Whoa there! You're right! Damn, I had another brain fart! What I've been calling a virtual image is a form of real image, even though it can only be seen through the eyepiece and exists only in the ether! Now there was a name for this type of real image. What was it? I can see the diagrams from the text in my head, but I can't make out the term! It's been quite a few years (more than 30) since I studied this crap. Regards, Bob... From: "chandler" <chandler@yomogi.or.jp> > Bob Blakely <Bob@Blakely.com> writes: > > > Actually, the device discussed cannot form a virtual or any other kind of > > image by itself. Your eye (lens) is required to form an actual image on your > > retina. ... > > No, that's what "virtual image" means: the image is such that it can be > viewed with the eye, but not such that it can be projected on a piece of > cardboard.
