Patent ID: 9080976
Filing Date: 2015-07-14
Classification: G01N,Y10T

Abstract:
1. A measuring device for measuring singlet oxygen luminescence being excited by at least one photosensitizer, the measuring device comprising: a photosensitive detector; an excitation source configured for radiating excitation light from a plurality of emission positions into a measurement volume for exciting the at least one photosensitizer, said excitation source containing at least one light emitting diode directly generating the excitation light for exciting the at least one photosensitizer in the measurement volume; and a control and evaluation unit coupled to said photosensitive detector and said excitation source; wherein the measuring device is embodied such that ambient light from outside cannot be incident on the photosensitive detector or on the measurement volume; wherein the measurement volume and said photosensitive detector are aligned along a vertical axis, said measurement volume is disposed above said photosensitive detector; and further comprising an optical module disposed between the measurement volume and said photosensitive detector, said optical module having an imaging optical unit imaging at least part of luminescence radiation generated in the measurement volume onto an active area of said photosensitive detector; wherein said excitation source contains at least one exchangeable excitation module which can be placed onto said optical module; and wherein: said optical module contains an adjustable iris diaphragm with an adjusting lever; and said excitation module has an excitation module carrier with a groove formed therein and into said groove said adjusting lever of said iris diaphragm engages in a course of said excitation module being disposed on said optical module, said groove shaped such that said adjusting lever of said iris diaphragm of said optical module connects to said excitation module in a form-locking manner when said iris diaphragm is open, and separation of said excitation module and said optical module is possible only in a closed position of said iris diaphragm.