CN111207366A

CN111207366A - Light splitting lens, full-circumference light-emitting lamp and working method thereof

Info

Publication number: CN111207366A
Application number: CN202010158276.8A
Authority: CN
Inventors: 岳韵霞
Original assignee: Pulse Optical Co ltd
Current assignee: Pulse Optical Co ltd
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-05-29

Abstract

The invention discloses a light splitting lens, a full-circumference light-emitting lamp and a working method thereof, wherein the light splitting lens is of a cylindrical structure, a first end of the light splitting lens is provided with a light inlet surface, a second end of the light splitting lens is provided with a reflection cambered surface which is sunken towards the inside of the light splitting lens, the light inlet surface and the reflection cambered surface are connected through a circumference light outlet surface, and a light source is arranged on one side of the light inlet surface of the light splitting lens, so that light rays emitted by the light source are emitted into the light splitting lens through the light inlet surface and are emitted out along; in the full-circumference light-emitting lamp, because the reflecting arc surface exists, light rays emitted by the light source cannot irradiate an area above the reflecting arc surface, the light rays split by the light splitting lens are emitted along the periphery of the cylindrical light splitting lens by 360 degrees and form uniform annular light spots on the periphery, and when human eyes observe in an angle range covered above the reflecting arc surface, glare is not easy to generate, the illuminance distribution in the halo area is uniform, and the atmosphere is comfortable.

Description

Light splitting lens, full-circumference light-emitting lamp and working method thereof

Technical Field

The invention belongs to the technical field of lamps, and particularly relates to a light splitting lens, a full-circumference light-emitting lamp and a working method of the full-circumference light-emitting lamp.

Background

With the evolution and the transition of the human society, people have demands on indoor lighting after living in cave, people in modern society have systematic development on indoor lighting, key lighting, special lighting and atmosphere lighting designs are gradually increased from single lighting, and atmosphere lighting is widely applied and is commonly used in theme parks, hotels, homes, exhibitions, business and artistic lighting.

To atmosphere illumination lamps and lanterns, add simple lens as the design basis on traditional LED light source mostly, and what most adopted is unilateral luminous, and optical characteristic is simple, is unfavorable for lamps and lanterns environment atmosphere lighting requirements all around.

The invention patent application with application number 201410346180.9 discloses a full-period light LED lamp, which realizes full-period light emission, but in the lens of the LED, a reflecting surface reflects part of light, but actually, the outline of the reflecting surface is convex towards the opposite side of the lens entity, so the reflecting surface has a light-gathering effect on the reflected light, and the uniformity of the illumination of the light below the peripheral side of the lens is not facilitated; in addition, since another part of the light on the reflecting surface is refracted and projected above the reflecting surface, a large amount of light is actually present above the lens, which causes unfavorable luminance distribution in each direction in space, and glare is easily generated in the human visual field when observed above the lens, which may cause people to feel unpleasant and uncomfortable or even lose visibility.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a full-circumference light-emitting lamp with uniform illumination and capable of reducing the generation of glare.

The purpose of the invention is realized by the following technical scheme:

the light splitting lens is of a cylindrical structure, and a light incident surface is arranged at a first end of the light splitting lens; the second end of the light splitting lens is provided with a reflection cambered surface which is concave towards the inside of the light splitting lens, and the light incident surface is connected with the reflection cambered surface through a circumferential light emergent surface.

Furthermore, the light incident surface is a concave curved surface arranged at the first end of the beam splitting lens, and the curved surface profile of the light incident surface is convex towards one side of the beam splitting lens entity in the opposite direction.

Further, the arc-shaped contour on the reflecting arc surface is concave towards one side of the solid body of the light splitting lens.

A full-circle light-emitting lamp comprises a light splitting lens and a light source, wherein the light source is arranged on one side of a light inlet face of the light splitting lens, so that light rays emitted by the light source penetrate into the light splitting lens through the light inlet face and are emitted out along a circumferential light outlet face after being reflected by a reflecting cambered surface.

