Omnidirectional imaging optics with 360°-seamless telescopic resolution
View Patent ↗A multifacet mirror comprises a catoptric structure configured to reflect light from a first field of view onto an image plane comprising a plurality of sensors, the catoptric structure having a surface comprising a plurality of facets separated by a plurality of catoptric regions; wherein a facet of the plurality of the facets has a second field of view that is smaller than the predetermined field of view; and wherein a catoptric region of the plurality or catoptric regions between two facets of the plurality of facets is configured to reflect light from a world point within the first field of view onto two of the sensors of the plurality of sensors.
1. An apparatus, comprising:
a catoptric structure configured to reflect light from a first field of view onto an image plane comprising a plurality of sensors, the catoptric structure having a surface comprising a plurality of facets separated by a plurality of catoptric regions;
wherein a facet of the plurality of the facets has a second field of view that is smaller than the first field of view;
wherein the plurality of sensors comprises a plurality of separate pixel arrays, and each facet as a focal point corresponding to a predetermined point on a corresponding of one of the plurality of pixel arrays; and
wherein a catoptric region of the plurality of catoptric regions between two facets of the plurality of facets is configured to reflect light from a world point within the first field of view onto two separate pixel arrays.
2. The apparatus of claim 1 , wherein the catoptric region between the two facets is configured to reflect light from the world point within the field of view onto neighboring edge regions of the pixel arrays.
3. The apparatus of claim 2 , wherein each facet of the plurality of facets has an effective viewpoint, and wherein each image of the viewpoints of the plurality of facets are imaged onto a separate pixel array.
4. The apparatus of claim 2 . wherein each facet of the plurality of facets has an effective viewpoint, and wherein the effective viewpoints of the plurality of facets coincide at a focal plane of the catoptric structure.
5. The apparatus of claim 2 , wherein each facet of the plurality of facets has an effective viewpoint, and wherein the effective viewpoints of the plurality of facets do not coincide at a focal plane of the catoptric structure.
6. The apparatus of claim 2 , wherein:
the first field of view has a first horizontal component and a first vertical component;
the second field of view has a second horizontal component that is substantially the same as the first horizontal component; and
the second field of view has a second vertical component that is smaller than the first vertical component.
7. The apparatus of claim 6 , wherein a facet of the plurality of facets has a surface profile comprising a portion of a surface of revolution of a skewed or unskewed conic section from a first angle to a second angle.
8. The apparatus of claim 7 , wherein the angular distance between the first angle and the second angle determines the width of edge regions of the two sensors.
9. The apparatus of claim 7 , wherein the angular distance between the first angle and the second angle is
FOV
H
n
plus between 1 and 15 degrees based on the chip boundary thickness, where FOV H is the first horizontal component and n is the number of facets of the plurality of facets.
10. The apparatus of claim 7 , wherein the conic section is a hyperbola.
11. The apparatus of claim 2 , wherein:
the first field of view has a first horizontal component and a first vertical component;
the second field of view has a second horizontal component that is smaller than the first horizontal component; and
the second field of view has a second vertical component that is smaller than the first vertical component.
12. A catadioptric imaging system, comprising:
a catoptric structure configured to reflect light from a first field of view onto an image plane comprising a plurality of sensors, the catoptric structure having a surface comprising a plurality of facets separated by a plurality of catoptric regions,
wherein a facet of the plurality of the facets has a second field of view that is smaller than the first field of view;
wherein the plurality of sensors comprises a plurality of separate pixel arrays, and each facet has a focal point corresponding to a predetermined point on a corresponding of one of the plurality of pixel arrays; and
wherein a catoptric region of the plurality of catoptric regions between two facets of the plurality of facets is configured to reflect light from a world point within the first field of view onto two of the separate pixel arrays.
13. The catadioptric imaging system of claim 12 , wherein the catoptric region between the two facets is configured to reflect light from the world point within the field of view onto neighboring edge regions of the pixel arrays.
14. The catadioptric imaging system of claim 13 , wherein each facet of the plurality of facets has an effective viewpoint, and wherein each image of the viewpoints of the plurality of facets are imaged onto a separate pixel array.
15. The catadioptric imaging system of claim 14 , wherein the lens has a multi-viewpoint topology corresponding the viewpoints of the plurality of facets.
