CN109143596A - A kind of multispectral light source based on prism structure - Google Patents
A kind of multispectral light source based on prism structure Download PDFInfo
- Publication number
- CN109143596A CN109143596A CN201811247984.8A CN201811247984A CN109143596A CN 109143596 A CN109143596 A CN 109143596A CN 201811247984 A CN201811247984 A CN 201811247984A CN 109143596 A CN109143596 A CN 109143596A
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- light
- prism
- wavelengths
- light source
- different wavelengths
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- 239000000523 sample Substances 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims abstract description 3
- 238000010168 coupling process Methods 0.000 claims abstract description 3
- 238000005859 coupling reaction Methods 0.000 claims abstract description 3
- 239000000835 fiber Substances 0.000 claims abstract 4
- 238000004026 adhesive bonding Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 abstract description 12
- 230000005284 excitation Effects 0.000 description 6
- 239000003086 colorant Substances 0.000 description 4
- 239000007850 fluorescent dye Substances 0.000 description 3
- 230000021615 conjugation Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- ABZLKHKQJHEPAX-UHFFFAOYSA-N tetramethylrhodamine Chemical compound C=12C=CC(N(C)C)=CC2=[O+]C2=CC(N(C)C)=CC=C2C=1C1=CC=CC=C1C([O-])=O ABZLKHKQJHEPAX-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
- G02B27/1013—Beam splitting or combining systems for splitting or combining different wavelengths for colour or multispectral image sensors, e.g. splitting an image into monochromatic image components on respective sensors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
- G02B27/102—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/14—Beam splitting or combining systems operating by reflection only
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
本发明公开了一种基于棱镜结构的多光谱光源，包括：LED或者激光，可以根据实际情况，选择不同波长的LED或者激光器；合色棱镜，由多个直角棱镜胶合而成，直角棱镜的表面上镀有特殊膜层，使有些波长的光可以透过，有些波长的光被反射掉，使不同波长的光统一从一个方向出射；耦合透镜，使从一个方向出来的光耦合进光纤探头，提高光的利用率；光纤探头，收集光并传导出去。本发明使用棱镜结构，进行特殊镀膜处理，使不同波长的光同轴共轭，从一个方向出射，然后收集。不同波长的光可以单独控制切换。这种棱镜结构的光源结构紧凑、体积小、光功率高。
The invention discloses a multi-spectral light source based on a prism structure, comprising: LEDs or lasers, LEDs or lasers with different wavelengths can be selected according to actual conditions; It is coated with a special film layer, so that some wavelengths of light can pass through, and some wavelengths of light are reflected, so that different wavelengths of light are uniformly emitted from one direction; the coupling lens allows the light from one direction to be coupled into the fiber probe, Improve the utilization of light; fiber probe, collect light and transmit it out. The invention uses a prism structure and carries out special coating treatment, so that light of different wavelengths is coaxially conjugated, emitted from one direction, and then collected. Different wavelengths of light can be individually controlled to switch. The light source of the prism structure is compact in structure, small in volume and high in optical power.
Description
Technical field
The present invention relates to excitation light source design fields, and in particular to a kind of multispectral light source system.More specifically, this hair
It is bright that light-source system made of a kind of optical density is high, compact-sized, polygon prism is glued is provided.
Background technique
Multispectral light source traditional at present is all that light source is done using white light LEDs, then utilizes the rotation for being mounted with optical filter
It takes turns, the optical filter of different wave length is installed in rotating wheel, which wavelength is needed, colour wheel rotates to specified position, so that it may
To the light for needing wavelength.But this structure, the light of each wavelength, the practical sub-fraction that white light is only utilized, unwanted wave
Long light is all masked by optical filter, and light utilization efficiency is not high.
Color-combination prism is common a kind of optical element in projector, its effect is by three primary colours (RGB) monochromatic light
Image combination is carried out, the multicolour pattern on final screen is formed.In structure, it is the prism by having different plated films, by glue
It closes.Reflection to red light film inside color-combination prism is mirror for feux rouges, feux rouges can be made to reflect, but for
It is equivalent to a sheet glass for blue light and green light, can be through.When it works in projector, redgreenblue image difference
From three direction incidences, after three color prisms reflect, it is emitted from same direction, is formed colored image.
