Lamp

Abstract

The lamp comprises a lamp body and a light source, the interior of the lamp body is hollow, a cavity is formed in the lamp body, the inner wall of the lamp body is provided with a light inlet face and a light outlet face which are used for transmitting light, the inner wall of the lamp body is further provided with a first light reflecting face used for reflecting light, and the light outlet face is located on one side of the light inlet face; the light source is arranged on the lamp body, and the light-out end of the light source is opposite to the light-in face. Wherein at least part of the first light reflecting surface inclines towards the light emitting surface, and light rays emitted by the light source enter the cavity through the light inlet surface and are emitted from the light emitting surface after being reflected by the first light reflecting surface. According to the LED lamp, after light enters the cavity from the light inlet face, part of parallel light is firstly projected to the inclined face and is reflected by the inclined face to the end, away from the light source, of the light outlet face, a dark area appearing at the end, away from the light source, of the light outlet face due to light attenuation is filled, and the light of the light outlet face of the lamp is dispersed more evenly; therefore, a more uniform light emitting effect is obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of photography and videography, and particularly relates to a lamp. Background Art

[0002] During photography and videography, since the inflatable photographic lamp emits light evenly and has a good soft light effect, it is particularly suitable for portrait photography, so it has always been popular among photographers.

[0003] Common inflatable photographic lamp fixtures include a lamp body and a light source connected to the lamp body. By setting the light-emitting end of the light source at the light-incident surface of the lamp body, the light emitted by the light source enters the lamp body through the light-incident surface and is emitted through the light-emitting surface provided on the peripheral wall of the lamp body.

[0004] However, since the distances from the light source in the axial direction of the lamp body are inconsistent, the light-emitting brightness at the end of the light-emitting surface far from the light source is lower than that at the end close to the light source, resulting in poor overall light-emitting uniformity. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the technical problem of poor light-emitting uniformity of the lamp fixture.

[0006] To solve the above technical problem, the utility model provides a lamp fixture, comprising:

[0007] A lamp body, which is hollow inside and provided with a cavity, and the inner wall of the lamp body is provided with a light-incident surface and a light-emitting surface for transmitting light, and the inner wall of the lamp body is further provided with a first reflecting surface for reflecting light, and the light-emitting surface is located on one side of the light-incident surface;

[0008] A light source, which is arranged on the lamp body, and the light-emitting end of the light source faces the light-incident surface;

[0009] Wherein, at least part of the first reflecting surface is inclined towards the light-emitting surface, and the light emitted by the light source enters the cavity through the light-incident surface and is emitted from the light-emitting surface after being reflected by the first reflecting surface.

[0010] In an exemplary embodiment of the present disclosure, the lamp body is a flexible member, the cavity can be inflated, and after inflation, it has a columnar structure, and the light-incident surface is arranged on the end wall of the lamp body;

[0011] The inner peripheral wall of the lamp body is provided with a light-transmitting area and a non-light-transmitting area, the light-transmitting area forms the light-emitting surface, and the non-light-transmitting area forms the first reflecting surface.

[0012] In an exemplary embodiment of the present disclosure, a second reflecting surface is provided on the end wall at the other end of the lamp body. The second reflecting surface is disposed opposite to the light incident surface. Part of the light entering the cavity is reflected by the first reflecting surface to the second reflecting surface, and is reflected from the second reflecting surface to the light emitting surface and emitted.

[0013] In an exemplary embodiment of the present disclosure, the portion of the first reflecting surface that is inclined toward the light emitting surface forms an inclined surface. The inclined surface is connected to the second reflecting surface, and the second reflecting surface is inclined toward the light emitting surface.

[0014] In an exemplary embodiment of the present disclosure, there is an arc transition between the inclined surface and the second reflecting surface.

