WKK represents AQU glass. Custom made available according to requirements.

· Suitable for manual, semiautomatic & automatic exposure machine.

· Optic transmission rate over 92% and UV beam transmission rate over 84%

· With no nick in the glass surface and no visible bubbles under 100 times microscope, rapidly increase the exposure energy. 

· Professional chemical strengthen or steel strengthen (Need choice) to increase many times of the glass surface intensity, especially suitable for high vacuum exposure.

Glass with Multiline Frame	AQU Glass	High Qualified Drill Hole

Glass Inspection Specifications Glass Grade   Grade IS Grade IIS Grade IIIS Maximum Scratch Width 0.0024 0.0016 0.0008 Maximum Scratch Length 0.078 0.078 0.078 Maximum Diameter of Bubbles, Inclusions and or Pits 0.0157 0.0079 0.0024 Max Size of edge chips (Image Side) 0.010 0.010 0.010 Maximum Size of Edge Chips (Non Image Side) 0.040 0.040 0.040 Minimum Distance Between Defects 0.400 0.400 0.400 Max. Size Bubble or Pit within 1/8" of Edge of Tooling Hole or Groove 0.040 0.040 0.040 Max. Scratch Width Within 1/8" of Edge of Tooling Hole or Groove 0.010 0.010 0.014 All dimension in inches

 

 

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