CN105020676B

CN105020676B - A kind of optical lens

Info

Publication number: CN105020676B
Application number: CN201410180561.4A
Authority: CN
Inventors: 王洪波; 程争光; 沈祥
Original assignee: Opple Lighting Co Ltd
Current assignee: Opple Lighting Co Ltd
Priority date: 2014-04-30
Filing date: 2014-04-30
Publication date: 2018-12-04
Anticipated expiration: 2034-04-30
Also published as: CN105020676A

Abstract

The invention discloses a kind of optical lenses, the optical lens is polyhedron shape, it has the optics cavity of the vertebral body shape positioned at the lens interior, the optics cavity has virtual central axes, the outer surface of the optical lens has bottom surface and several sides, the optical lens is formed with a cross section along the central axes of the optics cavity, the cross section is divided into upper and lower part, the width at the top on top is less than the width of bottom, the width at the top of the lower part is greater than the width of bottom, the optical lens is used to adjust the light-emitting angle of light, the light is from the incident optical lens of the optics cavity, it is shot down by the optical lens rear-inclined, wherein it is more than the light projected from bottom surface from the light that the side of lower part is projected.

Description

A kind of optical lens

[technical field]

The present invention relates to a kind of lens, a kind of especially optical lens for lamp.

[background technique]

With the development of light emitting diode (LED) technology, more and more high-powered LED lamps are designed to illuminate, example As house illuminates.Have brightness abundance, energy conservation, high reliablity, service life long relative to the lighting sources LED light such as existing incandescent lamp Many advantages, such as, this makes it have broader practice prospect in lighting area.

LED light source is point light source, it is often necessary to be converted into face light by mask, lens or other optical processing systems Source, otherwise dazzle is too strong.

Chinese patent application discloses No. CN102102847A and discloses a kind of LED area light source lens, internal top The light reflective recess for forming a reverse tapered shape forms a light source recess in the bottom of lens interior.On the bottom of area light source lens Site is formed, a reflecting layer is then formed.Area light source lens are directed to single point light source-LED light source, make the light of point light source Become area source after lens.But the lens can not adapt to the requirement of multiple point light sources, and due to the outer surface of the lens For perpendicular, light can not be concentrated on certain required directions.

Therefore, in order to overcome drawbacks described above, it is necessary to provide a kind of improved optical lens.

[summary of the invention]

The purpose of the present invention is to provide a kind of optical lenses.

To achieve the goals above, the present invention adopts the following technical scheme: a kind of optical lens, the optical lens are more The face bodily form, has the optics cavity of the back taper bodily form positioned at the lens interior, and the optics cavity has virtual central axes, institute The outer surface for stating optical lens has bottom surface and several sides, and the optical lens is formed with along the central axes of the optics cavity One cross section, the cross section are divided into upper and lower part, and the width at the top on top is less than the width of bottom, the top of the lower part Width be greater than the width of bottom, the optical lens is used to adjust the light-emitting angle of light, and the light is from the optics cavity The incident optical lens, is shot down by the optical lens rear-inclined, wherein the light projected from the side of lower part is more In the light projected from bottom surface.

Preferably, the optical lens is the outer cover of bulb lamp or candle lamp.

Preferably, width gradually broadens and becomes narrow gradually again the optical lens from top to bottom, and ends in bottom surface, it is described on The side in portion has several planes, and the side of the lower part has several planes.

Preferably, the plane of the side of the plane and lower part of the side on the top of the optical lens is in the optics cavity It is corresponding on the direction of central axes.

Preferably, the plane perpendicular is in the central axes of the optics cavity of the back taper bodily form, the tip of the back taper bodily form Towards the bottom surface so that the light projected from bottom surface it is less.

Preferably, the optics cavity is polyhedron shape or cone shape.

Preferably, the polyhedron of the optics cavity of the polyhedron shape is corresponding with the polyhedron of the lens.

