- Quantity
- Frame
1″,2″,3″,4″,5″,6″,5″x7″ (Rectangle) - Membrane Thickness
ST Standard Thickness—5µm ± 10% (0.0002″ ± 10%)
ETP Extra Thin Pellicle—2µm, ± 10% (0.00008″ ± 10%) - Membrane Uniformity
SQ Standard Quality—4 fringes (2waves) per inch
LQ Laser Quality—1 fringe (1/2 wave) per inch.
All ETP are LQ - Coating
Uncoated – UNC
Standard Coated
– NPX9 50/50 for HeNe
– NPZ 33/67 for Visible
– NP40 for visible
– NPIN 30/30 for visible + IR
– NPAL88/<01 for visible