CN202546602U

CN202546602U - Optical lens

Info

Publication number: CN202546602U
Application number: CN201120555522XU
Authority: CN
Inventors: 唐德龙
Original assignee: Dongguan Ledlink Optics Inc
Current assignee: Dongguan Ledlink Optics Inc
Priority date: 2011-12-28
Filing date: 2011-12-28
Publication date: 2012-11-21
Anticipated expiration: 2021-12-28

Abstract

The utility model provides an optical lens which is applicable to a light source that emits a light ray. The optical lens comprises a light guide component, wherein the light guide component is provided with a light inlet surface and a light outlet surface that are opposite in position, as well as a bulge, wherein the bulge extends from the light outlet surface to the light inlet surface and is positioned in the center of the light guide component; the light source is close to the bulge; the radii of a plurality of refraction components are gradually increased from the center of the light guide component to the outside, and the refraction components are arranged at the bulge in sequence; and the light ray emitted from the light source penetrates through the refraction components, and is concentrated in the light guide component and then diffused and emitted by a diffusion curved surface or a light diffuser, so that the light ray is diffused more uniformly.

Description

Optical lens

Technical field

The utility model is about a kind of optical lens, particularly a kind of optical lens with refraction assembly and diffusion curved surface.

Background technology

Along with the progress in development of science and technology and epoch, the technology of lighting apparatus also constantly promotes, have better illumination and more the illuminations of power saving also arise at the historic moment gradually.Via after Edison improvement, incandescent lamp bulb, fluorescent lamp etc. have been experienced in the development of lamp from bulb.

The incandescent lamp bulb low price, but luminous efficiency is low, and fluorescent lamp efficient is high, but fluorescent tube is frangible, and old-fashioned fluorescent lamp needs starter and stabilizer, thereby produces acoustic noise sometimes, and luminosity also has the flicker problem.The integrated electric ballast in new-type fluorescent tube and electricity-saving lamp (being applicable to the standard lamp socket) the inside, comparatively robust is still the optimal selection of home lighting at present with efficient.

Develop now a kind of light emitting diode (Light Emitting Diodes, LED).Light emitting diode is a kind of semiconductor subassembly; Light emitting diode has multiple advantages such as power saving, durable, lower calorific value and environmental protection; The light source that is produced is a cold light source; Have long service life, low power consumption and do not have the characteristics that produce ultraviolet radiation, therefore, light emitting diode little by little progressively replaces the application of conventional light source.Also because of the above-mentioned characteristic of light emitting diode, national governments recommend to use the led lamp structure-improved to replace the osram lamp of traditional consuming electric power all energetically.Especially advocating the advocating under the demand of " carbon reduction ", the power saving superiority of light emitting diode just begins to come into one's own.In fossil energy shortage and environmental consciousness surging today day by day, kind has been all circles' focuses deeply concerned with light emitting diode, and therefore various light emitting diode lighting equipments are weeded out the old and bring forth the new like the mushrooms after rain.

Yet; Light emitting diode is because light-emitting area is little; The light source convergence that is sent is a point-like light source, so when light emitting diode was exported as general light source, its light source had the inhomogeneous situation of output and takes place; Especially need in short distance, just reach the application of the light source of uniform luminance, the use of light emitting diode is restricted.

The existing at present leaded light component that uses, the principle of utilizing refraction is converged in the certain area coverage the inhomogeneous light output of light emitting diode with outwards guiding and the diffusion of light with light emitting diode, makes it reach light source output comparatively uniformly in the regional area.Yet; Though the leaded light component of convention can spread light, the brightness decay among the convention leaded light component outside the mind-set gets very fast, makes the center brightness of leaded light component bright many than the outside; Hence one can see that, and the convention leaded light component can not effectively evenly spread light.

Moreover, utilize leaded light component with the mode of light emitting diode with comparatively even output, its light emitting diode and exposure face or object still need have enough distances, can reach the preferable even purpose of light.If light emitting diode from the distance of exposure face or object very in short-term, still have tangible light source non-uniform phenomenon, so utilize leaded light component that light emitting diode is carried out improved optics, still can't solve the inhomogeneous problem of distribution of light completely.

The utility model content

In view of above problem, the utility model provides a kind of optical lens, and it can be uniformly distributes the light of light source uniformly, so can solve the problem that prior art produces.

