Optical part, eave lamp and equipment

Abstract

The utility model provides an optical part, an eave lamp and equipment. The optical part comprises an optical main body; the optical main body comprises an optical cavity arranged on the optical main body; the arc-shaped light-emitting surface is arranged on the light-emitting side of the light cavity and is bent towards the direction of the light-emitting surface; the light inlet surface is arranged on the light inlet side of the light cavity; the arc-shaped light emitting surface is arranged on the light inlet surface, and the arc-shaped surface is arranged on the light inlet surface, and the arc-shaped light emitting surface is bent towards the direction where the light source is located, so that light rays which enter the optical main body from the arc-shaped surface and / or the light inlet surface around the arc-shaped surface are emitted from the arc-shaped light emitting surface and then are gathered towards an in-plane area of the arc-shaped light emitting surface. According to the embodiment of the invention, the divergence range of light is reduced, so that glare can be improved or avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of optical devices, and more particularly relates to an optical device, a roof lamp and equipment. BACKGROUND

[0002] A roof lamp is a lamp hung below the roof, usually used for outdoor lighting and decoration.

[0003] The optical device of the roof lamp on the market currently adopts a single convex lens scheme. Since the roof lamp module is installed on the top of the roof, the light is downwardly irradiated, less light energy is irradiated to the wall, and most of the light is concentrated on the upper part close to the roof wall, the illumination distribution is uneven, and the light energy utilization rate is low. Due to the symmetry of the light spot, the light on the outer side of the roof is all irradiated to the external space to form glare. CONTENT OF THE INVENTION

[0004] The present application aims to provide an optical device, a roof lamp and equipment to improve or avoid the generation of glare by reducing the divergence range of light.

[0005] In a first aspect, the present application provides an optical device, comprising an optical main body; the optical main body comprises:

[0006] a light cavity arranged in the optical main body;

[0007] an arc-shaped light-out surface arranged on the light-out side of the light cavity and curved towards the direction of the light-in surface;

[0008] a light-in surface arranged on the light-in side of the light cavity;

[0009] and an arc-shaped surface arranged on the light-in surface, the arc-shaped surface is curved away from the direction of the arc-shaped light-out surface so that the light rays entering the optical main body from the arc-shaped surface and / or the light-in surface around the arc-shaped surface are converged to the in-plane area of the arc-shaped light-out surface after being emitted from the arc-shaped light-out surface.

[0010] It can be understood that the in-plane area can refer to the upper area of the arc-shaped light-out surface; the light source can be arranged on the opening side of the light cavity, the light emitted by the light source enters the light cavity through the opening side, and enters the medium of the optical main body through the arc-shaped surface on the inner wall of the light cavity or the light-in surface around the arc-shaped surface. The light rays are refracted and reflected in the medium of the optical main body, the arc-shaped surface or the light-in surface around the arc-shaped surface can provide an interface for the light rays to be reflected in the medium until being emitted from the arc-shaped light-out surface. Since the arc-shaped surface is curved towards the direction of the light source, the arc-shaped light-out surface is curved towards the direction of the light source, so that the light rays are converged to the in-plane area of the arc-shaped light-out surface after being emitted from the arc-shaped light-out surface under the action of the arc-shaped surface and the arc-shaped light-out surface, thereby reducing the divergence range of the light rays and improving or avoiding the generation of glare.

[0011] Further, the arc-shaped light-out surface is a circular arc-shaped light-out surface; the circular arc-shaped light-out surface is curved towards the direction where the light source is located; the area of the circular arc-shaped light-out surface is smaller than the area of the light-out surface; the circular arc-shaped light-out surface has an annular surface outside; the outer periphery of the circular arc-shaped light-out surface is the inner periphery of the annular surface; after the light rays entering the optical main body from the arc-shaped surface and / or the annular surface, the light rays are emitted from the circular arc-shaped light-out surface and converge to the in-plane area of the arc-shaped light-out surface.

