A lighting device and a luminaire

Abstract

The utility model discloses a kind of lighting device and lamps and lanterns.The lighting device includes: at least two light sources and the lens corresponding to the light source one by one;Wherein, the lens is used to receive the emergent light of corresponding light source and carry out spotlight, the outer periphery of lens is circular arc, multiple lens is symmetrically arranged, the emergent light of each lens forms a partition spot, and all the partition spot forms an integrated fan-shaped spot.The technical scheme provided by the utility model realizes the spot effect of multiple independent partitions by multiple light sources and lenses, improves the adjustable degree of spot, and at the same time, all partition spots form an integrated fan-shaped spot, so that the overall lighting effect is not affected, and the circular arc outer periphery can weaken the overlap of light, so that the light emission is more uniform.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a lighting device and a lamp. Background Technology

[0002] Most existing lighting fixtures produce a single light spot effect with a single lamp. Intelligent dimming can only adjust a single color or brightness, but the light spot effect remains fixed. Meanwhile, existing multi-source lighting fixtures usually have poor light output and cannot meet the needs of many scenarios. Utility Model Content

[0003] This utility model provides a lighting device and lamp to improve the adjustability of the light spot without affecting the overall lighting effect.

[0004] In a first aspect, embodiments of the present invention provide a lighting device comprising: at least two light sources and lenses corresponding to each of the light sources; wherein...

[0005] The lens is used to receive and focus the emitted light from the corresponding light source. The outer periphery of the lens is arc-shaped. Multiple lenses are symmetrically arranged. The emitted light from each lens forms a zoned light spot. All the zoned light spots form an integrated fan-shaped light spot.

[0006] Optionally, each of the light sources has the same emission angle.

[0007] Optionally, the number of lenses is odd, and each lens includes a central lens whose optical axis coincides with the optical axis of the fan-shaped light spot. Other lenses besides the central lens are symmetrically arranged on both sides of the central lens.

[0008] Optionally, the angle between the optical axis of the i-th other lens on each side of the central lens and the optical axis of the fan-shaped light spot is iN / M, where N represents the size of the central angle of the fan-shaped light spot and M represents the number of lenses.

[0009] Optionally, the number of lenses is even, and all the lenses are symmetrically arranged on both sides of the optical axis of the fan-shaped light spot.

[0010] Optionally, the angle between the optical axis of the i-th lens on each side of the optical axis of the fan-shaped light spot and the optical axis of the fan-shaped light spot is (2i-1)N / 2M, where N represents the size of the central angle of the fan-shaped light spot and M represents the number of lenses.

[0011] Optionally, a light mixing cover is provided in the emission direction of each of the light sources.

[0012] Optionally, each of the lenses is surrounded by a light-shielding element, and a light-shielding element is sandwiched between two adjacent lenses.

[0013] Optionally, the lens is a double freeform surface lens.

[0014] Secondly, this utility model embodiment also provides a lamp, including a control box and a lighting device provided in any embodiment of this utility model that is electrically connected to the control box.

[0015] This invention provides a lighting device comprising at least two light sources and lenses corresponding to each light source. The lenses receive and focus the emitted light from the corresponding light source. Each lens has an arc-shaped outer perimeter, and multiple lenses are symmetrically arranged. The emitted light from each lens forms a segmented light spot, and these segmented light spots together form a unified fan-shaped light spot. This lighting device achieves multiple independent light spot effects through multiple light sources and lenses, improving the adjustability of the light spot. Simultaneously, all segmented light spots form a unified fan-shaped light spot, thus not affecting the overall lighting effect. Furthermore, the arc-shaped outer perimeter reduces light overlap, resulting in more uniform light emission. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of the lighting device provided in the embodiment of this utility model;

[0017] Figure 2 A top view of the lighting device provided in an embodiment of this utility model;

[0018] Figure 3 Different colored hill-shaped light spot effect diagrams provided for embodiments of this utility model;

[0019] Figure 4 This is an example of a hill-shaped light spot effect of the same color provided in an embodiment of the present invention;

[0020] Figure 5 A schematic diagram of odd-numbered lens spot partitioning provided for an embodiment of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the two-lens illumination device provided in an embodiment of the present invention;

[0022] Figure 7 Different colored hill-shaped light spot effect diagrams of the two-lens illumination device provided in this embodiment of the utility model;

[0023] Figure 8 A schematic diagram of even-numbered lens spot partitioning provided for an embodiment of this utility model;

[0024] Figure 9The diagram shows the optical path effect of the light-shielding component provided in the embodiment of this utility model.

