CN219036420U - Polarized lens structure and lighting device and desk lamp applying polarized lens structure - Google Patents

Abstract

The application provides a polarized lens structure and a lighting device and a desk lamp using the polarized lens structure, wherein the polarized lens structure comprises a lens seat, and the lens seat comprises a first surface and a second surface which are oppositely arranged; the polarized lens structure further comprises a plurality of first lens parts, a plurality of second lens parts and a plurality of light-transmitting grooves, wherein the plurality of first lens parts are arranged on the first surface side by side along the first direction, the plurality of second lens parts are arranged on the first surface side by side along the first direction, the plurality of light-transmitting grooves are arranged side by side along the first direction, the plurality of light-transmitting grooves penetrate through the lens seat from the second surface, the light-transmitting grooves are arranged corresponding to the first lens parts or the second lens parts, and the light-transmitting grooves are used for accommodating luminous elements; the first lens parts and the second lens parts are arranged oppositely along the first direction, the first lens parts are used for guiding the light rays emitted by the light emitting piece to project towards one side of the second lens parts, and the second lens parts are used for guiding the light rays emitted by the light emitting piece to project towards one side of the first lens parts.

Description

Polarized lens structure and lighting device and desk lamp applying polarized lens structure

Technical Field

The application relates to the technical field of polarized lenses, in particular to a polarized lens structure, and a lighting device and a desk lamp using the polarized lens structure.

Background

As LED lamps are becoming more popular in the field of lighting, the lighting requirements for LED lamps are also increasing. Most of lamps adopting LED lamps are provided with a luminous source for forming the whole lamp by connecting a plurality of LED lamps in series, so that in order to improve the lighting effect, the serial structure of the LED lamps has higher requirements on the structural design of lenses, and adverse phenomena such as macula and facula can occur when the structural design of the lenses is improper, and the lighting effect of the lamp is seriously affected. In addition, the uniformity of illumination of the light-emitting source formed by the serial structure of the LED lamp is not good enough, the brightness difference between the edge of the illumination surface and the middle position is large, and the comfort level of a user is seriously affected.

How to solve the above problems, it is needed to provide a polarized lens structure with good illumination uniformity and capable of effectively reducing the occurrence of adverse phenomena such as macula lutea and facula, and an illumination device and a desk lamp using the polarized lens structure.

Disclosure of Invention

The embodiment of the application provides a polarized lens structure, which comprises a lens seat, wherein the lens seat comprises a first surface and a second surface which are oppositely arranged; the polarized lens structure further includes:

a plurality of first lens portions disposed side by side on the first surface along a first direction;

a plurality of second lens portions disposed side by side on the first surface along a first direction;

the plurality of light-transmitting grooves are arranged side by side along the first direction, penetrate through the lens seat from the second surface, are arranged corresponding to the first lens part or the second lens part, and are used for accommodating luminous elements;

the first lens portions and the second lens portions are arranged opposite to each other along the first direction, the first lens portions are used for guiding light rays emitted by the light emitting element to project towards one side of the second lens portions, and the second lens portions are used for guiding light rays emitted by the light emitting element to project towards one side of the first lens portions.

Further, the first lens portion comprises a first inclined surface body and a first curved surface body, and the first inclined surface body is connected with the first curved surface body and is arranged in an integrated structure.

Further, the first curved surface body is disposed on a side of the first inclined surface body, which is close to the second lens portion.

Further, the first inclined plane body comprises a first inclined plane, and the first inclined plane is obliquely arranged towards one side facing away from the first curved surface body.

Further, the first curved surface body comprises a first curved surface area portion and a second curved surface area portion, the first inclined surface body is connected with the second curved surface area portion through the first curved surface area portion, and the curvature of the first curved surface area portion is smaller than that of the second curved surface area portion.

Further, the second lens part comprises a second inclined plane body and a second curved plane body, and the second inclined plane body is connected with the second curved plane body and is arranged in an integrated structure; the second curved surface body is arranged on one side, close to the first lens part, of the second inclined surface body.

Further, the second inclined plane body comprises a second inclined plane, and the second inclined plane is obliquely arranged towards one side away from the second curved plane body; the second curved surface body comprises a third curved surface area part and a fourth curved surface area part, the second inclined surface body is connected with the fourth curved surface area part through the third curved surface area part, and the curvature of the third curved surface area part is smaller than that of the fourth curved surface area part.

Further, the light-transmitting groove is arranged in a curved structure, and the light-transmitting groove is formed from the second surface to be communicated with the first lens part or the second lens part.

