CN201751707U

CN201751707U - Symmetric street lamp lens

Info

Publication number: CN201751707U
Application number: CN2010201891068U
Authority: CN
Inventors: 唐德龙
Original assignee: LEDLINK OPTICS (YANG ZHOU) CO LTD
Current assignee: LEDLINK OPTICS (YANG ZHOU) CO LTD; Ledlink Optics Inc
Priority date: 2010-05-07
Filing date: 2010-05-07
Publication date: 2011-02-23
Anticipated expiration: 2020-05-07

Abstract

The utility model provides a symmetric street lamp lens. The periphery of the bottom surface of a main body is provided with a light-emitting surface, a joint between the periphery of the bottom surface and the light-emitting surface is provided with a side edge line, the bottom surface is concave to form into a mold cavity, the main body is symmetric to a first long axial datum plane, the main body is provided with a first short axial datum plane, a second short axial datum plane and a third short axial datum plane at intervals, and the distance of the two cross points between the first short axial datum plane and side edge line axial datum plane and the distance of the two cross points between the third axial datum plane and the side edge are larger than the distance of the two cross points between the second axial datum plane and the side edge line. As the LED is arranged in the mold cavity, the symmetric street lamp lens can offer a symmetric and large-scope illuminating area.

Description

The symmetrical expression street lamp lens

Technical field

The utility model relates to a kind of street lamp, and particularly relating to a kind ofly can provide symmetry and all bright field of illumination, effectively light is shone the symmetrical expression street lamp lens in road.

Background technology

Street lamp, be called street lamp again, be arranged on the division island between road both sides or contact road, street lamp is opening usually and produces luminous illuminating effect when nightfall, then be closed condition at cockcrow, when providing the darkness visual isopter not good by this, pedestrian and driver can know the resolution condition of road surface, to obtain road safety.

Street lamp traditionally adopts bulb or the fluorescent lamp that is filled with inert gas, but in recent years, the global warming problem is serious, all circles advocate carbon reduction one after another, so various environment-friendly products come into one's own day by day, with regard to the illumination aspect, with light emitting diode (Light Emitting Diode; LED) have development potentiality most, it has power saving, high brightness, service life than advantages such as length, replaces conventional bulb gradually, and is applied to widely on the various lighting devices.

The LED that is applied to street lamp in the prior art can be covered with lens in its emission side, emitted light was injected these lens and is produced the skew refraction when LED was luminous, the light of this skew refraction is when penetrating lens surface, can further produce the skew refraction, the ray cast of adjusting LED by this and being launched is in specific direction and scope.

Yet, when street lamp (for example: in the time of four drawing lines) is arranged at broad road, the field of illumination scope that the lens of prior art can provide LED light to produce is less, can't shine on a large scale on road, cause the illuminating effect of road not good enough, perhaps must set up street lamp and just be able to comprehensive irradiation in road, but thus, just the increase that can cause the street lamp setup fee to use, and remain further to be improved.

This shows that above-mentioned transitional street lamps obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of novel symmetrical expression street lamp lens, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.

Summary of the invention

The purpose of this utility model is, overcomes the defective that existing symmetrical expression street lamp lens exists, and a kind of symmetrical expression street lamp lens is provided, and by designing the lens with symmetrical structure, can produce symmetry and the bigger field of illumination of scope so that LED to be provided.

