CN209147014U - A kind of lens and LED lamp - Google Patents

Abstract

The utility model belongs to lighting technical field, disclose a kind of lens, including the lens matrix projected for light, and the multilayer control light portion for protruding from the lens matrix and being arranged with concentric circular fashion, the control light portion include the second curved surface close to the first surface at the center of the lens matrix and away from the center of the lens matrix；Still further provide a kind of LED lamp, including lamp body, the light source being fixed in the lamp body, positioned at the lamp body light emission side reflector and pedestal with the sealed bottom of the lamp body, further include being covered in the reflector close to the lens of described light source one end.The lens of the utility model use reflection multilayer structure, and a reflecting surface is divided into multiple non-interfering reflectings surface, convenient for control stray light, can effectively reduce dazzle value.LED lamp is using above-mentioned lens and using deep cylinder optical design simultaneously, and the lamp shielding angle of lamps and lanterns increases, and dazzle value reduces, and can effectively reduce the dazzle value of lamps and lanterns.

Description

A kind of lens and LED lamp

Technical field

The utility model relates to lighting technical field more particularly to a kind of lens and LED lamps.

Background technique

Lamp shielding angle is also known as shielding angle, refer to light source luminescent body most outer a little and lamps and lanterns light-emitting window edge line with pass through Angle between the horizontal line of light source light center.

Type unified glare value UGR (Unified Glare Rating) is for measuring the lighting device in Visual Environment The light of sending causes the psychological parameter of discomfort subjective response to human eye, and numerical value is higher, and the sense of discomfort caused by human eye is stronger, 28,25,22,19,16,13,10 7 grades of UGR value point, wherein UGR value 19 is to be comfortable on and uncomfortable boundary value.

LED downlight be a kind of widely used decorative lamp for illumination, be mainly used in market, supermarket, hotel, clothes shop, The places such as leisure center, household are able to maintain the moulded and style of building decoration, will not because of lamps and lanterns setting and destroy Original decoration style.In existing LED downlight, only one reflecting surface of lens, reflector is socketed in outside LED light source to LED The structure that light source emitted light is constrained and redistributed because reflector to the focusing light effect of reflection from lens light and Downlight directly under radiation modality, LED downlight exist more serious glare problem.

Utility model content

The utility model provides a kind of lens, which uses the structure with multilayer plane of refraction and reflecting surface, to light Light mixing processing is carried out, overcome the problems, such as and solves existing lamps and lanterns dazzle serious, can effectively reduce the dazzle of lamps and lanterns.

The utility model additionally provides a kind of LED lamp.

The utility model is to solve a kind of technical solution that its technical problem provides to be:

A kind of lens including the lens matrix projected for light, and protrude from the lens matrix and with concentric circles side The multilayer control light portion of formula setting, the control light portion include close to the first surface at the center of the lens matrix and away from described Second curved surface at the center of mirror matrix.

As an improvement of the above technical solution, the height in the control light portion is from the center of the lens matrix along lens matrix Radial direction successively increase.

As an improvement of the above technical solution, the first surface is plane of refraction.

As an improvement of the above technical solution, second curved surface is for the free form surface with inner total reflection characteristic or by squama The curved surface of laminated structure unit composition.

A kind of LED lamp, including lamp body, the light source being fixed in the lamp body, positioned at the lamp body light emission side it is anti- Light cup and pedestal with the sealed bottom of the lamp body, further include being covered in the reflector close to the upper of described light source one end State lens.

As an improvement of the above technical solution, the lamp body includes the radiator for placing the light source, described reflective The outer wall of cup is evenly arranged with multiple fixed feets along the axial direction of the reflector, and the fixed feet passes through screw with the radiator It locks, the mounting hole screwed in for the screw is provided on the radiator.

As a further improvement of the above technical scheme, the inner wall of the lamp body is provided with the cunning slid into for the fixed feet Slot.

