Lighting

Abstract

The present invention provides a lamp. The lamp comprises: a base; a light-emitting portion, which is arranged on the base, and the light-emitting portion comprises a first light-emitting structure and a second light-emitting structure; a first lens, which comprises a first light-entering surface and a first light-emitting surface, the first light-emitting structure is arranged corresponding to the first light-entering surface, and a first polarizing structure is arranged on the first light-emitting surface, so that the light emitted by the first light-emitting structure passes through the first polarizing structure and is polarized in a direction of the first light-emitting structure away from the second light-emitting structure; a second lens, which comprises a second light-entering surface and a second light-emitting surface, the second light-emitting structure is arranged corresponding to the second light-entering surface, and a second polarizing structure is arranged on the second light-emitting surface, so that the light emitted by the second light-emitting structure passes through the second polarizing structure and is polarized in a direction of the second light-emitting structure away from the first light-emitting structure. The technical solution of the present invention can be applied to solve the problem of uneven brightness of light when a user plays the piano in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting fixtures, and in particular to a lighting fixture. Background Art

[0002] Since the piano key area is long, if the keys and music area are to be fully illuminated, the lighting fixture needs to be placed at a height of about 70cm from the keys. Many manufacturers and users use floor lamps, table lamps and other lamps to replace dedicated piano lamps. This is unreasonable and does not fully consider the specific usage scenarios of the piano and the user's requirements for light when using the piano.

[0003] In the related art, since most floor lamps are distributed in a circular symmetry, the large angles are prone to direct glare and insufficient brightness. If the wattage of the light source is increased, when the brightness is high enough, the direct glare is even more serious. Even for ordinary long-shaped table lamps, the light angle is large and the intensity distribution is unreasonable. The bright area is concentrated in the upper part of the score, and the light reaches the lower part of the score and the light on the keys. The illumination is uneven, and long-term use will cause the performer's vision fatigue or even decline. Summary of the invention

[0004] The main purpose of the present invention is to provide a lamp to solve the problem of uneven brightness of light when a user plays the piano in the prior art.

[0005] In order to achieve the above-mentioned objectives, the present invention provides a lamp, comprising: a substrate; a light-emitting portion, which is arranged on the substrate, and the light-emitting portion comprises a first light-emitting structure and a second light-emitting structure; a first lens, which comprises a first light-entry surface and a first light-emitting surface, the first light-emitting structure is arranged corresponding to the first light-entry surface, and a first polarizing structure is provided on the first light-emitting surface, so that the light emitted by the first light-emitting structure passes through the first polarizing structure and is polarized in a direction of the first light-emitting structure away from the second light-emitting structure; a second lens, which comprises a second light-entry surface and a second light-emitting surface, the second light-emitting structure is arranged corresponding to the second light-entry surface, and a second polarizing structure is provided on the second light-emitting surface, so that the light emitted by the second light-emitting structure passes through the second polarizing structure and is polarized in a direction of the second light-emitting structure away from the first light-emitting structure.

[0006] Furthermore, the light-emitting portion also includes a middle light-emitting structure arranged between the first light-emitting structure and the second light-emitting structure, and the light-emitting direction of the middle light-emitting structure is arranged at an angle to the vertical direction. The lamp also includes: a third lens, including a third light-entry surface and a third light-emitting surface, and the light-emitting portion is located on a side of the third lens close to the third light-entry surface; a third polarizing structure, arranged on the third light-emitting surface, and the light emitted by the middle light-emitting structure is polarized and focused after passing through the third polarizing structure.

[0007] Furthermore, the third polarization structure includes a first polarization segment and a second polarization segment, the polarization directions of the first polarization segment and the second polarization segment are opposite, the light emitted by the middle light-emitting structure passes through the first polarization segment and is polarized in a direction close to the second polarization segment, and the light emitted by the middle light-emitting structure passes through the second polarization segment and is polarized in a direction close to the first polarization segment.