[0012] It can be understood that the circular arc-shaped light-out surface curved towards the direction where the light source is located can make the circular arc-shaped light-out surface protrude towards the light-out direction; the area of the circular arc-shaped light-out surface smaller than the area of the light-out surface can make the annular surface around the circular arc-shaped light-out surface; after the light rays enter the optical main body from the light-in surface, the light rays refract or reflect in the medium of the optical main body, and the annular surface can act as a reflecting surface for the light rays propagating in the medium, so that the light rays can be concentrated to the arc-shaped light-out surface after being reflected by the annular surface, thereby further reducing the divergence range of the light rays and improving or avoiding the generation of glare.

[0013] Further, the depth of the light cavity gradually increases from one side of the light cavity to the other side of the light cavity, and the one side of the light cavity is opposite to the other side of the light cavity.

[0014] It can be understood that the gradual increase of the depth of the light cavity can change the optical path difference of the light rays after the light rays enter the medium of the optical main body from the light-in surface of the light cavity, and the change of the optical path difference can cause the light emitted from the circular arc-shaped light-out surface to be enhanced or weakened, so that the light intensity can be adjusted by adjusting the optical path difference according to the actual needs.

[0015] Further, the arc-shaped light-out surface comprises a first arc-shaped surface and a second arc-shaped surface.

[0016] The height of the first arc-shaped surface gradually decreases from one side of the first arc-shaped surface to the other side of the first arc-shaped surface, and the one side of the first arc-shaped surface is opposite to the other side of the first arc-shaped surface.

[0017] The first arc-shaped surface is curved away from the direction where the light source is located; the second arc-shaped surface is curved towards the direction where the light source is located.

[0018] The other side of the first arc-shaped surface is connected to the second arc-shaped surface; the height of the second arc-shaped surface is greater than the height of the other side of the first arc-shaped surface.

[0019] The first arc-shaped surface connects the light-out side of the light cavity through a first arc-shaped side surface; the opposite sides of the second arc-shaped surface are connected to the light-out side of the light cavity through a second arc-shaped side surface.

[0020] It can be understood that the arc-shaped light emitting surface adopts the setting mode of the first arc-shaped surface and the second arc-shaped surface, which can collect most of the light in the area of the arc-shaped light emitting surface, thereby reducing the light loss and making the light emitted by the arc-shaped light emitting surface have a smaller divergence range and be more concentrated, thereby improving or avoiding the generation of glare.

[0021] Further, the first arc-shaped surface includes a first arc-shaped surface a and a first arc-shaped surface b; the second arc-shaped surface includes a second arc-shaped surface a and a second arc-shaped surface b.

[0022] The first arc-shaped side surface includes a first arc-shaped side surface a and a first arc-shaped side surface b, and the second arc-shaped side surface includes a second arc-shaped side surface a1, a second arc-shaped side surface a2, a second arc-shaped side surface b1, and a second arc-shaped side surface b2.

[0023] The second arc-shaped side surface a1 and the second arc-shaped side surface a2 are respectively arranged at opposite ends of the second arc-shaped surface a; the second arc-shaped side surface b1 and the second arc-shaped side surface b2 are respectively arranged at opposite ends of the second arc-shaped surface b.

[0024] The first arc-shaped surface a, the second arc-shaped surface a, the second arc-shaped surface b, and the first arc-shaped surface b are sequentially connected to form a first light emitting surface; the first arc-shaped side surface a, the second arc-shaped side surface a1, the second arc-shaped side surface b1, the first arc-shaped side surface b, the second arc-shaped side surface b2, and the second arc-shaped side surface a2 are sequentially connected to form a closed second light emitting surface; and the first light emitting surface and the second light emitting surface are connected to form the arc-shaped light emitting surface.

[0025] It can be understood that the above setting of the first arc-shaped surface and the second arc-shaped surface adopts the connection setting of each arc-shaped surface, so that the light incident from each angle into the optical main body medium can be emitted through each arc-shaped surface when emitted. Due to the collection effect of each arc-shaped surface on the light, the light emitted by the arc-shaped light emitting surface can have a smaller divergence range and be more concentrated, thereby avoiding the generation of glare.

