Frequently Asked Questions

The lenses are made from imported USA ZnSe and China ZnSe.

The lenses have a diameter range from 5mm to 250mm.

The thickness of the lenses ranges from 0.5mm to 40mm.

The surface quality of the lenses is 60-40 standard.

The flatness of the lenses is specified as 1/10 lambda.

The focal length tolerance is +/- 1%.

The coating wavelength range for the lenses is 8um to 12um.

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