Wall lamp lens, light emitting module and wall lamp
Technical field
The present invention relates to optical technical field, in particular to a kind of wall lamp lens, light emitting module and wall lamp.
Background technique
Wall lamp is actually that the light of lamps and lanterns sending uniformly skims over metope, forms light on metope as water flow
Cascade.Wall lamp is primarily used to do building decoration illumination and is used, and can also be used to the profile for sketching the contours heavy construction, using wide
It is general.
The light mode of delivery of traditional wall lamp are as follows: first collimate the light that light source issues, then by inclined
The method of folding attaches to light on metope.This mode light efficiency utilization rate is low, is difficult to realize irradiation height and light higher
Spot illuminance uniformity.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of wall lamp lens, with the wall lamp lens
Optical module and wall lamp are divided into two parts close to and away from metope by the light for issuing light source, with different sides
Formula by light refraction or be all-trans be incident upon it is default wash metope, greatly reduce light losing, brought while improving light efficiency and wash wall
Raising in height and light spot illumination uniformity.
Wall lamp lens provided by the invention, including lens body and with the lens body be integrally formed be used to support
The lens pedestal of the lens body;
The lens body includes the inner surface for receiving light, and the outside of the inner surface is arranged in for going out
Penetrate the outer surface of light;
One is formed between the inner surface and the lens pedestal for accommodating the cavity of light source, is located in the cavity
Light source issue light projected through the inner surface;
The outer surface includes the first surface for refracted light and the second curved surface for reflection light, and described first
Curved surface and the second curved surface are arranged on the lens pedestal around the inner surface, the light a part being emitted through the inner surface
By the first surface refract to it is preset wash metope, another part default washes wall to described by second curved face total reflection
Face.
As an embodiment, the top of second curved surface is equipped with a plane, the plane connection described first
Curved surface and second curved surface;
The light being totally reflected in second curved surface is projected from the plane, is reached described preset and is washed metope.
As an embodiment, using the light source installation site as coordinate origin, reference axis, the lens are established
Plane where pedestal is X-axis and Z axis, crosses coordinate origin and perpendicular to the straight line of the X-axis and Z axis as Y-axis, first song
Face rotates 180 degree around Y-axis by full curve and constitutes, and second curved surface rotates around Y-axis by full curve-and 180 degree constitutes;
The first surface meets the following differential equation:
Second curved surface meets the following differential equation:
Distance of the metope apart from lamps and lanterns is washed in d expression, and h indicates that light reaches the height for washing metope, and n indicates the refraction of lens
Rate, θ refer to the angle of light and central ray, t1And t2It is excessive symbol, no physical meaning.
As an embodiment, the inner surface is using light source center as the hemisphere face of the centre of sphere or half ellipsoidal surface.
As an embodiment, the mounting hole of installation light source is provided on the lens pedestal, the mounting hole
The edge at edge and the inner surface is tangent.
As an embodiment, the lens pedestal includes mounting plate and the boss on the mounting plate;
The boss is in hollow cylinder structure;
The mounting plate, is in hollow cylinder structure, and the mounting hole is arranged on the mounting plate.
As an embodiment, it is fixed by way of insertion between the lens pedestal and light source.
As an embodiment, pass through the insertion of glued or stabilizer blade between the lens pedestal and outer mounting structure
Mode is fixed.
Correspondingly, the present invention also provides a kind of light emitting module, including light source and wall lamp described in any of the above embodiments it is saturating
Mirror;
The light source is arranged on the lens pedestal, and is located at the cavity inside, and the light that the light source issues is through institute
After the inner surface reception for stating lens body, metope is washed to default by the appearance surface launching of the lens body.
Correspondingly, the present invention also provides a kind of wall lamps, including the array being made of multiple light emitting modules.
The beneficial effect of the present invention compared with the prior art is:
Wall lamp lens provided by the invention, light emitting module and wall lamp with the wall lamp lens, pass through two songs
The collective effect in face can be reduced light losing, improve light efficiency, while traditional wall lamp lens being overcome to wash wall height and uniform-illumination
Limitation in terms of property.And lens body and lens pedestal are whole integrated, do not need rotate to realize light
Deflection, stable structure are easy to use.
