(19)

(11)

EP 3 375 254 A1

(12)

(43) Date of publication: 19.09.2018 Bulletin 2018/38 (21) Application number: 16797624.0 (22) Date of filing: 11.11.2016

(51) International Patent Classification (IPC):  H05B 33/08(2006.01) H01S 3/067(2006.01) G02B 26/08(2006.01) H05B 37/02(2006.01) G02B 26/06(2006.01) (86) International application number: PCT/GB2016/053549 (87) International publication number: WO 2017/081482 (18.05.2017 Gazette 2017/20)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA MD (30) Priority: 13.11.2015 GB 201520076 (71) Applicant: Lancaster University Business Enterprises Limited Lancaster LA1 4YW (GB)	(72) Inventors: YOUNG, Robert James Lancaster Lancashire LA1 4YB (GB) REID, Vincent Lancaster Lancashire LA1 4YF (GB) (74) Representative: Adamson Jones  BioCity Nottingham Pennyfoot Street Nottingham NG1 1GF Nottingham NG1 1GF (GB)