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.

Optical comparators and profile projectors are used to measure angles, radii, slots, circles and edges on two-dimensional parts. The comparator or projector uses a beam of light to project …

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

Benchtop and floor model optical comparators from OGP offer the industry’s best value and performance for non-contact measurement.

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 an advanced device that utilizes light, magnification, and a projected image to provide non-contact, high-accuracy examination of manufactured …

4 days ago · An optical comparator is a specialized inspection machine that projects a magnified shadow of a workpiece onto a glass screen to allow for precise measurement and inspection.

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

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 …