EP 1175633 A1 20020130 - IMPROVED COUPLING OF LIGHT FROM A SMALL ARC LAMP TO A LARGER TARGET
Title (en)
IMPROVED COUPLING OF LIGHT FROM A SMALL ARC LAMP TO A LARGER TARGET
Title (de)
VERBESSERTE KOPPLUNG DES LICHTS EINER KLEINEN BOGENLAMPE IN EIN GRÖSSERES OPTISCHES ELEMENT
Title (fr)
COUPLAGE AMELIORE DE LUMIERE A PARTIR D'UNE LAMPE A PETIT ARC VERS UNE CIBLE PLUS GRANDE
Publication
Application
Priority
- US 0004700 W 20000225
- US 30295099 A 19990430
Abstract (en)
[origin: WO0067057A1] A light guide (8) is used to couple as much light as possible from an imaging source (1) having a large numerical aperture into a fiber optic component (7) with a relatively smaller numerical aperture. A tapered cladded rod, tapered fused bundle of optical fibers, tapered hollow reflective tube, CPC or negative lens when used as a light guide, provides for efficient coupling of light into a fiber optic component without loss of flux density. Such a system is especially advantageous when used with an imaging source that produces a very small image spot size with high numerical aperture, such as one producing a 1:1 image like a spherical off-axis reflector.
IPC 1-7
IPC 8 full level
F21V 8/00 (2006.01); G02B 6/26 (2006.01); G02B 6/42 (2006.01); F21Y 101/00 (2016.01)
CPC (source: EP KR)
G02B 6/00 (2013.01 - KR); G02B 6/0006 (2013.01 - EP); G02B 6/0008 (2013.01 - EP); G02B 6/262 (2013.01 - EP); G02B 6/4203 (2013.01 - EP); G02B 6/4206 (2013.01 - EP); G02B 6/421 (2013.01 - EP); G02B 6/4298 (2013.01 - EP)
Citation (search report)
See references of WO 0067057A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0067057 A1 20001109; AU 4003900 A 20001117; BR 0010200 A 20020108; CA 2370508 A1 20001109; CN 1355893 A 20020626; EP 1175633 A1 20020130; JP 2002543467 A 20021217; KR 20020012555 A 20020216; MX PA01011058 A 20020604
DOCDB simple family (application)
US 0004700 W 20000225; AU 4003900 A 20000225; BR 0010200 A 20000225; CA 2370508 A 20000225; CN 00808963 A 20000225; EP 00919336 A 20000225; JP 2000615841 A 20000225; KR 20017013887 A 20011030; MX PA01011058 A 20000225