CN104390194B - Light distribution lens of LED (Light-emitting Diode) light source and LED lamp - Google Patents
Light distribution lens of LED (Light-emitting Diode) light source and LED lamp Download PDFInfo
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- CN104390194B CN104390194B CN201410616655.1A CN201410616655A CN104390194B CN 104390194 B CN104390194 B CN 104390194B CN 201410616655 A CN201410616655 A CN 201410616655A CN 104390194 B CN104390194 B CN 104390194B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2101/00—Point-like light sources
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- General Engineering & Computer Science (AREA)
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- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to a light distribution lens of an LED (Light-emitting Diode) light source and an LED lamp. The light distribution lens comprises a lens body, wherein the lens body comprises a light-exiting surface and a light-entering surface; the light-exiting surface is formed by rotating a first curve of a non-uniform rational B spline around a symmetry axis of the lens body, and the section of the light-exiting surface along the symmetry axis of the lens body is in a U shape; the upper surface of the lens body is indented to form a blind hole for placing the LED light source; the wall face corresponding to the blind hole is adopted as the light-entering surface; the light-entering surface is formed by rotating a second curve of the non-uniform rational B spline around the symmetry axis of the lens body, and the section of the light-entering surface along the symmetry axis of the lens body comprises a V-shaped opening and a U-shaped notch continuously extending along the lower end of the opening. According to the light distribution lens, the illumination light distribution effect conforming to the uniform light intensity can be obtained under the condition of reducing the using quantity, the light output ratio of the LED lamp is improved, the weight of the lamp is reduced, the manufacturing cost of the lamp is reduced, the lamp is simple and convenient to install, the operation of the assembling process of the lens is reduced, and the production efficiency is improved.
Description
Technical field
The present invention relates to optical technical field, more particularly, to the light-distribution lens and LED lamp of a kind of LED/light source.
Background technology
What the luminous intensity of LED/light source was mainly distributed with Lambertian or nearly Lambertian, be to meet not in most cases
Same lighting demand, it is desirable to have different light intensity distributions, can reach preferable lighting environment, in this case it is desirable to logical
Secondary light-distribution design is crossed, the luminous intensity of LED/light source is redistributed.The main devices of secondary light-distribution design have lens and reflection
Lens or reflector are placed on the light-emitting window of LED/light source by device, and by the curved surface of lens or the curved surface of reflector LED is changed
The light direction of propagation of light source, obtains ideal light distribution on the shadow surface of light.This method has one and asks
Topic, can cause the loss of light energy, it then follows following rule through the curved surface of lens or the curved surface of reflector：Light is by transparent
Or during translucent medium, its light transmittance (T), between reflectivity (R) and absorptivity (A) according to law of conservation of energy exist one it is solid
Fixed relation：T+R+A=1 (i.e. 100%), just must be reduced from relational expression as can be seen that going for higher light transmittance
The light losing for absorbing in the reflection of glass surface and glass and scattering.From above rule, lens and reflector make
Quantity is more, and light loss is bigger；At present in industry, LED/light source quantity and the quantity ratio of lens are 1 in LED lamp:1.No
Seldom arrive, this method has the following disadvantages：First, in today's society, the illumination epoch of environmental protection, energy-saving and emission-reduction are advocated,
The light output ratio for improving LED illumination lamp is particularly important, such as increases lens usage quantity, necessarily causes the damage of more light energies
Lose, be unfavorable for the energy-conservation of LED lamp；Second, lens material typically has polymethyl methacrylate, Merlon and glass,
Wherein lens of polymethyl methacrylate, makrolon material, heatproof is low, easily aging, the lens high cost of glass material, weight
Amount is big, is unfavorable for installing and safeguards.
The content of the invention
It is an object of the invention to provide the light-distribution lens and LED lamp of a kind of LED/light source, solving lens in prior art makes
Caused light energy losses and be unfavorable for the problem of installation operation with quantity is more.
