CN206488230U - Lens, light source and light structures - Google Patents
Lens, light source and light structures Download PDFInfo
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- CN206488230U CN206488230U CN201720078993.3U CN201720078993U CN206488230U CN 206488230 U CN206488230 U CN 206488230U CN 201720078993 U CN201720078993 U CN 201720078993U CN 206488230 U CN206488230 U CN 206488230U
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Abstract
A kind of lens, light source and light structures, belong to field of machine vision, lens include lens body, lens body is provided with light incident section, light refraction part and light plane of refraction, light refraction site is in light plane of refraction, the angle of line and the normal of light plane of refraction between light incident section and light refraction part is more than 0 ° and less than 90 °, and light source includes illuminating lamp and said lens, and lens are arranged at the light outlet of illuminating lamp.This light structures includes machine vision object lens and above-mentioned light source, and the optical axis of machine vision object lens and the optical axis of light source are parallel to each other.This lens can change the direction of propagation of light using refraction principle, so as to ensure that light-source structure is simple, while easy for installation, as much as possible using light source, reduce the waste of light source.This light source and light structures have simple in construction, easy for installation, the characteristics of light utilization efficiency is high.
Description
Technical field
The utility model is related to field of machine vision, in particular to a kind of lens, light source and light structures.
Background technology
For machine vision illumination structure conventional at present, the illumination of whole system is by lighting source and machine
Vision objective parallel is placed either lighting source and placed with machine vision object lens inclining certain angle.
Situation about being placed in parallel is relatively common, simple in construction, easy for installation, but light source is a certain degree of using above having
Waste；Slant setting can effectively utilize light source, reduce the waste of light source, but can more complex, installation cost in structure
Also can be higher.
Utility model content
The purpose of this utility model is to provide a kind of lens, and it can change the propagation side of light using refraction principle
To, so that ensureing that light-source structure is simple, and while easy for installation, as much as possible using light source, the waste of reduction light source.
Another object of the present utility model is to provide a kind of light source, and it has simple in construction, easy for installation, light utilization efficiency
High the characteristics of.
A further object of the present utility model is to provide a kind of light structures, and it has simple in construction, easy for installation, cost
Cheap, light utilization efficiency is high, the characteristics of good illumination effect.
What embodiment of the present utility model was realized in：
A kind of lens, it includes lens body, and the lens body is provided with light incident section, light refraction part and light
Line plane of refraction, the light refraction site is between the light plane of refraction, the light incident section and the light refraction part
The angle of normal of line and the light plane of refraction be more than 0 ° and less than 90 °.
Further, in the utility model preferred embodiment, the light incident section is provided with for installing luminous
The mounting groove of body.
Further, in the utility model preferred embodiment, the lens body correspondence light incident section
Position is provided with the first optically focused curved surface.
Further, in the utility model preferred embodiment, the lens body be located at the light incident section and
Position between light plane of refraction is provided with the second optically focused curved surface.
Further, in the utility model preferred embodiment, the light plane of refraction is plane.
Further, in the utility model preferred embodiment, the lens body includes integrally formed round platform portion
With oblique circular cylinder portion, the light incidence position is in the small end face in the round platform portion, the large end face in the round platform portion and the oblique circle
The circular end face connection in post portion, the light plane of refraction is the oval end face in the oblique circular cylinder portion.
Further, in the utility model preferred embodiment, the side outwardly convex in the round platform portion.
Further, in the utility model preferred embodiment, the lens body is PMMA materials.
A kind of light source, it includes illuminator and above-mentioned lens, and the light that the illuminator is arranged at the lens is incident
Portion.
A kind of light structures, it includes machine vision object lens and above-mentioned light source, the optical axis of the machine vision object lens with
The optical axis of the light source is parallel to each other.
The beneficial effect of the utility model embodiment is：
This lens includes lens body, and lens body is provided with light incident section, light refraction part and light plane of refraction,
Line of the light refraction site between light plane of refraction, light incident section and light refraction part and the normal of light plane of refraction
Angle is more than 0 ° and less than 90 °.This lens can change the direction of propagation of light using refraction principle, so as to ensure light source knot
Structure is simple, while easy for installation, as much as possible using light source, reduces the waste of light source, effectively compensate for now lensed lack
Fall into.
