Sill Optics UV lens on eBay

[enricosavazzi]

https://www.ebay.com/itm/133799417510?hash=item1f271116a6:g:ycsAAOSw1V9gDaFI

 

As far as I can tell, this is a telecentric lens comparable to those used on industrial videocameras. Similar lenses (but not this exact model) are listed in a Sill catalog at https://www.silloptics.de/fileadmin/user_upload/pdf/Katalog/Katalog_BV_2018-_Web.pdf . In this catalog it is mentioned that these lenses are designed for a 380-405 nm range, so they are only marginally good for UVA. The catalog mentions that these lenses are used for DMDs (Digital Micromirror Devices, see https://en.wikipedia.org/wiki/Digital_micromirror_device ), so probably intended for a digital image projector of some sort. I have no idea what a digital projector for NUV could be used for. 8 μm pixels (mentioned as the smallest pixel size) implies a rather low image resolution, compared to our UV-enabled consumer cameras.

 

The price is not very high, but this item is probably more suitable as a collector's item than for practical use in UV imaging.

[Doppler9000]

Sold!