CN201237100Y

CN201237100Y - LED light illumination device

Info

Publication number: CN201237100Y
Application number: CNU2008201249100U
Authority: CN
Inventors: 罗智玮; 徐运强; 朱翊麟
Original assignee: CREATE OPTO ELECTRONICS Co Ltd
Current assignee: CREATE OPTO ELECTRONICS Co Ltd
Priority date: 2008-07-07
Filing date: 2008-07-07
Publication date: 2009-05-13
Anticipated expiration: 2018-07-07

Abstract

The utility model provides a light-emitting diode (LED) lighting device including a light-emitting diode (LED) array and a holder, wherein, the LED array is formed by arranging a plurality of LEDs in a certain pattern according to requirements; the holder is sealed and covers the front periphery of the LED array for being proof against water and protecting the LED array; on the holder, a hole-slot array is arranged on a corresponding panel facing the LED array; and a plurality of 2nd lens used with the LEDs are utilized, correspondingly nested in the hole-slots of the hole-slot array and combined into a whole to form a 2nd lens array, so that the LED light generated by the LED array can project outwards through the 2nd lens array. The structure has a plurality of efficiencies such as loss reduction in the process, efficient illumination improvement, easy assembly, optical efficiency increase, use efficiency enhancement and the like.

Description

Light emitting diode lighting device

Technical field

The utility model relates to a kind of lighting device, relates in particular to a kind of light emitting diode (LED) lighting device.

Background technology

Utilize light emitting diode (light-emitting diode, abbreviation LED) light source as the lighting device has been prior art, and application is quite extensively as flashlight, desk lamp, car light, headlight and tail-light group, street lamp, or the auxiliary lighting apparatus of other electronic products such as camera flashlamp, scanning illuminating light source device etc., its mostly be to use a plurality of light emitting diodes (LED) to form array as light source, and above-mentioned led array is meant a plurality of LED is arranged in a certain form (pattern) according to the needs of lighting device, as the lines arrangement, matrix is arranged, circular concentric arrangement etc., but do not limit above-mentioned arrangement; And a light emitting diode (LED) comprises basically: a pedestal is in order to carrying LED crystal grain and make LED crystal grain external power supply, luminous one or several LED crystal grain, and one or more layers cover type lenticular body (coverl ens) after conduction by the translucent resin forming materials, generally be commonly referred to as first lens of LED, be packaged into a LED assembly (LED assembly in order to the outside that is coated on said base and LED crystal grain, in the utility model, be called for short LED), during use, the light that led chip sends throws outwards through first lens again.

In the application of LED, user demand and condition that the lighting device of different purposes is had nothing in common with each other, as flashlight, require collimated light beam and projection far away, the general requirement of desk lamp and tail-light group is in certain distance and area intraoral illumination degree is enough and even (but not dazzling), it is enough that headlight generally requires to throw certain distance and area and illuminance, enough and the light projection scope of requiring street lamp at a segment distance intraoral illumination degree preferably can contain about 3: 1 rectangular area of a length-width ratio (street lamp approximately at interval 30 meters set up and highly about 6～20 meters), and be to make the light of LED light or the formed led array of several LED can meet the lighting need for equipment of above-mentioned different purposes, when using LED as light source, each LED is except having had the first basic lens on encapsulating structure, place, the place ahead (being the place ahead of LED light projecting direction) at LED generally all disposes one second lens again, to promote the service efficiency of LED light, promptly increase effective lighting degree (illumination unit: 1ux=1m/m ²) and reduce process loss, or adjust the irradiated area and the illuminance uniformity thereof of LED light; And all can the production process loss when passing any medium because of light, as being absorbed by medium or being reflected by interface (between two media), can reduce the effective lighting degree relatively, and then influence its service efficiency, therefore, above-mentioned second lens generally are to utilize optical glass or optics plastic material to make with the reduction process loss, and can be by accurate mould model technology or plastic rubber ejaculate molding technology, but be not restricted to this, on second lens, to make the optical surface wanted to promote the optical efficiency of second lens; But optical glass or optics plastic material material cost improve relatively, be not suitable for making optical element with large volume, and big more or optical surface more for a long time when the volume of optical element, make its precision die moulding process or plastic rubber ejaculate molding technology the mould that must use and frock thereof difficulty relatively just, be unfavorable for outputization.

