CN101943370A

CN101943370A - LED (Light Emitting Diode) optical lens

Info

Publication number: CN101943370A
Application number: CN 201010286566
Authority: CN
Inventors: 胡栋
Original assignee: CHONGQING SILIAN OPTOELECTRONIC SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: CHONGQING SILIAN OPTOELECTRONIC SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2010-09-19
Filing date: 2010-09-19
Publication date: 2011-01-12

Abstract

The invention relates to an LED optical lens comprising a cylindrical light transmission body with an elliptic section, wherein the bottom of the cylindrical light transmission body is provided with a lamp hole which is used for placing an LED in, a fully reflecting surface is arranged around the lamp hole, the front end of the cylindrical light transmission body is provided with an emitting surface which is matched with a cambered surface of a handle pipe, and the emitting surface is an elliptic curved surface with a projected middle which is smoothly changed to an edge. The LED optical lens evenly irradiates light on the ground by optical processing, eliminates an adverse condition of decentralized light divergence, greatly increases optical utilization rate, effectively controls glare at the same time, greatly reduces the discomfort of pedestrians, achieves illuminating effect of only seeing light without a lamp and has simple structure and lower cost.

Description

The LED optical lens

Technical field

The present invention relates to a kind of LED optical lens, particularly a kind of new type lens that is applied to LED illumination handrail.

Background technology

Utilize that LED has that driving voltage is low, fast reaction and low power consumption characteristic, the LED lighting and develop, in order to replacing traditional light fixture, be trend trend now.

And because the characteristics of luminescence of LED, though luminous have a directionality, but its light that sends is a cobblestone luminous intensity distribution, effective bright dipping that LED is throwed forward is a fix lighting angle, be that LED ejaculation light still has the shortcoming that detracts because of scattering, improve its illumination and effect as desire, directly processing has great difficulty.As LED illumination handrail, the power of LED there is strict regulation, the strict demand of existing illumination also has strict dazzle control in public places.Develop for this reason and the sheathed LED optical lens of a kind of emission side at LED, emitted light when making LED luminous, can be via the skew refraction of LED lens, the light of scattering can be guided be uniform shadow surface, at present existing various forms of LED lens are asked the city, yet various forms of LED lens still have complex structure to be difficult for manufacturing, the higher problem of cost.For this reason, how to design the optical lens of LED illumination handrail, make it be easy to make and reduce cost, and can improve the efficient of LED light effective rate of utilization and raising LED light fixture, be the major subjects of industry research and development.

Summary of the invention

The object of the present invention is to provide a kind of LED optical lens, have simple in structure, cost is lower, is LED illumination handrail design specially, and this optical lens passes through optical treatment, with the light uniform irradiation to ground, eliminate the rough sledding that divergence of beam is not concentrated, increased the utilization rate of light greatly, simultaneously effectively control dazzle, reduced pedestrian's discomfort greatly, reached and only see that light loses the illuminating effect of lamp.

For achieving the above object, the technical solution adopted in the present invention is, the LED optical lens, include the printing opacity body of the column of elliptic cross-section, be provided with the lamp hole that is used to insert LED in the bottom of described printing opacity body, be provided with the full plane of incidence around described lamp hole, the front end of described printing opacity body is provided with the exit facet that the surperficial cambered surface with handrail tube matches, and this exit facet is the oval calotte of the outstanding smooth excessiveness in middle part to the edge.

Adopt the technique effect that technique scheme reached to be: this LED optical lens is used for LED balustrade lighting device, this optical lens passes through optical treatment, with the light uniform irradiation to ground, eliminate the rough sledding that divergence of beam is not concentrated, increased the utilization rate of light greatly, simultaneously effectively control dazzle, reduced pedestrian's discomfort greatly, reach and only see that light loses the illuminating effect of lamp, it is simple in structure, and cost is lower.

Further, in order to reflect the light that LED lamp pearl sends better, the inwall of described lamp hole is a concave spherical surface.The concave spherical surface design of inwall is refracted ray effectively, and is beneficial to industrial production.

Further, change the trend of LED lamp pearl circuit for fear of this LED optical lens is installed, the bottom of described printing opacity body is provided with the notch of two rectangles.The notch of two rectangles is set in printing opacity body bottom, can avoids being urged on the substrate that is provided with LED lamp pearl and the solder joint of electric wire.

Further, for fear of support in the handrail tube that extruding is welded on, the two ends of described printing opacity body length direction are to printing opacity body bottom plane inclined.Can avoid pushing the support of welding effectively, and this LED optical lens can conveniently be installed.