As an improvement of the above technical solution, the outer wall of the reflector is equipped with multiple cards close to the side of the lens Hook, the lens are provided with the bayonet with grab engaging along the circumferential direction of the lens matrix.

As an improvement of the above technical solution, the inner wall of the reflector is smooth surface, frosting, by sclay texture list A kind of in the unicorn first curved surface of member composition, the sclay texture unit is free form surface or plane.

As an improvement of the above technical solution, the reflector is interior without leave close to one end of the lens to the lamp body Light emission side be gradually increased.

The advantageous effects of the utility model are: the lens that LED lamp uses include lens matrix, and are protruded from Mirror matrix and the multilayer control light portion being arranged with concentric circular fashion, control light portion include the first song close to the center of the lens matrix Face and the second curved surface away from the center of the lens matrix.Using reflection multilayer structure, a reflecting surface is divided into it is multiple, and Each reflecting surface is individually present, and is not interfere with each other, the size of lens can be done it is smaller, convenient for control stray light.And this is practical new The LED lamp of type is using deep cylinder optical design, and under identical lamps and lanterns size, length needed for lens reduces, the length of reflector Degree lengthens, and cutoff angle of a luminaire can reach 35 ° or more, and UGR value < 19 can effectively reduce the dazzle value of lamps and lanterns.

Detailed description of the invention

Illustrate the technical scheme in the embodiment of the utility model in order to clearer, it below will be to required in embodiment description Attached drawing to be used briefly describes.

Fig. 1 is the structural schematic diagram of the lens of the utility model one embodiment；

Fig. 2 is the exploded view of the LED lamp of the utility model one embodiment；

Fig. 3 is light distribution figure of the source light of this practical one embodiment after lens；

Fig. 4 is the structural schematic diagram of the lamp body of the utility model one embodiment；

Fig. 5 is the perspective view of the LED lamp of the utility model one embodiment.

Specific embodiment

It is carried out with reference to embodiments with technical effect of the attached drawing to the design of the utility model, specific structure and generation clear Chu is fully described by, to fully understand the purpose of this utility model, scheme and effect.It should be noted that in the feelings not conflicted The features in the embodiments and the embodiments of the present application can be combined with each other under condition.Furthermore used in the utility model it is upper, Under, the descriptions such as left and right be only in opposite figure for each component part mutual alignment relation of the utility model.

Fig. 1 is the structural schematic diagram of the lens of one embodiment, and lens 100 include the lens matrix 110 projected for light, And protrude from and with the multilayer control light portion that concentric circular fashion is arranged, control light portion includes close to the of the center of lens matrix 110 One curved surface 121 and the second curved surface 122 away from the center of lens matrix 110.

Lens matrix 110 is disc in the present embodiment, and light is projected through lens matrix 110.The height in light portion is controlled from saturating The center of mirror matrix 110 is successively increased along the radial direction of lens matrix 110.First surface 121 is plane of refraction, and the second curved surface 122 is Free form surface with inner total reflection characteristic or the curved surface being made of sclay texture unit, sclay texture unit are quadrangle Or hexagon.Setting haves three layers and controls light portion on lens matrix in the present embodiment, and the number of plies in control light portion can change according to demand.

Fig. 2 and Fig. 5 shows a kind of LED lamp, specially a kind of downlight of anti-dazzle, including lamp body 400, is fixed on lamp Light source 200 in body 400, positioned at lamp body 400 light emission side reflector 300, and the pedestal with the sealed bottom of lamp body 400 500, it further include the said lens 100 for being covered in reflector 300 and leaning on close to sources one end.Wherein light source 200 is COB light source.

Fig. 3 is light distribution figure of the source light of this practical one embodiment after lens.The light warp that light source 200 issues Lens matrix 110 is passed through after the refraction of first surface 121 and the total reflection of the second curved surface 122 to project.

