CN208058751U

CN208058751U - One word hot spot lens of one kind and light emitting module

Info

Publication number: CN208058751U
Application number: CN201821207071.9U
Authority: CN
Inventors: 易博
Original assignee: Chengdu Senshi Optical Technology Co Ltd
Current assignee: Chengdu Senshi Optical Technology Co Ltd
Priority date: 2018-07-27
Filing date: 2018-07-27
Publication date: 2018-11-06
Anticipated expiration: 2028-07-27

Abstract

The utility model discloses one word hot spot lens of one kind and light emitting module, including lens body；The bottom surface of the lens body is equipped with recess, and the top surface of recess is the first incidence surface, and the side of recess is the second incidence surface, and the second incidence surface is the madial wall of lens body；The light-emitting surface of the lens body is located at the surface of recess；The madial wall and lateral wall of the lens body are plane；It is equipped with Sai lines on the madial wall and lateral wall of the lens body；First incidence surface and light-emitting surface are the free form surface to raise up, and the first incidence surface and light-emitting surface are satisfied by the following conditions：Wherein,For the normal vector of certain point on the free form surface；N is the refractive index of lens body material；For incident ray,For emergent ray；The emergent ray of light-emitting surface is preset known quantity, and forms the hot spot of linear type shape.Technical solution provided by the utility model, can show " one " word hot spot effect of standard, and efficiently avoid the generation of veiling glare.

Description

One word hot spot lens of one kind and light emitting module

Technical field

The utility model belongs to Optical devices technical field, more particularly to a kind of word hot spot lens and light emitting module.

Background technology

With the upgrading that light scene is applied, requirement of the Lighting Design scheme to lamp distribution is higher and higher, wherein " one " The application of word hot spot lamps and lanterns is also more and more, but the requirement of designer is all not achieved in most of optical lens on the market at present.

Existing line-styled hot spot lens mainly have following three kinds：The first in existing TIR as shown in Figure 1, collimate Stripe design is done on the surface of lens, this scheme is done not small in narrow angle direction angle, and the hot spot that shows is practical close to elliptical light Spot；Second as shown in Fig. 2, taking section by existing TIR collimation lenses and carrying out curvilinear stretch, using a lamp bead with one The scheme of lens makes hot spot that " one " word effect be presented." one " word spot center that this scheme shows is small, both ends are big, can not obtain To " one " word hot spot of standard；The third using existing shelled peanut lens as shown in figure 3, be directly presented " one " word hot spot effect Fruit.But this scheme veiling glare is more, and dazzle is strong, bad to cause to wash wall effect.

Utility model content

The utility model is intended to provide one word hot spot lens of one kind and light emitting module, can show " one " word light of standard Spot effect, and efficiently avoid the generation of veiling glare.

In order to achieve the above objectives, the technical solution adopted in the utility model is as follows：

A kind of word hot spot lens disclosed by the utility model, including：Lens body；The bottom surface of the lens body is equipped with Recess；The top surface of the recess is the first incidence surface, and the side of recess is the second incidence surface, and second incidence surface is described The madial wall of mirror ontology；The light-emitting surface of the lens body is located at the surface of the recess；Second incidence surface and lens The lateral wall of ontology is plane；It is equipped with Sai lines on second incidence surface and the lateral wall of lens body；Described first enters Smooth surface and the light-emitting surface are the free form surface to raise up, and the first incidence surface and light-emitting surface are satisfied by the following conditions：

Wherein,For the normal vector of certain point on the free form surface；N is the refractive index of the lens body material； For incident ray,For emergent ray；The emergent ray of the light-emitting surface is preset known quantity, the emergent ray of light-emitting surface Form the hot spot of linear type shape.

Preferably, the bottom surface of the lens body is rectangle.

Preferably, the plane perpendicular of second incidence surface and lens body；The lateral wall and lens of the lens body The plane perpendicular of ontology.

Preferably, second incidence surface and the lateral wall of lens body are attached most importance to Sai lines face.

A kind of light emitting module is also disclosed in the utility model, including：A word hot spot described in light source and above-mentioned any one is saturating Mirror；The light source is set to the bottom surface recess of the word hot spot lens.

Preferably, the light source is LED light.

Word hot spot lens and light emitting module provided by the utility model, on the madial wall and lateral wall of lens body Sai lines are set so that the side wall light transmittance of lens body is very low, and most of light all refracts to light extraction by the first incidence surface Face, then got on illumination target face by light-emitting surface.Since the first incidence surface and light-emitting surface meet certain qualified relation so that go out The shape of smooth surface can change with the change of the first incidence surface, but the light projected from light-emitting surface can always be confined preset In the range of linear type shaped laser spot.Therefore, in the case where the shape of the first incidence surface and light-emitting surface meets qualified relation, thoroughly The final emergent ray of mirror ontology can form " one " word hot spot, and the side wall of lens body is opaque.As it can be seen that the utility model carries The technical solution of confession can show " one " word hot spot effect of standard compared with prior art, and efficiently avoid veiling glare Generation.

Description of the drawings

Fig. 1 is the structural schematic diagram of the first " one " word hot spot lens in the prior art；

Fig. 2 is the structural schematic diagram of second of " one " word hot spot lens in the prior art；

Fig. 3 is the structural schematic diagram of the third " one " word hot spot lens in the prior art；

Fig. 4 is the structural schematic diagram one of " one " word hot spot lens in the utility model embodiment；

Fig. 5 is the structural schematic diagram two of " one " word hot spot lens in the utility model embodiment；

Fig. 6 be the utility model embodiment in " one " word hot spot lens X-direction sectional view；

Fig. 7 be the utility model embodiment in " one " word hot spot lens Y direction sectional view；

Fig. 8 is the illuminating effect figure of the utility model embodiment；

In figure, 1 is recess, and 11 be the first incidence surface, and 12 be the second incidence surface, and 2 be light-emitting surface, and 3 be the outer of lens body Side wall.