Again in utilizing the application technology of light emitting diode (LED) at present as light source, as be applied to lighting devices such as flashlight, desk lamp, car light, headlight and tail-light group, street lamp, must have water-proof function to avoid damage because of light emitting diode (LED) reaches relevant circuit accessory (as the circuit board in order to bearing LED), therefore major part be provided with a lampshade (outer cover) to reach the waterproofing protection effect in addition again in the meeting of the periphery of the LED and second lens thereof; Yet, because the volume of described lampshade (outer cover) is generally bigger, lampshade (outer cover) as common outdoor street lamp, therefore if directly utilize optical glass or optics plastic material to make described lampshade (outer cover), then not only do not meet economic principle and carbon reduction demand, and be processed with suitable degree of difficulty and be difficult to effective keyholed back plate; And if make described lampshade (outer cover) with general glass or plastic material, then LED light at least must be through the back just outwards projection again of second lens and lampshade (outer cover), this moment, its process loss increased (light of general glass or plastic material consumes about 8～15%) relatively, the effective lighting degree promptly reduces relatively, has a strong impact on the service efficiency of described lighting device.

As from the foregoing, be in the application technology of light source with light emitting diode (LED), develop that a kind of process loss is little, effective lighting degree height, manufacturing and assembling easily and the low lighting device of cost, its necessity and urgency are arranged really.

Summary of the invention

Main purpose of the present utility model is the defective that overcomes above-mentioned prior art, and a kind of light emitting diode lighting device is provided.

For above-mentioned purpose and other purpose, the utility model provides a kind of light emitting diode (LED) lighting device, it comprises a light emitting diode (LED) array (array) and an outer cover (holder), wherein, described led array is to utilize a plurality of light emitting diodes (LED) and arrange formation with a certain form (pattern) according to need; Described outer cover be seal closure be located at led array periphery, the place ahead with waterproof and protect led array; wherein; the described outer respective panels face that covers in the face of led array is provided with a hole slot array; and second lens (2nd lens) that utilize a plurality of cooperated with LED to use are corresponding respectively is embedded in each hole slot of hole slot array and is combined into one to form one second lens arra; the LED light that led array is produced can outwards throw through described second lens arra; to reduce the process loss of LED light; improve the effective lighting degree of LED light, and promote the optical efficiency and the service efficiency of LED lighting device.

Wherein, the form (pattern) of set hole slot array does not limit on the described outer cover, it can corresponding matching design according to the form of led array, each LED sent in the led array light can correspondingly outwards be throwed through corresponding second lens that are embedded of institute in the described hole slot array, with the effective lighting degree of raising LED light, and the optical efficiency and the service efficiency of promoting LED lighting device.

Wherein, the shape of the hole slot of set hole slot array does not limit on the described outer cover, it is matching design according to the corresponding external form that is embedded second lens in hole slot, make mould design, optical surface design and the production and processing of described second lens can be simple relatively, the assembling operation that helps promoting the optical efficiency of second lens and simplify LED lighting device.

The beneficial effects of the utility model are, process loss is little, effective lighting degree height, manufacturing and assembling easily and cost low.

Description of drawings

Fig. 1 is the side cross-sectional schematic of the utility model LED lighting device one embodiment;

Fig. 2 is a schematic top plan view (the hole slot array on the outer cover is not embedded second lens as yet) embodiment illustrated in fig. 1;

Fig. 3 is a schematic top plan view (its second lens arra is corresponding cooperation one to one with led array) embodiment illustrated in fig. 1;

Fig. 4 is a schematic top plan view (its second lens arra is non-corresponding one to one cooperation with led array) embodiment illustrated in fig. 1;

Fig. 5 is the side cross-sectional schematic of another embodiment of the utility model LED lighting device.

Description of reference numerals: 1,2-light emitting diode (LED) lighting device; The 10-LED array; 11-light emitting diode (LED); 12-first lens; 13-lens barrel (barrel); The 20-outer cover; 21-respective panels face; 22-hole slot array; The 23-hole slot; 30-second lens (2ndlens); 31-second lens arra; The 32-flange.