[0015] In an exemplary embodiment of the present disclosure, the lamp further includes a polarizing member. The polarizing member is disposed between the light emitting end of the light source and the light incident surface. The light emitted by the light source is first subjected to polarization processing by the polarizing member, and then enters the cavity through the light incident surface. The light entering the cavity is reflected by the first reflecting surface and emitted from the light emitting surface; the polarizing member is used to make the light passing through it shoot toward the light incident surface in a set direction, and the set direction has an included angle with the normal direction of the light incident surface.

[0016] In an exemplary embodiment of the present disclosure, the polarizing member is a Fresnel lens. The Fresnel lens has a relative first light surface and a textured surface. The first light surface of the Fresnel lens is disposed opposite to the light emitting end of the light source, and the textured surface of the Fresnel lens is disposed opposite to the light incident surface. The focal center of the textured surface of the Fresnel lens is eccentrically arranged.

[0017] In an exemplary embodiment of the present disclosure, the focal center of the textured surface of the Fresnel lens is located on the side of the central axis of the lamp body away from the light emitting surface.

[0018] In an exemplary embodiment of the present disclosure, the polarizing member is a polarizing lens. The polarizing lens has a relative second light surface and a microstructure surface. The light surface of the polarizing lens is disposed opposite to the light emitting end of the light source, and the microstructure surface of the polarizing lens is disposed opposite to the light incident surface.

[0019] In an exemplary embodiment of the present disclosure, the microstructure surface includes a plurality of serrated units connected in sequence. The serrated unit includes a first plane perpendicular to the second light surface and a second plane inclined to the second light surface. One end of the second plane facing away from the second light surface is connected to one end of the first plane facing away from the second light surface. One end of the second plane far from the second light surface is closer to the light emitting surface than one end of the second plane close to the second light surface.

[0020] As can be seen from the above technical solution, the beneficial effects of the present utility model are as follows:

[0021] In this application, by making at least a part of the first reflecting surface inclined towards the light-emitting surface to form an inclined surface, the part of the inclined surface far from the light-incident surface is closer to the central axis of the lamp body. When light enters the cavity from the light-incident surface, some parallel light rays will first be projected onto the inclined surface and be reflected by the inclined surface towards one end of the light-emitting surface away from the light source, filling the dark area that appears at one end of the light-emitting surface away from the light source due to light attenuation, making the light on the light-emitting surface of the lamp more evenly distributed, thereby obtaining a more uniform light-emitting effect and improving the lighting effect of the lamp. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of the lamp in this embodiment.

[0023] Figure 2 It is an exploded view of the lamp in this embodiment Figure 1 .

[0024] Figure 3 It is a schematic internal structure diagram of the lamp in this embodiment Figure 1 .

[0025] Figure 4 It is a schematic structural diagram of the Fresnel lens in this embodiment Figure 1 .

[0026] Figure 5 It is a schematic structural diagram of the Fresnel lens in this embodiment Figure 2 .

[0027] Figure 6 It is an exploded view of the lamp in this embodiment Figure 2 .

[0028] Figure 7 It is a schematic internal structure diagram of the lamp in this embodiment Figure 2 .

[0029] Figure 8 It is a schematic structural diagram of the polarizing lens in this embodiment Figure 1 .

[0030] Figure 9 It is a schematic structural diagram of the polarizing lens in this embodiment Figure 2 .

[0031] The description of the reference numerals is as follows:

[0032] Lamp body 1, main body 11, mounting portion 12, first reflecting surface 13, inclined surface 131, second reflecting surface 14, light inlet surface 15, light outlet surface 16, inflation port 17, light source 2, lamp clamp 3, first ring portion 31, second ring portion 32, annular clamping groove 33, adapter ring 4, filter 5, locking piece 6, Fresnel lens 7, first optical surface 71, textured surface 72, focal center 73, concentric circle patterns 74, polarizing lens 8, second optical surface 81, microstructured surface 82, serrated unit 83, first plane 831, second plane 832, set direction S. DETAILED DESCRIPTION

[0033] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0034] In the description of the present application, it should be understood that in the embodiments shown in the drawings, the indications of directions or positional relationships (such as up, down, left, right, front and back, etc.) are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the indications of these directions also change accordingly.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] See also Figures 1 to 4 The present embodiment provides a lamp, which includes a lamp body 1, a light source 2 and a polarizer. The lamp body 1 is the main structure of the lamp, and the interior of the lamp body 1 is hollow and has a cavity. The lamp body is a flexible member, and the cavity can be inflated. An inflation port 17 connected to the cavity can be provided on the lamp body 1, and the cavity can be inflated through the inflation port 17 to expand the lamp body 1 into shape.