This light source use said lens printing opacity, easy for installation with simple in construction, the characteristics of light utilization efficiency is high, effectively more
The defect of existing light source is mended.
This light structures is illuminated using above-mentioned light source, and it has simple in construction, easy for installation, with low cost, light profit
It is high with rate, the characteristics of good illumination effect, it effectively compensate for the defect of existing light structures.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, it will use below required in embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
The structural representation for the lens that Fig. 1 provides for the utility model first embodiment；
The structural representation at another visual angle for the lens that Fig. 2 provides for the utility model first embodiment；
Light structures and the schematic diagram of illuminating effect that Fig. 3 provides for the utility model first embodiment；
Existing light structures and the schematic diagram of illuminating effect that Fig. 4 provides for the utility model first embodiment；
The signal of another existing light structures and illuminating effect that Fig. 5 provides for the utility model first embodiment
Figure；
The operation principle schematic diagram for the light structures that Fig. 6 provides for the utility model first embodiment；
The light of lens reflects schematic diagram during the light structures work that Fig. 7 provides for the utility model first embodiment.
Icon：100- lens；110- round platforms portion；112- planes of light incidence；114- light incident section；116- first
Optically focused curved surface；118- the second optically focused curved surfaces；120- oblique circular cylinders portion；122- light planes of refraction；124- light refraction parts；
200- light structures.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit requirement
The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, or
It is the orientation or position relationship usually put when the utility model product is used, is for only for ease of description the utility model and letter
Change description, rather than indicate or imply signified device or element must have specific orientation, with specific azimuth configuration and
Operation, therefore it is not intended that to limitation of the present utility model.In addition, term " first ", " second ", " the 3rd " etc. are only used for area
Divide description, and it is not intended that indicating or implying relative importance.
In addition, the term such as term " level ", " vertical " is not offered as requiring part abswolute level or pendency, but can be slightly
Low dip.It is not that the expression structure must be complete as " level " only refers to its direction with respect to more level for " vertical "
Full level, but can be slightly tilted.
In description of the present utility model, in addition it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set
Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or be integrally connected；Can be mechanical connection or electrical connection；Can be joined directly together, intermediary can also be passed through
It is indirectly connected to, can is the connection of two element internals.For the ordinary skill in the art, it can be managed with concrete condition
Solve concrete meaning of the above-mentioned term in the utility model.
First embodiment：
Fig. 1-2 is refer to, a kind of lens 100 are present embodiments provided, it includes lens body.Lens body can be adopted
It is made of various materials, in the present embodiment, lens body is made of PMMA materials.Certainly, it is necessary to illustrate, in other realities
Apply in example, lens body can also be made of other materials, such as PC materials etc..
Lens body is provided with light incident section 114, plane of light incidence 112, light refraction part 124 and light plane of refraction
122.Plane of light incidence 112 and light plane of refraction 122 are plane, to reduce processing and manufacturing cost, while convenient design
With the direction of propagation for calculating light.
Light incident section 114 is located at plane of light incidence 112.For convenience the installation of illuminator and ensure install after stabilization
In property, the present embodiment, light incident section 114 is provided with the mounting groove for installing illuminator.Above-mentioned illuminator can be using each
Plant the LED in structure and form, such as the present embodiment.
The light that LED is sent is scattered to surrounding, and concentration class and directionality are poor, causes its illuminating effect poor, in order to
Improve in the concentration class and directionality for the light that the illuminators such as LED are sent, the present embodiment, the position of lens body correspondence mounting groove
The first optically focused curved surface 116 is provided with, the position that lens body is located between light incident section 114 and light plane of refraction 122 is set
There is the second optically focused curved surface 118, the first optically focused curved surface 116 and the second optically focused curved surface 118 are aspherical curved surface, both cooperatings
The direction of propagation and light incident section 114 and the line side of light refraction part 124 for the light that the illuminators such as LED send can be caused
To identical, so that illuminating effect is effectively ensured.
Light refraction part 124 is located at light plane of refraction 122.Line between light incident section 114 and light refraction part 124
It is more than 0 ° and less than 90 ° with the angle I of the normal of light plane of refraction 122.
