An optical comparator (often called just a comparator in context) or profile projector is a device that applies the principles of optics to the inspection of manufactured parts.

Manufactured without compromise, Starrett optical comparators provide time tested, cost effective solutions for non-contact measurement. At the heart of these systems are precision optics, …

Optical Comparators from OGP combine cutting-edge optics, lighting, and automation technologies for enhanced productivity and profitability. The benchtop and floor model …

Optical comparators are also commonly known as profile projectors, shadowgraphs, or comparator measuring tools. A typical optical comparator illuminates from below and projects …

Oct 21, 2020 · Optical comparators, also called comparators or profile projectors, are measurement tools used in the manufacturing industry. Comparators inspect, measure, and …

Jun 17, 2025 · An optical comparator is a high-precision measuring instrument used to inspect the dimensional accuracy and surface features of parts. It works by projecting a magnified image …

Optical comparators take precise 2D measurements of a part or workpiece. The magnified image of a part projects onto a screen with an X- and Y-axis. These optical comparators offer a non …

Optical comparators are a type of optical measuring instrument. The measurement principle is similar to that of optical microscopes. The target is placed on the stage, and a light is shined …

24P Optical Comparator The 24P is designed to be an all purpose measurement/inspection instrument capable of performing both light and heavy duty tasks.

These optical comparators work similarly to overhead projectors, but with fixed magnification to preserve proportions. Because of how easy they are to set up and use, they’re a staple in …