The utility model provides a kind of optical lens, is applicable to a light source, and light source has sent a light; Optical lens comprises a leaded light component and a plurality of refraction assembly, and leaded light component has an incidence surface and an exiting surface, and the position of incidence surface and exiting surface is relative; Leaded light component is provided with a protuberance; Protuberance is extended by the direction of exiting surface to incidence surface and is provided with, and protuberance is positioned at the center of leaded light component, and light source is adjacent to protuberance; The refraction assembly is around the periphery of being located at protuberance; The radius of refraction assembly is outwards cumulative by the center of leaded light component, and the refraction assembly is arranged at protuberance in regular turn, and the light that light source sends passes refraction assembly and in leaded light component, converging.

The optical lens of the utility model more comprises and more comprises a plurality of diffusion curved surfaces, is arranged on this exiting surface, and light passes the refraction assembly and in leaded light component, concentrates, and sends via the diffusion of diffusion curved surface again.

The optical lens of the utility model more includes a plurality of light diffusion bodies, is arranged on the exiting surface, and each light diffusion body has a diffusion curved surface, and the light that light source sends passes the refraction assembly and in leaded light component, concentrates, and sends via the light diffusion body diffusion again.

The effect of the utility model is, by the design of a plurality of refraction assemblies, lets the light that light source produced reflect for the first time and inwardly concentrate, and excessively disperses the problem of center brightness attenuating in the time of so can reducing the light diffusion with the light of avoiding light source.

In addition; The utility model is more by a plurality of diffusion curved surfaces or the design of light diffusion body; Let the light that produces refraction for the first time carry out the refraction second time again, the light that penetrates in the diffusion curved surface is spread more uniformly, the problem inhomogeneous with the distribution of light in lucifuge source produces.

About the characteristic of the utility model, the real work and effect, cooperate the graphic most preferred embodiment of doing to specify as follows now.

Description of drawings

Figure 1A be the utility model first preferred embodiment the stereogram of optical lens

Figure 1B is the stereogram of optical lens of the different visual angles of the utility model first preferred embodiment

Fig. 1 C is the vertical view of the optical lens of the utility model first preferred embodiment

Fig. 1 D is the A-A direction cutaway view of Fig. 1 C.

Fig. 2 is the partial sectional view of the refraction assembly of the utility model first preferred embodiment.

Fig. 3 A is the stereogram of the optical lens of the utility model second preferred embodiment

Fig. 3 B is the vertical view of the optical lens of the utility model second preferred embodiment

Fig. 3 C is the B-B direction cutaway view of Fig. 3 B of the utility model second preferred embodiment

Fig. 3 D is the partial sectional view of the diffusion curved surface of the utility model second preferred embodiment.

Fig. 3 E is the partial enlarged drawing of Fig. 3 B.

Fig. 4 is the structural representation of the optical lens of the utility model the 3rd preferred embodiment.

Fig. 5 is the structural representation of the optical lens of the utility model the 4th preferred embodiment.

The specific embodiment

See also Figure 1A, Figure 1B, Fig. 1 C and Fig. 1 D, it is stereogram, the vertical view of optical lens and the A-A direction cutaway view of Fig. 1 C of optical lens of the different visual angles of the utility model first preferred embodiment.

As shown in the figure, the optical lens of the utility model first preferred embodiment, it is applicable to a light source 100 (shown in Fig. 1 D), and light source 100 has sent a light.The optical lens of the utility model comprises a leaded light component 200 and a plurality of refraction assemblies 300; Leaded light component 200 has an incidence surface 202 and an exiting surface 204; Incidence surface 202 is relative with the position of exiting surface 204; Leaded light component 200 is provided with a protuberance 2022, and protuberance 2022 extends setting by the direction of exiting surface 204 to incidence surface 202, and light source 100 is adjacent to protuberance 2022; Refraction assembly 300 is around the periphery of being located at protuberance 2022, and the radius of refraction assembly 300 is outwards cumulative and be located at protuberance 2022 by the center of leaded light component 200.