[0008] Furthermore, the angle between the light emitting direction of the middle light emitting structure and the vertical direction is α, wherein 5°≤α≤25°.

[0009] Furthermore, the first polarization structure is a first eccentric arc surface structure or a first cylindrical structure, and the second polarization structure is a second eccentric arc surface structure or a second cylindrical structure.

[0010] Furthermore, the first polarization structure includes a plurality of first eccentric arc surface structures, or the first polarization structure includes a plurality of first cylindrical surface structures.

[0011] Furthermore, the third polarization structure is a third eccentric arc surface structure or a third cylindrical surface structure.

[0012] Further, the first polarizing structure is an eccentric arc surface structure, the curvature radius of the eccentric arc surface structure is r, the height of the eccentric arc surface structure is h, the refractive index of the first polarizing structure is n, and the deflection angle of the first polarizing structure is α, wherein the curvature radius r, the height h, the refractive index n and the deflection angle α satisfy the following relationship:

[0013]

[0014] Furthermore, the first lens and / or the second lens and / or the third lens are total reflection lenses.

[0015] Furthermore, the lamp also includes: a first control switch capable of controlling the switch and / or brightness of the first light-emitting structure; a second control switch capable of controlling the switch and / or brightness of the second light-emitting structure; and a third control switch capable of controlling the switch and / or brightness of the middle light-emitting structure.

[0016] By applying the technical solution of the present invention, a first polarizing structure is arranged on the first lens and a second polarizing structure is arranged on the second lens, so that the light emitted by the first light-emitting structure passes through the first polarizing structure and is polarized in a direction of the first light-emitting structure away from the second light-emitting structure, and the light emitted by the second light-emitting structure passes through the second polarizing structure and is polarized in a direction of the second light-emitting structure away from the first light-emitting structure, thereby achieving uniform distribution of the light of the lamp in the horizontal direction, achieving long strip laying of the light, and improving the laying length and uniformity of the light. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the exploded structure of an embodiment of a lamp according to the present invention is shown;

[0019] Figure 2 Shows Figure 1 A schematic diagram of the structure of the lamp;

[0020] Figure 3 Shows Figure 1 A schematic structural diagram of a first light-emitting structure and a first lens (wherein a first polarizing structure is shown);

[0021] Figure 4 Shows Figure 1 A schematic structural diagram of a second light-emitting structure and a second lens (wherein a second polarization structure is shown);

[0022] Figure 5 Shows Figure 1 A schematic diagram of the structure of the middle light-emitting structure and the third lens (wherein the third polarizing structure is shown);

[0023] Figure 6 Shows Figure 1 A schematic diagram of polarization angles of a first polarization structure;

[0024] Figure 7 Shows Figure 1 A polarization schematic diagram of a first polarization structure; and

[0025] Figure 8 Shows Figure 1 A side view of a lamp (wherein only the first light-emitting structure, the middle light-emitting structure, the first lens and the third lens are shown).

[0026] The above drawings include the following reference numerals:

[0027] 10. Light-emitting portion; 11. First light-emitting structure; 12. Second light-emitting structure; 13. Middle light-emitting structure; 20. First lens; 21. First light-entry surface; 22. First light-emitting surface; 31. First polarizing structure; 32. Second polarizing structure; 33. Third polarizing structure; 331. First polarizing segment; 332. Second polarizing segment; 40. Second lens; 41. Second light-entry surface; 42. Second light-emitting surface; 50. Third lens; 51. Third light-entry surface; 52. Third light-emitting surface. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0032] like Figures 1 to 4As shown, the present embodiment provides a lamp, including a substrate, a light-emitting unit 10, a first lens 20 and a second lens 40. The light-emitting unit 10 is arranged on the substrate, and the light-emitting unit 10 includes a first light-emitting structure 11 and a second light-emitting structure 12; the first lens 20 includes a first light-entering surface 21 and a first light-emitting surface 22, the first light-emitting structure 11 is arranged corresponding to the first light-entering surface 21, and a first polarizing structure 31 is arranged on the first light-emitting surface 22, so that the light emitted by the first light-emitting structure 11 passes through the first polarizing structure 31 and is polarized in a direction away from the second light-emitting structure 12 of the first light-emitting structure 11; the second lens 40 includes a second light-entering surface 41 and a second light-emitting surface 42, the second light-emitting structure 12 is arranged corresponding to the second light-entering surface 41, and a second polarizing structure 32 is arranged on the second light-emitting surface 42, so that the light emitted by the second light-emitting structure 12 passes through the second polarizing structure 32 and is polarized in a direction away from the first light-emitting structure 12 of the second light-emitting structure 11.

