CN215597081U - Lamp fitting - Google Patents

Abstract

The utility model provides a lamp. The lamp comprises: a substrate; the luminous part is arranged on the base body and comprises a first luminous structure, a second luminous structure and a middle luminous structure, and an included angle is formed between the luminous direction of the middle luminous structure and the luminous direction of the first luminous structure and/or the second luminous structure. By applying the technical scheme of the utility model, the problem of uneven brightness of lamplight when a user plays a piano in the prior art can be solved.

Description

Lamp fitting

Technical Field

The utility model relates to the technical field of lighting lamps, in particular to a lamp.

Background

Since the key area of the piano is long, the lighting fixture needs to be placed at a height of about 70cm from the keys if the keys and the score area are all illuminated. Many manufacturers and users adopt lamps such as floor lamps and desk lamps to replace special piano lamps, so that the use is unreasonable, and the specific use scene of the piano and the requirements of the users on light rays when the pianos are used are not fully considered.

In the related art, since the floor lamps are mostly distributed circularly and symmetrically, the angle is large, direct glare is easily generated, and the brightness is insufficient, and if the wattage of the light source is increased, the direct glare is more serious when the brightness is high enough. Even if the table lamp is a common strip-shaped table lamp, the luminous angle is large, the intensity distribution is unreasonable, the bright area is concentrated on the upper half part of the music score, the light reaches the lower half part of the music score, and the illuminance on the keys is uneven, so that the visual fatigue of a player is caused even the player is reduced after long-term use.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a lamp to solve the problem that in the prior art, the brightness of light is not uniform when a user plays a piano.

In order to achieve the above object, the present invention provides a lamp including: a substrate; the luminous part is arranged on the base body and comprises a first luminous structure, a second luminous structure and a middle luminous structure, and an included angle is formed between the luminous direction of the middle luminous structure and the luminous direction of the first luminous structure and/or the second luminous structure.

Further, the luminaire further comprises: the first lens comprises a first light incoming surface and a first light outgoing surface, the first light emitting structure is arranged corresponding to the first light incoming surface, and a first polarization structure is arranged on the first light outgoing surface so that light rays emitted by the first light emitting structure pass through the first polarization structure and are polarized towards the direction of the first light emitting structure, which is far away from the second light emitting structure; and the second lens comprises a second light incident surface and a second light emergent surface, the second light emitting structure and the second light incident surface are correspondingly arranged, and a second polarization structure is arranged on the second light emergent surface so that light rays emitted by the second light emitting structure pass through the second polarization structure and are polarized towards the direction of the second light emitting structure, which is far away from the first light emitting structure.

Further, the luminaire further comprises: the third lens comprises a third light incident surface and a third light emergent surface, and the light emitting part is positioned on one side of the third lens, which is close to the third light incident surface; and the third light-polarizing structure is arranged on the third light-emitting surface, and light rays emitted by the middle light-emitting structure are gathered after passing through the third light-polarizing structure.

Furthermore, the third polarization structure comprises a first polarization section and a second polarization section, the polarization directions of the first polarization section and the second polarization section are opposite, light emitted by the middle light-emitting structure passes through the first polarization section and is polarized towards the direction close to the second polarization section, and light emitted by the middle light-emitting structure passes through the second polarization section and is polarized towards the direction close to the first polarization section.

Furthermore, the included angle between the light-emitting direction of the middle light-emitting structure and the vertical direction is alpha, wherein the alpha is more than or equal to 5 degrees and less than or equal to 25 degrees.

Further, the first polarization structure is a first eccentric arc structure or a first cylindrical structure, and the second polarization structure is a second eccentric arc structure or a second cylindrical structure.

Further, the first polarization structure includes a plurality of first eccentric arc structures, or the first polarization structure includes a plurality of first cylindrical structures.

Further, the first polarization structure is an eccentric arc structure, the curvature radius of the eccentric arc structure is r, the height of the eccentric arc structure is h, the refractive index of the first polarization structure is n, and the deflection angle of the first polarization structure is α, wherein the curvature radius r, the height h, the refractive index n, and the deflection angle α satisfy the following relationships:

further, the first lens and/or the second lens and/or the third lens are total reflection lenses.

Further, the luminaire further comprises: a first control switch capable of controlling switching and/or brightness of the first light emitting structure; a second control switch capable of controlling the on/off and/or brightness of the second light emitting structure; and a third control switch capable of controlling the on/off and/or brightness of the middle light emitting structure.

