🚀 go-pugleaf

s097585@student.uq.edu.au (David Furler) writes:

>Hi, can anyone suggest methods for projecting multimedia images from a 
>computer screen onto a wall?

>I am enquiring on behalf of the hub, brisbane's soon to be internet cafe. 
>We thought it would be really cool for various events if we could project 
>a computer monitor's images, magnifying them of course in the process.

>Any help at all would be appreciated, a rough idea of the prices of 
>various systems and where we could buy or hire one would be fabulous.

>thanks--
>david.

All such systems I have seen require some reduction in the ambient
light level to be seen clearly -- some are unviewable except in
an almost dark room.

None are cheap.

There are some low cost systems advertised for home use
(around $2,500-$3,000) but the ones I have seen require a
very dark room.

The following prices are without sales tax.

LCD panels the sit on top of overhead projectors are available
(prices vary from $8,000 to $12,000 plus) but they require
a high intensity overhead projector (which cost about $2,500)
otherwise the room has to be quite dark.

Portable (luggable) projection units are available with quite
good intensity (prices around $10,000 to $15,000). These can project
both computer video output (usually 640 by 480 by 256 colours) and
VCR output. If you can afford it this would be your best option.
These require some reduction in ambient light but not as much
as the other systems mentioned here.

At the high end are the Barco (brand-name) projectors that are
designed to be fixed to the ceiling of a room. I don't know the
prices on these. They require a reduced ambient light level for
clear viewing.


Roy Ferguson, Senior Lecturer, RMIT.

royf@rmit.edu.au

PHONE:  +61 3 9660 5309              FAX: +61 3 9660 5340

Department of Computer Systems Engineering
RMIT,  GPO Box 2476V, Melbourne, Victoria  3001, Australia