Patent ID: 11927836
Assignee: TECTUS CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 17:
18. An optical imaging system comprising:
a solid transparent substrate having a first flat surface and a second opposing flat surface, wherein the solid transparent substrate comprises two parts with a flat interface between the two parts;
a primary reflective region located on the first flat surface or on the flat interface, the primary reflective region having a central opening; and
a secondary reflective region located on the flat interface or on the second flat surface, wherein at least one of the primary and secondary reflective regions comprises an optical meta surface;
wherein image-forming rays are imaged between a first conjugate and a second conjugate; the first conjugate is located to a same side of the substrate as the first flat surface; the second conjugate is located to a same side of the substrate as the second flat surface; and the image-forming rays propagate from the first conjugate through the central opening to the secondary reflective region to the primary reflective region to the second conjugate, either a long a forward direction or along a reverse direction; and
at least one of (a) a primary baffle located between a first ray bundle and a second ray bundle, the first ray bundle comprising image-forming rays propagating between the central opening and the secondary reflective region, and the second ray bundle comprising image-forming rays propagating between the secondary reflective region and the primary reflective region; and (b) a secondary baffle located between the second ray bundle and a third ray bundle, the third ray bundle comprising image-forming rays propagating between the primary reflective region and the second flat surface.