Patent ID: 11971251
Assignee: nan
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 12:
13. An inspection and measurement device, comprising:
a transparent body defining a first planar face within a first bounded area and a second planar face spaced apart from the first planar face;
a first reference feature disposed on the first planar face within the first bounded area and corresponding with a first measurable parameter;
a second reference feature disposed on the first planar face within the first bounded area and corresponding with a second measurable parameter; and
an opaque layer disposed on the first planar face and spaced from at least one edge of the transparent body, the opaque layer being disposed over a portion of the first reference feature and at least a portion of the second reference feature;
wherein:
the first and second reference features are positioned within the first bounded area for placement adjacent an element bearing the respective one of the first and second measurable parameters, at least the first reference feature extending past the opaque layer to the edge of the transparent body; and
the first and second reference features overlap within the first bounded area in at least one direction.