[0037] It is understandable that an inflation valve can be provided at the inflation port 17 to open and close the inflation port 17 through the inflation valve. When the lamp is not needed, the inflation port 17 can be opened through the inflation valve to discharge the gas in the cavity, so as to facilitate the folding and storage of the lamp.

[0038] In some embodiments, a light-emitting surface 16 for light transmission and a light-incident surface 15 are provided on the inner wall of the lamp body 1. The light-incident surface 15 is located on one side of the light-emitting surface 16. Light is received at the light-incident surface 15, enters the cavity through the light-incident surface 15, and then exits from the light-emitting surface 16, thereby achieving illumination.

[0039] In some embodiments, the lamp body 1 forms a columnar structure after being inflated, such that the lamp is an air column lamp. The light-incident surface 15 is provided on the end wall of the lamp body 1, and the light-emitting surface 16 is provided on the inner peripheral wall of the lamp body 1. In the axial direction of the lamp body, the light-emitting surface 16 is located on one side of the light-incident surface 15.

[0040] In some embodiments, a first light-reflecting surface 13 for reflecting light is further provided on the inner wall of the lamp body 1. After the light enters the cavity, it is reflected by the first light-reflecting surface 13 and exits from the light-emitting surface 16. By providing the first light-reflecting surface 13, the light entering the cavity can be reflected and gathered from different regions onto the light-emitting surface 16, enhancing the intensity of the light exiting from the light-emitting surface 16.

[0041] In some embodiments, the light source 2 is provided on the lamp body 1. The light-emitting end of the light source 2 faces the light-incident surface 15, and the light emitted by the light source 2 enters the cavity through the light-incident surface 15. It can be understood that the light source 2 and the lamp body 1 are detachably connected, so that when illumination is not required, the light source 2 can be separately removed, thereby facilitating the folding and storage of the lamp body 1.

[0042] In some embodiments, the lamp body 1 may include a main body portion 11. The main body portion 11 is the main structure of the lamp body 1. The interior of the main body portion 11 is hollow to form the above-mentioned cavity, and an inflation port 17 is provided on the main body portion 11. The main body portion 11 is a flexible member made of a flexible material and forms a columnar structure after being inflated, such as a square columnar structure, a triangular columnar structure, a circular columnar structure, etc. It can be understood that the main body portion 11 being a columnar structure means that its cavity is inflated to form a columnar structure. In this embodiment, the main body portion 11 is taken as an example of a cylindrical structure for illustration.

[0043] In some embodiments, one end face of the main body portion 11 constitutes the above-mentioned light-incident surface 15, and the light-emitting surface 16 can be provided on the circumferential side surface of the main body portion 11. In this way, the light-emitting area of the light-emitting surface 16 can be set larger, and the illumination range is larger. Among them, the first light-reflecting surface 13 is provided on the circumferential side surface of the main body portion 11.

[0044] In some embodiments, the lamp body 1 further includes a soft light cloth for softening light. The soft light cloth is provided on the light-emitting surface 16 to make the light exiting from the light-emitting surface 16 softer.

[0045] In some embodiments, a soft light cloth may not be provided on the light-emitting surface 16, and the light-emitting surface 16 may also be an ordinary light-transmitting surface. A light-concentrating material may be provided on the light-emitting surface 16, and it can be designed according to different needs.

