CN216952910U - Polarized light distribution assembly and illumination lamp with same - Google Patents

Abstract

The utility model discloses a polarized light distribution assembly for performing polarized light treatment on light rays emitted by a light emitting element, which comprises two light distribution elements sequentially arranged along the light path of the light emitting element, wherein the first light distribution element is provided with a first incident part and a first emergent part, the second light distribution element is provided with a second incident part and a second emergent part, the outer surface of the second emergent part is constructed with a texture structure comprising a plurality of bulges, each bulge extends from one end of the second emergent part to the other opposite end, a groove is formed between every two adjacent bulges, the outer surface of the second emergent part is commonly distributed with the bulges, and the polarized light distribution assembly is configured as follows: the light emitted by the light-emitting element is emitted after passing through the first incident part, the first emergent part, the second incident part and the second emergent part, and can show a stretching effect along the texture structure to form a rectangular light spot or an elliptical light spot. The LED lamp has the advantages of good light divergence, difficult glare, larger irradiation range and better light distribution effect, and is suitable for operation lamps such as eye-protection lamps.

Description

Polarized light distribution assembly and illumination lamp with same

Technical Field

The utility model relates to the technical field of illumination, in particular to a polarized light distribution assembly for distributing light to an illumination light source and an illumination lamp with the polarized light distribution assembly.

Background

At present, illumination lamps such as desk lamps, reading lamps and eye protection lamps generally adopt an LED light source in a packaging form, the LED light source meets the requirement of primary light distribution during packaging, and light distribution more than two times is generally completed by means of a lens, a reflecting cup, a diffusion mask or light-transmitting glass so as to realize emitting proper light in scene application and form light spots. The existing lens is a common condensing lens and a diverging lens, the surface texture structure of the lens generally has a smooth surface structure, a sun-textured surface structure and the like, a light source generally forms a circular light spot after passing through the lens, the illumination is concentrated, the glare is easily caused, areas on two sides of the light spot are darker, the illumination range is smaller, and the light distribution effect is poorer.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model aims to provide a polarized light distribution assembly and a lighting lamp with the polarized light distribution assembly, wherein the polarized light distribution assembly can form rectangular or elliptical light spots, and has a larger illumination range and a better light distribution effect.

Therefore, the utility model provides a polarized light distribution assembly for performing polarized light treatment on light rays emitted by a light emitting element, which comprises a first light distribution element and a second light distribution element which are sequentially arranged along the light path of the light emitting element, wherein the first light distribution element is provided with a first incident part and a first emergent part, the second light distribution element is provided with a second incident part and a second emergent part, the outer surface of the second emergent part is constructed with a texture structure comprising a plurality of bulges, each bulge extends from one end of the second emergent part to the other opposite end, a groove is formed between every two adjacent bulges, and the outer surfaces of the second emergent parts are jointly covered with the bulges, and the polarized light distribution assembly is configured as follows: the light emitted by the light emitting element is emitted after passing through the first incident part, the first emergent part, the second incident part and the second emergent part to form a rectangular light spot or an elliptical light spot.

Preferably, the first incident portion has a groove recessed toward one side of the first exit portion, in which the light emitting element is disposed.

Preferably, the groove extends to a depth of 2/3 to 4/5 of the maximum distance between the first incident portion and the first exit portion.

Preferably, the first exit portion has a concave portion for diverging light rays that is concave toward the first incident portion side.

Preferably, the recess extends to a depth of 1/5 to 1/4 of the maximum distance between the first incident portion and the first exit portion.

Preferably, the geometric center of the first light distribution element, the geometric center of the concave groove, the geometric center of the concave portion, and the geometric center of the second light distribution element are located on the same center line.

Preferably, the first light distribution element and the second light distribution element are condenser lenses or diverging lenses.

Preferably, the shape of the first light distribution element and the shape of the second light distribution element are plate-shaped, bowl-shaped, semi-elliptical or hemispherical.

Preferably, the shape of the protrusions is circular arc or zigzag.

