EP 1218777 A4 20051228 - MICROLENS ARRAYS HAVING HIGH FOCUSING EFFICIENCY
Title (en)
MICROLENS ARRAYS HAVING HIGH FOCUSING EFFICIENCY
Title (de)
MIKROLINSENMATRIX MIT HOHER FOKUSSIERUNGSEFFIZIENZ
Title (fr)
MOSAIQUE DE MICROLENTILLES PRESENTANT UN RENDEMENT FOCAL ELEVE
Publication
Application
Priority
- US 0141475 W 20010730
- US 22203200 P 20000731
Abstract (en)
[origin: WO0210805A1] Microlens arrays (105) having high focusing efficiencies are provided. The high focusing efficiencies are achieved by accurately producing the individual microlenses making up the array at high fill factors. Arrays of positive microlenses are produced by forming a master having a concave surface-relief pattern (101) in a positive photoresist (21) using direct laser writing. Through this approach, the problems associated with the convolution of a finite laser beam with a desired profile for a microlens are overcome. The microlens arrays of the invention have focusing efficiencies of at least 75%.
IPC 1-7
IPC 8 full level
B29C 33/38 (2006.01); G02B 3/00 (2006.01); B29L 11/00 (2006.01)
CPC (source: EP KR)
G02B 3/00 (2013.01 - KR); G02B 3/0031 (2013.01 - EP); G02B 3/0043 (2013.01 - EP); G02B 3/0056 (2013.01 - EP); H01L 27/14627 (2013.01 - EP)
Citation (search report)
- No further relevant documents disclosed
- See references of WO 0210805A1
Designated contracting state (EPC)
DE DK FR GB NL
DOCDB simple family (publication)
WO 0210805 A1 20020207; AU 8351401 A 20020213; CN 1200304 C 20050504; CN 1386204 A 20021218; EP 1218777 A1 20020703; EP 1218777 A4 20051228; JP 2004505307 A 20040219; KR 100878966 B1 20090119; KR 20020044154 A 20020614; TW 200502586 A 20050116; TW I238266 B 20050821; TW I241415 B 20051011
DOCDB simple family (application)
US 0141475 W 20010730; AU 8351401 A 20010730; CN 01802235 A 20010730; EP 01962321 A 20010730; JP 2002515480 A 20010730; KR 20027004154 A 20020329; TW 90118831 A 20010731; TW 93126107 A 20010731