Lighting device and luminaire

Abstract

The embodiment of the present disclosure provides a lighting device and a lamp. The lighting device comprises a cover assembly and a light emitting assembly; the cover assembly forms a cavity extending along a first direction inside; the light emitting assembly is arranged in the cavity; the light emitting assembly comprises a first light emitting module and a second light emitting module; the first light emitting module comprises a columnar body extending along the first direction and a first substrate surrounding the columnar body, and a plurality of first light emitting units are arranged on the first substrate; the second light emitting module is arranged at one end of the first light emitting module; the second light emitting module comprises a second substrate, and a plurality of second light emitting units are arranged on the second substrate; each second light emitting unit comprises at least one second light emitting device; the second light emitting module further comprises a second lens assembly, the second lens assembly is arranged on the second light emitting unit, and the second lens assembly is used for mixing light of the plurality of second light emitting devices of the plurality of second light emitting units. The lighting device and the lamp of the present disclosure can reduce the glaring degree of light emission.

Description

Technical Field

[0001] This disclosure relates to the field of optical technology, and more particularly to a lighting device and lamp. Background Technology

[0002] LED lights can be placed indoors, such as next to a sofa or bed, to provide supplemental lighting, dimming, and color adjustment, creating a comfortable atmosphere. However, existing LED lights, due to structural design flaws, can be visually glaring and have a limited illumination range, failing to meet user needs. Utility Model Content

[0003] This disclosure provides a lighting device and luminaire to solve or alleviate one or more technical problems in the prior art.

[0004] As a first aspect of the present disclosure, the present disclosure provides a lighting device, including a housing assembly and a light-emitting assembly; The housing assembly has a cavity extending in a first direction inside, and the light-emitting component is disposed in the cavity; The light-emitting component includes a first light-emitting module and a second light-emitting module; The first light-emitting module includes a columnar body extending along a first direction and a first substrate surrounding the columnar body, wherein a plurality of first light-emitting units are provided on the side of the first substrate away from the columnar body. The second light-emitting module is located at one end of the first light-emitting module. The second light-emitting module includes a second substrate. A plurality of second light-emitting units are provided on the side of the second substrate away from the first light-emitting module. Each second light-emitting unit includes at least one second light-emitting device. The second light-emitting module also includes a second lens assembly, which is attached to the second light-emitting unit on the second substrate. The second lens assembly is used to mix the light from multiple second light-emitting devices in multiple second light-emitting units.

[0005] In some embodiments, the second lens assembly includes at least one second lens unit having an incident light surface and an exit light surface. The incident light surface is configured to open toward a first groove surface of the second substrate, and the exit light surface is configured as a second groove surface. The opening direction of the second groove surface is opposite to the opening direction of the first groove surface. The first groove surface is attached to the second substrate and forms a light-incident space between the groove surface and the second substrate. At least one second light-emitting unit is disposed in the light-incident space.

[0006] In some embodiments, the second lens assembly includes a plurality of second lens units, and each second lens unit has a second light-emitting unit disposed within its light-incident space.

[0007] In some embodiments, each second light-emitting unit includes a second light-emitting device, and multiple second light-emitting devices are configured into at least one annular array, and the light-emitting properties of two adjacent second light-emitting devices are different, including at least one of color temperature and color.

[0008] In some embodiments, each second light-emitting unit includes multiple second light-emitting devices, and the light-emitting properties of the multiple second light-emitting devices in each second light-emitting unit are different, including at least one of color temperature and color.

[0009] In some embodiments, a plurality of second light-emitting units are configured as at least one annular array.

[0010] In some embodiments, the second lens assembly includes a second lens unit, and a plurality of second light-emitting units on the second substrate are all located within the light-incident space of the second lens unit.

[0011] In some embodiments, the first groove surface includes a top surface that protrudes toward the second substrate and a first annular surface disposed around the top surface; The second groove surface includes a bottom surface that protrudes in a direction away from the second substrate, and a second annular surface disposed around the bottom surface.

[0012] In some embodiments, the second groove surface is provided with a plurality of micro-protrusion structures.

[0013] In some embodiments, the multiple second light-emitting devices of the multiple second light-emitting units include red light beads, green light beads, and blue light beads; or, The multiple second light-emitting units contain multiple second light-emitting devices, including red light bulbs, green light bulbs, blue light bulbs, and white light bulbs.

[0014] In some embodiments, the luminous intensity of second light-emitting devices of the same color is the same.