The specific embodiment

Below in conjunction with accompanying drawing, to this novel above-mentionedly is described in more detail with other technical characterictic and advantage.

Referring to figs. 1 to Fig. 3, its be respectively the side of the utility model LED lighting device one embodiment analyse and observe and outer cover on be not embedded or be embedded the schematic top plan view of second lens as yet.The utility model is a kind of light emitting diode (light-emitting diode is called for short LED) lighting device 1, mainly comprises a led array (array) 10 and an outer cover (holder) 20; Wherein, the shape of described LED lighting device 1, assembling kenel and size do not limit, can be according to the different needs of application matching design, as providing different designs at different application such as the auxiliary lighting apparatus of flashlight, desk lamp, car light, headlight and tail-light group, street lamp or other electronic products such as camera flashlamp, scanning illuminating light source device, and present embodiment is to be example explanation with street lamp or ware, but non-in order to restriction the utility model.

Described led array 10 is to utilize a plurality of light emitting diodes (LED) 11 to arrange with a certain form (pattern) to form, wherein, the arrangement form of described led array 10 (pattern) does not limit, as the lines arrangement, matrix is arranged, circular concentric arrangement etc., its can be according to the different needs of application matching design, as at flashlight, desk lamp, car light, headlight and tail-light group, street lamp, or the auxiliary lighting apparatus of other electronic products such as camera flashlamp, different application such as scanning illuminating light source device etc. and the led array 10 of different shape is provided, and present embodiment is to be the example explanation with street lamp or ware as shown in Figure 1 to Figure 3, described led array 10 is a matrix arrangement form, but non-in order to restriction the utility model.Each light emitting diode 11 is made up of led chip (not shown) and first lens (1st lens or cover lens) 12, the light that led chip is sent outwards throws as shown in Figure 1 through first lens 12, as for encapsulating structure, package assembly, the lighting kenel of light emitting diode 11, process and the circuit design that matches etc. does not limit, can need design with use or structure, and because described design is to utilize prior art to reach, so do not repeat them here.

Described outer cover 20 is that seal closure is located at the periphery, the place ahead of led array 10 to provide the waterproofing protection effect to described led array 10, shape, assembling kenel and size etc. as for outer cover 20 do not limit, can be according to the different needs of application matching design, outer cover 20 can utilize plastic rubber ejaculate molding technology to make the integrated formed structure body as shown in Figure 1 as described, the fabricated structure body that many things of also can serving as reasons are formed (figure does not show); Described again outer cover 20 comprises a respective panels face 21 at least to face led array 10, and on described respective panels face 21, be provided with a hole slot array 22, as shown in Figure 2, described hole slot array 22 is to utilize a plurality of hole slots 23 to arrange with a certain form (pattern) to form, as shown in Figure 2, wherein, the arrangement form of described hole slot array 22 (pattern) does not limit, as the lines arrangement, matrix is arranged, circular concentric arrangement etc., its can be according to the different needs of application matching design, as at flashlight, desk lamp, car light, headlight and tail-light group, street lamp, or the auxiliary lighting apparatus of other electronic products such as camera flashlamp, different application such as scanning illuminating light source device etc. and the hole slot array 22 of different arrangement form is provided, and present embodiment as shown in Figure 1 to Figure 3, it is to be the example explanation with street lamp or ware, described hole slot array 22 is a matrix arrangement form, and it is form symmetry status, but non-in order to restriction the utility model with led array 10.

Second lens (2nd lens) 30 that utilize a plurality of cooperation light emitting diodes (LED) 11 to use again are corresponding respectively to be embedded in each hole slot 23 of hole slot array 22, and with outer cover 20, especially described respective panels face 21, be combined into one, make a plurality of second lens 30 on respective panels face 21, form one second lens arra 31; Wherein, the external form of described second lens (2nd lens) 30 and size are to cooperate hole slot 23 designs so that it can correspondence is embedded in hole slot 23 and is combined into one, and its combination does not limit, and be can be by the viscose glue bonding fixing and reach waterproof effect; Optical surface design as for second lens 30 does not limit, its can be according to the different needs of application matching design, as providing the design of different optical face at different application such as the auxiliary lighting apparatus of flashlight, desk lamp, car light, headlight and tail-light group, street lamp or other electronic products such as camera flashlamp, scanning illuminating light source device, and present embodiment such as Fig. 1, shown in Figure 3 be to be example explanation with street lamp or ware, but non-in order to restriction the utility model.

