CN110501287A - Light channel structure - Google Patents
Light channel structure Download PDFInfo
- Publication number
- CN110501287A CN110501287A CN201810483851.4A CN201810483851A CN110501287A CN 110501287 A CN110501287 A CN 110501287A CN 201810483851 A CN201810483851 A CN 201810483851A CN 110501287 A CN110501287 A CN 110501287A
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- light
- led
- cavity
- channel structure
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- 230000004927 fusion Effects 0.000 claims abstract description 8
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000003760 hair shine Effects 0.000 claims description 3
- 238000007373 indentation Methods 0.000 claims description 2
- 238000001727 in vivo Methods 0.000 claims 1
- 238000009738 saturating Methods 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 8
- 239000013307 optical fiber Substances 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 4
- 241001025261 Neoraja caerulea Species 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
Abstract
The invention discloses a kind of light channel structures, it includes cavity open at one end, the other end of the cavity relative to opening, it is provided with first through hole or the first notch, with the first LED, the light that first LED is issued injects cavity by first through hole or the first notch, the side of cavity is also equipped with the second through-hole or the second notch, with the 2nd LED, the light that 2nd LED is issued injects cavity by the second through-hole or the second notch, spectroscope or two-way Look mirror are additionally provided in cavity, the light that first LED is issued directly passes through spectroscope or two-way Look mirror, it is projected from the opening of cavity, the light that 2nd LED is issued is reflected through spectroscope or two-way Look mirror to be merged with the first LED light issued, wherein the first LED and the 2nd LED emit beam reach spectroscope or two-way Look mirror light path it is identical.The present invention realizes the consistent and light fusion of light path by compact cavity body structure design.
Description
Technical field
The present invention relates to the light channel structures in a kind of light channel structure, especially sensor.
Background technique
In chromaticity transducer or turbidity transducer, optical path is needed to merge the light of two-way different wave length, but existing
Have in technology, during merging light, needs to adjust light transmission side by the combination of multiple groups prism for different light sources
To, to realize that light is fused in the same optical path, but this design so that the light that issues of different light sources before fusion
The optical path length of experience is different, to influence the effect of light fusion.And this design using relatively large number of prism and/or
Lens, so that light channel structure is complicated.
In other designs, the light that different light sources issue is transmitted using optical fiber, for example, by using y-type optical fiber by two
The light of light source is merged and is exported.The introducing of optical fiber solves light path different problems, but is reduction of the efficiency of light fusion,
And optical fiber is fragile, and it is expensive.Again since sensor Structure of need is compact, leads to the difficult to install of optical fiber, be not suitable for
It is largely used in sensor.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome the light channel structure of sensor in the prior art excessively complicated, light
The defect that Cheng Butong causes light fusion efficiencies low provides a kind of new light channel structure, is designed by compact cavity body structure real
The consistent and light fusion of existing light path.
The present invention is to solve above-mentioned technical problem by following technical proposals:
The present invention provides a kind of light channel structure, its main feature is that, the structure includes a cavity open at one end, the cavity
Relative to the other end of opening, it is provided with a first through hole or the first notch, mono- LED of He Yi, the light that the first LED is issued
Line injects the cavity by the first through hole or the first notch, and the side of the cavity is also equipped with one second through-hole or the
Two notches, bis- LED of He Yi, the light that the 2nd LED is issued inject the chamber by second through-hole or the second notch
Body, a spectroscope or a two-way Look mirror are additionally provided in the cavity, and the light that the first LED is issued directly passes through described point
Light microscopic or two-way Look mirror are projected from the opening of the cavity, and the light that the 2nd LED is issued is through the spectroscope or bidirectional color
Mirror reflection is projected after merging with the first LED light issued from the opening of the cavity, wherein first LED and second
LED emit beam reach the spectroscope or two-way Look mirror light path it is identical.
