A light reflecting cup and a lighting device

Abstract

The utility model discloses a kind of reflector cup and lighting equipment, it is related to lighting equipment technical field.Reflector cup, including cup body, lighting plate;Cup body is close to the inner side wall on cup body bottom and is surrounded with mixed light area, the inner side wall of cup body far from cup body bottom is light-collecting area;Lighting plate is installed in cup body bottom, and lighting plate is equipped with light-collecting chip, floodlight chip, light-collecting chip is located in the central position of cup body bottom, and floodlight chip is surrounded and is arranged in the circumferential side of light-collecting chip;The reflector cup provided by the utility model is by respectively setting mixed light area, light-collecting area on the inner side wall of cup body, to make mixed light area to the light emitted by floodlight chip carry out diffuse reflection mixed light processing, while, without causing the influence to the light emitted by light-collecting chip, ensure that lighting equipment present light-collecting and floodlight two kinds of mode reliably carry out, improve the use experience of user.

Description

Technical Field

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

[0002] As portable lighting devices increasingly demand higher brightness and functionality, flashlights employing a combined spotlight and floodlight (multi-chip packaged LED) technology are becoming more widespread. This is because multi-chip packaged LEDs, through a central chip and a circular array of peripheral chips, can simultaneously achieve high luminous flux and long-range illumination. These LEDs typically use this layout to switch between or combine focused and floodlight modes.

[0003] Currently, the reflectors used in the industry for these multi-chip LEDs typically employ a single texture processing technique on their inner surface, meaning the entire reflector is either entirely smooth, or entirely orange peel or scale-like.

[0004] While using a single smooth reflector can maximize the use of the reflected light path and achieve extremely high central light intensity and long-range performance, the light emitted from multiple surrounding chips is difficult to mix effectively. This can easily lead to multiple shadows, stray light spots, or obvious light-dark boundaries in the floodlight area, resulting in poor light spot uniformity and low visual comfort during close-range illumination.

[0005] The situation is different when using a single orange peel or scale-like reflector. Its rough surface texture effectively disperses and mixes the light emitted from multiple chips, resulting in a smooth, highly uniform floodlight spot. However, these textures cause diffuse reflection of light, preventing some light from effectively converging to the central spot, leading to a significant loss of central light intensity and weakening the product's long-range projection capability. Utility Model Content

[0006] In view of this, the purpose of this utility model is to overcome the shortcomings of related technologies, and this utility model provides a reflector and lighting device.

[0007] This utility model provides the following technical solution: A reflective cup includes a cup body and an illumination panel.

[0008] The inner wall of the cup body near the bottom is surrounded by a light mixing zone, where light illuminating the light mixing zone can be diffused and reflected; the inner wall of the cup body away from the bottom is a light focusing zone, where light illuminating the light focusing zone can be directly reflected; the lighting plate is installed at the bottom of the cup body, and the lighting plate is provided with a light focusing chip and a floodlight chip, the light focusing chip is located at the center of the bottom of the cup body, and the floodlight chip is arranged around the periphery of the light focusing chip.

[0009] As a further improvement to the above technical solution, the emission angle of the floodlight chip is α, the illumination center of the floodlight chip extends out with a processing line, the processing line makes an angle β with the bottom plane of the cup body, the intersection point of the processing line with the inner wall of the cup body is a, the intersection point a away from the bottom of the cup body coincides with the adjacent edge line of the light mixing area and the light focusing area, and the value range of α and β satisfies: (180°-α) / 2=β.

[0010] As a further improvement to the above technical solution, the light mixing area is provided with multiple continuous stepped patterns along the axial direction of the cup body.

[0011] As a further improvement to the above technical solution, the transition between two adjacent stepped patterns is an arc.

[0012] As a further improvement to the above technical solution, a diffuse reflection layer is provided on the outer surface of the floodlight unit.

[0013] As a further improvement to the above technical solution, the diffuse reflection layer is composed of an orange peel texture or scale texture evenly distributed on the floodlight unit.

[0014] As a further improvement to the above technical solution, the opening diameter of the reflector cup is D1, the light source diameter of the focusing chip is D2, and the angle of the lens installed corresponding to the cup body is θ. The values ​​of D1, D2, and θ satisfy: D1×sinθ≥D2×1.61.

[0015] As a further improvement to the above technical solution, the light source shape of the floodlight chip is formed by splicing multiple floodlight chips to form a ring around the focusing chip.

[0016] The present invention also provides a lighting device, including a reflector as described in any of the above.

[0017] Compared with related technologies, the beneficial effects of this utility model are: The reflector provided by this invention allows users to activate the floodlight chip simply by selecting the floodlight mode of their lighting equipment according to their actual needs. Under normal operating conditions, the light emitted by the floodlight chip within its emission angle range has a clear propagation path. A portion of the light is emitted directly from the reflector's body, quickly illuminating the target area; while another portion is concentrated in a focusing area on the inner wall of the reflector, away from the bottom. This portion of light, under the special structure of the focusing area, undergoes precise reflection and ultimately exits the reflector at a suitable angle.