[0033] In this embodiment, since a first polarizing structure 31 is provided on the first lens 20 and a second polarizing structure 32 is provided on the second lens 40, the light emitted by the first light-emitting structure 11 passes through the first polarizing structure 31 and is polarized in a direction of the first light-emitting structure 11 away from the second light-emitting structure 12, and the light emitted by the second light-emitting structure 12 passes through the second polarizing structure 32 and is polarized in a direction of the second light-emitting structure 12 away from the first light-emitting structure 11, thereby achieving uniform distribution of the light of the lamp in the horizontal direction, achieving long strip laying of the light, and improving the laying length and uniformity of the light.

[0034] For special application scenarios, such as the use of a piano, the light needs to be laid out over a longer length in the horizontal direction and has higher requirements for the uniformity of the light. The lamp of this embodiment has particularly outstanding advantages, provides a better user experience, and is beneficial for protecting eyesight.

[0035] Preferably, if Figure 7 As shown, in this embodiment, the light emitted by the first light emitting structure 11 is completely deflected after passing through the first polarizing structure 31. Similarly, the light emitted by the second light emitting structure 12 is completely deflected after passing through the second polarizing structure 32.

[0036] like Figure 1 , Figure 2 and Figure 5As shown, in this embodiment, the light-emitting unit 10 further includes a middle light-emitting structure 13 disposed between the first light-emitting structure 11 and the second light-emitting structure 12, and the light-emitting direction of the middle light-emitting structure 13 is disposed at an angle to the vertical direction, and the lamp further includes a third lens 50 and a third polarizing structure 33. The third lens 50 includes a third light-entering surface 51 and a third light-emitting surface 52, and the light-emitting unit 10 is located on a side of the third lens 50 close to the third light-entering surface 51; the third polarizing structure 33 is disposed on the third light-emitting surface 52, and the light emitted by the middle light-emitting structure 13 is polarized and focused after passing through the third polarizing structure 33.

[0037] In this embodiment, since the middle light emitting structure 13 is provided, the light in the middle is enhanced, especially in the piano use environment, which can meet the user's requirements for using piano scores.

[0038] like Figure 8 As shown, in this embodiment, in a vertical plane, the light emitting direction of the first light emitting structure 11 and the second light emitting structure 12 is vertically downward, the light emitting direction of the middle light emitting structure 13 has an angle with the vertical direction, and the light emitting direction of the first light emitting structure 11 is set at an angle to the light emitting direction of the middle light emitting structure 13.

[0039] Through the above arrangement, the illumination angle of the central light-emitting structure 13 is deflected toward the direction of the music score, reducing the influence of the light of the central light-emitting structure 13 on the illumination of the central part of the keys, making the light on the entire keys uniform, reducing the reflected glare caused by the excessive brightness of the central area of ​​the keys, and at the same time, making the illumination on the keys and the music score close to the same, reducing eye fatigue caused by switching of sight lines.

[0040] like Figure 1 and Figure 5 As shown, in this embodiment, the third polarization structure 33 includes a first polarization segment 331 and a second polarization segment 332, and the polarization directions of the first polarization segment 331 and the second polarization segment 332 are opposite. The light emitted by the middle light-emitting structure 13 passes through the first polarization segment 331 and is polarized in a direction close to the second polarization segment 332, and the light emitted by the middle light-emitting structure 13 passes through the second polarization segment 332 and is polarized in a direction close to the first polarization segment 331.