Spectroscope or two-way Look mirror, can be by the photosynthesis light beam of two different directions.Spectroscope is utilized in the present invention
Or this feature of two-way Look mirror, the light of different LED is closed into beam, to simplify the light channel structure in sensor.
Wherein light is mutually perpendicular to enter spectroscope or two-way Look mirror, and closes beam output, thus in one end of cavity and side
LED light is built into the structure for being mutually perpendicular to enter spectroscope or two-way Look mirror by face, and this setup is also easy in fact
The control of existing light path, and then realize that light path of two LED lights before light combination is identical.
Preferably, the light channel structure further includes a photodiode,
The side of the cavity also has a third through-hole, and the photodiode is set to the through hole；
Alternatively,
The photodiode is set to the second indentation, there, has a set distance with the 2nd LED.
Preferably, it is provided with light blocking part between photodiode and the 2nd LED, thus the light for issuing the 2nd LED
Line cannot shine directly on the photosurface of the photodiode.
The photodiode is used to receive the light issued by spectroscope or two-way Look mirror from the first LED
Or cavity wall is propagated in the cavity from the light that the 2nd LED is issued by spectroscope or the reflection of two-way Look mirror
Light.
The present invention using photodiode come the luminous intensity in test chamber, and in turn adjust LED luminous intensity or be used for
Correct the measurement result of sensor.
Preferably, the first LED and the 2nd LED is respectively LED circuit board.
Preferably, the 2nd LED and the photodiode are integrated in the same LED circuit board.
Preferably, the opening of the cavity, also sets up a lens or lens group, after the lens or lens group will merge
Light be converted into directional light or optically focused.
The form of the light beam of light combination is further adjusted in the present invention using lens.
Preferably, the lens or lens group are removable installed in the opening.
Preferably, the lens or lens group are set on the threaded connector of tool, and the connector is bolted in described
Opening.
Preferably, the first LED and the 2nd LED can shine simultaneously or timesharing shines.First LED and second
The wavelength for the light that LED is issued is different, and when this light channel structure is used for sensor, the luminous benefit of timesharing is subsequent detection
Signal is corresponding different wave length at different times, does not need to have special device again to distinguish different wavelength.
Preferably, the light channel structure, it is applied to sensor, especially, chromaticity transducer or turbidity transducer or coloration
The two-in-one sensor of turbidity.
The positive effect of the present invention is that:
The present invention utilizes spectroscope or the characteristic of two-way Look mirror, while the consistent and light fusion for realizing light path, In
Also compact cavity body structure design is realized in sensor.
Light path design of the invention is for the design of traditional multiple groups prism or optical fiber, and reliability is higher, light efficiency
Rate is high, and cost is lower, easy to process and adjustment.
Light detection is integrated in cavity design of the invention, further intelligently to adjust the luminous intensity or intelligence amendment of light source
The measurement result of sensor.
Detailed description of the invention
Fig. 1 is the light channel structure diagrammatic cross-section of the embodiment of the present invention 1.
Fig. 2 is the light channel structure diagrammatic cross-section of the embodiment of the present invention 2.
Fig. 3 is the light channel structure diagrammatic cross-section of variation of the invention.
Fig. 4 is the light channel structure diagrammatic cross-section of the embodiment of the present invention 3.
Fig. 5 is the light channel structure diagrammatic cross-section of another embodiment of the invention.
Appended drawing reference
Cavity 1
Through-hole 21,22
Notch 21 ', 22 '
Red-light LED 31
Blue-ray LED 32
LED board 31 ', 32 '
Photodiode 33
Light blocking part 34
Spectroscope 4
Two-way Look mirror 4 '
Lens 5
Threaded connector 6
Specific embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.
The present invention is using spectroscope or the characteristic of two-way Look mirror, two different directions that the light of different LED is issued, especially
It is that orthogonal light closes beam, to simplify the light channel structure of sensor neutralizing light, while also achieving compact light
Line structure.
By embodiment as described below, the implementation that illustrates the present invention.
