What inspection variables should be evaluated?
Keep magnification fixed when comparing diffuse and collimated backlights. Record edge transitions and dimensional repeatability.
What lighting geometry fits this inspection task?
Backlighting separates an outline from its background and is a useful starting point for edges, holes and position checks. Confirm that the fixture leaves the optical path clear. Compare diffuse and collimated backlights, especially where curved or transparent edges change with viewing angle.
Keep the camera and lens fixed. Capture the centre and corners at the same exposure, then repeat at different part heights. Check edge profiles and position repeatability. A telecentric lens can reduce magnification changes within its specified range; calibration is still necessary.
Related product family?
LXV-4PFT
Lighting for inspecting shapes, surfaces and small details.
Before choosing a configuration?
For selection, specify the field of view, smallest target feature, height variation, cycle time and installation space. Use the specific product page and drawing to verify electrical ratings, dimensions and compatibility.
Testing a collimated silhouette?
Use a representative edge and the intended lens to compare ordinary and more directional backlighting. Keep the camera settings fixed. Evaluate the stability of the edge position, not simply how dark the silhouette appears.
Move the target through the expected depth and lateral range. Look for edge blur, flare around transparent material and changes near the light's boundary. Confirm the usable illuminated area from the actual measurement task.
What do the optical setup and sample images show?