The technical proposal for solving the technical problem of the invention is：A kind of light-distribution lens of LED/light source, the luminous intensity distribution is saturating
Mirror includes lens body, and the lens body includes exiting surface and incidence surface, and the exiting surface is by the of non-uniform rational B-spline
One curve is rotarily formed around the symmetry axis of the lens body, and U-shaped along the tangent plane of the lens body symmetry axis；It is described
The upper surface of mirror main body is recessed the blind hole for placing LED/light source, and the corresponding wall of the blind hole is described as incidence surface
Incidence surface is rotarily formed by the second curve of non-uniform rational B-spline around the symmetry axis of the lens body, the incidence surface edge
The tangent plane of the lens body symmetry axis includes V-shaped dehiscing and along the U-shaped recess of lower end continuation extension of dehiscing.
In the light-distribution lens of the LED/light source of the present invention, lower end to the upper end of first curve is initial by first successively
Arc section, First Transition arc section, the second transition circle segmental arc and the first termination straightway are in turn connected to form, and described first terminates
Straightway is 0 ° relative to the angle of the symmetry axis of the lens body.
In the light-distribution lens of the LED/light source of the present invention, the first initial arc section radius is 6mm-8mm, described the
One transition circle segmental arc radius is 5mm-6.2mm, and the second transition circle segmental arc radius is 0.9mm-1.1mm.
In the light-distribution lens of the LED/light source of the present invention, lower end to the upper end of second curve includes what is be sequentially connected
Second initial arc section, the 3rd transition circle segmental arc, second terminate arc section, the 3rd initial arc section and the 3rd and terminate straightway；
The 3rd termination straightway is 32 ° -38 ° relative to the angle of the symmetry axis of the lens body；Second for being connected with each other
Beginning arc section, the 3rd transition circle segmental arc and the second termination arc section are used to form the U-shaped recess of tangent plane of the incidence surface；Phase
The the described 3rd initial arc section and the 3rd termination straightway for connecting be used to being formed the incidence surface tangent plane it is V-shaped
Mouthful；Wherein described 3rd initial arc section terminates one end of straightway away from the described 3rd and the second termination arc section bending connects
Connect.
In the light-distribution lens of the LED/light source of the present invention, the described 3rd terminates straightway relative to the lens body
The angle of symmetry axis is 35 °
In the light-distribution lens of the LED/light source of the present invention, the radius of the described second initial arc section is 1.4mm-1.8mm,
The radius of the 3rd transition circle segmental arc is 2.3mm-2.5mm, and the described second radius for terminating arc section is 2.6mm-2.8mm,
The radius of the described 3rd initial arc section is 12.5mm-15.5mm.
In the light-distribution lens of the LED/light source of the present invention, the height of the lens body is 4.3mm-5.1mm, described blind
The depth in hole is 3.5mm-4.1mm.
In the light-distribution lens of the LED/light source of the present invention, the upper end edge ora terminalis of the lens body is directed away from described
The direction of the symmetry axis of mirror main body is extended with the protuberance of ring-type, the symmetry axis of the protuberance of the ring-type and the lens body
Symmetrical overlapping of axles, the protuberance buckling parts having for installing the light-distribution lens protruding upward.
The present invention also provides a kind of LED lamp, including aluminium base and the multiple LED/light sources on the aluminium base,
Above-mentioned light-distribution lens are also equipped with the aluminium base, the LED/light source is arranged on correspondingly the light-distribution lens
Blind hole in, wherein the quantity of the light-distribution lens less than the LED/light source quantity.
In the LED lamp of the present invention, the LED/light source is 4 with the quantitative proportion of the light-distribution lens：3～1.
Implement the light-distribution lens and LED lamp of the LED/light source of the present invention, have the advantages that：The present invention is devised
A new light-distribution lens, the illumination light for meeting uniform light intensity can also be obtained in the case where the quantity that lens are used is reduced
Distributed effect, meets the light distribution required for different light scenes, improves the light output ratio of LED lamp, alleviates light fixture
Weight；Reduce the manufacturing cost of light fixture；Lamp installation is easy, reduces the operation of the assembly technology of lens, improves production
Efficiency, enhances the practicality and feature of product.
