Image capture at varying optical powers
AssigneeMeta Platforms Technologies, LLC
InventorsYoumin Wang, Yatong An
Life of this patent
Estimating the term…
Abstract
An imaging device includes an image pixel array and a plurality of micro-electro-mechanical systems (MEMS) Alvarez tunable lenses disposed over regions of the imaging pixels. The MEMS Alvarez tunable lenses are configured to be adjusted to varying optical powers to focus image light to the plurality of imaging pixels at varying focus depths. Processing logic is configured to drive the plurality of MEMS Alvarez tunable lenses to provide varying optical powers to focus the image light to the imaging pixels during a plurality of image captures with the imaging pixels.
Claims20
A head mounted device comprising:
- an illumination module configured to illuminate an eyebox region with non-visible illumination light;
- an imaging device configured to sense returning light that is the non-visible illumination light reflecting or scattering from the eyebox region, wherein the imaging device includes:
- an image pixel array including a plurality of imaging pixels;
- and
- a plurality of micro-electro-mechanical systems (MEMS) Alvarez tunable lenses disposed over regions of the imaging pixels;
- and
- processing logic configured to drive the plurality of MEMS Alvarez tunable lenses to provide varying optical powers to focus the returning light to the imaging pixels during a plurality of image captures with the imaging pixels, wherein the processing logic is configured to combine the image captures at the varying optical powers into a light field image.
An imaging device comprising:
- an image pixel array including a plurality of imaging pixels;
- a plurality of micro-electro-mechanical systems (MEMS) Alvarez tunable lens disposed over regions of the imaging pixels, wherein the imaging device is configured to sense returning light that is a non-visible illumination light reflecting or scattering from an eyebox region;
- and
- processing logic configured to drive the plurality of MEMS Alvarez tunable lenses to provide varying optical powers to focus the returning light to the imaging pixels during a plurality of image captures with the imaging pixels, wherein the processing logic is configured to combine the image captures at the varying optical powers into a light field image.
A system comprising:
- an illumination module configured to illuminate an eyebox region with non-visible illumination light;
- an imaging device configured to sense returning light that is the non-visible illumination light reflecting or scattering from an eyebox region, wherein the imaging device includes:
- an image pixel array having a plurality of imaging pixels;
- and
- a plurality of micro-electro-mechanical systems (MEMS) Alvarez tunable lenses disposed over regions of the imaging pixels, wherein the MEMS Alvarez tunable lenses are configured to be adjusted to varying optical powers to focus image light to the plurality of imaging pixels at varying focus depths;
- and
- processing logic configured to drive the plurality of MEMS Alvarez tunable lenses to provide the varying optical powers to focus the image light to the imaging pixels during a plurality of image captures with the imaging pixels, wherein the processing logic is configured to combine the image captures at the varying optical powers into a light field image.
Dependencies are inferred from the claim text.