[0041] Specifically, after the light emitted by the central light emitting structure 13 passes through the first polarization segment 331 and the second polarization segment 332 respectively, they are all polarized toward the middle, thereby achieving the gathering of the light emitted by the central light emitting structure 13 .

[0042] Furthermore, in this embodiment, the first polarization segment 331 and the second polarization segment 332 are arranged at intervals. When the light passes through the interval between the first polarization segment 331 and the second polarization segment 332, no polarization structure is arranged here, and the light can be directly emitted from the third lens 50. Through the above arrangement, the light emitted by the central light-emitting structure 13 is gathered in the horizontal direction under the action of the third lens 50 and the third polarization structure 33, and has high uniformity in the vertical direction, thereby improving the user experience.

[0043] like Figure 8 As shown, in this embodiment, the angle between the light emitting direction of the middle light emitting structure 13 and the vertical direction is α, wherein 5°≤α≤25°.

[0044] The above arrangement causes the light of the central light-emitting structure 13 to be deflected toward one side. In particular, when the lamp is applied to a piano, the light emitted by the central light-emitting structure 13 is deflected toward the direction of the music score, so that the light emitted by the central light-emitting structure 13 is concentrated on the music score. This can not only meet the light brightness requirements on the music score, but also effectively prevent the light emitted by the central light-emitting structure 13 from irradiating the keys and affecting the illumination of the central keys, thereby ensuring the uniformity of the light on the keys.

[0045] The angle α in this embodiment is preferably 15°.

[0046] Preferably, if Figure 2 As shown, the first polarizing structure 31 is a first eccentric arc surface structure, and the second polarizing structure 32 is a second eccentric arc surface structure.

[0047] Of course, in an alternative embodiment not shown in the drawings, the first polarization structure may also be a first cylindrical structure, and the second polarization structure may be a second cylindrical structure, as long as the requirements of the polarization angle can be met.

[0048] like Figure 2 As shown, in this embodiment, the first polarizing structure 31 includes a plurality of first eccentric arc surface structures.

[0049] The above arrangement improves the uniformity of polarization of the first polarization structure 31 and ensures uniform illumination of light in the horizontal direction.

[0050] like Figure 1 and Figure 2 As shown, in this embodiment, the third polarizing structure 33 is a third eccentric arc surface structure.

[0051] Of course, in an alternative embodiment not shown in the drawings, the third polarizing structure 33 may also be a third cylindrical structure.

[0052] Preferably, the first polarizing segment 331 and the second polarizing segment 332 both include a plurality of third eccentric arc surface structures, and the eccentric directions of the third eccentric arc surface structures of the first polarizing segment 331 and the third eccentric arc surface structures of the second polarizing segment 332 are opposite.

[0053] like Figure 6 As shown, in this embodiment, the first polarizing structure 31 is an eccentric arc surface structure, the curvature radius of the eccentric arc surface structure is r, the height of the eccentric arc surface structure is h, the refractive index of the first polarizing structure 31 is n, and the deflection angle of the first polarizing structure 31 is α, wherein the curvature radius r, the height h, the refractive index n and the deflection angle α satisfy the following relationship:

[0054]

[0055] The polarization angle range required in this embodiment is determined according to actual product requirements, generally small-angle polarization, α≤20°, and the curvature radius and height of the first polarization structure 31 are determined according to the deflection range of α.

[0056] In addition, the specific structures of the second polarizing structure 32 and the third polarizing structure 33 are set with reference to the setting method of the first polarizing structure 31 .

[0057] Preferably, the first lens 20 , the second lens 40 and the third lens 50 are total reflection lenses.

[0058] The total reflection lens has a simple structure. The light passing through the total reflection lens diverges in the horizontal direction and converges in the vertical direction, which can meet the use requirements of the lamp and has a low cost.

