What is an Optical Comparator? An optical comparator is a device that applies the principles of optics to the inspection of manufactured parts. In a comparator, the magnified silhouette of a part is projected upon the screen, and the dimensions and geometry of the part are measured against prescribed limits.

The Spectra Optical Comparators offer a large capacity stage for dimensional and profile measurements. The horizontal double-mirror design produces images that are sharp and erect. Bench and floor models are offered for shop floor environments.

Model Measurement
Capacity
XY
Accuracy
XY
Perpendicularity
Z
Perpendicularity
Scale
Resolution
Stage
Capacity
Machine
Dimensions
Starting Price
Spectra Bench 300x150x75 mm 2.5+L/25 µm
2.5+L/15 µm
12.5 µm 7.5 µm 2.0 µm 9 kg 950x1075x1025 mm $9,360 USD
Spectra Floor 300x150x75 mm 2.5+L/25 µm
2.5+L/15 µm
12.5 µm 7.5 µm 2.0 µm 9 kg 950x1075x1775 mm $10,460 USD

Accuracy units are microns; length L units are millimeters.
Stage capacity is based on an evenly distributed load.
U.S. price shown for complete measuring system including machine, base, ring light, and InSpec Metrology Software. Specifications and pricing subject to change without notice.

Plain Crosshair
One-Quadrant Protractor
Two-Quadrant Protractor
Tool Room Chart
Thread Chart
Micro-Radius Chart