CN202791797U - Light-emitting diode (LED) optical lens - Google Patents

Abstract

The utility model relates to a light-emitting diode (LED) optical lens. The LED optical lens is provided with a lens body. The lens body includes an out-light surface, a side curved surface and an in-light surface, wherein the out-light surface is a circular surface with the diameter being 13.68-14.84 millimeters, the side curved surface is composed of a plurality of curved surface points, one side edge of the side curved surface is mutually connected with the out-light surface, the other side edge of the side curved surface is surrounded to form a circular reference surface in a frame mode and is mutually connected with the edge of the in-light surface, and the distance from the reference surface to the out-light surface is 8.1 millimeters. Thus, the out-light surface, the side curved surface and the in-light surface are just sealed to form the external surface of the lens body. Furthermore, the LED optical lens covers an LED so as to adjust original emitting angles, luminosity distribution and illuminance distribution of the LED, so that expected irradiation ranges and illumination intensity are achieved, and thereby the LED optical lens can be applied to all sorts of lighting in a multiple mode.

Description

The LED optical lens

Technical field:

The utility model is relevant with the technical field of optical lens, particularly about a kind of LED optical lens that utilizes lighting angle, photometric distribution and Illumination Distribution that the secondary optics refraction principle changes former light emitting diode, meet the different demands of various light fixture to adjust lighting area.

Background technology:

In recent years, illumination market blows afloat a burst of reform agitation because light emitting diode (LED) has the characteristics such as low power consumption, high-effect and life-span be long, so that LED carries out on a large scale replacing conventional light source and is widely used in display, advertising billboard and various light fixture, for example in street lamp, courtyard lamp or the desk lamp.Compared to conventional light source, the divergence of beam angle of LED is less, and illumination zone is restricted when consequently applying to light fixture, perhaps, too concentrate the center that makes illumination zone very huge with the brightness difference in size at periphery place because of central ray, uniform illuminating effect can't be provided.To this, how to utilize the secondary optics principle, the uniformity for the projection illumination of led light source, lighting angle and irradiation light is improved, and is the be correlated with problem of practitioner's utmost point wish improvement of this area with the illumination condition that the best all can be provided under the service condition of various differences.

The utility model content:

Because the problem of known technology, the purpose of the utility model is to provide a kind of LED optical lens, changes and adjust lighting angle and the illumination of led light source to utilize the secondary optics principle, makes and adjusts illumination zone and equal light effect.

For reaching above-mentioned purpose, this LED optical lens of the utility model is to be combined with a LED, be provided with guiding the light of this LED and produce better light shape layout, and this LED optical lens has a lens body, and it comprises an exiting surface, a N-Side surf and an incidence surface.This exiting surface is circular surface, and the long 13.68～14.84mm of its diameter.This N-Side surf is comprised of a plurality of surface points, and one of this N-Side surf lateral margin and this exiting surface interconnect, and another lateral margin frame of this N-Side surf encloses and forms one of circular datum level, and wherein this datum level to the distance of this exiting surface is 8.1mm.And, this datum level edge of the edge of this incidence surface and this N-Side surf interconnects, and form surface outside this lens body by this exiting surface, this N-Side surf and the sealing of this incidence surface, and form an accommodation chamber in this incidence surface place indent of this lens body, in order to accommodating this LED.

Wherein, with on this datum level any two be defined as respectively X-direction and Y direction by one of this datum level center of circle and mutually orthogonal straight line, and this center of circle is the initial point of three dimensional space coordinate, and this lens body presents mirror symmetry take the Y-Z face as base surface on X-axis; This lens body presents mirror symmetry take the X-Z face as base surface on Y-axis.Moreover these surface points to X, Y, Z axis distance also has respectively a relative error p more than or equal to zero, when a unit coordinate length is 1mm, and-0.05mm≤p≤0.05mm.

