Coaxial Lighting for Specular & Etched Surfaces
Light projected through a beamsplitter along the camera's exact optical axis — the reference format for revealing defects, engravings and codes on shiny or mirror-like parts.
What Is Coaxial Lighting Used For?
Coaxial lighting sends light through a beamsplitter so it travels along precisely the same axis as the camera's lens. Only surfaces perpendicular to that axis reflect light straight back into the lens — flat areas appear bright and uniform, while any scratch, engraving, dent or laser-marked code that breaks that perpendicularity appears dark by contrast. That makes it the reference choice for flat, mirror-like or etched metal parts, where a dome light (built for curved or irregular reflective surfaces) or a bar light (built for flat matte surfaces) would instead wash the same defects out.
The beamsplitter aligns the light source with the camera's own optical axis.
Technical Highlights
- Integrated beamsplitter directing light exactly along the camera's optical axis.
- Compact industrial housing, integrated M12 connector, hardened 24VDC electronics.
- Homogeneous coaxial field, free of the mounting-angle hot spots common with off-axis lighting.
- Multiple LED wavelength options: White, Red, Blue, Infrared (availability depends on configuration).
- Compatible with continuous and strobe/overdrive operation for high-speed lines.
| Light Field / Beam Type | Wavelength Options | Typical Optical Window | Operating Mode |
|---|---|---|---|
| Standard Coaxial Field | White, Red, Blue, Infrared | Working distance and field diameter dependent on configuration — available on request | Continuous or Strobe/Overdrive |
| Extended Working-Distance Coaxial | White, Red, Infrared | Working distance and field diameter dependent on configuration — available on request | Continuous or Strobe/Overdrive |
Dimensions and optical windows shown are generic and given as typical ranges. Exact figures depend on the configuration selected — available on request from our engineering team.
Optical Beam Pattern Visualization
Select a beam type to see how the light behaves in cross-section at working distance.
See our overdrive calculation guide to optimize this product's intensity, and our standard M12 pinout for its electrical integration. Replacing a reference from another brand? See our brand equivalence and dual sourcing table to find the compatible alternative.
Technical Documents
Request Specifications & a Quote
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Integration & Compatibility Guides
Not Sure About the Optical Result?
Borrow a demo kit to test on your own bench, or send us a sample of your part for a free contrast analysis in our lab.
Test on Sample or Borrow Equipment