Patent · US Active

Birefringent device with application specific pupil function and optical device

US10684402B2 · kind B2 · utility

0Cited by

2References

9Claims

0Family size

Assignee

SONY GROUP CORPORATION · JP

Inventors

Daniel Buehler · Warsaw, US
Markus Kamm · Karlsruhe, DE
Marco Hering · Stuttgart, DE

Key dates

Filing date	Aug 27, 2014
Grant date	Jun 16, 2020
Priority date	—
Expiry date	Dec 1, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG02B2207/129
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A birefringent device, which is configured to be mounted in an optical path of an optical system, has an effective area in a pupil plane. The birefringent device affects different polarization states differently and position-dependently. The birefringent device realizes a first pupil function assigned to a first polarization state and a second different pupil function assigned to a second polarization state. The pupil functions may be optimized to achieve various specific optical properties like extended depth of field.

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