[0026] Further, the optical cavity includes:

[0027] The first cavity is provided with an arc-shaped convex surface protruding towards the light source;

[0028] The two second cavities are respectively arranged at opposite sides of the first cavity;

[0029] The depth of the second cavity gradually decreases from one side of the second cavity to the other side of the second cavity;

[0030] The first arc-shaped surface is located at the light emitting side of the second cavity; and the second arc-shaped surface is located at the light emitting side of the first cavity.

[0031] It can be understood that the light cavity adopts the design of the first cavity and the second cavity, so that when the light is emitted from the light-emitting side of the first cavity, the light can be converged in the upper area of the second arc-shaped surface; when the light is emitted from the light-emitting side of the second cavity, the depth of the second cavity can gradually decrease from the outside to the inside of the light cavity, so that the light outside the optical main body can be converged to the arc-shaped light-emitting surface to the maximum, thereby reducing the divergence range of the light and improving or avoiding the generation of glare.

[0032] Further, the optical main body is further provided with a protective shell; the protective shell is integrally formed with the optical main body.

[0033] The protective shell and the optical main body are integrally formed, which is more convenient for production and use.

[0034] Further, the optical piece further comprises an annular connecting piece, the annular connecting piece is sleeved on the outer periphery of the optical main body, and / or the optical piece is integrally formed, and / or the material of the optical piece is polycarbonate or acrylic.

[0035] The use of polycarbonate or acrylic is more conducive to production and molding.

[0036] In a second aspect, the embodiments of the present application provide a roof lamp, which comprises the optical piece.

[0037] In a third aspect, the embodiments of the present application provide a device, which comprises the optical piece or the roof lamp.

[0038] The optical piece, the roof lamp and the device provided by the embodiments of the present application can make the light emitted from the arc-shaped light-emitting surface of the optical main body converge to the in-plane area of the arc-shaped light-emitting surface when the light is emitted from the arc-shaped surface and / or the light-emitting surface around the arc-shaped surface into the optical main body and from the arc-shaped light-emitting surface, thereby reducing the divergence range of the light and improving or avoiding the generation of glare. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0040] Figure 1 It is a schematic diagram of the lighting principle of the roof lamp in the related art.

[0041] Figure 2 It is a front view of the optical piece of one embodiment of the present application.

[0042] Figure 3 Left view of the optical piece of one embodiment of the present application.

[0043] Figure 4 Structure diagram of the optical piece of another embodiment of the present application. Figure 2 Structure diagram of the optical piece of another embodiment of the present application.

[0044] Figure 5 Structure diagram of the optical piece of another embodiment of the present application. Figure 2 Structure diagram of the optical piece of another embodiment of the present application.

[0045] Figure 6 Structure diagram of the optical piece of another embodiment of the present application.

[0046] Figure 7 Left view of the optical piece of another embodiment of the present application.

[0047] Figure 8 Structure diagram of the optical piece of another embodiment of the present application. Figure 7 Structure diagram of the optical piece of another embodiment of the present application.

[0048] Figure 9 Structure diagram of the optical piece of another embodiment of the present application.

[0049] Figure 10 Structure diagram of the eave lamp of one embodiment of the present application.

[0050] Figure 11 Structure diagram of the eave lamp of another embodiment of the present application.

[0051] Figure 12 Structure diagram of the eave lamp of another embodiment of the present application.

[0052] In the drawings:

[0053] 1 - first optical piece, 2 - second optical piece, 3 - annular connecting piece, 4 - first protective housing, 5 - first LED lamp, 6 - first sealing block, 7 - first cover plate, 8 - second protective housing, 9 - second LED lamp, 10 - second sealing block, 11 - second cover plate, 12 - third optical piece, 13 - third LED lamp, 14 - mounting shell, 15 - third sealing block, 16 - third cover plate, 101 - first optical main body, 102 - annular surface, 103 - light cavity connecting part, 104 - arc surface, 105 - arc light-out surface, 106 - first side, 107 - second side, 108 - light-in surface, 201 - light-out side, 202 - first arc side b, 203 - first arc side a, 204 - first arc surface a, 205 - long arc edge, 206 - second arc surface a, 207 - second arc surface b, 208 - first arc surface b, 209 - second arc side b1, 210 - second cavity a, 211 - second cavity b, 212 - first cavity, 213 - arc convex surface, 214 - second arc side a1. DETAILED DESCRIPTION

[0054] In order to make the technical problems to be solved, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0055] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0056] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0057] In addition, the terms "first", "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0058] Eave light is a kind of lamp hanging under the eaves, usually used for outdoor lighting and decoration.