A lighting lamp comprises a lamp body, wherein a light source module is arranged in the lamp body; still including setting up in the lamp body and with the polarisation grading subassembly of light source module matching installation.

Preferably, the light source module includes a substrate and a plurality of light emitting elements disposed on the substrate, and each light emitting element is provided with a polarized light distribution assembly in a matching manner.

Preferably, the lamp body includes the shell, connects the translucent cover on the shell, and first grading component, second grading component are screw connection, buckle connection or adhesive bonding between shell or the base plate respectively.

Preferably, the second light distribution element covers the outer side of the first light distribution element and forms a space with the first light distribution element.

Preferably, the lighting fixture is a desk lamp, a reading lamp or an eye-protection lamp.

Compared with the prior art, the polarized light distribution assembly has the following beneficial effects:

two light distribution elements are sequentially arranged on the light path of the light-emitting element, and a texture structure comprising a plurality of protrusions is constructed on the outer surface of the emergent part of the second light distribution element, so that the structure of the optical surface of the emergent part of the second light distribution element is changed, the optical path of the second light distribution element is changed, and the light emitted by the light-emitting element can show a stretching effect along the texture structure after passing through the first light distribution element and the second light distribution element to form an oval light spot or a rectangular light spot; compared with the prior art, the LED lamp has the advantages of good light divergence, small possibility of causing glare, larger irradiation range and better light distribution effect, and is particularly suitable for application of operation lamps such as desk lamps, reading lamps and eye protection lamps.

Compared with the prior art, the lighting lamp has the following beneficial effects:

because the lighting lamp is provided with the polarized light distribution assembly, the polarized light distribution assembly has the advantages of being capable of forming stretched oval light spots or rectangular light spots, and is larger in illumination range and better in illumination effect.

Drawings

FIG. 1 is a schematic cross-sectional view of a polarized light distribution assembly (showing sawtooth-shaped protrusions) in accordance with a preferred embodiment of the present invention;

FIG. 2 is an enlarged partial schematic view at A shown in FIG. 1;

FIG. 3 is a schematic perspective view of the first light distribution element shown in FIG. 1;

FIG. 4 is a schematic perspective view of the second light distribution element shown in FIG. 1;

FIG. 5 is an optical diagram of the polarized light distribution assembly shown in FIG. 1;

FIG. 6 is a light distribution graph of the polarized light distribution assembly shown in FIG. 1;

FIG. 7 is a graph of the illuminance of the light spots of the polarized light distribution assembly shown in FIG. 1;

FIG. 8 is a schematic cross-sectional view of another polarized light distribution assembly (the first light distribution element employs a plano-convex lens) in accordance with a preferred embodiment of the utility model;

FIG. 9 is an optical diagram of the polarized light distribution assembly shown in FIG. 8;

FIG. 10 is a schematic cross-sectional view of another polarized light distribution assembly (showing a circular arc shaped protrusion) in accordance with a preferred embodiment of the present invention;

fig. 11 is a partially enlarged schematic view at B shown in fig. 10;

fig. 12 is a schematic perspective view of the second light distribution element shown in fig. 10;

FIG. 13 is an optical diagram of the polarized light distribution assembly shown in FIG. 10;

FIG. 14 is a light distribution graph of the polarization assembly shown in FIG. 10;

FIG. 15 is a graph of the spot illuminance for the polarizing assembly shown in FIG. 10;

FIG. 16 is an exploded perspective view of a lighting fixture in accordance with a preferred embodiment of the present invention;

wherein the reference numbers are as follows:

100. a polarized light distribution assembly; 200. a lighting fixture;

1. a first light distribution element; 11. a first incident portion; 111. a groove; 12. a first emission part; 121. a recess;

2. a second light distribution element; 21. a second incident portion; 22. a second emission part; 221. texture structure; 2211. a protrusion; 2212. a trench;

3. a lamp body; 31. a housing; 32. a light-transmitting cover; 33. a light source module; 331. a substrate; 332. a light emitting element;

4. a support;

5. a base.

