Patent · US Active

Macro lens system and imaging apparatus

US9632289B2 · kind B2 · utility

1Cited by

3References

36Claims

0Family size

Assignees

FUJIFILM Corporation · JP
Carl Zeiss AG · DE

Inventors

Ryoko TOMIOKA · Saitama, JP
Hiroki Saito · Saitama, JP
Aurelian Dodoc · Heidenheim an der Brenz, DE
Michael POLLMANN · Dillenburg, DE
Juergen Klein · Mainz, DE

Key dates

Filing date	Feb 27, 2015
Grant date	Apr 25, 2017
Priority date	—
Expiry date	Feb 27, 2035

Classification

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

Abstract

A macro lens system includes, in this order from an object side: a positive first lens group; a negative second lens group; a positive third lens group; a positive fourth lens group; a positive fifth lens group; and a negative sixth lens group. The first lens group is constituted by three lenses. The second lens group, the fourth lens group, and the fifth lens group are independently moved in the direction of the optical axes thereof when focusing from an object at infinity to an object at a most proximate distance.

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