Preferably, the side of the optical lens has at least ten plane.

Preferably, the side of the optical lens has 12 planes, wherein the surface on the top has 6 planes, The surface of the lower part has 6 planes, and the plane on the top is corresponding with the plane of the lower part.

Preferably, the optical lens further includes a fixed part upwardly extended from the top, and the fixed part is by institute Optical lens is stated to be fixed on other devices.

Compared to the prior art, optical lens of the present invention, which has the advantage that, can be such that light concentration projects diagonally downward, cause Bright effect.

[Detailed description of the invention]

Fig. 1 is the perspective view of the first preferred embodiment of optical lens of the present invention.

Fig. 2 is the side view of the first preferred embodiment of optical lens of the present invention.

Fig. 3 is the top view of the first preferred embodiment of optical lens of the present invention.

Fig. 4 is the cross-sectional view for being installed on fixed device of the first preferred embodiment of optical lens of the present invention.

Fig. 5 is the index path in the diagrammatic cross-section of optical lens of the present invention.

Fig. 6 is the light distribution curve of the first preferred embodiment of optical lens of the present invention.

Fig. 7 is the perspective view of the second preferred embodiment of optical lens of the present invention.

[specific embodiment]

It please referring to shown in Fig. 1 and Fig. 4, a kind of optical lens 1 of the first preferred embodiment of the invention is polyhedron shape, Optics cavity 10 with the back taper bodily form being located inside lens 1.Optics cavity 10 has virtual central axes.The back taper bodily form is not one Surely there is tip, but general shape is in reverse taper, i.e. width is gradually reduced from upper to small.The outer surface of optical lens 1 has Bottom surface 11 and several sides 12 split optical lens 1 along the central axes of optics cavity 10, which is divided into top 13 under Portion 14, please refers to Fig. 2, and the width at the top 130 on top 13 is less than the width of bottom 131, the width at the top 140 of lower part 14 Degree is greater than the width of bottom 141.Optical lens 1 is used to adjust the light-emitting angle of light, and light is saturating from 10 beam incident optical of optics cavity Mirror 1 is shot down by 1 rear-inclined of optical lens, and the light projected from bottom surface 11 is less, is projected from the side 122 of lower part 14 Light it is more.As shown in figure 5, can significantly find out, light for the index path drawn in the diagrammatic cross-section of optical lens 1 It learns lens 1 and is more than the light projected from bottom surface from the light that the side of lower part is projected.Such optical lens 1 can be adjusted effectively The angle of whole light, so that Ray obliquity is shot down, and the light in side 12 is more, and the light that bottom surface 11 is projected is less, So that using the LED light of the optical lens 1 particularly suitable as light source use in the lamps and lanterns such as Crystal lamp, utilize less LED Light source number causes preferably bright lighting effects.Fig. 6 show the optical lens 1 of the first preferred embodiment of the invention Light distribution curve, it can be seen that light all concentrates on direction diagonally downward.

Optical lens 1 can be bulb lamp or the outer cover of candle lamp.Optical lens 1 is directly as bulb lamp or candle lamp Outer cover, the loss of light can be made less, and the structure of bulb lamp or candle lamp is simpler.

Width gradually broadens and becomes narrow gradually again optical lens 1 from top to bottom, and ends in bottom surface 11, the side on top 13 121 have several planes, and the side 122 of lower part 14 has several planes.Different planes can guide light to different Direction, so that light is relatively concentrated in several required directions.The plane of the side 121 on the top 13 of optical lens 1 with The plane of the side 122 of lower part 14 is corresponding, i.e. the number phase of the side 122 of the number and lower part 14 of the side 121 on top 13 Same and position is corresponding.

Please refer to Fig. 4, central axes of the bottom surface 11 perpendicular to the optics cavity 10 of the back taper bodily form, the tip of the back taper bodily form 101 towards bottom surface 11 so that light projected from bottom surface 11 it is less.