[0015] In some embodiments, each first light-emitting unit includes multiple first light-emitting devices, and the light-emitting properties of the multiple first light-emitting devices in each first light-emitting unit are different, including at least one of color temperature and color.

[0016] In some embodiments, the first substrate is a flexible circuit board, which is attached to the outer surface of the columnar body.

[0017] In some embodiments, the first substrate includes a plurality of rigid circuit boards extending along a first direction, and a plurality of first light-emitting units arranged along the first direction are provided on the rigid circuit boards. Multiple rigid circuit boards are fixed to the outer periphery of the columnar body by positioning components and / or adhesive on the outer surface of the columnar body.

[0018] In some embodiments, the first light-emitting module further includes a first lens assembly, which is used to uniformly emit light from multiple first light-emitting units of multiple rigid circuit boards in multiple planes perpendicular to the first direction.

[0019] In some embodiments, the first lens assembly includes a plurality of first lens units extending along a first direction, the plurality of first lens units corresponding one-to-one with a plurality of rigid circuit boards, and each first lens unit being disposed on the light-emitting side of each rigid circuit board.

[0020] In some embodiments, the first light-emitting module includes a body portion and a transition portion, the transition portion being located between the body portion and the second light-emitting module. The first substrate located in the body portion is arranged parallel to the first direction, and the first substrate located in the transition portion is arranged inclined to the first direction. The area of ​​the first cross-section of the body portion remains constant along the first direction, and the area of ​​the second cross-section of the transition portion gradually decreases from the body portion toward the second light-emitting module. The first cross-section is a cross-section of the body portion at any position perpendicular to the first direction, and the second cross-section is a cross-section of the transition portion at any position perpendicular to the first direction.

[0021] In some embodiments, the deflection angle of the first substrate located in the transition portion relative to the first direction is 5°-20°.

[0022] In some embodiments, the cover assembly includes a first light-emitting cover surrounding the first light-emitting module and a second light-emitting cover surrounding the first light-emitting cover. The first light-emitting cover is made of a semi-transparent material, and the second light-emitting cover is made of a transparent material.

[0023] In some embodiments, the ratio of the radius of the first light-emitting mask to the radius of the column is 1.5 to 4.

[0024] In some embodiments, the second light-emitting module further includes a fixing member, which includes a support wall disposed circumferentially along the second substrate and a limiting wall located at one end of the support wall away from the second substrate. The limiting wall has a limiting hole, and the second lens assembly is limited within the limiting hole.

[0025] As a second aspect of the present disclosure, the present disclosure provides a lamp, including the lighting device of any of the present disclosures, wherein a second light-emitting module is located at the upper end of a first light-emitting module; and further includes a support base for fixing and supporting the lighting device.

[0026] In this embodiment of the technical solution, the light-emitting component is located within the cavity of the cover assembly. The cover assembly protects the light-emitting component and performs light processing. The light-emitting component includes a first light-emitting module and a second light-emitting module. The first light-emitting module extends along a first direction, thereby forming a columnar light-emitting body to achieve circumferential light emission from the lighting device, providing supplementary lighting and illumination to the space along the extension direction of the first light-emitting module. The second light-emitting module is disposed at one end of the first light-emitting module, such as the top, providing supplementary lighting and illumination to the top of the first light-emitting module. Therefore, this lighting device not only has side-emitting and top-emitting capabilities but also provides supplementary lighting and illumination to the surrounding environment from both the side and the top, enhancing the background illumination of the surrounding environment and reducing the glare from the light emitted by the first light-emitting module.

[0027] In addition, in the lighting device of this embodiment, the second lens assembly can mix the light from multiple second light-emitting devices of multiple second light-emitting units, making the light output of the second light-emitting module more uniform and the light emitted by the second light-emitting module softer, thereby improving the user experience.

[0028] The above overview is for illustrative purposes only and is not intended to be limiting in any way. Further aspects, embodiments, and features of this disclosure will become readily apparent from the accompanying drawings and the following detailed description, in addition to the illustrative aspects, embodiments, and features described above. Attached Figure Description

[0029] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments according to this disclosure and should not be construed as limiting the scope of this disclosure.