Detailed description of the invention
Fig. 1 is a structural schematic diagram of the wall lamp lens that the embodiment of the present invention one provides;
Fig. 2 is the top view of wall lamp lens shown in FIG. 1;
Fig. 3 is a structural schematic diagram of wall lamp lens provided by Embodiment 2 of the present invention;
Fig. 4 is the another structural schematic diagram of wall lamp lens shown in Fig. 3;
Fig. 5 is the Illumination Distribution figure for the light emitting module that the embodiment of the present invention three provides;
Fig. 6 is the surface of intensity distribution of the horizontal and vertical section for the light emitting module that the embodiment of the present invention three provides;
Fig. 7 is the mounting structure schematic diagram for the wall lamp that the embodiment of the present invention four provides;
Fig. 8 is the enlarged diagram of Fig. 7.
Specific embodiment
Below in conjunction with attached drawing, the technical characteristic and advantage above-mentioned and other to the present invention are clearly and completely described,
Obviously, described embodiment is only section Example of the invention, rather than whole embodiments.
Please refer to Fig. 1 and Fig. 2, the wall lamp lens that the embodiment of the present invention one provides, including lens body and and lens
Main body is integrally formed and supports the lens pedestal of lens body.Lens body includes (not showing for receiving the inner surface of light
Out), and be arranged in inner surface outside be used for emergent ray outer surface.
The cavity for being used to accommodate light source is formed between inner surface and lens pedestal, what the light source in cavity issued
Light is projected through inner surface.Inner surface can be used to be realized by the hemisphere face of the centre of sphere or half ellipsoidal surface of light source center, this curved surface
Itself there is good optical property, the light that light source issues, can be by light through too big variation will not occur after inner surface
The loss of energy is reduced to minimum.On the other hand, can preferably be matched with outer surface using hemisphere face or half ellipsoidal surface as inner surface
It closes, adjusts light distribution, promote uniformity of illuminance.
Further, due to being difficult to overcome at low beam separately through the refraction of light close to the light for washing metope side
The accumulation of low color temperature light is based on this, and inner surface of the invention uses half ellipsoidal surface structure, the low color temperature that can will be accumulated
Light, which scatters, is distributed in target face, further realizes and washes metope object illumination and be uniformly distributed.
Outer surface includes the first surface 100 for refracted light and the second curved surface 200 for reflection light, and first is bent
Face 100 and the second curved surface 200 are arranged on lens pedestal around inner surface, and light a part through inner surface outgoing is by the first song
Face 100 refract to it is preset wash metope, another part, which is all-trans to be incident upon by the second curved surface 200, default washes metope.
As illustrated in fig. 1 and 2, first surface 100 and the second curved surface 200 are located at the two sides of inner surface, and first surface 100 is folding
Curved surface is penetrated, the second curved surface 200 is inner total reflection curved surface.In this way, when work, it only need to be by 100 side court of first surface
To metope is washed, it can be reflected from the light towards 100 side of first surface that inner surface is emitted in this way, wash wall to be irradiated to
On face;The light of the other side, that is, the light towards 200 side of the second curved surface being emitted from inner surface can be in the second curved surface
200 inner surface is totally reflected, and is washed on metope to be irradiated to.Wherein, there is suitable one after the total reflection of the second curved surface 200
Dividing is to be emitted from the top of the second curved surface 200, but the distribution of light still can be covered with refraction part split-phase, and superposition forms uniform
Hot spot.
The wall lamp lens that embodiment one provides, by by inner surface go out the light that sets be divided into close to and away from the two of metope
Part, in different ways by light refraction or be all-trans be incident upon it is default wash metope, greatly reduce light losing, improve light efficiency
While bring the raising washed in wall height and light spot illumination uniformity.And lens body and lens pedestal are whole integrated,
It does not need rotate the deflection that can realize light, stable structure is easy to use.
Lens pedestal is mainly used for supporting lens body, installation light source and dock with outer mounting structure.Lens pedestal
It can be round, rectangular or arbitrary structures, be provided with the mounting hole of installation light source, the size of mounting hole should be with light source
Size matches, and the edge of edge and inner surface is tangent.When installation, light source is embedded in the cavity that lens pedestal and inner surface are formed
In, and lens pedestal is then fixed between outer mounting structure by glued or stabilizer blade embedded mode.
