Optical devices for independent movement control of lenses and image sensors in camera systems
Aspects of the present disclosure relate to optical devices and related methods that facilitate independent control of movement of lenses and image sensors in camera systems. In one example, an image sensor is movable independently of and relative to a lens, and the lens is movable independently of the image sensor. In one example, an optical device includes a lens, and an image sensor disposed below the lens. The image sensor is movable relative to the lens. The optical device includes a plurality of magnets disposed about the lens, a plurality of vertical coil structures coiled in one or more vertical planes, and one or more horizontal coil structures coiled in one or more horizontal planes. The plurality of vertical coil structures are configured to, when powered, move the image sensor relative to the lens. The one or more horizontal coil structures are configured to, when powered, move the lens.
1. An optical device, comprising:
a base defining an X-Y plane extending parallel to the base and a Z-axis extending perpendicularly to the X-Y plane;
a lens;
an image sensor disposed below the lens along the Z-axis, wherein the image sensor is movable relative to the lens;
a plurality of magnets disposed about the lens;
a plurality of vertical coil structures coiled in one or more vertical planes extending parallel to the Z-axis, wherein the plurality of vertical coiled structures, when powered, horizontally move the lens; and
one or more horizontal coil structures coiled in one or more horizontal planes, each of the one or more horizontal planes oriented perpendicularly to the one or more vertical planes and the Z-axis, wherein the one or more horizontal coil structures, when powered, move the image sensor relative to the lens.
2. The optical device of claim 1 , wherein the plurality of vertical coiled structures, when powered, horizontally move the image sensor relative to the lens, and the one or more horizontal coil structures, when powered, move the lens.
3. The optical device of claim 1 , wherein the image sensor is operably connected to a gyroscope.
4. The optical device of claim 1 , wherein the one or more horizontal coil structures comprise a plurality of horizontal coil structures coiled in the one or more horizontal planes to tilt the lens when differing electrical power is applied to at least two of the plurality of horizontal coil structures.
5. The optical device of claim 1 , wherein:
each horizontal coil structure of the one or more horizontal coil structures is disposed at least partially below a lower surface of a respective magnet of the plurality of magnets;
a first portion of each horizontal coil structure is aligned vertically under the lower surface of the respective magnet;
a second portion of each horizontal coil structure is aligned inwardly of an inner surface of the respective magnet, or is aligned outwardly of an outer surface of the respective magnet; and
a center of each horizontal coil structure is aligned vertically under the inner surface of the respective magnet, or is aligned vertically under the outer surface of the respective magnet.
6. The optical device of claim 5 , further comprising one or more second horizontal coil structures coiled in one or more second horizontal planes oriented perpendicularly to the one or more vertical planes and the Z-axis, wherein each second horizontal coil structure of the one or more second horizontal coil structures is disposed at least partially above an upper surface of the respective magnet of the plurality of magnets.
7. The optical device of claim 1 , wherein:
each horizontal coil structure of the one or more horizontal coil structures is disposed at least partially above an upper surface of a respective magnet of the plurality of magnets;
a first portion of each horizontal coil structure is aligned vertically above the upper surface of the respective magnet;
a second portion of each horizontal coil structure is aligned inwardly of an inner surface of the respective magnet, or is aligned outwardly of an outer surface of the respective magnet; and
a center of each horizontal coil structure is aligned vertically above the inner surface of the respective magnet, or is aligned vertically above the outer surface of the respective magnet.
8. The optical device of claim 1 , wherein each vertical coil structure of the plurality of vertical coil structures is disposed outwardly of an outer surface of a respective magnet of the plurality of magnets, or is disposed inwardly of an inner surface of the respective magnet of the plurality of magnets.
9. The optical device of claim 1 , wherein the plurality of magnets are disposed at corners of a pattern or at sides of the pattern, wherein the pattern is a square pattern or a triangular pattern.
