CN209876700U

CN209876700U - LED lamp capable of reducing light pollution

Info

Publication number: CN209876700U
Application number: CN201920084260.XU
Authority: CN
Inventors: 陆晨博; 龚成; 陈辉
Original assignee: JIANGSU BOTH ENGINEERING Co Ltd
Current assignee: Baicheng System Technology Co.,Ltd.
Priority date: 2019-01-17
Filing date: 2019-01-17
Publication date: 2019-12-31
Anticipated expiration: 2029-01-17

Abstract

The utility model aims to provide a LED lamp for reducing light pollution, which can set the illumination range according to the actual road conditions, and comprises a lampshade, a mounting groove and a lamp group; the mounting groove is arranged on the lower side of the lampshade; the lamp group is arranged in the mounting groove; the lamp group further comprises an LED lamp and a lens; the LED lamps correspond to the lenses one by one; the lens comprises an incident surface, a free emergent curved surface and a total reflection surface; the incident surface comprises a refraction cylindrical surface and a refraction arc surface; the LED lamps are arranged in the refraction cylindrical surface and the refraction arc surface; the free emergent curved surface comprises a first free refraction curved surface and a second free refraction curved surface; the beneficial effects of the utility model are that the illumination that produces can perfectly cover the rectangle illumination face on road, do not have the illumination to the region outside the road and get into to effectively reduced the harm that light pollution produced to people, animal, plant, also be a embodiment of environmental protection.

Description

LED lamp capable of reducing light pollution

Technical Field

The utility model relates to an illumination lamps and lanterns especially relate to a reduce light pollution's LED lamp.

Background

Improper or excessive use of artificial lighting-known as light pollution. The light pollution is composed of: glare-discomfort of vision caused by excessive brightness; night sky glow-the light above night in residential areas; intrusion of light — intrusion of light into places where it is not needed; diffuse light-excessively bright, chaotic and redundant light sources.

Existing outdoor lighting has a profound effect on light pollution, and in fact many outdoor lighting used at night is inefficient, too bright, improperly targeted, improperly shaded, and in many cases, completely unnecessary. This light and the electricity used to create it is wasted in the sky, rather than being concentrated on the actual objects and areas that one wants to illuminate.

The published Chinese utility model patent has the publication number: CN102506360B, patent name: installation angle adjustable LED street lamp, application date: 20111117, it discloses a lighting fixture, especially a LED street lamp with adjustable installation angle. The street lamp comprises a heat dissipation frame, an LED assembly, a driving power supply, angle adjusters and lamp arm insertion tubes, wherein the LED assembly is arranged on the lower surface of the heat dissipation frame, a power supply bin is fixedly arranged on the upper surface of the heat dissipation frame, each angle adjuster comprises a pair of angle adjusting parts, each angle adjusting part comprises a rotating arm, a fixed arm, a riveting shaft and a bolt, the head end of each rotating arm is a rotating disc, the tail end of each rotating arm is fixedly connected with the power supply bin, the head end of each fixed arm is a rotating disc cavity, the tail end of each fixed arm is fixedly connected with the lamp arm insertion tube, and the rotating arms and the fixed arms. Different from the existing LED street lamp, the LED street lamp with the adjustable installation angle has the function of adjusting the irradiation elevation angle, and can almost match with the street lamp poles (arms) with various elevation angles at present to realize the optimal illumination angle and achieve the optimal road surface irradiation effect.

Asymmetric free-form surface secondary optics: according to different pavement requirements, the light output of the LED units only needs to be simply superposed, and the secondary light distribution of the free-form surfaces of the LEDs is directly completed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reduce light pollution's LED lamp can carry out the illumination scope setting according to road actual conditions.

The utility model provides a LED lamp for reducing light pollution, which comprises a lampshade 1, a mounting groove 2 and a lamp group;

the mounting groove 2 is arranged at the lower side of the lampshade 1; the lamp group is arranged in the mounting groove 2;

the lamp group further comprises an LED lamp 31 and a lens 32; the LED lamps 31 correspond to the lenses 32 one by one;

the lens 32 comprises an incident surface, a free emergent curved surface and a total reflection surface;

the incident surface comprises a refraction cylindrical surface 321 and a refraction arc surface 322; the LED lamp 31 is disposed in the refraction cylindrical surface 321 and the refraction arc surface 322;

the free exit curved surface includes a first free refractive curved surface 323 and a second free refractive curved surface 324; the upper edge of the total reflection surface is connected with the upper edge of the first free refraction curved surface 323 to form an outer convex edge of the lens 32, and the lower edge of the first free refraction curved surface 323 is connected with the edge of the second free refraction curved surface 324 to form a groove.

Preferably, a plurality of LED lamps 31 and a plurality of lenses 32 are provided; each group of the LED lamps 31 and the lenses 32 are distributed in the mounting groove 2 in a matrix manner.