By applying the technical scheme of the utility model, the first polarization structure is arranged on the first lens, and the second polarization structure is arranged on the second lens, so that light emitted by the first light-emitting structure passes through the first polarization structure and is polarized towards the direction of the first light-emitting structure, which is far away from the second light-emitting structure, and light emitted by the second light-emitting structure passes through the second polarization structure and is polarized towards the direction of the second light-emitting structure, which is far away from the first light-emitting structure, so that the uniform distribution of light of the lamp in the horizontal direction is realized, the long-strip laying of the light is realized, and the laying length and uniformity of the light are improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 shows an exploded structural schematic view of an embodiment of a luminaire according to the utility model;

FIG. 2 shows a schematic structural view of the luminaire of FIG. 1;

fig. 3 shows a schematic structural view of the first light emitting structure and the first lens of fig. 1 (wherein, a first polarization structure is shown);

fig. 4 illustrates a schematic structure of the second light emitting structure and the second lens of fig. 1 (in which a second polarization structure is illustrated);

FIG. 5 shows a schematic structure diagram of the middle light emitting structure and a third lens of FIG. 1 (where a third polarization structure is shown);

fig. 6 shows a schematic diagram of the polarization angles of the first polarization structure of fig. 1;

FIG. 7 shows a polarization diagram of the first polarization structure of FIG. 1; and

fig. 8 shows a side view of the luminaire of fig. 1 (where only the first light emitting structure, the middle light emitting structure, the first lens and the third lens are shown).

Wherein the figures include the following reference numerals:

10. a light emitting section; 11. a first light emitting structure; 12. a second light emitting structure; 13. a middle light-emitting structure; 20. a first lens; 21. a first light incident surface; 22. a first light emitting surface; 31. a first polarizing structure; 32. a second polarizing structure; 33. a third polarizing structure; 331. a first polarizing section; 332. a second polarizing section; 40. a second lens; 41. a second light incident surface; 42. a second light emitting surface; 50. a third lens; 51. a third light incident surface; 52. and a third light emitting surface.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

As shown in fig. 1 to 4, the present embodiment provides a lamp including a base body, a light emitting portion 10, a first lens 20, and a second lens 40. The light emitting part 10 is disposed on the substrate, the light emitting part 10 includes a first light emitting structure 11, a second light emitting structure 12 and a middle light emitting structure 13, and an included angle is formed between a light emitting direction of the middle light emitting structure 13 and light emitting directions of the first light emitting structure 11 and the second light emitting structure 13.

In this embodiment, the light emitting directions of the first light emitting structure 11 and the second light emitting structure 12 are the same, and the light emitting direction of the middle light emitting structure 13 is deflected to a certain degree relative to the first light emitting structure 11 and the second light emitting structure 12, so as to reduce the influence of the light emitted by the middle light emitting structure 13 on the illuminance of the middle portion of the light receiving structure, so that the light on the whole light receiving structure is uniform, and the reflection glare caused by over-lighting of the middle area of the light receiving structure is reduced.

Specifically, the light fixture in the present embodiment is particularly suitable for use when playing a piano, as shown in fig. 8, the light emitting directions of the first light emitting structure 11 and the second light emitting structure 12 emit light 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 and the light emitting direction of the middle light emitting structure 13 are arranged at an angle.

Through the setting, the illumination angle that makes middle part light emitting structure 13 deflects towards the musical instrument spectrum direction, reduces the influence of middle part light emitting structure 13's light to the illuminance of key middle part, makes the even unanimity of light on the whole key, has reduced the reflection glare that leads to because of the middle part region of key is bright, simultaneously, makes the illuminance on key and the musical instrument spectrum be close unanimously, has alleviateed because of the eye fatigue that the sight switching leads to.

As shown in fig. 1 and fig. 2, in the present embodiment, the first lens 20 includes a first light incident surface 21 and a first light emitting surface 22, the first light emitting structure 11 is disposed corresponding to the first light incident surface 21, and the first light emitting surface 22 is disposed with a first polarization structure 31, so that light emitted by the first light emitting structure 11 passes through the first polarization structure 31 and is polarized towards a direction of the first light emitting structure 11 away from the second light emitting structure 12; the second lens 40 includes a second light incident surface 41 and a second light emitting surface 42, the second light emitting structure 12 is disposed corresponding to the second light incident surface 41, and the second light emitting surface 42 is disposed with a second polarization structure 32, so that the light emitted by the second light emitting structure 12 passes through the second polarization structure 32 and is polarized towards a direction of the second light emitting structure 12 away from the first light emitting structure 11.

