CN205824922U

CN205824922U - Projecting Lamp lens, the light emitting module with these Projecting Lamp lens and Projecting Lamp

Info

Publication number: CN205824922U
Application number: CN201620616437.2U
Authority: CN
Inventors: 张航; 罗晓伟; 张勇; 仇旻; 李强; 姜欢; 陈星星
Original assignee: HANGZHOU GUANGZHUI TECHNOLOGY Co Ltd
Current assignee: Zhejiang guangcone Technology Co., Ltd
Priority date: 2016-06-20
Filing date: 2016-06-20
Publication date: 2016-12-21
Anticipated expiration: 2026-06-20

Abstract

The open a kind of Projecting Lamp lens of this utility model, including lens body, lens body includes receiving the inner surface emitted beam from light source and the outer surface of emergent ray, its outer surface includes for the first surface by realizing square illumination region, second curved surface, described second curved surface connects described first surface, described first surface is spliced by the optical curve in some angularly cross sections, described first surface is spliced by the optical curve in some angularly cross sections, described cross section realizes the energy allocation criterion of uniform-illumination using hot spot boundary point to the distance of spot center point as each cross section.This utility model provides a kind of Projecting Lamp lens, the light emitting module with these Projecting Lamp lens and Projecting Lamp, is designed to generate efficiently lens curved surface by secondary light-distribution, under the requirement meeting square focus spot bounding figure, it is achieved uniformity of illuminance more than 0.85.

Description

Projecting Lamp lens, the light emitting module with these Projecting Lamp lens and Projecting Lamp

Technical field

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

Background technology

Projecting Lamp is the light fixture specifying the projecting environment of illumination on face to be illuminated, also known as spotlight.Light projector shines out of doors In bright, especially in cast lighting, it is achieved the square focus spot always puzzlement relevant design personnel that the uniformity is high ask greatly Topic.Simultaneously as limited by the factor such as appearance design of conventional lamp, conventional lamp is difficult to make satisfactory joining Light.

Utility model content

This utility model provides a kind of Projecting Lamp lens, the light emitting module with these Projecting Lamp lens and Projecting Lamp, purpose It is to realize high uniform square hot spot.

For solving the problems referred to above, this utility model embodiment provides a kind of Projecting Lamp lens, including lens body, lens master 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 realization side Shape the illumination first surface in region, the second curved surface, described second curved surface connects described first surface, and described first surface is by some Angularly the optical curve in cross section is spliced, described cross section using hot spot boundary point to the distance of spot center point as each section Face realizes the energy allocation criterion of uniform-illumination.

As a kind of embodiment, the optical curve in described cross section is limited by the following differential equation: It is θ=θ at this ro_minTime lens value, θ is incident ray and light source center The angle of light direction, γ is the angle of emergent ray and light source center light direction, and n is the refractive index of lens, the solution obtained The optical curve that just can obtain corresponding cross section is connected with smooth curve.

As a kind of embodiment, described second curved surface is fully reflecting surface.

As a kind of embodiment, the second curved surface is by the described first surface edge vertical direction to described inner surface side Extend and formed.

As a kind of embodiment, between described second curved surface and inner surface, also include the 3rd song for light collimation Face.

As a kind of embodiment, formed for accommodating light source between described inner surface and inner surface edge place plane Cavity.

As a kind of embodiment, described inner surface is the hemisphere face with light source center as the centre of sphere.

This utility model embodiment provides a kind of light emitting module, has the Projecting Lamp lens described in any of the above-described item and support The lens pedestal of described Projecting Lamp lens.

As a kind of embodiment, described light source is LED module.

This utility model embodiment provides a kind of Projecting Lamp, including multiple arrays being made up of above-mentioned light emitting module.

This utility model having the beneficial effects that compared to prior art: be designed to generate efficiently by secondary light-distribution Lens curved surface, under the requirement meeting square focus spot bounding figure, it is achieved uniformity of illuminance more than 0.85.

Accompanying drawing explanation

Fig. 1 is the perspective view of the Projecting Lamp lens of this utility model embodiment；

Fig. 2 is another view stereo structural representation of the Projecting Lamp lens of this utility model embodiment；

Fig. 3 is the schematic cross-section of 45 ° of positions of the Projecting Lamp lens of this utility model embodiment；

Fig. 4 is the shadow surface area schematic corresponding to 45 ° of positions of the illuminating module of this utility model embodiment；

Fig. 5 is the Illumination Distribution figure of the light emitting module of this utility model embodiment；

Fig. 6 is the surface of intensity distribution of two sections of the light emitting module of this utility model embodiment；

Fig. 7 is the light projector lamp interior installation lens view of the present utility model of this utility model embodiment.

Accompanying drawing marks: A, inner surface；B, first surface；C, the 3rd curved surface；D, the second curved surface；1, lens body；2, lens Pedestal；3, LED module.

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.

