Title:
FLUORESCENCE DETECTING DEVICE
Document Type and Number:
Japanese Patent JP3636070
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve S/N of a detection signal of a fluorescence detecting device.
SOLUTION: The excitation light from an excitation light source laser device 19 is projected into a detection region by a beam expander 21, a beam scanning element 23, a dichroic mirror 25, and an objective lens 27. The light from the detection region is condensed with the objective lens 27 to provide a parallel light which is sent to a removing filter 31 through the dichroic mirror 25. The filter 31 sends the light from the dichroic mirror 25 after removing an excitation light component. A lens 33 condenses a fluorescence from the filter 31 into a long hole of a slit 35. The fluorescence passing through the long hole of the slit 35 is projected on a concave-surface holographic grating 37. The grating 37 splits the fluorescence from the slit 35, which is imaged on a light receiving surface of a CCD39.
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Inventors:
Shin Nakamura
Application Number:
JP2000393381A
Publication Date:
April 06, 2005
Filing Date:
December 25, 2000
Export Citation:
Assignee:
SHIMADZU CORPORATION
International Classes:
G01J3/18; G01J3/443; G01N21/64; G01N27/447; G01N37/00; (IPC1-7): G01N21/64; G01J3/18; G01J3/443; G01N27/447
Domestic Patent References:
| JP2000074835A | ||||
| JP61213974A | ||||
| JP9243598A | ||||
| JP2002131280A |
Attorney, Agent or Firm:
Shigeo Noguchi