So, in an embodiment, these surface points have each point (x on the X-Z coordinate plane, z) be (2.22,0), (3.51,1.62), (4.52,3.24), (5.39,4.86), (6.24,6.35), (6.91,8.10); On the Y-Z coordinate plane, have each point (y, z) and be (2.22,0), (3.51,1.62), (4.52,3.24), (5.39,4.86), (6.24,6.35), (6.91,8.10).

Perhaps, these surface points have each point (x, z) and are (1.80,0), (3.18,1.62), (4.26,3.24), (5.19,4.86), (6.05,6.48), (6.84,8.10) on the X-Z coordinate plane; On the Y-Z coordinate plane, have each point (y, z) and be (1.80,0), (3.18,1.62), (4.26,3.24), (5.19,4.86), (6.05,6.48), (6.84,8.10).

In another embodiment, these surface points are on the X-Z coordinate plane, and having each point (x, z) is (2.15,0), (3.50,1.62), (4.65,3.24), (5.68,4.86), (6.61,6.48), (7.42,8.10); On the Y-Z coordinate plane, have each point (y, z) and be (2.15,0), (3.50,1.62), (4.65,3.24), (5.68,4.86), (6.61,6.48), (7.42,8.10).

In addition, for assembling this LED optical lens and this LED, the utility model more comprises an engaging body, and this engaging system is located at this exiting surface one side, is provided with mutually being fixed with respect to a LED substrate or a led support.

Description of drawings:

Fig. 1 is that one of the utility model preferred embodiment is implemented aspect in the cutaway view on X-Z plane.

Fig. 2 is that one of the utility model preferred embodiment is implemented aspect in the optical track figure on X-Z plane.

Fig. 3 is the distribution curve flux figure that aspect is implemented in one of the utility model preferred embodiment.

Fig. 4 is that inferior one of the utility model preferred embodiment is implemented aspect in the cutaway view on X-Z plane.

Fig. 5 is that inferior one of the utility model preferred embodiment is implemented aspect in the optical track figure on X-Z plane.

Fig. 6 is the distribution curve flux figure of a time enforcement aspect of the utility model preferred embodiment.

Fig. 7 is that another of the utility model preferred embodiment implemented aspect in the cutaway view on X-Z plane.

Fig. 8 is that another of the utility model preferred embodiment implemented aspect in the optical track figure on X-Z plane.

Fig. 9 is the distribution curve flux figure of another enforcement aspect of the utility model preferred embodiment.

Figure 10 is the use schematic diagram of the utility model preferred embodiment.

The specific embodiment:

Hold for your juror can be known within understanding the utility model, it is graphic sincerely to arrange in pairs or groups in the following instructions, please consult.

See also Fig. 1, it is respectively one of the utility model preferred embodiment and implements aspect in the cutaway view on X-Z plane.As shown in the figure, this LED optical lens 1 is combined with a LED (not shown), is provided with guiding the light of this LED and produces better light shape layout.This LED optical lens 1 has a lens body 10 and an engaging body 11, and this lens body 10 comprises an exiting surface 100, a N-Side surf 101 and an incidence surface 102, and this exiting surface 100 is the circular surface of diameter 13.82mm.According to geometry principle: point consists of line, the basic concept of line formation face as can be known, this N-Side surf 101 is comprised of a plurality of surface points 1010, and one of this N-Side surf 101 lateral margin and this exiting surface 100 interconnect, and its another lateral margin frame encloses one of formation circle datum level, and this datum level to the distance of this exiting surface 100 is 8.1mm again.The edge of this incidence surface 102 and this datum level edge interconnect, make this exiting surface 100, this N-Side surf 101 form surface outside this lens body 10 with these incidence surface 102 sealings, and this lens body 10 forms an accommodation chamber in these incidence surface 102 place's indents, in order to accommodating this LED, this incidence surface 102 of this accommodation chamber top is outer convex surface shape again.And this engaging body 11 is located at these lens body 10 1 sides and is connected this exiting surface 100, is provided with corresponding to a LED substrate or a led support 2 (as shown in figure 10) and mutually is fixed.

