I was learning some optics and then I wondered what would happen if some object was exactly in the focus of converging lens, more accurately, what would I see if looking from the other side?
EDIT: so there would be candle. The candle would be exactly at focus. The tip of the flame would be "sending" rays of light toward the lens. Parallel ray would hit the lens and then go right towards focus while vortex ray would go through the vortex of the lens unchanged but parallel to the first ray so there would be no place where the image would create right?
I mean, the light rays would be parallel and they would never form an image.. probably. Thanks in advance!