CN206093918U - Low -angle lens and lamps and lanterns - Google Patents
Low -angle lens and lamps and lanterns Download PDFInfo
- Publication number
- CN206093918U CN206093918U CN201620351829.0U CN201620351829U CN206093918U CN 206093918 U CN206093918 U CN 206093918U CN 201620351829 U CN201620351829 U CN 201620351829U CN 206093918 U CN206093918 U CN 206093918U
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- Prior art keywords
- light
- low
- angle
- lens
- angle lens
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- 241001465382 Physalis alkekengi Species 0.000 title abstract 2
- 201000009310 astigmatism Diseases 0.000 claims description 16
- 239000006185 dispersion Substances 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 9
- 101100117236 Drosophila melanogaster speck gene Proteins 0.000 abstract description 3
- 241000219739 Lens Species 0.000 description 33
- 210000000695 crystalline len Anatomy 0.000 description 33
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 241001347978 Major minor Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000005304 optical glass Substances 0.000 description 2
- 230000003667 anti-reflective effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model relates to a low -angle lens, including going into light end, light -emitting end and connecting the side reflective wall of light end and light -emitting end goes into, it is equipped with interior cavity to go into the light end, the first plane of reflection of taper is extended to interior cavity bottom to the light source. The utility model discloses a low -angle lens reduce the grading shirt rim and add to most advanced, have improved smooth utilization ratio, and the at utmost reduces to have weakened vice facula, and overall angle can be big, nevertheless the definition of 50% light intensity of the most genuine breakthrough realize narrow angle 10 1 to a little less than the vice facula of these lamps and lanterns had been reduced to the most, what the facula was seen was exactly a low -angle facula, realizes customer's demand, central light intensity the bright speck can not appear and overall light intensity higher, whole grading is even.
Description
Technical field
This utility model is related to low-angle optical lenses field, more particularly to a kind of low-angle lens and light fixture.
Background technology
At present on light fixture market, traditional so-called low-angle shot-light to lose light efficiency as cost, luminous intensity distribution under rectangular coordinate system
Shirt rim it is excessive, middle excessively sharp, under test system, 50% light intensity test is middle tip angle in the distance, and what is may shown is little
In 10 °, i.e., so-called very small angles, it is however generally that, such low-angle lamp, middle hot spot have speck, and secondary hot spot is excessive, light profit
It is low with rate.Also have in addition using TIR lens carry out it is low-angle irradiating angle is drawn in, but as which is without fine
Ground is controlled to the light reflected by lens medial wall, makes the pip in the wall of lens side the closer to light source, and reflection light is then
More thinking that axle center is drawn close, intersection point being caused the closer to light source, under certain irradiation distance, clearly, major-minor hot spot shines its secondary hot spot
Angle value based on 5 ~ 6, is unfavorable for precisely illumination generally within 10.
In addition, in existing LED spotlight, its universal angle of irradiation is bigger than normal, and low-angle cover lamp is lacked more really, although very
Many occasions all use LED illumination lamp, but due to the problem of its own lighting angle, Led light fixtures are too big because of secondary hot spot, it is impossible to
Function well as accent light shot-light.
Utility model content
The purpose of this utility model is for the technological deficiency for overcoming above-mentioned background.
A kind of low-angle lens are provided, including light inputting end, go out light end and connect the light inputting end and go out light end side it is anti-
Light wall, the light inputting end are provided with inner cavity, and the first reflecting surface of taper is extended in the inner cavity bottom to light source.
Further, the radius of curvature of the incline of the side reflection wall gradually increases from light inputting end to light end is gone out.
Further, the incline of first reflecting surface bend to its axle center and incline radius of curvature from top to low
End is gradually reduced.
Preferably, it is described go out light end center be provided with light dispersion member.
As a kind of preferable case, the light dispersion member be through lens cylinder shape astigmatism hole, first reflective surface
Bottom is provided with column interference connector, and is fixed at the astigmatism hole by the interference connector.
As another kind of preferable case, the light dispersion member be to light source depression cylindrical astigmatism hole, the astigmatism hole
Bottom surface be frosting.