[0046] In some embodiments, a second reflecting surface 14 is provided on the inner peripheral wall at the other end of the main body portion 11. The second reflecting surface 14 and the light-incident surface 15 are oppositely arranged. Part of the light entering the cavity is reflected by the first reflecting surface 13 to the second reflecting surface 14, and then reflected from the second reflecting surface 14 to the light-emitting surface 16 and emitted. Part of the light can also be directly reflected by the second reflecting surface 14 to the light-emitting surface 16. By providing the second reflecting surface 14 in cooperation with the first reflecting surface 13, the light can be reflected multiple times to the light-emitting surface 16 after entering the cavity, so as to increase the light intensity of the light-emitting surface 16.

[0047] In some embodiments, the second reflecting surface 14 is not light-transmitting to prevent light from directly passing through the second reflecting surface 14 after entering the cavity from the light-incident surface 15. The second reflecting surface 14 and the light-incident surface 15 may completely cover the end faces at both ends of the main body portion 11, or part of the end face of the main body portion 11 may form the second reflecting surface 14 and the light-incident surface 15. When the light-incident surface 15 and the second reflecting surface 14 respectively completely cover one end face of the main body portion 11, the light incident amount is more, the reflection effect of the second reflecting surface 14 is stronger, and the amount of light finally emitted from the light-emitting surface 16 is also more.

[0048] In some embodiments, a light-transmitting area and a non-light-transmitting area are provided on the inner peripheral wall of the lamp body, that is, on the inner peripheral wall of the main body portion 11. The light-transmitting area can allow light to pass through, so the light-transmitting area can form the above-mentioned light-emitting surface 16. The non-light-transmitting area cannot allow light to pass through, and the non-light-transmitting area can form the above-mentioned first reflecting surface 13. The light entering the cavity is reflected by the first reflecting surface 13 to the light-emitting surface 16. In cooperation with the reflection of the light by the second reflecting surface 14, the light entering the cavity can be reflected to the light-emitting surface 16 from various angles.

[0049] In some embodiments, a diffuse reflection member may be provided on the first reflecting surface 13 and the second reflecting surface 14 to reflect light. The diffuse reflection member may be an optical silver-plated matte particle, so that the first reflecting surface 13 and the second reflecting surface 14 have a high-efficiency reflection effect. In addition to providing optical silver-plated matte particles on the first reflecting surface 13 and the second reflecting surface 14, the first reflecting surface 13 and the second reflecting surface 14 may also be subjected to a matte treatment to have a high reflection or diffuse reflection effect.

[0050] In some embodiments, the lamp body 1 further includes a mounting portion 12. The mounting portion 12 is annular, and the mounting portion 12 is connected to the end peripheral edge of one end of the main body portion 11 that forms the light incident surface 15. When installing the light source 2, the light emitting end of the light source 2 is installed in the mounting portion 12. By locking the mounting portion 12, the light source 2 and the lamp body 1 can be fixedly connected as a whole. The mounting portion 12 plays a role in blocking the light emitting end of the light source 2, preventing the light emitted by the light source 2 from leaking before entering the cavity.

[0051] In some embodiments, the mounting portion 12 can be integrally formed with the main body portion 11, and the mounting portion 12 is formed by extending outward from the outer peripheral side of the main body portion 11 along the axial direction of the main body portion 11 towards the outside of the light incident surface 15. The mounting portion 12 can also be an independent component from the main body portion 11, and the mounting portion 12 is connected to the end of the main body portion 11 by means of clamping, screwing, or bonding.

[0052] In some embodiments, since the shapes and styles of the light sources 2 may be different, in order to be able to adapt to different light sources 2, the lamp further includes a lamp retaining ring 3 and an adapter ring 4. The lamp retaining ring 3 can be adaptively connected to the light source 2, the light emitting end of the light source 2 is clamped in the lamp retaining ring 3, the lamp retaining ring 3 is connected to the adapter ring 4, and the adapter ring 4 is connected to the mounting portion 12, so that different light sources 2 can be connected through their adapted lamp retaining rings 3 and adapter rings 4, and then connected to the lamp body 1.

