Global Patent Index - EP 0222060 A3

EP 0222060 A3 19880427 - DEVICE FOR THE TREATMENT OF MATERIAL BY ULTRAVIOLET RAYS

Title (en)

DEVICE FOR THE TREATMENT OF MATERIAL BY ULTRAVIOLET RAYS

Publication

EP 0222060 A3 19880427 (DE)

Application

EP 86109661 A 19860715

Priority

DE 3526082 A 19850720

Abstract (en)

[origin: EP0222060A2] A device comprises a UV radiation source and a reflector. The reflector preferably consists of two parabolic or elliptical half- shells. One or more coatings for the reflection of UV radiation and, underneath, a coating for absorbing the longer-wavelength part of the spectrum of the UV radiation source are provided on the reflector surface. A diffusion barrier layer is arranged between these coatings. The reflection layer consists of alternately low-refracting dielectric layers of SiO2 and high-refracting layers of HfO2, the diffusion barrier layer consists of a dielectric layer of SiO2 having a physical thickness of at least 0.5 mu and the absorption layer consists of a black anodically oxidised layer, black chromium- or nickel-plating, anodisation or bronzing of a polished copper coating or nickel coating of the reflector body consisting of aluminium alloy. <IMAGE>

IPC 1-7

B01J 19/12; F21V 7/22; B41M 7/00; B41F 23/04

IPC 8 full level

B01J 19/12 (2006.01); B41F 23/04 (2006.01); E04G 3/24 (2006.01); E04G 3/30 (2006.01); E04G 21/32 (2006.01); G02B 5/08 (2006.01); G02B 5/10 (2006.01); G02B 27/00 (2006.01); G03F 7/20 (2006.01)

CPC (source: EP)

B41F 23/0409 (2013.01); E04G 3/24 (2013.01); E04G 3/243 (2013.01); E04G 3/30 (2013.01); E04G 21/3204 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI NL SE

DOCDB simple family (publication)

DE 3526082 A1 19870129; DE 3526082 C2 19880922; AU 590592 B2 19891109; AU 6019586 A 19870122; EP 0222060 A2 19870520; EP 0222060 A3 19880427

DOCDB simple family (application)

DE 3526082 A 19850720; AU 6019586 A 19860715; EP 86109661 A 19860715