CN107219631A - A kind of utilization LED/light source produces the device of uniform strip light spots - Google Patents
A kind of utilization LED/light source produces the device of uniform strip light spots Download PDFInfo
- Publication number
- CN107219631A CN107219631A CN201710433205.2A CN201710433205A CN107219631A CN 107219631 A CN107219631 A CN 107219631A CN 201710433205 A CN201710433205 A CN 201710433205A CN 107219631 A CN107219631 A CN 107219631A
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- Prior art keywords
- lens
- light source
- cylindrical lens
- uniform strip
- group
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Classifications
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- 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
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0916—Adapting the beam shape of a semiconductor light source such as a laser diode or an LED, e.g. for efficiently coupling into optical fibers
- G02B27/0922—Adapting the beam shape of a semiconductor light source such as a laser diode or an LED, e.g. for efficiently coupling into optical fibers the semiconductor light source comprising an array of light emitters
-
- 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
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/043—Refractors for light sources of lens shape the lens having cylindrical faces, e.g. rod lenses, toric lenses
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6402—Atomic fluorescence; Laser induced fluorescence
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6486—Measuring fluorescence of biological material, e.g. DNA, RNA, cells
-
- 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
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/095—Refractive optical elements
- G02B27/0955—Lenses
- G02B27/0966—Cylindrical lenses
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pathology (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Led Device Packages (AREA)
Abstract
The invention belongs to fluorescent illumination field, especially a kind of utilization LED/light source produces the device of uniform strip light spots；Including light source group, lens group and lens barrel；The light source group and the lens group are arranged on inside the lens barrel；The light source group is provided with the lamp bead array and circuit board being mutually electrically connected, and the circuit board is arranged on rear side of the lamp bead array；The lens group is provided with collimation lens, filter plate, the first cylindrical lens and the second cylindrical lens；The light that the lamp bead array is sent sequentially passes through the collimation lens, filter plate, the first cylindrical lens and the second cylindrical lens；The device that the utilization LED/light source that this programme is provided produces uniform strip light spots enables a device to send uniform strip light spots by the design of light source and lens, is used so as to be adapted to genetic test；The present apparatus is with low cost, excellent effect, is easy to a wide range of popularization.
Description
Technical field
The invention belongs to fluorescent illumination field, especially a kind of utilization LED/light source produces the device of uniform strip light spots.
Background technology
With the development of science and technology, the importance of life science is increasingly highlighted.Fluoroscopic examination should in Life Science Instruments
With extensive, fluorescence is typically inspired to illumination of sample using the laser of specific wavelength, LED/light source etc., certain wave is then detected
The fluorescence of section carrys out the index of judgement sample.In detection of nucleic acids diagnostic field and the instrument and equipment of Immunofluorescence test diagnostic field,
More and more universal as excitation source using LED, its advantage has：
1. it is with low cost；
2. low in energy consumption, power adjusting is convenient；
3. larger luminous power can be obtained with smaller volume, it is easy to the miniaturization of instrument and equipment；
4. the LED of different colours can be selected, then desired wavelength is obtained by filtering.
Application micro-fluidic chip carries out fluoroscopic examination at present and Immunofluorescence test is gradually popularized, and enters to reaction tank array
During row detection, it usually needs excite all detection zones of luminous energy uniform irradiation, and ensure that brightness is sufficiently high, reaction tank leads in addition
It can often design in one long narrow scope, the light beam of more satisfactory excitation source should be also the light beam of a strip,
Therefore a kind of small volume is designed, the device of generation strip light spots low in energy consumption is very important.
For this reason, it is necessary to design a kind of new light supply apparatus, strip source can be uniformly produced.
The content of the invention
The main object of the present invention is to provide the device that a kind of utilization LED/light source produces uniform strip light spots, for overcoming
The problem of existing light source can not send uniform strip light source.