[0053] It can be understood that different light sources 2 can be configured with corresponding lamp retaining rings 3. The lamp retaining ring 3 includes a first ring portion 31 for connecting to the adapter ring 4 and a second ring portion 32 for connecting to the light source 2. An annular slot 33 is provided on the outer peripheral wall of the first ring portion 31, and the first ring portion 31 is clamped in the adapter ring 4. The adapter ring 4 is provided with a buckle that can be engaged in the annular slot 33, so that the lamp retaining ring 3 can be connected to the adapter ring 4.

[0054] In this embodiment, the light emitting end of the light source 2 is provided with a protruding circumferential wall, and the second ring portion 32 of the lamp retaining ring 3 is clamped on the circumferential wall. The second ring portion 32 is provided with a plurality of block structures to be clamped with the block structures inside the circumferential wall.

[0055] In some embodiments, the outer diameter of the adapter ring 4 can be matched with the inner diameter of the mounting portion 12, and the two can be in interference fit to clamp the adapter ring 4 tightly. The two can also be in clearance fit to facilitate the insertion of the adapter ring 4 into the mounting portion 12 and be clamped tightly by other means.

[0056] In some embodiments, the lamp can further include a locking member 6. The locking member 6 can be a clamp, and the clamp is sleeved on the outer peripheral wall of the mounting portion 12 to tightly clamp the mounting portion 12, so that the adapter ring 4 and the mounting portion 12 are locked and fixed. The locking member 6 can also be a locking tie to tie the mounting portion 12 and the adapter portion tightly.

[0057] In some embodiments, a magnetic component is further provided on the end face of the lamp holder snap ring 3 away from the light source 2, and a magnetic accessory is adsorbed on the magnetic component. The magnetic accessory and the lamp holder snap ring 3 are coaxially arranged. The magnetic accessory can be a filter 5 to filter the light emitted from the light source 2 into the lamp body 1, so as to form light of different colors. Among them, the magnetic component can be a magnetic iron ring, which is arranged on the end face of the lamp holder snap ring 3 away from the light source 2, and the magnetic accessory is magnetically adsorbed on the magnetic iron ring. Multiple magnetic accessories can be provided, and the multiple magnetic accessories are sequentially arranged along the axis direction of the lamp holder snap ring 3.

[0058] In some embodiments, at least a part of the first reflecting surface 13 is inclined towards the light-emitting surface 16, and the inclined part forms an inclined surface 131, so that the distance from the end of the inclined surface 131 away from the light-incident surface 15 to the central axis of the lamp body 1 is greater than the distance from the end of the inclined surface 131 close to the light-incident surface 15 to the central axis of the lamp body 1. When the light enters the cavity from the light-incident surface 15, part of the light will first be projected onto the inclined surface 131 and be reflected by the inclined surface 131 towards the end of the light-emitting surface 16 away from the light source 2, filling the dark area that appears at the end of the light-emitting surface 16 away from the light source 2 due to light attenuation, making the light on the light-emitting surface 16 of the lamp body 1 more evenly dispersed, so as to obtain a more uniform light-emitting effect and improve the lighting effect of the lamp body 1 lamp.

[0059] In some embodiments, the inclined surface 131 is connected to the second reflecting surface 14, so that the inclined surface 131 extends to be connected to the second reflecting surface 14, and more light is reflected by the inclined surface 131 to the second reflecting surface 14 and then guided and reflected to the end of the light-emitting surface 16 away from the light-incident surface 15, so that more light is emitted towards the end of the light-emitting surface 16 away from the light-incident surface 15.

[0060] It can be understood that the part of the first reflecting surface 13 close to the light-incident surface 15 is parallel to the axis direction of the lamp body 1. Of course, the first reflecting surface 13 can also be entirely inclined towards the light-emitting surface 16 direction, and the first reflecting surface 13 can also be partially parallel to the axis direction of the lamp body 1 and partially inclined to form the inclined surface 131. In this embodiment, along the axis direction of the lamp body 1, the inclined surface 131 accounts for two-thirds of the length of the first reflecting surface 13, so that most of the first reflecting surface 13 is the inclined surface 131.