In field of biomedicine, histofluorescence excitation often uses ultraviolet light, purple light or blue light as exciting light, uses
Spectrometer or photodetector detect fluorescence.Excitation wavelength include common 340nm, 370nm, 390nm, 430nm,
450nm etc..The wavelength of exciting light is not the light of three primary colours, and wavelength has also exceeded 3 kinds, the color-combination prism in projector
Certainly have more than is needed.In DNA detection, common fluorescent dye has FAM, HEX, TAMRA, ROX, CY5 etc., some fluorescence dye
The light of three primary colours can be used as exciting light in material, and some fluorescent dyes need yellow light, orange light as exciting light, usual in this way
Projector in color-combination prism be also not suitable for.At present most of DNA detection device on the market be all using white light LEDs or
Halogen lamp, xenon lamp are as excitation light source, then in the rotating wheel for installing an optical filter below, to obtain the excitation of different wave length
Light.
Since the color-combination prism in projector is not applicable, that just redesigns the structure of color-combination prism, closes color rib
Film layer inside mirror carries out coating film treatment again, makes the light of more multi-wavelength, is not that the light of three primary colours can use prism structure,
For other fields other than projector.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of multispectral light sources based on prism structure, there is 5 kinds of excitation waves
Long, every kind of exciting light is incident from different directions, then the same direction outgoing.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is that: it is a kind of based on the multispectral of prism structure
Light source, comprising:
LED or laser can select the LED or laser of different wave length, need to LED according to the actual situation
Either the light of laser carries out collimation or focus processing；
Color-combination prism forms by multiple right-angle prism gluings, and the surface of right-angle prism is coated with to match with each wavelength
Film layer penetrates the light of some wavelength, and the light of some wavelength is reflected, and keeps the light of different wave length unified from a direction
Outgoing becomes coaxial conjugation light beam；
Coupled lens are coupled to light collection in fibre-optical probe after the light of different wave length is emitted from a direction, improve light
Utilization rate；
Fibre-optical probe is collected light and is exported and goes.
Wherein, light is incident from the different sides of prism, and incident light must be collimated light either focus on light beam, and from each
The light of face incidence must be monochromatic light.
Wherein, color-combination prism is formed by multiple right-angle prism gluings, and special plated film has all been done on the surface of right-angle prism
Processing.The different directions of light from color-combination prism are incident, and after coated surface different inside color-combination prism, the light of some wavelength can
It is gone with penetrating, the light of some wavelength is reflected.Last light is all unified to be emitted from a direction, forms coaxial conjugation light beam.
The beneficial effects of the present invention are:
Traditional multispectral light source is all to be then equipped with the optical filter runner of different band logical wave bands using white light LEDs.In this way
Design, the very least a portion of energy of white light is only utilized in each channel, and light utilization efficiency is not high, and volume cannot do it is too small.
In the present invention, the color-combination prism of projector by plated film again, structure is redesigned, and is subsequently used for biomedical neck
Domain.The monochromatic light of 5 kinds of different wave lengths is incident from different directions, is then emitted from the same direction.Due to every kind of wavelength light by
Individual light source provides, so optical power is high, and volume shared by this prism structure is very small, and structure is very compact, does not have
The space of extra waste.Last emergent light passes through coupled lens, coupled into optical fibres probe, light utilization efficiency height.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of multispectral light source system based on prism structure, wherein 1 is light source one, LED
Or laser；2 be light source two, LED or laser；3 be light source three, LED or laser；4 be light source four, LED or laser；5
For light source five, LED or laser；6 be plated film one, and the light of reflection source one, other light can penetrate；7 be plated film two, reflected light
The light in source two, other light can penetrate, and 8 be plated film three, and the light of reflection source three, other light can penetrate；9 be plated film four, instead
The light of light source four is penetrated, other light can penetrate；10 be coupled lens；11 be fibre-optical probe.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
In Fig. 1, entire color-combination prism is formed by 8 right-angle prism gluings, and inside is coated with 4 film layers.Light source 1 is from a left side
Lower section is incident, into after color-combination prism, can penetrate plated film 27, be reflected by plated film 1, be emitted from below, bottom
Plated film 1 is coated on the right side of right-angle prism and on the upside of the right-angle prism of lower left；Light source 22 is from lower right incidence, into conjunction color rib
After mirror, plated film 1 can be penetrated, is reflected by plated film 27, is emitted from below, on the left of the right-angle prism of bottom and bottom right
Plated film 27 is coated on the upside of the right-angle prism of side；Light source 33 into after color-combination prism, can penetrate plated film four from upper left side incidence
9, it is reflected by plated film 38, is emitted from below, is coated on the upside of upper left right-angle prism and on the downside of the right-angle prism in upper right side
Plated film 38；Light source 44 is from upper right side incidence, into after color-combination prism, can penetrate plated film 38, be reflected by plated film 49,
It is emitted from below, is coated with plated film 49 on the downside of upper left right-angle prism and on the upside of the right-angle prism in upper right side；Light source 55 is from just
Top is incident, into after color-combination prism, can penetrate all plated films, be emitted from below.The light of such 5 light sources by setting again
It is all unified to be emitted from below after the color-combination prism of meter.Since incident light source all have passed through collimation or focus processing, so through
Light loss very little after color-combination prism is crossed, then passes through coupled lens 10, further increases the utilization rate of light.Light be coupled collect into
Enter fibre-optical probe 11, finally conducts.
