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Machine Vision Lighting
Backlights, ring lights, bar lights, dome lights, coaxial lights, dark-field lights, diffused lighting, and custom lighting arrangements — the single biggest factor in whether a camera can actually see the defect you’re looking for.
- Types: 8 core geometries
- Control: Continuous · Strobed
- Wavelength: White · Red · Blue · IR
The variable that decides if the defect is even visible
A camera and lens can only work with the contrast that’s put in front of them. The right lighting geometry, angle, wavelength, and control mode is what turns a barely-visible scratch, a flush surface, or a clear label edge into something a vision system can reliably detect, frame after frame.
We treat lighting as its own engineering decision, not an accessory — matched to the part’s material and geometry, the defect you need to catch, and how much ambient light needs to be rejected on the floor.
Line scan camera brands we supply
Line scan systems demand tight tolerances on sensor quality, lighting sync, and long-term availability — we work with manufacturers who hold up on all three.
TMS
We supply TMS lighting across ring, bar, and backlight formats, built for consistent output in continuous industrial use.
- Ring
- Bar
- Backlight
Proteus
We supply Proteus lighting for dome, coaxial, and custom arrangements where geometry and mounting flexibility matter most.
- Dome
- Coaxial
- Custom
Lighting geometries we supply
Each geometry interacts with a part’s surface differently — this is usually the first decision, before wavelength or control mode.
Backlights
Silhouette parts from behind for edge detection, hole checks, and outline measurement.
Ring Lights
Even, direct illumination around the lens axis for general-purpose inspection.
Bar Lights
Directional strips, often paired for line scan and web inspection at an angle.
Dome Lights
Diffused omnidirectional light for curved, reflective, or highly specular parts.
Coaxial Lights
Light travels through the lens axis for glare-free imaging of flat, reflective surfaces.
Dark-Field Lights
Low, grazing-angle light that highlights scratches, edges, and surface texture.
Diffused Lighting
Soft, shadow-free illumination for uneven, curved, or texture-sensitive parts.
Custom Arrangements
Multiple lights combined or built to fit a specific part geometry and mounting space.
Choosing the right lighting
The factors our application engineers work through before recommending a geometry and control setup.
Part Geometry & Material
Flat, curved, reflective, or textured surfaces each favor a different geometry.
Defect Type & Contrast
What needs to stand out — an edge, a scratch, a color shift, or a printed mark.
Ambient Light Rejection
Intensity and shielding needed to stay consistent under factory floor lighting.
Strobed or Continuous
Strobing freezes motion and extends LED life; continuous suits slower, simpler checks.
Wavelength
White, red, blue, or IR, chosen for material response and camera sensitivity.
Space Constraints
How much room exists around the part and camera for the light to be positioned.
How the lighting is driven
Control Mode
Continuous illumination or strobed, synchronized to the camera’s trigger signal.
Wavelength Options
White, red, blue, and infrared, selected for the material and sensor response.
Intensity Control
Adjustable brightness via a dedicated controller or PLC-driven output.
Mounting
Fixed brackets, ring adapters, or custom fixtures built around the part and camera.
Synchronization
Triggered in sync with camera exposure for consistent, motion-free illumination.
Bright-field or dark-field?
The two most common lighting strategies, and what each is actually good at revealing.
Bright-Field
Dark-Field
Light angle
Direct, near-perpendicular to the surface
Low, grazing angle across the surface
Best for
General surface features, labels, and edges
Scratches, texture, and fine surface defects
Appearance
Flat surfaces appear evenly lit
Flat surfaces appear dark, defects appear bright
Industries we supply industrial cameras for
Can't get consistent contrast on your part?
Share your part material, geometry, and the defect you need to catch. Our application engineers will recommend the right lighting geometry, wavelength, and control setup.