Optical Filter From
Welcome to Wide Angle Camera Lenses and more!
Here you will find the Optical Filter From information that you are looking for.
We ask you to browse our website and use the search feature if there is something you are looking for.
Optical Filter From
Is there such an optical filter that is sensitive to mechanical force exerted on the material?
Normal optical filter blocks some range of light frequency. Filter characteristics is static and never changes.
What I’m looking for is a filter with variable characteristics which is sensitive to mechanical force exerted on it. For example, if a filter is stretched outward, its filtering range moves as the strech continues.
Am I dreaming? Looking at the eye glasses that is darkened when you are outside and gets light when inside, hopefully I’m not.
Yes , there are plenty of photoelastic substances around. They are mostly used in thin films to produce interference patterns when parts are stressed. Here’s a really interesting paper from a few years ago about a novel use of one of these films :
http://polypedal.berkeley.edu/twiki/pub/PolyPEDAL/MechanicsResearch/jeb9681_singleleg.pdf
|
|
55mm #25 Red Optical Filter from Fotodiox “Brand NEW” $3.36 |
Alnair Bandwidth-Tunable Optical Filter – CVF 200