CN201547672U

CN201547672U - Optical structure for lampshade of yard lamp

Info

Publication number: CN201547672U
Application number: CN2009201835671U
Authority: CN
Inventors: 林华乡
Original assignee: Intex Industries Xiamen Co Ltd
Current assignee: Intex Industries Xiamen Co Ltd
Priority date: 2009-10-26
Filing date: 2009-10-26
Publication date: 2010-08-11
Anticipated expiration: 2019-10-26

Abstract

The utility model provides an optical structure for a lampshade of a yard lamp, which comprises a large reflector, a small reflector and an LED light-emitting element. The small reflector is arranged at the outer part of the LED light-emitting element, so as to concentrate light to the large reflector arranged above the LED light-emitting element. A reflecting surface of the large reflector is a composite curved surface formed by a plurality of arc surfaces with different curvature. With the central point as the axial direction, the composite curved surface is divided into a first annular reflecting zone, a second annular reflecting zone and a third annular reflecting zone. The light emitted by the LED light-emitting element is uniformly distributed after being reflected by the three reflecting zones of the large reflector, and forms a bright light spot with the diameter of 2m under the yard lamp, thereby increasing the utilizing rate of a light source and reducing light radiating losses; in addition, the illumination is uniform.

Description

The optical texture of garden lamp lampshade

Technical field

The utility model relates to a kind of garden lamp, specifically is relevant with the optical texture of garden lamp lampshade.

Background technology

Be located at the garden lamp or the Green ground lamp in places such as garden, meadow or sub-district, effect with night illumination and Landscape Lamp, generally be light source to be set on the top of lamp stand, and on light source, be covered with the light-permeable lampshade, the light of light source outwards and is all around dispersed by the transmittance section of this lampshade, but some light that makes progress of the garden lamp of this class formation can not get effective utilization, add light and be to around disperse ejaculation, can't the cover road surface, and can cause and dazzle light, result of use is not good; After further improving, in the top of light source one reflector is set, the light that light source is upwards launched can be reflexed to the road surface by reflector, form hot spot, but exist the reflective plane of reflector part light vertical reflection light echo source can be absorbed, cause the waste of light source, and uneven illumination is even, can produce the dark space.

The utility model content

For this reason, the purpose of this utility model is to provide a kind of optical texture of garden lamp lampshade, and the irradiated area and the irradiation that can increase garden lamp are even, also can improve illuminance simultaneously.

For this reason, the technical solution adopted in the utility model is:

A kind of optical texture of garden lamp lampshade, include large reflective mirror, small reflector, the LED light-emitting component, this LED light-emitting component outer setting small reflector, with the large reflective mirror of concentrating light to be provided with to LED light-emitting component top, this large reflective mirror is a disc-shaped structure, its diameter is LED light-emitting component 2.5～3.5 times to the large reflective mirror vertical range, the compound curved surface that this large reflective mirror reflective surface is made up of the cambered surface of a plurality of different curvature, this compound curved surface is axially outer first echo area that is divided into annular with the central point, second echo area and the 3rd echo area, each echo area is in order to the light of the variant incident angle of correspondence reflection LED light-emitting component, and small reflector, large reflective mirror is coaxial with the LED center.

The cambered surface curvature of first echo area of this pericenter is maximum, is 0 ° with corresponding LED light-emitting component vertical direction incident angle start angle, and termination point is the light in 20～30 ° of scopes, so that this part light is scattered to hot spot farthest, ground.

This second echo area and the 3rd echo area mainly are that corresponding LED light-emitting component vertical direction incident angle start angle is 20～30 °, and termination point is the light in 70～75 ° of scopes, reflects it to main surround under the lamp.

Corresponding LED light-emitting component vertical direction incident angle start angle is 70～75 °, termination point is the light in 90 ° of scopes, wherein part light reflexes to main surround under the lamp through the 3rd echo area, part light then reflexes to second echo area of large reflective mirror by small reflector in addition, by second echo area light is reflexed to main surround under the lamp again.

Adopt such scheme, because the special optical texture design of large reflective mirror in the utility model, cooperate small reflector, the light that the LED light-emitting component is sent passes through small reflector optically focused to large reflective mirror, first echo area through this large reflective mirror compound curved surface, evenly distribute after the reflection of second echo area and the 3rd echo area, the formation diameter is 2 meters a bright hot spot under lamp, the utilization rate of light source is improved, reduce the loss of light scattering, increase the illumination in the area to be illuminated territory, and illumination is even, and irradiated area is big, has promoted the illuminating effect of garden lamp greatly.

Description of drawings

Fig. 1 is a perspective exploded view of the present utility model;

Fig. 2 is the front view of the utility model large reflective mirror;

Fig. 3 analyses and observe and curvature distribution figure for the utility model large reflective mirror;

Fig. 4,5,6 is the distribution of light schematic diagram of the utility model large reflective mirror reflex time.

The specific embodiment

The optical texture of garden lamp lampshade of the present utility model can be applicable to a kind of garden lamp, this garden lamp is made up of lamp stand 1, LED light-emitting component 2 and solar collecting device 3, this LED light-emitting component 2 is located at the top of lamp stand 1 and is electrically connected supply unit in the lamp stand 1, by solar collecting device 3 solar energy of gathering is converted to electric energy to provide the LED light-emitting component 2 required power supplys, this repeats no more for commonly using structure.