Specific implementation mode

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality It is further elaborated with novel.

The structure of " one " word hot spot lens is shown in the utility model embodiment in Fig. 4 and Fig. 5, including：Lens body； The bottom surface of the lens body is equipped with recess 1；The top surface of the recess 1 is the first incidence surface 11, and 1 side of being recessed is second to enter Smooth surface 12, second incidence surface 12 are the madial wall of the lens body；The light-emitting surface 2 of the lens body is located at described recessed Fall into 1 surface；Second incidence surface 12 and the lateral wall 3 of lens body are plane；Second incidence surface 12 and thoroughly It is equipped with Sai lines on the lateral wall 3 of mirror ontology；First incidence surface 11 and the light-emitting surface 2 are the freely song to raise up Face, and the first incidence surface 11 and light-emitting surface 2 are satisfied by the following conditions：

Wherein,For the normal vector of certain point on the free form surface；N is the refractive index of the lens body material；For Incident ray,For emergent ray；The emergent ray of the light-emitting surface 2 is preset known quantity, the emergent ray of light-emitting surface 2 Form the hot spot of linear type shape.

In the present embodiment, the bottom surface of the lens body is rectangle；The bottom surface of second incidence surface 12 and lens body Vertically；The plane perpendicular of the lateral wall 3 and lens body of the lens body.In order to make the light transmittance of lens body side wall more Low, the lateral wall 3 of second incidence surface 12 and lens body is attached most importance to Sai lines face.In the present embodiment, also it can enter light by second Smooth surface is done in face (i.e. Sai lines face A), and the lateral wall (i.e. Sai lines face B) of lens body does weight Sai lines face；Alternatively, by the second incidence surface (i.e. Sai lines face A) does weight Sai lines face, and the lateral wall (i.e. Sai lines face B) of lens body does smooth surface.

A kind of light emitting module is also disclosed in the utility model, including：A word hot spot described in light source and above-mentioned any one is saturating Mirror；The light source is set at the bottom surface recess 1 of the word hot spot lens；The light source is LED light.

The light path principle of light emitting module is as follows in the utility model：

The light that LED is sent out is divided into two parts：A part of light passes through the second incidence surface, i.e. Sai lines face A, some light Energy accounting 5%~20% or so.Due to being provided with Sai lines on the face, light transmittance is very low, therefore only small part light energy It is transmitted to the lateral wall of lens body, i.e. Sai lines face B, the face light transmittance is equally very low, and permeable light is less, therefore energy Enough it is effectively prevented from veiling glare phenomenon.Another part light refracts to light-emitting surface through the first incidence surface, then refracts to photograph by light-emitting surface Bright target face makes the emergent ray of light-emitting surface in illumination target due to meeting predetermined condition between the first incidence surface and light-emitting surface " one " word hot spot is showed on face.The some light energy accounting 80%~95% or so, and the first incidence surface is with certain The free form surface of light-focusing function can avoid light refraction to above-mentioned Sai lines face B.

Specifically, the first incidence surface calculates two parts light critical maximum deflection angle according to the law of refraction, partially according to this Dog-ear inversely calculates free form surface；Light is refracted to light-emitting surface emergent ray by the first incidence surface, wherein light-emitting surface according to First incidence surface free form surface inversely calculates the cloud point in the face, and lens body is completed in 3D softwares.

Certainly, the utility model can also have other various embodiments, without departing substantially from the spirit of the present invention and its essence In the case of, those skilled in the art can make various corresponding change and deformations, but these phases according to the utility model The change and distortion answered should all belong to the protection domain of the utility model the attached claims.

Claims

1. a kind of word hot spot lens, which is characterized in that including：Lens body；The bottom surface of the lens body is equipped with recess (1)；It is described recess (1) top surface be the first incidence surface (11), recess (1) side be the second incidence surface (12), described second Incidence surface (12) is the madial wall of the lens body；The light-emitting surface (2) of the lens body be located at it is described recess (1) just on Side；The lateral wall (3) of second incidence surface (12) and lens body is plane；Second incidence surface (12) and lens sheet It is equipped with Sai lines on the lateral wall (3) of body；First incidence surface (11) and the light-emitting surface (2) are the freedom to raise up Curved surface, and the first incidence surface (11) and light-emitting surface (2) are satisfied by the following conditions：

Wherein,For the normal vector of certain point on the free form surface；N is the refractive index of the lens body material；For incidence Light,For emergent ray；The emergent ray of the light-emitting surface (2) is preset known quantity, the emergent ray of light-emitting surface (2) Form the hot spot of linear type shape.

2. word hot spot lens according to claim 1, which is characterized in that the bottom surface of the lens body is rectangle.

3. word hot spot lens according to claim 2, which is characterized in that second incidence surface (12) and lens body Plane perpendicular；The plane perpendicular of lateral wall (3) and lens body of the lens body.

4. word hot spot lens according to claim 1, which is characterized in that second incidence surface (12) and lens body Lateral wall (3) attach most importance to Sai lines face.

5. a kind of light emitting module, which is characterized in that including：A word hot spot described in light source and Claims 1-4 any one is saturating Mirror；The light source is set at the bottom surface recess (1) of the word hot spot lens.

6. light emitting module according to claim 5, which is characterized in that the light source is LED light.