Again, the arrangement form (pattern) of set hole slot array 22 does not limit on described outer cover 20 or the respective panels face 21, corresponding matching is designed to the best with the arrangement form of foundation led array 10 for it, so that formed second lens arra 31 also with led array 10 corresponding matching as shown in Figure 3, Figure 4, to reach in second lens arra 31 function of use of each second lens 30.

Matching relationship between above-mentioned led array (array) 10, hole slot array 22 and second lens arra 31 of the utility model, can need and do other change designs according to actual use, for example: each light emitting diode (LED) 11 sets up the position not limit only to set up a light emitting diode (LED) 11 in the led array (array) 10, set up on the position as utilizing two light emitting diodes (LED) 11 to be built up in one in the led array (array) 10 side by side, and employed light emitting diode (LED) 11 is not restricted to same specification yet in the led array (array) 10; Each hole slot 23 is not restricted to same shape or size in the described again hole slot array 22, with Fig. 2, Fig. 3 is the example explanation, as two adjacent hole slots 23 being communicated with into big hole slot (promptly the twice of original approximately hole slot 23 is big), utilize second lens 30 (promptly the twice of original approximately second lens 30 is big) of an equal sizes to be embedded in described big hole slot again, certainly if each hole slot 23 is designed to same shape or size (being same specification) as Fig. 2 in the hole slot array 22, shown in Figure 3, then second lens 30 also can be designed to same specification, help the output manufacturing of second lens 30, can reduce production costs relatively; And for example shown in Figure 3, be corresponding matching relationship one to one in second lens arra 31 in each second lens 30 and the led array 10 between each light emitting diode (LED) 11, just at each second lens 30 in second lens arra 31, in led array 10, be equipped with a light emitting diode (LED) with corresponding one to one cooperation as shown in Figure 3, but above-mentioned corresponding one to one matching relationship does not limit, corresponding one to one part second lens 30 in second lens arra 31 of 11 of each light emitting diodes (LED) in led array 10 as shown in Figure 4, second lens that this moment, second not corresponding with light emitting diode (LED) 11 lens 30 can utilize general glass or plastic cement to make substitute body (can be identical shaped with second lens 30) and are embedded in pricking groove 23 replacing the second regular lens 30, with the usage quantity that reduces by second lens 30 to reduce material cost.When then using, the light that led array 10 each light emitting diode (LED) 11 are sent all can correspondingly outwards throw through second lens 30 in second lens arra 31 again, the effective lighting degree of LED light be can improve, and the optical efficiency and the service efficiency of LED lighting device 1 promoted.

Because the utility model light emitting diode (LED) lighting device 1 is that a hole slot array 22 is set on outer cover 20 or respective panels face 21 earlier, utilize again that a plurality of second lens 30 are corresponding respectively to be embedded in each hole slot 23 of hole slot array 22, therefore outer cover 20 or respective panels face 21 are to separate making with second lens 30, and the shape of the hole slot 23 of hole slot array 22 is matching design basically according to the corresponding external form that is embedded second lens 30 in hole slot 23, therefore, the design of the mould of employed second lens 30 of the utility model, making and production and processing can be simple and easy relatively, and the optical surface of second lens 30 also can simple and easyly be reached design optimization, help promoting the optical efficiency of second lens 30, and simplify the assembling operation of the utility model LED lighting device 1 relatively.

