METHOD AND DEVICE FOR COLLECTING AND TRANSMITTING CHEMILUMINESCENCE

PROBLEM TO BE SOLVED: To provide a shout device for collecting and transmitting chemiluminescence which can be operated without requiring precise setting and can be repaired easily. SOLUTION: The device, referred to optical fiber reading head, comprises an optical fiber cable 20 having an optical transmission end 24 to be coupled with the photon counter in a luminometer. The optical fiber cable 20 is split, at the opposite end part, into a plurality of optical fiber ribbons 36 through 54 each having a light receiving end. Each of the optical fiber ribbons 36 through 54 is arranged radially such that the light receiving end forms a tubular passage 90 receiving a sample analyzing tube or a cuvette. Each of the optical fiber ribbons 36 through 54 is held by a core 60 housed in an opaque housing 100.