10. The optical device of claim 1 , wherein the plurality of magnets are magnetized horizontally toward the lens to generate magnetic fields horizontally in horizontal directions toward the lens, wherein a north pole of each magnet of the plurality of magnets faces inwardly toward the lens, and a south pole of each magnet of the plurality of magnets faces outwardly away from the lens.
11. The optical device of claim 1 , wherein the plurality of magnets are magnetized vertically to generate magnetic fields vertically in vertical directions toward the one or more horizontal coil structures.
12. A camera system comprising the optical device of claim 1 .
13. An optical device, comprising:
a base defining an X-Y plane extending parallel to the base and a Z-axis extending perpendicularly to the X-Y plane;
a lens;
an image sensor disposed below the lens along the Z-axis, wherein the image sensor is movable relative to the lens and is operably connected to a gyroscope;
a plurality of magnets disposed about the lens;
a plurality of vertical coil structures coiled in one or more vertical planes extending parallel to the Z-axis; and
one or more horizontal coil structures coiled in one or more horizontal planes, each of the one or more horizontal planes oriented perpendicularly to the one or more vertical planes and the Z-axis.
14. An optical device, comprising:
a base defining an X-Y plane extending parallel to the base and a Z-axis extending perpendicularly to the X-Y plane;
a lens;
an image sensor disposed below the lens along the Z-axis, wherein the image sensor is movable relative to the lens;
a plurality of magnets disposed about the lens;
a plurality of vertical coil structures coiled in one or more vertical planes extending parallel to the Z-axis; and
one or more horizontal coil structures coiled in one or more horizontal planes, each of the one or more horizontal planes oriented perpendicularly to the one or more vertical planes and the Z-axis, and the one or more horizontal coil structures comprising a plurality of horizontal coil structures coiled in the one or more horizontal planes to tilt the lens when differing electrical power is applied to at least two of the plurality of horizontal coil structures.
15. An optical device, comprising:
a base defining an X-Y plane extending parallel to the base and a Z-axis extending perpendicularly to the X-Y plane;
a lens;
an image sensor disposed below the lens along the Z-axis, wherein the image sensor is movable relative to the lens;
a plurality of magnets disposed about the lens and at corners of a pattern or at sides of the pattern, wherein the pattern is a square pattern or a triangular pattern;
a plurality of vertical coil structures coiled in one or more vertical planes extending parallel to the Z-axis; and
one or more horizontal coil structures coiled in one or more horizontal planes, each of the one or more horizontal planes oriented perpendicularly to the one or more vertical planes and the Z-axis.
16. An optical device, comprising:
a base defining an X-Y plane extending parallel to the base and a Z-axis extending perpendicularly to the X-Y plane;
a lens;
an image sensor disposed below the lens along the Z-axis, wherein the image sensor is movable relative to the lens;
a plurality of magnets disposed about the lens and magnetized horizontally toward the lens to generate magnetic fields horizontally in horizontal directions toward the lens, wherein a north pole of each magnet of the plurality of magnets faces inwardly toward the lens, and a south pole of each magnet of the plurality of magnets faces outwardly away from the lens;
a plurality of vertical coil structures coiled in one or more vertical planes extending parallel to the Z-axis; and
one or more horizontal coil structures coiled in one or more horizontal planes, each of the one or more horizontal planes oriented perpendicularly to the one or more vertical planes and the Z-axis.
17. An optical device, comprising:
a base defining an X-Y plane extending parallel to the base and a Z-axis extending perpendicularly to the X-Y plane;
a lens;
an image sensor disposed below the lens along the Z-axis, wherein the image sensor is movable relative to the lens;
a plurality of magnets disposed about the lens and magnetized vertically to generate magnetic fields vertically in vertical directions toward the one or more horizontal coil structures;
a plurality of vertical coil structures coiled in one or more vertical planes extending parallel to the Z-axis; and
one or more horizontal coil structures coiled in one or more horizontal planes, each of the one or more horizontal planes oriented perpendicularly to the one or more vertical planes and the Z-axis.