Method to design miniature lenses with on-purpose distortion
US11659287B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Jul 9, 2020 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Jul 16, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T5/80
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method to design miniature wide-angle and ultra-wide-angle lenses by using on-purpose distortion to have shorter focal length than usual for a given image sensor size and a desired image projection. This results in optical systems having miniaturization ratio, defined as the ratio between the total track length and the image footprint diameter, smaller than 0.8. The resulting image from these systems having on-purpose distortion can then be processed with a processor to remove the on-purpose distortion and to output an image with the targeted distortion profile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.