CN201348193Y

CN201348193Y - Light emitting structure of LED street lamp

Info

Publication number: CN201348193Y
Application number: CNU200920050012XU
Authority: CN
Inventors: 徐连城; 奚文胜
Original assignee: Guangdong Real Faith Lighting Co Ltd
Current assignee: Guangdong Real Faith Lighting Co Ltd
Priority date: 2009-01-13
Filing date: 2009-01-13
Publication date: 2009-11-18
Anticipated expiration: 2019-01-13

Abstract

The utility model discloses a light-emitting structure of an LED street lamp, which comprises a plurality of LED light source bodies and LED lenses, wherein, the LED light source bodies are fixed on a substrate; and the LED lenses is arranged at the periphery of the substrate. The light-emitting structure is characterized in that one or more free reflective curved surfaces which are asymmetrically distributed are formed on the LED lens; two LED light source bodies with LED lenses are taken as a unit; and an array with the N lines and M rows is formed by a plurality of units, wherein, the N is more than or equal to one, and the M is more than one. The shape of the LED lens are modified and designed optimally by the utility model, so that the long bat wings type radiation form required by a street lamp is achieved. A luminaire has the advantages of high reliability, small weight and low cost.

Description

A kind of light emitting structures of LED street lamp

Technical field

The utility model relates to LED lamp technical field, particularly a kind of light emitting structures of LED street lamp.

Background technology

Present LED street lamp, Tunnel Lamp in use because the led light source range is short, effective hot spot scope is less when using the lens luminous intensity distribution, the lamp installation limitation in height is below 8M.The led light source forms of radiation is mainly circle or lambert's type, do not reach the required bat aerofoil profile forms of radiation of road lighting, using the lens luminous intensity distribution, because the constraint of the design and the ability of optimization, do not reach desirable effective hot spot scope when causing the LED light fixture to use, thereby cause LED light fixture light extraction efficiency to descend.Lens design hot spot is a symmetric form, the elevation angle that need increase certain angle on light fixture just can reach car lane illumination and effective hot spot scope of design, need to increase loaded down with trivial details installing components such as joint angle, cause the light fixture reliability to reduce, weight, cost rise.

Summary of the invention

The purpose of this utility model is exactly a kind of not only light extraction efficiency height of providing for the deficiency that solves prior art, weight is little, cost is low, and the light emitting structures of the LED street lamp that effectively the hot spot scope is big.

The utility model is to adopt following technical solution to realize above-mentioned purpose: a kind of light emitting structures of LED street lamp, comprise several led light source bodies and the peripheral LED lens that are provided with thereof that are fixed on the substrate, it is characterized in that described LED lens are provided with the free reflecting curved surface of one or more distribution or asymmetrical distribution.

As further specifying of such scheme, described two led light source bodies that have the LED lens are a unit, and several unit constitute the array of the capable M row of N, N 〉=1 wherein, M 〉=1.

The concavo-convex cooperation of two LED lens head and the tail in the described same unit.

Described LED lens are the long strip type outer cover, the cross section undulate of LED lens.

The beneficial effect that the utility model adopts above-mentioned technical solution to reach is:

1, the utility model adopts the free form surface of distribution or asymmetrical distribution as reflection from lens face, the reflection angle that makes the LED lamp is asymmetric, the light fixture exiting surface still can reach design illumination and effective hot spot scope under the situation on parallel road surface, do not need to increase the angle joint, the light fixture reliability rises, and weight, cost descend.

2, the LED lens shape is optimized improvement design, reaches the required long bat aerofoil profile forms of radiation of street lamp, setting height(from bottom) promotes about 2m than product of the prior art; Far firing range, effectively the hot spot scope is big, allows LED light fixture light extraction efficiency promote, and reaches the energy-efficient purpose of LED light fixture.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the side-looking structural representation of Fig. 1;

Fig. 3 is the plan structure schematic diagram of Fig. 1;

Fig. 4 is a perspective view of the present utility model.

Description of reference numerals: 1, substrate 2, LED lens 3, free reflecting curved surface

The specific embodiment

As Fig. 1～shown in Figure 4, the light emitting structures of a kind of LED street lamp of the utility model, comprise several led light source bodies and the peripheral LED lens 2 that are provided with thereof that are fixed on the substrate 1, LED lens 2 are provided with the free reflecting curved surface 3 of one or more distribution or asymmetrical distribution, the reflection angle that makes the LED lamp is asymmetric, reaches the required long bat aerofoil profile forms of radiation of street lamp.In the present embodiment, as a unit, several unit constitute the array of the capable M row of N with two led light source bodies 1 that have LED lens 2, N 〉=1 wherein, M 〉=1.The concavo-convex cooperation of two LED lens head and the tail in the same unit, wherein, the LED lens are the long strip type outer cover, the cross section undulate of LED lens 2.

When mounted, setting height(from bottom) promotes 2m than present mill run, makes its far firing range, and effectively the hot spot scope is big, allows LED light fixture light extraction efficiency promote, and reaches the energy-efficient purpose of LED light fixture.

The utility model is not limited to the foregoing description; described LED lamp can also be a unit with three or more; and except on the highway lamp, using; can also be used in other place; as the Tunnel Lamp aspect; any those skilled in the art can do numerous modifications and variations, under the spirit that does not break away from utility model, all in the claimed scope of the utility model.

Claims

1, a kind of light emitting structures of LED street lamp comprises several led light source bodies and the peripheral LED lens that are provided with thereof that are fixed on the substrate, and it is characterized in that described LED lens are provided with the free reflecting curved surface of one or more distribution or asymmetrical distribution.

2, the light emitting structures of a kind of LED street lamp according to claim 1 is characterized in that: described two led light source bodies that have the LED lens are a unit, and several unit constitute the array of the capable M row of N, N 〉=1 wherein, M 〉=1.

3, the light emitting structures of a kind of LED street lamp according to claim 2 is characterized in that: the concavo-convex cooperation of two LED lens head and the tail in the described same unit.

4, according to the light emitting structures of claim 1 or 3 described a kind of LED street lamps, it is characterized in that: described LED lens are the long strip type outer cover, the cross section undulate of LED lens.