[0059] Furthermore, the lamp also includes: a first control switch capable of controlling the switch and brightness of the first light-emitting structure 11 ; a second control switch capable of controlling the switch and brightness of the second light-emitting structure 12 ; and a third control switch capable of controlling the switch and brightness of the middle light-emitting structure 13 .

[0060] Through the above arrangement, the switches and brightness of the first light-emitting structure 11, the second light-emitting structure 12 and the middle light-emitting structure 13 can be controlled individually, and users can adjust them according to their own needs, which has wide applicability and high user experience.

[0061] The technical solution of this embodiment is achieved by the following methods:

[0062] The light source of the lamp is divided into three sections: the first light-emitting structure, the second light-emitting structure and the middle light-emitting structure. The three light sources are respectively matched with lenses and polarized structures to accurately control the light, so as to realize the key lighting of the piano keys and music scores, as follows:

[0063] For the first light-emitting structure and the second light-emitting structure for illuminating the piano keys and the corresponding lens designs:

[0064] The first light-emitting structure is arranged corresponding to the first lens, and a first polarizing structure is arranged on the first light-emitting surface of the first lens. The second light-emitting structure is arranged corresponding to the second lens, and a second polarizing structure is arranged on the second light-emitting surface of the second lens, so that the light emitted by the first light-emitting structure and the second light-emitting structure are respectively polarized outward in the horizontal direction so that the light covers the keys, and converge the light in the vertical direction to concentrate the light to illuminate the keys.

[0065] Design of the central light-emitting structure for illuminating the music score and the corresponding lens:

[0066] The middle light-emitting structure is deflected at a certain angle toward the music score relative to the first light-emitting structure and the second light-emitting structure, so that the light emitted by the middle light-emitting structure can be irradiated on the music score as much as possible, ensuring the brightness of the music score, and avoiding the light emitted by the middle light-emitting structure from irradiating on the keys and affecting the uniformity of the pipelines on the keys.

[0067] The central light-emitting structure is arranged corresponding to the third lens, and a third polarizing structure is arranged on the third light-emitting surface of the third lens. The third polarizing structure includes a first polarizing segment and a second polarizing segment arranged at intervals. The first polarizing segment and the second polarizing segment have opposite polarization directions. The light emitted by the central light-emitting structure is close to each other after passing through the first polarizing segment and the second polarizing segment, thereby achieving the effect of converging light in the horizontal direction. At the same time, since the third lens itself has a converging effect on the light in the vertical direction, the effect of concentrating light to illuminate the music score is achieved.

[0068] Through the above settings, due to the polarization design in the horizontal direction, the middle light is deflected to the edge of the keys, the illumination of the edge of the keys is improved, and the uniformity of the light on the keys is ensured. The light sources of the keys and the music score are separated, so that the illumination of the keys and the music score is almost the same. Since the light sources of the keys and the music score are controlled separately, the illumination of the two is close by adjusting the power of the two, which optimizes the user's eye environment.

[0069] At the same time, the technical solution of this embodiment adopts the design of lens light collection and physical light interception to achieve the purpose of anti-glare.

[0070] Therefore, the technical solution of the present invention has the following advantages:

[0071] Appropriate illumination provides a comfortable anti-glare experience;

[0072] High illumination uniformity on the keys (the illumination ratio between the keys and the music sheet is within 3), reducing the reflected glare caused by the over-brightness in the middle of the keys;

[0073] The almost identical illumination of the piano keys and music sheet reduces eye fatigue caused by switching lines of sight.

[0074] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0075] Since the first polarizing structure is arranged on the first lens and the second polarizing structure is arranged on the second lens, the light emitted by the first light-emitting structure passes through the first polarizing structure and is polarized in a direction of the first light-emitting structure away from the second light-emitting structure, and the light emitted by the second light-emitting structure passes through the second polarizing structure and is polarized in a direction of the second light-emitting structure away from the first light-emitting structure, thereby achieving uniform distribution of the light of the lamp in the horizontal direction, achieving long strip laying of the light, and improving the laying length and uniformity of the light.