Detailed Description

It is easily understood that, according to the technical solution of the present invention, a plurality of alternative structures and implementations can be proposed by those skilled in the art without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as all of the present invention or as limitations or limitations on the technical aspects of the present invention.

The terms of orientation of one end, the other end, relative, between, transverse, and the like referred to in the present specification are defined relative to the configuration shown in the respective drawings, and they are relative concepts, and thus may be changed accordingly depending on the position thereof and the use state thereof. Therefore, these and other directional terms should not be construed as limiting terms.

Fig. 1 to 7 show a structural composition, an optical path diagram, a light distribution graph, and an illuminance diagram of a polarized light distribution assembly 100 according to an embodiment of the present invention, and the following description is made in detail.

As shown in fig. 1, a polarized light distribution assembly 100 for polarizing light emitted from a light emitting element 332 includes a first light distribution element 1 and a second light distribution element 2.

As shown in fig. 3, the first light distribution element 1 is bowl-shaped and is a divergent lens. The first light distribution element 1 has a flange around its periphery. The first light distribution element 1 includes a first incident portion 11 and a first emission portion 12. The first incident portion 11 of the first light distribution element 1 has a recess 111 recessed toward the first emission portion 12 side in which the light emitting element 332 is placed. The first emission portion 12 of the first light distribution element 1 has a concave portion 121 for diverging light rays, which is concave toward the first incident portion 11 side. Specifically, the groove 111 extends to a depth of 2/3 to 4/5 which is the maximum distance between the first incident portion 11 and the first exit portion 12. The recess 121 extends to a depth 1/5 to 1/4 that is the maximum distance between the first incident part 11 and the first exit part 12. In some embodiments, the first light distribution element 1 may also be another type of lens, for example, the first light distribution element may be a condensing lens such as a convex lens, a plano-convex lens, etc., and the shape of the first light distribution element is not limited to a hemispherical shape, and may also be a plate-shaped structure, a semi-elliptical shape, or a hemispherical shape, and may be specifically designed according to a practical application of the lamp.

As shown in fig. 4, the second light distribution element 2 is a hemispherical shape and is also a divergent lens. The second light distribution element 2 includes a second incident portion 21 and a second emission portion 22. As shown in fig. 2, the outer surface of the second emission portion 22 is formed with a texture 221 including a plurality of protrusions 2211, each protrusion 2211 extends from one end of the second emission portion 22 to the other end, a groove 2212 is formed between two adjacent protrusions 2211, and the plurality of protrusions 2211 are distributed over the outer surface of the second emission portion 22. In this example, the projection 2211 has a zigzag shape. In some embodiments, the second light distribution element 2 may also be another type of lens, for example, the second light distribution element may be a condensing lens such as a convex lens, a plano-convex lens, etc., and the shape of the second light distribution element is not limited to a hemisphere, and may also be a plate-shaped structure, a semi-ellipse, or a bowl, and may be specifically designed according to a practical application of the lamp.

As shown in fig. 5, the first light distribution element 1 and the second light distribution element 2 are arranged in this order along the light path of the light emitting element 332. The second light distribution element 2 is disposed outside the first light distribution element 1. The geometric center of the first light distribution element 1, the geometric center of the concave groove 111, the geometric center of the concave portion 121, and the geometric center of the second light distribution element 2 are located on the same center line. In this example, fig. 6 shows a polar light distribution curve of the polarized light distribution module 100, and it can be seen that the light intensity of the light emitting element 332 in the space is almost laterally distributed and axisymmetric, and a stretching distribution effect is exhibited, and the light intensity is mainly distributed at two side positions. Fig. 7 shows a flare illuminance diagram of the polarized light distribution module 100, and it can be seen that the light emitted from the light emitting element 332 is emitted after passing through the first incident portion 11, the first emission portion 12, the second incident portion 21, and the second emission portion 22, and the stretching effect is exhibited along the texture structure 221, thereby forming a substantially rectangular flare. Compared with the circular light spots in the prior art, the LED lamp has the advantages of good light divergence, small possibility of causing glare, larger irradiation range and better light distribution effect, and is particularly suitable for application of operation lamps such as desk lamps, reading lamps and eye protection lamps.