Such as Fig. 1, shown in 2 and 7, a kind of Projecting Lamp lens realizing high uniform square hot spot include lens body 1, lens master Body 1 includes receiving the inside surface A emitted beam from light source and the outer surface of emergent ray, and its outer surface includes realizing square photograph , there is the second curved surface D of total reflection in the first surface B in territory, area pellucida, it is achieved the 3rd curved surface C of light collimation.

As shown in Figs. 3-4, first surface B is by light source is divided into equal angular cross section, corresponding by square focus spot Border be also carried out angularly dividing, 45 degree of cross sections of shadow surface in 45 degree of cross section corresponding diagram 4 of lens as shown in Figure 3, with light Speckle boundary point realizes the energy allocation criterion of uniform-illumination to the distance of spot center point as each cross section, overall goals face Brightness value thereby determines that.Limit by solving the following differential equation:

It is θ=θ at this ro_minTime lens value (this value is x= 0；Y=0；Time the value of z coordinate), θ is the folder of incident ray and light source center light direction (i.e. light source place is vertical direction) Angle, γ is emergent ray and the angle with light source center light direction, and n is the refractive index of lens, the solution smooth curve obtained Connect the optical curve that just can obtain corresponding cross section.Finally, the curve matching in each cross section is become the curved surface of a whole smooth, Obtain first surface B.

As Fig. 1 is to shown in 2, and the second curved surface is extended straight down by first surface edge and formed, its water surface cross section substantially in Square.The effect of the second curved surface is to ensure that being positioned at the light that the light source at initial point sends can occur to the second curved surface B Total reflection, reduces dazzle.

As Fig. 1 is to shown in 2, and the 3rd curved surface C connects the second comprehensive B and inner surface, and its upper end-face edge is parabola, and light source is sent out The light gone out through the 3rd curved surface C, by with light source center light direction be the light collimated incident of wide-angle to first surface B, carry Specular removal.3rd curved surface C can also be plane, and when lens body is installed on lens body, the 3rd curved surface C completely will not be naked Dew.

The cavity formed between lens body 1 inner surface and lens pedestal 2, can be used for placing such as the light source of LED module 3. The inner surface of lens body 1 is the hemisphere face with light source center as the centre of sphere.

As it can be seen in figures 5 and 6, the hot spot of light emitting module on shadow surface in uniform square be distributed, the uniformity reach 0.85 with On.

Design of the present utility model is, owing to special square focus spot border is difficult to look on LED-based secondary light-distribution To completely integrable mapping relations, this utility model sought a kind of based on cross section drive luminous intensity distribution means, concrete, by with The boundary point of hot spot to initial point distance as each optical cross section to go realize uniform illumination region, with hot spot boundary point The standard that the value maximum with spot center initial point distance is distributed as each cross section energy, the brightness value in overall goals face is the most true Fixed, by solving the optical curve corresponding to each cross section, finally, the curve matching in each cross section is become a whole smooth Curved surface, it is achieved the overall lens design of square high uniform light spots.Lens curved surface can be generated efficiently based on above three step, Under the requirement meeting square focus spot bounding figure, it is achieved uniformity of illuminance more than 0.85.

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

1. Projecting Lamp lens, it is characterised in that include that lens body, lens body include that reception emits beam from light source Inner surface and the outer surface of emergent ray, its outer surface include for by realize the first surface in square illumination region, second Curved surface, described second curved surface connects described first surface, and described first surface is spliced by the optical curve in some angularly cross sections Forming, described cross section realizes the energy distribution of uniform-illumination using hot spot boundary point to the distance of spot center point as each cross section Standard.

2. Projecting Lamp lens as claimed in claim 1, it is characterised in that the optical curve in described cross section is by the following differential equation Limit:It is θ=θ at this ro_minTime lens value, θ is incident illumination Line and the angle of light source center light direction, γ is the angle of emergent ray and light source center light direction, and n is the refraction of lens Rate, the solution smooth curve obtained connects the optical curve that just can obtain corresponding cross section.

3. Projecting Lamp lens as claimed in claim 1, it is characterised in that described second curved surface is fully reflecting surface.

4. Projecting Lamp lens as claimed in claim 2, it is characterised in that the second curved surface by described first surface edge to described The vertical direction of inner surface side extends and is formed.

5. Projecting Lamp lens as claimed in claim 1, it is characterised in that also include between described second curved surface and inner surface using The 3rd curved surface in light collimation.

6. Projecting Lamp lens as claimed in claim 1, it is characterised in that described inner surface and inner surface edge place plane it Between formed for accommodating the cavity of light source.

7. Projecting Lamp lens as claimed in claim 1, it is characterised in that described inner surface is half with light source center as the centre of sphere Sphere.

8. a light emitting module, has the Projecting Lamp lens according to any one of claim 1-7 and the described Projecting Lamp of support is saturating The lens pedestal of mirror.

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

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