[0018] However, during the illumination process of the floodlight chip, some light rays inevitably exceed its emission angle. If these rays are not properly controlled, they can easily lead to stray light, multiple shadows, or black spots in the center of the lighting equipment, severely affecting the lighting effect. The reflector of this invention solves this problem. These rays exceeding the emission angle of the floodlight chip are directed to a mixing zone on the inner wall of the reflector near the bottom of the reflector. This mixing zone effectively disperses and reflects these rays. The dispersed and reflected light exits the reflector more uniformly, effectively reducing light spot defects in floodlight mode and providing users with a superior floodlight lighting experience.

[0019] When a user switches to the focused lighting mode of the lighting device according to their actual needs, they simply need to activate the focusing chip. The light emitted by the focusing chip also exhibits different characteristics during propagation. A portion of the light with a smaller angle is emitted directly from the cup body, quickly illuminating distant targets with a high-intensity beam; while the other portion of the light with a larger angle illuminates the focusing area on the inner wall of the cup body, away from the bottom. Under the reflection and adjustment effect of the focusing area, these larger-angle light rays are reflected back to form light rays with a smaller beam angle, thereby further enhancing the light intensity of the focused mode, enabling the lighting device to provide bright and concentrated illumination at a greater distance.

[0020] It is worth mentioning that, because the mixing zone is located near the bottom of the cup, and the angle at which the light emitted by the focusing chip is relatively small, the mixing zone has little or no impact on the light intensity of the focusing chip during normal operation. This design ensures that the focusing mode can achieve long-range illumination while maintaining the stability of the central light intensity, providing users with a reliable and efficient focused lighting effect.

[0021] This invention features a zoned design on the inner wall of the reflector cup, separating the light-focusing and light-mixing zones. This zoned design allows the floodlight and spotlight modes to function independently during illumination, without interference. Both the uniform illumination of the floodlight mode and the long-range, high-intensity center beam of the spotlight mode are adequately guaranteed, thus comprehensively improving the user experience when using the lighting equipment.

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This diagram shows a view of the reflector cup in one embodiment of the present invention. Figure 2 This diagram shows a different perspective view of the reflector cup in one embodiment of the present invention; Figure 3 This diagram illustrates another perspective of the reflector cup in one embodiment of the present invention. Figure 4 A partial structural diagram of the reflector cup from one perspective is shown in one embodiment of the present invention.

[0025] Explanation of key component symbols: 100-Cup body; 110-Mixing zone; 111-Stepped texture; 120-Spotlight zone; 200-Lighting panel; 210-Spotlight chip; 220-Floodlight chip. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] Combination Figure 1 , Figure 2 As shown, an embodiment of this utility model provides a reflective cup, including a cup body 100 and an illumination plate 200.

[0032] A light-mixing area 110 is provided around the inner wall of the cup body 100 near the bottom, and the light illuminating the light-mixing area 110 can be diffused and reflected; the inner wall of the cup body 100 away from the bottom is a light-concentrating area 120, and the light illuminating the light-concentrating area 120 can be directly reflected; the lighting plate 200 is installed at the bottom of the cup body 100, and the lighting plate 200 is provided with a light-concentrating chip 210 and a floodlight chip 220. The light-concentrating chip 210 is located at the center of the bottom of the cup body 100, and the floodlight chip 220 is arranged around the periphery of the light-concentrating chip 210.

[0033] The reflector provided in this embodiment allows the user to select the floodlight mode of the lighting equipment according to actual needs simply by activating the floodlight chip 220. Under normal operating conditions, the light emitted by the floodlight chip 220 within its emission angle range has a clear propagation path. A portion of the light is emitted directly from the reflector body 100, quickly illuminating the target area; while another portion is enveloped in the focusing area 120 on the inner wall of the reflector body 100, away from the bottom. This portion of light, under the special structure of the focusing area 120, undergoes precise reflection and ultimately exits the reflector body 100 at a suitable angle.

[0034] However, during the emission of light from the floodlight chip 220, some light rays inevitably exceed its emission angle. If these rays are not properly controlled, they can easily lead to stray light, multiple shadows, or black spots in the center of the lighting equipment, severely affecting the lighting effect. The reflector of this invention solves this problem. These rays exceeding the emission angle of the floodlight chip 220 are directed to the mixing zone 110 on the inner wall of the reflector body 100 near the bottom of the reflector body 100. The mixing zone 110 can perform dispersion reflection processing on these rays. After dispersion reflection, the light emitted from the reflector body 100 is more uniform, effectively reducing the light spot defects that occur in floodlight mode and providing users with a superior floodlight lighting experience.

