Local representative

Product Catalog 2015



Laser optics direct from stock. All products are inspected at metrology laboratory, certified and delivered worldwide direct from European Union.

How did you hear about Altechna?

Neutral Density Absorption Type Filters

Neutral Density Absorption Type Filters
Show all
Material Neutral density glass
Diameter tolerance +0/-0.2 mm
Clear aperture >90 %
Surface quality 60-40 S-D
Surface flatness <λ @ 632.8 nm
Parallelism error <3 arcmin
Protective chamfers <0,25 mm x 45°
Designed for VIS range (400-700 mm)
Uncoated, unmounted -
Price list
fill request form
Attention! You can customise this product to your needs.
Neutral density laser radiation filters with custom transmittance, dimensions and shape. Neutral density absorption type filters decrease intensity of light without altering the relative spectral distribution of the energy. Attenuation is accomplished by using an absorbing type glass.

Download Absorptive neutral density filters transmission curves
varna Neutral Density filter is an economical solution to attenuate light