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US 12,761,158 B2Granted
Lighting for an optical monitoring apparatus
AssigneeBüHler UK Limited
InventorsBrice Thurin, Timothy Kelf, Nicholas London, Desmond Pereira
Life of this patent
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Abstract
An optical monitoring apparatus and method. The apparatus comprises an imaging device for monitoring material continuously moving through a defined imaging area. The apparatus further comprises a lighting unit comprising a source of light and a concave freeform reflector configured for reflection of light from the source of light in three dimensions to provide uniform illumination across the defined imaging area.
Claims15
An optical monitoring apparatus, the apparatus comprising:
- an imaging device for monitoring of material continuously moving through a defined imaging area, and
- a lighting unit comprising at least one source of light and a concave freeform reflector configured for reflection of light from the at least one source of light in three dimensions to provide uniform illumination across a plane of the defined imaging area.
A method for optical monitoring of material, the method comprising:
- imaging material flowing through a defined imaging area by a digital imaging device;
- emitting light from at least one source of light;
- and reflecting the light in three dimensions by a concave freeform reflector such that uniform illumination is provided across a plane of the defined imaging area and such that the imaging device provides uniform response across the imaging area.
Dependencies are inferred from the claim text.