CN201593754U

CN201593754U - LED combined optical lens

Info

Publication number: CN201593754U
Application number: CN2010200035421U
Authority: CN
Inventors: 陈国良; 王文明
Original assignee: ZHEJIANG YAOZHONG TECHNOLOGY Co Ltd
Current assignee: ZHEJIANG YAOZHONG TECHNOLOGY Co Ltd
Priority date: 2010-01-13
Filing date: 2010-01-13
Publication date: 2010-09-29
Anticipated expiration: 2020-01-13

Abstract

The utility model relates to an LED combined optical lens, which comprises a transparent body provided with an inner curved surface and an outer curved surface, wherein the inner curved surface is used for gathering light, and the outer curved surface is used for diffusing light. The outer curved surface is sequentially formed by a first light diffusing surface, a second light diffusing surface, a third light diffusing surface and a fourth light diffusing surface which surround a center light diffusing surface, wherein the first light diffusing surface is connected with the center light diffusing surface through a transitional arc surface. The inner curved surface is formed by connecting first light gathering surfaces and second light gathering surfaces, and the first light gathering surfaces and the second light gathering surfaces are respectively arranged in pairwise symmetry. Because of combining a plurality of gathering lens units and diffusing lens units, the LED combined optical lens is capable of matching with a single large-power LED light source to generate even surface light sources and soft luminous light rays with increased light intensity, and achieving obvious effects of realizing evenness and comfortableness of light distribution, effectively eliminating blaze, light ray radiation shadow areas and the like. Simultaneously, the LED combined optical lens remarkably improves the effects of reducing light loss and reasonably arranging light source radiation areas.

Description

A kind of LED combined optical lens

(1) technical field

The utility model relates to a kind of LED combined optical lens.

(2) background technology

Under and the background that environmental pollution is serious day by day in short supply in global energy, with the led light source (light-emitting-diode) of energy-saving and environmental protection, efficient, based semiconductor principle of luminosity that long service life is celebrated with and application surface facing market prospects greatly.But because led light source power is little in the past, light efficiency is low, price is high, the life-span is short etc., and the not high factor of the efficiency of light energy utilization, be mainly used in traditional signal indication and family expenses flashlight low side field, influence and limited its development and popularization, so poly-development and the commercial application thereof of loosing the combination optical mirror of great power LED, particularly LED seems more urgent and important.

See to such an extent that LED optical lens mirror is generally compound lens independent or a plurality of combination of light sources on the existing market.The former is limited because of its reverberation angle, does not reach range of exposures and light loss is serious, and what present is the spot light of a dazzling and hot spot.And major defects such as light source dispersion, coincidence and light efficiency are low can appear in the compound lens of the latter because of making up with a plurality of led light sources, have influenced the effect of using, and have not reached actual demand.

Chinese patent CN101571259LED has announced a kind of lens, the end face that this utility model comprises the baseplane and sets out and upwards draw in certainly gradually from the edge, baseplane, and described end face comprises the aspheric surface and the curved surface of smooth connection, described curved surface is provided with depressed part.Remove the inconvenience that needs in the prior art in the processing that ad hoc multi-angle installed surface or angle adjusting mechanism bring from, simplified the structure, can reach good luminous intensity distribution performance, be convenient to use, and improved light utilization, under the prerequisite that adopts suitable parameter, Luminaire efficiency is more than 90%.

(3) utility model content

Technical problem to be solved in the utility model is to provide a kind of and can cooperates with single high-power LED light source, and make its can be uniformly, the area source of irradiation radially, can reduce light loss effectively, improve the poly-combined optical lens that looses of LED of light extraction efficiency and irradiated area.

A kind of LED combined optical lens, include a transparent bodies, described transparent bodies has the negative camber that is used for optically focused and is used for the positive camber of astigmatism, described positive camber is looped around center astigmatism face and is constituted by the first astigmatic face, the second astigmatic face, the 3rd astigmatic face, the light face that scatters successively, and the first astigmatic face is connected through the transition cambered surface with the astigmatic face in center; Described negative camber is connected and composed by first caustic surface and second caustic surface, and first caustic surface and second caustic surface are symmetrical arranged respectively in twos.