In this embodiment, because first polarisation structure 31 has been set up on first lens 20, second polarisation structure 32 has been set up on second lens 40, thereby make the light that first light-emitting structure 11 sent through first polarisation structure 31 and towards the direction polarisation of keeping away from second light-emitting structure 12 of first light-emitting structure 11, the light that second light-emitting structure 12 sent is through second polarisation structure 32 and towards the direction polarisation of keeping away from first light-emitting structure 11 of second light-emitting structure 12, and then the even distribution of the lamp light of lamps and lanterns on the horizontal direction has been realized, the rectangular shape of lamp light is laid, the laying length and the homogeneity of lamp light have been improved.

To in the special application scene, under the piano service conditions, need the laying length of light great, to the even uniformity requirement of light higher on the horizontal direction, the lamps and lanterns advantage of this embodiment is especially outstanding, and user's use experience is felt better, is favorable to protecting eyesight.

Preferably, as shown in fig. 7, in the present embodiment, all the light emitted from the first light emitting structure 11 is deflected after passing through the first polarization structure 31. Similarly, the light emitted from the second light emitting structure 12 is totally deflected after passing through the second polarization structure 32.

As shown in fig. 1, fig. 2 and fig. 5, in the present embodiment, the light emitting portion 10 further includes a middle light emitting structure 13 disposed between the first light emitting structure 11 and the second light emitting structure 12, a light emitting direction of the middle light emitting structure 13 is disposed at an angle with respect to a vertical direction, and the lamp further includes a third lens 50 and a third polarization structure 33. The third lens 50 includes a third light incident surface 51 and a third light emitting surface 52, and the light emitting part 10 is located on a side of the third lens 50 close to the third light incident surface 51; the third polarization structure 33 is disposed on the third light-emitting surface 52, and the light emitted by the middle light-emitting structure 13 passes through the third polarization structure 33 and then is polarized and gathered.

In the embodiment, the middle light-emitting structure 13 is arranged, so that the light in the middle is enhanced, and especially in the use environment of a piano, the requirement of a user on using a piano score can be met.

As shown in fig. 1 and 5, in the present embodiment, the third polarization structure 33 includes a first polarization section 331 and a second polarization section 332, polarization directions of the first polarization section 331 and the second polarization section 332 are opposite, light emitted from the middle light-emitting structure 13 passes through the first polarization section 331 and is polarized toward a direction close to the second polarization section 332, and light emitted from the middle light-emitting structure 13 passes through the second polarization section 332 and is polarized toward a direction close to the first polarization section 331.

Specifically, the light emitted from the middle light-emitting structure 13 passes through the first polarizing section 331 and the second polarizing section 332, and is polarized towards the middle, so that the light emitted from the middle light-emitting structure 13 is gathered.

Further, the first polarizing section 331 and the second polarizing section 332 in this embodiment are disposed at an interval, and when the light passes through the interval between the first polarizing section 331 and the second polarizing section 332, no polarizing structure is disposed therein, and the light directly passes through the third lens 50 and is directly emitted. Through the above arrangement, the light emitted by the middle light-emitting structure 13 is gathered in the horizontal direction under the action of the third lens 50 and the third polarizing structure 33, the uniformity in the vertical direction is high, and the use experience of a user is improved.

As shown in fig. 8, in the present embodiment, an included angle between the light emitting direction of the middle light emitting structure 13 and the vertical direction is α, wherein α is greater than or equal to 5 ° and less than or equal to 25 °.

Above-mentioned setting makes middle part light emitting structure 13's light deflect towards one side, especially when using lamps and lanterns on the piano, the light that middle part light emitting structure 13 sent deflects towards the musical instrument register for easy reference direction to the light that makes middle part light emitting structure 13 send concentrates on the musical instrument register for easy reference, can enough satisfy the light luminance requirement on the musical instrument register for easy reference, can prevent effectively again that light that middle part light emitting structure 13 sent from shining to the key on, influence the illuminance of middle part key, guaranteed the even uniformity of light on the key.

The angle α in the present embodiment is preferably 15 °.

Preferably, as shown in fig. 2, the first polarization structure 31 is a first eccentric arc structure, and the second polarization structure 32 is a second eccentric arc structure.

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 requirement of the polarization angle can be met.

As shown in fig. 2, in the present embodiment, the first polarization structure 31 includes a plurality of first eccentric arc structures.

