Substrate Material: |
Mylar, Polyester; High optical transmission compatible to optical glass |
Refractive Index: |
1.640-1.670nm (wavelength band of 250-2500nm) |
Melting Point: |
254 deg C |
Thickness: |
200um,+/-25um |
Out Dimension: |
Square 101.6x101.6, +/-0.2mm; (4"x4") |
Pattern Mode: |
Single surface patterned |
Pattern Design: |
Dot design with grid of 17x17 = total 289 dots. |
Dot Diameter |
Diameter 3,000um, tolerance within 3um |
Dot Pitch Size/Spacing: |
Center-to-center distance: 6,000um, tolerance within 3um |
Pattern Coverage |
As shown below - drawing with 17x17 array patterned |
Coating: |
Emulsion black with optical denstity(OD) 4.7 - 4.9 @ 550nm |
Surface Quality: |
60-40/80-100 scratch and dig (Ra within 38nm scanned by profilometer) |
Substrate Unifromity: |
within 2um |
Surface Protection: |
Both surfaces come protection layers; Peel off these 2 protection layers before use |
MOQ: |
NA |