Imaging device blemish detection test enclosure

A method comprising:

• mounting to a mounting structure an image capturing device comprising an optical sensor and lens having an optical axis and a lens field of view;
• inserting the mounting structure into a test structure, the test structure comprising a first body having a concave surface and a second body coupled to the first body, the first body and the second body defining a cavity, the first body defining a spherical sector greater than a hemisphere, the first body and the second body being joined at a seam;
• orienting the optical axis of the lens towards the concave surface such that the seam is outside the lens field of view;
• illuminating the concave surface;
• and
• capturing an image with the image capturing device.

A system comprising:

• a mounting structure configured to removably couple an optical imaging device;
• a first body having a concave surface defined by a substantially spherical sector configured to evenly disburse light reflected on the concave surface, the spherical sector being greater than a hemisphere;
• a second body coupled to the mounting structure and coupled to the first body at a seam, wherein the mounting structure and the second body are configured to orient an optical axis of a lens of the optical imaging device towards the concave surface and locate the lens relative to the concave surface where the seam is outside of a lens field of view of the lens, wherein the mounting structure configured to removably couple the optical imaging device in a fixed orientation relative to the first body and the second body;
• and
• a light source disposed in the second body and directed towards the concave surface of the first body.