Book Projector for myopia prevention

Assuming too much close work triggers myopia in some children, I am
looking for a projector that can project a book page onto a screen, to
help my son who love reading so much but is starting to develop myopia
at the age of 8. Much like the transparency projector we all know
about, I am talking about the type that project the image of a
non-transparent object like a book page. It has a camera type device
that 'reads' the book and send the signal to be projected.

Does anybody know what is the name for this device and where can I buy
one ? I remember seeing it in a university library many years ago but
can't remember what it is called.

.

Quantcast