[0025] In the diagram: 100, light source; 200, lens; 300, light mixing mask; 400, light shield. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0027] Figure 1 This is a schematic diagram of the structure of a lighting device provided in an embodiment of the present invention. This embodiment can be applied to lighting fixtures such as wall washer lights. Figure 1 As shown, the lighting device includes at least two light sources 100 and lenses 200 corresponding to each light source; wherein, the lens 200 is used to receive the emitted light from the corresponding light source 100 and focus the light, the outer periphery of the lens is arc-shaped, the plurality of lenses 200 are symmetrically arranged, the emitted light from each lens 200 forms a partitioned light spot, and all the partitioned light spots form an integrated fan-shaped light spot.

[0028] Specifically, the light source 100 can be any number of at least two, and correspondingly includes the same number of lenses 200. Figure 1 The example shown includes three sets of light sources 100 and lenses 200. Lenses 200 receive the emitted light from the corresponding light source 100, focus it, and then emit it from the light-emitting surface. The lenses 200 are symmetrically arranged, and the emitted light from each lens 200 can form a zoned light spot. Simultaneously, the zoned light spots formed by all lenses 200 can collectively form a unified fan-shaped light spot. That is, while generating multiple zoned light spots, there is not much overlap between the zoned light spots, and they are arranged closely together. Optionally, the light source 100 includes at least one of white LED, RGB LED, and RGBWW five-color LED, and each light source 100 is independently controlled. This allows each light source 100 to emit light of the same or slightly different colors and brightness. When the color and brightness are the same, the overall effect is a fan-shaped light spot; when the colors and brightness are not exactly the same, different light spot effects can be achieved for independently zoned areas. The light sources 100 can be arranged sequentially at intervals along a straight line or an arc. Optionally, the lens 200 is a double freeform surface lens, meaning that the incident surface and the exit surface of the lens 200 are both freeform surfaces, thereby achieving adjustment of the zoned light spot. Meanwhile, as... Figure 2As shown, the shape of the receiving surface of each lens 200 facing the corresponding zone of light spot can be arc-shaped, thus allowing the light spots of each zone to be stitched together to form a fan-shaped light spot resembling a hill. This reduces light overlap and makes the light output more uniform. The effect of different colored light spots is as follows: Figure 3 As shown, the effect of the same color light spot is as follows: Figure 4 As shown.

[0029] In an optional implementation, each of the light sources has the same exit angle. This means the central angle of the final integrated fan-shaped light spot can be evenly divided according to the number of lenses 200. By designing the curvature of the incident and exit surfaces of each lens 200, the exit angle of the partitioned light spots formed by each lens 200 is the average value obtained after equal division. Furthermore, the optical axis of each lens 200 is positioned at the center of each divided region, resulting in a more uniform fan-shaped light spot. The central angle of the entire fan-shaped light spot can be between 80 and 120 degrees. Taking a fan-shaped light spot consisting of three light sources 100 and lenses 200 as an example, assuming the central angle of the fan-shaped light spot composed of the three partitioned light spots is 100 degrees, then the exit angle of each partitioned light spot is 100 / 3 degrees, approximately 33 degrees.

[0030] In an optional embodiment, the number of lenses 200 is odd. Each lens 200 includes a central lens whose optical axis coincides with the optical axis of the fan-shaped light spot. Other lenses besides the central lens are symmetrically arranged on both sides of the central lens. Specifically, the central lens can be symmetrically arranged in both the arrangement direction and the vertical direction of each lens 200 on a plane facing the receiving surface of the corresponding zoned light spot. Since the other lenses are symmetrically arranged on both sides of the central lens, the shapes of the two other lenses at symmetrical positions can be identical.

[0031] Optionally, the angle between the optical axis of the i-th lens on each side of the central lens and the optical axis of the fan-shaped light spot is iN / M, where N represents the central angle of the fan-shaped light spot and M represents the number of lenses 200. Specifically, the swing angle of the central lens can be 0 degrees, and the swing angles of the other lenses in different sections on the same side of the central lens are different, varying with the required optical axis deflection. There can be a total of (M+1) / 2 types of lenses, with the exit angle of the light spot formed by each lens being evenly distributed as N / M. Correspondingly, the swing angle of each lens can be 0, N / M, 2N / M, 3N / M, etc., sequentially relative to the optical axis direction of the fan-shaped light spot. For example, taking a system comprising five light sources 100 and lenses 200, assuming the central angle of the fan-shaped light spot composed of five light spots is 100 degrees, and there are three types of lenses, where the central lens has a swing angle of 0 degrees, the first other lens on each side has a swing angle of 20 degrees, and the second other lens on each side has a swing angle of 40 degrees, the light spot partitioning is illustrated as follows. Figure 5 As shown.

[0032] In an optional embodiment, the number of lenses 200 is even, and all lenses 200 are symmetrically arranged on both sides of the optical axis of the fan-shaped light spot. Specifically, as shown... Figure 6 As shown, taking an example including two sets of light sources 100 and lenses 200, each lens 200 is symmetrically arranged on both sides of the optical axis of the fan-shaped light spot. The shapes of the two lenses at symmetrical positions can be the same, and different colored light spots can produce effects such as... Figure 7 As shown.

