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- Sep 5, 2015
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Hello all, new member throwing out a random blurb in the hopes that I can be pointed in the right direction.
I'm building an IR illuminator for night vision. It'll be based on the 808nm wavelength, using the cheap to18 diodes until the optics are sorted. The idea of the project is to build something reasonably cheap for proof of concept without having to buy ridiculously overpriced (and somewhat crap) IR illumination gear.
The only issue I am having is sourcing optics. I'm after somewhat decent coated biconcave and biconvex lenses. If I cannot get either, then a decent source of the same lenses in ground glass would be fantastic. Unfortunately, ebay and aliexpress have plenty of interesting stuff out there but the months of waiting or expensive postage for potentially dubious products.. sigh.
Lens size does not bother me too much, I need to see what is out there more than anything.
Any help would be appreciated
Since the questions will inevitably pop up, I'll be using analog sony 1/3" CMOS CCTV chips with the ICX673 Exview HAD II sensor (very sensitive to IR wavelengths) to view the beam when testing and for IRNV. The image will be displayed on a 7" 1024x768 LCD in the field and a large LCD in the workshop.
I have eye protection, it's the first thing I ordered. I purchased a pair of eagle pair OD6+ 600-1100nm safety glasses. That'll well and truly cover me in the 650nm and 808nm wavelengths I'll be using. http://www.ebay.com.au/itm/281596763475
I'm building an IR illuminator for night vision. It'll be based on the 808nm wavelength, using the cheap to18 diodes until the optics are sorted. The idea of the project is to build something reasonably cheap for proof of concept without having to buy ridiculously overpriced (and somewhat crap) IR illumination gear.
The only issue I am having is sourcing optics. I'm after somewhat decent coated biconcave and biconvex lenses. If I cannot get either, then a decent source of the same lenses in ground glass would be fantastic. Unfortunately, ebay and aliexpress have plenty of interesting stuff out there but the months of waiting or expensive postage for potentially dubious products.. sigh.
Lens size does not bother me too much, I need to see what is out there more than anything.
Any help would be appreciated
Since the questions will inevitably pop up, I'll be using analog sony 1/3" CMOS CCTV chips with the ICX673 Exview HAD II sensor (very sensitive to IR wavelengths) to view the beam when testing and for IRNV. The image will be displayed on a 7" 1024x768 LCD in the field and a large LCD in the workshop.
I have eye protection, it's the first thing I ordered. I purchased a pair of eagle pair OD6+ 600-1100nm safety glasses. That'll well and truly cover me in the 650nm and 808nm wavelengths I'll be using. http://www.ebay.com.au/itm/281596763475
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