[0076] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0077] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lamp, characterized in that: include: matrix; A light-emitting portion (10) is arranged on the substrate, the light-emitting portion (10) comprising a first light-emitting structure (11), a second light-emitting structure (12), and a middle light-emitting structure (13) arranged between the first light-emitting structure (11) and the second light-emitting structure (12), the light-emitting direction of the middle light-emitting structure (13) being arranged at an angle to the vertical direction; A first lens (20) comprising a first light incident surface (21) and a first light emitting surface (22), wherein the first light emitting structure (11) is arranged corresponding to the first light incident surface (21), and the first light emitting surface (22) is provided with a first polarizing structure (31), so that light emitted by the first light emitting structure (11) passes through the first polarizing structure (31) and is polarized in a direction away from the second light emitting structure (12) and toward the first light emitting structure (11); a second lens (40) comprising a second light incident surface (41) and a second light emitting surface (42); the second light emitting structure (12) is arranged corresponding to the second light incident surface (41); and the second light emitting surface (42) is provided with a second polarizing structure (32) so that light emitted by the second light emitting structure (12) passes through the second polarizing structure (32) and is polarized in a direction away from the first light emitting structure (11) and toward the second light emitting structure (12); A third lens (50) comprising a third light incident surface (51) and a third light emitting surface (52), wherein the light emitting portion (10) is located on a side of the third lens (50) close to the third light incident surface (51); The third polarizing structure (33) is arranged on the third light emitting surface (52), and the light emitted by the middle light emitting structure (13) is polarized and focused after passing through the third polarizing structure (33).

2. The lamp according to claim 1, characterized in that: The third polarizing structure (33) comprises a first polarizing segment (331) and a second polarizing segment (332); the polarizing directions of the first polarizing segment (331) and the second polarizing segment (332) are opposite; the light emitted by the middle light-emitting structure (13) passes through the first polarizing segment (331) and is polarized in a direction close to the second polarizing segment (332); and the light emitted by the middle light-emitting structure (13) passes through the second polarizing segment (332) and is polarized in a direction close to the first polarizing segment (331).

3. The lamp according to claim 1, characterized in that: The angle between the light emitting direction of the middle light emitting structure (13) and the vertical direction is α, wherein 5°≤α≤25°.

4. The lamp according to claim 1, characterized in that: The first polarizing structure (31) is a first eccentric arc surface structure or a first cylindrical surface structure, and the second polarizing structure (32) is a second eccentric arc surface structure or a second cylindrical surface structure.

5. The lamp according to claim 4, characterized in that: The first polarizing structure (31) includes a plurality of the first eccentric arc surface structures, or the first polarizing structure (31) includes a plurality of the first cylindrical surface structures.

6. The lamp according to claim 1, characterized in that: The third polarizing structure (33) is a third eccentric arc surface structure or a third cylindrical surface structure.

7. The lamp according to claim 1, characterized in that: The first polarizing structure (31) is an eccentric arc surface structure, the curvature radius of the eccentric arc surface structure is r, the height of the eccentric arc surface structure is h, the refractive index of the first polarizing structure (31) is n, and the deflection angle of the first polarizing structure (31) is α, wherein the curvature radius r, the height h, the refractive index n and the deflection angle α satisfy the following relationship:

8. The lamp according to claim 1, characterized in that: The first lens (20) and / or the second lens (40) and / or the third lens (50) are total reflection lenses.

9. The lamp according to claim 1, characterized in that: The lamp also includes: a first control switch capable of controlling the switch and / or brightness of the first light-emitting structure (11); a second control switch capable of controlling the switching and / or brightness of the second light-emitting structure (12); The third control switch is capable of controlling the switch and / or brightness of the middle light-emitting structure (13).

Images