Bar Lights for Edges and Scratches
Use a bar light when the angle has to move to show an edge, a scratch, or a texture. Set the bar beside the part and read length and working distance on the bar-light model row.
What applications are bar lights for edges and scratches best suited for?
Open the series, then send the part.
- Directional surface defect inspection
- Large fields of view
- Oblique lighting for texture
- Multi-side lighting around fixtures
When should you avoid using bar lights for edges and scratches?
Use another geometry when the surface does this.
- The target needs shadowless illumination
- Glare is uncontrolled on polished surfaces
- Mounting space cannot support the required angle
What are the primary selection inputs for bar lights for edges and scratches?
Send these with the part.
- Emitting length
- Working distance
- Angle and number of bars
- Diffuser or polarizer requirement
- Line speed and strobe power
What are the key engineering specifications for bar lights for edges and scratches?
Wavelength, working distance, voltage, cooling, and strobe sit on the model row.
| Design Parameter | Standard Engineering Benchmark |
|---|---|
| Optical Geometry | Directional oblique or darkfield grazing illumination from single/multi directions |
| Available Wavelengths | White, Red, Blue, Green, NIR, SWIR options on request |
| Typical Working Distance | Listed on each bar-light model row |
| Operating Voltage | 24V DC standard |
| Cooling Method | High-thermal-conductivity aluminum extruded profile |
| Strobe Overdrive Capability | Supports high-frequency pulse strobe mode for moving line inspections |
What are the most frequently asked questions about bar lights for edges and scratches?
When is Bar Lights for Edges and Scratches useful?
Use a bar light when the angle has to move to show an edge, a scratch, or a texture. Set the bar beside the part and read length and working distance on the bar-light model row.
What information is needed to select a light?
Start with Emitting length, Working distance, Angle and number of bars. Share target images and the inspection requirement so the arrangement can be checked on the actual application.