| <![CDATA[I have been working on a new table for my holography bench.
Here is some of my preliminary data. I changed my criterion
to comparing the deflection of 100 lb of weight on a table
simply supported at the ends. As per the Laser/electro-
optics technology curriculum.
The following data is for 3’ x 5’ tables:
½” steel plate 414 wavelengths of 658 nm light
8” granite .3 wavelengths
8” concrete .8 wavelengths
3.5” concrete 9 wavelengths
2” steel 6 wavelengths
3/16” steel caps with 8" vertical balsa core 18 wavelengths
3/16” steel caps with 8" aluminum honeycomb core 18
wavelengths
3/16” steel caps with 8" blue foam core 314 wavelengths
3/16” steel caps with 8" duocel core 50 wavelengths
Talking with successful amature holographers I have
concluded that anything below 20 wavelengths is acceptable.
I hope this information is useful.]]> |