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Multispectral Sensing System and Method
| Content Provider | The Lens |
|---|---|
| Abstract | A multispectral sensing device is disclosed. The sensing device may comprise an array of pixel units. Each of the pixel units may comprise four pixels in a two by two configuration. Each of the pixels may comprise a plurality of sub-pixels. Each of the pixel units may include at least one pixel that includes at least two sub-pixels configured to detect light of different wavelengths. |
| Related Links | https://www.lens.org/lens/patent/011-855-406-871-950/frontpage |
| Language | English |
| Publisher Date | 2019-12-26 |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Patent |
| Jurisdiction | United States of America |
| Date Applied | 2019-08-29 |
| Applicant | Cista Sys Corp |
| Application No. | 201916555505 |
| Claim | A multispectral sensing device, comprising: a plurality of pixels, each of the pixels comprising: a plurality of sub-pixels, at least one of the sub-pixels comprising: a tunable optical filter, wherein the tunable optical filter has a wavelength sensing range that is tunable. The multispectral sensing device of claim 1 , wherein the at least one of the sub-pixels further comprises: a photodiode disposed below the optical filter, wherein the photodiode is configured to detect the light passed through the optical filter. The multispectral sensing device of claim 2 , wherein the at least one of the sub-pixels further comprises: a μlens disposed above the optical filter, wherein the μlens is configured to direct impinging light to pass through the optical filter. The multispectral sensing device of claim 1 , wherein the at least one of the sub-pixels comprises: a first sub-pixel comprising a first tunable optical filter; and a second sub-pixel comprising a second tunable optical filter; wherein the first tunable optical filter is tunable to a different wavelength sensing range than the second tunable optical filter. The multispectral sensing device of claim 1 , further comprising: a processing circuit coupled to each tunable optical filter and configured to tune a filtering range of each tunable optical filter. The multispectral sensing device of claim 2 , further comprising: a processing circuit coupled to the photodiodes of the sub-pixels, wherein the processing circuit is configured to obtain a reading of at least one photodiode in one of the pixels, and output a pixel reading based on the reading of the at least one photodiode. The multispectral sensing device of claim 6 , wherein: the processing circuit is further configured to obtain sub-pixel readings of a plurality of the photodiodes in one of the pixels, and output a pixel reading based on a sum of the sub-pixel readings. The multispectral sensing device of claim 6 , wherein: the processing circuit is further configured to obtain a sub-pixel reading of one of the photodiodes in one of the pixels, and output a pixel reading based on the sub-pixel reading. The multispectral sensing device of claim 1 , further comprising: an array of pixel units, each comprising a plurality of the pixels. The multispectral sensing device of claim 9 , wherein each of the pixel units comprises: four of the pixels in a two by two configuration. The multispectral sensing device of claim 10 , wherein the array is a Bayer-pattern array. The multispectral sensing device of claim 9 , wherein: each of the pixels comprises four sub-pixels; each of the pixel units comprises sixteen sub-pixels; and the sixteen sub-pixels are configured to detect light of different wavelengths or wavelength bands. An apparatus, comprising: a pixel, comprising: a plurality of sub-pixels, at least one of the sub-pixels comprising: a tunable optical filter, wherein the tunable optical filter has a wavelength sensing range that is tunable. The apparatus of claim 13 , wherein the at least one of the sub-pixels further comprises: a photodiode disposed below the optical filter, wherein the photodiode is configured to detect the light passed through the optical filter. The apparatus of claim 14 , wherein the at least one of the sub-pixels further comprises: a μlens disposed above the optical filter, wherein the μlens is configured to direct impinging light to pass through the optical filter. The apparatus of claim 13 , wherein the at least one of the sub-pixels comprises: a first sub-pixel comprising a first tunable optical filter; and a second sub-pixel comprising a second tunable optical filter; wherein the first tunable optical filter is tunable to a different wavelength sensing range than the second tunable optical filter. The apparatus of claim 13 , further comprising: a processing circuit coupled to each tunable optical filter and configured to tune a filtering range of each tunable optical filter. The apparatus of claim 14 , further comprising: a processing circuit coupled to the photodiodes of the sub-pixels, wherein the processing circuit is configured to obtain a reading of at least one photodiode in the pixel, and to output a pixel reading based on the reading of the at least one photodiode. The apparatus of claim 18 , wherein: the processing circuit is further configured to obtain sub-pixel readings of a plurality of the photodiodes in the pixel, and output a pixel reading based on a sum of the sub-pixel readings. The apparatus of claim 18 , wherein: the processing circuit is further configured to obtain a sub-pixel reading of one of the photodiodes in the pixel, and output a pixel reading based on the sub-pixel reading. |
| CPC Classification | Measurement Of Intensity; Velocity; Spectral Content; Polarisation; Phase Or Pulse Characteristics Of Infrared; Visible Or Ultraviolet Light;Colorimetry;Radiation Pyrometry IMAGE DATA PROCESSING OR GENERATION; IN GENERAL OPTICAL ELEMENTS; SYSTEMS OR APPARATUS PICTORIAL COMMUNICATION; e.g. TELEVISION |
| Extended Family | 159-977-226-598-304 171-880-728-466-030 011-855-406-871-950 044-509-193-096-377 176-718-451-579-425 |
| Patent ID | 20190391306 |
| Inventor/Author | Li Zhaojian Komori Hirofumi |
| IPC | G02B5/20 G02B3/00 G06T3/40 |
| Status | Active |
| Owner | Cista System Corp |
| Simple Family | 159-977-226-598-304 044-509-193-096-377 011-855-406-871-950 171-880-728-466-030 176-718-451-579-425 |
| CPC (with Group) | G01J3/2803 G01J3/2823 G01J2003/2826 G01J2003/2813 G06T3/4015 G02B5/201 G02B3/0056 H04N25/135 |
| Issuing Authority | United States Patent and Trademark Office (USPTO) |
| Kind | Patent Application Publication |
