Optical Projectors

Optical projectors, also known as profile projectors or shadowgraphs, use high-quality optics and illumination to project a magnified silhouette of a part onto a large translucent screen. This allows technicians to perform detailed visual inspections and 2D measurements of intricate geometries that are too small or complex for traditional handheld calipers or micrometers.

The projectors in this collection, such as the Mitutoyo PH-3515F, feature digital readout (DRO) counters and precision stages. These allow for accurate X-Y coordinate measurements, while the protractor screen enables the measurement of angles and radii by comparing the projected image against standard charts or overlays.

Yes, these systems support interchangeable projection lenses, typically ranging from 10x to 100x magnification. This flexibility ensures that the operator can choose the appropriate level of detail required for everything from general bolt thread inspection to high-precision micro-component analysis.

The horizontal optical path design allows parts to be placed on a sturdy workstage without obstructing the light beam. This configuration is particularly beneficial for measuring heavy shafts, tools, or machined parts that require a stable base to maintain measurement accuracy during the inspection process.

By using standardized transparency charts (such as thread forms or grid patterns) placed directly on the projector screen, operators can perform rapid "pass/fail" inspections. This visual comparison method significantly speeds up the quality control process for batch manufacturing without sacrificing precision.

HK Calibrations offers professional onsite calibration and technical support to ensure that the optical alignment and stage accuracy of your projector remain within strict industry tolerances. Regular calibration is essential to ensure that the magnified measurements stay traceable to national standards.