Furthermore, the all-round light-emitting lamp also comprises an anti-dazzle lens, the anti-dazzle lens comprises a plurality of anti-dazzle rings with collinear central axes, the anti-dazzle rings are sequentially overlapped up and down and sleeved on the circumferential light-emitting surface of the light splitting lens, and in any two adjacent groups of anti-dazzle rings, the upper anti-dazzle ring is connected with the lower anti-dazzle ring, and a light absorption structure is arranged on the contact surface.

Further, a light guide lens is further arranged between the light source and the light splitting lens, the light source is arranged at one end of the light incoming surface of the light guide lens, and the light splitting lens is arranged at one end of the light outgoing surface of the light guide lens, so that light emitted by the light source is converged on the light incoming surface of the light splitting lens through the light guide column.

Further, the light guide lens comprises a light guide column and a convex lens arranged on a light emitting surface of the light guide column, the light source is arranged at one end of the light incident surface of the light guide column, and the light splitting lens is arranged at one end of the light emitting surface of the convex lens.

Furthermore, the convex lens is an annular convex lens with a concave middle part of the light-emitting surface.

Furthermore, a plurality of light mixing microstructures are arranged on the light emitting surface of the convex lens.

Furthermore, the light mixing microstructure is a micro-convex lens structure arranged on the light emitting surface of the convex lens.

Further, the inner diameter of the anti-dazzle ring is matched with the outer diameter of the circumferential light-emitting surface of the light splitting lens.

Furthermore, the full-circumference light-emitting lamp also comprises an outer cover, a light source is arranged in the outer cover, and the anti-dazzle lens is arranged above the light source.

A working method of a full-period light-emitting lamp comprises the following steps: light emitted by the light source is converged on the light reflecting cambered surface of the light splitting lens through the light incident surface, and the light is scattered by the light reflecting cambered surface and is emitted out along the circumferential light emitting surface of the light splitting lens.

The light emitted from the circumferential light-emitting surface enters the anti-dazzle lens, the first part of light is refracted in the anti-dazzle lens and is emitted along the periphery of the anti-dazzle lens, the second part of light is emitted to the light-absorbing structure of the anti-dazzle lens to be absorbed, and at the moment, the anti-dazzle lens converges the first part of light to the same side of the light-absorbing structure.

The invention has the beneficial effects that: in the full-circumference light-emitting lamp, light rays emitted by a light source are firstly split through the light incident surface of the light splitting lens for the first time and are irradiated into the light splitting lens, and then are split for the second time through the reflecting cambered surface to generate total reflection; because the reflecting cambered surface exists, light rays emitted by the light source cannot irradiate the area above the transmitting cambered surface, and glare is not easily formed in the area above the reflecting cambered surface when human eyes observe the area in the angle range covered above the reflecting cambered surface; the light split by the light splitting lens is emitted along the periphery of the cylindrical light splitting lens by 360 degrees and forms annular light spots on the periphery, and the illuminance in the light spot area is uniformly distributed and the atmosphere is comfortable.

Drawings

FIG. 1 is a schematic view of a full-circumference light-emitting lamp according to the present invention;

FIG. 2 is a perspective view of an optical lens assembly of the full-circumference light emitting lamp of the present invention;

FIG. 3 is a perspective view of a light guide lens of the full-circumference light emitting lamp of the present invention;

FIG. 4 is a schematic view of a beam splitting lens structure of the full-circumference light emitting lamp of the present invention;

FIG. 5 is a schematic view of an anti-glare lens structure of the full-circumference light emitting lamp of the present invention;

FIG. 6 is a schematic diagram of a light analysis of the full-circle light-emitting lamp of the present invention;

FIG. 7 is a light distribution curve diagram of the full-circle light-emitting lamp of the present invention;

FIG. 8 is a schematic view of the illuminance distribution of the full-period light emitting lamp of the present invention;

icon: 1-outer cover, 2-light guide lens, 21-light guide lens light incoming surface, 22-light guide column, 23-convex lens, 24-convex lens light outgoing surface, 25-light mixing microstructure, 3-light splitting lens, 31-light incoming surface, 32-reflecting arc surface, 33-circumference light outgoing surface, 34-light splitting lens light incoming port, 4-anti-dazzle lens, 41-light absorbing structure, 42-anti-dazzle ring, 43-lens cavity, 5-light source and 6-cavity.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.

