The ultimate answer to this Frequently Asked Question is: Do you imagine for one moment that all the technically qualified entrepreneurs around the world haven't thought the same thing and investigated with the single universal aim of making a million bucks? Can you imagine for more than a microsecond that there wouldn't be something on the market if it were possible?
Having said that (for the 10**nth time) I have to say that I have some ideas that need experimentation for making "light-bucket" mirrors. My own actual working spun-resin mirrors of c. 1971 were of a quality which would offer some hope of making photometer systems with angular resolutions of the order of ummm, well, maybe 10 arc-minutes, maybe better with practice.
_______________________________________________________________________________ Science is the lamp which man has himself kindled: it has built him lighthouses on the dark shores of the unknown: but his dreams, his quests for truth, lead him beyond the waters which his little lamp of knowledge illumines; and if he would venture on the farther ocean he must set his course by a star. "A reading of life". S. R. Lysaght, Irish Minister, poet and racist bigot. ------------------------------------- David Beach, Scientist, Machine Vision Team, Industrial Research Limited, POBox 2225, Auckland, New Zealand. +64 9 303 4116 (Voice), +64 9 302 8106 (Fax), http://www.irl.cri.nz (Web). ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~