The present invention is achieved in that a kind of utilization LED/light source produces the device of uniform strip light spots, including light source group,
Lens group and lens barrel；The light source group and the lens group are arranged on inside the lens barrel；The light source group is provided with and is mutually electrically connected
Lamp bead array and circuit board, the circuit board is arranged on rear side of the lamp bead array；The lens group is provided with collimation lens, filter
Wave plate, the first cylindrical lens and the second cylindrical lens；The light that the lamp bead array is sent sequentially passes through the collimation lens, filtering
Piece, the first cylindrical lens and the second cylindrical lens；The center of the lamp bead array, the center of the collimation lens, the filtering
Piece center, the center of first cylindrical lens and second cylindrical lens are coaxial；The focal plane of the collimation lens and institute
Plane is overlapped where stating lamp bead array；The lamp bead array is elongated.Light source group sends light source, and lens group sends light source group
The transmission of light source homogenization go out, so that it is guaranteed that the light sent is uniform and in strip.The preferred LED lamp bead particle group of lamp bead array
Into various shapes, the preferred alumina-base material of described circuit board, aluminum base circuit board takes into account the effect of circuit board and heat conduction.
The present invention further technical scheme be：The light source group is additionally provided with radiator, the radiator and the circuit
Plate is connected.The heat derives lens barrel that radiator sends LED/light source, so as to prevent light source overheat from causing danger.
The present invention further technical scheme be：First cylindrical lens and second cylindrical lens are segment knot
Structure.The structure can be preferably guide-lighting.
The present invention further technical scheme be：First cylindrical lens and the second cylindrical lens bottom surface are set relatively
Put.
The present invention further technical scheme be：First cylindrical lens and the second cylindrical lens sphere are set relatively
Put.
The present invention further technical scheme be：The lens group is additionally provided with spacer ring, and the spacer ring is arranged on the collimation
Separated between lens and the filter plate and by both.Spacer ring is used to isolate collimation lens and filter plate, it is to avoid spoilt after contact
Surface.
The present invention further technical scheme be：The lens group is additionally provided with positioning spacer ring, and the positioning spacer ring is arranged on
Between first cylindrical lens and second cylindrical lens.Positioning spacer ring plays that the first cylindrical lens and the second cylinder is saturating
Mirror isolation positions and ensures the parallel effect of convex surface central shaft.
The present invention further technical scheme be：The lens group is additionally provided with trim ring, and the trim ring is arranged on described second
Carried out on the outside of cylindrical lens and to second cylinder spacing.Trim ring plays fixed effect.
The present invention further technical scheme be：The length-width ratio of the lamp bead array is more than 2.
The present invention further technical scheme be：The filter range of the filter plate is the wavelength outside 400-700 nm.
Collimation lens, the focal length of two cylindrical lenses determine according to the size of target area, the distance of illumination in actual applications, institute
Wavelength, the bandwidth equal-specification for the filter plate stated are determined according to application.The focal length variations model of first cylindrical lens, the second cylindrical lens
Enclose very big, even more mostly have from 10mm to 200mm, selection is needed according to application.The size of hot spot homogeneous area with light source with
The distance of target is proportional, such as, is requiring light intensity uniform CV values in the case of 4%, 25mm-30mm focal length（Cylinder
Lens, collimation lens）The uniform light spots not less than 10mm × 100mm scopes can be projected in 0.2m distance, 1.2m's
60mm × 600mm is expanded to apart from hot spot is proportional.Light source range-to-go, the size of hot spot, cylinder are saturating in practical application
The focal length of mirror, the focal length of collimation lens, the size of lamp bead array of particles, these parameters all interact.The ripple of filter plate
Long range of choice is very big, has many kinds from 400nm to 700nm, bandwidth is in 10nm-50nm, in field of nucleic acid detection, these parameters
It is relevant with the fluorescent dye used.