As shown in Figures 1 to 4, lens pedestal provided in an embodiment of the present invention include mounting plate 400 and be located at mounting plate
Boss 300 on 400, boss 300 are in hollow cylinder structure, and mounting plate 400 is in hollow cylinder structure, and mounting hole setting exists
On mounting plate 400.This structure is simple, installation is facilitated to fix, it is most important that stable structure.
For convenient for docking with other external structures, other mounting assemblies can also be arranged in the lower section of mounting plate 400, such as prop up
Foot, lock etc..
Referring to Fig. 3 and Fig. 4, wall lamp lens provided by Embodiment 2 of the present invention, on the basis of the above embodiment 1 also
Including a plane 500, plane 500 is arranged in the top of the second curved surface 200 and connects first surface 100 and the second curved surface 200,
The light being totally reflected in second curved surface 200 is projected from plane 500, is reached to preset and is washed metope.
The present embodiment between the second curved surface 200 and first surface 100 by being arranged plane 500, so that in the second curved surface
The light being totally reflected in 200 is projected from plane 500, is reached to preset and is washed metope, overall structure is more stable, and anti-interference is more
It is high.
Further, as an embodiment, 100 He of first surface in the embodiment of the present invention one and embodiment two
Second curved surface 200 can be accomplished by the following way: using light source installation site as coordinate origin, establish reference axis, lens base
Plane where seat is X-axis and Z axis, crosses coordinate origin and perpendicular to the straight line of X-axis and Z axis as Y-axis, first surface is by continuous bent
Line rotates 180 degree around Y-axis and constitutes, and the second curved surface rotates around Y-axis by full curve-and 180 degree constitutes;
The first surface meets the following differential equation:
Second curved surface meets the following differential equation:
Distance of the metope apart from lamps and lanterns is washed in d expression, and h indicates that light reaches the height for washing metope, and n indicates the refraction of lens
Rate, θ refer to the angle of light and central ray, t1And t2It is excessive symbol, no physical meaning.It, will when being solved using above-mentioned formula
t1And t2It brings first formula into, curved-surface structure can be obtained, obtained curved surface is combined into wall lamp provided in an embodiment of the present invention
The deflection of light may be implemented in lens arrangement, improves uniformity of illuminance.
Based on the same inventive concept, the embodiment of the present invention three also provides a kind of light emitting module, including light source and the present invention
The wall lamp lens of offer.Light source is arranged on lens pedestal, and is located at cavity inside, and the light that light source issues is through lens body
After inner surface receives, metope is washed to default by the appearance surface launching of lens body.Light source generally uses the point light sources such as LED module.
The wall lamp lens arrangement that the light emitting module provides through the invention does not need rotate to realize light
Deflection, stable structure is easy to use, and the height of emergent light and uniformity aspect are obviously improved.Such as Fig. 5 and Fig. 6
Shown, uniformity of illuminance shown in fig. 5 is up to 0.75 or more.The higher line that compares in Fig. 6 represents the horizontal profile of light emitting module
Light distribution, the lower line that compares represents the light distribution of the sectional elevation of light emitting module, whole light efficiency up to 0.65 with
On.
Based on the same inventive concept, referring to figs. 7 and 8, the embodiment of the present invention four also provides a kind of wall lamp, including by more
The array of a light emitting module composition.Since the wall lamp is made of the array that above-mentioned light emitting module forms, stray light can be reduced,
Improve light efficiency.The uniform-illumination of the wall lamp is distributed, and uniformity reaches 0.75 or more, 0.65 or more light efficiency.
The structure of first surface 100, the second curved surface 200 and inner surface in the embodiment of the present invention can meet design
Uniform-illumination distribution is realized in mesh target area, so wall lamp lens provided by the invention, light emitting module and wall lamp are whole
Body is accomplished that the uniform-illumination distribution for washing metope, and realizes higher irradiation height.Pass through the common work of three curved surfaces
With can be reduced light losing, light efficiency is improved, and does not need deflect to can be achieved with polarisation, is easily installed, uniform-illumination
Property reaches 0.75 or more, 0.65 or more light efficiency.
Particular embodiments described above has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that the above is only a specific embodiment of the present invention, the protection being not intended to limit the present invention
Range.It particularly points out, to those skilled in the art, all within the spirits and principles of the present invention, that is done any repairs
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.