Description of the drawings
Fig. 1 is the structural representation of the LED lamp of the present invention；
Fig. 2 is the structural representation of the light-distribution lens of the present invention；
Fig. 3 is the cross-sectional schematic that the LED/light source of the present invention coordinates with the mutual installation site of light-distribution lens；
Fig. 4 is the cross-sectional schematic of the light-distribution lens of the present invention；
Fig. 5 is the surface of intensity distribution of Lambertian LED/light source；
Fig. 6 is the surface of intensity distribution of nearly Lambertian LED/light source；
The surface of intensity distribution that Fig. 7 is formed by Lambertian LED/light source through light-distribution lens；
The surface of intensity distribution that Fig. 8 is formed by nearly Lambertian LED/light source through light-distribution lens；
Fig. 9 is Lambertian LED/light source and light-distribution lens according to 2:1 quantity Matching uses the formed surface of intensity distribution；
Figure 10 is nearly Lambertian LED/light source and light-distribution lens according to 2:1 quantity Matching uses formed light distribution
Figure；
Figure 11 is Lambertian LED/light source and light-distribution lens according to 3:1 quantity Matching uses the formed surface of intensity distribution；
Figure 12 is nearly Lambertian LED/light source and light-distribution lens according to 3:1 quantity Matching uses formed light distribution
Figure；
Figure 13 is Lambertian LED/light source and light-distribution lens according to 3:2 quantity Matching uses the formed surface of intensity distribution；
Figure 14 is nearly Lambertian LED/light source and light-distribution lens according to 3:2 quantity Matching uses formed light distribution
Figure；
Figure 15 is Lambertian LED/light source and light-distribution lens according to 4:1 quantity Matching uses the formed surface of intensity distribution；
Figure 16 is nearly Lambertian LED/light source and light-distribution lens according to 4:1 quantity Matching uses formed light distribution
Figure；
Figure 17 a are Lambertian LED/light source and light-distribution lens according to 4:1 quantity Matching uses the hot spot figure formed at 2 meters；
Figure 17 b are Lambertian LED/light source and light-distribution lens according to 4:1 quantity Matching uses the light effect formed at 2 meters
Figure；
Figure 18 a are nearly Lambertian LED/light source and light-distribution lens according to 4:1 quantity Matching uses the hot spot formed at 2 meters
Figure；
Figure 18 b are nearly Lambertian LED/light source and light-distribution lens according to 4:1 quantity Matching uses the light efficiency formed at 2 meters
Fruit is schemed；
Figure 19 is Lambertian LED/light source and light-distribution lens according to 4:3 quantity Matching uses the formed surface of intensity distribution；
Figure 20 is nearly Lambertian LED/light source and light-distribution lens according to 4:3 quantity Matching uses formed light distribution
Figure；
Specific embodiment
With reference to the accompanying drawings and examples, to the present invention the light-distribution lens of LED/light source and the concrete structure of LED lamp and
Action principle is described further：
As shown in figure 1, a kind of LED lamp, including aluminium base 1 and the multiple LED/light sources 2 on aluminium base 1, wherein
LED/light source 2 is dispersively installed on aluminium base 1, and at least a light-distribution lens 3, wherein LED/light source 2 are also equipped with aluminium base 1
It is arranged on correspondingly in light-distribution lens 3, wherein LED/light source 2 can be from Lambertian or nearly Lambertian.Light-distribution lens 3 make
Quantity of the quantity less than LED/light source 2, it is preferable that LED/light source 2 is 4 with the quantitative proportion of light-distribution lens 3：3～1.
As Figure 2-3, light-distribution lens 3 include lens body 31, and lens body 31 is the symmetric body with symmetry axis a,
The symmetry axis of lens body 31 is directed away from along ora terminalis in the end (i.e. the upper end that Fig. 2 shows) of the incidence surface 10 of lens body 31
The direction of a is extended with the protuberance 32 of ring-type, and protuberance 32 is protruding upward buckling parts 33, and the buckling parts 33 is mainly used in engaging
It is fixed on aluminium base 1, and then light-distribution lens 3 is removably mounted on aluminium base 1, easy disassembly, and then maintain easily
With replacing LED/light source 2.Wherein the symmetry axis of the protuberance 32 of ring-type coincides with the symmetry axis a of lens body.
