Patent · US Active

Wide-angle lens

US9703072B2 · kind B2 · utility

2Cited by

2References

19Claims

0Family size

Assignee

Leica Camera AG · DE

Inventor

Alexander Martin · Regensburg, DE

Key dates

Filing date	Sep 2, 2015
Grant date	Jul 11, 2017
Priority date	—
Expiry date	Sep 2, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG02B27/0025
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Wide-angle lens comprising floating element (G2) and aperture stop (BL) comprising a group (G1) of ten lens elements with refractive power sequence arranged in a manner mirrored in sign with respect to the stop (BL), wherein lens elements having positive and negative refractive power are arranged alternately in the light direction upstream and downstream of the stop (BL) and the group (G1) is displaceable for the purpose of focusing.

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