With reference to shown in Figure 5, it is the side cross-sectional schematic of another embodiment of the utility model LED lighting device again.The main difference of the LED lighting device 2 of present embodiment and the LED lighting device 1 of last embodiment is to be: can link into an integrated entity by a lens barrel 13 between the light emitting diode of present embodiment (LED) 11 and second lens 30, wherein, on the ring periphery of described second lens 30 a predeterminable flange 32 for the corresponding engaging of last peristoma portion of lens barrel 13, so that but second lens, 30 simple combination are at the upper end of lens barrel 13 and form a light emitting diode (LED) module, and after combination is finished, connection effect by described lens barrel 13, can make light emitting diode (LED) 11 aim at contraposition simultaneously automatically with second lens 30, the light that led chip is sent is projected to the outwards projection again of second lens 30 through first lens 12 and by lens barrel 13 inside, helps simplifying follow-up assembling operation; And when assembling, second lens 30 of described module still can be embedded in the hole slot 23 of correspondence; Again with technical field of the present utility model, light emitting diode (LED) module of being made up of light emitting diode (LED) 11, lens barrel 13 and second lens 30 in the present embodiment belongs to prior art, thus in this no longer describe in detail described lens barrel 13 thin portion structure and and light emitting diode (LED) 11, second lens 30 between combination.

From the above mentioned, the LED light that each light emitting diode (LED) 11 is sent in the led array 10 can pass through second lens 30 of described second lens arra 31 and outwards throw, because described outer cover 20 has the dual-use function of second lens 30 and waterproofing protection at least concurrently, therefore can effectively overcome existing LED lighting fixture and establish a protection causes the luminosity relative loss factor with Transparent lamp shade shortcoming in the outside of second eyeglass again; Again owing to be to separate manufacturing to be assembled again between described second lens 30 and the outer cover 20, therefore can avoid directly making the integral type outer cover that comprises second lens and outer cover with the optical glass or the plastic material of second lens, cause material cost to increase, make and be difficult for and the uppity problem of the second lens accuracy, thus can reach that process loss reduces, the effective lighting degree improves, assembling easily, multi-efficiencies such as optical efficiency lifting and service efficiency enhancement.

More than explanation is novel just illustrative for this, and nonrestrictive, those of ordinary skills understand; under the situation of the spirit and scope that do not break away from following claims and limited, can make many modifications, change; or equivalence, but all will fall in this novel protection domain.

Claims

1, a kind of light emitting diode lighting device comprises a light emitting diode matrix and an outer cover, it is characterized in that:

Described light emitting diode matrix is to be arranged by a plurality of light emitting diodes to form;

Described outer cover is located at the periphery, the place ahead of described light emitting diode matrix, described outer cover comprises a respective panels face, described respective panels face is in the face of described light emitting diode matrix, and described respective panels face is provided with a hole slot array, described hole slot array is arranged by a plurality of hole slots and is formed, and the corresponding respectively described light emitting diode of a plurality of second lens is embedded in the hole slot of described hole slot array and with described respective panels face and is combined into one; Described a plurality of second lens form one second lens arra on described respective panels face.

According to the described light emitting diode lighting device of claim 1, it is characterized in that 2, the arrangement form of described light emitting diode matrix is matching design according to the needs of the application of light emitting diode lighting device.

According to the described light emitting diode lighting device of claim 1, it is characterized in that 3, the arrangement form of described light emitting diode matrix is a kind of during lines arrangement, matrix arrangement or circular concentric are arranged.

According to the described light emitting diode lighting device of claim 1, it is characterized in that 4, described hole slot array and described light emitting diode matrix form symmetry status.

According to the described light emitting diode lighting device of claim 1, it is characterized in that 5, described light emitting diode matrix is to utilize a plurality of described light emitting diodes identical or specification inequality to arrange to form.

According to the described light emitting diode lighting device of claim 1, it is characterized in that 6, the hole slot in the described hole slot array has shape identical or inequality and size.

According to the described light emitting diode lighting device of claim 1, it is characterized in that 7, described a plurality of second lens that are embedded in the hole slot of hole slot array are same size or specification inequality.

8, according to the described light emitting diode lighting device of claim 1, it is characterized in that, fixing between described second lens and the described hole slot by the viscose glue bonding.

According to the described light emitting diode lighting device of claim 1, it is characterized in that 9, between described light emitting diode and corresponding described second lens lens barrel is set, described light emitting diode and described second lens are linked into an integrated entity by described lens barrel.

10, according to the described light emitting diode lighting device of claim 9, it is characterized in that, the ring periphery of described second lens is provided with a flange, the corresponding engaging of last peristoma portion of described flange and described lens barrel, and described second set of lenses is combined in the upper end of described lens barrel.