CN114352959A

CN114352959A - LED lighting mechanism

Info

Publication number: CN114352959A
Application number: CN202111666973.5A
Authority: CN
Inventors: 杨毅博; 万千里; 杨传银
Original assignee: Zhuhai Heqi Lighting Technology Co ltd
Current assignee: Zhuhai Heqi Lighting Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-04-15
Also published as: WO2023124285A1

Abstract

The LED illuminating mechanism comprises a lens assembly, a reflector assembly and an LED light source piece which are sequentially arranged, wherein the lens assembly comprises a plurality of lens pieces, the outer wall of each lens piece is provided with a first light transmitting area and a second light transmitting area, and the first light transmitting area and the second light transmitting area are both provided with a first protrusion of each lens piece; the reflector assembly comprises a plurality of reflector pieces, the inner reflecting wall of each reflector piece is a curved surface, and the inner reflecting wall protrudes to the outer side of the reflector assembly. The light that LED light source spare sent reflects through the reflector subassembly earlier, and the back is refracted through the lens subassembly and is diverged, sets up the first salient of the same quantity and is equipped with first printing opacity district and second printing opacity district in the outer wall of lens spare to the reflection of light inner wall that sets up the reflector spare is the curved surface, thereby the light that makes LED light source spare send can disperse to wider scope, effectively uses the light that the light source sent, more can make through reflection, the light that the refraction is dispersed reduces light emitting area surface luminance, prevent dazzling.

Description

LED lighting mechanism

Technical Field

The invention relates to the technical field of lighting optics, in particular to an LED lighting mechanism.

Background

At present, the basic structure of an LED is an electroluminescent semiconductor material chip, silver glue or white glue is solidified on a support, then the chip and a circuit board are connected by silver wires or gold wires, then the periphery of the chip is sealed by epoxy resin, the effect of protecting an internal core wire is achieved, and finally a shell is installed, so the anti-seismic performance of the LED lamp is good, the application field relates to the aspects of daily household electrical and mechanical production of mobile phones, desk lamps, household electrical appliances and the like, in order to obtain a comfortable and high-quality lighting environment, in recent years, the standards for anti-glare of indoor lamps at home and abroad are strict, the standards for anti-glare of indoor lamps of European Union are strict, namely UGR is less than 19 and even lower, in 1995, the concept of anti-glare of lamps is provided by the international lighting committee, and the UGR is used as an index for evaluating the discomfort glare of the indoor lighting environment.

The existing LED lamps for indoor illumination, such as LED lamp tubes, in order to avoid the phenomenon that light is too strong and causes visual vertigo, a lampshade usually adopts a semitransparent material, an LED point light source is expanded into a surface light source, a light emitting surface is enlarged, glare is eliminated, a visual effect is sublimated, a considerable part of light emitted by the light source cannot be effectively used, effective illumination is reduced, an illumination angle is not well controlled, the requirement that UGR for indoor illumination is less than 19 is fundamentally difficult to achieve, in addition, the phenomenon of chromatic aberration and blue light can also be generated, and certain harm is caused to human eyes.

Now, can satisfy indoor lighting anti-dazzle LED lamps and lanterns, it is less that general application, the common anti-dazzle panel light product in the industry of present mainly adds the extrusion shaping edge crystal plate before the panel light of current general use, hot briquetting edge crystal plate, the method of micro-structure anti-dazzle membrane and rigging board, it is exactly that a grid is added to anti-dazzle panel light in front of the panel light in addition, the light of wide angle all blocks, above-mentioned anti-dazzle panel light, the light that the light source sent is considerable partly can't effectively be used, often can lose more than half power about, the structure is complicated, energy-conserving effect is not ideal.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide an LED illuminating mechanism which can effectively use the light emitted by a light source and avoid dazzling.

In order to achieve the above object, the present invention provides an LED lighting mechanism, which includes a lens assembly, a reflector assembly and an LED light source sequentially arranged, wherein the lens assembly includes a plurality of lens pieces, the outer wall of each lens piece is provided with a first light-transmitting area and a second light-transmitting area, the first light-transmitting area and the second light-transmitting area are both provided with first protrusions of the lens pieces, and the number of the first protrusions of the first light-transmitting area is equal to the number of the first protrusions of the second light-transmitting area; the reflector assembly comprises a plurality of reflector pieces, the inner reflecting wall of each reflector piece is a curved surface, and the inner reflecting wall protrudes to the outer side of the reflector assembly.

