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FrozenGate by Avery

Need help finding quartz optics...

D

digital_blue

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So, after destroying over 20 plastic lens trying to collimate my UV laser, I'm finally convinced that I need proper optics. I'm looking specifically for uncoated quartz lenses that are approximately 1" diameter. I have searched fleabay but most of the lenses are AR coated for specific wavelengths. Could anyone recommend a good source for these lenses?

thanks
 





Cyparagon said:
Why won't glass lenses work?
Click to expand...

I've found that glass reflects or absorbs alot of the UV. Even plastic lenses transmit better than glass; only problem with plastic is the degradation due to the UV and q-switching. I have tried a quartz/silica lens before and it works much better.
 
UV laser ..... some types of glass block part of the UV band, some other fluoresce ..... you need optic crystal, not sure that quartz works, at least if is not a specific lens made for that use, but in this case, i think it can be all except cheap .....

some producers have also low-volume distribution ..... as example, you can try to ask producers like ROCOES via email ..... Dichroic filter, Glass filter, Lens, Glass, - ROCOES co., ltd. ..... asking cost nothing, after all :D
 
Have you tried concave mirrors? I know that some quartz is made for UV and some isn't. Also natural quartz is sometimes made into lenses, I can check my old optical sources, but I need to, at a minimum know three things, what diameter lens is needed, what focal length is needed and what wave length or (wave lengths if more than one). Otherwise, it's a complete shot in the dark if a lens would be much help. -Glenn
 
I am using the lens to improve the divergence of my 355nm unit (dot is about 8" at 35 feet). I want a lens about 1" dia with a FL at about 12mm. I have checked edmund optics and they don't seem to have anything that meets my specs; not to mention, they're pretty expensive...
 
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