What you need to do is, instead of a point, use a square stock and drill a small hole in the end and make a cross-hair with wire across this opening, or insert a small lens that would focus the light to a point(wouldn't use paper unless you want it to catch fire).

Regards,
Lobo-hotei
lobo

Treat the earth well, It was not given to you by your parents, It was loaned to you by your children.
Native American Proverb