The embodiment of the application also provides a lighting device, which adopts the polarized lens structure, and comprises a plurality of light emitting pieces, wherein the light emitting pieces are respectively and correspondingly arranged in a plurality of light transmission grooves.

The embodiment of the application also provides a desk lamp, which comprises the lighting device.

Compared with the prior art, the polarized lens structure and the lighting device and the desk lamp applying the polarized lens structure are characterized in that a plurality of first lens portions and a plurality of second lens portions are oppositely arranged on the first surface of the lens base, a plurality of light transmission grooves for installing light emitting pieces are formed in the second surface of the lens base, light emitted by the light emitting pieces passes through the light transmission grooves and then is projected outwards through the first lens portions and the second lens portions, the first lens portions can project the light to one side of the second lens portions more, the second lens portions can project the light to one side of the first lens portions more, the illumination intensity of the edge of an illumination surface is enhanced, and the illumination uniformity of the whole illumination surface is improved.

Drawings

Fig. 1 is a schematic structural diagram of a polarized lens structure according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of another view angle of the polarized lens structure in an embodiment of the present application.

Fig. 3 is a schematic enlarged view of a portion of a region ii corresponding to the polarized lens structure in fig. 1.

Fig. 4 is a schematic optical path diagram of a first lens portion of the polarized lens structure in an embodiment.

Fig. 5 is a schematic structural diagram of an illumination device according to an embodiment of the present application.

Fig. 6 is a schematic view of a light distribution pattern of the lighting device of the present application.

Fig. 7 is a schematic view of a light distribution curve of the lighting device of the present application.

Fig. 8 is a schematic structural diagram of a desk lamp according to an embodiment of the present application.

Description of main reference numerals:

polarized lens structure 100

Lighting device 200

Desk lamp 300

First direction X

First lens part 10

First inclined surface body 11

First inclined plane 111

First back surface 112

First curved surface body 12

First curved surface region 121

Second curved surface region 122

Second lens portion 20

Second bevel body 21

Second inclined plane 211

Second back surface 212

Second curved surface body 22

Third curved surface area 221

Fourth curved surface section 222

Lens holder 30

First surface 31

Second surface 32

Light-transmitting groove 40

Luminous element 50

The following detailed description will further illustrate the application in conjunction with the above-described figures.

Detailed Description

The following description will refer to the accompanying drawings in order to more fully describe the present application. Exemplary embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art. Like reference numerals designate identical or similar components.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, as used herein, "comprises" and/or "comprising" and/or "having," integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, regions, integers, steps, operations, elements, and/or groups thereof.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Furthermore, unless the context clearly defines otherwise, terms such as those defined in a general dictionary should be construed to have meanings consistent with their meanings in the relevant art and the present application, and should not be construed as idealized or overly formal meanings.

The following detailed description of specific embodiments of the present application refers to the accompanying drawings.

Referring to fig. 1 and 2, the present application provides a polarized lens structure 100, which includes a lens holder 30, wherein the lens holder 30 includes a first surface 31 and a second surface 32 disposed opposite to each other. The polarized lens structure 100 further includes a plurality of first lens portions 10, a plurality of second lens portions 20, and a plurality of light-transmitting grooves 40, wherein the plurality of first lens portions 10 are disposed on the first surface 31 side by side along the first direction X, the plurality of second lens portions 20 are disposed on the first surface 31 side by side along the first direction X, the plurality of light-transmitting grooves 40 are disposed side by side along the first direction X, the plurality of light-transmitting grooves 40 penetrate the lens holder 30 from the second surface 32, the light-transmitting grooves 40 are disposed corresponding to the first lens portions 10 or the second lens portions 20, and the light-transmitting grooves 40 are used for accommodating the light-emitting elements 50. The plurality of first lens portions 10 and the plurality of second lens portions 20 are disposed opposite to each other along the first direction X, the first lens portions 10 are configured to direct the light emitted from the light emitting element 50 to project toward one side of the second lens portions 20, and the second lens portions 20 are configured to direct the light emitted from the light emitting element 50 to project toward one side of the first lens portions 10.

Specifically, the lens holder 30 is disposed in a square structure, the direction in which the length of the lens holder 30 is located is the first direction X, and the first surface 31 and the second surface 32 are both planar structures and disposed parallel to each other. The plurality of first lens portions 10 and the plurality of second lens portions 20 are arranged side by side along the first direction X, and the pitch of any two adjacent first lens portions 10 is the same, and the pitch of any two adjacent second lens portions 20 is the same, so that the total illumination surface formed by the light emitting elements 50 mounted in the respective light transmission grooves 40 is ensured to be more uniform. The first lens portion 10 and the second lens portion 20 are lenses such that most of the light passing through the first lens portion 10 and the second lens portion 20 is refracted.

