CN104501090A

CN104501090A - Lens

Info

Publication number: CN104501090A
Application number: CN201410775838.8A
Authority: CN
Inventors: 程争光; 王洪波; 黄爱琴
Original assignee: Opple Lighting Co Ltd
Current assignee: Opple Lighting Co Ltd
Priority date: 2014-12-15
Filing date: 2014-12-15
Publication date: 2015-04-08
Anticipated expiration: 2034-12-15
Also published as: CN104501090B

Abstract

The invention discloses a lens. The lens comprises a hollow accommodating cavity, a first optical element and a second optical element, wherein the hollow accommodating cavity is used for accommodating a light source; the first optical element is positioned around the accommodating cavity; the second optical element is positioned below the first optical element; the outer diameter of the second optical element is larger than the first optical element; the accommodating cavity penetrates through the second optical element in the vertical direction and is positioned in the first optical element; the outer side face of the first optical element comprises a plurality of cutting surfaces.

Description

A kind of lens

[technical field]

The present invention relates to a kind of light exchange device, especially a kind of lens.

[background technology]

More and more be applicable in light fixture or light source to lens, to make light fixture or the better luminous intensity distribution of light source in modern Lighting Design.Usually use candle lamp or common bulb lamp as light source in Crystal lamp.Because present candle lamp and bulb lamp also use LED as light source usually, therefore due to the limitation of LED light source, such that the luminescence of candle lamp or bulb lamp is bright not or lighting angle is large not.

Therefore, in order to overcome above-mentioned defect, be necessary the lens that a kind of improvement is provided.

[summary of the invention]

The object of the present invention is to provide a kind of lens.

To achieve these goals, the present invention adopts following technical scheme: a kind of lens, comprise the host cavity for placing light source of hollow, be positioned at around host cavity the first optical element and the second optical element of being positioned at below described first optical element, the external diameter of described second optical element is greater than described first optical element, described host cavity is along upper and lower to running through described second optical element and being partly positioned at described first optical element, and the lateral surface of described first optical element comprises some cut surfaces.

Preferably, described lens are hat shape, the first optical element and the second optical element one-body molded.。

Preferably, described lens are along an axis axial symmetry, and between the bottom surface of described second optical element and described axis, shape has angle, and described angle is between 45 degree to 90 degree.

Preferably, the main part that described first optical element comprises truncated cone-shaped and the extension extended outward from described main part, described host cavity is positioned at the middle and lower part of described main part.

Preferably, described main part and described extension have some exiting surfaces respectively.

Preferably, described main part is the truncated cone-shaped of hollow, and the outside of described truncated cone-shaped is some exiting surfaces by described extension.

Preferably, described extension comprises some tapered portion of extending from described main part, and described tapered portion is from the top of described main part downwardly towards shrinking gradually outward, and width narrows gradually, forms some exiting surfaces.

Preferably, described second optical element comprise some light lead to portion and connect between two described light lead to the connecting portion in portion, described light leads to portion and to be connected with the bottom surface of described connecting portion the bottom surface of formation second optical element, and light can lead to the end face of portion and connecting portion from described light and side transmits.

Preferably, the described light portion of leading to is triangular pyramidal, from the exterior bottom inwardly upper contraction of described second optical element, forms three exiting surfaces.

Preferably, described every a junction is wedge shape, and has outside opening, and the end face of described every a junction and side have three exiting surfaces altogether.

Compared to prior art, lens of the present invention have following advantage: after can making light source scioptics, form bright effect, and have larger lighting angle.

[accompanying drawing explanation]

Fig. 1 is the stereogram of the preferred embodiment of lens of the present invention.

Fig. 2 is the stereogram of another angle of the preferred embodiment of lens of the present invention.

Fig. 3 is the stereogram with light source of the preferred embodiment of lens of the present invention.

[detailed description of the invention]

Please refer to shown in Fig. 1 to Fig. 3, the lens 1 of present pre-ferred embodiments, comprise the host cavity 10 for placing light source of hollow, be positioned at around host cavity 10 the first optical element 12 and the second optical element 14 of being positioned at below the first optical element 12, the external diameter of the second optical element 14 is greater than the first optical element 12, and host cavity 10 is along upper and lower to running through the second optical element 14 and being partly positioned at the first optical element 12.The lateral surface of the first optical element 12 comprises some cut surfaces.Lens 1 of the present invention have host cavity 10, and light source can be arranged in host cavity 10 or partly be positioned at host cavity 10 part and expose outside host cavity 10, thus make the light of a light source part form bright effect by having lens 1 transmission of some cut surfaces.

Further, lens 1 in hat shape, the first optical element 12 and the second optical element 14 one-body molded.Lens 1 are along an axis axial symmetry, and between the bottom surface 145 of the second optical element 14 and axis, shape has angle, and angle is between 45 degree to 90 degree.Namely the bottom surface 145 of the second optical element 14 is not level, but a clinoplain, make the some light of light source reflect by the bottom surface 145 of the second optical element 14 and form larger lighting angle.And the lens 1 of hat shape can make the exiting surface of the second optical element 14 stretch out, thus conveniently increase exiting surface, to realize more bright effect.In the present embodiment, for transparent material is made bottom the second optical element 14, do not cover reflecting material, therefore bottom neither be reflected completely to the reflection of light, has some light to enter lens 1.Here the reflection ray of indication, is represent after bottom light directive second optical element 14, at least has some light and reflected rear injection.In other embodiments, also can increase reflectorized material to increase reflectivity bottom the second optical element 14.Please refer to shown in Fig. 3, light source 2 is arranged in host cavity 10, the optimal placed location of light source 2 is that a part is positioned at host cavity 10, it is outside that a part exposes host cavity 10, like this, a part of light of light source 2 reflects downwards through reflecting surface 145, increases lighting angle, another part light transmits from lens 1, forms bright illumination effect.In other embodiments, it is inner that light source 2 also can be positioned at host cavity 10 completely.