The arrangement improves the uniformity of the polarized light of the first polarization structure 31, and ensures that the light illuminance in the horizontal direction is consistent.

As shown in fig. 1 and 2, in the present embodiment, the third polarization structure 33 is a third eccentric arc structure.

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

Preferably, the first and second polarizing sections 331 and 332 each include a plurality of third off-centered arcs, and the third off-centered arcs of the first polarizing section 331 and the second polarizing section 332 are off-centered in opposite directions.

As shown in fig. 6, in the present embodiment, the first polarization structure 31 is an eccentric arc structure, the curvature radius of the eccentric arc structure is r, the height of the eccentric arc structure is h, the refractive index of the first polarization structure 31 is n, and the deflection angle of the first polarization structure 31 is α, where the curvature radius r, the height h, the refractive index n, and the deflection angle α satisfy the following relationship:

the range of the polarization angle required in the present embodiment is determined according to the actual product requirement, and generally, the polarization angle is small, α ≦ 20 °, and the curvature radius and height of the first polarization structure 31 are determined according to the above-mentioned deflection range of α.

In addition, the specific structures of the second polarizing structure 32 and the third polarizing structure 33 are set with reference to the arrangement manner of the first polarizing structure 31.

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

The total reflection lens is simple in structure, light rays passing through the total reflection lens are diffused in the horizontal direction and gathered in the vertical direction, the use requirements of the lamp can be met, and the cost is low.

Further, the luminaire further comprises: a first control switch capable of controlling the on/off and brightness of the first light emitting structure 11; a second control switch capable of controlling the on/off and brightness of the second light emitting structure 12; and a third control switch capable of controlling the switching and brightness of the middle light emitting structure 13.

Through the setting, the switches and the brightness of the first light-emitting structure 11, the second light-emitting structure 12 and the middle light-emitting structure 13 can be independently controlled, a user can adjust the light-emitting structure according to the needs of the user, the applicability is wide, and the user experience is high.

The technical scheme of the embodiment is realized by the following modes:

the light source of the lamp is divided into three sections: first light emitting structure, second light emitting structure and middle part light emitting structure, three-section light source arrange lens and the accurate accuse light of polarisation structure respectively, realize the key and the key illumination of musical instrument register for easy reference, specifically as follows:

for the first light emitting structure and the second light emitting structure for illuminating the key and the lens design corresponding to the first light emitting structure and the second light emitting structure:

the first light-emitting structure is arranged corresponding to the first lens, the first light-emitting surface of the first lens is provided with a first polarization structure, the second light-emitting structure is arranged corresponding to the second lens, and the second light-emitting surface of the second lens is provided with a second polarization structure, so that light rays emitted by the first light-emitting structure and the second light-emitting structure are respectively polarized outwards in the horizontal direction, the light rays cover the keys, the light rays are converged in the vertical direction, and the concentrated light rays illuminate the keys.

The design of the middle light-emitting structure for illuminating the music score and the lens corresponding to the middle light-emitting structure comprises the following steps:

the middle light-emitting structure deflects a certain angle towards the music score direction relative to the first light-emitting structure and the second light-emitting structure, so that light rays emitted by the middle light-emitting structure irradiate on the music score as much as possible, the irradiation brightness on the music score is ensured, and the phenomenon that the light rays emitted by the middle light-emitting structure irradiate on the key to influence the uniformity of pipelines on the key is avoided.

The middle light-emitting structure and the third lens are correspondingly arranged, a third polarization structure is arranged on a third light-emitting surface of the third lens and comprises a first polarization section and a second polarization section which are arranged at intervals, the polarization directions of the first polarization section and the second polarization section are opposite, light emitted by the middle light-emitting structure is close to and gathered together after passing through the first polarization section and the second polarization section, and the effect of converging light in the horizontal direction is achieved. Meanwhile, the third lens has a gathering effect on light rays in the vertical direction, so that the effect of illuminating the music score by concentrating the light rays is achieved.

Through the setting, because the polarization design has been done on the horizontal direction, with the light deflection of centre to the key edge, promote the illuminance at key edge, guaranteed the homogeneity of light on the key. And the light sources of the keys and the music score are separated, so that the illumination of the keys and the music score are nearly consistent, and the illumination of the keys and the music score is close to each other by adjusting the power of the keys and the power of the music score, so that the eye environment of a user is optimized.

Meanwhile, the technical scheme of the embodiment adopts the design of lens light collection and physical light interception to achieve the anti-dazzle purpose.