The purpose of this utility model and to solve its technical problem be to adopt following technical scheme to realize.According to a kind of symmetrical expression street lamp lens that the utility model proposes, it has a body, this body is a light penetrating object, it has a bottom surface and upwards is formed with an exiting surface at this bottom surface periphery, be formed with a side line in the junction of bottom surface periphery and this exiting surface, and be formed with a die cavity in the bottom surface indent, the inner concave of this die cavity is a plane of incidence, body is symmetrical in one first major axis to datum level, be formed with at interval in regular turn on the body perpendicular to this first major axis to one first minor axis of datum level to datum level, one second minor axis to datum level and one the 3rd minor axis to datum level, the first and the 3rd minor axis to datum level respectively with the two joinings distance of side line greater than the two joining distances of second minor axis to datum level and side line; The side line is a mm with respect to first major axis to the distance of datum level, is b mm with respect to second minor axis to the distance of datum level, and the side line includes the (a of following each point in regular turn, b): (4.29,10.00), (5.60,9.98), (6.50,9.45), (6.80,8.35), (6.66,6.74), (6.56,4.53), (6.53,3.18), (6.52,1.74) and (6.50,1.14); The bottom surface is positioned at a datum plane, be formed with on the body in addition one be parallel to first major axis to second major axis of datum level to datum level, exiting surface and this second major axis are c mm to the intersecting lens of datum level with respect to the distance of datum plane, is d mm with respect to second minor axis to the distance of datum level, the exiting surface and second major axis include the (c of following each point in regular turn to the intersecting lens of datum level, d): (2.02,10.00), (3.75,10.00), (4.91,9.85), (5.76,9.15), (5.84,7.63), (5.87,6.23), (5.91,4.70) and (5.91,2.38); Further be formed with one on the body and be parallel to first minor axis, second minor axis and the 3rd minor axis to the 4th minor axis of datum level to datum level, exiting surface and the 4th minor axis are e mm to the intersecting lens of datum level with respect to the distance of datum plane, is f mm with respect to first major axis to the distance of datum level, exiting surface and the 4th minor axis include the (e of following each point in regular turn to the intersecting lens of datum level, f): (1.29,7.14), (2.17,7.14), (3.26,7.03), (3.97,6.55), (4.68,5.94), (5.17,4.66), (5.56,3.57), (5.84,2.53) and (5.93,1.28), above-mentioned each numerical error scope is ± 0.03mm.

The purpose of this utility model and solve its technical problem and can also be further achieved by the following technical measures.

Aforesaid symmetrical expression street lamp lens, wherein this exiting surface has different curvature with this plane of incidence.

The utility model compared with prior art has tangible advantage and beneficial effect.By technique scheme, the utility model symmetrical expression street lamp lens has following advantage and beneficial effect at least: the light that LED launched is to be bilateral symmetry with first major axis to datum level by the field of illumination that body produces, and the minor axis of its field of illumination is big to scope, on the road applicable to broadness, irradiation that can be comprehensive really is in road, and not needing is just provided broad road surface to have good illuminating effect by setting up street lamp.

In sum, a kind of symmetrical expression street lamp lens of the utility model, it is upwards to be formed with an exiting surface at the bottom surface of body periphery, the junction of this bottom surface periphery and this exiting surface is formed with a side line, and the bottom surface indent is formed with a die cavity, body is symmetrical in one first major axis to datum level, and on body, be formed with one first minor axis to datum level at interval, one second minor axis to datum level and one the 3rd minor axis to datum level, the first and the 3rd minor axis to datum level respectively with two joinings of side line distance greater than the two joining distances of second minor axis to datum level and side line, by LED is arranged in this die cavity, and then can provide symmetry and the bigger field of illumination of scope.The utility model has obvious improvement technically, and has tangible good effect, really is a new and innovative, progressive, practical new design.

Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.

Description of drawings

Fig. 1 is stereoscopic figure of the present utility model.

Fig. 2 is a bottom view of the present utility model.

Fig. 3 is a side cutaway view of the present utility model.

Fig. 4 is an elevation cross-sectional view of the present utility model.

Fig. 5 is the Illumination Distribution figure that is arranged at LED of the present utility model.

Fig. 6 is the distribution curve flux figure that is arranged at LED of the present utility model.

