CN103604094A

CN103604094A - LED secondary lens device capable of generating multiple beam angles

Info

Publication number: CN103604094A
Application number: CN201310583910.2A
Authority: CN
Inventors: 程世友
Original assignee: Zhejiang Jingri Lighting Technology Co Ltd
Current assignee: Zhejiang Jingri Lighting Technology Co Ltd
Priority date: 2013-11-20
Filing date: 2013-11-20
Publication date: 2014-02-26

Abstract

The invention discloses an LED secondary lens device capable of generating multiple beam angles. The LED secondary lens device comprises an LED lamp bead, a total internal reflection lens and a light distribution lens, wherein the light distribution lens is arranged in the total internal reflection lens; a lens array used for subjecting light emitted out from the LED lamp bead to zoned light distribution processing is arranged on the total internal reflection lens. Light emitted by the lens array is subjected to zoned light distribution, and transmitted light flux of each zone is enabled to be distributed according to a certain rule by adjustment of space area of each light emitting zone; meanwhile, surface curvature distribution of fly's-eye lenses on the light emitting surface of each zone is adjusted, so that beam angles of light projected from each zone are different and regular distribution can be realized. The LED secondary lens device is particularly suitable for uniform wall-washing illumination or illumination occasions with similar asymmetric light distribution requirements, free of dark zones close to a place of a wall wash lamp and good in light uniformity.

Description

A kind of LED secondary lens device that can produce a plurality of beam angles

Technical field

The present invention relates to illuminating lamp technical field, relate in particular a kind of LED secondary lens device that can produce a plurality of beam angles.

Background technology

At present, LED is widely used in numerous lighting fields such as indoor and outdoors function lighting, decorative lighting and Landscape Lighting as novel environmental protection light source, the light distribution of sending due to LED is similar to lambert's body, can not meet the requirement of particular place to light source light distribution, only have the luminous intensity distribution of this nearly lambert's type is distributed and carries out secondary optics processing, allow the light distribution after processing can realize the light scenes such as most of function lightings, Landscape Lighting, decorative lighting.For example, patent publication No. is that CN 202266983U, the 2012.06.06 of open day of patent disclose Chinese utility model patent and disclose a kind of LED optical lens, comprise circuit matrix, LED optical lens and LED light source, LED optical lens and LED light source are all arranged on circuit substrate, described LED optical lens comprises matrix and optical surface body, the groove that the bottom surface of described matrix upwards offers storage tank and is connected with storage tank, described LED light source is contained in storage tank.

But, existing LED secondary lens is when being applied to wall lamp, the light that it irradiates out, on wall, there is obvious dark space, especially near the part of wall lamp, fairly obvious, secondly, its light emitting is even not to the illumination of wall, and especially a plurality of wall lamps match, when being combined into different colours light.

Summary of the invention

The object of this invention is to provide for the deficiencies in the prior art part, a kind of LED secondary lens device that can produce a plurality of beam angles is provided, can overcome the deficiencies in the prior art part, it is simple in structure, it is easy, cheap to make, operating efficiency is high; The illumination occasion that is particularly suitable for evenly washing wall illumination or has similar asymmetric smooth distributed needs, the place of close wall lamp does not have obvious dark space, light good evenness.

In order to solve the problems of the technologies described above, technical scheme of the present invention is as follows: a kind of LED secondary lens device that can produce a plurality of beam angles, comprises LED lamp pearl, total internal reflection lens and be arranged on the light-distribution lens in described total internal reflection lens; Described total internal reflection lens is provided with the lens arra that the light for described LED lamp pearl is sent carries out the processing of subregion luminous intensity distribution.

As preferably, described lens arra comprises transparent installing plate, the first lens array being arranged in by first lens, the second lens arra being become by the second lens arrangement and the 3rd lens arra that become by the 3rd lens arrangement.

As preferably, the surface curvature distribution of described first lens, the second lens and the 3rd lens is not etc.

As preferably, the radius of curvature linearity of described first lens, the second lens and the 3rd lens reduces.

As preferably, the radius of curvature ladder of described first lens, the second lens and the 3rd lens reduces.

As preferably, described first lens, the second lens and the 3rd lens are arranged on described transparent installing plate in the mode of rectangular array.

