Patent ID: 11861966
Assignee: WAVEFRONT TECHNOLOGY, INC.
Field: Measurement (Instruments)
Classification: CPC G  B | IPC B  G

Claim 0:
1. An optical device comprising:
an array of lenses;
a plurality of first and second segments disposed under the array of lenses, the first segments corresponding to portions of an icon and a background; and
a substrate having a first side and a second side opposite the first side,
wherein the array of lenses is disposed on the first side of the substrate,
wherein the first and second segments are disposed on the second side of the substrate,
wherein at a first viewing angle, the array of lenses presents the icon for viewing, and at a second viewing angle different from the first viewing angle, the array of lenses does not present the icon for viewing, and
wherein for the first segments,
transparent features define the icon, and non-transparent features define the background, or
transparent features define the background, and non-transparent features define the icon.