Apparatuses, systems, and methods for disrupting light at a back-side of an image sensor array

A system comprising:

• a head-mounted display;
• and
• an imaging device that comprises:
• an aperture;
• a camera lens positioned to direct light received through the aperture to a plurality of image sensor elements at a front side of an image sensor array;
• and
• the image sensor array, wherein:
• the plurality of image sensor elements collects a portion of the light received through the aperture;
• a light-disrupting element is disposed at a back side of the image sensor array, the light-disrupting element comprising an uneven surface etched directly on the back side of the image sensor array;
• and
• the light-disrupting element at the back side of the image sensor array prevents at least a portion of the light that is not collected by the plurality of image sensor elements from reflecting back to the plurality of image sensor elements.

A method comprising:

• forming a light-disrupting element comprising an uneven surface etching at a back side of an image sensor array, the image sensor array comprising a front side that comprises a plurality of image sensor elements that collects a portion of light received through an aperture, the light-disrupting element at the back side of the image sensor array preventing at least a portion of the light that is not collected by the plurality of image sensor elements from reflecting back to the plurality of image sensor elements;
• coupling the back side of the image sensor array to a front side of a printed circuit board;
• and
• positioning the printed circuit board within an imaging device behind a camera lens positioned to direct light received through the aperture of the imaging device to the plurality of image sensor elements at the front side of the image sensor array.