Focusing LED ceiling lamp

Abstract

The utility model discloses a focus-adjustable LED ceiling lamp which comprises a light-emitting lampshade. An LED light source is arranged at the left end of the light-emitting lampshade, the input end of the LED light source is electrically connected to the output end of an external control switch, a first lens is arranged on the inner wall of the left side of the light-emitting lampshade and located on the right side of the LED light source, a focusing ring is slidably connected into the light-emitting lampshade, a conical ring is arranged on the left side face of the focusing ring, and a second lens is arranged in the middle of the conical ring. According to the focus-adjustable LED ceiling lamp, the distance between the two convex lenses is stably adjusted, the focal length of the LED ceiling lamp is changed, the downward light beam angle of the ceiling lamp is changed, the cost is saved, the LED ceiling lamp is more convenient to use, meanwhile, redundant light rays on the edge are reflected, and the focus-adjustable LED ceiling lamp has the advantages that the focus-adjustable LED ceiling lamp is more compact in structure, more attractive in appearance and more convenient to use. Therefore, the brightness of the lampshade is changed, the light is fully utilized, and the decoration artistry of the LED ceiling lamp is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ceiling lamps, in particular to a focus-adjustable LED ceiling lamp. Background Art

[0002] Ceiling lights are a type of lighting decoration lamp commonly used in modern times. Different from traditional ceiling lights combined with halogen light sources, ceiling lights that use LED as a light source have the advantages of low carbon and energy saving, and adapt to the trend of low-carbon life. They are an ideal choice for modern high-light homes and are very suitable for shopping malls, supermarkets, hotels, jewelry counters and high-end homes. LED ceiling lights can be installed in an embedded or adsorption-type manner to provide lighting by projecting light downward. LED ceiling light lenses have the advantages of high light transmittance and low light loss. In the prior art, ceiling lights that are widely used on the market currently need to be fixed in position with the ceiling, and their angles cannot be easily adjusted relative to the ceiling, resulting in a poor user experience. If there is a need for angle adjustment, lamps or lenses with different angles need to be replaced, and the production cost is greatly increased, which adds a burden to meet the demand. The use of LED ceiling lights is relatively inconvenient, and although the ceiling lights currently used maintain the overall unity of the unified architectural decoration, the artistic effect presented still needs to be improved. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a focus-adjustable LED ceiling lamp. By stably adjusting the distance between the two convex lenses, the angle of the downward beam of the ceiling lamp can be changed, which saves costs and makes the use of the LED ceiling lamp more convenient. The excess light at the edge is reflected to make the lampshade change light and dark, thereby increasing the artistic quality of the decoration, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned object, the present utility model provides the following technical solutions: a focus-adjustable LED ceiling lamp, comprising a light-emitting lampshade;

[0005] Luminous lampshade: An LED light source is provided at its left end, and the input end of the LED light source is electrically connected to the output end of the external control switch. A first lens is provided on the left inner wall of the luminous lampshade, and the first lens is located on the right side of the LED light source. The interior of the luminous lampshade is slidably connected with a focusing ring, and a conical ring is provided on the left side of the focusing ring, and a second lens is provided in the middle of the conical ring. The LED light source, the first lens and the second lens are arranged horizontally from left to right. By stably adjusting the distance between the two convex lenses, the focal length of the LED ceiling lamp is changed, and the change of the downward beam angle of the ceiling lamp is realized, which saves costs and makes the use of the LED ceiling lamp more convenient. At the same time, the excess light at the edge is reflected, so that the lampshade changes light and dark, making full use of the light and increasing the artistic quality of the LED ceiling lamp decoration.

[0006] Furthermore, a second light-transmitting prism is provided on the left end of the inner arc surface of the light-emitting lampshade, and a first light-transmitting prism is provided on the conical arc surface of the conical ring, so as to reflect the edge light and make full use of the light.

[0007] Furthermore, the first and second light-transmitting prisms are both distributed in a ring shape with the LED light source as the center, so as to more fully reflect the edge light.

[0008] Furthermore, the outer arc surface of the focusing ring is provided with an external thread ring, and the right end of the inner arc surface of the luminous lampshade is provided with an internal thread ring, and the internal thread ring is threadedly connected to the external thread ring, so that the relative movement of the focusing ring and the luminous lampshade is more stable.

[0009] Furthermore, the aperture size of the first lens is equal to the aperture size of the second lens, and different requirements can be met through different lens combinations.