Preferably, first reflecting surface is bloom minute surface or frosting.
In addition, this utility model also provides a kind of low-angle light fixture, including the receipts optical lens of light source and light source front end, its
It is characterised by, the receipts optical lens, including light inputting end, goes out light end and connect the light inputting end and go out the side reflection wall at light end,
The light inputting end is provided with inner cavity, and the first reflecting surface of taper is extended in the inner cavity bottom to the light source.
Further, the receipts optical lens front end is provided with through the receipts optical lens cylinder astigmatism hole, and described first is anti-
The bottom of bright finish is provided with column interference connector, and is fixed at the astigmatism hole by the interference connector.
Preferably, first reflecting surface is bloom minute surface or frosting.
The beneficial effect played by this utility model：
1. luminous intensity distribution shirt rim is reduced and be added to tip, improve light utilization efficiency, at utmost reduce secondary hot spot, always
Body angle can be larger, but truly break through the definition of 50% light intensity and realize 10 ° ± 1 ° of narrow angle, and light fixture pair light
Speckle has reduced to most weak, and what hot spot was seen is exactly one piece of low-angle hot spot, realizes the demand of client, and central light strength is not in speck
And totality light intensity is higher, overall luminous intensity distribution is uniform.
2., after make use of coniform reflective surface, major-minor light spot illumination value is substantially not visible secondary hot spot up to more than 100, even if
After filling whole modulated structure part, new hot spot problem will not be formed, the major-minor light spot illumination value compared in prior art 5 ~ 10 has
Very big raising.
3. the disappearance of low-angle light fixture has been filled up in LED spotlight field, existing LED spotlight angle has been solved generally inclined
Big problem.
Description of the drawings
Light path principle figures of the Fig. 1 for prior art.
Fig. 2 is the lens semi-cutaway in this utility model embodiment one.
Fig. 3 is the light path principle figure in this utility model embodiment one.
Fig. 4 is the lens semi-cutaway in this utility model embodiment two.
Fig. 5 is the light path principle figure in this utility model embodiment two.
Comparison diagrams of the Fig. 6 for light distribution angle and prior art in this utility model embodiment two.
Fig. 7 is the lens semi-cutaway in this utility model embodiment three.
Fig. 8 is the lens semi-cutaway in this utility model example IV.
Wherein, 1 is light inputting end, and 2 is light end, and 3 is side reflective surface, and 4 is the first reflective surface, and 5 is inner cavity side wall, and 6 are
Astigmatism hole, 7 is adhesive part, and 8 is optical glass.
Specific embodiment
It is in order to allow those skilled in the art to know more about the technical solution of the utility model, below in conjunction with accompanying drawing and specifically real
Apply example to be further described low-angle lens of the present utility model and light fixture.
As shown in figure 1, schema general T IR lens not of the prior art（Total Internal Reflection
Quanneifanshe, Total Internal Reflection-lenses）, its intracavity sidewall top half primarily forms main spot.Intracavity sidewall the latter half
Forming part main spot, the secondary hot spot in part.Most of pair hot spot is formed by the light at the top of inner cavity out.It is ray in figure
For main spot light path, empty ray is secondary hot spot light path.Also there is the technical side suppressed to these light dispersions in prior art
Case, the top setting collecting lenses of inner cavity, such as convex lenss etc., light is drawn in, but this technical scheme is not
Above-mentioned technical problem is solved well can.
Embodiment 1：
This utility model then by redesign TIR lens, there is provided a kind of low-angle lens and based on the low-angle it is saturating
The low-angle light fixture of mirror, the light source adopted by low-angle light fixture is for LED light source, and low-angle lens arrange the front end with light fixture,
The wherein profile of low-angle lens as shown in Fig. 2 which can effectively cancel the secondary hot spot of light source by simple structure, specifically
By the cooperation of TIR lens and conical reflecting surface, and TIR lens profiles and inner chamber side adopt multistage wire looping light,
It is that the light that light source is felt has light to bring out light through repeatedly refraction or after reflecting, improves light utilization, reduce pair
Hot spot.