As preferably, described first lens array, the second lens arra and the 3rd lens arra width equate or width is stepped reduces or width linearity reduces.

As preferably, the one-body molded or separable assembled of described transparent installing plate and described total internal reflection lens.

As preferably, described transparent installing plate is provided with the first installing hole, the second installing hole and the 3rd installing hole for described first lens, the second lens and the 3rd lens are installed, and in described the first installing hole, the second installing hole and the 3rd installing hole, locking device is all installed.

As preferably, described locking device comprises the elasticity hang plate tilting laterally and is arranged on the jointed shaft on described elasticity hang plate.

Beneficial effect of the present invention is:

The light that the present invention sends lens devices carries out subregion luminous intensity distribution, allows the luminous flux in each district be certain rule and distributes, and can realize beam angle that each district casts out light different and can realize rule and distribute; Simple and compact for structure, operating efficiency is high, is particularly suitable for evenly washing wall illumination or has the illumination occasion of similar asymmetric smooth distributed needs, near the place of wall lamp, there is no obvious dark space, light good evenness.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the present invention is described further:

Fig. 1 is the structural representation of one embodiment of the invention;

Fig. 2 is array structure thereof figure;

Fig. 3 is locking device structure schematic diagram.

The specific embodiment

The following stated is only preferred embodiment of the present invention, not scope of the present invention is limited.

Embodiment, is shown in accompanying drawing 1,2,3, and a kind of LED secondary lens device that can produce a plurality of beam angles, comprises LED lamp pearl 1, total internal reflection lens 2 and be arranged on the light-distribution lens 3 in described total internal reflection lens 2, total internal reflection lens 2 full name are Total Internal Reflaction, are called for short TIR, and described total internal reflection lens 2 is provided with the lens arra 4 that the light for described LED lamp pearl 1 is sent carries out the processing of subregion luminous intensity distribution, TIR lens and fly eye lens array, fly eye lens array is lens arra 4, on TIR lens, for the light of TIR collimated being carried out to the lens arra 4 of luminous intensity distribution processing, be divided into a plurality of arrays, the curvature distribution on the fly's-eye lens surface of different arrays is different, in present embodiment, described lens arra 4 comprises transparent installing plate 401, the first lens array being arranged in by first lens 402, the second lens arra being arranged in by the second lens 403 and the 3rd lens arra being arranged in by the 3rd lens 404, one-body molded or the separable assembled of transparent installing plate 401 and described total internal reflection lens 2, described first lens array, the second lens arra and the 3rd lens arra width equate, also can steppedly reduce, reduce gradually.Described first lens 402, the second lens 403 and the 3rd lens 404 can be convex lens, can be also toroidal lens; Convex lens comprise base plate and spherical mirror; The curvature distribution of described first lens 402, the second lens 403 and the 3rd lens 404 is different, described first lens 402, the second lens 403 and the 3rd lens 404 are arranged on described transparent installing plate 401 in the mode of rectangular array, form compound eye array, respectively the exiting surface of lens is divided into three lens arras, or more lens arras, by the design of Simulation of TIR lens, make three lens arra amount of lights be certain rule and distribute, as described in the radius of curvature linearity of first lens 402, the second lens 403 and the 3rd lens 404 reduce; The radius of curvature ladder of described first lens 402, the second lens 403 and the 3rd lens 404 reduces, in present embodiment, first lens 402, the second lens 403 and the 3rd lens 404 are convex lens, the lens surface of its lens is sphere or Random Curved Surface Designing, the positive camber profile of same group of lens is identical, guarantees that the beam angle penetrating on same group of lens curved surface surface is consistent; Pass through optimal design, allow the positive camber profile between lens curved surface is different on the same group, and presenting certain rule distributes, the emerging beam angle that guarantees each output optical zone is different, through first lens 402, the second lens 403 and the 3rd lens 404 light out, mutually intersect, make light respectively evenly.

