Projection Devices, Continued
Portable
overhead
projectors
Portable overhead projectors are similar to overhead projectors. Portable
projectors fold into a self-protecting carrying case. The on/off switch has a
third position which allows the blower to remain on after the projector bulb
is turned off. Also, the bulb is more intense and has a shorter life. The use
and care of a portable overhead projector is the same as for a regular
overhead projector.
Figure 5-5 shows a few of the many types of portable overhead projectors
available.
Figure 5-5. —Portable overhead projectors.
Continued on next page
5-12