[0010] Furthermore, the transverse length of the light-emitting lampshade is 0.5 times of its light aperture, and the transverse length of the focus ring is 0.35 times of its light output aperture, providing space for adjusting the lens spacing.

[0011] Furthermore, the first lens and the second lens are both convex lenses that focus light.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the focus-adjustable LED ceiling lamp has the following advantages:

[0013] 1. Install the entire device on the ceiling and start the LED light source through an external control switch. The light emitted by the LED light source enters the interior of the luminous lampshade through the first lens. The light at the edge is reflected and refracted by the transparent prism 1 and the transparent prism 2 in turn, so that the luminous lampshade is illuminated. By changing the material of the luminous lampshade, the appearance color of the LED ceiling lamp can be changed. The center light is emitted to the ground through the second lens. By setting a prism structure on the contact surface between the focusing device and the light, the excess light at the edge is reflected during the angle change, so that the light shade changes, making full use of the light and increasing the artistic quality of the LED ceiling lamp decoration.

[0014] 2. During use, the focusing ring is rotated and the focusing ring and the light-emitting lampshade are threadedly connected through the internal thread ring and the external thread ring, so that the focusing ring and the light-emitting lampshade slide relative to each other, driving the distance between the first lens and the second lens to change. When the distance between the first lens and the second lens increases, the synthetic focal length increases, and the beam angle formed by the central light emitted by the second lens becomes smaller. Similarly, when the distance between the first lens and the second lens decreases, the synthetic focal length decreases. By stably adjusting the distance between the two convex lenses, the focal length of the LED ceiling lamp is changed, and the change of the downward beam angle of the ceiling lamp is achieved, which saves costs and makes the use of the LED ceiling lamp more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the explosion of the overall device of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the front cross section of the overall device of the utility model.

[0018] In the figure: 1 light-emitting lampshade, 2 LED light source, 3 first lens, 4 focusing ring, 5 tapered ring, 6 second lens, 7 light-transmitting prism 1, 8 light-transmitting prism 2, 9 internal thread ring, 10 external thread ring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-3 ,This embodiment provides a technical solution: a focus-adjustable LED ceiling lamp, comprising a light-emitting lampshade 1;

[0021] Luminous lampshade 1: An LED light source 2 is provided at its left end to provide light for the operation of the LED ceiling lamp. The input end of the LED light source 2 is electrically connected to the output end of the external control switch. A first lens 3 is provided on the left inner wall of the luminous lampshade 1. The first lens 3 is located on the right side of the LED light source 2. A focus ring 4 is slidably connected to the inside of the luminous lampshade 1. A conical ring 5 is provided on the left side of the focus ring 4. A second lens 6 is provided in the middle of the conical ring 5. The LED light source 2, the first lens 3 and the second lens 6 are arranged horizontally from left to right. The light emitted by the LED light source 2 passes through the first lens 3. The first lens 3 enters the interior of the light-emitting lampshade 1 and finally shines down to the ground through the second lens 6. The relative sliding of the focus ring 4 and the light-emitting lampshade 1 drives the distance between the first lens 3 and the second lens 6 to change. When the distance between the first lens 3 and the second lens 6 increases, the synthetic focal length increases, and the beam angle formed by the central light emitted by the second lens 6 becomes smaller. At the same time, the edge light increases, so that the light exposed to the light-emitting lampshade 1 increases, and the light-emitting lampshade 1 becomes brighter. Similarly, when the distance between the first lens 3 and the second lens 6 decreases, the synthetic focal length decreases, and the light-emitting lampshade 1 becomes brighter. The cover 1 is relatively dark. The left end of the inner arc surface of the luminous lampshade 1 is provided with a light-transmitting prism 2 8, and the conical arc surface of the conical ring 5 is provided with a light-transmitting prism 1 7, which reflects and refracts the edge light after passing through the first lens 3, so that the luminous lampshade 1 is illuminated. The light-transmitting prism 1 7 and the light-transmitting prism 2 8 are distributed in a ring shape with the LED light source 2 as the center, reflecting and refracting the light more comprehensively. The outer arc surface of the focusing ring 4 is provided with an external threaded ring 10, and the right end of the inner arc surface of the luminous lampshade 1 is provided with an internal threaded ring 9, which is threadedly connected to the external threaded ring 10. The internally threaded ring 9 and the externally threaded ring 10 are threadedly connected to each other, making the relative sliding of the focusing ring 4 and the light-emitting lampshade 1 more accurate. The aperture size of the first lens 3 is equal to the aperture size of the second lens 6, ensuring the normal propagation of light. The lateral length of the light-emitting lampshade 1 is 0.5 times its light aperture, and the lateral length of the focusing ring 4 is 0.35 times its light output aperture, providing space for the relative sliding of the focusing ring 4 and the light-emitting lampshade 1, so that the ratio of the change in light angle to the change in lens spacing is 2:1. The first lens 3 and the second lens 6 are both convex lenses, which focus the light.

