# US 11,115,573 B2 · Hyperspectral plenoptic camera > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,115,573 B2 - Document ID: US11115573B2 - Status: Granted - Kind: B2 - Application number: 16/413,231 - Filed: 2019-05-15 - Published: 2019-09-05 - Granted: 2021-09-07 - Earliest claimed: 2016-06-29 - Assignees: United States of America as represented by the Administrator of NASA - Applicants: United States of America AS Represented By the Administrator of Nasa; Auburn University - Inventors: Timothy W. Fahringer; William Hutchins; Paul M. Danehy; Brian S. Thurow - Web page: https://patentgrep.com/patent/US11115573B2 ## CPC - H04N 23/55: Optical parts specially adapted for electronic image sensors; Mounting thereof - H04N 23/957: Light-field or plenoptic cameras or camera modules - G02B 5/20: Filters (polarising elements G02B5/30) - G02B 27/0961: {Lens arrays (lens arrays per se G02B3/0006)} - H04N 23/54: Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract Methods, systems, and apparatuses for a hyperspectral plenoptic camera. A hyperspectral plenoptic camera may be configured with a filter in the aperture plane of the camera. The filter may selectively transmit radiated wavelengths to a microlens array, which may focus and transmit the wavelengths to an image sensor based on, e.g., the location and intensity of the wavelengths. One or more lenses and/or an iris may be configured to collect, focus, and/or transmit wavelengths to and from the filter. The filter may be located between two lenses, and the distance between the two lenses may be based on a diameter of an aperture of the plenoptic camera. ## Claims ### Claim 1 A plenoptic camera, comprising: a filter located between a first lens and a second lens in an aperture plane of the plenoptic camera, wherein the filter is configured to selectively permit transmission of wavelengths; a micro lens array, wherein each micro lens of the micro lens array is configured to, based on a location of the wavelengths, focus the wavelengths from the filter; wherein a distance between the micro lens array and the second lens is based on a diameter of an aperture of the plenoptic camera; and an image sensor, configured to receive the focused wavelengths. ### Claim 2 (depends on 1) The plenoptic camera of claim 1, wherein one of the two lenses is configured to be adjusted with respect to the image sensor. ### Claim 3 (depends on 1) The plenoptic camera of claim 1, wherein the filter is configured to selectively transmit a continuous range of wavelengths. ### Claim 4 (depends on 1) The plenoptic camera of claim 1, further comprising: an iris, configured to focus the wavelengths relative to the image sensor. ### Claim 5 (depends on 1) The plenoptic camera of claim 1, wherein the filter is located in the aperture plane of the plenoptic camera such that a center of the filter is imaged by a center of a first micro lens of the micro lens array. ### Claim 6 A method comprising: receiving, via an aperture of a plenoptic camera, wavelengths; filtering, using a filter located between a first lens and a second lens located in an aperture plane of the plenoptic camera, the wavelengths, wherein the filtering comprises selectively permitting transmission of the wavelengths; focusing, via a micro lens array and based on a location of the wavelengths, the wavelengths onto a sensor, wherein a distance between the micro lens array and the second lens is based on a diameter of an aperture of the plenoptic camera; and outputting, by the plenoptic camera and using an image sensor, an indication of the location and intensity of the wavelengths. ### Claim 7 (depends on 6) The method of claim 6, wherein one of the two lenses is configured to be adjusted with respect to the image sensor. ### Claim 8 (depends on 6) The method of claim 6, wherein the filter is configured to selectively transmit a continuous range of wavelengths. ### Claim 9 (depends on 6) The method of claim 6, further comprising: focusing, using an iris of the plenoptic camera and based on a location of the image sensor, the wavelengths. ### Claim 10 (depends on 6) The method of claim 6, wherein the filter is located in the aperture plane of the plenoptic camera such that a center of the filter is imaged by a center of a first micro lens of the micro lens array. ### Claim 11 A system comprising: a filter located between a first lens and a second lens in an aperture plane of a plenoptic camera, and a sensor region of the plenoptic camera; wherein the filter is configured to: receive, via an aperture, wavelengths; and filter the wavelengths by selectively transmitting a first set of the wavelengths to the sensor region; and wherein the sensor region is configured to: receive the first set of the wavelengths; and focus, using a micro lens array and based on a location of the wavelengths, the wavelengths onto an image sensor, wherein a distance between the micro lens array and the second lens is based on a diameter of an aperture of the plenoptic camera. ### Claim 12 (depends on 11) The system of claim 11, wherein one of the two lenses is configured to be adjusted with respect to the image sensor. ### Claim 13 (depends on 11) The system of claim 11, wherein the filter is configured to selectively transmit a continuous range of wavelengths. ### Claim 14 (depends on 11) The system of claim 11, further comprising: an iris, configured to focus the wavelengths relative to the image sensor.