Anamorphic lens
US10838171B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2020 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | May 29, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An anamorphic lens includes a cylindrical lens group arranged in a direction from an object side to an image side. The cylindrical lens group includes an anamorphic group and together form an imaging group. The anamorphic group includes a first lens, a second lens, and a third lens arranged in a direction of an object side to an image side. The second lens and the third lens may be joined together and the first lens may be a negative optical power biconcave cylindrical lens. Through the optical characteristics of the cylindrical lens in the anamorphic group, the entering horizontal light is compressed while the vertical light path maintains unchanged. The imaging group comprehensively corrects the light so that the horizontal field of view angle is increased by about 33% to achieve a magnification by 1.33 times for an anamorphic shooting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.