As shown in fig. 1 to 8, a full-circumference lighting lamp, which can be used for special lighting or atmosphere lighting, structurally comprises a housing 1, a light guide lens 2, a light splitting lens 3, an anti-dazzle lens 4 and a light source 5.

The housing 1 is used for mounting and fixing components such as an optical lens and a light source 5 in the lamp, and the material of the housing may be non-transparent plastic or metal, as shown in fig. 1, in this embodiment, the housing 1 is a set of vertically-arranged cylindrical components, and the light source 5 is mounted in the housing 1.

As shown in fig. 2-3, the light guide lens 2 includes a light guide column 22 and a convex lens 23, the light guide lens 2 is used for guiding the light emitted by the light source 5 and has the functions of guiding light and mixing color, so the light source 5 is disposed at one end of the light guide column 22, i.e. at one side of the light guide lens light incident surface 21, the light guide column 22 is of a quadrangular frustum structure, the light incident surface is the end surface of the square frustum with a smaller outline, the convex lens 23 is disposed on the end surface of the square frustum with a larger outline of the light guide column 22, i.e.: as shown in fig. 2-3, the light incident surface of the convex lens 23 is connected to the light emitting surface of the light guiding pillar 22, and the middle of the light emitting surface 24 of the convex lens is provided with a concave structure, so that the convex lens 23 is a circular convex lens, and the light emitting surface 24 of the convex lens is provided with a plurality of light mixing microstructures 25.

As shown in fig. 1 and 4, the light splitting lens 3 is a cylindrical structure, a first end surface of the light splitting lens 3 is a light incident surface 31, a second end surface of the light splitting lens 3 is a reflective arc surface 32, the light incident surface 31 and the reflective arc surface 32 are connected through a circumferential light emitting surface 33 of the light splitting lens 3, a light incident port 34 of the light splitting lens is further disposed on one side of the light incident surface 31 of the light splitting lens 3, and a reflective film layer is plated on the reflective arc surface 32 to form a total reflection mirror surface, so that light incident on the reflective arc surface 32 cannot penetrate through the reflective arc surface 32, and therefore no light enters above the reflective arc surface.

The light incident surface 31 is concave in the spectroscopic lens 3 and the formed concave cavity curved surface is convex, that is: as shown in fig. 4, in a cross-sectional view of the splitting lens 3, the profile curve on the light incident surface 31 is convex toward the opposite side of the splitting lens 3, and the generated effect is as shown in fig. 6, and the light rays converged through the light incident surface 31 are more easily refracted onto the reflective arc surface 32.

The reflective arc surface 32 is recessed in the second end of the spectroscopic lens 3, and has a convex mirror effect inside the spectroscopic lens 3 (that is, the reflective arc surface 32 is a wide-angle mirror surface facing the inside of the spectroscopic lens 3), specifically, in a sectional view state of the spectroscopic lens 3, a profile curve of the reflective arc surface 32 is recessed toward one side of the entity of the spectroscopic lens 3, and light rays converged onto the reflective arc surface 32 through the light incident surface 31 are more easily divergently reflected by the reflective arc surface 32, and further uniformly irradiate on the circumferential light emitting surface 33.

The outline of the outer circumference of the convex lens 23 of the light guide lens 2 is matched with the outline of the light inlet 34, the assembled effect is shown in fig. 2, a cavity 6 is formed between the light inlet surface 31 of the light splitting lens 3 and the convex lens 23, the light emitted along the light mixing microstructure 5 is projected on the light inlet surface 31 of the light splitting lens 3, one part of the light is emitted along the circumference light outlet surface 33, the other part of the light is emitted onto the reflection cambered surface 32 after being split for the first time through the light inlet surface 31, because the reflection cambered surface 32 is provided with a reflection coating, the reflection cambered surface 32 forms a total reflection curved surface, the light emitted onto the reflection cambered surface 32 is totally reflected into the circumference light outlet surface 33 through the secondary light splitting, finally, the light emitted along the whole light outlet surface 33 of the circumference of the light incident 31 of the light splitting lens 3, and because of the reflection cambered surface 32, when people observe the area above the reflecting arc surface 32, because no light is emitted, glare is not easy to generate.

