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