On the basis of said structure characteristic is met, lens body specifically can be designed as variously-shaped and construction, this reality
Apply in example, lens 100 include integrally formed round platform portion 110 and oblique circular cylinder portion 120, so as to machine-shaping.
The small end face in round platform portion 110 is plane of light incidence 112, and the first optically focused curved surface 116 passes through above-mentioned small end face and office
Portion extends to the side in round platform portion 110.The side in round platform portion 110 is curved and outwardly convex, so as to form the second optically focused curved surface
118, the large end face in round platform portion 110 is connected with the circular end face in oblique circular cylinder portion 120, and the oval end face in oblique circular cylinder portion 120 is
Light plane of refraction 122.
To sum up, this lens 100 include lens body, and lens body is provided with light incident section 114, light refraction part 124
And light plane of refraction 122, light refraction part 124 is positioned at light plane of refraction 122, light incident section 114 and light refraction part 124
Between the angle I of normal of line and light plane of refraction 122 be more than 0 ° and less than 90 °.Because the light of this lens 100 is reflected
The normal direction in face 122 and incident light direction (the line direction i.e. between light incident section 114 and light refraction part 124) have
Certain angle, therefore it can change the direction of propagation of incident light using refraction principle, when it is applied to light source, thus it is possible to vary
The direction of illumination and scope of light source, so that ensureing that light-source structure is simple, while easy for installation, as much as possible using light source,
The waste of light source is reduced, the defect of existing lens 100 is effectively compensate for.
The present embodiment additionally provides a kind of light source, and it includes illuminator and above-mentioned lens 100, and illuminator is arranged at lens
100 light incident section 114.Deviation can occur for refraction and reflection function due to lens 100, the light that illuminator is sent, from
And make it that the irradiating angle and scope of this light source change, when it is applied in NI Vision Builder for Automated Inspection, can effectively it improve
The light structures 200 of NI Vision Builder for Automated Inspection so that light source while easy for installation, effectively utilizes light simple in construction.
To sum up, this light source uses the printing opacity of said lens 100, easy for installation with simple in construction, the high spy of light utilization efficiency
Point, effectively compensate for the defect of existing light source.
Reference picture 3, the present embodiment additionally provides a kind of light structures 200, is mainly used in NI Vision Builder for Automated Inspection.This photograph
Bright structure 200 includes machine vision object lens and two above-mentioned light sources, and two light sources are located at the both sides of machine vision object lens respectively,
And the optical axis of optical axis (i.e. the main propagation direction of light) with machine vision object lens of two light sources is parallel to each other.
This light structures 200 are relative to the advantage of existing light structures 200：
The illumination of existing machine vision illumination structure 200 be placed by lighting source and machine vision objective parallel or
Person is that slant setting is realized.Reference picture 4, be placed in parallel it is simple in construction, it is easy for installation, but light source is using above having certain journey
The waste of degree；Reference picture 5, slant setting can effectively utilize light source, reduce light source and waste, but in structure and install and can answer
It is more miscellaneous.
In order to reach the effect simple in construction and ensureing light efficiency shown in Fig. 3, the light source of this light structures 200 is using above
Described lens 100, due to the line between the light incident section 114 of lens 100 and light refraction part 124 and light plane of refraction
The angle I of 122 normal is more than 0 ° and less than 90 ° (i.e. misaligned or not parallel), therefore the light of light source is passing through lens
It can be reflected when 100, so that the direction of illumination and scope of light source produce change, so, although in this light structures 200
Light source and machine vision object lens be to be placed in parallel, the light of light source can but be utilized effectively, and be prevented effectively from waste.
