While the integrated VS2 light will work for many use cases, it may be recommended to use an external lighting source to improve the contrast between object details for specific machine vision applications.
Bar lights are strips of lights that can be mounted in a variety of configurations to provide light from different angles. As a result, bar lights are a flexible lighting solution that can be used in a variety of use cases from providing contrast for reading objects on matte surfaces to highlighting defects or scratches.
Ring lights provide a concentrated source of light that can be used to remove shadows from an area of interest. It can cause glare so it will not work well for reflective surfaces.
Dome lights provides uniform lighting on the product to help capture perform inspections on shiny or bumpy surfaces. To work effectively, the dome light should be mounted close to the object being inspected.
Area lights provide diffuse lighting from a large rectangular source. These are most effective when used in a backlighting configuration (see next section).
Bright Field Lighting
Type of Lights: Bar, Ring, Dome
Application: This is best used to generating contrast for object details while removing a “hot spot” from direct lighting.
Angled / Dark Field Lighting
Type of Lights: Bar, Ring
Application: The shallow angle of light allows for surface features, such as blemishes, scratches, or imprints to jump out against the background.
Type of Lights: Area
Application: This type of lighting accentuates outlines and gaps of products. It can also highlight blemishes on clear surfaces.