It is visible by above-mentioned scheme, the light that LED light source spare sent is earlier through reflector assembly reflection, back refracts through the lens subassembly and diverges, set up the first transparent zone and the second transparent zone of the first salient in the outer wall of lens spare of the same quantity, and set up the reflection of light inner wall of reflector spare and fully reflect to the lens subassembly and utilize for the curved surface in order to the light that the light source does not directly shine on optical lens's the internal surface, thereby the light that effectively uses the light source to send when making the light that LED light source spare sent can disperse to wider, more can make through the reflection, the light that the refraction is dispersed reduces light emitting area surface luminance, prevent dazzling.

Preferably, the reflecting inner wall is a parabolic rotating curved surface.

Preferably, the reflective inner wall is a spherical surface or an ellipsoidal surface.

Preferably, the reflective inner wall is provided with a parabolic rotating curved surface, two sides of the parabolic rotating curved surface are respectively provided with a spherical surface or an ellipsoid, and the reflective inner wall is formed by the parabolic rotating curved surface and the two spherical surfaces or the two ellipsoids.

Furthermore, the parabolic rotating curved surface is an arc and is connected with the spherical surface in a smooth transition mode.

Preferably, the reflective inner wall is provided with a spherical surface or an ellipsoidal surface, two sides of the spherical surface or the ellipsoidal surface are respectively provided with a parabolic rotating curved surface, and the spherical surface or the ellipsoidal surface and the two parabolic rotating curved surfaces form the reflective inner wall.

Furthermore, the parabolic rotating curved surface is an arc and is connected with the spherical surface or the ellipsoidal surface in a smooth transition mode.

Preferably, each first protrusion extends from the bottom of the lens member to the top of the lens member.

Preferably, in the first light-transmitting area, the length of each first protrusion is longer than the length of the first protrusion adjacent to the first protrusion and far away from the second light-transmitting area relative to the first protrusion; in the second light-transmitting area, the length of each first protrusion is longer than the length of the first protrusion adjacent to the first protrusion and far away from the first light-transmitting area relative to the first protrusion.

Preferably, the inner wall of each lens part is provided with a plurality of second protrusions, the second protrusions extend from one side of the lens part to the other side of the lens part, and the length of each second protrusion is longer than the length of the second protrusion adjacent to the second protrusion and far away from the LED light source part relative to the second protrusion.

Compared with the prior art, the invention has the beneficial effects that:

the light that LED light source spare sent reflects through the reflector subassembly earlier, and the back is refracted through the lens subassembly and is diverged, sets up the first transparent area and the second transparent area of the first salient in the outer wall of lens spare of the same quantity to the reflection of light inner wall that sets up the reflector spare is the curved surface, thereby the light that makes LED light source spare send can disperse to wider range, effectively uses the light that the light source sent, more can make through reflection, the light that the refraction is dispersed reduces light emitting area surface luminance, prevent dazzling.

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Drawings

The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived on the basis of the following drawings without inventive effort.

Fig. 1 is a structural sectional view of an embodiment of an LED lighting mechanism according to the present invention.

FIG. 2 is a block diagram of a lens assembly of an embodiment of an LED illumination mechanism according to the present invention.

FIG. 3 is a block diagram of another viewing angle of a lens assembly of an embodiment of an LED illumination mechanism according to the present invention.

Fig. 4 is a block diagram of a reflector assembly of an embodiment of an LED lighting mechanism according to the present invention.

The reference numbers illustrate: an LED illumination mechanism 100; a lens assembly 1; a mirror assembly 2; an LED light source element 3; a lens member 4; a first light-transmitting region 5; a second light-transmitting region 6; a first protrusion 7; a second protrusion 8; a mirror member 9; a reflective inner wall 10.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 3, the LED illumination mechanism 100 provided in this embodiment includes a lens assembly 1, a reflector assembly 2, and an LED light source 3, which are sequentially disposed, the lens assembly 1 includes a plurality of lens pieces 4, the lens pieces 4 are optical lenses, the outer wall of each lens piece 4 is provided with a first light-transmitting area 5 and a second light-transmitting area 6, and the first light-transmitting area 5 and the second light-transmitting area 6 are in smooth transition connection. In the present embodiment, the number of the lens members 4 is four, and the adjacent lens members 4 may be integrally connected or may be bonded to each other.

