EP 0770224 A4 19981125 - HIGH SPEED OPTICAL SYSTEM
Title (en)
HIGH SPEED OPTICAL SYSTEM
Title (de)
OPTISCHES SYSTEM MIT HOHER GESCHWINDIGKEIT
Title (fr)
SYSTEME OPTIQUE GRANDE VITESSE
Publication
Application
Priority
- NZ 9500051 W 19950607
- NZ 26069694 A 19940607
Abstract (en)
[origin: WO9534013A1] The present invention provides a lens system and/or a method of imaging onto an imaging detector. The lens system and method are used in focusing substantially parallel incident light onto the said detector. The lens system comprises: (a) a concentric spherical Cassegrain-like system of two mirrors; (b) a concentric spherical focal reducer; (c) a transfer lens system which combines the concentricity of the Cassegrain-like system of two mirrors and of the contrentric spherical focal reducer by imaging the first centre of concentricity that is of the system of two mirrors onto the second centre of cencentricity, that is, of the focal reducer to thereby provide a single optically cencentric system which combines their advantages. Also present in the system are: (d) means to correct the sum of the spherical aberation of all the spherical mirros in the entire system and (e) an aperture stop.
IPC 1-7
IPC 8 full level
G02B 17/08 (2006.01)
CPC (source: EP)
G02B 17/0808 (2013.01); G02B 17/082 (2013.01); G02B 17/084 (2013.01); G02B 17/0852 (2013.01); G02B 17/0888 (2013.01)
Citation (search report)
- [A] DE 3121044 A1 19820930 - WIEDEMANN ERWIN DR ING
- [A] US 3711184 A 19730116 - AMON M, et al
- [XD] PATENT ABSTRACTS OF JAPAN vol. 098, no. 007 31 March 1998 (1998-03-31)
- See references of WO 9534013A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9534013 A1 19951214; AU 2684795 A 19960104; AU 686393 B2 19980205; CA 2192328 A1 19951214; EP 0770224 A1 19970502; EP 0770224 A4 19981125; JP H10505432 A 19980526
DOCDB simple family (application)
NZ 9500051 W 19950607; AU 2684795 A 19950607; CA 2192328 A 19950607; EP 95922012 A 19950607; JP 50070996 A 19950607