Ring Lights
Dark Field Lights provide illumination that is projected at a shallow angle to the imaging surface, 45 degrees or less. Typical applications include reflective flat surface defect or edge detection, where the majority of the light may reflect away from the camera on the flat, featureless surface but defects may scatter the light to the camera, creating feature appropriate contrast. Dark field illuminators can be dedicated ring lights, or any general bar or spot light oriented at low angles of incidence, depending on defect orientation. Very low angle dark field ring lights must be deployed at close working distances to be effective.
Bright Field Lights provide illumination directly onto an object, at angles of incidence above 45 degrees from horizontal, creating distinct shadows or general purpose illumination depending on subjects features.. This type of lighting is effective when used on objects requiring high degrees of contrast, but may create unwanted specular reflections when directed at shiny or reflective materials because of the high angle of incidence. Working distances can be short to very long.
Model Number: | Wavelength(s): | Intensity: | Additional Information/options: |
DF198 | 455nm 530nm 625nm RGB White | 47,000 lux | Diffuse dark field ring light |
DF196 | 455nm 530nm 625nm RGB White | 78,000 lux | Diffuse dark field ring light |
DF241 | 395nm 470nm 520nm 625nm 660nm 880nm Blue Green Infrared Red UV White | 24,200 lux | Small low-angle dark field ring light |
RL1660 | 395nm 470nm 520nm 625nm 660nm 880nm White | 2,500 lux | Large low-angle dark field ring light |
RL5064 | 395nm 470nm 520nm 625nm 660nm 880nm White | 7,100 lux | Dual function bright/dark field ring light |
RL208 | 365nm 375nm 385nm 395nm 455nm 470nm 505nm 530nm 590nm 625nm 660nm 730nm 850nm 940nm White | 41,400 lux | High performance bright field ring light |
RL-S052120 | 455nm 470nm 505nm 530nm 590nm 625nm 660nm 730nm 850nm 940nm White | 33,300 lux | IP67 bright field ring light |
RL113 | 365nm 375nm 385nm 395nm 455nm 470nm 505nm 530nm 590nm 625nm 660nm 730nm 850nm 940nm White | 45,500 lux | IP67, high performance bright field ring light |
RL127 | 365nm 375nm 385nm 395nm 455nm 470nm 530nm 590nm 625nm 850nm 940nm White | 20,200 lux | Large high dispersion, IP67, high performance bright field ring light, polarized, diffuse |
RL121 | 365nm 375nm 385nm 395nm 455nm 470nm 530nm 590nm 625nm 850nm 940nm White | 27,000 lux | Small high dispersion bright field ring light, polarized, diffuse |