The first light-transmitting area 5 and the second light-transmitting area 6 are provided with first protrusions 7 of the lens member 4, and the number of the first protrusions 7 of the first light-transmitting area 5 is equal to the number of the first protrusions 7 of the second light-transmitting area 6.

Each first protrusion 7 extends from the bottom of the lens member 4 to the top of the lens member 4.

In the first light-transmitting regions 5, the length of each first protrusion 7 is longer than the length of the first protrusion 7 adjacent to the first protrusion and far away from the second light-transmitting region 6 relative to the first protrusion; in the second transparent region 6, the length of each first protrusion 7 is longer than the length of the adjacent first protrusion 7 and is far away from the first transparent region 5.

The inner wall of each lens part 4 is provided with a plurality of second protrusions 8, the second protrusions 8 extend from one side to the other side of the lens part 4, and the length of each second protrusion 8 is longer than that of the second protrusion adjacent to the second protrusion 8 and far away from the LED light source part 3 relative to the second protrusion.

The basal plane of the lens component 1 is a spherical surface, an ellipsoid surface, a parabolic rotating curved surface, a conical surface or a multi-pyramid surface, the extending direction of the first protrusion 7 is vertical to the extending direction of the second protrusion 8, the first protrusion 7 and the second protrusion 8 are both arc-shaped protrusions, and the diameter of the first protrusion 7 is equal to that of the second protrusion 8.

Referring to fig. 4, the mirror assembly 2 includes a plurality of mirror elements 9, and a reflective inner wall 10 of each mirror element 9 is a curved surface, and the reflective inner wall 10 protrudes to the outside of the mirror assembly 2. In this embodiment, the number of the reflector members 9 is four, and the adjacent reflector members 9 may be integrally formed and connected or may be adhered to each other

The reflective inner wall 10 is a parabolic surface of revolution.

The reflective inner wall 10 is a spherical surface or an ellipsoidal surface.

Preferably, the reflective inner wall 10 is provided with a parabolic rotating curved surface, two sides of the parabolic rotating curved surface are respectively provided with a spherical surface, one parabolic rotating curved surface and two spherical surfaces form the reflective inner wall 10, or the reflective inner wall 10 is provided with a parabolic rotating curved surface, two sides of the parabolic rotating curved surface are respectively provided with an ellipsoidal surface, one parabolic rotating curved surface and two ellipsoidal surfaces form the reflective inner wall 10, or the reflective inner wall 10 is provided with a spherical surface, two sides of the spherical surface are respectively provided with a parabolic rotating curved surface, one spherical surface and two parabolic rotating curved surfaces form the reflective inner wall 10, or the reflective inner wall 10 is provided with an ellipsoidal surface, two sides of the ellipsoidal surface are respectively provided with a parabolic rotating curved surface, and one ellipsoidal surface and two parabolic rotating curved surfaces form the reflective inner wall 10.

The parabolic rotating curved surface is an arc smooth transition connected with a spherical surface or an ellipsoid.

Referring to fig. 1 to 4, the light that LED light source spare 3 sent reflects through reflector subassembly 2 earlier, and then refracts through lens subassembly 1 and diverge, set up the first 7 first light-pervious areas 5 and the second light-pervious areas 6 of the first arch of the same quantity in 4 outer walls of lens spare, and set up the reflection of light inner wall of reflector spare 9 and be the curved surface, thereby the light that makes LED light source spare 3 send can disperse to wider range, the light that effectively uses the light source to send, more can make through the reflection, the light that the refraction was dispersed reduces light emitting area surface luminance, prevent dazzling.

The reflector member 9 is a "non-uniform reflective reflector" and is polished and aluminized to increase its reflectivity (typically, the reflectivity after polishing aluminizing can reach 92-95%). The light emitted by the LED light source component is irradiated on the reflecting surface of the reflector component 9 and is not uniformly reflected to the inner surface of the lens in a directional way. Light which is not directly irradiated on the inner surface of the optical lens by a light source is fully utilized (light irradiated on the side surface of the inner cavity by indoor lamps such as classroom lamps and the like in the market is blocked and cannot come out of the inner cavity) so as to reduce light loss, and primary light flux pre-allocation is performed for light distribution of the lens component.