As shown in figure 3, lens body 31 includes exiting surface 20 and incidence surface 10, exiting surface 20 is by non-uniform rational B-spline
The first curve 311 be rotarily formed around the symmetry axis a of lens body 31, it is and U-shaped along the tangent plane of the symmetry axis a of lens body 31.
The upper surface of lens body 31 is recessed the blind hole 34 for placing LED/light source 2, and the corresponding wall of blind hole 34 is made
For incidence surface 10, incidence surface 10 by non-uniform rational B-spline the second curve 312 around lens body 31 symmetry axis a jatharapanvartanasanas
Include V-shaped dehiscing 341 and along 341 lower ends of dehiscing to continue to extend along the tangent plane of the symmetry axis a of lens body 31 into, incidence surface 10
U-shaped recess 342.
LED/light source 2 is arranged in blind hole 34, and the light that LED/light source 2 sends is passed through from the incidence surface 10 of light-distribution lens 3 matches somebody with somebody
Optical lens 3, projects from the exiting surface 20 of light-distribution lens 3, wherein the symmetry axis a phases of the symmetry axis of LED/light source 2 and lens body 31
Overlap, be conducive to the light that LED/light source 2 sends to project uniformly through light-distribution lens 3.
As shown in figure 4, lower end to the upper end of the first curve 311 is successively by the first initial arc section L1, First Transition circular arc
Section L11, the second transition circle segmental arc L12 and the first termination straightway L2 are in turn connected to form, it is to be appreciated that substantially smooth
It is formed by connecting, wherein the first termination straightway L2 is 0 ° relative to the angle of the symmetry axis a of lens body 31, i.e., first terminates straight
Line segment L2 is parallel with the symmetry axis a of lens body 31.
Wherein, the first starting arc section L1 radiuses are 6mm-8mm, and First Transition arc section L11 radiuses are 5mm-6.2mm,
Second transition circle segmental arc L12 radius be 0.9mm-1.1mm, it is preferable that the first starting arc section L1 radiuses be 7mm, First Transition
Arc section L11 radiuses are 5.6mm, and the second transition circle segmental arc L12 radius is 1.0mm
It should be noted that with regard to the first initial arc section L1, First Transition arc section L11, the second transition circle segmental arc L12
The value range of radius be value based on preferred value in general ± 10% deviation range.
Lower end to the upper end of the second curve 312 includes the second initial arc section L3, the 3rd transition circle segmental arc being sequentially connected
L13, second terminate arc section L4, the 3rd starting arc section L5 and the 3rd and terminate straightway L6；Wherein, second for being connected with each other
Beginning arc section L3, the 3rd transition circle segmental arc L13 and the second termination arc section L4 are used to being formed U-shaped recessed of tangent plane of incidence surface 10
Mouth 342；The tangent plane that the termination straightway L6 of the 3rd starting arc section L5 being connected with each other and the 3rd are used to be formed incidence surface 10 is V-shaped
Dehisce 341.
It should be noted that the second initial arc section L3, the 3rd transition circle segmental arc L13 and second terminate arc section L4 it
Between it is substantially smooth be formed by connecting, the 3rd starting arc section L5 and the 3rd termination straightway L6 between it is also substantially smooth be formed by connecting,
And the 3rd starting arc section L5 is connected away from one end of the 3rd termination straightway L6 with the second termination arc section L4 bendings.
3rd termination straightway L6 is 32 ° -38 ° relative to the angle β of the symmetry axis a of lens body 31, it is preferable that the 3rd
It is 35 ° to terminate straightway L6 relative to the angle β of the symmetry axis a of lens body 31.