It is emphasized that angle I concrete numerical value, is according to the material of lens 100, light source and machine vision object lens
Optical axis distance W and operating distance L (vertical range i.e. between machine vision object lens or light source and thing to be seen) calculates true
Fixed, circular is as follows：
Reference picture 6-7, first according to the law of refraction, can be obtained
NsinI=n'sinI'
Wherein, n and n ＇ are respectively the refractive index of lens 100 and air, because lens 100 are PMMA materials in the present embodiment
Matter, therefore n=1.49, n ＇=1, I and I ＇ are respectively that (its direction of propagation is light incident section 114 and light refraction to incident light
Line direction between portion 124) and refraction light and light plane of refraction 122 normal angle, be respectively designated as incidence angle and folding
Firing angle；
, can be with according to Fig. 6 assuming that the optical axis distance W=53mm of light source and machine vision object lens, operating distance L=300mm
Draw
Above-mentioned two formula combines following two trigonometric function formula：
Sin (A+B)=sin A cos B+cos A sin B
sin2A+cos2A=1
It can calculate,
I=18.965 °
To sum up, this light structures 200 are illuminated using above-mentioned light source, and it has simple in construction, and easy for installation, cost is low
Honest and clean, light utilization efficiency is high, the characteristics of good illumination effect, effectively compensate for the defect of existing light structures 200.
Second embodiment：
The present embodiment provides a kind of lens 100, and its shape design, operation principle and the technique effect of acquirement and first are in fact
Apply that example is essentially identical, span of the difference for fear of angle I.
In the present embodiment, the method for line and light plane of refraction 122 between light incident section 114 and light refraction part 124
The angle I of line is equal to 30 °.
3rd embodiment：
The present embodiment provides a kind of lens 100, and its shape design, operation principle and the technique effect of acquirement and first are in fact
Apply that example is essentially identical, span of the difference for fear of angle I.
In the present embodiment, the method for line and light plane of refraction 122 between light incident section 114 and light refraction part 124
The angle I of line is equal to 60 °.
Preferred embodiment of the present utility model is these are only, the utility model is not limited to, for this area
Technical staff for, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle within,
Any modification, equivalent substitution and improvements made etc., should be included within protection domain of the present utility model.
Claims (10)
1. a kind of lens, it is characterised in that including lens body, the lens body is provided with light incident section, light refraction
Portion and light plane of refraction, the light refraction site is in the light plane of refraction, the light incident section and light folding
The angle of the line penetrated between portion and the normal of the light plane of refraction is more than 0 ° and less than 90 °.
2. lens according to claim 1, it is characterised in that the light incident section is provided with for installing illuminator
Mounting groove.
3. lens according to claim 1, it is characterised in that the position of the lens body correspondence light incident section
It is provided with the first optically focused curved surface.
4. the lens according to claim 1-3 any one, it is characterised in that the lens body is located at the light
Position between incident section and the light plane of refraction is provided with the second optically focused curved surface.
5. lens according to claim 1, it is characterised in that the light plane of refraction is plane.
6. lens according to claim 5, it is characterised in that the lens body includes integrally formed round platform portion and oblique
Cylindrical portion, the light incidence position is in the small end face in the round platform portion, the large end face in the round platform portion and the oblique circular cylinder portion
Circular end face connection, the light plane of refraction be the oblique circular cylinder portion oval end face.
7. lens according to claim 6, it is characterised in that the side outwardly convex in the round platform portion.
8. lens according to claim 1, it is characterised in that the lens body is PMMA materials.
9. a kind of light source, it is characterised in that including the lens described in illuminator and claim 1-8 any one, described luminous
Body is installed on the light incident section of the lens.
10. a kind of light structures, it is characterised in that including the light source described in machine vision object lens and claim 9, the machine
The optical axis of the optical axis of vision object lens and the light source is parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720078993.3U CN206488230U (en) | 2017-01-20 | 2017-01-20 | Lens, light source and light structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720078993.3U CN206488230U (en) | 2017-01-20 | 2017-01-20 | Lens, light source and light structures |
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| Publication Number | Publication Date |
|---|---|
| CN206488230U true CN206488230U (en) | 2017-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720078993.3U Active CN206488230U (en) | 2017-01-20 | 2017-01-20 | Lens, light source and light structures |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113805403A (en) * | 2021-09-16 | 2021-12-17 | 东莞锐视光电科技有限公司 | Light supplementing device based on machine vision detection and use method thereof |
-
2017
- 2017-01-20 CN CN201720078993.3U patent/CN206488230U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113805403A (en) * | 2021-09-16 | 2021-12-17 | 东莞锐视光电科技有限公司 | Light supplementing device based on machine vision detection and use method thereof |
| CN113805403B (en) * | 2021-09-16 | 2023-01-31 | 东莞锐视光电科技有限公司 | Light supplementing device based on machine vision detection and use method thereof |
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