The beneficial effects of the invention are as follows：The device that the utilization LED/light source that this programme is provided produces uniform strip light spots passes through
The design of light source and lens enables a device to send uniform strip light spots, is used so as to be adapted to genetic test；The present apparatus into
This cheap, excellent effect, is easy to a wide range of popularization.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in application, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram for the device that the utilization LED/light source that the embodiment of the present invention 1 is provided produces uniform strip light spots.
Fig. 2 is that the positioning spacer ring for the device that the utilization LED/light source that the embodiment of the present invention 1 is provided produces uniform strip light spots shows
It is intended to.
Fig. 3 is the schematic diagram for the device that the utilization LED/light source that the embodiment of the present invention 2 is provided produces uniform strip light spots.
Fig. 4 is the signal for the installation's power source group that the utilization LED/light source that the embodiment of the present invention 3 is provided produces uniform strip light spots
Figure.
Embodiment
The present invention provides the device that a kind of utilization LED/light source produces uniform strip light spots.Below in conjunction with drawings and Examples
The present invention is described in detail.
Embodiment 1
Referring to shown in Fig. 1-2, the structure for the device for producing uniform strip light spots for a kind of utilization LED/light source that the present invention is provided is shown
It is intended to.The device for producing uniform strip light spots using LED/light source includes light source group 1, lens group 2, and light source group 1 is by LED lamp bead
Grain array 13 is welded on the aluminum base circuit board 12 of held against heat sink 11 and constituted, and wherein LED lamp bead array of particles 13 is plurality of LEDs
Lamp bead is arranged in a stripe region, and aluminum base circuit board 12 takes into account the effect of circuit board and heat conduction, and radiator 11, which is played, distributes heat
The effect of amount.
Lens group 2 includes collimation lens 21, spacer ring 22, filter plate 23, the first cylindrical lens 24, positioning spacer ring 25, second
Cylindrical lens 26, trim ring 27, lens barrel 28, these device coaxial placements, spacer ring 22 are used to isolate collimation lens 21 and filter plate 23,
Surface is spoilt after avoiding contact with, trim ring 27 plays fixed effect.Positioning spacer ring 25 is played the first cylindrical lens 24 and second
The isolation of cylindrical lens 26 positions and ensures the parallel effect of convex surface central shaft.Light source group 1, lens group 2 are coaxially put in optical axis direction
Put, in addition, the central shaft on the convex surface of the first cylindrical lens 24 and the second cylindrical lens 26 and the battle array of LED lamp bead array of particles 13
Column region long side direction is vertical.
Embodiment 2
Fig. 3 is the structural representation of embodiment 2, the basic be the same as Example 1 of structure, simply the first cylindrical lens 24 in lens group 3
And second cylindrical lens 26 optical axis direction installation direction with embodiment 1 on the contrary, positioning spacer ring 31 is only served and isolated in addition
Effect, so when mounted, it is necessary to which adjusting the first cylindrical lens 24, the angle of the second cylindrical lens 26 makes in two convex surfaces
Heart axle is parallel.
Embodiment 3
Fig. 4 is the LED/light source composition schematic diagram of embodiment 3, the basic be the same as Example 1 of structure, simply LED lamp bead array of particles 43
LED lamp bead and embodiment arrangement mode are different, but still are aligned in a strip region, correspondingly aluminium base circuit
Plate 42 is matched with LED lamp bead array of particles 43.
In 1-3 of the embodiment of the present invention, the first cylindrical lens 24, the convex surface central shaft of the second cylindrical lens 26 and LED
The array region long side direction of grain is vertical.
In embodiments of the invention 1-3, it is saturating that LED lamp bead array of particles 13, LED lamp bead array of particles 43 are arranged on collimation
Near the focal plane of mirror.
