Global Patent Index - EP 3022602 A1

EP 3022602 A1 20160525 - ANTI-SPECKLE TRANSMISSIVE DIFFUSER SCREEN

Title (en)

ANTI-SPECKLE TRANSMISSIVE DIFFUSER SCREEN

Title (de)

LICHTDURCHLÄSSIGER ANTI-SPECKLE-DIFFUSORSCHIRM

Title (fr)

ÉCRAN DIFFUSEUR TRANSMISSIF ANTI-TAVELURE

Publication

EP 3022602 A1 20160525 (FR)

Application

EP 14790132 A 20140711

Priority

  • FR 1356950 A 20130715
  • FR 2014051796 W 20140711

Abstract (en)

[origin: WO2015007984A1] The invention relates to a transmissive diffuser screen comprising a transparent support (50), a first face of the support being covered with a first diffusive micro-structure (52) and a second face of the support being covered with an optical focusing structure (54) of which the primary focal point is disposed at a lighting source (36) of the screen and of which the surface is covered with a second diffusive micro-structure (56).

IPC 8 full level

G03B 21/62 (2006.01)

CPC (source: EP US)

G02B 3/08 (2013.01 - EP US); G02B 5/021 (2013.01 - EP US); G02B 5/0231 (2013.01 - US); G02B 5/0278 (2013.01 - EP US); G02B 5/0294 (2013.01 - EP US); G02B 7/025 (2013.01 - US); G02B 27/48 (2013.01 - EP US); G03B 21/2033 (2013.01 - US); G03B 21/62 (2013.01 - EP US)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

FR 3008498 A1 20150116; EP 3022602 A1 20160525; US 2016170225 A1 20160616; WO 2015007984 A1 20150122

DOCDB simple family (application)

FR 1356950 A 20130715; EP 14790132 A 20140711; FR 2014051796 W 20140711; US 201414904849 A 20140711