[0059] The optical of eave light on the market at present all adopts single convex lens scheme, since the eave light module is all installed on the top of the eaves, the light irradiates downward, the light energy irradiated to the wall is less, and most of the light is concentrated in the upper part near the eaves wall, the illumination distribution is uneven, and the light energy utilization rate is low. Since the light spot is symmetrical, the light outside the eaves is all irradiated to the external space to form glare.

[0060] Specifically refer to Figure 1 As shown in the figure, the eave light 02 is installed on the eaves 01, the light of the eave light irradiates from top to bottom, the light on the left side of the eave light 02 hits on the wall 03 to illuminate the wall; the light on the right side of the eave light 02 is scattered in all directions without obstruction. When the human eye 04 sees the scattered light on the right side of the eave light 02, glare is generated in the human eye.

[0061] In view of this, the embodiment of the present application provides an optical piece, which reduces the divergence range of light to improve or avoid the generation of glare.

[0062] Refer to Figures 2-5 As shown in the figure, in one embodiment of the present application, the optical piece is a first optical piece, the first optical piece 1 comprises a first optical main body 101; the optical main body 101 comprises a light cavity, an arc-shaped light-out surface 105, a light-in surface 108 and an arc-shaped surface 104; the arc-shaped surface 104 is arranged on the light-in surface 108, and the light cavity is arranged on the optical main body; the arc-shaped light-out surface 105 is arranged on the light-out side of the light cavity and is curved towards the direction of the light-in surface; the light-in surface is arranged on the light-in side of the light cavity; the arc-shaped surface 104 is arranged on the light-in surface, and the arc-shaped surface is curved towards the direction away from the arc-shaped light-out surface so that the light rays entering the optical main body from the arc-shaped surface and / or the light-in surface around the arc-shaped surface are converged towards the in-plane region of the arc-shaped light-out surface after being emitted from the arc-shaped light-out surface.

[0063] It can be understood that the in-plane region can refer to the upper region of the arc-shaped light-out surface; the light source can be arranged on the opening side of the light cavity, and the light rays emitted by the light source enter the light cavity through the opening side and enter the medium of the optical main body through the arc-shaped surface on the inner wall of the light cavity or the light-in surface around the arc-shaped surface, the light rays are refracted and reflected in the medium of the optical main body, and the arc-shaped surface or the light-in surface around the arc-shaped surface can provide an interface for the light rays to be reflected in the medium until being emitted from the arc-shaped light-out surface.

[0064] Specifically, refer to Figure 2As shown, the light source can be arranged below the first optical element 1. The arc-shaped light exit surface 105 is curved towards the direction of the light entrance surface, and the arc-shaped surface is curved towards the direction away from the arc-shaped light exit surface. Alternatively, the arc-shaped light exit surface 105 is curved towards the direction of the light source, and the arc-shaped surface is curved towards the direction of the light source.

[0065] The light emitted by the light source enters the medium of the first optical element 1 through the arc-shaped surface 104, and is refracted and reflected in the medium, and finally exits through the arc-shaped light exit surface 105. Since the arc-shaped surface is curved towards the direction of the light source, and the arc-shaped light exit surface is curved towards the direction of the light source, under the action of the arc-shaped surface and the arc-shaped light exit surface, the light rays converge towards the in-plane region of the arc-shaped light exit surface after exiting from the arc-shaped light exit surface, thereby reducing the divergence range of the light rays and improving or avoiding the generation of glare.

[0066] Therefore, the optical element of the embodiment of the present application is configured by arranging the optical cavity, the arc-shaped light exit surface, the light entrance surface, and the arc-shaped surface on the optical main body. When the light rays enter the optical main body from the arc-shaped surface and / or the light entrance surface around the arc-shaped surface, and exit from the arc-shaped light exit surface, the light rays exiting from the arc-shaped light exit surface of the optical main body converge towards the in-plane region of the arc-shaped light exit surface, thereby reducing the divergence range of the light rays, and improving or avoiding the generation of glare.

