Ok (though this is an educated guess since I grew up with laser shows when things were more of a “walled garden” than today) – A beam table would be an optical breadboard. This is a metal plate (often a thicker honeycomb structure) with threaded holes on a grid (1/4-20 on a 1 inch grid, or 5mm on a 2.5cm grid more often than not...) the “Kit” would be all and sundry little mirror, prism, actuator, and etc. mounts designed to mount on said table.
The advantage of a beam table is you can do anything on a big enough beam table. The disadvantage is they can be huge, and that means they may not fit where you need them to fit. The “all and sundry” little thingys that make up the kit are EXPENSIVE, and appear to have a strong desire to wander off somewhere when you need (or just really want) them. Setting them up is labor intensive. Masking them is labor intensive. Moving them is labor intensive. Thinking about setting them up involves a host of permutations, many of which lead to the beam path running off the side of the table before you would prefer it did. That said, when you don’t know what you need to do what you haven’t discovered yet - they don’t significantly add to your sleepless nights…
brian
Last edited by laserist; 10-27-2011 at 14:27.