The device that the utilization LED/light source that this programme is provided produces uniform strip light spots is caused by the design of light source and lens
Device can send uniform strip light spots, be used so as to be adapted to genetic test；The present apparatus is with low cost, excellent effect, is easy to
It is a wide range of to promote.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of utilization LED/light source produces the device of uniform strip light spots, it is characterised in that：Including light source group, lens group and mirror
Cylinder；The light source group and the lens group are arranged on inside the lens barrel；The light source group is provided with the lamp bead array being mutually electrically connected
And circuit board, the circuit board is arranged on rear side of the lamp bead array；The lens group is provided with collimation lens, filter plate, first
Cylindrical lens and the second cylindrical lens；The light that the lamp bead array is sent sequentially passes through the collimation lens, filter plate, the first post
Face lens and the second cylindrical lens；The center of the lamp bead array, the center of the collimation lens, the filter plate center, institute
Center and second cylindrical lens for stating the first cylindrical lens are coaxial；The focal plane of the collimation lens and the lamp bead array
Place plane is overlapped；The lamp bead array is elongated.
2. utilization LED/light source according to claim 1 produces the device of uniform strip light spots, it is characterised in that：The light
Source group is additionally provided with radiator, and the radiator is connected with the circuit board.
3. utilization LED/light source according to claim 2 produces the device of uniform strip light spots, it is characterised in that：Described
One cylindrical lens and second cylindrical lens are segment structure.
4. utilization LED/light source according to claim 3 produces the device of uniform strip light spots, it is characterised in that：Described
One cylindrical lens and the second cylindrical lens bottom surface are oppositely arranged.
5. utilization LED/light source according to claim 3 produces the device of uniform strip light spots, it is characterised in that：Described
One cylindrical lens and the second cylindrical lens sphere are oppositely arranged.
6. producing the device of uniform strip light spots according to any described utilization LED/light source in claim 1-5, its feature exists
In：The lens group is additionally provided with spacer ring, the spacer ring be arranged between the collimation lens and the filter plate and will both every
Open.
7. producing the device of uniform strip light spots according to any described utilization LED/light source in claim 1-5, its feature exists
In：The lens group is additionally provided with positioning spacer ring, and the positioning spacer ring is arranged on first cylindrical lens and second cylinder
Between lens.
8. producing the device of uniform strip light spots according to any described utilization LED/light source in claim 1-5, its feature exists
In：The lens group is additionally provided with trim ring, and the trim ring is arranged on the outside of second cylindrical lens and second cylinder is entered
Row is spacing.
9. producing the device of uniform strip light spots according to any described utilization LED/light source in claim 1-5, its feature exists
In：The length-width ratio of the lamp bead array is more than 2.
10. producing the device of uniform strip light spots according to any described utilization LED/light source in claim 1-5, its feature exists
In：The filter range of the filter plate is the wavelength outside 400-700 nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710433205.2A CN107219631A (en) | 2017-06-09 | 2017-06-09 | A kind of utilization LED/light source produces the device of uniform strip light spots |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710433205.2A CN107219631A (en) | 2017-06-09 | 2017-06-09 | A kind of utilization LED/light source produces the device of uniform strip light spots |
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|---|---|
| CN107219631A true CN107219631A (en) | 2017-09-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710433205.2A Pending CN107219631A (en) | 2017-06-09 | 2017-06-09 | A kind of utilization LED/light source produces the device of uniform strip light spots |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662494A (en) * | 2018-05-18 | 2018-10-16 | 镇江瑞吉光电科技有限公司 | A kind of high power LED integrated light source optics lens group |
| CN110006865A (en) * | 2019-04-10 | 2019-07-12 | 南京诺源医疗器械有限公司 | Hand-held laser fluorescence spectrum probe assembly |
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2017
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Cited By (2)
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|---|---|---|---|---|
| CN108662494A (en) * | 2018-05-18 | 2018-10-16 | 镇江瑞吉光电科技有限公司 | A kind of high power LED integrated light source optics lens group |
| CN110006865A (en) * | 2019-04-10 | 2019-07-12 | 南京诺源医疗器械有限公司 | Hand-held laser fluorescence spectrum probe assembly |
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