These surface points 1010 define the curve and surface of this N-Side surf 101, any two are defined as respectively X-direction and Y direction by one of this datum level center of circle and mutually orthogonal straight line at first can this datum level, and to make this center of circle be the initial point of three dimensional space coordinate.Because the utility model is the lens arrangement of symmetrical expression, so take the Y-Z face as base surface, this lens body 10 lies in and presents mirror symmetry on the X-axis, similarly, take the X-Z face as base surface, 10 of this lens body present mirror symmetry on Y-axis.

Then, the mode of utilizing these surface points 1010 to set up curve and curved surface on the engineering has the multiple practice, do not described in detail in this, main system utilizes the concept that is smoothly connected, and makes it to be guaranteed that curve connects at given surface points 1010 places but haply,, and tangent slope and the curvature of curve are also joined continuously, go out the curved surface of this N-Side surf 101 with framework, hence one can see that, and the level and smooth degree of this N-Side surf 101 depends on these given surface points 1010 numbers.In present embodiment, these surface points 1010 are on the X-Z coordinate plane, and having each point (x, z) is (2.22,0), (3.51,1.62), (4.52,3.24), (5.39,4.86), (6.24,6.35), (6.91,8.10); On the Y-Z coordinate plane, have each point (y, z) and be (2.22,0), (3.51,1.62), (4.52,3.24), (5.39,4.86), (6.24,6.35), (6.91,8.10), and these surface points 1010 to X, Y, Z axis distance also have respectively a relative error p more than or equal to zero, and be wherein long take 1mm as a unit coordinate, then-and 0.05mm≤p≤0.05mm.

When this LED matrix is in this accommodation chamber, please in the lump with reference to Fig. 2,3, it is respectively one of the utility model preferred embodiment and implements aspect in optical track figure and the distribution curve flux figure on X-Z plane, this LED light will penetrate this lens body 10 and produce the phenomenons such as refraction or reflection, make optical path skew and form the lighting effect of the about 530cd of highlight strength (Candela, candle light).So, can utilize this LED optical lens 1 to adjust scope and the average luminous intensity of wanting irradiation area.

In addition, for realistic lighting demand is adjusted range of exposures and average luminous intensity, this LED optical lens 1 in this datum level to this exiting surface 100 apart from rigid condition under, the footpath of this exiting surface 100 of capable of regulating is wide, and these surface points 1010 of capable of regulating and change curve and the curved surface smoothness of this N-Side surf 101 distribute with the optical path that changes this LED.Shown in Fig. 4～6, its time enforcement aspect that is respectively the utility model preferred embodiment is in the cutaway view on X-Z plane, in optical track figure and the distribution curve flux figure on X-Z plane, in this exiting surface 100 diameter 13.68mm, and the each point (x, z) of these surface points 1010 on the X-Z coordinate plane is (1.80,0), (3.18,1.62), (4.26,3.24), (5.19,4.86), (6.05,6.48), (6.84,8.10); Each point (y, z) on the Y-Z coordinate plane is (1.80,0), (3.18,1.62), (4.26,3.24), (5.19,4.86), (6.05,6.48), when (6.84,8.10), can get the lighting effect of the highest 380cd of luminous intensity.

Shown in Fig. 7～9, its another enforcement aspect that is respectively the utility model preferred embodiment is in the cutaway view on X-Z plane, in optical track figure and the distribution curve flux figure on X-Z plane, in this exiting surface 100 diameter 14.84mm, and the each point (x, z) of these surface points 1010 on the X-Z coordinate plane is (2.15,0), (3.50,1.62), (4.65,3.24), (5.68,4.86), (6.61,6.48), (7.42,8.10); On the Y-Z coordinate plane, have each point (y, z) and be (2.15,0), (3.50,1.62), (4.65,3.24), (5.68,4.86), (6.61,6.48), when (7.42,8.10), highlight strength 140cd.So, when average luminous intensity was lower, this LED optical lens 1 can form wider range of exposures, adjusts the light characteristics of this LED with the functional need of foundation light fixture.