Optics cavity 10 is polyhedron shape or cone shape.In the present embodiment, optics cavity 10 is polyhedron shape, polyhedron shape The polyhedron of optics cavity 10 is corresponding with the polyhedron of optical lens 1.The plane of the side wall of optics cavity 10 and 1 outer surface of optical lens Plane it is corresponding.The plane of the side wall of optics cavity 10 is identical as the plane number of 1 outer surface of optical lens, and position is corresponding.This It invents in the second preferred embodiment, as shown in fig. 7, optics cavity 20 is also possible to cone shape.

The side of optical lens 1 has at least ten plane.In the present embodiment, there are 12 to be put down for the side of optical lens 1 Face, the surface of middle and upper part 13 have 6 planes, and the surface of lower part 14 has 6 planes, and the plane on top 13 and lower part 14 Plan-position it is corresponding.

Optical lens 1 further includes a fixed part 15 upwardly extended from the top 130 on top 13, and fixed part 15 is by optical lens Mirror 1 is fixed on other devices.Shown in referring to figure 4., in the present embodiment, optical lens 1 is fixed on heat dissipation by fixed part 15 On device 3.Radiator 3 is the radiator or pedestal of bulb lamp (not shown) or candle lamp (not shown), 1 conduct of optical lens The outer cover of bulb lamp or candle lamp.

It should be noted that the embodiment of the present invention has preferable implementation, and not the present invention is made any type of Limitation, any one skilled in the art change or are modified to possibly also with the technology contents of the disclosure above equivalent effective Embodiment, as long as without departing from the content of technical solution of the present invention, it is to the above embodiments according to the technical essence of the invention Any modification or equivalent variations and modification, all of which are still within the scope of the technical scheme of the invention.

Claims

1. a kind of optical lens, the optical lens is polyhedron shape, has the back taper bodily form positioned at the lens interior Optics cavity, the optics cavity have virtual central axes, and the outer surface of the optical lens has bottom surface and several sides, institute It states optical lens and is formed with a cross section along the central axes of the optics cavity, which is divided into upper and lower part, the top on top The width in portion is less than the width of bottom, and the width at the top of the lower part is greater than the width of bottom, and the optical lens is for adjusting The light-emitting angle of whole light, the light pass through the optical lens rear-inclined from the incident optical lens of the optics cavity Shoot down, wherein be more than the light projected from bottom surface from the light that the side of lower part is projected, the plane perpendicular in it is described The central axes of the optics cavity of cone-shaped, the tip of the back taper bodily form is towards the bottom surface, so that the light is projected from bottom surface It is less.

2. optical lens as described in claim 1, it is characterised in that: the optical lens is the outer of bulb lamp or candle lamp Cover.

3. optical lens as described in claim 1, it is characterised in that: width gradually broadens again the optical lens from top to bottom It becomes narrow gradually, and ends in bottom surface, the side on the top has several planes, and the side of the lower part has several planes.

4. optical lens as claimed in claim 3, it is characterised in that: the plane of the side on the top of the optical lens is under The plane of the side in portion is corresponding on the central axes direction of the optics cavity.

5. optical lens as described in claim 1, it is characterised in that: the optics cavity is polyhedron shape or cone shape.

6. optical lens as claimed in claim 5, it is characterised in that: the polyhedron of the optics cavity of the polyhedron shape with it is described The polyhedron of lens is corresponding.

7. optical lens as described in claim 1, it is characterised in that: the side of the optical lens is flat at least ten Face.

8. optical lens as claimed in claim 7, it is characterised in that: the side of the optical lens has 12 planes, Described in the surface on top there are 6 planes, the surface of the lower part has 6 planes, and the plane on the top with it is described The plane of lower part is corresponding.

9. optical lens as described in claim 1, it is characterised in that: the optical lens further includes one upward from the top The optical lens is fixed on other devices by the fixed part of extension, the fixed part.