[0067] In some embodiments, the arc-shaped light exit surface is a circular arc-shaped light exit surface 105, the circular arc-shaped light exit surface is curved towards the direction of the light source, the area of the circular arc-shaped light exit surface is smaller than the area of the light exit surface, the circular arc-shaped light exit surface has an annular surface 102 outside, the outer periphery of the circular arc-shaped light exit surface is the inner periphery of the annular surface, and the light rays entering the optical main body from the arc-shaped surface and / or the annular surface converge towards the in-plane region of the arc-shaped light exit surface 105 after exiting from the circular arc-shaped light exit surface.

[0068] Referring to Figure 2 As shown, the circular arc-shaped light exit surface 105 curved towards the direction of the light source can make the circular arc-shaped light exit surface protrude towards the light exit direction, and the area of the circular arc-shaped light exit surface can be smaller than the area of the light exit surface, so that the annular surface 102 can be generated around the circular arc-shaped light exit surface. When the light rays enter the optical main body from the light entrance surface, the light rays are refracted or reflected in the medium of the optical main body, and the annular surface can act as a reflection surface for the light rays propagating in the medium, so that the light rays can converge towards the arc-shaped light exit surface after being reflected by the annular surface, thereby further reducing the divergence range of the light rays and improving or avoiding the generation of glare.

[0069] Further, the depth of the optical cavity gradually increases from one side of the optical cavity to the other side of the optical cavity, and the one side of the optical cavity is opposite to the other side of the optical cavity.

[0070] It can be understood that the one side of the optical cavity and the other side of the optical cavity can be in a relative position relationship or an adjacent position relationship, and optionally, the one side of the optical cavity and the other side of the optical cavity are in a positive relative position. See Figure 5 As shown, the depth of the left side of the optical cavity, i.e., the first side 106, is greater than the depth of the right side of the optical cavity, i.e., the second side 107, and the depth of the optical cavity gradually increases from the left side of the optical cavity to the right side of the optical cavity. In this way, the light rays outside the first optical piece become softer, so that the first optical piece not only converges the light rays, but also further weakens the intensity of the light rays entering the eye from the outside of the first optical piece, thereby reducing the stimulation of the human eye, and further reducing the influence of glare on the human eye.

[0071] In order to facilitate connection, the outer periphery of the optical cavity has an annular optical cavity connecting portion 103.

[0072] See Figures 6-8 As shown, another embodiment of the present application provides a second optical piece 2, which is different from the first optical piece 1 in that the arc-shaped light-emitting surface of the second optical piece 2 has a plurality of arc-shaped surfaces, and the optical cavity of the second optical piece 2 has a plurality of cavities.

[0073] In order to enhance the converging effect of the arc-shaped light-emitting surface on the light rays, specifically, in some embodiments, the arc-shaped light-emitting surface includes a first arc-shaped surface and a second arc-shaped surface; the height of the first arc-shaped surface gradually decreases from one side of the first arc-shaped surface to the other side of the first arc-shaped surface, and the one side of the first arc-shaped surface is opposite to the other side of the first arc-shaped surface; the first arc-shaped surface is curved away from the direction of the light source; the second arc-shaped surface is curved toward the direction of the light source; the other side of the first arc-shaped surface is connected to the second arc-shaped surface; the height of the second arc-shaped surface is greater than the height of the other side of the first arc-shaped surface; the first arc-shaped surface is connected to the light-emitting side 201 of the optical cavity through a first arc-shaped side surface; and the opposite sides of the second arc-shaped surface are respectively connected to the light-emitting side 201 of the optical cavity through a second arc-shaped side surface.