The leaded light component 200 of present embodiment comprises a light conductor 210 and a transparent substrates 220; Light conductor 210 is located at light source 100, and transparent substrates 220 is located at light conductor 210, and incidence surface 202 is positioned at light conductor 210; Exiting surface 204 is positioned at transparent substrates 220, and protuberance 2022 then is located at light conductor 210.The light conductor 210 of present embodiment is in order to 100 light that send of guiding light source, and transparent substrates 220 is gone out in order to the divergence of beam that light conductor 210 is guided.The light conductor 210 of present embodiment is a vertebral body; Light source 100 is arranged at light conductor 210 and supports end; Light source 100 is set for ease; So present embodiment is more established a storage tank 212 in light conductor 210 bottoms, protuberance 2022 is positioned at storage tank 212, and light source is located at storage tank 212 and be adjacent to protuberance 2022.In addition, the leaded light component 200 of present embodiment can only comprise light conductor 210 according to actual demand, both sides under incidence surface 202 then is located on the light conductor 210 respectively with exiting surface 204.

Please consult Fig. 2 in the lump, it is office's cutaway view of the refraction assembly of the utility model first preferred embodiment.As shown in the figure, when light passes refraction assembly 300, because protuberance 2022 is risen by the direction ridge of exiting surface 204 to incidence surface 202; Refraction assembly 300 then is located at protuberance 2022, and when light wears superrefraction assembly 300, shown in Fig. 1 D; When light can wear protuberance 2022; Light can be to leaded light component 200 off-centrings, and the mode of skew is as shown in Figure 2, and light is concentrated to the center.Light can refract to diffusion curved surface 400 afterwards.By protuberance 2022 and refraction assembly 300, excessively disperse with the light of avoiding light source.

See also Fig. 3 A, Fig. 3 B, Fig. 3 C and Fig. 3 D, it is the stereogram of the optical lens of the utility model second preferred embodiment, vertical view and the B-B direction cutaway view of Fig. 3 B and office's cutaway view of diffusion curved surface of optical lens.As shown in the figure; This embodiment is different from first embodiment and is that this embodiment more comprises a plurality of diffusion curved surfaces 400; Diffusion curved surface 400 is arranged on the exiting surface 204; The light that light source 100 sends passes refraction assembly 300 and in leaded light component 200, concentrates, and sends via 400 diffusions of diffusion curved surface again.Diffusion curved surface 400 is located at transparent substrates 220, makes transparent substrates 220 between light conductor 210 and diffusion curved surface 400.

The diffusion curved surface 400 of the utility model is just as lens; When light source 100 emitted beam, its light passed behind the leaded light component 200 and sends by spread behind diffusion curved surface 400 optically focused, after light being passed spread curved surface 400; To on diffusion curved surface 400, converge at the focal position of diffusion curved surface 400; Light via the focal position to external diffusion, produce a plurality of astigmatism to external diffusion, these astigmatism with the diffusion curved surface 400 the center of curvature to external diffusion; Shown in Fig. 3 D, so the utility model can produce a plurality of astigmatism to reach the purpose of even distribution with the light with light source 100 by diffusion curved surface 400.

So when light source 100 is installed in the optical lens of the utility model; Light is by light conductor 210 guidings; When light when arriving at transparent substrates 220, by the refraction assembly 300 do primary refraction, light is concentrated after; Do secondary refraction by diffusion curved surface 400 again, light is spread.So can let the diffusion effect of light promote, more let light distribute uniformly.

Please consult Fig. 3 E in the lump, it is the partial enlarged drawing of Fig. 3 B.As shown in the figure, the shape of the diffusion curved surface 400 of the utility model can be polygon, for example geometries such as pentagon, hexagon, octagon.Preferably, the diffusion curved surface 400 of present embodiment be shaped as regular hexagon, but do not exceed with the embodiment that the utility model was disclosed.The diffusion curved surface 400 of present embodiment regular hexagon structural strong, just as honeycomb, present embodiment selects for use regular hexagon can increase the structural strength of diffusion curved surface 400, receives the bump of external force and infringement to some extent to reduce diffusion curved surface 400.

The curvature of the diffusion curved surface 400 of present embodiment is between 0.4 to 2.5; And the spacing d (shown in Fig. 2 C) between the relative dual side-edge of diffusion curved surface 400 is approximately between 0.3 millimeter (mm) to 1.5 millimeters (mm); Wherein preferable spacing d is 0.9 millimeter, but not as limit, is familiar with this operator; Can be according to the actual design demand, and corresponding the change between the present embodiment apart from being 1 millimeter waited other length between being located in 0.3 millimeter to 1.5 millimeters.

