CN205480588U - Wash pinup lens, have this and wash light emitting module of pinup lens and wash pinup - Google Patents

Abstract

The utility model discloses a wash the pinup lens, including lens main part and support the lens base of lens main part, the internal surface of light and the surface of emergent ray are sent including receiving from the light source to the lens main part, wherein the surface include be used for with light total reflection to the first surface of washing the wall, be used for with beam refraction to the second curved surface of washing the wall with be used for light total reflection to the third curved surface of washing the wall, the first surface with the second curved surface comprises around 180 degrees the Y rotation of axes continuous curve, is the third curved surface by continuous curve around the Y rotation of axes 180 the degree constitutes. The utility model aims at providing a wash pinup lens, have this and wash light emitting module of pinup lens and wash pinup, the combined action through three curved surface can reduce stray light, improves the light efficiency. The illumination uniformity distribution that whole lens need not deflect and just can realize the polarisation and wash the wall, the nearly lamp department that avoids washing wall is the sharp decay condition with lamp department far away.

Description

Wall lamp lens, the light emitting module with these wall lamp lens and wall lamp

Technical field

This utility model relates to a kind of wall lamp lens, have these wall lamp lens light emitting module and wall lamp.

Background technology

LED wall wash lamp is as the term suggests being exactly that the light of light fixture impinges upon and from top to bottom skims over uniformly just as cascade on metope Metope, but remote, the illuminating effect of high uniformity can be realized in actual applications in the case of small-power and be very difficult to do Arrive.This characteristics of luminescence mainly due to LED light source itself and the restriction of installation site, cause the illumination that wall lamp is actual Effect is that light decay is rapid, and the light spot illumination washing wall metope is uneven, and light efficiency is on the low side.

Utility model content

The purpose of this utility model is to provide a kind of wall lamp lens, have these wall lamp lens light emitting module and Xi Qiang Lamp, can reduce veiling glare by the common effect of three curved surfaces, improve light efficiency, and overall lens is made without deflection, it is simple to Install.

For solving the problems referred to above, this utility model embodiment provides a kind of wall lamp lens, including lens body and support The lens pedestal of described lens body, lens body includes receiving the inner surface emitted beam from light source and the appearance of emergent ray Face, its outer surface includes being incident upon for being all-trans by light washes the first surface of metope, is used for refracting light into and washes metope Second curved surface and be incident upon the 3rd curved surface washing metope for being all-trans by light, described first surface, described second curved surface and described 3rd curved surface is rotated around Y-axis by full curve and is constituted.

Optionally, described first surface is fully reflecting surface, and the profile of first surface can be limited by following integral equation: $r=ro*\exp \left({\∫}_{{\mathrm{\θ}}_{min}}^{\mathrm{\θ}}\left|tan\left(\frac{\mathrm{\π}-(\mathrm{\θ}-\mathrm{\γ})}{2}\right)\right|d\mathrm{\θ}\right),$ It is θ=θ at this ro_minTime lens starting point between initial point Distance, θ is the angle of incident ray and Y-axis, and γ is the angle of emergent ray and Y-axis.

Optionally, the profile of the second curved surface can limit by solving the following differential equation: It is θ=θ at this ro_minTime lens starting point between initial point Distance, θ is the angle of incident ray and Y-axis, and γ is the angle of emergent ray and Y-axis, and n is the refractive index of lens.

Optionally, the 3rd curved surface is total internal reflection surface, and the profile of the 3rd curved surface limits by solving the following differential equation: $r=ro*\exp \left({\∫}_{{\mathrm{\θ}}_{min}}^{\mathrm{\θ}}\left|tan\left(\frac{\mathrm{\π}-(\mathrm{\θ}+\mathrm{\γ})}{2}\right)\right|d\mathrm{\θ}\right),$ It is θ=θ at this ro_minTime lens starting point between initial point Distance, θ is the angle of incident ray and Y-axis, and γ is the angle of emergent ray and Y-axis.

Optionally, the cavity for accommodating light source is formed between described inner surface and described lens pedestal.

Optionally, first plane vertical with Y-axis it is provided with between described first surface and the second curved surface.

Optionally, it is provided with second plane vertical with Y-axis between described second curved surface and the 3rd curved surface.

Another object of the present utility model is by a kind of light emitting module with aforementioned type wall lamp lens, light emitting module For LED module, LED light source is i.e. installed in the cavity of wall lamp.Non-rotationally-symmetric wall is washed owing to light emitting module has this Lamp lens, therefore, it is possible to reduce veiling glare, improve light efficiency.Overall lens is made without deflection and can be achieved with polarisation, it is simple to peace Dress.

