On-axis and diffuse illumination for inspection systems
AssigneeHutchinson Technology Incorporated
InventorsMatthew S. Lang, Timothy J. Maday, Dennis R. Johnson
Life of this patent
Estimating the term…
Abstract
An inspection system is described. The inspection system includes a camera and a housing. The housing contains a reflective dome. The reflective dome includes an apex and a viewport. The viewport is offset from the apex. The camera is mounted to capture light exiting the reflective dome through the viewport. And, a plurality of light sources are arranged about the reflective dome such that light output from the plurality of light sources enters the dome.
Claims20
An inspection system for providing on-axis and diffuse illumination without the use of a beam splitter, the system comprising:
- a camera;
- and
- a housing, the housing including:
- a reflective dome including an apex and a viewport, the viewport is offset from the apex such that light is unable to pass through the apex of the reflective dome, wherein the camera is mounted to capture light exiting the reflective dome through the viewport;
- a thermally conductive mounting ring surrounding a circumference of the reflective dome and overlapping at least a portion of a bottom side of the housing;
- and
- a plurality of light sources attached to the thermally conductive mounting ring, the plurality of light sources facing away from the reflective dome such that a majority of light output from the plurality of light sources is configured to strike a first surface of the housing and the reflective dome before reflecting orthogonally off an object being inspected and exiting through the viewport into a camera.
An illumination housing for an inspection system for providing on-axis and diffuse illumination without the use of a beam splitter, the illumination housing comprising:
- a reflective dome including an apex and a viewport, the viewport is offset from the apex such that light is unable to pass through the apex of the reflective dome;
- a thermally conductive mounting ring surrounding a circumference of the reflective dome and overlapping at least a portion of a bottom side of the illumination housing;
- and
- a plurality of light sources attached to the thermally conductive mounting ring, the plurality of light sources facing away from the reflective dome such that a majority of light output from the plurality of light sources is configured to strike a first surface of the illumination housing and the reflective dome before reflecting orthogonally off an object being inspected and exiting through the viewport into a camera.
Dependencies are inferred from the claim text.