1. Instruction

TCL collimated illuminators have been specifically designed to back illuminate objects imaged by telecentric lenses.

This type of illumination is strongly recommended for high accuracy measurement of round or cylindrical parts where diffusive back lighting would offer poor performances.

2.  Peculiarity

Complete light coupling.

All the light emitted by a TCL source is collected by a telecentric lens and transferred to the camera detector, ensuring a very high signal-to-noise ratios.

Border effects removal Border effects removal.

Diffused back-illuminators often make objects seem smaller than their actual size because of light reflections on the object sides, while collimated rays are typically much less reflected.

Field depth and telecentricity improvement.

Collimated illumination geometry increases a telecentric lens natural field depth and telecentricity far beyond its nominal specs.

3.System Parameter