Optical Parallels

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Optical Metrology Instruments

Optical Parallels

We manufacture highly precise optical Parallel that are in large demand in the market for the calibration of Micrometer anvils. Our precision optical Parallel are made with Optical Glass / Fused Quartz Materials. The Flatness is inspected with a Laser Fizeau Interferometer having a Lambda / 20 Transmission Flat. The flatness is quantified with a help of a Licenced Fringe Analysis Software. The parallelism of these are verified by Haidenger Fringe method as well by Interferometric Technics.

Application :
Inspection & Calibration of Flatness of Micrometer anvils

Material	BK-7 / Fused Silica (Suffix A)
Dimensional Tolerance	± 0.15 mm
Thickness Tolerance	± 0.01 mm
Surface Quality	80-50 Scratch & Dig
Surface Accuracy	0.2 microns
Parallelism	0.1 microns
Parallelism Bevel	0.5 mm x 45°

Part No	Diameter	Thickness (mm)
OP-01 / OP-01A	30 mm	12.000, 12.127, 12.250, 12.375
OP-02 / OP-02A	50 mm	25.000, 25.127, 25.250, 25.375

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