead Projector Hire, you can discuss all the important bits of information
and check its availibility, before committing yourself to hire it.
A vital point to keep in mind is that the
projector should allow the presenter to write down ideas and points as the
discussions are going on, so that it can be projected instantly onto the screen
in order that the attending delegates can take the notes down. This is a very
convenient feature that most projectors should offer.
If you are a person/company who hires
overhead projectors often, it is important to be familiar with the different
types of projectors so that you will be able to request for the right one
according to your event’ requirement. There are 3 general types of projectors:
Transmissive: These projectors are generally comprised of a base with a
transparent stage area, a light source inside the base, a projection head
mounted above the stage and a condensing lens system located near the stage for
directing the light towards the projector head.
Above the base is a projection head which includes lenses and a mirror
which functions to gather light from the projector base and redirects it to the
distant screen. The projection head is supported by a post as it is necessary
to be adjusted so that the projected image on the screen may be brought into
Reflective: A reflective overhead projector is used for presentation of an
image to number of viewers.
Opaque: Opaque projectors are similar to the Reflective projectors but are
able to project images of opaque materials and three dimensional objects in
addition to transparencies.
From these three types of basic overhead
projector systems, the Transmissive Projector is the larges and heaviest.
Overhead Projector Hire is a common
requirement for event organising. If you don’t own a machine it is always
advantageous to have a sound knowledge of its technology so that you will hire
the most appropriate unit for the organised event.