What inspection variables should be evaluated?
Oblique line light is direction-sensitive. Test parallel, perpendicular and diagonal scratches rather than a single scratch orientation.
What lighting geometry fits this inspection task?
Oblique or low-angle lighting can darken a smooth background while allowing scattered light to reach the camera. Scratch visibility depends on direction, depth and illumination angle. Separate images from several directions may be needed.
Hold the part fixed and vary the light direction. Compare normal texture with actual defects rather than judging brightness alone. Check shadows, curved-surface highlights and motion blur. Repeat the test at production speed and across the permitted position variation before choosing a layout.
Related product family?
LXV-4LIT
A focused line of light for inspecting surfaces and edges.
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.
Orienting an oblique light?
An oblique line can emphasise features whose slopes redirect light toward the camera. Place representative scratches at different angles to the line and compare the result with a clean reference surface.
Vary elevation and azimuth separately so that the reason for a contrast change is clear. Check mounting repeatability and workpiece height variation. Use a second direction when a single oblique view leaves an important defect orientation invisible.
What do the optical setup and sample images show?