Further, the arc radius of the described first astigmatic face is 45mm, and the arc radius of the second astigmatic face is 30mm, the 3rd the astigmatism and arc radius be 25mm, the arc radius that scatters the light face is 40mm, and the arc radius of center astigmatism face is 30mm, and the arc radius of transition cambered surface is 23mm.

Further, the arc radius of first caustic surface is 45mm, and length is 30mm; The arc radius of second caustic surface is 28mm, and length is 51mm.

It is circular that described transparent bodies is generally.The poly-combined optical lens that looses of the present utility model is shaped through precision optical instrument by the quartzy material of high brightness.

The utility model is owing to adopt the combination of a plurality of poly-, diffusing lens units, can cooperate with single high-power LED light source and produce that uniform surface light source, light-emitting line are soft, luminous intensity increases, in the uniformity of luminous intensity distribution, comfortableness, effectively to eliminate aspect effects such as dazzling light and light irradiation blind area obvious.Simultaneously to the loss of light, reasonably arrange the light source irradiated area and all improve significantly.This compound lens can arbitrarily change beam angle according to the actual needs in addition, can reach the different occasions of led light source to irradiated area, visual effect, different requirement such as luminous.

(4) description of drawings

Fig. 1 is the structural representation of the described LED combined optical lens of embodiment.

Fig. 2 is the side view of the described LED combined optical lens of embodiment.

(5) specific embodiment

Below by embodiment the utility model is preferably specified, but protection domain of the present utility model is not limited thereto.

With reference to Fig. 1, Fig. 2, a kind of LED combined optical lens, include a transparent bodies, described transparent bodies has the negative camber that is used for optically focused and is used for the positive camber of astigmatism, described positive camber is looped around center astigmatism face 1 and is constituted by the astigmatic face of the astigmatic face of the first astigmatic face 7, second the 6, the 3rd 5, the light face 4 that scatters successively, and the first astigmatic face 7 is connected through transition cambered surface 8 with the astigmatic face 1 in center; Described negative camber is connected and composed by first caustic surface 3 and second caustic surface 2, and first caustic surface 3 and second caustic surface 2 are symmetrical arranged respectively in twos.

The arc radius of the described first astigmatic face 7 is 45mm, the arc radius of the second astigmatic face 6 is 30mm, and the arc radius of the 3rd astigmatic face 5 is 25mm, and arc radius that scatters light face 4 is 40mm, the arc radius of center astigmatism face 1 is 30mm, and the arc radius of transition cambered surface 8 is 23mm.The arc radius of first caustic surface is 45mm, and length is 30mm; The arc radius of second caustic surface is 28mm, and length is 51mm.

Claims

1. a LED combined optical lens includes a transparent bodies, it is characterized in that: described transparent bodies has the negative camber that is used for optically focused and is used for the positive camber of astigmatism,

Described positive camber is looped around center astigmatism face and is constituted by the first astigmatic face, the second astigmatic face, the 3rd astigmatic face, the light face that scatters successively, and the first astigmatic face is connected through the transition cambered surface with the astigmatic face in center;

Described negative camber is connected and composed by first caustic surface and second caustic surface, and first caustic surface and second caustic surface are symmetrical arranged respectively in twos.

2. according to the LED combined optical lens of claim 1, it is characterized in that: the arc radius of the described first astigmatic face is 45mm, the arc radius of the second astigmatic face is 30mm, the arc radius of the 3rd astigmatic face is 25mm, arc radius that scatters the light face is 40mm, the arc radius of center astigmatism face is 30mm, and the arc radius of transition cambered surface is 23mm.

3. according to the LED combined optical lens of claim 1 or 2, it is characterized in that: the arc radius of first caustic surface is 45mm, and length is 30mm; The arc radius of second caustic surface is 28mm, and length is 51mm.