In addition, in the present embodiment, can be provided with the cloudy surface structure away from this incidence surface 102 places of this datum level, further to disperse the light that this LED launched and promote equal luminosity.

Hold, see also Figure 10, it is the use schematic diagram of the utility model preferred embodiment.As shown in the figure, because light fixture often adopts the LED of plural kenel, and each LED system configuration one LED optical lens 1, so be ease of assembly, these LED optical lenses 1 can corresponding these LED the position and arrange and be located on the transparent cover plate 20 after being fixed in this led support 2, organize in light fixture with direct dress after making the integrally formed lens cover of class, make and improve the assembling yield and reduce built-up time.And the surface of this transparent cover plate 20 can be provided with site 200 or atomizing is processed, and improves light and all spends to disperse the light that this LED launched.

The above only is the preferred embodiment of illustrative, but not is restricted person.Any spirit and category that does not break away from the utility model, and to its equivalent modifications of carrying out or change, all should be contained in the claim of the utility model.

Claims (6)

1. LED optical lens is characterized in that: have a lens body, comprise:

One exiting surface is circular surface, the long 13.68～14.84mm of its diameter;

One N-Side surf is comprised of a plurality of surface points, and one of this N-Side surf lateral margin and this exiting surface interconnect, and another lateral margin frame of this N-Side surf encloses and forms one of circular datum level, and wherein this datum level to the distance of this exiting surface is 8.1mm; And

One incidence surface, this datum level edge of its edge and this N-Side surf interconnects, and forms surface outside this lens body by this exiting surface, this N-Side surf and the sealing of this incidence surface, and forms an accommodation chamber in this incidence surface place indent of this lens body.

2. LED optical lens according to claim 1, it is characterized in that: with on this datum level any two be defined as respectively X-direction and Y direction by one of this datum level center of circle and mutually orthogonal straight line, and this center of circle is the initial point of three dimensional space coordinate, this lens body presents mirror symmetry take the Y-Z face as base surface on X-axis; This lens body presents mirror symmetry take the X-Z face as base surface on Y-axis, these surface points to X, Y, Z axis distance also has respectively a relative error p more than or equal to zero again, when a unit coordinate length is 1mm, and-0.05mm≤p≤0.05mm.

3. LED optical lens according to claim 2, it is characterized in that: these surface points are on the X-Z coordinate plane, has each point (x, z) be (2.22,0), (3.51,1.62), (4.52,3.24), (5.39,4.86), (6.24,6.35), (6.91,8.10); On the Y-Z coordinate plane, have each point (y, z) and be (2.22,0), (3.51,1.62), (4.52,3.24), (5.39,4.86), (6.24,6.35), (6.91,8.10).

4. LED optical lens according to claim 2, it is characterized in that: these surface points are on the X-Z coordinate plane, has each point (x, z) be (1.80,0), (3.18,1.62), (4.26,3.24), (5.19,4.86), (6.05,6.48), (6.84,8.10); On the Y-Z coordinate plane, have each point (y, z) and be (1.80,0), (3.18,1.62), (4.26,3.24), (5.19,4.86), (6.05,6.48), (6.84,8.10).

5. LED optical lens according to claim 2, it is characterized in that: these surface points are on the X-Z coordinate plane, has each point (x, z) be (2.15,0), (3.50,1.62), (4.65,3.24), (5.68,4.86), (6.61,6.48), (7.42,8.10); On the Y-Z coordinate plane, have each point (y, z) and be (2.15,0), (3.50,1.62), (4.65,3.24), (5.68,4.86), (6.61,6.48), (7.42,8.10).

6. LED optical lens according to claim 1 is characterized in that: more comprise an engaging body, this engaging system is located at this exiting surface one side, is provided with mutually being fixed with respect to a LED substrate.

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