In particular, the structure of the first lens portion 10 is substantially the same as that of the second lens portion 20, but the size of the first lens portion 10 is slightly larger than that of the second lens portion 20, and the second lens portion 20 disposed opposite to the first lens portion 10 is disposed substantially in an "eight" shape on the first surface 31, so that light can be better guided. Of course, the dimensions of the first lens portion 10 and the second lens portion 20 may be set to be the same, and the distribution of the first lens portion 10 and the corresponding second lens portion 20 on the first surface 31 may also be set to be other forms, such as a relatively parallel arrangement. The light-transmitting groove 40 penetrates through the lens holder 30 from the second surface 32 and then communicates with the first lens portion 10 or the second lens portion 20, so that more light emitted by the light-emitting element 50 in the light-transmitting groove 40 can be projected to the outside through the first lens portion 10 or the second lens portion 20.

It should be noted that, taking any one of the first lens portions 10 as an example, the farther the illumination position reached by the light emitted by the light emitting element 50 is from the first lens portion 10 along the first direction X, the more light projected through the first lens portion 10 is projected toward the illumination position, so as to increase the illumination intensity of the illumination position, and make the illumination surface formed by the light emitting element 50 passing through the first lens portion 10 more uniform. Accordingly, there is one second lens portion 20 among the plurality of second lens portions 20 corresponding to the first lens portion 10, so that the light emitted from the light emitting element 50 corresponding to the second lens portion 20 can be projected more toward the first lens portion 10 side according to the above principle, thereby ensuring uniformity of the illumination surface formed by the entire polarized lens structure 100.

By arranging the plurality of first lens portions 10 and the plurality of second lens portions 20 on the first surface 31 of the lens holder 30 in a manner of being opposite to each other, and arranging the plurality of light-transmitting grooves 40 for mounting the light-emitting elements 50 on the second surface 32 of the lens holder 30, light emitted by the light-emitting elements 50 passes through the light-transmitting grooves 40 and then is projected outwards through the first lens portions 10 and the second lens portions 20, wherein the first lens portions 10 can project more light to one side of the second lens portions 20, the second lens portions 20 can project more light to one side of the first lens portions 10, the illumination intensity at the edge of the illumination surface is enhanced, and the uniformity of the illumination intensity of the whole illumination surface is improved.

Referring to fig. 3 and fig. 4, the first lens portion 10 includes a first inclined surface body 11 and a first curved surface body 12, and the first inclined surface body 11 is connected to the first curved surface body 12 and is configured as an integral structure. In an embodiment, the first curved surface 12 is disposed on a side of the first inclined surface 11 near the second lens portion 20. The first inclined surface body 11 is substantially arranged in a triangular prism structure, and is used for projecting more light emitted by the light emitting element 50 towards one side of the first curved surface body 12. The first curved surface body 12 extends from the first surface 31 of the lens holder 30 to a side of the first inclined surface body 11 near the first curved surface body 12, so that the light passing through the whole curved surface of the first curved surface body 12 can be projected relatively intensively toward the same area.

Specifically, the first slope body 11 includes a first slope 111, and the first slope 111 is disposed obliquely toward a side facing away from the first curved body 12. When some embodiments are used, the first inclined surface 111 is located on a side of the first inclined surface body 11 near the first curved surface body 12. The first inclined surface body 11 further includes a first back surface 112, the first back surface 112 is disposed on a side of the first inclined surface body 11 facing away from the first curved surface body 12, and the first back surface 112 is inclined toward a side of the first inclined surface 111. When the first back 112 is obliquely arranged, the included angle between the first back 112 and the vertical surface is smaller, so that when part of light reaches the first back 112, the incident angle of the light can be larger than the critical angle of total reflection of the first back 112, the light is totally reflected, and then the light with total reflection can be projected towards one side of the first inclined plane 111, so that excessive light is prevented from being projected towards one side deviating from the first inclined plane 111 after being refracted through the first inclined plane 111.

In particular, the first back surface 112 is curved with a smaller degree of curvature, and the first back surface 112 is curved toward a side near the first inclined surface 111 to better guide the light so that the light passing through the first back surface 112 can be collected.