Light-source system structure of the invention is simple, compact, and space utilization rate is high, and plated film is more demanding.Color-combination prism can be with
Depending on actual optical wavelength situation, to select K9 or quartz etc..The light of 5 kinds of wavelength is all the LED by respective wavelength
Either laser provides, and light adds some condenser lenses to do collimation or focus processing before entering color-combination prism.Finally from
When lower section is emitted, coupling focus processing is carried out again to light, so optical power is very high, this is traditional multispectral light source system
What system did not had.Switching between each wavelength only need to control corresponding LED or laser can, do not need to make
It is more many than traditional multispectral light source system features in convenient with stepper motor.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811247984.8A CN109143596A (en) | 2018-10-25 | 2018-10-25 | A kind of multispectral light source based on prism structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811247984.8A CN109143596A (en) | 2018-10-25 | 2018-10-25 | A kind of multispectral light source based on prism structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109143596A true CN109143596A (en) | 2019-01-04 |
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ID=64809457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811247984.8A Pending CN109143596A (en) | 2018-10-25 | 2018-10-25 | A kind of multispectral light source based on prism structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109143596A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113180590A (en) * | 2021-05-06 | 2021-07-30 | 上海观爱医疗科技有限公司 | Multispectral fundus camera light source |
| CN119470173A (en) * | 2025-01-16 | 2025-02-18 | 丹东百特仪器有限公司 | A coaxial three-beam laser particle size analyzer and its measurement method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002250893A (en) * | 2001-02-23 | 2002-09-06 | Ricoh Opt Ind Co Ltd | Method for synthesizing light beams, prism for synthesizing light beams, and multibeam light source device |
| JP2003272221A (en) * | 2002-03-20 | 2003-09-26 | Sharp Corp | Optical pickup device |
| CN1987550A (en) * | 2005-12-22 | 2007-06-27 | 上海飞锐光电科技有限公司 | LED multiple color light combined prism color synthesizer |
| CN102621791A (en) * | 2012-04-20 | 2012-08-01 | 杭州研明光电技术有限公司 | Mixed-light-source liquid-crystal projection light engine system |
| CN105954841A (en) * | 2016-07-11 | 2016-09-21 | 山西傲维光视光电科技有限公司 | Single-fiber laser light source coupling system |
| CN208780918U (en) * | 2018-10-25 | 2019-04-23 | 合肥中科易康达生物医学有限公司 | A Multispectral Light Source Based on Prism Structure |
-
2018
- 2018-10-25 CN CN201811247984.8A patent/CN109143596A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002250893A (en) * | 2001-02-23 | 2002-09-06 | Ricoh Opt Ind Co Ltd | Method for synthesizing light beams, prism for synthesizing light beams, and multibeam light source device |
| JP2003272221A (en) * | 2002-03-20 | 2003-09-26 | Sharp Corp | Optical pickup device |
| CN1987550A (en) * | 2005-12-22 | 2007-06-27 | 上海飞锐光电科技有限公司 | LED multiple color light combined prism color synthesizer |
| CN102621791A (en) * | 2012-04-20 | 2012-08-01 | 杭州研明光电技术有限公司 | Mixed-light-source liquid-crystal projection light engine system |
| CN105954841A (en) * | 2016-07-11 | 2016-09-21 | 山西傲维光视光电科技有限公司 | Single-fiber laser light source coupling system |
| CN208780918U (en) * | 2018-10-25 | 2019-04-23 | 合肥中科易康达生物医学有限公司 | A Multispectral Light Source Based on Prism Structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113180590A (en) * | 2021-05-06 | 2021-07-30 | 上海观爱医疗科技有限公司 | Multispectral fundus camera light source |
| CN119470173A (en) * | 2025-01-16 | 2025-02-18 | 丹东百特仪器有限公司 | A coaxial three-beam laser particle size analyzer and its measurement method |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190104 |
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