CN102620825A - LED white-light illuminating device for confocal Raman spectrograph - Google Patents
LED white-light illuminating device for confocal Raman spectrograph Download PDFInfo
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- CN102620825A CN102620825A CN2012100394875A CN201210039487A CN102620825A CN 102620825 A CN102620825 A CN 102620825A CN 2012100394875 A CN2012100394875 A CN 2012100394875A CN 201210039487 A CN201210039487 A CN 201210039487A CN 102620825 A CN102620825 A CN 102620825A
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Abstract
The invention discloses an LED white-light illuminating device for a confocal Raman spectrograph, which is mounted on the side wall of a shell support of the confocal Raman spectrograph. The LED white-light illuminating device is connected with an optical path switching device through light guide optical fibers to focus on white light outputted by the LED white-light illuminating device onto a to-be-detected object through the optical path switching device and a microscopic device, and the white light is reflected and then returns to the optical path switching device to be sent to a video image acquisition device which is used for video observation of the to-be-detected object.
Description
Technical field
The present invention relates to a kind of Raman spectroscopy, more particularly, relate to a kind of LED white light illumination device of confocal Raman spectra appearance.
Background technology
Light and matter interaction have various ways, and scattering is wherein a kind of.In light scattering, the scattered light frequency is different with the incident light frequency is called inelastic scattering, also cries Raman scattering.Raman spectrum just is based on a kind of spectral technique of Raman scattering.In Raman spectrum; The difference of frequency is called as Raman shift between scattered light and the incident light; The research Raman shift can obtain the vibration and the rotation information of chemical bond in the molecule; And the vibration information of lattice in the crystal, so Raman spectrum is a kind of spectral technique of important research material microstructure.The equipment that utilizes the Raman scattering technology that microscopic species is studied at present mainly contains the higher relatively confocal Raman spectra appearance that is combined with the confocal microscopy device of sensitivity; Video imaging apparatus on the confocal Raman spectra appearance, generally all is equipped with and; Be used to take the microscopic appearance of measured matter; And the light fixture that is used for video imaging apparatus is provided in a side of the independent Halogen lamp LED of placing outside the housing of Raman spectrometer, again through light guide optical fiber with the light transmission of Halogen lamp LED to light path switching device.Owing in order to obtain enough brightness, then need have the bigger Halogen lamp LED of enough wattages and volume, and cause the structure of spectrometer to be separated.
Summary of the invention
The object of the present invention is to provide a kind of LED white light illumination device of confocal Raman spectra appearance, utilize this lighting device can effectively improve the problem that the white-light illuminating equipment volume of existing confocal Raman spectra appearance is big and separate with spectrometer architecture.
The LED white light illumination device of confocal Raman spectra appearance includes a square lighttight housing, light guide optical fiber among the present invention; In said housing, be provided with the LED module; Simultaneously be provided with the connector that is used to connect said light guide optical fiber and derives the light that said LED module sends in said housing one side position intermediate, the other end of said light guide optical fiber connects the light path switching device of said confocal Raman spectra appearance.
The opposite side that said connector is set at said housing is provided with heating radiator.
Said LED module is integrated by a plurality of LED tube cores, and is embedded in the surface of said heating radiator by web member, and is covered by said case cover.
Utilize the LED white light illumination device among the present invention can effectively solve the problem that the white-light illuminating equipment volume that has the confocal Raman spectra appearance now is big and separate with spectrometer architecture.
Description of drawings
Fig. 1 is the schematic perspective view one that the confocal Raman spectra appearance of LED white-light illuminating dress among the present invention is installed;
Fig. 2 is the schematic perspective view two that the confocal Raman spectra appearance of LED white light illumination device among the present invention is installed;
Fig. 3 is the structural representation of LED white light illumination device among the present invention;
Fig. 4 is the schematic perspective view of LED white light illumination device among the present invention;
Fig. 5 is the part cross-sectional schematic of LED white light illumination device among the present invention.
Embodiment
To combine accompanying drawing that the specific embodiment among the present invention is done further explain below.
As depicted in figs. 1 and 2; The confocal Raman spectra appearance that LED white light illumination device among the present invention is installed includes laser instrument 1, laser transmission apparatus 2, light path switching device 7, microscope equipment 3, edge switching device of optical fiber 4, the confocal device 5 of signal and spectrum detection device; Wherein: the laser that laser instrument 1 sends through after the transmission of laser transmission apparatus 2 again on the measured matter on the objective table 6 of object lens focusing at microscope equipment 3 of microscope equipment 3; Video acquisition device is collected and transferred to measured matter and light path switching device 7 also further transfers to edge switching device of optical fiber 4 by the Raman signal that produces after the laser excitation and Rayleigh scattering light and laser through the object lens of microscope equipment 3, only has Raman signal to form Raman spectrum at last through confocal device 5 of signal and spectrum detection device behind filtering Rayleigh scattering light and the laser.