By providing the first protrusions 7 and the second protrusions 8 as described above, the LED light sources 3 can be uniformly dispersed in the irradiation range for non-uniform distribution, and the light-emitting angle of the light emitted from the outer surface of the lens is controlled, i.e. an "optical shading angle" (generally, a grid or a lamp housing is used to form a "shading angle", which is called as a "physical shading angle" for distinction), so as to achieve the anti-glare effect. The anti-glare effect of the indoor lamp (classroom lamp) with the optical shading angle formed by accurate light distribution is much higher than that of the grille, because the anti-glare effect of the indoor lamp thoroughly eliminates the reflection glare formed on the inner side of the grille and ensures that the illumination value in the irradiated area is consistent with the design requirement. In addition, the light emitted by the LED light source part is irradiated out through the lens component, the light emitting area of the lamp is greatly improved, and the brightness is greatly reduced (less than 10000 cd/m)²) Thereby completely eliminating the blue light hazard (using any LED chip).

The LED illumination mechanism 100 can be arranged in a 2 × 9 array and used as an indoor lamp such as a classroom lamp and a conference lamp, and can guide light emitted by an LED light source to the maximum, accurately irradiate light emitted by an LED light source with known optical curve characteristics to an area to be irradiated, make an illuminance value in the area consistent with a design requirement, and achieve a required shading angle through accurate light distribution, thereby realizing glare-free illumination and finally realizing an excellent energy-saving effect of the whole lamp.

The terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the present invention, unless otherwise specifically stated or limited, the terms "connected" and "positioned" are to be understood broadly, and may for example be fixedly connected, clamped in place, or removably connected, or integrated; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Finally, it should be emphasized that the present invention is not limited to the above-described embodiments, but only the preferred embodiments of the invention have been described above, and the present invention is not limited to the above-described embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a LED lighting mechanism, includes lens subassembly, reflector assembly and the LED light source spare that arranges in proper order which characterized in that:

the lens component comprises a plurality of lens pieces, a first light-transmitting area and a second light-transmitting area are arranged on the outer wall of each lens piece, first protrusions are arranged on the first light-transmitting area and the second light-transmitting area, and the number of the first protrusions of the first light-transmitting area is equal to that of the first protrusions of the second light-transmitting area;

the reflector assembly comprises a plurality of reflector pieces, each reflecting inner wall of each reflector piece is a curved surface, and the reflecting inner wall protrudes to the outer side of the reflector assembly.

2. An LED lighting mechanism as recited in claim 1, wherein:

the inner reflective wall is a parabolic rotating curved surface.

3. An LED lighting mechanism as recited in claim 1, wherein:

the reflective inner wall is a spherical surface or an ellipsoidal surface.

4. An LED lighting mechanism as recited in claim 1, wherein:

the light reflecting inner wall is provided with a parabolic rotating curved surface, two sides of the parabolic rotating curved surface are respectively provided with a spherical surface or an ellipsoid, and the parabolic rotating curved surface and the two spherical surfaces or the two ellipsoids form the light reflecting inner wall.

5. An LED lighting mechanism as claimed in claim 4, wherein:

the parabolic rotating curved surface is in arc smooth transition connection with the spherical surface or the ellipsoidal surface.

6. An LED lighting mechanism as recited in claim 1, wherein:

the reflecting inner wall is provided with a circular spherical surface or an ellipsoid, two sides of the circular spherical surface or the ellipsoid are respectively provided with a parabolic rotating curved surface, and the circular spherical surface or the ellipsoid and the two parabolic rotating curved surfaces form the reflecting inner wall.

7. An LED lighting mechanism as recited in claim 6, wherein:

8. An LED lighting mechanism as recited in claim 7, wherein:

the inner wall of each lens piece is provided with a plurality of second protrusions, the second protrusions extend from one side to the other side of the lens piece, and the length of each second protrusion is longer than that of the second protrusion adjacent to the second protrusion and far away from the LED light source piece relative to the second protrusion.