Embodiment 1
As shown in Figure 1, light channel structure includes the cavity 1 of cuboid in the present embodiment, one end of cavity 1 is opening, separately
Be provided with through-hole 21 on the end face of one end, red-light LED 31 is arranged at through-hole 21, the light that LED31 is issued by through-hole 21 to
It projects in the direction that cavity 1 is open.
Through-hole 22 is provided on side S1 in four sides of cavity 1, blue-ray LED 32 is arranged at through-hole 22, LED32
The light of sending is projected by through-hole 22 to the side direction S2.
Two-way Look mirror 4 is set as shown in Figure 1 in cavity 1, and two-way Look mirror 4 described in the present embodiment can allow for LED31 to send out
The feux rouges penetrated, which is directly worn, penetrates two-way Look mirror 4, but the blue light of 90 ° of reflection LED32 transmittings, directly wears the feux rouges penetrated and 90 ° at this time
The blue light of reflection realizes light combination, and the light after light combination is projected from the opening of cavity 1.
And in the present embodiment two-way Look mirror 4 be arranged so that the feux rouges of LED31 transmitting reach spectroscopical light path with
The spectroscopical light path of blue light arrival of LED32 transmitting is identical, is collimated, is realized higher with lens or lens group convenient for subsequent
Light efficiency.
The side quantity of the cavity described in the variation of the present embodiment 5 or 8 or even 17, as long as can be realized
The optical path of blue light and feux rouges is vertical, and the number and shape of side can be arbitrarily arranged, be not limited in the present embodiment cube,
The structure of polygon prism.
Embodiment 2
As shown in Fig. 2, the cavity 1 in the present embodiment is cylindrical body, one end of cavity 1 is opening, the end face of the other end
On be provided with the notch 21 ' of strip, LED board 31 ' is covered on notch 21 ', the light that LED board 31 ' issues by notch 21 ' to
It projects in the direction that cavity 1 is open.
Strip notch 22 ' is arranged in 1 side of cavity, and LED board 32 ' covers 22 ' place of notch, and the light that LED board 32 ' issues passes through
It projects the other side opposite with notch 22 ' into cavity of notch 22 '.
Photodiode 33 is additionally provided in the present embodiment on LED board 32 ', photodiode 33 is collected towards notch 22 '
The intracorporal luminous intensity of chamber.
And the 2nd the intermediate of LED22 and photodiode 33 light blocking part 34 is set so that the 2nd LED22 is sent out
Light out cannot shine directly on the photosurface of photodiode 33, to avoid photodiode monitor to the light of mistake
Signal.Spectroscope 4 ' is arranged in mode as shown in Figure 2 in cavity 1, and spectroscope 4 ' described in the present embodiment can allow for LED board
Approximately half of light of 31 ' transmittings, which is directly worn, penetrates spectroscope 4 ', but approximately half of light that 90 ° of reflection LED boards 32 ' emit,
The light for directly wearing the light penetrated and 90 ° of reflections at this time realizes light combination, and the light after light combination is projected from the opening of cavity 1.
And in the present embodiment spectroscope 4 ' setting it is same but also the light that LED board 31 ' emits reach it is spectroscopical
Light path is identical as the light spectroscopical light path of arrival that LED board 32 ' emits, and is collimated convenient for subsequent with lens or lens group,
Realize higher light efficiency.
In a variation of the present embodiment, as shown in figure 3,1 side of cavity also has independent through-hole, for being arranged
Photodiode carrys out the intensity of light in collection chamber.Cavity between through-hole and through-hole or notch that the 2nd LED is set at this time
Side wall stops the light direct irradiation of the 2nd LED sending to photodiode as light blocking part.In another variation, add
Thick through-hole and be arranged the 2nd LED through-hole or notch between cavity wall or add light blocking part in cavity wall, to improve
Shaded effect.
