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Frequently Asked Questions

A negative cylinder is a lens with one flat surface and one concave surface and a negative focal length.

Negative cylinders are commonly used in laser optics, OEM, metrology, and vision applications.

The standard specifications for Ross Optical's negative cylinders include length tolerance of ±0.10 mm, width tolerance of ±0.14 mm, center thickness tolerance of ±0.50 mm, and surface quality of 60-40.

Yes, you can request custom optics for negative cylinders if you don't see what you need in the standard specifications.

The clear aperture for Ross Optical's negative cylinders is 90%.

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