Further, the first curved surface body 12 includes a first curved surface area 121 and a second curved surface area 122, and the first inclined surface body 11 is connected to the second curved surface area 122 through the first curved surface area 121, and the curvature of the first curved surface area 121 is smaller than the curvature of the second curved surface area 122. When some embodiments are adopted, the first curved surface area portion 121 is disposed between the second curved surface area portion 122 and the first inclined surface body 11, and the arc center angle corresponding to the first curved surface area portion 121 is greater than the arc center angle corresponding to the second curved surface area portion 122, so that light can be projected after passing through the first curved surface area portion 121 more, and the asymmetric structure can enable light type distribution to be more suitable, and improve the light utilization rate. Since the arc center angle corresponding to the first curved surface area 121 is greater than the arc center angle corresponding to the second curved surface area 122, the curvature of the first curved surface area 121 is set smaller than the curvature of the second curved surface area 122, so that light rays can better project towards one side of the second curved surface area 122 when passing through the first curved surface area 121, and light rays passing through the second curved surface area 122 can also project towards one side of the first curved surface area 121, so that light rays passing through the first curved surface 12 can be concentrated and projected towards one area after being refracted.

Referring to fig. 3, the second lens portion 20 includes a second inclined surface body 21 and a second curved surface body 22, where the second inclined surface body 21 is connected to the second curved surface body 22 and is configured in an integrally formed structure; the second curved surface body 22 is disposed on a side of the second inclined surface body 21 close to the first lens portion 10. In an embodiment, the second inclined surface body 21 is substantially configured in a triangular prism structure, and is used for projecting the light emitted by the light emitting element 50 more toward one side of the second curved surface body 22. The second curved surface body 22 extends from the first surface 31 of the lens holder 30 to a side of the second inclined surface body 21 near the second curved surface body 22, so that the light passing through the whole curved surface of the second curved surface body 22 can be projected more intensively toward the same area.

Further, the second inclined surface body 21 includes a second inclined surface 211, and the second inclined surface 211 is inclined toward a side facing away from the second curved surface body 22. When some embodiments are used, the second inclined surface 211 is located on a side of the second inclined surface body 21 near the second curved surface body 22. The second inclined surface body 21 further includes a second back surface 212, the second back surface 212 is disposed on a side of the second inclined surface body 21 facing away from the second curved surface body 22, and the second back surface 212 is inclined toward a side of the second inclined surface 211. When the second back 212 is obliquely arranged, the included angle between the second back 212 and the vertical surface is smaller, so that when part of light reaches the second back 212, the incident angle of the light can be larger than the critical angle of total reflection of the second back 212, the light is totally reflected, and then the light with total reflection can be projected towards one side of the second inclined plane 211, so that excessive light is prevented from being projected towards one side deviating from the second inclined plane 211 after being refracted through the second inclined plane 211.

In particular, the second back surface 212 is curved with a smaller degree of curvature, and the second back surface 212 is curved toward a side near the second inclined surface 211 to better guide the light so that the light passing through the second back surface 212 can be collected.

Further, the second curved surface body 22 includes a third curved surface area 221 and a fourth curved surface area 222, the second inclined surface body 21 is connected to the fourth curved surface area 222 through the third curved surface area 221, and the curvature of the third curved surface area 221 is smaller than the curvature of the fourth curved surface area 222. When some embodiments are adopted, the arc center angle corresponding to the third curved surface area 221 is greater than the arc center angle corresponding to the fourth curved surface area 222, so that the light can be projected after passing through the third curved surface area 221 more. Since the arc center angle corresponding to the third curved surface area 221 is greater than the arc center angle corresponding to the fourth curved surface area 222, the curvature of the third curved surface area 221 is set smaller than the curvature of the fourth curved surface area 222, so that light rays can better project towards one side of the fourth curved surface area 222 when passing through the third curved surface area 221, and light rays passing through the fourth curved surface area 222 can also project towards one side of the third curved surface area 221, so that light rays passing through the second curved surface 22 can be concentrated to one area after being refracted.

Referring to fig. 4 again and referring to fig. 2, the light-transmitting groove 40 is disposed in a curved structure, and the light-transmitting groove 40 is opened from the second surface 32 to communicate with the first lens portion 10 or the second lens portion 20. In one embodiment, the light-transmitting grooves 40 are arranged in a hemispherical structure. Taking the light-transmitting groove 40 corresponding to the first lens portion 10 as an example, the top end of the light-transmitting groove 40 is located between the first inclined surface body 11 and the first curved surface body 12. The light emitting part 50 is placed in the light transmission groove 40, and light emitted by the light emitting part 50 can be folded relatively after passing through the curved surface of the light transmission groove 40, so that more light can be projected through the first lens part 10, more light can pass through the first inclined plane 111 and the first curved surface area 121, light type distribution is more reasonable, and the light utilization rate is improved.