1 side of cavity is additionally provided with a notch in another variation, the circuit board covering where photodiode
Notch carrys out the intracorporal light intensity of collecting chamber.
Embodiment 3
As shown in figure 4, the present embodiment the difference from example 2 is that, the opening of cavity 1, is provided in the present embodiment
Lens 5, lens 5 convert directional light for the beam collimation of light combination or carry out optically focused.
The lens described in a variation of the present embodiment can be lens group and convert the light beam of light combination in parallel
Light carries out optically focused.
Lens 5 described in another embodiment as shown in Figure 5 are embedded on threaded connector 6, threaded connector and chamber
The screw thread of the opening of body 1 is mutually matched, and threaded connector 6 can be spirally connected and be fixed on opening.
The lens described in another embodiment of the present embodiment or lens group are embedded in the opening of cavity by buckle, and
It can be removed manually or by tool from cavity hatch.It can quickly and conveniently realize lenses at cavity hatch using buckle
Fixation, and buckle can also meet eyeglass dismounting requirement.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
Under the premise of from the principle and substance of the present invention, many changes and modifications may be made, but these are changed
Protection scope of the present invention is each fallen with modification.
Claims (10)
1. a kind of light channel structure, which is characterized in that the structure includes a cavity open at one end, and the cavity is relative to opening
The other end, be provided with a first through hole or the first notch, mono- LED of He Yi, the light that the first LED is issued passes through described
First through hole or the first notch inject the cavity, and the side of the cavity is also equipped with one second through-hole or the second notch, and
One the 2nd LED, the light that the 2nd LED is issued inject the cavity, the chamber by second through-hole or the second notch
It is additionally provided with a spectroscope or a two-way Look mirror in vivo, the light that the first LED is issued directly passes through the spectroscope or double
To Look mirror, projected from the opening of the cavity, the light that the 2nd LED is issued through the spectroscope or the reflection of two-way Look mirror with
The light fusion that first LED is issued, wherein first LED and the 2nd LED emit beam and reach the spectroscope or double
Light path to Look mirror is identical.
2. light channel structure as described in claim 1, which is characterized in that the light channel structure further includes a photodiode,
The side of the cavity also has a third through-hole, and the photodiode is set to the through hole；
Alternatively,
The photodiode is set to the second indentation, there, and has a set distance with the 2nd LED.
3. light channel structure as claimed in claim 2, which is characterized in that set between the photodiode and the 2nd LED
Be equipped with prevent the 2nd LED emit beam direct irradiation to the photodiode light blocking part.
4. light channel structure as described in claim 1, which is characterized in that the first LED and the 2nd LED is respectively that LED is housed
Circuit board.
5. light channel structure as claimed in claim 4, which is characterized in that the 2nd LED and the photodiode are integrated in
The same circuit board.
6. light channel structure as described in claim 1, which is characterized in that the first LED and the 2nd LED shines simultaneously or timesharing
It shines.
7. light channel structure as described in claim 1, which is characterized in that the opening of the cavity also sets up a lens or saturating
Fused light is converted directional light or optically focused by microscope group, the lens or lens group.
8. light channel structure as claimed in claim 7, which is characterized in that the lens or lens group are removable installed in described
Opening.
9. light channel structure as claimed in claim 8, which is characterized in that the lens or lens group are set to the threaded company of tool
On fitting, the connector is bolted in the opening.
10. light channel structure as claimed in any one of claims 1-9 wherein, which is characterized in that the light channel structure is applied to coloration
Sensor or the two-in-one sensor of turbidity transducer or colorimetry-turbidity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810483851.4A CN110501287A (en) | 2018-05-19 | 2018-05-19 | Light channel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810483851.4A CN110501287A (en) | 2018-05-19 | 2018-05-19 | Light channel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110501287A true CN110501287A (en) | 2019-11-26 |
Family
ID=68584892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810483851.4A Pending CN110501287A (en) | 2018-05-19 | 2018-05-19 | Light channel structure |
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