Patent ID: 8696992
Filing Date: 2014-04-15
Classification: G01J,G01N,G02B

Abstract:
1. An optical fiber measurement device comprising: a planar liquid holder having a plurality of liquid holding portions capable of holding a reaction solution containing a fluorescent substance arranged along a flat face; a plurality of light receiving optical fibers for transmitting fluorescence generated in the liquid holding portions; a plurality of light emitting optical fibers for transmitting excitation light into the liquid holding portions; a measurement head capable of being positioned in the entire or part of the plurality of liquid holding portions of the planer liquid holder while supporting a plurality of measurement ends having a bundle of one light receiving end of the light receiving optical fibers receiving the fluorescence and one or two or more light emitting ends of the light emitting optical fibers emitting the excitation light; a light reception selecting element that, by sequentially selecting one by one from the plural light receiving optical fibers and sequentially selecting one by one from plural kinds of wavelength or wavelength bands, sequentially guides light of the selected wavelength or wavelength band of the fluorescence received by the selected light receiving optical fibers to one photoelectric element; and a photoelectric element for sequentially conducting photoelectric conversion on the fluorescence that is selected by the light reception selecting element and guided, wherein the light reception selecting element has: a connecting end arrangement plate supporting a plurality of connecting ends on the opposite side of the light receiving ends of the light receiving optical fibers arranged along a circumference at a predetermined central angle; a light receiving rotary plate provided oppositely, closely to the connecting end arrangement plate and provided to be rotatable concentrically with the circumference of the connecting end arrangement plate; a plurality of optical filters that are arranged on the light receiving rotary plate at a predetermined central angle along a circumference that has a same diameter with the circumference of the connecting end arrangement plate and is concentric therewith, and are optically connectable one by one with each connecting end by rotation of the light receiving rotary plate; and a light receiving optical system provided in the light receiving rotary plate, for allowing light passing each of the optical filters independently enter a central axis region of the light receiving rotary plate, and the photoelectric element is provided to allow introduction of the light entering the central axis region.