[0074] Further, the first arc surface includes a first arc surface a 204 and a first arc surface b 208; the second arc surface includes a second arc surface a 206 and a second arc surface b 207; the first arc side surface includes a first arc side surface a 203 and a first arc side surface b 202, and the second arc side surface includes a second arc side surface a1 214, a second arc side surface a2 (not shown in the figure), a second arc side surface b1 209 and a second arc side surface b2 (not shown in the figure); the second arc side surface a1 214 and the second arc side surface a2 are respectively arranged at opposite ends of the second arc surface a 206; the second arc side surface b1 209 and the second arc side surface b2 are respectively arranged at opposite ends of the second arc surface b 207; the first arc surface a 204, the second arc surface a 206, the second arc surface b 207 and the first arc surface b 208 are sequentially connected to form a first light-out surface; the first arc side surface a 203, the second arc side surface a1 214, the second arc side surface b1 209, the first arc side surface b 202, the second arc side surface b2 and the second arc side surface a2 are sequentially connected to form a closed second light-out surface; and the first light-out surface and the second light-out surface are connected to form an arc light-out surface.

[0075] Referring to Figure 6 As shown in the figure, the left side of the first arc surface a 204 is higher than the right side of the first arc surface a 204; the right side of the first arc surface b 208 is higher than the left side of the first arc surface b 208; so that the first arc surface a 204 and the first arc surface b 208 are curved to the front side of the light-out side 201, i.e. curved to the direction away from the light source. The second arc surface a 206 and the second arc surface b 207 are both curved to the direction of the light source in the longitudinal direction; the long arc edge 205 of the second arc surface a 206 is connected with the right side of the first arc surface a 204; the right side of the first arc surface b 208 is connected with the long arc edge 205 of the left side of the second arc surface b 207, so as to form a first light-out surface; the periphery of the first light-out surface is connected with the light-out side 201 through a second light-out surface. The second light-out surface is sequentially connected by the upper end of the first arc side surface a 203, one second arc side surface a1 214, one second arc side surface b1 209 and the upper end of the first arc side surface b 202; the lower end of the first arc side surface a 203, another second arc side surface a1 214, another second arc side surface b1 209 and the lower end of the first arc side surface b 202 are sequentially connected, so as to form a closed and annular second light-out surface.

[0076] Specifically, in order to make full use of the first light exit surface and the second light exit surface to converge light and weaken light outside the optical body, in some embodiments, the light cavity comprises: a first cavity 212 and two second cavities; the first cavity is provided with an arc-shaped convex surface protruding towards the light source; the two second cavities are respectively arranged on opposite sides of the first cavity; the depth of the second cavity gradually decreases from one side of the second cavity to the other side of the second cavity; the first arc-shaped surface is located on the light exit side of the second cavity; and the second arc-shaped surface is located on the light exit side of the first cavity.

[0077] Referring to Figure 8 It is shown that the first cavity 212 is located between the two second cavities, and the upper wall surface of the first cavity is provided with an arc-shaped convex surface 213, and the protruding direction of the arc-shaped convex surface faces the side where the light source is located. The two second cavities also adopt the setting mode of adjusting the strength of light by adjusting the optical path difference, that is, the depth of the second cavity gradually decreases from one side of the second cavity to the other side of the second cavity; specifically, referring to Figure 8 It is shown that the second cavity comprises a second cavity a and a second cavity b; the second cavity a 210 is located on the left side of the first cavity; and the second cavity b 211 is located on the right side of the first cavity. The depth of the second cavity a gradually decreases from the left side of the second cavity a to the right side of the second cavity a; and the depth of the second cavity b gradually decreases from the left side of the second cavity b to the right side of the second cavity b. In this way, when light enters from the second cavity a or the second cavity b, the light has a tendency to converge towards the center of the arc-shaped light exit surface after being emitted from the corresponding light exit surface of the second cavity a 210 or the second cavity b 211, and the light becomes soft after being emitted from the corresponding light exit surface of the second cavity a 210 or the second cavity b 211.

[0078] Further, the first arc-shaped surface can be located on the light exit side of the second cavity, and the position of one side of the first arc-shaped surface corresponds to the position of one side of the second cavity; referring to Figure 8 It is shown that the first arc-shaped surface a 204 can be located on the upper side of the second cavity a 210; and the first arc-shaped surface b 208 can be located on the upper side of the second cavity b 211. The second arc-shaped surface can be located on the light exit side 201 of the first cavity 212, and the position of the arc-shaped convex surface corresponds to the position of the second arc-shaped surface; referring to Figure 8 It is shown that the second arc-shaped surface a 206 and the second arc-shaped surface b 207 can be located on the upper side of the arc-shaped convex surface 213.