The lateral surface of the first optical element 12 comprises some cut surfaces, and described cut surface makes the first optical element 12 have lateral surface as diamond cutting, thus makes light by reaching bright effect after the first optical element 12.

First optical element 12 comprises the extension 121 that the main part 120 of truncated cone-shaped and main body 120 periphery extend radially outward out, and host cavity is positioned at the middle and lower part of main part 120.

Main part 120 and extension 121 have some exiting surfaces 1202,1212 respectively.Exiting surface is more, and the concentrated lighting angle of light is abundanter, makes light more bright by the illumination effect after the first optical element 12.

Main part 120 is the truncated cone-shaped of hollow, and the outside of truncated cone-shaped is divided into some exiting surfaces 1202 by along its circumferential spaced extension 121, and namely the exiting surface 1202 of main part 120 is be split to form by extension 121 at least partly.

Extension 121 comprises the tapered portion 1211 that some main body 120 extend, and the top of tapered portion 1211 main body 120 is downwardly towards shrinking gradually outward, and width narrows gradually, forms some exiting surfaces 1212.

Second optical element 14 comprises some light and leads to portion 141 and connect the connecting portion 142 that light between two leads to portion 141, light leads to portion 141 and is connected with the bottom surface of connecting portion 142 and namely forms the bottom surface 145 of the second optical element 14, and light can lead to the end face of portion 141 and connecting portion 142 from light and side transmits.

Light leads to portion 141 for triangular pyramidal, from the exterior bottom inwardly upper contraction of the second optical element 14, forms three exiting surfaces 1410,1411,1412.In other embodiments, it can not be also triangular pyramidal that light leads to portion 141, and is designed to other shapes.

Every a junction 142 in wedge shape, and has outside opening 1420, and the end face of every a junction 142 and side have three exiting surfaces 1421,1422,1423 altogether.In other embodiments, connecting portion 142 also can not be wedge shape, and be designed to other shapes, and also can not have opening 1420 or there is multiple opening 1420, not having opening 1420 can make connecting portion 142 reduce by two exiting surfaces, and multiple openings 1420 can increase the exiting surface of connecting portion 142.

Should be noted that, embodiments of the invention have preferably implementation, and not any type of restriction is done to the present invention, any person skilled in art of being familiar with may utilize the technology contents of above-mentioned announcement change or be modified to equivalent effective embodiment, in every case the content of technical solution of the present invention is not departed from, the any amendment done above embodiment according to technical spirit of the present invention or equivalent variations and modification, all still belong in the scope of technical solution of the present invention.

Claims

1. lens, comprise the host cavity for placing light source of hollow, be positioned at around host cavity the first optical element and the second optical element of being positioned at below described first optical element, the external diameter of described second optical element is greater than described first optical element, described host cavity is along upper and lower to running through described second optical element and being partly positioned at described first optical element, and the lateral surface of described first optical element comprises some cut surfaces.

2. lens as claimed in claim 1, is characterized in that: described lens are hat shape, the first optical element and the second optical element one-body molded.

3. lens as claimed in claim 1, is characterized in that: described lens are along an axis axial symmetry, and between the bottom surface of described second optical element and described axis, shape has angle, and described angle is between 45 degree to 90 degree.

4. lens as claimed in claim 1, is characterized in that: the main part that described first optical element comprises truncated cone-shaped and the extension extended outward from described main part, described host cavity is positioned at the middle and lower part of described main part.

5. lens as claimed in claim 4, is characterized in that: described main part and described extension have some exiting surfaces respectively.

6. lens as claimed in claim 5, it is characterized in that: described main part is the truncated cone-shaped of hollow, the outside of described truncated cone-shaped is some exiting surfaces by described extension.

7. lens as claimed in claim 5, it is characterized in that: described extension comprises some tapered portion of extending from described main part, described tapered portion is from the top of described main part downwardly towards shrinking gradually outward, and width narrows gradually, forms some exiting surfaces.

8. lens as claimed in claim 1, it is characterized in that: described second optical element comprise some light lead to portion and connect between two described light lead to the connecting portion in portion, described light leads to portion and to be connected with the bottom surface of described connecting portion the bottom surface of formation second optical element, and light can lead to the end face of portion and connecting portion from described light and side transmits.

9. lens as claimed in claim 8, is characterized in that: the described light portion of leading to is triangular pyramidal, from the exterior bottom inwardly upper contraction of described second optical element, form three exiting surfaces.

10. lens as claimed in claim 8, it is characterized in that: described every a junction is wedge shape, and has outside opening, the end face of described every a junction and side have three exiting surfaces altogether.