EP 1107859 A4 20060419 - METHOD FOR MAKING OPTICAL MASTERS USING INCOHERENT LIGHT
Title (en)
METHOD FOR MAKING OPTICAL MASTERS USING INCOHERENT LIGHT
Title (de)
VERFAHREN ZUR HERSTELLUNG VON OPTISCHEN FORMMATRIZEN UNTRE BENUTZUNG VON INKOHÄRENTEM LICHT
Title (fr)
PROCEDE DE FABRICATION DE GABARITS MATRICES OPTIQUES AU MOYEN DE LUMIERE INCOHERENTE
Publication
Application
Priority
- US 9910249 W 19990507
- US 7502398 A 19980508
- US 13739798 A 19980820
Abstract (en)
[origin: WO9958319A1] Improved methods for generating diffuser masters having randomly distributed speckle pattern which are suitable for making seamless light diffusers in various sizes at a low cost. The methods use an incoherent light source (26) which is passed through optical element (29) and used to expose a photoresist (24) coated on a suitable substrate (25) through a mask pattern (23).
IPC 8 full level
G02B 5/02 (2006.01); G03H 1/06 (2006.01); G02B 5/32 (2006.01); G03F 7/20 (2006.01); G03H 1/20 (2006.01)
CPC (source: EP)
Citation (search report)
- No further relevant documents disclosed
- See references of WO 9958319A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 9958319 A1 19991118; EP 1107859 A1 20010620; EP 1107859 A4 20060419; JP 2002514776 A 20020521; JP 4458394 B2 20100428
DOCDB simple family (application)
US 9910249 W 19990507; EP 99921859 A 19990507; JP 2000548145 A 19990507