[0061] In some embodiments, the second reflecting surface 14 is inclined towards the light-emitting surface 16, so that when the light is reflected by the inclined surface 131 onto the second reflecting surface 14, multi-angle reflections are formed on the second reflecting surface 14, and more light is directly reflected by the second reflecting surface 14 onto the end of the light-emitting surface 16 away from the light-incident surface 15.

[0062] In some embodiments, there is an arc transition between the second reflecting surface 14 and the inclined surface 131. When light hits the connection between the second reflecting surface 14 and the inclined surface 131, it can be directly reflected towards one end of the light-emitting surface 16 away from the light-incident surface 15.

[0063] In some embodiments, the inclined surface 131 can be an inclined plane, or it can be a curved surface that is curved towards the light-emitting surface 16. The inclined surface 131 can also be a turning surface composed of multiple smaller planes, as long as the inclined surface 131 is generally inclined towards the light-emitting surface 16.

[0064] In some embodiments, the polarizing element is arranged between the light-emitting end of the light source 2 and the light-incident surface 15. The light emitted by the light source 2 is first subjected to polarization processing by the polarizing element, and then enters the cavity through the light-incident surface 15. The light entering the cavity is reflected by the first reflecting surface 13 and then emitted from the light-emitting surface 16. Among them, the polarizing element is used to make the light passing through it irradiate the light-incident surface 15 along the set direction S. The set direction S has an angle with the normal direction of the light-incident surface 15, so that the light passing through the polarizing element changes its original parallel light-emitting mode. Under the action of the polarizing element, the irradiation paths of some of the light rays are changed, and they can be projected onto the first reflecting surface 13 at a certain inclination angle. Then, in cooperation with the inclined surface formed in the first reflecting surface, more light rays are reflected to one end of the light-emitting surface 16 away from the light source, so that the light-emitting surface 16 obtains a more uniform light-emitting distribution, and further improves the light-emitting uniformity of the light-emitting surface of the lamp.

[0065] It can be understood that the set direction S has an angle with the normal direction of the light-incident surface 15, which means that the set direction S is not perpendicular to the plane where the light-incident surface 15 is located. After the light enters the cavity from the light-incident surface 15, the light has an angle with the axis direction of the lamp body 1, and the set direction S is not parallel to the axis direction of the lamp body 1. The set direction S can be offset towards the side away from the light-emitting surface 16 to guide more light to directly irradiate the first reflecting surface 13, and through the reflection of the first reflecting surface 13, more of it reaches one end of the light-emitting surface 16 away from the light-incident surface 15. The set direction S can also be inclined towards the light-emitting surface 16 to guide more light to directly irradiate one end of the light-emitting surface 16 away from the light-incident surface 15.

[0066] In some embodiments, the polarizing element can be connected to the light-emitting end of the light source 2 or to the lamp body 1. In this embodiment, the polarizing element is arranged in the mounting portion 12 and is located between the adapter ring 4 and the light-incident surface 15, so as to be able to cover all the light rays emitted from the adapter ring 4 and make all the light rays emitted from the light source 2 pass through the polarization processing of the polarizing element.

[0067] See Figures 3 to 5In some embodiments, the polarizer is a Fresnel lens 7. The Fresnel lens 7 is a thin sheet made of polyolefin material by injection molding, which can change the path of the light passing through. It can be understood that the Fresnel lens 7 has a first light surface 71 and a texture surface 72 relative to each other, and a plurality of concentric circular patterns 74 from small to large are engraved on the texture surface 72. During installation, the first light surface 71 of the Fresnel lens 7 is arranged opposite to the light emitting end of the light source 2, and the texture surface 72 of the Fresnel lens 7 is arranged opposite to the light input surface 15. When the light passes through the Fresnel lens 7, it enters from the first light surface 71 and then exits from the texture surface 72. The principle of the Fresnel lens 7 causing the light to deviate is not repeated here.