[0035] When a user switches to the focusing mode of the lighting device according to actual needs, they only need to activate the focusing chip 210. The light emitted by the focusing chip 210 also exhibits different characteristics during propagation. A portion of the light with a smaller angle can be emitted directly from the cup body 100, quickly illuminating distant targets with a high-intensity beam; while another portion of the light with a larger angle will illuminate the focusing area 120 on the inner wall of the cup body 100, away from the bottom of the cup body 100. Under the reflection adjustment effect of the focusing area 120, these larger-angle light rays are reflected again to form light rays with a smaller beam angle, thereby further enhancing the light intensity of the focusing mode, enabling the lighting device to provide bright and concentrated illumination at a greater distance.

[0036] It is worth mentioning that, because the mixing zone 110 is located near the bottom of the cup body 100, and the angle at which the light emitted by the focusing chip 210 is relatively small, the mixing zone 110 has little or no impact on the light intensity of the focusing chip 210 during normal operation. This design ensures that the focusing mode can achieve long-range projection while maintaining the stability of the central light intensity, providing users with a reliable and efficient focused lighting effect.

[0037] This embodiment features a zoned design on the inner wall of the reflector cup 100, with a focusing zone 120 and a mixing zone 110. This zoned design allows the floodlight mode and the focusing mode to function independently during illumination without interference. Both the uniform illumination of the floodlight mode and the long-range, high-intensity center light of the focusing mode are adequately guaranteed, thus comprehensively improving the user experience when using the lighting equipment.

[0038] In some specific embodiments, the emission angle of the floodlight chip 220 is α, and a processing line extends from the illumination center of the floodlight chip 220. The processing line forms an angle β with the bottom plane of the cup body 100. The intersection point of the processing line with the inner sidewall of the cup body 100 is a. The intersection point a away from the bottom of the cup body 100 coincides with the adjacent edge of the mixing area 110 and the focusing area 120. The values ​​of α and β satisfy: (180°-α) / 2=β. Specifically, this can be further explained in conjunction with the actual situation in the prior art. In the prior art, the emission angle α of LEDs usually exhibits a Lambertian distribution, with an angle of approximately 120°. According to the above formula, when α is 120°, the angle β between the processing line and the bottom plane of the cup body 100 is 30°. This angle setting allows the structure of the reflector cup to perfectly match the emission characteristics of the floodlight chip 220.

[0039] By extending the mixing zone 110 from the bottom of the inner wall of the reflector 100 to the intersection point a, the mixing zone 110 can accurately receive all the uneven light emitted by the floodlight chip 220 that exceeds the emission angle. If this light exceeds the emission angle and is not processed, it often leads to undesirable lighting effects such as light spots, ghosting, and black spots. The mixing zone 110 acts like a light "harmonizer," dispersing this portion of the light. After dispersion, the light distribution becomes more uniform. When this light finally exits from the reflector, it provides users with a higher quality and more uniform lighting effect, effectively reducing the generation of light spots, ghosting, and black spots, and improving the overall performance and user experience of the lighting equipment.

[0040] like Figure 4 As shown, in some specific embodiments, the light mixing area 110 is provided with multiple continuous stepped textures 111 along the axial direction of the cup body 100. This stepped dispersion treatment ensures that the light emitted from the reflector is evenly distributed in floodlight mode, preventing issues such as light spots, ghosting, or black spots that affect the lighting effect. Whether for close-up observation or long-distance illumination, it provides users with a soft, comfortable, and uniform lighting environment, effectively ensuring the user experience in floodlight mode and meeting users' needs for high-quality lighting.

[0041] In some specific embodiments, there is an arc transition between two adjacent stepped patterns 111 to ensure continuity in the process of non-uniform light dispersion beyond the emission angle emitted by the floodlight chip 220.

[0042] In some specific embodiments, a diffuse reflection layer is provided on the outer surface of the floodlight unit. The diffuse reflection layer is composed of an orange peel texture or scale texture evenly distributed on the floodlight unit. By providing a diffuse reflection layer composed of an orange peel texture or scale texture on the outer surface of the floodlight unit, the mixing and reflection effect of the light mixing area 110 can be significantly improved. When the light emitted by the floodlight chip 220 enters the mixing area 110, it first interacts with the diffuse reflection layer. The light undergoes multiple reflections and scatterings on the surface of the orange peel texture or scale texture, and the light that may have been concentrated or unidirectional is fully dispersed and redistributed. After this series of mixing processes, the light is more evenly distributed when it is emitted from the reflector, effectively avoiding problems such as light spots and uneven brightness, and providing users with a better and more comfortable floodlighting experience.

