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Home > Optical components
Encoder substrates
Encoder substrates Encoder substrates Encoder substrates Encoder substrates Encoder substrates Encoder substrates Encoder substrates Encoder substrates Encoder substrates Encoder substrates Encoder substrates Encoder substrates
  • Encoder substrates
  • Encoder substrates
  • Encoder substrates
  • Encoder substrates

Encoder substrates

Item No.: GES
Product description:
The encoder（Optical Encoder） glass substrate is the base material for fabricating an optical code disc which is made of optical glass by precise processing. At present, the thinnest thickness can be made 0.4 mm,The smallest width of the ring can be 5.0 mm. 
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Description
Product description:
The encoder（Optical Encoder） glass substrate is the base material for fabricating an optical code disc which is made of optical glass by precise processing.        
At present, the thinnest thickness can be made 0.4mm,The smallest width of the ring can be 5.0mm.  

Specifications
Name Encoder glass substrates
Material B270/NBK7/H-K9L/Soda lime
Dimension Ø10.0mm--Ø450.0mm and the smallest width of ring is 5.0mm
Thickness 0.4mm--8.0mm
TTV 2μm
LTV partial Ø50.0mm/1μm
Flatness λ/4  (λ/8 at partial Ø50mm)
Concentricity 0.02mm--0.10mm customized
Surface quality zero defect
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