Tungsten filaments for electron guns.
all shapes, all brands
Nanoptik filament technologies, result of more than 40 years in expertise in electronic optics, are compatible with most tungsten sources for electron microscopy (SEM, TEM), spectrometry (EPMA) and primary sources for ray guns. 100 µm- or 120 µm-diameter braided filaments offer a wide range of contrast and excellent brightness for imaging. Our filament refurbishment service extends your products lifetime and decreases your laboratory costs.
Find yours.
Best brightness, long lifetime and lower running costs.
Stress-reducing by heat flash under vaccum operating conditions. Final test for filament-centering accuracy. Six months warranty standard with exchange.
Making and delivery process
folding
Filaments folding is controled by mechanic system to provide same manufacturing conditions for each product.
centering
Filament centering is verified by an optical projection to meet the manufacturers' specifications.
checking
Integrity of the filament tip is checked by secondary electron imagery to ensure product quality.
heating
Final step consist in stress-reduction by heat flash under vacuum standard operating conditions.
delivery
Each filament is packaged individually. Warranty covers premature wear under normal use conditions.
Save money, refurbish
Repair service for any type of filaments with provided bases. The best solution to increase filament lifetime. Same performances. Same warranties.
Send back all your broken filaments, we give them a second life! 
We clean or remove used parts to renew the base of your filament. 
We mount a new tungsten filament. Same quality. Lower price.