The radius of the second initial arc section L3 is 1.4mm-1.8mm, and the radius of the 3rd transition circle segmental arc L13 is 2.3mm-
2.5mm, the second radius for terminating arc section L4 is 2.6mm-2.8mm, and the radius of the 3rd initial arc section L5 is 12.5mm-
15.5mm；Preferably, the radius of the second initial arc section L3 is 1.6mm, and the radius of the 3rd transition circle segmental arc L13 is 2.4mm, the
Two radiuses for terminating arc section L4 are 2.7mm, and the radius of the 3rd initial arc section L5 is 13.9mm.
Explanation is needed also exist for, with regard to the second initial arc section L3, the 3rd transition circle segmental arc L13, second circular arc is terminated
The angle β value ranges of section L4, the radius value of the 3rd initial arc section L5 and the 3rd termination straightway L6 are based on preferred value
Value in general ± 10% deviation range.
The height h of lens body 31 is 4.3mm-5.1mm, i.e., from the distance of the upper surface to lowermost end of lens body 31；
Depth d of blind hole 34 is 3.5mm-4.1mm, is equally the distance from the upper surface to the lowermost end of blind hole 34 of lens body 31.It is excellent
Selection of land, the height h of lens body 31 is 4.7mm, and depth d of blind hole 34 is 3.8mm.Need also exist for explanation, lens body
The value range of 31 height h and depth d of blind hole 34 is the value based on preferred value in general ± 10% deviation range.
By transparent material injection mo(u)lding, the refractive index of transparent material is preferably 1.68-1.85 to the light-distribution lens 3 of the present invention,
Transparent material can be Merlon, polymethyl methacrylate or glass etc..
As it can be seen in figures 5 and 6, the surface of intensity distribution of Lambertian LED/light source and nearly Lambertian LED/light source is shown respectively, from figure
In it can be seen that be only concentrated mainly on zone line using light intensity during LED/light source；As shown in FIG. 7 and 8, respectively Lambertian LED
Light source irradiates the surface of intensity distribution with nearly Lambertian LED/light source through light-distribution lens through light-distribution lens, as can be seen from the figure
When zone line light intensity of the LED/light source after the light-distribution lens of the present invention dies down, and periphery light intensity strengthens.It is well known that working as
When being irradiated using light source at a distance, the irradiation luminous intensity of zone line can be further exacerbated by and the irradiation light intensity of neighboring area is weakened
After degree, therefore the light-distribution lens using the present invention, due to zone line light intensity it is weaker and periphery light intensity is stronger so that it is remote to shine
Can make to reach equilibrium between the light intensity of zone line and the light intensity of neighboring area when penetrating, though light intensity from which angle all
Than relatively evenly presenting.
The light intensity during quantitative proportion of LED/light source 2 and light-distribution lens 3 in LED lamp is illustrated below by way of different embodiments
Distribution map and light effect figure.
Embodiment 1：
In the present embodiment, LED/light source 2 and the quantitative proportion of light-distribution lens 3 are 2 in LED lamp：1.Such as Fig. 9 and Figure 10
Shown, its surface of intensity distribution shows that the LED lamp can reach that zone line light intensity is weaker and the stronger effect of neighboring area light intensity
Really, therefore in the case where light-distribution lens quantity is reduced, being uniformly distributed for light intensity can be reached during telecurie irradiation.
Embodiment 2：
In the present embodiment, LED/light source 2 and the quantitative proportion of light-distribution lens 3 are 3 in LED lamp：1.As shown in figure 11,
Lambertian LED/light source shows that the LED lamp can reach zone line light intensity through the surface of intensity distribution of the light-distribution lens of minority
The weaker and stronger effect of neighboring area light intensity, therefore in the case where light-distribution lens quantity is reduced, can be with during telecurie irradiation
Reach being uniformly distributed for light intensity；As shown in figure 12, nearly Lambertian LED/light source is in the surface of intensity distribution of the light-distribution lens of minority
Between region light intensity it is close with the light intensity of neighboring area, still can reach being uniformly distributed for light intensity.