[0068] In this embodiment, the focal center 73 of the textured surface 72 of the Fresnel lens 7 is eccentrically arranged, so that when the light is emitted from the textured surface 72, the light path is offset to intersect with the axial direction of the lamp body 1. It can be understood that the focal center 73 of the textured surface 72 of the Fresnel lens 7 refers to the common center of the multiple concentric circular patterns 74 on the textured surface 72, and the eccentric arrangement thereof refers to the common center being offset relative to the physical center of the textured surface 72.

[0069] join Figure 3 In some embodiments, the focal center 73 of the textured surface 72 of the Fresnel lens 7 is located on the side of the central axis of the lamp body 1 away from the light emitting surface 16, so that after being emitted from the textured surface 72, the light is emitted obliquely along the set direction S in the direction away from the light emitting surface 16, so as to be emitted to the portion of the first reflecting surface 13 directly opposite to the light emitting surface 16, and then reflected by this portion of the first reflecting surface 13 to be emitted to the end of the light emitting surface 16 away from the light incident surface 15, guiding more light to the end of the light emitting surface 16 away from the light incident surface 15, so that the light emitting surface 16 obtains a more uniform light distribution.

[0070] It can be understood that when the Fresnel lens 7 is rotated, the direction of the light emitted from the textured surface 72 of the Fresnel lens 7 also changes accordingly. For example, when the focal center 73 of the textured surface 72 of the Fresnel lens 7 is located on the side of the central axis of the lamp body 1 close to the light emitting surface 16, the set direction S can be inclined toward the light emitting surface 16.

[0071] See also Figures 6 to 9 In some embodiments, the polarizer may also be a polarizing lens 8. The polarizing lens 8 is capable of changing the path of the light passing through it. The polarizing lens 8 has a second light surface 81 and a microstructure surface 82 that are opposite to each other. During installation, the second light surface 81 of the polarizing lens 8 is arranged opposite to the light emitting end of the light source 2, and the microstructure surface 82 of the polarizing lens 8 is arranged opposite to the light input surface 15. When the light passes through the polarizing lens 8, it enters from the second light surface 81 and then exits from the microstructure surface 82. The path of the light emission is changed by the microstructure surface 82 so that the light enters the cavity along the set direction S. The principle of the polarizing lens 8 to deflect the light is not repeated here.

[0072] In some embodiments, the microstructure surface 82 includes a plurality of serrated units 83 connected in sequence. The serrated unit 83 includes a first plane 831 perpendicular to the second light surface 81 and a second plane 832 inclined with respect to the second light surface 81. One end of the second plane 832 facing away from the second light surface 81 and one end of the first plane 831 facing away from the second light surface 81 are connected, and the connection part forms the tooth part of the serrated unit 83. By forming a plurality of serrated units 83, the light passing through the microstructure surface 82 undergoes a path offset and intersects with the axis direction of the lamp body 1.

[0073] See Figure 6 , in this embodiment, one end of the second plane 832 far from the second light surface 81 is closer to the light-emitting surface 16 than one end of the second plane 832 close to the second light surface 81, so that the light emitted from the second plane 832 is inclined and emitted in the set direction S away from the light-emitting surface 16, so as to guide more light to be projected onto a part of the first reflecting surface 13 facing the light-emitting surface 16, and then reflected by the first reflecting surface 13 to one end of the light-emitting surface 16 away from the light-incident surface 15, so that the light-emitting surface 16 obtains a more uniform light-emitting distribution.

[0074] In some embodiments, the microstructure surface 82 may further include a plurality of wedge-shaped or curved surface structures to achieve polarization processing.

[0075] In some embodiments, the lamp body 1 may also be of other shapes, such as an ellipsoid, a sphere or an umbrella-shaped lamp. The lamp body may also be made of a non-flexible material. The lamp body 1 is made of a hard material, and its cavity is non-inflatable and always maintains the same shape and cannot be folded. Among them, the light-transmitting area of the lamp body 1 can be made of materials such as acrylic, polyethylene or polyvinyl chloride to have light-transmitting properties.