Fig. 2 is referred to, a kind of concrete low-angle lens include light inputting end, go out light end and connect light inputting end and go out light end
Side reflection wall, light inputting end, goes out light end and side reflection wall three is combined into the lens arrangement of a solid cup-like structure, and lens are adopted
Light transmissive material is made.Further light inputting end is provided with inner cavity, and the diameter of inner cavity is slightly less than in light inputting end LED light source is arranged on
At the opening of cavity.
In order to prevent LED light source from secondary hot spot is formed after the scattering of inner cavity bottom, extend one in the bottom of inner cavity
First reflective surface of individual taper.The tip of the taper reflective surface is just relative with the centre of luminescence of LED light source, the reflection of the first reflective surface
LED light source with regard to substantially symmetrical about its central axis.After inner cavity is combined with the first reflecting surface, it is divided into the light that LED light source is emitted
Two parts, Part I are to first pass through the first reflective surface, light again after the refraction of inner cavity side wall Jing by lens
The reflection of side reflective surface, it is final outwards to export.Part II be then be directly over the refraction of inner cavity side wall after Jing by lens
Side reflective surface reflection, it is final outwards to export.
The light path that the light script of Part I is can be seen that with reference to Fig. 1 and Fig. 2 is to be scattered from the top of inner cavity backward
Output, is the main cause to form secondary hot spot.After the first reflective surface is provided with, this part light is reflexed to by the first reflective surface
Side reflective surface, is outwards exported after the arrangement of side reflective surface again.The concrete effect realized is, by main secondary hot spot
Light is readjusted, and is allowed to form main spot, reaches when strengthening the brightness of main spot and reduce the brightness effect of secondary hot spot
Really.
In addition, the first reflective surface in the present embodiment can be high anti-wet look or frosting.It is preferably high reflective
Bright face, prevents the first reflective surface of light penetration.First reflective surface and the body of lens can be detachable connection simultaneously, together
When the first anti-reflective surface need using exotic material molding.
Embodiment 2：
As shown in Figure 4 and Figure 5, the present embodiment is that the curvature of the incline of side reflection wall is partly with the distinguishing characteristicss of embodiment 1
Footpath gradually increases from light inputting end to light end is gone out.Simultaneously as coordinating, the incline of the first reflecting surface to its axle center bending and side
The radius of curvature of rib is gradually reduced from top to low side.This two curves are made to become as the little curve combination by multistage different curvature
Into.The adjustment of this part be mainly used for adjust side reflective surface the latter half light, side reflective surface about at light inputting end, its
The light of transmitting is easier to produce secondary hot spot, in order to further reduce the formation of secondary hot spot, the radius of curvature of offside reflective surface
Adjusted, the reflective curvature radius in side that will be close to light inputting end reduce so as to which the light of reflection more tends in output
In the face for vertically going out light end.Meanwhile, the incline radius of curvature of the first reflective surface is gradually increased from bottom to top adjustment ground, with
Side reflective surface coordinates, and prevents the light of LED light source transmitting from exporting directly external after the part transmitting of bottom, and without
Side reflection wall carries out secondary reflection.Comparing with the lighting angle data of prior art in this lighting angle measured data implemented please
Participate in Fig. 6, graph of a relation of the left side normal distribution curve for the lighting angle and light intensity of the present embodiment, the first reflective surface in inner chamber
After unnecessary veiling glare is reused, disappear in 12 ° of remaining lights afterwards with substantially can be seen that on light, it is seen that the present embodiment
Gathering effect it is obvious.
Embodiment 3
The present embodiment is light end center to be provided with light dispersion member with the difference of above-mentioned two embodiment.
As a kind of preferable case, as shown in Figure 7.Light dispersion member is through cylindrical astigmatism hole, the bottom of the first reflective surface
Portion is provided with column interference connector, and is fixed at astigmatism hole by interference connector.In addition, the front end in astigmatism hole is additionally provided with one
Adhesive part, it is possible to use this adhesive part increases the optical glass of optical filter in low-angle lens front.Adhesive part can
Think that two have magnetic thin slice.
