Array camera modules incorporating independently aligned lens stacks
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04N-005/225
G02B-027/62
G02B-007/02
H01L-025/04
H04N-005/235
H04N-005/369
H04N-009/04
H04N-009/73
출원번호
US-0536552
(2014-11-07)
등록번호
US-9264592
(2016-02-16)
발명자
/ 주소
Rodda, Errol Mark
Duparré, Jacques
출원인 / 주소
Pelican Imaging Corporation
대리인 / 주소
KPPB LLP
인용정보
피인용 횟수 :
48인용 특허 :
129
초록▼
Array cameras, and array camera modules incorporating independently aligned lens stacks are disclosed. Processes for manufacturing array camera modules including independently aligned lens stacks can include: forming at least one hole in at least one carrier; mounting the at least one carrier relati
Array cameras, and array camera modules incorporating independently aligned lens stacks are disclosed. Processes for manufacturing array camera modules including independently aligned lens stacks can include: forming at least one hole in at least one carrier; mounting the at least one carrier relative to at least one sensor so that light passing through the at least one hole in the at least one carrier is incident on a plurality of focal planes formed by arrays of pixels on the at least one sensor; and independently mounting a plurality of lens barrels to the at least one carrier, so that a lens stack in each lens barrel directs light through the at least one hole in the at least one carrier and focuses the light onto one of the plurality of focal planes.
대표청구항▼
1. An array camera module, comprising: a carrier in which a plurality of windows is formed;at least one sensor mounted relative to the carrier so that light passing through the plurality of windows in the carrier is incident on a plurality of focal planes formed by at least one array of pixels on th
1. An array camera module, comprising: a carrier in which a plurality of windows is formed;at least one sensor mounted relative to the carrier so that light passing through the plurality of windows in the carrier is incident on a plurality of focal planes formed by at least one array of pixels on the at least one sensor;a plurality of lens barrels mounted to the carrier, so that a lens stack in each lens barrel directs light through one of the plurality of windows in the carrier and focuses the light onto one of the plurality of focal planes; anda module cap mounted over the lens barrels, where the module cap includes at least one opening that admits light into the lens stacks contained within the plurality of lens barrels. 2. The array camera module of claim 1, wherein: each of the at least one sensor is mounted to a first side of carrier; each of the plurality of lens barrels is mounted to a second opposite side of the carrier. 3. The array camera module of claim 1, wherein: the at least one sensor is mounted to a substrate and the carrier is mounted in a fixed location relative to the substrate; andthe at least one sensor is positioned proximate a first side of the carrier and each of the plurality of lens barrels is mounted to a second opposite side of the carrier. 4. The array camera module of claim 1, wherein the at least one sensor is a single sensor. 5. The array camera module of claim 4, wherein: the single sensor is mounted to a first side of the carrier; andeach of the plurality of lens barrels is mounted to a second opposite side of the carrier. 6. The array camera module of claim 4, wherein: the single sensor is mounted to a substrate and the carrier is mounted in a fixed location relative to the substrate; andthe single sensor is positioned proximate a first side of the carrier and each of the plurality of lens barrels is mounted to a second opposite side of the carrier. 7. The array camera module of claim 1, wherein each lens barrel forms a separate aperture. 8. The array camera module of claim 1, wherein: each lens barrel and corresponding focal plane forms a camera;different cameras within the array camera module image different parts of the electromagnetic spectrum; andthe lens stacks contained within the lens barrels differ depending upon the portion of the electromagnetic spectrum imaged by the camera to which the lens barrel belongs. 9. The array camera module of claim 8, wherein the lens stacks contained within the lens barrels differ with respect to at least one of: the materials used to construct the lens elements within the lens stacks; the shapes of at least one surface of corresponding lens elements in the lens stacks. 10. The array camera module of claim 1, wherein each lens stack in the lens barrels has a field of view that focuses light so that the plurality of arrays of pixels that form the focal planes sample the same object space within a scene. 