87results about How to "Simplified Optical System" patented technology

A micro flow control capillary electrophoresis liquid core waveguide fluorescence detector includes a liquid core waveguide capillary, a laser light source, a photodetector, a high-voltage power supply, an electrode, a liquid storage container, a sample tube, a pinhole diaphragm, a filter and a shadow shield; the device makes use of a liquid core waveguide phenomenon and uses the same liquid corewaveguide capillary as a capillary electrophoresis separation channel and for fluorescence signal transduction. In the invention, the light given out by the laser light source can be not focused by alens but directly radiates on the liquid core waveguide capillary through the pinhole diaphragm; the fluorescence led out by the outlet port of the liquid core waveguide capillary can not be collectedbythe lens but directly enters into the photodetector through the filter. The liquid core waveguide capillary is taken as a micro flow control capillary electrophoresis separation channel and an optica l conduction channel, so as to furthest reduce optical elements, simplify an optical system, make the structure more compact, so as to provide a feasible technical route for developing miniature microflow control analytical instruments.