Bar lighting
Incident light illumination, consisting of one or a few rows of LEDs. Creates a light strip on the test object. Can be irradiated at different angles to increase or decrease reflections. If the beam illumination is aligned at a small (flat) angle to the test object, this is referred to as dark field illumination.
Other names: bar light or line lighting.
Example of beam or line lighting from Büchner, here the TOP-LINE-4TE model.
Büchner offers a large selection of bar or line lighting → here.