Global Patent Index - EP 0991961 A1

EP 0991961 A1 2000-04-12 - BEAM-SPLITTING ELEMENT FOR DIVIDING A LIGHT BEAM AND DEVICE COMPRISING SAID ELEMENT USED FOR MEASURING A PERIODICALLY FLUCTUATING MAGNETIC FIELD

Title (en)

BEAM-SPLITTING ELEMENT FOR DIVIDING A LIGHT BEAM AND DEVICE COMPRISING SAID ELEMENT USED FOR MEASURING A PERIODICALLY FLUCTUATING MAGNETIC FIELD

Title (de)

STRAHLTEILERKÖRPER ZUM AUFSPALTEN EINES LICHTSTRAHLS UND ANORDNUNG ZUR MESSUNG EINES PERIODISCH SCHWANKENDEN MAGNETFELDES MIT EINEM SOLCHEN STRAHLTEILERKÖRPER

Title (fr)

ELEMENT SEPARATEUR DE FAISCEAUX SERVANT A DIVISER UN FAISCEAU LUMINEUX ET DISPOSITIF POUR MESURER UN CHAMP MAGNETIQUE FLUCTUANT DE FA ON PERIODIQUE, AU MOYEN DUDIT ELEMENT

Publication

EP 0991961 A1 (DE)

Application

EP 98934746 A

Priority

  • DE 9801373 W
  • DE 19727473 A

Abstract (en)

[origin: WO9900680A1] The present invention relates to a beam-splitting element (1) which is placed in the light beam (L) unlike traditional beam-splitting cubes. The light beam (L) penetrating into the beam-splitting element (1) through a refraction surface (10) will thus impinge on the partially transparent surface (11) at an incidence angle ( beta ) of less than 45 DEG and preferably less than 22.5 DEG . This element is characterised by its polarisation neutrality and by the fact that it is not sensitive to temperature. The element of the present invention can be used advantageously in current transformers that include a retro-reflection device.

IPC 1-7 (main, further and additional classification)

G02B 5/04; G01R 33/032; G02B 27/14

IPC 8 full level (invention and additional information)

G01R 33/032 (2006.01); G02B 5/04 (2006.01); G02B 27/12 (2006.01)

CPC (invention and additional information)

G02B 27/144 (2013.01); G01R 33/0322 (2013.01); G02B 5/04 (2013.01)

Citation (search report)

See references of WO 9900680A1

Designated contracting state (EPC)

CH DE FR GB LI

EPO simple patent family

WO 9900680 A1 19990107; EP 0991961 A1 20000412

INPADOC legal status


2002-06-12 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20011203

2000-04-12 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19991217

2000-04-12 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): CH DE FR GB LI