[0079] When the light enters the second cavity a 210, the light is emitted from the first arc-shaped surface a 204 and the first arc-shaped side surface a 203; when the light enters the second cavity 211, the light is emitted from the first arc-shaped surface b 208 and the first arc-shaped side surface b 202; when the light enters the first cavity 212, the light is emitted from the second arc-shaped surface a, the second arc-shaped surface b, the second arc-shaped side surface a1 214, the second arc-shaped side surface a2 (not shown in the figure), the second arc-shaped side surface b1 209 and the second arc-shaped side surface b2 (not shown in the figure).

[0080] Through the above arrangement, the light in the first cavity, the second cavity a and the second cavity b can be respectively emitted from the arc-shaped surface and the arc-shaped side surface of the corresponding arc-shaped light-emitting surface in each cavity under the constraint of the first cavity, the second cavity a and the second cavity b, so as to achieve the convergence of the emitted light to the center of the optical body while avoiding the situation of local over-brightness or local over-darkness of the light caused by the interaction between the lights in each cavity. Therefore, the roof lamp made in the above manner can increase the energy irradiated to the wall surface, has high energy utilization rate, and can improve the wall surface illumination uniformity and reduce the glare outside the roof.

[0081] In still another embodiment of the present application, the optical piece is a third optical piece; the third optical piece is different from the first optical piece and the second optical piece in that:

[0082] Referring to Figure 9 As shown in the figure, the third optical piece further comprises a ring-shaped connecting piece 3 provided with a mounting hole for connection or installation; the ring-shaped connecting piece 3 is sleeved on the outer periphery of the optical body, the optical piece is integrally formed, and the material of the optical piece is polycarbonate or acrylic.

[0083] In some embodiments, the optical body of the third optical piece is further provided with a protective shell; optionally, the protective shell is integrally formed with the optical body.

[0084] In a second aspect, the embodiments of the present application provide a roof lamp comprising the foregoing optical piece.

[0085] Specifically, in one embodiment of the present application, referring to Figure 10 As shown in the figure, the roof lamp comprises a first protective shell 4, a first optical piece 1, a first LED lamp 5, a first sealing block 6 and a first cover plate 7. The first protective shell 4, the first optical piece 1, the first LED lamp 5, the first sealing block 6 and the first cover plate 7 are assembled to obtain the roof lamp.

[0086] Specifically, in another embodiment of the present application, referring to Figure 11As shown, the eave lamp comprises a second protective shell 8, a second optical piece 2, a second LED lamp 9, a second sealing block 10 and a second cover plate 11. The second protective shell 8, the second optical piece 2, the second LED lamp 9, the second sealing block 10 and the second cover plate 11 are assembled to obtain the eave lamp.

[0087] Specifically, in still another embodiment of the present application, referring to Figure 12 As shown, the eave lamp comprises a third optical piece 12, a third LED lamp 13, a mounting shell 14, a third sealing block 15 and a third cover plate 16. The third optical piece 12, the third LED lamp 13, the mounting shell 14, the third sealing block 15 and the third cover plate 16 are assembled to obtain the eave lamp.

[0088] The functions and effects of the technical features similar or related to the foregoing technical solutions in the technical solution are similar to those of the foregoing technical solutions. The inventive concept and beneficial effects of the technical solution are similar to those of the foregoing technical solutions, and thus are not described in detail.

[0089] In a third aspect, the embodiments of the present application provide a device comprising the foregoing optical piece or eave lamp.

[0090] The functions and effects of the technical features similar or related to the foregoing technical solutions in the technical solution are similar to those of the foregoing technical solutions. The inventive concept and beneficial effects of the technical solution are similar to those of the foregoing technical solutions, and thus are not described in detail.

