US 12,744,986 B2 · Machine vision system and method with multispectral light assembly

Abstract

A machine vision system can include an image sensor assembly including an image sensor, a lens assembly coupled to the image sensor assembly, an illumination assembly coupled to the lens assembly, and a removable front cover positioned in front of the illumination assembly. The illumination assembly can include a plurality of multispectral light assemblies. Each multispectral light assembly of the plurality of multispectral light assemblies can include a multispectral light source having a plurality of color LED dies configured to generate at least two different wavelengths of light, a light pipe positioned in front of the multispectral light source and having an exit surface, a diffusive surface on the exit surface of the light pipe, and a projection lens positioned in front of the diffusive surface. The machine vision system can also include an illumination sensor configured to detect light from the illumination assembly.

Claims19

Dependent claims

A machine vision system comprising:

an image sensor assembly including an image sensor;
a lens assembly positioned in front of the image sensor assembly;
an illumination assembly disposed around a portion of the lens assembly, the illumination assembly including:
a plurality of multispectral light assemblies, wherein each multispectral light assembly of the plurality of multispectral light assemblies includes:
a multispectral light source having a plurality of color LED dies configured to generate at least two different wavelengths of light;
a light pipe positioned in front of the multispectral light source, the light pipe having an exit surface;
a diffusive surface on the exit surface of the light pipe;
and
a projection lens positioned in front of the diffusive surface;
and
a removable front cover positioned in front of the illumination assembly including the projection lens of each multispectral light assembly;
and
a passive light accessory removably attached to the machine vision system and positioned in front of the removable front cover and the illumination assembly.

10 more elements

A machine vision system comprising:

an image sensor assembly including an image sensor;
a lens assembly positioned in front of the image sensor assembly, the lens assembly including a plurality of lenses and a first gear positioned around the lens assembly;
an illumination assembly disposed around a portion of the lens assembly, the illumination assembly including:
a housing including an inside surface, an outer surface and a front plate;
a gear mechanism disposed within the illumination assembly housing and positioned directly on the inside surface of the illumination assembly housing and movably engaged with the first gear on the lens assembly;
an opening in the outer surface of the illumination assembly housing configured to receive a tool to engage the gear mechanism to manually adjust the focus of the lens assembly;
a plurality of openings in the front plate of the illumination assembly housing;
and
a plurality of multispectral light assemblies, and
a removable front cover positioned in front of the illumination assembly.

7 more elements

Dependencies are inferred from the claim text.

Machine vision system and method with multispectral light assembly

Life of this patent

Machine vision system and method with multispectral light assembly

Life of this patent

Abstract

Claims19