Embodiment 4
As another kind of preferable case, as shown in Figure 8.Light dispersion member be to light source depression cylindrical astigmatism hole, astigmatism
The bottom surface in hole is frosting, for further breaing up the light for forming secondary hot spot.
Above-mentioned 3 kinds of embodiments are not separate in principle, and which can gather one or more technological means
It is combined with each other, forms new embodiment.
Embodiment of the present utility model is explained in detail above in conjunction with accompanying drawing, but this utility model is not limited to
Above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, can be with without departing from this utility model
On the premise of objective, various changes can be made.
Claims (10)
1. a kind of low-angle lens, it is characterised in that：Including light inputting end, go out light end and connect the light inputting end and go out light end
Side reflection wall, the light inputting end are provided with inner cavity, and the first reflecting surface of taper is extended in the inner cavity bottom to light source.
2. low-angle lens as claimed in claim 1, it is characterised in that：The radius of curvature of the incline of the side reflection wall is from entering
Light end gradually increases to light end is gone out.
3. low-angle lens as claimed in claim 1, it is characterised in that：The incline of first reflecting surface it is curved to its axle center
The radius of curvature of bent and incline is gradually reduced from top to low side.
4. low-angle lens as any one of claim 1 ~ 3, it is characterised in that：It is described go out light end center be provided with scattered
Light part.
5. low-angle lens as claimed in claim 4, it is characterised in that：The light dispersion member is scattered through the cylinder of lens
Unthreaded hole, the bottom of first reflective surface are provided with column interference connector, and are fixed on described dissipating by the interference connector
At unthreaded hole.
6. low-angle lens as claimed in claim 4, it is characterised in that：The light dispersion member is the cylinder to light source depression
Astigmatism hole, the bottom surface in the astigmatism hole is frosting.
7. a kind of low-angle light fixture, including the receipts optical lens of light source and light source front end, it is characterised in that the receipts optical lens,
Including light inputting end, go out light end and connect the light inputting end and go out the side reflection wall at light end, the light inputting end is provided with inner cavity, institute
State the first reflecting surface that taper is extended in inner cavity bottom to the light source.
8. low-angle light fixture as claimed in claim 7, it is characterised in that：The receipts optical lens front end is provided with through the receipts light
The cylindrical astigmatism hole of lens, the bottom of first reflective surface are provided with column interference connector, and are connected by the interference
Part is fixed at the astigmatism hole.
9. the low-angle light fixture as described in claim 1 or 7, it is characterised in that：First reflecting surface is bloom minute surface.
10. the low-angle light fixture as described in claim 1 or 7, it is characterised in that：First reflecting surface is frosting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620351829.0U CN206093918U (en) | 2016-04-25 | 2016-04-25 | Low -angle lens and lamps and lanterns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620351829.0U CN206093918U (en) | 2016-04-25 | 2016-04-25 | Low -angle lens and lamps and lanterns |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206093918U true CN206093918U (en) | 2017-04-12 |
Family
ID=58470787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620351829.0U Expired - Fee Related CN206093918U (en) | 2016-04-25 | 2016-04-25 | Low -angle lens and lamps and lanterns |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206093918U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051622A (en) * | 2016-04-25 | 2016-10-26 | 惠州市西顿工业发展有限公司 | Small-angle lens and lamp |
| CN107327806A (en) * | 2017-08-14 | 2017-11-07 | 广州市波电电子科技有限公司 | A kind of low-angle beam lens based on eccentric light source |
-
2016
- 2016-04-25 CN CN201620351829.0U patent/CN206093918U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051622A (en) * | 2016-04-25 | 2016-10-26 | 惠州市西顿工业发展有限公司 | Small-angle lens and lamp |
| CN107327806A (en) * | 2017-08-14 | 2017-11-07 | 广州市波电电子科技有限公司 | A kind of low-angle beam lens based on eccentric light source |
| CN107327806B (en) * | 2017-08-14 | 2019-05-17 | 广州市波电电子科技有限公司 | A kind of low-angle beam lens based on eccentric light source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170412 |