Recent content by BobH

I'm looking for GE and Cenco high pressure mercury arc lamps from the 1940s or early 1950s, for a display of early holography. If yours happens to be of such vintage, maybe you'd be interested in selling it? I also collect lasers, and laser related equipment and books from the 1960s and...

I'm putting together a display to honour the laser, for its 50th birthday. I'd like to include as many of the very earliest lasers I can find. A few articles will come out of it eventually, and then I'll be looking for a permanent home for those I gather together (and their related ephemera)...

I'm interested in hearing stories about the very early days of lasers. This is easily one of the top few inventions of the last century, and it's turning 50 next year. I'm particularly interested in the first half of the decade, from handbuilt instruments in labs to on-the-shelf product in many...