Wherein video acquisition device and light path switching device 7 are positioned at the top of microscope equipment 3; And place in the casing; Owing to need throw light on to measured matter in the image acquisition process; LED white light illumination device 9 among the present invention is arranged on the sidewall of shell holder 8 of confocal Raman spectra appearance; This LED white light illumination device 9 includes a square lighttight housing 10, light guide optical fiber 11, is located at the LED module 13 in the housing 10, and is located at the connector 12 that housing 10 1 side centre positions are used for being connected and deriving with light guide optical fiber 11 light that LED module 13 sends, the light path switching device 7 of the other end connection confocal Raman spectra appearance of light guide optical fiber 11.The opposite side that connector 12 is set at housing 10 is provided with heating radiator 14, and LED module 13 is embedded in the surface of heating radiator 14 by web member, and carries out cover cap by housing 10.LED module 13 among the present invention is integrated by a plurality of LED tube cores, like Fig. 3 and shown in Figure 5.So, the light that LED white light illumination device 9 is sent can get into light path switching device 7 through light guide optical fiber 11, and LED white light illumination device 9 is little with respect to the volume of separate type Halogen lamp LED, and brightness is big.
Claims (3)
1. the LED white light illumination device of a confocal Raman spectra appearance; It is characterized in that; It includes a square lighttight housing, light guide optical fiber; In said housing, be provided with the LED module, simultaneously be provided with the connector that is used to connect said light guide optical fiber and derives the light that said LED module sends in said housing one side position intermediate, the other end of said light guide optical fiber connects the light path switching device of said confocal Raman spectra appearance.
2. the LED white light illumination device of confocal Raman spectra appearance according to claim 1 is characterized in that the opposite side that said connector is set at said housing is provided with heating radiator.
3. the LED white light illumination device of confocal Raman spectra appearance according to claim 2 is characterized in that, said LED module is integrated by a plurality of LED tube cores, and is embedded in the surface of said heating radiator by web member, and is covered by said case cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100394875A CN102620825A (en) | 2012-02-22 | 2012-02-22 | LED white-light illuminating device for confocal Raman spectrograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100394875A CN102620825A (en) | 2012-02-22 | 2012-02-22 | LED white-light illuminating device for confocal Raman spectrograph |
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| Publication Number | Publication Date |
|---|---|
| CN102620825A true CN102620825A (en) | 2012-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100394875A Pending CN102620825A (en) | 2012-02-22 | 2012-02-22 | LED white-light illuminating device for confocal Raman spectrograph |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404744A (en) * | 2016-11-01 | 2017-02-15 | 北京华泰诺安技术有限公司 | Portable directive Raman spectrum acquisition system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04250326A (en) * | 1991-01-28 | 1992-09-07 | Yamato Scale Co Ltd | Light branching device for use with correcting device for quantity of illuminating light in colorimetric device |
| JP2000214509A (en) * | 1999-01-21 | 2000-08-04 | Olympus Optical Co Ltd | Microphotographic apparatus |
| US20030151746A1 (en) * | 2001-10-09 | 2003-08-14 | Uwe Sperling | Means for illuminating a measurement surface and device and method for determining the visual properties of objects |
| CN101909515A (en) * | 2008-04-18 | 2010-12-08 | 奥林巴斯株式会社 | Illumination device and image acquisition apparatus |
| CN202013322U (en) * | 2011-03-24 | 2011-10-19 | 江阴极光仪器科技有限公司 | Confocal raman spectrometer provided with LED white-light lighting device |
-
2012
- 2012-02-22 CN CN2012100394875A patent/CN102620825A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04250326A (en) * | 1991-01-28 | 1992-09-07 | Yamato Scale Co Ltd | Light branching device for use with correcting device for quantity of illuminating light in colorimetric device |
| JP2000214509A (en) * | 1999-01-21 | 2000-08-04 | Olympus Optical Co Ltd | Microphotographic apparatus |
| US20030151746A1 (en) * | 2001-10-09 | 2003-08-14 | Uwe Sperling | Means for illuminating a measurement surface and device and method for determining the visual properties of objects |
| CN101909515A (en) * | 2008-04-18 | 2010-12-08 | 奥林巴斯株式会社 | Illumination device and image acquisition apparatus |
| CN202013322U (en) * | 2011-03-24 | 2011-10-19 | 江阴极光仪器科技有限公司 | Confocal raman spectrometer provided with LED white-light lighting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404744A (en) * | 2016-11-01 | 2017-02-15 | 北京华泰诺安技术有限公司 | Portable directive Raman spectrum acquisition system and method |
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Application publication date: 20120801 |