10: body 11: bottom surface

111: die cavity 112: the plane of incidence

12: exiting surface 13: the side line

X1: first major axis is to datum level X2: second major axis is to datum level

Y1: first minor axis is to datum level Y2: second minor axis is to datum level

Y3: the 3rd minor axis is to datum level Y4: the 4th minor axis is to datum level

Z: datum plane La: first curve

Lb: second curve

The specific embodiment

For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to its specific embodiment of symmetrical expression street lamp lens, structure, feature and the effect thereof that the utility model proposes, describe in detail as after.

Relevant aforementioned and other technology contents, characteristics and effect of the present utility model can clearly present in the following detailed description that cooperates with reference to graphic preferred embodiment.Explanation by the specific embodiment, when can being to reach technological means and the effect that predetermined purpose takes to be able to more deeply and concrete understanding to the utility model, yet appended graphic only provide with reference to the usefulness of explanation, be not to be used for the utility model is limited.

See also shown in Figure 1, symmetrical expression street lamp lens of the present utility model, it has a body 10, this body 10 is the light penetrating object of an elongated, it has a bottom surface 11 and upwards is formed with an exiting surface 12 at these bottom surface 11 peripheries, and in the bottom surface 11 indents are formed with a die cavity 111, the inner concave of this die cavity 111 is a plane of incidence 112, this exiting surface 12 has different curvature with this plane of incidence 112;

Please cooperate consult shown in Figure 2, the junction of bottom surface 11 peripheries and this exiting surface 12 is formed with a side line 13, body 10 is symmetrical in one first major axis to datum level X1, be formed with at interval in regular turn on the body 10 perpendicular to this major axis to one first minor axis of datum level X1 to datum level Y1, one second minor axis to datum level Y2 and one the 3rd minor axis to datum level Y3, this first minor axis is A and A ' to two joinings of datum level Y1 and side line 13, this second minor axis is B and B ' to two joinings of datum level Y2 and side line 13, the 3rd minor axis is C and C ' to two joinings of datum level Y3 and side line 13, and wherein the distance between distance between A and the A ' and C and the C ' is greater than the distance between B and the B ';

Side line 13 is a mm with respect to first major axis to the distance of datum level X1, and side line 13 is b mm with respect to second minor axis to the distance of datum level Y2, and side line 13 includes the (a of following each point in regular turn, b): (4.29,10.00), (5.60,9.98), (6.50,9.45), (6.80,8.35), (6.66,6.74), (6.56,4.53), (6.53,3.18), (6.52,1.74) and (6.50,1.14), the numerical error scope is ± 0.03mm;

See also shown in Figure 3, bottom surface 11 is positioned at a datum plane Z, be formed with on the body 10 in addition one be parallel to first major axis to second major axis of datum level X1 to datum level X2, the exiting surface 12 and second major axis are c mm to the intersecting lens of datum level X2 with respect to the distance of datum plane Z, the exiting surface 12 and second major axis are d mm with respect to second minor axis to the distance of datum level Y2 to the intersecting lens of datum level X2, the exiting surface 12 and second major axis include the (c of following each point in regular turn to the intersecting lens of datum level X2, d): (2.02,10.00), (3.75,10.00), (4.91,9.85), (5.76,9.15), (5.84,7.63), (5.87,6.23), (5.91,4.70) and (5.91,2.38), the numerical error scope is ± 0.03mm;

Please cooperate consult shown in Figure 4, further be formed with one on the body (10) and be parallel to the first minor axis Y1, the second minor axis Y2 and the 3rd minor axis to the 4th minor axis of datum level to datum level Y4, exiting surface 12 and the 4th minor axis are e mm to the intersecting lens of datum level Y4 with respect to the distance of datum plane Z, exiting surface 12 and the 4th minor axis are fmm with respect to first major axis to the distance of datum level X1 to the intersecting lens of datum level Y4, exiting surface 12 and the 4th minor axis include the (e of following each point in regular turn to the intersecting lens of datum level Y4, f): (1.29,7.14), (2.17,7.14), (3.26,7.03), (3.97,6.55), (4.68,5.94), (5.17,4.66), (5.56,3.57), (5.84,2.53) and (5.93,1.28), the numerical error scope is ± 0.03mm.

