Measuring techniques


	Flatness Measuring Gauge
	• 400 - 1500 mm • digital gauge • granite block for reference


	Interference Checking Device
	• monochromatic light for flatness checking • sodium discharge lamp • wavelength 0,6 micrometer • 18 W/35 W • 220 V • 0,35 A/0,68 A • max. dimension of workpieces: Ø 250 mm


	Optical Flat
	• fused silica • Ø 25 - 300 mm • 1/4 or 1/10 lambda • single or double side grinded