As shown in fig. 2 and 5, the anti-glare lens 4 includes a plurality of anti-glare rings 42 with collinear central axes, the anti-glare rings 42 are sequentially stacked up and down to form a group of anti-glare lenses 4, so that a group of annular lens cavities 43 is formed in the anti-glare lenses 4, the lens cavities 43 are covered on the cylindrical surface of the spectral lens 3, and the inner circumferential surface of each group of anti-glare rings 42 is closely matched with the circumferential light-emitting surface 33 of the spectral lens 3, so that the light emitted along the circumferential light-emitting surface 33 of the spectral lens 3 is totally entered into the anti-glare lens 4, in any two groups of anti-glare rings 42 adjacent up and down, the upper anti-glare ring 42 is connected with the lower anti-glare ring 42, and a light-absorbing structure 41 is arranged on the contact surface, i.e. in the present embodiment, the light-absorbing surface of the two adjacent groups of anti-glare rings 42 is plated with a light-absorbing, light incident on the light absorbing structure 41 is absorbed by the light absorbing structure 41.

As shown in fig. 5, the arbitrary cross-sectional profile of the anti-glare ring 42 is a parallelogram, and when viewed from the inner circumferential surface side to the outer circumferential surface side of the anti-glare ring 42, the upper and lower end surfaces of the anti-glare ring 42 are inclined downward, an inclined plane is formed between the inner circumferential surface side and the outer circumferential surface, and the inclined plane is a contact surface between two adjacent sets of anti-glare rings 42, and because the light-absorbing film layer is coated on the surface, as shown in fig. 6, a part of light rays enters the anti-glare ring 42, is refracted in the anti-glare ring 42, and is emitted obliquely downward along the outer circumferential surface of the anti-glare ring 42, and another part of light rays is irradiated onto the light-absorbing film layer to be absorbed, and the purpose of the anti-glare ring 42 is to converge the light rays in the spectral lens 3 to the same side of the light-absorbing structure 41, i.

The light source 5 is an RGBW full-color spectrum LED light source, a control board is arranged on the light source, the light source 5 can generate white and color light by adjusting the control board of the light source 5, so that conditions are provided for free combination of light, stepless color mixing and temperature adjustment can be realized, red light, green light, blue light, white light with different color temperatures and the like can be emitted independently, the color light emitted by the light source 5 is different, and the color light emitted by the light source 5 is mixed and mixed by the light guide lens 2 to form a group of white light with uniform color.

As shown in fig. 6, the light source 5 is disposed in the housing 1, the light guide lens 2 is vertically disposed, the light splitting lens 3 and the anti-glare lens 4 are disposed at the upper end of the light emitting surface of the light guide lens 2, and the light is mixed by the light guide lens 2 for multiple times, then is converged to the light incident surface 31 of the light splitting lens 3, and finally is emitted obliquely downward along the outer circumferential surface of the anti-glare ring 42.

As shown in fig. 1, since light rays are emitted from the anti-glare lens 4 and then obliquely emitted downwards, the light path of the emitted light rays is changed, and due to the blocking of the light-absorbing film layer on the anti-glare lens 4, no glare is caused in the area α requiring anti-glare, the light distribution in the irradiation area β is more uniform, no light rays are generated in the gamma dark area, the ranges of α, β and the gamma coverage area can be adjusted and optimized by setting the angles of inclination of the upper and lower end surfaces of the anti-glare ring 42, that is, the inclination angles of the film layer, in the present embodiment, the final angles of α, β and gamma are respectively about 120 °, 50 ° and 10 °, and finally the range of the gamma dark area is reduced to the minimum range, and finally, the uniform annular light spots as shown in fig. 8 are formed on the projection surface, and the actually measured light distribution graph is shown in fig. 7, the illuminance and the chromaticity distribution.