[0076] In summary, in this embodiment, by providing a polarizing member between the light-emitting end of the light source 2 and the light-incident surface 15, the light passing through the light-incident surface 15 is offset, and the light can be projected onto the first reflecting surface 13 at a certain inclination angle. Some of the light projected onto the inclined surface 131 of the first reflecting surface 13 is reflected multiple times, so that more light is reflected to one end of the light-emitting surface 16 away from the light-incident surface 15, and finally the light is more evenly distributed on the light-emitting surface 16.

[0077] Although the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be broadly construed within the spirit and scope defined by the appended claims. Therefore, all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A lamp, characterized in that: include: A lamp body, wherein the interior of the lamp body is hollow and has a cavity therein, a light inlet surface and a light outlet surface for transmitting light are provided on the inner wall of the lamp body, a first light reflecting surface for reflecting light is also provided on the inner wall of the lamp body, and the light outlet surface is located on one side of the light inlet surface; A light source is arranged on the lamp body, wherein the light emitting end of the light source is opposite to the light incident surface; The first light reflecting surface is at least partially inclined toward the light emitting surface, and the light emitted by the light source enters the cavity through the light entering surface and is emitted from the light emitting surface after being reflected by the first light reflecting surface.

2. The lamp according to claim 1, characterized in that: The lamp body is a flexible member, the cavity can be inflated and has a columnar structure after being inflated, and the light-incoming surface is arranged on the end wall of the lamp body; A light-transmitting area and a light-impermeable area are provided on the inner peripheral wall of the lamp body. The light-transmitting area forms the light-emitting surface, and the light-impermeable area forms the first light-reflecting surface.

3. The lamp according to claim 2, characterized in that: A second reflecting surface is provided on the other end wall of the lamp body, and the second reflecting surface is arranged opposite to the light input surface. Part of the light entering the cavity is reflected by the first reflecting surface to the second reflecting surface, and then reflected from the second reflecting surface to the light output surface.

4. The lamp according to claim 3, characterized in that: The portion of the first light reflecting surface that is inclined toward the light emitting surface forms an inclined surface, the inclined surface is connected to the second light reflecting surface, and the second light reflecting surface is inclined toward the light emitting surface.

5. The lamp according to claim 4, characterized in that: There is an arc transition between the inclined surface and the second light reflecting surface.

6. The lamp according to claim 1, characterized in that: The lamp further comprises a polarizer, which is arranged between the light emitting end of the light source and the light inlet surface. The light emitted by the light source is first polarized by the polarizer and then enters the cavity through the light inlet surface. The light entering the cavity is reflected by the first light reflecting surface and then emitted from the light emitting surface. The polarizer is used to make the light passing through it be emitted toward the light incident surface along a set direction, and the set direction and the normal direction of the light incident surface form an angle.

7. The lamp according to claim 6, characterized in that: The polarizer is a Fresnel lens, which has a first light surface and a texture surface relative to each other. The first light surface of the Fresnel lens is arranged opposite to the light output end of the light source, the texture surface of the Fresnel lens is arranged opposite to the light input surface, and the focal center of the texture surface of the Fresnel lens is eccentrically arranged.

8. The lamp according to claim 7, characterized in that: The focal center of the Fresnel lens texture surface is located on a side of the central axis of the lamp body away from the light emitting surface.

9. The lamp according to claim 6, characterized in that: The polarizer is a polarizing lens having a second light surface and a microstructure surface opposite to each other. The light surface of the polarizing lens is arranged opposite to the light emitting end of the light source, and the microstructure surface of the polarizing lens is arranged opposite to the light input surface.

10. The lamp according to claim 9, characterized in that: The microstructure surface includes a plurality of sawtooth units connected in sequence, and the sawtooth unit includes a first plane perpendicular to the second light surface and a second plane inclined to the second light surface, an end of the second plane facing away from the second light surface is connected to an end of the first plane facing away from the second light surface, and an end of the second plane away from the second light surface is closer to the light emitting surface than an end of the second plane close to the second light surface.

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