As shown in Figure 1, key of the present utility model is, a small reflector 4 is set in the periphery of this LED light-emitting component 2, concentrates upwards emission in order to the light that LED light-emitting component 2 is sent, and reduces scattering of light, has the effect of optically focused; One large reflective mirror 5 is locked on the saturating empty lampshade 11 of lamp stand 1, and is positioned at the top of LED light-emitting component 2, is disc-shaped structure, and the diameter of this large reflective mirror 5 is 2.5～3.5 times to large reflective mirror 5 vertical ranges of LED light-emitting component 2.Shown in Fig. 2,3, special feature of the present utility model is: the whole outer surface of this large reflective mirror 5 presents by outer rim to the center shape of indent gradually, and the inner surface of this large reflective mirror 5 be axle with the central point by the cambered surface of a plurality of different curvature form a compound curved surface 51 as reflective surface with reflection ray.Following embodiment is that cambered surface by three tool different curvature consists of example and explains with compound curved surface 51.

The reflex of these large reflective mirror 5 compound curved surfaces 51 is to be three echo areas that the center outwards forms ring-type with LED light-emitting component 2, i.e. first echo area 52, second echo area 53 and the 3rd echo area 54, below three echo areas are specified respectively, cooperate Fig. 4, this first echo area 52 mainly is that corresponding LED light-emitting component 2 vertical direction incident angle start angles are 0 °, termination point is the light in 20～30 ° of scopes, the cambered surface curvature maximum of first echo area 52 in the utility model, in order to wide-angle this part light is scattered to the farthest as far as possible, enlarge illumination range, can avoid adopting the planar design meeting that this part light vertical reflection light echo source is absorbed in the lampshade, cause the waste of light source as commonly using;

Cooperate Fig. 5, this second echo area 53 and the 3rd echo area 54 mainly are that corresponding LED light-emitting component 2 vertical direction incident angle start angles are 20～30 °, termination point is the light in 70～75 ° of scopes, this part is the main light of LED light-emitting component 2, it can be subdivided into two parts again, its incident angle of first is 20～45 ° a scope, light in this scope can be reflexed to main surround by second echo area 53, and the second portion incident angle is the scope of 45～70 ° of degree, it is oppositely contracted this part light to low-angle by wide-angle by the 3rd echo area 54, make itself and first echo area 52, the reflection ray stack of second echo area 53 is to increase the illumination brightness of main surround;

In addition, corresponding LED light-emitting component 2 vertical direction incident angle start angles are 70～75 °, termination point is the light in 90 ° of scopes, as shown in Figure 6, light part in this scope reflexes to the lamp lower area through the periphery of the 3rd echo area 54, another part light then reflexes to second echo area 53 of large reflective mirror 5 by small reflector 4, by second echo area 53 light being reflexed under the lamp main surround again increases illuminance with stack, and can not cause because of the light of wide-angle and dazzle light.

As seen, the special optical structural design of large reflective mirror 5 reflective surfaces in the utility model, the optically focused and the reflex that cooperate small reflector 4, can make light that LED light-emitting component 2 sent three echo areas via large reflective mirror 5, i.e. first echo area 52, can evenly distribute after the reflection of second echo area 53 and the 3rd echo area 54, the formation diameter is 2 meters a bright hot spot under lamp, it is the interior preferable field of illuminations of 100 °～150 ° scopes that a light angle can be provided, the utilization rate of light source is improved, reduce the loss of light scattering, increase the illumination in the area to be illuminated territory, and illumination is even, irradiated area is big, has promoted the illuminating effect of garden lamp greatly.

Claims

1. the optical texture of a garden lamp lampshade, include large reflective mirror, small reflector, the LED light-emitting component, it is characterized in that: this this small reflector of LED light-emitting component outer setting, with the large reflective mirror of concentrating light to be provided with to LED light-emitting component top, this large reflective mirror is a disc-shaped structure, its diameter is LED light-emitting component 2.5～3.5 times to the large reflective mirror vertical range, and the compound curved surface formed by the cambered surface of a plurality of different curvature of this large reflective mirror reflective surface, this compound curved surface is axially outer first echo area that is divided into annular with the central point, second echo area and the 3rd echo area, each echo area is in order to the light of the variant incident angle of correspondence reflection LED light-emitting component, and small reflector, large reflective mirror is coaxial with the LED center.

2. the optical texture of garden lamp lampshade as claimed in claim 1, it is characterized in that: the cambered surface curvature of first echo area of this pericenter is for maximum, with corresponding LED light-emitting component vertical direction incident angle start angle is 0 °, termination point is the light in 20～30 ° of scopes, so that this part light is scattered to hot spot farthest, ground.

3. the optical texture of garden lamp lampshade as claimed in claim 1, it is characterized in that: this second echo area and the 3rd echo area mainly are that corresponding LED light-emitting component vertical direction incident angle start angle is 20～30 °, termination point is the light in 70～75 ° of scopes, reflects it to main surround under the lamp.

4. the optical texture of garden lamp lampshade as claimed in claim 1, it is characterized in that: corresponding LED light-emitting component vertical direction incident angle start angle is 70～75 °, termination point is the light in 90 ° of scopes, wherein part light reflexes to main surround under the lamp through the 3rd echo area, part light then reflexes to second echo area of large reflective mirror by small reflector in addition, by second echo area light is reflexed to main surround under the lamp again.