See also Fig. 4, it is the local enlarged diagram of the optical lens of the utility model the 3rd preferred embodiment.As shown in the figure, the optical lens of the optical lens of present embodiment and two embodiment all comprises leaded light component 200 and diffusion curved surface 400, and leaded light component 200 all is located at light source 100.Yet what the 3rd embodiment was different from that second embodiment is to spread curved surface 400 is provided with the position difference.

In detail; The diffusion curved surface 400 of the optical lens of second embodiment is located at exiting surface 204 belows of leaded light component 200; Diffusion curved surface 400 is submerged in leaded light component 200; And the optical lens of the 3rd embodiment is that diffusion curved surface 400 is located at exiting surface 204 tops, makes diffusion curved surface 400 protrude in leaded light component 200 and form a light diffusion body 410.

Please consult Fig. 5 in the lump, it is the structural representation of the optical lens of the utility model the 4th preferred embodiment.As shown in the figure; The optical lens of several embodiment was before the optical lens of this embodiment was different from; The optical lens of present embodiment more comprises plurality of fixed post 500; And fixed leg 500 is located at the below or the side of the transparent substrates 220 of leaded light component 200, and this embodiment is that being located at square under the leaded light component 200 with fixed leg 500 is that example is explained, but not as limit.

The fixed leg 500 of present embodiment can provide the support force of the lamp socket (not shown) that optical lens is fixedly set in lighting device; And light source 100 can be set on the lamp socket; And lamp socket is provided with corresponding hole and supplies fixed leg 500 to plug, so can let the optical lens of this creation firm be arranged at lighting device.

In sum; The utility model provides a kind of optical lens, and it lets light produce refraction for the first time via a plurality of refraction assemblies, to let light inwardly concentrate uniformly; Let light produce refraction for the second time afterwards again, let light spread uniformly via a plurality of diffusion curved surfaces.

Though the embodiment of the utility model discloses as stated; So be not in order to limit this creation; Any person that has the knack of the related process; In spirit that does not break away from the utility model and scope, such as according to the said shape of the utility model application range, structure, characteristic and quantity when can doing a little change, so the scope of patent protection of the utility model must be looked the appended claim person of defining of this specification and is as the criterion.

Claims

1. an optical lens is applicable to a light source, and this light source sent a light,

This optical lens comprises:

One leaded light component; Have an incidence surface and an exiting surface; The position of this incidence surface and this exiting surface is relative, and this leaded light component is provided with a protuberance, and this protuberance extends setting by the direction of this exiting surface to this incidence surface; And this protuberance is positioned at the center of this leaded light component, and this light source vicinity is located at this protuberance; And

A plurality of refraction assemblies, around the periphery of being located at this protuberance, the radius of these refraction assemblies is outwards cumulative by the center of this leaded light component, and these refraction assemblies are arranged at this protuberance in regular turn.

2. like the 1st said optical lens of request terms, wherein this leaded light component comprises:

One light conductor is located at this light source; And

One transparent substrates is located at this light conductor.

3. like the 1st said optical lens of request terms, wherein this leaded light component is provided with a storage tank, and this protuberance is positioned at this storage tank, and this light source is located at this storage tank and is adjacent to this protuberance.

4. like the 1st said optical lens of request terms, more comprise a plurality of diffusion curved surfaces, be arranged on this exiting surface, light passes the refraction assembly and in leaded light component, concentrates, and sends via the diffusion of diffusion curved surface again.

5. like the 4th said optical lens of request terms; More comprise a plurality of light diffusion bodies; Be arranged on this exiting surface; Each this light diffusion body has this diffusion curved surface, and this light that this light source sends passes these refraction assemblies and in this leaded light component, concentrates, and sends via these light diffusion body diffusions again.

6. like the 1st said optical lens of request terms, wherein the shape of this diffusion curved surface system is a polygon.

7. like the 6th said optical lens of request terms, wherein the shape of this diffusion curved surface system is a regular hexagon.

8. like the 7th said optical lens of request terms, the relative dual side-edge that wherein should spread curved surface is between 0.3 millimeter to 1.5 millimeters.

9. like the 1st said optical lens of request terms, wherein the curvature of these diffusion curved surfaces is between 0.4 to 2.5.

10. like the 1st said optical lens of request terms, more comprise the plurality of fixed post, be arranged on this leaded light component.