Patent · US Active

Optical focusing device

US9594198B2 · kind B2 · utility

1Cited by

10References

13Claims

0Family size

Assignee

COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

Anthony L. Lefebvre · Edina, US
Salim Boutami · Grenoble, FR

Key dates

Filing date	Jan 6, 2016
Grant date	Mar 14, 2017
Priority date	—
Expiry date	Jan 6, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG02B5/18
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An optical reflection focusing device, including a grating including an alternation of first and second regions having different refraction indexes, the grating including a plurality of sub-gratings, each including a plurality of first regions aligned along a plane parallel to the mean plane of the grating, said device including structures such that, for a collimated incident coherent light beam orthogonal to the mean plane of the grating, the rays of the beam reach with a non-zero phase shift different sub-gratings of the device.

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