11. The array camera module of claim 10, wherein: the pixel arrays of the focal planes define spatial resolutions for each pixel array;the lens stacks focus light onto the focal planes so that the plurality of arrays of pixels that form the focal planes sample the same object space within a scene with sub-pixel offsets that provide sampling diversity; andthe lens stacks have modulation transfer functions that enable contrast to be resolved at a spatial frequency corresponding to a higher resolution than the spatial resolutions of the pixel arrays. 12. The array camera module of claim 1, wherein at least one of the plurality of windows in the carrier includes a spectral filter. 13. The array camera module of claim 12, wherein at least one of the plurality of windows in the carrier comprises a ledge on which the at least one spectral filter is mounted. 14. The array camera module of claim 12, wherein the at least one spectral filter is selected from the group consisting of a color filter and an IR-cut filter. 15. The array camera module of claim 1, wherein at least one spectral filter is applied to an array of pixels forming a focal plane on at least one of the sensors. 16. The array camera module of claim 1, wherein at least one lens stack includes at least one spectral filter. 17. The array camera module of claim 1, wherein the plurality of lens barrels and the plurality of focal planes form an M×N array of cameras. 18. The array camera module of claim 17, wherein the plurality of lens barrels and the plurality of focal planes form a 3×3 array of cameras. 19. The array camera module of claim 17, wherein the M×N array of cameras comprises a 3×3 group of cameras comprising: a central reference camera;four cameras that capture image data in a first color channel located in the four corners of the 3×3 group of cameras;a pair of cameras that capture image data in a second color channel located on either side of the central reference camera; anda pair of cameras that capture image data in a third color channel located on either side of the central reference camera. 20. The array camera module of claim 19, wherein the reference camera is selected from the group consisting of: a camera including a Bayer filter; and a camera that captures image data in the first color channel. 21. The array camera module of claim 1, further comprising an interface device in communication with the at least one sensor, where the interface device multiplexes data received from the at least one sensor and provides an interface via which multiplexed data is read and the imaging parameters of the focal planes formed by the at least one pixel array on the at least one sensor are controlled. 22. The array camera module of claim 21, wherein: the interface device is mounted to the carrier and the carrier includes circuit traces that carry signals between the interface device and the at least one sensor; anda common clock signal coordinates the capture of image data by the at least one sensor and readout of the image data from the at least one sensor via the interface device. 23. The array camera module of claim 21, wherein: the at least one sensor and the interface device are mounted to a substrate, which includes circuit traces that carry signals between the interface device and the at least one sensor;the carrier is mounted in a fixed location relative to the at least one sensor; anda common clock signal coordinates the capture of image data by the at least one sensor and readout of the image data from the at least one sensor via the interface device. 24. The array camera module of claim 1, wherein the module cap is mounted to the carrier so that a small air gap exists between the module cap and the top of the lens barrels and a small bead of adhesive seals the air gaps between the module cap and the lens barrels. 25. The array camera module of claim 1, wherein the carrier is constructed from a material selected from the group consisting of ceramic and glass. 26. The array camera of claim 1, wherein the at least one sensor comprises a separate sensor for each of the plurality of lens barrels. 27. A array camera module, comprising: a carrier in which a plurality of windows are formed;a plurality of sensors each including an array of pixels, where the plurality of sensors are mounted relative to the carrier so that light passing through the plurality of windows is incident on a plurality of focal planes formed by the arrays of pixels;a plurality of lens barrels mounted to the carrier so that a lens stack in each lens barrel directs light through the at least one window in the at least one carrier and focuses the light onto one of the plurality of focal planes; anda module cap mounted over the lens barrels, where the module cap includes at least one opening that admits light into the lens stacks contained within the plurality of lens barrels;wherein the plurality of lens barrels and the plurality of focal planes form an array of cameras comprising: a central reference camera including a Bayer filter; andfour cameras that capture image data located in four corners surrounding the central reference camera.
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