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 (standard sheet thickness 180um) |
Out Dimension: |
Square/outer dimension 520.0x520.0, +/-2mm; May DIY cut to smaller size.shape per request. |
Pattern Mode: |
Single surface patterned; Full surface with patterns covered |
Pattern Design: |
Dot design with uniform grid: 51 dots (horizontal) x 51 dots (vertical) |
Dot Diameter |
Diameter 4,000um(4mm), tolerance within 3um |
Dot Pitch Size/Spacing: |
Center-to-center distance(adjacent): 10,000um(10mm), tolerance within 3um (Note: much depends on conditions of mounting and temperature change) |
Pattern Coverage |
100% |
Coating: |
Emulsion black with optical density(OD) 3.5 typ@ 550nm |
Surface Quality: |
60-40 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: |
MOQ 2pcs |