When practical application, be that a LED is installed in the die cavity 111, the light that this LED is produced when luminous is injected body 10 inside and when exiting surface 12 penetrates, can have been produced the skew refraction effect from the plane of incidence 112, reaches the control ray cast by this in the purpose of specific region.

See also shown in Figure 5, the Illumination Distribution figure that is projected by body 10 of the present utility model for LED, the unit of the coordinate of the X-axis of expression and Z axle is all millimeter (millimeters) on the figure, the left side is the illumination scale, and its unit is lux (lux), coordinate (0,0) is the LED placement, its field of illumination that projects is microscler, its long side direction symmetry and extend coordinate (0,0) and arranged on left and right sides; Please cooperate consult shown in Figure 6, radial coordinate peripheral on the figure is an angle, unit for the degree (°), axial coordinate is light intensity (luminous intensity), unit is candle light (cd), and the first curve La is the luminous intensity distribution of the field of illumination long side direction of Fig. 5, and the second curve Lb is the luminous intensity distribution of the field of illumination short side direction of Fig. 5, by Fig. 5 and shown in Figure 6, the utility model provides symmetry and the bigger distribution of light of scope.

During the street lamp of the utility model on being applied to broad road, the light that LED sent is big to scope by the minor axis of body 10 formed field of illuminations, can shine really on road, make pedestrian or driver under this irradiation environment can have clearly sight line, and then guaranteed road safety.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art are not in breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.

Claims

1. symmetrical expression street lamp lens, it is characterized in that it has a body, this body is a light penetrating object, it has a bottom surface and upwards is formed with an exiting surface at this bottom surface periphery, be formed with a side line in the junction of bottom surface periphery and this exiting surface, and be formed with a die cavity in the bottom surface indent, the inner concave of this die cavity is a plane of incidence, body is symmetrical in one first major axis to datum level, be formed with at interval in regular turn on the body perpendicular to this first major axis to one first minor axis of datum level to datum level, one second minor axis to datum level and one the 3rd minor axis to datum level, the first and the 3rd minor axis to datum level respectively with the two joinings distance of side line greater than the two joining distances of second minor axis to datum level and side line;

The side line is a mm with respect to first major axis to the distance of datum level, is b mm with respect to second minor axis to the distance of datum level, and the side line includes the (a of following each point in regular turn, b): (4.29,10.00), (5.60,9.98), (6.50,9.45), (6.80,8.35), (6.66,6.74), (6.56,4.53), (6.53,3.18), (6.52,1.74) and (6.50,1.14);

The bottom surface is positioned at a datum plane, be formed with on the body in addition one be parallel to first major axis to second major axis of datum level to datum level, exiting surface and this second major axis are c mm to the intersecting lens of datum level with respect to the distance of datum plane, is d mm with respect to second minor axis to the distance of datum level, the exiting surface and second major axis include the (c of following each point in regular turn to the intersecting lens of datum level, d): (2.02,10.00), (3.75,10.00), (4.91,9.85), (5.76,9.15), (5.84,7.63), (5.87,6.23), (5.91,4.70) and (5.91,2.38);

Further be formed with one on the body and be parallel to first minor axis, second minor axis and the 3rd minor axis to the 4th minor axis of datum level to datum level, exiting surface and the 4th minor axis are e mm to the intersecting lens of datum level with respect to the distance of datum plane, is f mm with respect to first major axis to the distance of datum level, exiting surface and the 4th minor axis include the (e of following each point in regular turn to the intersecting lens of datum level, f): (1.29,7.14), (2.17,7.14), (3.26,7.03), (3.97,6.55), (4.68,5.94), (5.17,4.66), (5.56,3.57), (5.84,2.53) and (5.93,1.28), above-mentioned each numerical error scope is ± 0.03mm.

2. symmetrical expression street lamp lens according to claim 1 is characterized in that wherein this exiting surface has different curvature with this plane of incidence.