Patent · US Active

Add-on anamorphic lens

US12196929B2 · kind B2 · utility

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8References
8Claims
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Key dates

Filing dateSep 13, 2022
Grant dateJan 14, 2025
Priority date—
Expiry dateMar 7, 2043

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B13/08
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Aspects of the invention disclose an external and an add-on anamorphic lens, which comprises a focus group and an anamorphic group disposed in sequence from an object side to an image side along the optical axis. The focus group comprises a first lens and a second lens. The first lens and the second lens are spherical lenses. The anamorphic group includes a third lens, a fourth lens, and a fifth lens. These lenses are cylindrical lenses. The position of the first lens is adjustable and therefore solve the problem of requiring secondary focusing of the prior art.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.