Another object of the present utility model by a kind of include array that multiple the above-mentioned type light emitting module forms wash wall Lamp.Owing to wall lamp has above-mentioned light emitting module, it is possible to reduce veiling glare, improve light efficiency, the therefore uniform-illumination of this wall lamp Distribution, uniformity reaches more than 0.75, light efficiency more than 0.65.

Accompanying drawing explanation

Fig. 1 is the sectional view of the light emitting module of this utility model embodiment；

Fig. 2 is the perspective view of the light emitting module of this utility model embodiment；

Fig. 3 is the Illumination Distribution figure of the light emitting module of this utility model embodiment；

Fig. 4 is the surface of intensity distribution of two sections of the light emitting module of this utility model embodiment；

Fig. 5 is the topology view of the wall lamp of this utility model embodiment；

Fig. 6 is the wall-washing lamp interior installation lens view of the present utility model of this utility model embodiment.

Accompanying drawing marks: A, first surface；B, the second curved surface；C, the 3rd curved surface；G, wall lamp lens；H, the first plane；J、 Inner surface；K, the second plane；L, light source；M, lens body；R, cavity；S, lens pedestal.

Detailed description of the invention

Below in conjunction with the accompanying drawings, by specific embodiment, the technical solution of the utility model is carried out clear, complete retouching State.

As it is shown in figure 1, a kind of wall lamp lens G, including lens body M and the lens pedestal S of support lens body M.Thoroughly Mirror main body M includes receiving the inner surface J emitted beam from light source L and the outer surface of emergent ray.Inner surface J and lens pedestal S Between formed for accommodating the cavity R of light source L.In figure, Y-axis is optical axis, outer surface include for first surface A, the first plane H, Second curved surface B, the second plane K and the 3rd curved surface C, first surface A and the second curved surface B are revolved turnback institute by full curve around Y-axis Constitute；Described 3rd curved surface C is rotated what-180 degree were constituted by full curve around Y-axis；First plane H be located at first surface A and Between second curved surface B and vertical with Y-axis；Second plane K is located between the second curved surface B and the 3rd curved surface C and vertical with Y-axis.

First surface A is fully reflecting surface, washes metope for being all-trans to be incident upon by light, it is to avoid the light intensity at low beam is excessive.The The profile of one curved surface A can be limited by following integral equation: $r=ro*\exp \left({\∫}_{{\mathrm{\θ}}_{min}}^{\mathrm{\θ}}\left|tan\left(\frac{\mathrm{\π}-(\mathrm{\θ}-\mathrm{\γ})}{2}\right)\right|d\mathrm{\θ}\right),$ ? This ro is θ=θ_minTime lens value, θ is the angle of incident ray and Y-axis, and γ is the angle of emergent ray and Y-axis.

Second curved surface B is used for refracting light into and washes metope, it is achieved the deflection of light, improve the light uniformity.Second curved surface B Profile can by solve the following differential equation limit: $r=ro*\exp \left({\∫}_{{\mathrm{\θ}}_{min}}^{\mathrm{\θ}}\left|tan\left(\frac{sin(\mathrm{\θ}-\mathrm{\γ})}{sin(\mathrm{\θ}-\mathrm{\γ})-n}\right)\right|d\mathrm{\θ}\right),$ At this Ro is θ=θ_minTime lens value, θ is the angle of incident ray and Y-axis, and γ is the angle of emergent ray and Y-axis, and n is lens Refractive index.

3rd curved surface C is total internal reflection surface, washes metope for being all-trans to be incident upon by light, it is achieved the deflection of light, raising light Imitate, improve the light uniformity.The profile of the 3rd curved surface C limits by solving the following differential equation: $r=ro*\exp \left({\∫}_{{\mathrm{\θ}}_{min}}^{\mathrm{\θ}}\left|tan\left(\frac{\mathrm{\π}-(\mathrm{\θ}+\mathrm{\γ})}{2}\right)\right|d\mathrm{\θ}\right),$ It is θ=θ at this ro_minTime lens value, θ is incident ray and Y The angle of axle, γ is the angle of emergent ray and Y-axis.

As in figure 2 it is shown, a kind of light emitting module with aforementioned type wall lamp lens G, light emitting module is LED module, i.e. LED light source L is installed in the cavity R of wall lamp.Owing to light emitting module has this non-rotationally-symmetric wall lamp lens G, because of This can reduce veiling glare, improves light efficiency.Overall lens is made without deflection and can be achieved with polarisation, it is simple to install.

