Optical device metrology systems and related methods

A method of optical device metrology comprising:

• a) providing a first type of light into a first optical device during a first time period, the first optical device comprising a top surface, a bottom surface, and one or more edges connecting the top surface with the bottom surface;
• b) measuring, by a first camera, a quantity of the first type of light transmitted from a first location on the top surface or the bottom surface during the first time period;
• c) coating at least a portion of an edge of the one or more edges with a first coating of optically absorbent material during a second time period that occurs after the first time period;
• d) providing the first type of light into the first optical device during a third time period that occurs after the second time period;
• e) measuring, by the first camera, a quantity of the first type of light transmitted from the first location on the top surface or the bottom surface during the third time period;
• and
• f) measuring, by a second camera, a quantity of the first type of light transmitted from a first location on an edge of the one or more edges during the first time period and the third time period.

A method of optical device metrology comprising:

• a) providing a first type of light into a first optical device during a first time period, the first optical device comprising a top surface, a bottom surface, and one or more edges connecting the top surface with the bottom surface;
• b) measuring, by a first camera, a quantity of the first type of light transmitted from a first location on the top surface or the bottom surface during the first time period;
• c) measuring, by a second camera, a quantity of the first type of light transmitted from a first location on an edge of the one or more edges during the first time period;
• d) coating at least a portion of an edge of the one or more edges with a first coating of optically absorbent material during a second time period that occurs after the first time period;
• e) providing the first type of light into the first optical device during a third time period that occurs after the second time period;
• f) measuring, by the first camera, a quantity of the first type of light transmitted from the first location on the top surface or the bottom surface during the third time period
• g) measuring, by the second camera, a quantity of the first type of light transmitted from the first location on the edge of the one or more edges during the third time period;
• and
• h) determining the first coating or the second coating is better suited for absorbing light based on the measurements made during blocks b), c), f), and g) for the first optical device and the second optical device, wherein the measurements made by the first camera are weighted more heavily than the measurements made by the second camera for determining which coating is better suited.