16. The catadioptric imaging system of claim 13 , wherein each facet of the plurality of facets has an effective viewpoint, and wherein the effective viewpoints of the plurality of facets coincide at a focal plane of the catoptric structure.
17. The catadioptric imaging system of claim 13 , wherein each facet of the plurality of facets has an effective viewpoint, and wherein the effective viewpoints of the plurality of facets do not coincide at a focal plane of the catoptric structure.
18. The catadioptric aging system of claim 13 , wherein:
the first field of view has a first horizontal component and a first vertical component;
the second field of view has a second horizontal component that is substantially the same as the first horizontal component; and
the second field of view has a second vertical component that is smaller than the first vertical component.
19. The catadioptric imaging system of claim 18 , wherein the array of sensors comprises an array of rectangular sensors arranged in a radial array.
20. The catadioptric imaging system of claim 18 , wherein a facet of the plurality of facets has a surface profile comprising a portion of a surface of revolution of a skewed or unskewed conic section from a first angle to a second angle.
21. The catadioptric imaging system of claim 20 , wherein the angular distance between the first angle and the second angle determines the width of edge regions of the two sensors.
22. The catadioptric imaging system of claim 20 , wherein the angular distance between the first angle and the second angle is
FOV
H
n
plus between 1 and 15 degrees based on the chip boundary thickness, where FOV H is the first horizontal component and n is the number of facets of the plurality of facets.
23. The catadioptric imaging system of claim 20 , wherein the conic section is a hyperbola.
24. The catadioptric imaging system of claim 13 , wherein:
the first field of view has a first horizontal component and a first vertical component;
the second field of view has a second horizontal component that is smaller than the first horizontal component; and
the second field of view has a second vertical component that is smaller than the first vertical component.
25. The catadioptric imaging system of claim 24 , wherein the facets of the plurality of facets are arranged on the surface of the catoptric structure in a plurality of azimuthal zones.
26. The catadioptric imaging system of claim 25 , wherein the plurality of sensors is arrayed into a plurality of different resolution zones corresponding to the plurality of azimuthal zones.
27. The apparatus of claim 1 , wherein the predetermined field of view is the first field of view.
28. The catadioptric imaging system of claim 12 , wherein the predetermined field of view is the first field of view.
29. The apparatus of claim 1 , wherein the light reflected from a world point within the first field of view onto two separate pixel arrays creates redundant images on at least a portion of each of the two separate pixel arrays.
30. The apparatus of claim 29 , wherein the two separate pixel arrays are adjacent, and the redundant images on at least a portion of each of the two separate pixel arrays are used to stitch together images from each pixel array, effectively eliminating a gap between the two adjacent pixel arrays.
31. The apparatus of claim 1 , wherein the plurality of sensors comprises a separate sensor corresponding to each facet of the plurality of facets.
32. The apparatus of claim 1 , wherein each facet comprises a section of a paraboloid.
33. The apparatus of claim 1 , wherein the plurality of facets of the catopric structure are arranged horizontally and azimuthally about the structure.
34. The apparatus of claim 33 , wherein the plurality of sensors comprises a separate sensor corresponding to each facet of the plurality of facets.
35. The apparatus of claim 34 , wherein the facets are arranged in a plurality of zones, and further wherein the plurality sensors comprise different resolution sensors corresponding to each of the plurality of zones.
36. The apparatus of claim 12 , wherein the light reflected from a world point within the first field of view onto two separate pixel arrays creates redundant images on at least a portion of each of the two separate pixel arrays.
37. The apparatus of claim 36 , wherein the two separate pixel arrays are adjacent, and the redundant images on at least a portion of each of the two separate pixel arrays are used to stitch together images from each pixel array, effectively eliminating a gap between the two adjacent pixel arrays.
38. The apparatus of claim 12 , wherein the plurality of sensors comprises a separate sensor corresponding to each facet of the plurality of facets.
39. The apparatus of claim 12 , wherein each facet comprises a section of a paraboloid.
40. The apparatus of claim 12 , wherein the plurality of facets of the catopric structure are arranged horizontally and azimuthally about the structure.
41. The apparatus of claim 40 , wherein the plurality of sensors comprises a separate sensor corresponding to each facet of the plurality of facets.
42. The apparatus of claim 41 , wherein the facets are arranged in a plurality of zones, and further wherein the plurality sensors comprise different resolution sensors corresponding to each of the plurality of zones.