(19)
(11)EP 3 457 117 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
26.06.2019 Bulletin 2019/26

(43)Date of publication A2:
20.03.2019 Bulletin 2019/12

(21)Application number: 18189965.9

(22)Date of filing:  21.08.2018
(51)International Patent Classification (IPC): 
G01N 21/64(2006.01)
G02B 3/00(2006.01)
G02B 26/08(2006.01)
G01N 21/76(2006.01)
G02B 3/06(2006.01)
(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:
KH MA MD TN

(30)Priority: 25.08.2017 JP 2017162487

(71)Applicant: Fujifilm Corporation
Minato-ku Tokyo 106-8620 (JP)

(72)Inventor:
  • TADA, Takuji
    Kanagawa, 258-8538 (JP)

(74)Representative: Klunker IP Patentanwälte PartG mbB 
Destouchesstraße 68
80796 München
80796 München (DE)

  


(54)FLUORESCENCE SENSOR WITH SELFOC LENS


(57) Provided is a fluorescence reading device capable of narrowing a distance between a lens unit and an observation object to a distance according to a focal length of a refractive index distribution type lens and focusing fluorescence emitted from the observation object on detecting unit without blurring.
Optical fiber sub-bundles equivalent to a light guide unit are buried in lens holding parts of a lens unit. Emission ends of the optical fiber sub-bundles are exposed to upper surfaces of the lens holding parts that face the observation object holding unit. The optical fiber sub-bundles guide the excitation light emitted from the light source and radiate the guided excitation light toward the surface of an observation object that faces the lens unit.







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