The inner wall of reflector 300 be one of smooth surface, frosting, the unicorn first curved surface being made of sclay texture unit, And sclay texture unit is free form surface or plane.The inner wall of reflector is smooth surface in the present embodiment.The internal diameter of reflector 300 It is gradually increased from one end close to lens 100 to the light emission side of lamp body 400.

As depicted in figs. 1 and 2, the outer wall of reflector 300 is equipped with multiple grabs 310, lens close to the side of lens 100 100 are provided with the bayonet 111 of the same engaging of grab 310 along the circumferential direction of lens matrix 110, and reflector and lens can be made to be tightly fastened.

As shown in Figure 2 and Figure 4, lamp body 400 includes the radiator 410 for placing light source 200, the outer wall of reflector 300 Multiple fixed feets 320 are evenly arranged with along the axial direction of reflector 300, fixed feet 320 is locked by screw with radiator 410, dissipated The mounting hole 411 screwed in for screw is provided on hot device 410.The inner wall of lamp body 400 is also provided with the sliding slot slid into for fixed feet 320 420, it play the guiding role to fixed feet 320, to prevent fixed feet 320 with there is deviation in 411 assembling process of mounting hole.

Traditional TIR single layer mirror lens is inner total reflection formula lens, and light enters lens after superrefraction, is recycled Total reflection principle designs free curve, then projects lens by refraction principle；Only one reflecting surface, lens are larger, and light goes out It is inflexible to penetrate freedom degree.The utility model uses reflection multilayer structure, and a reflecting surface is divided into multiple, and each reflecting surface Be individually present, do not interfere with each other, the size of lens can be done it is smaller, convenient for control stray light；And the utility model is using deep cylinder Optical design, under identical lamps and lanterns size, because the length of lens shortens, the extended length of reflector, cutoff angle of a luminaire can Reach 35 ° or more, UGR < 19, the dazzle value of lamps and lanterns is effectively reduced.

Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered This is understood, in the spirit and scope for not departing from the utility model defined by described claims, in form and details On the utility model can be made a variety of changes, be the protection scope of the utility model.

Claims (10)

1. a kind of lens, which is characterized in that including the lens matrix projected for light, and protrude from the lens matrix and with The multilayer control light portion of concentric circular fashion setting, the control light portion include the first surface and back close to the center of the lens matrix Second curved surface at the center from the lens matrix.

2. lens according to claim 1, which is characterized in that the height in the control light portion is from the center of the lens matrix Radial direction along lens matrix successively increases.

3. lens according to claim 1, which is characterized in that the first surface is plane of refraction.

4. lens according to claim 1, which is characterized in that second curved surface is the freedom with inner total reflection characteristic Curved surface or the curved surface being made of sclay texture unit.

5. a kind of LED lamp, including lamp body, the light source being fixed in the lamp body, positioned at the lamp body light emission side it is reflective Cup and the pedestal with the sealed bottom of the lamp body, which is characterized in that further include being covered in the reflector close to the light Lens described in the claim 1-4 any one of source one end.

6. LED lamp according to claim 5, which is characterized in that the lamp body includes for placing dissipating for the light source The outer wall of hot device, the reflector is evenly arranged with multiple fixed feets along the axial direction of the reflector, and the fixed feet is the same as described Radiator is locked by screw, and the mounting hole screwed in for the screw is provided on the radiator.

7. LED lamp according to claim 6, which is characterized in that the inner wall of the lamp body is provided with sliding for the fixed feet The sliding slot entered.

8. LED lamp according to claim 5, which is characterized in that the outer wall of the reflector close to the lens one Side is equipped with multiple grabs, and the lens are provided with the bayonet with grab engaging along the circumferential direction of the lens matrix.

9. LED lamp according to claim 5, which is characterized in that the inner wall of the reflector be smooth surface, frosting, A kind of in the unicorn first curved surface be made of sclay texture unit, the sclay texture unit is free form surface or plane.

10. LED lamp according to claim 5, which is characterized in that the reflector it is interior without leave close to the lens One end is gradually increased to the light emission side of the lamp body.