Monocentric imaging

Patent metadata

Field	Value
Publication number	US-9482850-B2
Application number	US-201514589879-A
Country	US
Kind code	B2
Filing date	Jan 5, 2015
Priority date	Apr 1, 2011
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

Methods and systems are provided to enable the capture of large (e.g., Gigapixel) images with high image quality using optical imaging systems that have a small form factor. The disclosed systems can be manufactured in a cost effective fashion, and can be readily assembled, aligned, tested and utilized. One such system comprises a monocentric primary optics section that includes one or more surfaces adapted to form a symmetrical arrangement around a common point of origin. The system also includes a secondary optics section that includes a plurality of secondary optics subsections, where each secondary optics subsection can intercept at least a portion of the light collected by the monocentric primary optics section. The combination of the primary optics section and the secondary optics section is adapted to form an image.

First claim

What is claimed is:

1. A system comprising:
a monocentric primary optics section including one or more surfaces adapted to form a symmetrical arrangement around a common point of origin to collect at least a portion of light associated with an image to be formed, and output the collected light;
a secondary optics section including a plurality of secondary optics subsections arranged at different field angles to capture, at the different field angles, different portions of the collected light output by the monocentric primary optics, wherein each secondary optics subsection is adapted to capture at least a portion of the light collected and output by the monocentric primary optics section, wherein the light captured by each secondary optics subsection is used to form a subimage, and wherein combination of the primary optics section and the secondary optics section is adapted to contribute to form the subimages that are continuous and collectively represent the image based on the at least a portion of light collected by the monocentric primary optics section; and
an aperture stop for each combination of the primary optics section-secondary optics subsection, wherein the aperture stop is located within the secondary optics subsection.

2. The system of claim 1 , wherein the monocentric primary optics section is substantially monocentric.

3. The system of claim 1 , wherein each of the secondary optics subsections fits within a conical volume radiating from the common point of origin of the primary optics section.

4. The system of claim 1 , wherein all of the secondary optics subsections have substantially similar shape, material and focal planes.

5. The system of claim 1 , comprising:
a plurality of imaging sensors that are coupled to receive the captured light from the plurality of secondary optics subsections, respectively, to form the continuous subimages; and
a signal processing component that combines the continuous subimages from the imaging sensors into a single image.

6. The system of claim 1 , where at least a portion of the primary optics section provides an optomechanical reference surface for alignment of one of the secondary optics subsections.

7. The system of claim 1 , wherein the primary optics section comprises spherical or hemispherical elements.

8. The system of claim 1 , wherein each secondary optics subsection comprises a plurality of lenses.

9. The system of claim 8 , wherein each secondary optics subsection comprises a field lens near an internal image plane and one or more secondary lenses which form an image of the internal image plane representing the corresponding subimage.

10. The system of claim 1 , wherein at least a portion the secondary optics section provides lateral mechanical registration of the individual remaining elements of the secondary optics section.

11. The system of claim 1 , wherein the image is formed at multiple discrete image regions, each image region corresponding to a field of view captured by a combination of the monocentric primary optics section and a secondary optics subsection and representing a corresponding subimage.

12. The system of claim 11 , further comprising a plurality of image sensing elements positioned at the multiple discrete image regions and configured to sense the corresponding subimages formed at the multiple discrete image regions.

13. A system comprising:
a monocentric primary optics section including one or more surfaces adapted to form a symmetrical arrangement around a common point of origin to collect at least a portion of light associated with an image to be formed, and output the collected light;
a secondary optics section including a plurality of secondary optics subsections arranged at different field angles to capture, at the different field angles, different portions of the collected light output by the monocentric primary optics, wherein each secondary optics subsection is adapted to capture at least a portion of the light collected and output by the monocentric primary optics section, wherein the light captured by each secondary optics subsection is used to form a subimage, and wherein combination of the primary optics section and the secondary optics section is adapted to contribute to form the subimages that are continuous and collectively represent the image based on the at least a portion of light collected by the monocentric primary optics section, wherein each of the secondary optics subsections is adapted to correct on-axis aberrations produced by the monocentric primary optics section, and each of the secondary optics subsections includes a component that is rotationally symmetric around the optical axis of the corresponding secondary optics subsection.

14. The system of claim 13 , comprising an aperture stop for each combination of the primary optics section-secondary optics subsection, wherein the aperture stop is located within the secondary optics subsection.

15. An integrated imaging system, comprising:
a substantially monocentric objective to collect at least a portion of light associated with an image to be formed;
one or more substantially hemispherical three-dimensional optical components positioned to at least partially surround the substantially monocentric objective, where each of the three-dimensional optical components comprises a plurality of optical elements, each of the plurality of optical elements is positioned to capture at least a portion of the light collected by the substantially monocentric objective at a particular field of view; and
a plurality of image sensors, wherein each image sensor of the plurality of image sensors is integrated into a corresponding subsection of a wafer level camera optics section, wherein the plurality of image sensors are configured to receive the light captured by corresponding optical elements to form continuous subimages when combined form the image.

16. The system of claim 15 , wherein each three-dimensional optical component-is structured to correct on-axis aberrations produced by the substantially monocentric objective.

17. A method, comprising:
receiving light at a substantially monocentric primary optics section of a substantially monocentric multi-scale imaging device, the substantially monocentric primary optics section comprising one or more surfaces adapted to form a substantially symmetrical arrangement around a common point of origin; and
forming an image using a secondary optics section of the substantially monocentric multi-scale imaging device, the secondary optics section comprising a plurality of secondary optics subsections arranged at different field angles to capture portions of light output by the substantially monocentric primary optics at the different field angles, wherein each secondary optics subsection is adapted to capture at least a portion of the light received by the substantially monocentric primary optics section, the light captured by each secondary optics subsection used to produce a corresponding subimage; and
providing an aperture stop for each combination of the primary optics section-secondary optics subsection within the secondary optics subsection of the substantially monocentric multi-scale imaging device, wherein forming the image comprises combining the subimages that are continuous produced by the secondary optics subsections into a single image.

18. The method of claim 17 , further comprising aligning a secondary optics subsection using at least a portion of the primary optics section as an optomechanical reference surface.

19. The method of claim 17

Assignees

• Univ California

Inventors

• Ford Joseph E
• Tremblay Eric

Classifications

• H04N23/45

  for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images · CPC title

• H04N5/2258

  Electricity · mapped topic

• G02B7/027

  the lens being in the form of a sphere or ball · CPC title

• G02B3/0062

  Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between · CPC title

• G02B13/06

  Panoramic objectives; So-called "sky lenses" {including panoramic objectives having reflecting surfaces} · CPC title