As a modification of the above embodiment, unlike the above embodiment, a plano-convex lens may be used as the first light distribution element 1 as shown in fig. 8. As shown in fig. 9, as seen from the optical path diagram, the light emitted from the light emitting element 332 passes through the first light distribution element 1 and the second light distribution element 2, and then exhibits a divergent effect of stretching.

Fig. 10 to 15 show a structural composition, an optical path diagram, a light distribution graph, and an illuminance diagram of a polarized light distribution assembly 100 according to still another embodiment of the present invention, and the following description will be made in detail.

In addition, unlike the foregoing embodiment, the textured structure 221 including the plurality of projections 2211 is configured on the outer surface of the second emission portion 22 of the second light distribution element 2, and the projections 2211 have a circular arc shape.

In the present embodiment, fig. 14 shows a polar light distribution curve of the polarized light distribution assembly 100, and it can be seen that the illumination intensity of the light emitting element 332 in the space is laterally distributed and axisymmetric, and the distribution effect is stretched and the distribution is relatively uniform in the lateral direction. Fig. 15 shows a flare illuminance diagram of the polarized light distribution module 100, and it can be seen that the light emitted from the light emitting element 332 is emitted after passing through the first incident portion 11, the first emission portion 12, the second incident portion 21, and the second emission portion 22, and the stretching effect is exhibited along the texture structure 221, and an approximately elliptical flare is formed. Compared with the circular light spots in the prior art, the LED lamp has the advantages of good light divergence, small possibility of causing glare, larger irradiation range and better light distribution effect, and is particularly suitable for application of operation lamps such as desk lamps, reading lamps and eye protection lamps.

As shown in fig. 16, the polarized light distribution module 100 can be applied to a desk lamp. Specifically, the lighting fixture 200 may be a desk lamp, an eye-protecting lamp, or other reading lamp. The lighting fixture 200 includes a lamp body 3, a bracket 4, and a base 5, the bracket 4 being connected between the base 5 and the lamp body 3 and supporting the lamp body 3.

A light source module 33 is arranged in the lamp body 3, and the polarized light distribution assembly 100 is arranged in the lamp body 3 and is installed in a matching manner with the light source module 33. Specifically, the lamp body 3 includes a housing 31 and a light-transmitting cover 32 attached to the housing 31. The light source module 33 includes a substrate 331 and a plurality of light emitting elements 332 disposed on the substrate 331, and the polarized light distribution module 100 is mounted on each of the light emitting elements 332 in a matched manner. The matching mounting structures of the first light distribution element 1 and the second light distribution element 2 and the light emitting element 332 have various common forms. In some embodiments, the first light distribution element 1 and the second light distribution element 2 are respectively connected with the housing 31 by gluing. In some embodiments, a fastener or a screw hole may be molded on the first light distribution element 1 and the second light distribution element 2, and the housing 31 may be provided with a corresponding fastener or a corresponding screw to achieve a snap connection or a screw connection. In some embodiments, the first light distribution element 1 and the second light distribution element 2 can also be connected with the substrate 331 by screws, snaps or glues. In some embodiments, light-emitting element 332 can be a solid state light device, such as an LED light bead.

When the polarized light distribution assembly 100 is applied to the illumination lamp 200 for use, the second light distribution element 2 is disposed outside the first light distribution element 1 in a covering manner and forms a space with the first light distribution element 1. In some embodiments, the second light distribution element 2 may be integrally molded with the first light distribution element 1, and a hollow space may not be formed between the two, that is, the second light distribution element 2 is molded outside the first light distribution element 1, so that the two are fixed, which is not limited in particular.

The support 4 may be a fixed support or a folding support, and is not limited specifically. The circuit board and the storage battery can be arranged in the base 5, the wires can be laid in the support or outside the support, and the circuit board in the base and the light source module 33 in the lamp body are connected through the wires, so that the power is supplied to the light source module 33. The base 5 can also be connected with a plug, and the plug is connected with the mains supply to supply power. Since the application structures of the bracket 4 and the base 5 are common, they are not described herein.