[0091] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An optical article, characterized in that, The optical main body comprises: An optical cavity is arranged in the optical main body; An arc-shaped light-out surface is arranged on the light-out side of the optical cavity and is curved towards the direction of the light-in surface; A light-in surface is arranged on the light-in side of the optical cavity; An arc-shaped surface is arranged on the light-in surface, which is curved towards the direction away from the arc-shaped light-out surface so that the light rays entering the optical main body from the arc-shaped surface and / or the light-in surface around the arc-shaped surface converge towards the in-plane area of the arc-shaped light-out surface after being emitted from the arc-shaped light-out surface.

2. The optical article of claim 1, wherein, The arc-shaped light-out surface is a circular arc-shaped light-out surface; the area of the circular arc-shaped light-out surface is smaller than the area of the light-out surface; the circular arc-shaped light-out surface has an annular surface outside; the outer periphery of the circular arc-shaped light-out surface is the inner periphery of the annular surface; the light rays entering the optical main body from the arc-shaped surface and / or the annular surface converge towards the in-plane area of the arc-shaped light-out surface after being emitted from the circular arc-shaped light-out surface.

3. The optical article of claim 2, wherein, The depth of the optical cavity gradually increases from one side of the optical cavity to the other side of the optical cavity.

4. The optical article of claim 1, wherein, The arc-shaped light-out surface comprises a first arc-shaped surface and a second arc-shaped surface. The height of the first arc-shaped surface gradually decreases from one side of the first arc-shaped surface to the other side of the first arc-shaped surface. The first arc-shaped surface is curved towards the direction of the center of the second arc-shaped surface; the second arc-shaped surface is curved towards the direction of the light source. The other side of the first arc-shaped surface is connected with the second arc-shaped surface; the height of the second arc-shaped surface is greater than the height of the other side of the first arc-shaped surface. The first arc-shaped surface is connected with the light-out side of the optical cavity through a first arc-shaped side surface; the second arc-shaped surface is connected with the light-out side of the optical cavity through a second arc-shaped side surface.

5. The optical article of claim 4, wherein, The first arc-shaped surface comprises a first arc-shaped surface a and a first arc-shaped surface b; the second arc-shaped surface comprises a second arc-shaped surface a and a second arc-shaped surface b. The first arc-shaped side surface comprises a first arc-shaped side surface a and a first arc-shaped side surface b; the second arc-shaped side surface comprises a second arc-shaped side surface a1, a second arc-shaped side surface a2, a second arc-shaped side surface b1 and a second arc-shaped side surface b2. The second arc-shaped side surface a1 and the second arc-shaped side surface a2 are respectively arranged at opposite ends of the second arc-shaped surface a; the second arc-shaped side surface b1 and the second arc-shaped side surface b2 are respectively arranged at opposite ends of the second arc-shaped surface b. The first arc-shaped surface a, the second arc-shaped surface a, the second arc-shaped surface b and the first arc-shaped surface b are sequentially connected to form a first light-out surface; the first arc-shaped side surface a, the second arc-shaped side surface a1, the second arc-shaped side surface b1, the first arc-shaped side surface b, the second arc-shaped side surface b2 and the second arc-shaped side surface a2 are sequentially connected to form a closed second light-out surface; the first light-out surface and the second light-out surface are connected to form the arc-shaped light-out surface.

6. The optical article of claim 5, wherein, The optical cavity comprises: A first cavity is provided with an arc-shaped convex surface protruding towards the direction of the light source; Two second cavities are respectively arranged on opposite sides of the first cavity; The depth of the second cavity gradually decreases from one side of the second cavity to the other side of the second cavity. The first arc-shaped surface is located at the light emitting side of the second cavity, and the position of one side of the first arc-shaped surface corresponds to the position of one side of the second cavity; the second arc-shaped surface is located at the light emitting side of the first cavity, and the position of the arc-shaped convex surface corresponds to the position of the second arc-shaped surface.

7. The optical article of claim 6, wherein, The optical body is further provided with a protective shell which is integrally formed with the optical body.

8. The optical article according to any one of claims 1 to 7, wherein, The optical piece further comprises a ring-shaped connecting piece which is sleeved on the outer periphery of the optical body, and / or the optical piece is integrally formed, and / or the material of the optical piece is polycarbonate or acrylic.

9. A roof lantern, characterised in that, The optical piece of any one of claims 1-8.

10. An apparatus, comprising: The eave lamp of claim 9.

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