As shown in Figs. 3-4, it is evenly distributed in the target area of the hot spot in the vertical direction of light emitting module, the uniformity Reach more than 0.7.

As shown in FIG. 5 and 6, a kind of wall lamp including array that multiple the above-mentioned type light emitting module forms.Owing to washing wall Light fixture has above-mentioned light emitting module, it is possible to reduce veiling glare, improves light efficiency, therefore the uniform-illumination distribution of this wall lamp, uniformity Reach more than 0.75, light efficiency more than 0.65.

Design of the present utility model is, realizes washing wall wall by the refraction of light near the light washing wall metope side Area Objects uniform-illumination is distributed, and obtains the second curved surface B, in the design process by calculating the profile differential equation of the second curved surface B Have found that the reason of total reflection, be to be difficult to overcome at low beam near washing the light of wall metope side separately through the refraction of light Peak value, in being introduced into first surface A, by occur total reflection light be converted into total internal reflection, it is achieved wash wall metope target shine Degree is uniformly distributed.Pass through the 3rd curved surface C away from the light washing metope side, reflex to wash metope by light, it is achieved wash wall metope Object illumination is uniformly distributed.Owing to first surface A, the second curved surface B, the design object of the 3rd curved surface C are all to meet design mesh Uniform-illumination distribution is realized, so lens entirety is accomplished that the uniform-illumination distribution washing metope in target area.By three The common effect of curved surface can reduce veiling glare, improves light efficiency.Overall lens is made without deflection and can be achieved with polarisation, it is simple to peace Dress, and wash the uniform-illumination distribution of metope, uniformity reaches more than 0.75, light efficiency more than 0.65.

Although this utility model is open as above with preferred embodiment, but it is not for limiting this utility model, appoints What those skilled in the art, without departing from spirit and scope of the present utility model, may be by method and the skill of the disclosure above Technical solutions of the utility model are made possible variation and amendment by art content, therefore, every without departing from this utility model technology The content of scheme, any simple modification above example made according to technical spirit of the present utility model, equivalent variations and Modify, belong to the protection domain of technical solutions of the utility model.

Claims (10)

1. wall lamp lens, it is characterised in that include lens body and support the lens pedestal of described lens body, lens Main body includes receiving the inner surface emitted beam from light source and the outer surface of emergent ray, and its outer surface includes for by light It is all-trans to be incident upon and washes the first surface of metope, for refracting light into the second curved surface washing metope and being incident upon for being all-trans by light Washing the 3rd curved surface of metope, described first surface, described second curved surface and described 3rd curved surface are rotated institute by full curve around Y-axis Constitute.

2. wall lamp lens as claimed in claim 1, its spy is, described first surface is fully reflecting surface, first surface Profile can be limited by following integral equation:This ro be θ= θ_minTime lens starting point to the distance between initial point, θ is the angle of incident ray and Y-axis, and γ is the folder of emergent ray and Y-axis Angle.

3. wall lamp lens as claimed in claim 1, its spy is, the profile of the second curved surface can be by solving following differential side Degree is fixed:It is θ=θ at this ro_minTime lens starting point to former Distance between point, θ is the angle of incident ray and Y-axis, and γ is the angle of emergent ray and Y-axis, and n is the refractive index of lens.

4. wall lamp lens as claimed in claim 1, it is characterised in that the 3rd curved surface is total internal reflection surface, the 3rd curved surface Profile limits by solving the following differential equation:It is θ at this ro =θ_minTime lens starting point to the distance between initial point, θ is the angle of incident ray and Y-axis, and γ is emergent ray and Y-axis Angle.

5. wall lamp lens as claimed in claim 1, it is characterised in that formed between described inner surface and described lens pedestal For accommodating the cavity of light source.

6. wall lamp lens as claimed in claim 1, it is characterised in that be provided with between described first surface and the second curved surface with The first plane that Y-axis is vertical.

7. wall lamp lens as claimed in claim 1, it is characterised in that be provided with between described second curved surface and the 3rd curved surface with The second plane that Y-axis is vertical.

8. a light emitting module, has according to the wall lamp lens according to any one of claim 1-7.

9. light emitting module as claimed in claim 8, it is characterised in that described light emitting module is LED module.

10. a wall lamp, including multiple arrays being made up of the light emitting module described in claim 8 or 9.