Further, for the frame for movement of using screw to connect is fixed on the LED optical lens on the handrail, described printing opacity body is provided with two up big and down small change internal diameter through holes that run through along short transverse.Last footpath is bigger, is convenient to nut and passes through, and following footpath is less, stops nut to pass through, and is convenient to the screw in compression optical lens.With by these two through holes, utilize screw like a cork the LED optical lens to be fixed on the handrail.

Further, in order further optics to be distributed on the shadow surface, described exit facet is a frosting.By the exit facet that described frosted is handled, can't see inner structure and parts.This design except beautiful attractive in appearance, can also prevent that other people from directly observing by shadow surface, thereby protect the secret of its internal structure.

Description of drawings

The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:

Fig. 1 is that the master of LED optical lens of the present invention looks perspective view;

Fig. 2 is the rear perspective structural representation of LED optical lens of the present invention;

Fig. 3 is the main TV structure schematic diagram of LED optical lens of the present invention;

Fig. 4 is the side-looking structural representation of LED optical lens of the present invention;

Fig. 5 is the backsight structural representation of LED optical lens of the present invention;

Fig. 6 is the structural representation of looking up of LED optical lens of the present invention;

The specific embodiment

Extremely shown in Figure 6 as Fig. 1, the LED optical lens, whole printing opacity body 1 is inlayed the lamp hole place that is placed in LED illumination handrail, printing opacity body 1 is that a cross section is oval-shaped cylinder substantially, the end face of printing opacity body 1 is the exit facet 2 of LED light, and the surperficial cambered surface of this exit facet 2 and illumination handrail is consistent, and this exit facet 2 is the outstanding smooth excessiveness in middle part oval calottes to the edge, and handle through frosted on the surface, can't see inner structure and parts from exit facet 2.The bottom 4 of printing opacity body 1 is a plane, and the middle part of bottom 4 has a groove 5 that holds LED lamp pearl, and the inner surface of groove 5 is hemispheric full planes of incidence.The two ends of the ellipse short shaft direction of bottom 4 have two rectangular notches 11, and this rectangular notch 11 is used to hold the solder joint on the substrate, can avoid butt welding point to cause extruding.The two ends of the length direction of printing opacity body 1 are respectively the inclined-planes 22 of symmetry, and inclined-plane 22 is to be tilted in bottom 4 by exit facet 2, mainly is conveniently to be installed in the lamp hole.Also be provided with two through holes 21 that become internal diameter on printing opacity body 1, through hole 21 is through the short transverse of printing opacity body 1, and last footpath is bigger, is convenient to nut and passes through, and following footpath is less, stops nut to pass through, and is convenient to the screw in compression optical lens.With by these two through holes, utilize screw like a cork the LED optical lens to be fixed on the handrail.This printing opacity body 1 has adopted above-mentioned optical design, and the light uniform irradiation to ground, has been eliminated the rough sledding that divergence of beam is not concentrated, increased the utilization rate of light greatly, effectively control dazzle simultaneously, reduced pedestrian's discomfort greatly, reach and only see that light loses the illuminating effect of lamp.

Above-described only is preferred implementation of the present invention; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from structure of the present invention; can also make some distortion and improvement; these also should be considered as protection scope of the present invention, and these can not influence effect of the invention process and practical applicability.

Claims

1.LED optical lens, include the printing opacity body of the column of elliptic cross-section, be provided with the lamp hole that is used to insert LED in the bottom of described printing opacity body, be provided with the full plane of incidence around described lamp hole, it is characterized in that, the front end of described printing opacity body is provided with the exit facet that the outer wall with handrail tube matches, and this exit facet is the oval calotte of the outstanding smooth excessiveness in middle part to the edge.

2. LED optical lens as claimed in claim 1 is characterized in that, the inwall of described lamp hole is a concave spherical surface.

3. LED optical lens as claimed in claim 1 or 2 is characterized in that, the bottom of described printing opacity body is provided with the rectangular notch that the frame for movement on two and the LED substrate matches.

4. LED optical lens as claimed in claim 3 is characterized in that, the end face of described printing opacity body length direction is oblique inclined-plane in printing opacity body bottom.

5. LED optical lens as claimed in claim 4 is characterized in that, described printing opacity body is provided with two up big and down small change internal diameter through holes that run through along short transverse.

6. LED optical lens as claimed in claim 5 is characterized in that, described exit facet is a frosting.