[0022] The working principle of the adjustable focus LED ceiling lamp provided by the present invention is as follows: the entire device is installed on the ceiling, and the LED light source 2 is activated by an external control switch. The light emitted by the LED light source 2 enters the interior of the light-emitting lampshade 1 through the first lens 3. The light at the edge is reflected and refracted by the transparent prism 1 7 and the transparent prism 2 8 in sequence, so that the light-emitting lampshade 1 is illuminated. By changing the material of the light-emitting lampshade 1, the appearance color of the LED ceiling lamp can be changed. The center light is emitted to the ground through the second lens 6, and together with the light refracted by the transparent prism 1 7, it presents beautiful lighting. Decorative effect: During use, the focus ring 4 is rotated and threadedly connected to the external thread ring 10 through the internal thread ring 9, so that the focus ring 4 and the luminous lampshade 1 slide relative to each other, driving the distance between the first lens 3 and the second lens 6 to change. When the distance between the first lens 3 and the second lens 6 increases, the synthetic focal length increases, and the beam angle formed by the central light emitted by the second lens 6 becomes smaller. At the same time, the edge light increases, so that the luminous lampshade 1 is exposed to more light, and the luminous lampshade 1 is therefore brighter. Similarly, when the distance between the first lens 3 and the second lens 6 decreases, the synthetic focal length decreases, and the luminous lampshade 1 is relatively dark.

[0023] It is worth noting that the LED light source 2 disclosed in the above embodiment can be freely configured according to the actual application scenario. It is recommended to use the 3528 model LED lamp bead, and the external control switch is provided with a switch button corresponding to the LED light source 2 for controlling its switching operation.

[0024] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A focus-adjustable LED ceiling lamp, characterized in that: The invention comprises a light-emitting lampshade (1); The light-emitting lampshade (1) has an LED light source (2) at its left end, the input end of the LED light source (2) is electrically connected to the output end of an external control switch, a first lens (3) is provided on the left inner wall of the light-emitting lampshade (1), the first lens (3) is located on the right side of the LED light source (2), a focus ring (4) is slidably connected inside the light-emitting lampshade (1), a conical ring (5) is provided on the left side of the focus ring (4), a second lens (6) is provided in the middle of the conical ring (5), and the LED light source (2), the first lens (3) and the second lens (6) are arranged in sequence from left to right in a horizontal direction.

2. The focus-adjustable LED ceiling lamp according to claim 1, characterized in that: The left end of the inner arc surface of the light-emitting lampshade (1) is respectively provided with a second light-transmitting prism (8), and the conical arc surface of the conical ring (5) is respectively provided with a first light-transmitting prism (7).

3. The focus-adjustable LED ceiling lamp according to claim 2, characterized in that: The light-transmitting prism 1 (7) and the light-transmitting prism 2 (8) are both distributed in a ring shape with the LED light source (2) as the center.

4. The focus-adjustable LED ceiling lamp according to claim 1, characterized in that: The outer arc surface of the focus ring (4) is provided with an external thread ring (10), and the right end of the inner arc surface of the light-emitting lampshade (1) is provided with an internal thread ring (9), and the internal thread ring (9) is threadedly connected to the external thread ring (10).

5. The focus-adjustable LED ceiling lamp according to claim 1, characterized in that: The aperture size of the first lens (3) is equal to the aperture size of the second lens (6).

6. The focus-adjustable LED ceiling lamp according to claim 1, characterized in that: The transverse length of the light-emitting lampshade (1) is 0.5 times the diameter of its light aperture, and the transverse length of the focus ring (4) is 0.35 times the diameter of its light output aperture.

7. The focus-adjustable LED ceiling lamp according to claim 1, characterized in that: The first lens (3) and the second lens (6) are both convex lenses.

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