- #1
Mike_In_Plano
- 702
- 35
As a quick heads up, I'm buried over my head in an imager project, and the portion that has given me the most headache is the UV source.
Essentially, I need the source to make nice little 13 micron dots in the 405 nm range. I've been assured by a pair of vendors that this is an easy matter of purchasing a very expensive laser module, launching it into a fiber, and using a precision fiber-lens assembly to focus it.
All very nice except I'm going bankrupt purchasing the 3 micron positioning equipment, having parts machined, and bringing together the raster scan computer / position control.
So, my question is this:
Can I cheat, purchase a cheap Chinese laser from Ebay, place a 12 micron spatial filter between the laser and target, and focus the beam such that its periphery is restricted by the filter prior to reaching the focal point. Then after reaching the focal point allow it to expand to about 13 microns at the target. Thus, I think I'm imaging the pinhole onto the target.
Does this sound viable or am I getting myself into a world of difficulty?
Thanks in advance,
Mike
Essentially, I need the source to make nice little 13 micron dots in the 405 nm range. I've been assured by a pair of vendors that this is an easy matter of purchasing a very expensive laser module, launching it into a fiber, and using a precision fiber-lens assembly to focus it.
All very nice except I'm going bankrupt purchasing the 3 micron positioning equipment, having parts machined, and bringing together the raster scan computer / position control.
So, my question is this:
Can I cheat, purchase a cheap Chinese laser from Ebay, place a 12 micron spatial filter between the laser and target, and focus the beam such that its periphery is restricted by the filter prior to reaching the focal point. Then after reaching the focal point allow it to expand to about 13 microns at the target. Thus, I think I'm imaging the pinhole onto the target.
Does this sound viable or am I getting myself into a world of difficulty?
Thanks in advance,
Mike