Embodiment 3：
In the present embodiment, LED/light source 2 and the quantitative proportion of light-distribution lens 3 are 3 in LED lamp：2.Such as Figure 13 and Figure 14
Shown, its surface of intensity distribution shows that the LED lamp can reach that zone line light intensity is weaker and the stronger effect of neighboring area light intensity
Really, therefore in the case where light-distribution lens quantity is reduced, being uniformly distributed for light intensity can be reached during telecurie irradiation.
Embodiment 4：
In the present embodiment, LED/light source 2 and the quantitative proportion of light-distribution lens 3 are 4 in LED lamp：1.As shown in figure 15,
Lambertian LED/light source shows that the LED lamp can reach zone line light intensity through the surface of intensity distribution of the light-distribution lens of minority
The weaker and stronger effect of neighboring area light intensity, therefore in the case where light-distribution lens quantity is reduced, can be with during telecurie irradiation
Reach being uniformly distributed for light intensity；As shown in figure 16, nearly Lambertian LED/light source is in the surface of intensity distribution of the light-distribution lens of minority
Between region light intensity it is close with the light intensity of neighboring area, still can reach being uniformly distributed for light intensity.Figure 17 a, 17b, 18a and
18b shows the light effect figure formed at 2 meters, and these figures further illustrate LED/light source after the light-distribution lens of the present invention
Light distribution is more uniform.
Embodiment 5：
In the present embodiment, LED/light source 2 and the quantitative proportion of light-distribution lens 3 are 4 in LED lamp：3.Such as Figure 19 and Figure 20
Shown, its surface of intensity distribution shows that the LED lamp can reach that zone line light intensity is weaker and the stronger effect of neighboring area light intensity
Really, therefore in the case where light-distribution lens quantity is reduced, being uniformly distributed for light intensity can be reached during telecurie irradiation.
The present invention devises a new light-distribution lens, can also obtain in the case where the quantity that lens are used is reduced
Meet the illumination light distributed effect of uniform light intensity, meet the light distribution required for different light scenes, improve LED lamp
Light output ratio, alleviates the weight of light fixture；Reduce the manufacturing cost of light fixture；Lamp installation is easy, reduces the assembler of lens
The operation of skill, improves production efficiency, enhances the practicality and feature of product.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or be converted,
All these improvement or conversion all should belong within the protection domain of claims of the present invention.
Claims (4)
1. a kind of light-distribution lens of LED/light source, the light-distribution lens (3) are including lens body (31), it is characterised in that described
Mirror main body (31) includes exiting surface (20) and incidence surface (10), and the exiting surface (20) is first bent by non-uniform rational B-spline
Line (311) is rotarily formed around the symmetry axis (a) of the lens body (31), and along the lens body (31) symmetry axis (a)
Tangent plane is U-shaped；The upper surface of the lens body (31) is recessed the blind hole (34) for placing LED/light source (2), described blind
The corresponding wall in hole (34) as incidence surface (10), the incidence surface (10) by non-uniform rational B-spline the second curve (312)
Symmetry axis (a) around the lens body (31) is rotarily formed, and the incidence surface (10) is along the lens body (31) symmetry axis
A the tangent plane of () includes V-shaped dehiscing (341) and to continue to extend U-shaped recess (342) along described (341) lower end of dehiscing；
Lower end to the upper end of first curve (311) is successively by the first initial arc section (L1), First Transition arc section
(L11), the second transition circle segmental arc (L12) and the first termination straightway (L2) is in turn connected to form, and described first terminates straightway
(L2) angle relative to the symmetry axis (a) of the lens body (31) is 0 °；
Described first initial arc section (L1) radius is 6mm-8mm, and First Transition arc section (L11) radius is 5mm-
6.2mm, the second transition circle segmental arc (L12) radius is 0.9mm-1.1mm；