First lens 402, the second lens 403 and the 3rd lens 404 can be bonded and fixed on transparent installing plate 401, still, and in work after a period of time, because the reasons such as heating can cause the firm not of bonding, for this reason, we have improved the fixing mode of installing, described transparent installing plate 401 is provided with for the first installing hole, the second installing hole and the 3rd installing hole of described first lens 402, the second lens 403 and the 3rd lens 404 are installed, the first installing hole, the second installing hole and the 3rd installing hole are polygonal hole, wherein, take rectangular opening as good, in described the first installing hole, the second installing hole and the 3rd installing hole, locking device 5 is all installed, described locking device 5 comprises the elasticity hang plate 501 tilting laterally and is arranged on the jointed shaft 502 on described elasticity hang plate 501, elasticity hang plate 501 becomes 5 ° of angles with vertical plane, elasticity hang plate 501 is hinged on the first installing hole by jointed shaft 502, in the second installing hole and the 3rd installing hole, and, jointed shaft 502 is arranged on the middle part of elasticity hang plate 501, elasticity hang plate 501 is made by spring steel plate, thickness 0.1-0.2mm, first lens 402, the second lens 403 and the 3rd lens 404 are put into the first installing hole, in the time of in the second installing hole and the 3rd installing hole, lens are exerted pressure to inclination hang plate 501, make hang plate 501 to rotate around jointed shaft, its lower end is laterally rotated, upper end slopes inwardly lens is realized and being clamped, such structure, it is very easy to make to install, and be not subject to warming-up effect, very firm, guarantee working normally and efficiently of whole lens.

More than explanation is only explanation of the invention, make those of ordinary skills' can completely implement this programme, but be not limitation of the present invention, those skilled in the art can make to the present embodiment the modification that there is no creative contribution as required after reading this description, and these are all not creative modifications.But as long as within the scope of claim of the present invention, be all subject to the protection of Patent Law.

Claims

1. can produce a LED secondary lens device for a plurality of beam angles, comprise LED lamp pearl (1), total internal reflection lens (2) and be arranged on the light-distribution lens (3) in described total internal reflection lens (2); It is characterized in that: described total internal reflection lens (2) is provided with the lens arra (4) that the light for described LED lamp pearl (1) is sent carries out the processing of subregion luminous intensity distribution.

2. a kind of LED secondary lens device that can produce a plurality of beam angles according to claim 1, is characterized in that: described lens arra (4) comprises transparent installing plate (401), the first lens array being arranged in by first lens (402), the second lens arra being arranged in by the second lens (403) and the 3rd lens arra being arranged in by the 3rd lens (404).

3. a kind of LED secondary lens device that can produce a plurality of beam angles of stating according to claim 2, is characterized in that: the surface curvature distribution of described first lens (402), the second lens (403) and the 3rd lens (404) is not etc.

4. a kind of LED secondary lens device that can produce a plurality of beam angles according to claim 2, is characterized in that: the radius of curvature linearity of described first lens (402), the second lens (403) and the 3rd lens (404) reduces.

5. a kind of LED secondary lens device that can produce a plurality of beam angles according to claim 2, is characterized in that: the radius of curvature ladder of described first lens (402), the second lens (403) and the 3rd lens (404) reduces.

6. a kind of LED secondary lens device that can produce a plurality of beam angles according to claim 2, is characterized in that: described first lens (402), the second lens (403) and the 3rd lens (404) are arranged on described transparent installing plate (401) in the mode of rectangular array.

7. a kind of LED secondary lens device that can produce a plurality of beam angles according to claim 2, is characterized in that: described first lens array, the second lens arra and the 3rd lens arra width equate or width is stepped reduces or width linearity reduces.

8. a kind of LED secondary lens device that can produce a plurality of beam angles according to claim 2, is characterized in that: the one-body molded or separable assembled of described transparent installing plate (401) and described total internal reflection lens (2).

9. according to a kind of LED secondary lens device that can produce a plurality of beam angles described in claim 2 or 3 or 4 or 5 or 6 or 7, it is characterized in that: described transparent installing plate (401) is provided with the first installing hole, the second installing hole and the 3rd installing hole for described first lens (402), the second lens (403) and the 3rd lens (404) are installed, and in described the first installing hole, the second installing hole and the 3rd installing hole, locking device (5) is all installed.

10. a kind of LED secondary lens device that can produce a plurality of beam angles according to claim 8, is characterized in that: described locking device (5) comprises the elasticity hang plate (501) tilting laterally and is arranged on the jointed shaft (502) on described elasticity hang plate (501).