Test Glass... Getting it right in a curving world

Setting the standard
Test glass provides a standard for testing other spherical surface of reverse curvature.

The challenge is to create test glass and test plate optical elements having spherical surfaces of exact known radius. Accuracy must be precise.

Kreischer Optics, Ltd. is a world leader in the manufacture and calibration of test glasses and test plates for the precision optics industry.

See Test Glass Pricing for more details.

Test Glass Inventory
Kreischer Optics has existing test glasses of 1,604 radii. This information is useful to the optical engineer to match a new design to our existing tooling, thus reducing manufacturing cost and lead time.

See Test Glass Inventory for a detailed listing.