Machine Vision Ring Lights
Use a machine vision ring light when the camera views the target from the front and the inspection needs compact, even illumination around the lens. Ring lights are suitable for moderate-reflection surfaces, labels, presence checks, and features that do not require strong directional shadows.
Suitable uses
- Presence and absence inspection
- Label, mark, and OCR checks on matte surfaces
- General assembly inspection
- Moderate working-distance front lighting
Likely to fail when
- Highly reflective curved metal creates glare
- Surface scratches require directional shadow
- The lens blocks too much light at short distance
Selection inputs
- Outer diameter vs lens and field of view
- Illumination angle
- Working distance
- Required wavelength
- Continuous or strobe operation
Frequently asked questions
When is Machine Vision Ring Lights useful?
Use a machine vision ring light when the camera views the target from the front and the inspection needs compact, even illumination around the lens. Ring lights are suitable for moderate-reflection surfaces, labels, presence checks, and features that do not require strong directional shadows.
What information is needed to select a light?
Start with Outer diameter vs lens and field of view, Illumination angle, Working distance. Share target images and the inspection requirement so the arrangement can be checked on the actual application.