Close range projection reduces not only shadows of the presenter
but also glare of the projection light, making lectures and
meetings less stressful. You can write letters or draw figures
on the projected image with an interactive pen. Then you can
store these letters and figures in a computer. The interactive
function allows efficient and effective presentations and
promotes information sharing. *The interactive function: PT-
TW231R only. Note: In order to allow the sensor of the projector
to accurately detect the position of projected screen, please
install the Light Pen II software and execute the calibration
first. For better understanding of lectures The teacher makes
the students write answers on the whiteboard to increase their
feelings of involvement in the class and their levels of
understanding. For facilitating information-sharing meeting You
can immediately digitalize the contents written on the screen
for information sharing. For more realistic training The
presenter writes key points and new data