Preferably, each set of the LED lamp 31 and the lens 32 is welded in the mounting groove 2 by an electric soldering iron.

Preferably, the lampshade 1 is also provided with a power supply connection module (4); the power supply connection module (4) is arranged on one side of the mounting groove 2.

Preferably, the LED lamp 31 is spirally mounted in the incident surface.

Preferably, the lens 32 is an asymmetric free-form surface lens.

The beneficial effects of the utility model are that the illumination that produces can perfectly cover the rectangle illumination face on road, do not have the illumination to the region outside the road and get into to effectively reduced the harm that light pollution produced to people, animal, plant, also be a embodiment of environmental protection.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a lens structure;

FIG. 3 is a schematic view of light contamination;

FIG. 4 is a schematic view of the present invention;

in the figure, the position of the upper end of the main shaft,

1. a lamp shade; 2. mounting grooves; an LED lamp; 32. a lens; 321. a refractive cylindrical surface; 322. a refracting arc surface; 323. a first free-refractive curved surface; 324. a second free-refractive curved surface; 4. and a power supply connection module.

Detailed Description

The present invention will now be described in detail with reference to the drawings, which are provided for illustrative and explanatory purposes only and should not be construed as limiting the scope of the present invention in any way.

the lens 32 comprises an incident surface, a free emergent curved surface and a total reflection surface; the total reflection surface and the free emergent curved surface form the outer contour of the lens.

The total reflection surface and the free emergent curved surface form the outer contour of the lens.

In this embodiment, preferably, a plurality of LED lamps 31 and a plurality of lenses 32 are provided; each group of the LED lamps 31 and the lenses 32 are distributed in the mounting groove 2 in a matrix manner.

In this embodiment, preferably, each group of the LED lamps 31 and the lens 32 is welded in the mounting groove 2 by an electric soldering iron.

In the preferred embodiment, the lampshade 1 is further provided with a power supply connection module (4); the power supply connection module (4) is arranged on one side of the mounting groove 2.

Preferably, in the present embodiment, the LED lamp 31 is spirally installed in the incident surface.

In the present embodiment, the lens 32 is preferably an asymmetric free-form surface lens.

As is preferred in the present embodiment, the first,

dividing the lens curved surface and the target light spot into grids with equal quantity, corresponding node vectors of the grids one by one according to the Snell equation of incident light and emergent light, and calculating the control grid of the whole curved surface by a computer iteration method.

As shown in fig. 3, for a road with a living area around, a large part of light of the conventional street lamp is emitted into the living area, and the part of light is just a harmful light area, which is commonly called a glare area, so that people feel uncomfortable and light pollution is caused in a house.

By carrying out light proportioning on the asymmetrical free light curved surface element, a light distribution module suitable for the size of the road can be prepared, the LED street lamp is assembled, and then the height of the lamp and the spacing distance between the street lamps are adjusted, so that the effective light irradiated by the LED street lamp can perfectly cover the whole road, and no redundant light enters the area outside the road, and the area outside the road is ensured not to be polluted by the light of the street lamp.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The above-mentioned embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An LED lamp capable of reducing light pollution comprises a lampshade (1), a mounting groove (2) and a lamp group;

it is characterized in that the preparation method is characterized in that,

the mounting groove (2) is arranged on the lower side of the lampshade (1); the lamp group is arranged in the mounting groove (2);

the lamp group further comprises an LED lamp (31) and a lens (32); the LED lamps (31) correspond to the lenses (32) one by one;

the lens (32) comprises an incident surface, a free emergent curved surface and a total reflection surface;

the incident surface comprises a refraction cylindrical surface (321) and a refraction arc surface (322); the LED lamp (31) is arranged in the refraction cylindrical surface (321) and the refraction arc surface (322);

the free exit curved surface comprises a first free refractive curved surface (323) and a second free refractive curved surface (324); the upper edge of the total reflection surface is connected with the upper edge of the first free refraction curved surface (323) to form an outer convex edge of a lens (32), and the lower edge of the first free refraction curved surface (323) is connected with the edge of the second free refraction curved surface (324) to form a groove.

2. A LED lamp for reducing light pollution according to claim 1, wherein said LED lamp (31) and said lens (32) are each provided in plurality; each group of LED lamps (31) and the lens (32) are distributed in the mounting groove (2) in a matrix manner.

3. A LED lamp with reduced light pollution as claimed in claim 2, wherein each set of said LED lamp (31) and said lens (32) is soldered in said mounting groove (2) by means of an electric soldering iron.

4. A LED lamp with reduced light pollution as claimed in claim 3, wherein said lamp housing (1) is further provided with a power connection module (4); the power supply connection module (4) is arranged on one side of the mounting groove (2).

5. A LED lamp with reduced light pollution according to claim 4, characterized in that the LED lamp (31) is spirally mounted in the incident surface.

6. A LED lamp as claimed in claim 5, characterized in that the lens (32) is an asymmetric free-form optical curve lens.