Referring to fig. 5, the embodiment of the present application further provides a lighting device 200, which adopts the polarized lens structure 100, and the lighting device 200 includes a plurality of light emitting elements 50, wherein the plurality of light emitting elements 50 are respectively disposed in the plurality of light-transmitting grooves 40. The light emitting element 50 is preferably an LED light emitting chip, and of course, the light emitting element 50 may be other components having a light emitting function.

The following applies to the lighting device 200 provided in the present embodiment:

as shown in fig. 6, fig. 6 is a schematic view of the light distribution pattern of the lighting device 200, and it can be seen that the uniformity of the projected illumination surface is good, and the utilization rate of light is also high.

As shown in fig. 7, fig. 7 is a schematic diagram of a light distribution curve of the lighting device 200, in which more light emitted from the light emitting element 50 is projected to the range of-60 ° to 75 °, and the illumination intensity in the range of 30 ° to 75 ° is stronger, and in which the illumination surface of the light emitted from the light emitting element 50 is wider and the illumination intensity in the edge region of the illumination surface is also higher.

Referring to fig. 8, the embodiment of the present application further provides a desk lamp 300, including a lighting device 200. It is understood that the lighting device 200 may be applied to not only the desk lamp 300 but also a lighting lamp, a flashlight, a street lamp, a car lamp, and the like.

Hereinabove, the specific embodiments of the present application are described with reference to the accompanying drawings. However, those of ordinary skill in the art will appreciate that various modifications and substitutions can be made to the specific embodiments of the present application without departing from the scope thereof. Such modifications and substitutions are intended to be within the scope of the present application.

Claims (10)

1. A polarized lens structure comprises a lens seat, wherein the lens seat comprises a first surface and a second surface which are oppositely arranged; the polarized lens structure is characterized by further comprising:

a plurality of first lens portions disposed side by side on the first surface along a first direction;

a plurality of second lens portions disposed side by side on the first surface along a first direction;

the plurality of light-transmitting grooves are arranged side by side along the first direction, penetrate through the lens seat from the second surface, are arranged corresponding to the first lens part or the second lens part, and are used for accommodating luminous elements;

the first lens portions and the second lens portions are arranged opposite to each other along the first direction, the first lens portions are used for guiding light rays emitted by the light emitting element to project towards one side of the second lens portions, and the second lens portions are used for guiding light rays emitted by the light emitting element to project towards one side of the first lens portions.

2. The polarized lens structure of claim 1, wherein the first lens portion comprises a first beveled body and a first curved body, the first beveled body being connected to the first curved body and being configured as an integrally molded structure.

3. The polarized lens structure according to claim 2, wherein the first curved surface body is disposed on a side of the first inclined surface body adjacent to the second lens portion.

4. The polarized lens structure of claim 2, wherein the first beveled body comprises a first beveled surface disposed obliquely toward a side facing away from the first curved body.

5. The polarized lens structure according to claim 2, wherein the first curved surface body comprises a first curved surface section and a second curved surface section, the first inclined surface body being connected to the second curved surface section through the first curved surface section, the curvature of the first curved surface section being smaller than the curvature of the second curved surface section.

6. The polarized lens structure according to claim 1, wherein the second lens portion comprises a second inclined surface body and a second curved surface body, and the second inclined surface body is connected with the second curved surface body and is provided in an integrally molded structure; the second curved surface body is arranged on one side, close to the first lens part, of the second inclined surface body.

7. The polarized lens structure according to claim 6, wherein the second bevel body comprises a second bevel, the second bevel being disposed obliquely toward a side facing away from the second curved body; the second curved surface body comprises a third curved surface area part and a fourth curved surface area part, the second inclined surface body is connected with the fourth curved surface area part through the third curved surface area part, and the curvature of the third curved surface area part is smaller than that of the fourth curved surface area part.

8. The polarized lens structure according to claim 1, wherein the light-transmitting groove is disposed in a curved configuration, and the light-transmitting groove is opened from the second surface to communicate with the first lens portion or the second lens portion.

9. A lighting device, characterized in that the polarized lens structure of any one of claims 1 to 8 is adopted, the lighting device comprises a plurality of light emitting elements, and the plurality of light emitting elements are respectively and correspondingly arranged in a plurality of light transmission grooves.

10. A desk lamp comprising the lighting device of claim 9.

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