10X Loupe With LED/UV Lighting
This 10X triplet has 20.5mm Aplanatic and Achromatic lens
with two different lights, with 6 LED lights and a single
UV light. Because the use of the LED light renders the UV
light unusable, you can only use one light source at a time.
The UV light is used for checking fluorescence in diamonds
and has a wavelength of 380-390nm. Diamonds with fluorescence
will appear cloudy when viewed with the UV light on.