Patent · US Active

Screen provided with retroreflective microstructures

US9939639B2 · kind B2 · utility

1Cited by

2References

11Claims

0Family size

Assignee

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

Inventor

Christophe Martinez · Grenoble, FR

Key dates

Filing date	Oct 30, 2017
Grant date	Apr 10, 2018
Priority date	—
Expiry date	Oct 30, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG02B2027/0196
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A retroreflective screen including a first film having a surface including a plurality of microrecesses, each microrecess having a bottom substantially parallel to the mean plane of the screen and first and second lateral walls substantially orthogonal to each other and substantially orthogonal to the bottom, the first and second lateral walls and the bottom of the microrecess joining at a same point and forming a trihedron.

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