Lower end to the upper end of second curve (312) includes the second initial arc section (L3), the 3rd transition circle being sequentially connected
Segmental arc (L13), second terminate arc section (L4), the 3rd initial arc section (L5) and the 3rd and terminate straightway (L6)；Described 3rd
It is 32 ° -38 ° to terminate straightway (L6) relative to the angle (β) of the symmetry axis (a) of the lens body (31)；
The second initial arc section (L3), the 3rd transition circle segmental arc (L13) and the second termination arc section (L4) being connected with each other is used for
Form the U-shaped recess (342) of the tangent plane of the incidence surface (10)；The the described 3rd initial arc section (L5) that is connected with each other and the
Three tangent planes for terminating straightway (L6) for forming the incidence surface (10) are V-shaped to dehisce (341)；Wherein described 3rd is initial
Arc section (L5) is connected away from one end of the described 3rd termination straightway (L6) with the second termination arc section (L4) bending；
3rd termination straightway (L6) is 35 ° relative to the angle (β) of the symmetry axis (a) of the lens body (31)；
The radius of the described second initial arc section (L3) is 1.4mm-1.8mm, and the radius of the 3rd transition circle segmental arc (13) is
2.3mm-2.5mm, the described second radius for terminating arc section (L4) is 2.6mm-2.8mm, the 3rd starting arc section (L5)
Radius be 12.5mm-15.5mm；
The height (h) of the lens body (31) is 4.3mm-5.1mm, and the depth (d) of the blind hole (34) is 3.5mm-
4.1mm。
2. light-distribution lens of LED/light source according to claim 1, it is characterised in that the upper end of the lens body (31)
The direction that the symmetry axis (a) of the lens body (31) is directed away from along ora terminalis is extended with the protuberance (32) of ring-type, the ring
The symmetry axis of the protuberance (32) of shape overlaps with the symmetry axis (a) of the lens body (31), and the protuberance (32) is convex
Go out the buckling parts (33) having for installing the light-distribution lens (3).
3. a kind of LED lamp, including aluminium base (1) and the multiple LED/light sources (2) on the aluminium base (1), its feature
It is that the arbitrary described light-distribution lens (3) of at least claim 1-2, the LED are also equipped with the aluminium base (1)
Light source (2) is arranged on correspondingly in the blind hole (34) of the light-distribution lens (3), wherein the quantity of the light-distribution lens (3)
Less than the quantity of the LED/light source (2).
4. LED lamp according to claim 3, it is characterised in that the LED/light source (2) and the light-distribution lens (3)
Quantitative proportion is 4：3～1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410616655.1A CN104390194B (en) | 2014-10-31 | 2014-10-31 | Light distribution lens of LED (Light-emitting Diode) light source and LED lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410616655.1A CN104390194B (en) | 2014-10-31 | 2014-10-31 | Light distribution lens of LED (Light-emitting Diode) light source and LED lamp |
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| Publication Number | Publication Date |
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| CN104390194A CN104390194A (en) | 2015-03-04 |
| CN104390194B true CN104390194B (en) | 2017-04-26 |
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|---|---|---|---|---|
| HK1217870A2 (en) | 2016-06-10 | 2017-01-20 | Marvel Digital Ltd | A lens for extended light source and design method therefor |
| CN107525037A (en) * | 2016-06-21 | 2017-12-29 | 深圳福凯半导体技术股份有限公司 | LED lens and the bulkhead lamp with the LED lens |
| CN107525038A (en) * | 2016-06-22 | 2017-12-29 | 赛尔富电子有限公司 | A kind of LED bar graph lamp with uniformly light-emitting illumination |
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| WO2011066421A2 (en) * | 2009-11-25 | 2011-06-03 | Cooper Technologies Company | Systems, methods, and devices for sealing led light sources in a light module |
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| CN102414505A (en) * | 2009-04-28 | 2012-04-11 | 鲁德照明公司 | Lens with controlled light refraction |
| CN101699147A (en) * | 2009-10-19 | 2010-04-28 | 深圳市俄菲照明有限公司 | Led light source and lens thereof |
| CN203718531U (en) * | 2014-01-16 | 2014-07-16 | 青岛海信电器股份有限公司 | Direct type display module and display device |
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| CN104390194A (en) | 2015-03-04 |
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