EP 0391287 B1 19960522 - Operating lamp
Title (en)
Operating lamp
Title (de)
Operationsleuchte
Title (fr)
Lampe chirurgicale
Publication
Application
Priority
- DE 8903955 U 19890331
- DE 8903957 U 19890331
Abstract (en)
[origin: EP0391287A1] An operating lamp (10) having one or more spotlights (25) each with a light source (50) is specified, which is screened in the direction of emission by a counter reflector (52). The light flux is focused by the counter reflector (52) and a reflector (54) onto an optical system (60) which terminates the housing in the direction of emission. In order to guarantee homogeneous illumination even of deep surgical wounds, the optical system (60) is constructed as a Fresnel lens composed of annular prims (65), which contains a dioptric central region (64) and a catadioptric edge region (62). The edge gradient and the heights of the annular prisms (65) are dimensioned such that the light bundles emerging from the Fresnel lens (60) intersect the optical axis (67) at a distance which is larger the smaller the distance at which the light bundle emerges from the Fresnel lens (60) remote from the optical axis (67). <IMAGE>
IPC 1-7
IPC 8 full level
A61B 19/00 (2006.01); F21S 8/00 (2006.01); F21V 5/04 (2006.01)
CPC (source: EP US)
F21S 8/043 (2013.01 - EP US); F21V 3/02 (2013.01 - EP US); F21V 5/02 (2013.01 - EP US); F21V 5/045 (2013.01 - EP US); F21V 7/0025 (2013.01 - EP US); F21V 7/28 (2018.01 - EP US); F21V 14/06 (2013.01 - EP US); F21V 7/0008 (2013.01 - EP US); F21V 21/28 (2013.01 - EP US); F21W 2131/20 (2013.01 - EP US); F21W 2131/205 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0391287 A1 19901010; EP 0391287 B1 19960522; AT E138460 T1 19960615; DE 59010332 D1 19960627; DK 0391287 T3 19960826; ES 2087095 T3 19960716; GR 3020262 T3 19960930; JP H0332662 A 19910213; US 5128848 A 19920707
DOCDB simple family (application)
EP 90106228 A 19900331; AT 90106228 T 19900331; DE 59010332 T 19900331; DK 90106228 T 19900331; ES 90106228 T 19900331; GR 960401641 T 19960619; JP 8731790 A 19900330; US 50161590 A 19900329