Therefore, the technical scheme of the utility model has the following advantages:

the illumination is proper, and comfortable anti-dazzle experience is provided;

the keys have higher illumination uniformity (the illumination ratio of the keys to the music score is within 3), and the reflection glare caused by over-brightness of the middle area of the keys is reduced;

the keys and the music score have almost the same illumination, and the eye fatigue caused by the vision switching is reduced.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

owing to set up first polarisation structure on first lens, second polarisation structure has been set up on the second lens, thereby make the light that first light emitting structure sent through first polarisation structure and towards the direction polarisation of keeping away from second light emitting structure of first light emitting structure, the light that second light emitting structure sent is through the direction polarisation of keeping away from first light emitting structure of second polarisation structure and towards second light emitting structure, and then realized the even distribution of the lamp light of lamps and lanterns on the horizontal direction, the rectangular shape of having realized the light is laid, the length and the homogeneity of laying of lamp light have been improved.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

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

Claims (10)

1. A light fixture, comprising:

a substrate;

the LED lamp comprises a light emitting part (10) arranged on the base body, wherein the light emitting part (10) comprises a first light emitting structure (11), a second light emitting structure (12) and a middle light emitting structure (13), and an included angle is formed between the light emitting direction of the middle light emitting structure (13) and the light emitting direction of the first light emitting structure (11) and/or the second light emitting structure (12).

2. The light fixture of claim 1, further comprising:

the first lens (20) comprises a first light incident surface (21) and a first light emitting surface (22), the first light emitting structure (11) is arranged corresponding to the first light incident surface (21), and a first polarization structure (31) is arranged on the first light emitting surface (22) so that light emitted by the first light emitting structure (11) passes through the first polarization structure (31) and is polarized towards the direction of the first light emitting structure (11) far away from the second light emitting structure (12);

second lens (40), go into plain noodles (41) and second play plain noodles (42) including the second, second light emitting structure (12) with second income plain noodles (41) correspond the setting, be equipped with second polarisation structure (32) on second play plain noodles (42), so that the light process that second light emitting structure (12) sent second polarisation structure (32) and orientation keeping away from of second light emitting structure (12) the direction polarisation of first light emitting structure (11).

3. The light fixture of claim 2, further comprising:

a third lens (50) including a third light incident surface (51) and a third light emitting surface (52), wherein the light emitting part (10) is located on one side of the third lens (50) close to the third light incident surface (51);

and the third light polarization structure (33) is arranged on the third light emitting surface (52), and light rays emitted by the middle light emitting structure (13) are polarized and gathered after passing through the third light polarization structure (33).

4. A luminaire as claimed in claim 3, characterized in that the third polarizing structure (33) comprises a first polarizing section (331) and a second polarizing section (332), the polarizing directions of the first polarizing section (331) and the second polarizing section (332) being opposite, the light emitted by the central light emitting structure (13) passing through the first polarizing section (331) and being polarized towards a direction close to the second polarizing section (332), and the light emitted by the central light emitting structure (13) passing through the second polarizing section (332) and being polarized towards a direction close to the first polarizing section (331).

5. A lamp as claimed in claim 1, characterized in that the angle between the light emitting direction of the central light emitting structure (13) and the vertical direction is α, wherein α is more than or equal to 5 ° and less than or equal to 25 °.

6. A luminaire as claimed in claim 2, characterized in that the first light deflecting structure (31) is a first eccentric arc structure or a first cylindrical structure and the second light deflecting structure (32) is a second eccentric arc structure or a second cylindrical structure.

7. A luminaire as claimed in claim 6, characterized in that the first light-deflecting structure (31) comprises a plurality of the first off-centered arc-shaped structures, or in that the first light-deflecting structure (31) comprises a plurality of the first cylindrical structures.

8. A luminaire as claimed in claim 2, characterized in that the first light deflecting structure (31) is an eccentric arc structure having a radius of curvature r, a height h, a refractive index n, and a deflection angle α, wherein the radius of curvature r, the height h, the refractive index n, and the deflection angle α satisfy the following relations:

9. a luminaire as claimed in claim 3, characterized in that the first lens (20) and/or the second lens (40) and/or the third lens (50) are total reflection lenses.

10. A light fixture as recited in claim 3, wherein said light fixture further comprises:

a first control switch capable of controlling the switching 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);

a third control switch capable of controlling the switching and/or brightness of the middle light-emitting structure (13).

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