The full-circumference light-emitting lamp adopts an optical lens combination structure, the outer cover 1 is in a long-shaft design, is simple and elegant, occupies a small area, has a large aperture range covering area and a small dark space range, and does not generate glare.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A beam splitting lens, characterized in that: the light splitting lens (3) is of a cylindrical structure, and a light incident surface (31) is arranged at the first end of the light splitting lens (3); the second end of the light splitting lens (3) is provided with a reflection cambered surface (32) which is concave towards the interior of the light splitting lens (3), and the light incident surface (31) and the reflection cambered surface (32) are connected through a circumferential light emergent surface (33);

the light incident surface (31) is a concave curved surface arranged at the first end of the light splitting lens (3), and the curved surface profile of the light incident surface (31) is convex towards one side of the light splitting lens (3) in the opposite direction; the arc-shaped contour on the reflecting arc surface (32) is sunken towards one side of the entity of the light splitting lens (3), and the reflecting arc surface (32) is a total reflection arc surface so as to prevent light rays from transmitting.

2. A full-circumference light-emitting lamp, comprising the light-splitting lens (3) of claim 1, wherein the light source (5) is disposed on one side of the light-incident surface (31) of the light-splitting lens (3), so that light emitted from the light source (5) enters the light-splitting lens (3) through the light-incident surface (31), is reflected by the reflection arc surface (32), and then exits along the circumferential light-exiting surface (33).

3. The full-circle lighting fixture of claim 2, wherein: the all-around light-emitting lamp further comprises an anti-dazzle lens (4), the anti-dazzle lens (4) comprises a plurality of anti-dazzle rings (42) with collinear central axes, the anti-dazzle rings (42) are sequentially overlapped up and down and sleeved on the circumferential light-emitting surface (33) of the light splitting lens (3), in any two adjacent groups of anti-dazzle rings (42), the anti-dazzle rings (42) on the upper side and the lower side are connected, and a light absorption structure (41) is arranged on a contact surface.

4. The full-circle lighting fixture of claim 2, wherein: still be equipped with light guide lens (2) between light source (5) and beam splitting lens (3), the income plain noodles one end of light guide lens (2) is located in light source (5), the play plain noodles one end of light guide lens (2) is located in beam splitting lens (3) for light source (5) send light and converge on income plain noodles (31) of beam splitting lens (3) through leaded light post (2).

5. The full-circle lighting fixture of claim 4, wherein: light guide lens (2) are including leaded light post (22) and locate convex lens (23) on leaded light post (22) play plain noodles, leaded light post (22) income plain noodles one end is located in light source (5), and the play plain noodles one end of convex lens (23) is located in beam splitting lens (3).

6. The full-circle lighting fixture of claim 5, wherein: the convex lens (23) is an annular convex lens with a concave light-emitting surface in the middle.

7. The full-circle lighting fixture of claim 6, wherein: the light emitting surface of the convex lens (23) is provided with a plurality of light mixing microstructures (25).

8. The full-circle lighting fixture of claim 7, wherein: the light mixing microstructure (25) is a micro convex lens structure arranged on the light-emitting surface of the convex lens (23).

9. The method of claim 3, wherein: light rays emitted by the light source (5) are converged on the light reflecting cambered surface (32) of the light splitting lens (3) through the light incident surface (31), and the light reflecting cambered surface (32) scatters the light rays and emits the light rays out along the circumferential light emitting surface (33) of the light splitting lens (3).

10. The method of claim 9, wherein: the light emitted from the circumferential light emitting surface (33) enters the anti-dazzle lens (4), the first part of light is refracted in the anti-dazzle lens (4) and emitted along the periphery of the anti-dazzle lens (4), and the second part of light is emitted into the light absorption structure (41) of the anti-dazzle lens (4) to be absorbed, so that the anti-dazzle lens (4) converges the first part of light to the same side of the light absorption structure (41).