[0033] Optionally, the angle between the optical axis of the i-th lens on each side of the optical axis of the fan-shaped light spot and the optical axis of the fan-shaped light spot is (2i-1)N / 2M, where N represents the central angle of the fan-shaped light spot and M represents the number of lenses. Specifically, the lens angles of different sections on the same side of the optical axis of the fan-shaped light spot are different, varying with the required optical axis deflection. There can be a total of M / 2 types of lenses, with the average emission angle of the section light spot formed by each lens being N / M. Correspondingly, the angle of each lens can be N / 2M, 3N / 2M, 5N / 2M, etc., sequentially relative to the optical axis direction of the fan-shaped light spot. For example, taking a fan-shaped light spot composed of four light sources 100 and lenses 200, assuming the central angle of the fan-shaped light spot formed by the four sections is 100 degrees, and there are two types of lenses, the angle of the first lens on each side of the optical axis of the fan-shaped light spot is 12.5 degrees, and the angle of the second lens on each side is 37.5 degrees. The light spot sectioning is illustrated as follows. Figure 8 As shown.

[0034] In an alternative implementation, such as Figure 1 As shown, a light mixing cover 300 is provided in the emission direction of each of the light sources 100, thereby improving the uniformity of light mixing. Specifically, the light mixing cover 300 can be arranged around the corresponding light source 100, and the emitted light from the light source 100 passes through the corresponding light mixing cover 300 and then enters the corresponding lens 200.

[0035] In an alternative implementation, such as Figure 1 As shown, each lens 200 is surrounded by a light-shielding member 400, and a light-shielding member 400 is sandwiched between two adjacent lenses 200, thereby separating the lenses 200 to prevent mutual light interference. This also allows for a closer arrangement, resulting in more uniform light output. Furthermore, the light-shielding members 400 around the outer lenses can block some stray light, thus making the overall fan-shaped light spot clearer, achieving the desired effect. Figure 9 As shown.

[0036] The lighting device provided in this embodiment includes at least two light sources and lenses corresponding to each light source. The lenses receive and focus the emitted light from the corresponding light source. Each lens has an arc-shaped outer periphery, and multiple lenses are symmetrically arranged. The emitted light from each lens forms a segmented light spot, and these segmented light spots form a unified fan-shaped light spot. By using multiple light sources and lenses, multiple independent segmented light spot effects are achieved, improving the adjustability of the light spot. Simultaneously, all segmented light spots form a unified fan-shaped light spot, thus not affecting the overall lighting effect. Furthermore, the arc-shaped outer periphery reduces light overlap, resulting in more uniform light emission.

[0037] This utility model embodiment also provides a lamp, which includes a control box and a lighting device provided in any embodiment of this utility model that is electrically connected to the control box, and has the beneficial effects of the corresponding structure. Specifically, the lamp can be a wall washer light, a fence light, an eaves light, etc.

[0038] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A lighting device, characterized in that, include: At least two light sources and lenses corresponding one-to-one with each of the light sources; wherein, The lens is used to receive and focus the emitted light from the corresponding light source. The outer periphery of the lens is arc-shaped. Multiple lenses are symmetrically arranged. The emitted light from each lens forms a zoned light spot. All the zoned light spots form an integrated fan-shaped light spot.

2. The lighting device according to claim 1, characterized in that, Each of the light sources has the same emission angle.

3. The lighting device according to claim 1, characterized in that, The number of lenses is odd, and each lens includes a central lens whose optical axis coincides with the optical axis of the fan-shaped light spot. Other lenses besides the central lens are symmetrically arranged on both sides of the central lens.

4. The lighting device according to claim 3, characterized in that, The angle between the optical axis of the i-th other lens on each side of the central lens and the optical axis of the fan-shaped light spot is iN / M, where N represents the size of the central angle of the fan-shaped light spot and M represents the number of lenses.

5. The lighting device according to claim 1, characterized in that, The number of lenses is even, and all the lenses are symmetrically arranged on both sides of the optical axis of the fan-shaped light spot.

6. The lighting device according to claim 5, characterized in that, The angle between the optical axis of the i-th lens on each side of the optical axis of the fan-shaped light spot and the optical axis of the fan-shaped light spot is (2i-1)N / 2M, where N represents the size of the central angle of the fan-shaped light spot and M represents the number of lenses.

7. The lighting device according to claim 1, characterized in that, A light mixing cover is provided in the emission direction of each of the light sources.

8. The lighting device according to claim 1, characterized in that, Each of the lenses is surrounded by a light-shielding element, and a light-shielding element is sandwiched between two adjacent lenses.

9. The lighting device according to claim 1, characterized in that, The lens is a double freeform surface lens.

10. A lamp, characterized in that, It includes a control box and a lighting device as described in any one of claims 1-9, which is electrically connected to the control box.

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