The technical scope of the present application is not limited to the contents in the above description, and those skilled in the art can make various changes and modifications to the above embodiments without departing from the technical spirit of the present application, and these changes and modifications should fall within the protective scope of the present application.

Claims (14)

1. A polarized light distribution assembly is used for carrying out polarized light processing on light rays emitted by a light emitting element, and is characterized in that: the light distribution device comprises a first light distribution element (1) and a second light distribution element (2) which are sequentially arranged along the light path of a light emitting element, wherein the first light distribution element (1) is provided with a first incident part (11) and a first emergent part (12), the second light distribution element (2) is provided with a second incident part (21) and a second emergent part (22), a texture structure (221) comprising a plurality of bulges (2211) is constructed on the outer surface of the second emergent part (22), each bulge (2211) extends from one end of the second emergent part (22) to the other opposite end, a groove (2212) is formed between every two adjacent bulges (2211), the bulges (2211) are distributed on the outer surface of the second emergent part (22), and the light distribution component is configured as follows: light rays emitted by the light emitting element (332) are emitted after passing through the first incident part (11), the first emergent part (12), the second incident part (21) and the second emergent part (22) to form rectangular light spots or oval light spots.

2. A polarized light distribution assembly according to claim 1, wherein: the first incident part (11) is provided with a groove (111) which is sunken towards one side of the first emergent part (12) and can be used for placing the light-emitting element.

3. A polarized light distribution assembly according to claim 2, wherein: the groove (111) extends to a depth of 2/3 to 4/5 of a maximum distance between the first incident part (11) and the first exit part (12).

4. A polarized light distribution assembly according to claim 2 or 3, characterized in that: the first emission part (12) has a concave part (121) for diverging light rays, which is concave toward the first incidence part (11).

5. A polarized light distribution assembly according to claim 4, wherein: the recess (121) extends to a depth of 1/5 to 1/4 of a maximum distance between the first incident part (11) and the first exit part (12).

6. A polarized light distribution assembly according to claim 4, wherein: the geometric center of the first light distribution element (1), the geometric center of the groove (111), the geometric center of the recess (121), and the geometric center of the second light distribution element (2) are located on the same center line.

7. A polarized light distribution assembly according to claim 1, wherein: the first light distribution element (1) and the second light distribution element (2) are condensing lenses or diverging lenses.

8. A polarized light distribution assembly according to claim 1, wherein: the shape of the first light distribution element (1) and the shape of the second light distribution element (2) are plate-shaped, bowl-shaped, semi-elliptical or hemispherical.

9. A polarized light distribution assembly according to claim 1, wherein: the shape of the projection (2211) is circular arc or zigzag.

10. A lighting lamp comprises a lamp body (3), wherein a light source module (33) is arranged in the lamp body (3); the method is characterized in that: the polarized light distribution module further comprises the polarized light distribution assembly as claimed in any one of claims 1 to 9, which is arranged in the lamp body (3) and is installed in a matched manner with the light source module (33).

11. A lighting fixture as recited in claim 10, wherein: the light source module (33) comprises a substrate (331) and a plurality of light-emitting elements (332) arranged on the substrate (331), wherein the light-emitting elements (332) are provided with the polarized light distribution assembly in a matched mode.

12. The lighting fixture of claim 11, wherein: the lamp body (3) comprises a shell (31) and a light-transmitting cover (32) connected to the shell (31), and the first light distribution element (1) and the second light distribution element (2) are in screw connection, buckling connection or adhesive connection with the shell (31) or the substrate (331) respectively.

13. The lighting fixture of claim 12, wherein: the second light distribution element (2) is covered on the outer side of the first light distribution element (1) and forms a spacing space with the first light distribution element (1).

14. A lighting fixture as recited in claim 10, wherein: the lighting lamp is a desk lamp, a reading lamp or an eye-protecting lamp.

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