[0043] In some specific embodiments, the opening diameter of the reflector cup is D1, the light source diameter of the focusing chip 210 is D2, and the angle of the lens installed corresponding to the cup body 100 is θ. The values ​​of D1, D2, and θ satisfy: D1×sinθ≥D2×1.61. This inequality ensures that, given the light source diameter of the focusing chip 210 and the lens angle, the opening diameter of the reflector cup can meet the requirements for effective light convergence, so that the light emitted by the focusing chip 210 can be emitted in the expected direction and angle after the combined action of the reflector cup and the lens, achieving the best focusing effect.

[0044] To more intuitively understand the application of this inequality, we can illustrate it with a specific example. Given that the light source diameter D2 is 1.7 mm and the lens angle θ corresponding to the cup body 100 is 3°, we substitute these values ​​into the aforementioned inequality for calculation. According to trigonometric relationships, sin3° is a fixed value. By calculating the value of D2 × 1.61, and combining this with the inequality D1 × sinθ ≥ D2 × 1.61, we can deduce that the opening diameter D1 of the cup body 100 is at least 57.91 mm. This calculation result provides an accurate basis for ensuring the minimum opening diameter of the cup body 100 when providing optimal light-gathering functionality to the focusing chip 210.

[0045] In actual design and production, this inequality-based calculation method allows for the rapid and accurate determination of the reflector's opening diameter, avoiding poor light focusing due to an excessively large or small opening diameter. Furthermore, the light focusing effect can be further optimized by adjusting the reflector's opening diameter according to actual needs, ensuring the focusing mode reaches the desired minimum design angle. For example, if a smaller focusing angle and more concentrated light are required, the reflector's opening diameter can be appropriately increased while satisfying the inequality; conversely, if the focusing angle requirement is relatively relaxed, the opening diameter can be appropriately decreased to achieve the best focusing effect in different scenarios. This flexible parameter adjustment method provides greater convenience and adaptability for the design and application of reflectors.

[0046] In some specific embodiments, the light source shape of the floodlight chip 220 is formed by splicing multiple floodlight chips 220 to form a ring around the focusing chip 210, which facilitates ensuring the light emission coverage of the floodlight chip 220 and ensuring the lighting effect of the floodlight mode of the lighting device.

[0047] like Figure 3 As shown, an embodiment of this utility model also provides a lighting device, including a reflector as described in the above embodiment. The lighting device has all the effects of a reflector, which will not be described in detail here.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0049] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A reflective cup, characterized in that, include: The cup body (100) has a light-mixing area (110) surrounding the inner wall near the bottom of the cup body (100), where light illuminating the light-mixing area (110) can be diffused and reflected; the inner wall away from the bottom of the cup body (100) is a light-focusing area (120), where light illuminating the light-focusing area (120) can be directly reflected; An illumination panel (200) is installed at the bottom of the cup body (100). The illumination panel (200) is provided with a focusing chip (210) and a floodlight chip (220). The focusing chip (210) is located at the center of the bottom of the cup body (100), and the floodlight chip (220) is arranged around the periphery of the focusing chip (210).

2. The reflector cup according to claim 1, characterized in that, The emission angle of the floodlight chip (220) is α. A processing line extends from the illumination center of the floodlight chip (220). The processing line forms an angle β with the bottom plane of the cup body (100). The intersection point of the processing line with the inner sidewall of the cup body (100) is a. The intersection point a away from the bottom of the cup body (100) coincides with the adjacent edge of the mixing area (110) and the focusing area (120). The range of values ​​for α and β satisfies: (180°-α) / 2=β.

3. The reflector cup according to claim 2, characterized in that, The light mixing area (110) is provided with a plurality of continuous stepped textures (111) along the axial direction of the cup body (100).

4. The reflector cup according to claim 3, characterized in that, The two adjacent stepped patterns (111) are connected by a rounded transition.

5. The reflector cup according to claim 3, characterized in that, The stepped texture (111) has multiple continuous floodlight units evenly distributed around the cup body (100).

6. The reflector cup according to claim 5, characterized in that, The outer surface of the floodlight unit is provided with a diffuse reflection layer.

7. The reflector cup according to claim 6, characterized in that, The diffuse reflection layer consists of an orange peel texture or scale texture evenly distributed on the floodlight unit.

8. The reflector cup according to claim 1, characterized in that, The opening diameter of the reflector cup is D1, the light source diameter of the focusing chip (210) is D2, and the angle of the lens installed corresponding to the cup body (100) is θ. The values ​​of D1, D2, and θ satisfy: D1×sinθ≥D2×1.

61.

9. The reflector cup according to any one of claims 1 to 8, characterized in that, The light source shape of the floodlight chip (220) is formed by splicing multiple floodlight chips (220) to form a ring around the focusing chip (210).

10. A lighting device, characterized in that, Includes the reflector cup as described in any one of claims 1 to 9.

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