EP 1095297 A1 20010502 - POLARISATION BEAM SPLITTER
Title (en)
POLARISATION BEAM SPLITTER
Title (de)
POLARISATIONSSTRAHLENTEILER
Title (fr)
SEPARATEUR DE POLARISATIONS
Publication
Application
Priority
- FR 0001242 W 20000509
- FR 9906003 A 19990511
Abstract (en)
[origin: WO0068716A1] The invention concerns a polarisation beam splitter comprising a splitting medium included between two transparent elements with specific indices. The splitting medium comprises a periodic structure of layers of materials with different indices of slight pitch when facing the wavelength of an incident beam, so as to form a uniaxial birefringent medium with an optical axis perpendicular to the plane of the periodic structure. The two transparent elements are made of material with index substantially equal to the ordinary index (no) of the periodic structure.
IPC 1-7
IPC 8 full level
G02B 27/28 (2006.01)
CPC (source: EP US)
G02B 27/283 (2013.01 - EP US)
Citation (search report)
See references of WO 0068716A1
Citation (examination)
- WO 9807279 A1 19980219 - CA NAT RESEARCH COUNCIL [CA], et al
- LI L. ET AL: "Novel Thin Film Polarizing Beam-splitter and Its Application in High Efficiency Projection Displays", IS&T / SPIE CONFERENCE ON PROJECTION DISPLAYS V, vol. 3634, 26 January 1999 (1999-01-26), SAN JOSE, CALIFORNIA, pages 52 - 62
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
FR 2793566 A1 20001117; FR 2793566 B1 20020712; EP 1095297 A1 20010502; US 6384974 B1 20020507; WO 0068716 A1 20001116
DOCDB simple family (application)
FR 9906003 A 19990511; EP 00925417 A 20000509; FR 0001242 W 20000509; US 72027101 A 20010111