[0030] Figure 1 This is a schematic cross-sectional view of the lighting device in one embodiment of the present disclosure; Figure 2 This is a schematic diagram of the cross-sectional structure of the upper part of the lighting device in another embodiment; Figure 3 This is a schematic diagram of the structure of the second light-emitting module in one embodiment of the present disclosure; Figure 4 This is a schematic diagram of the structure of the second light-emitting module in another embodiment of the present disclosure; Figure 5 This is a schematic diagram of the structure of the second light-emitting module in yet another embodiment of this disclosure; Figure 6 This is a cross-sectional schematic diagram of the second lens unit in one embodiment; Figure 7 for Figure 3The embodiment omits the A-direction view of the second lens assembly; Figure 8 for Figure 4 The embodiment omits the A-direction view of the second lens assembly; Figure 9 for Figure 3 A schematic diagram of the cross-sectional structure in one embodiment; Figure 10 This is a schematic diagram of the structure of the first substrate in another embodiment of the present disclosure; Figure 11A This is a schematic diagram of the structure of the first light-emitting module in one embodiment of the present disclosure; Figure 11B for Figure 11A A cross-sectional schematic diagram of the first light-emitting module in one embodiment; Figure 12 This is a schematic diagram of the structure of the first light-emitting module in another embodiment of the present disclosure.

[0031] Explanation of reference numerals in the attached figures: 10. Cover assembly; 11. First light-emitting cover; 12. Second light-emitting cover; 20. First light-emitting module; 21. Columnar body; 22. First substrate; 220. Rigid circuit board; 221. First light-emitting unit; 23. First lens assembly; 231. First lens unit; 30. Second light-emitting component; 31. Second substrate; 311. Second light-emitting unit; 32. Second lens assembly; 321. Second lens unit; 3211. First groove surface; 3212. Second groove surface; 322. Connecting plate. Detailed Implementation

[0032] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this disclosure, and different embodiments can be combined arbitrarily without conflict. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0033] To supplement indoor lighting, users typically place light fixtures, such as LED lights, next to sofas or beds. In related technologies, LED light fixtures often employ a columnar structure. While this structure can provide supplemental lighting to the space surrounding the fixture, its effect on the space above and below it is poor, resulting in a significant difference between the emitted light and ambient light. Therefore, this type of light fixture can easily cause glare for users, reducing their comfort.

[0034] To address some problems in the related art, this disclosure provides a lighting device.

[0035] Figure 1 This is a schematic cross-sectional view of the lighting device in one embodiment of the present disclosure. Figure 2 This is a schematic cross-sectional view of the upper part of the lighting device in another embodiment. Figure 1 The second substrate and the second lens assembly in the second light-emitting module 30 are not shown in the schematic diagram. Figure 3 This is a schematic diagram of the structure of the second light-emitting module in one embodiment of the present disclosure. Figure 4 This is a schematic diagram of the structure of the second light-emitting module in another embodiment of the present disclosure. Figure 5 This is a schematic diagram of the structure of the second light-emitting module in yet another embodiment of this disclosure. Figure 1 and Figure 2 As shown, the lighting device includes a housing assembly 10 and a light-emitting component. A cavity 15 is formed inside the housing assembly 10, and the cavity 15 extends along a first direction X. The first direction X can be the length direction of the housing assembly 10; in some embodiments, the first direction X is a vertical direction. The light-emitting component is located within the cavity 15.

[0036] The light-emitting component may include a first light-emitting module 20 and a second light-emitting module 30. Figure 1 The image shows a first light-emitting module 20 and a second light-emitting module 30, but... Figure 1 Only the location of the second light-emitting module 30 is shown; its detailed structure is not shown. For a detailed description of the second light-emitting module 30, please refer to [link / reference needed]. Figures 2-5 The first light-emitting module 20 may include a columnar body 21 extending along a first direction X, and a first substrate 22 surrounding the columnar body 21. The columnar body 21 extends along the first direction X, and a cross-section of the columnar body 21 perpendicular to the first direction X can be referred to as the cross-section of the columnar body 21. Exemplarily, the cross-sectional shape of the columnar body 21 may be polygonal, such as a triangle, quadrilateral, pentagon, or hexagon. The cross-sectional shape of the columnar body 21 may also be a curved shape such as a circle or ellipse. The columnar body 21 may be hollow or solid.

[0037] like Figure 1 As shown, a plurality of first light-emitting units 221 are disposed on the first substrate 22, and the first light-emitting units 221 emit light in a direction away from the columnar body 21. Alternatively, a plurality of first light-emitting units 221 are disposed on the side of the first substrate 22 away from the columnar body 21. Exemplarily, the columnar body 21 can support the first substrate 22 to position it in a predetermined location. The first light-emitting units 221 emit light and generate heat. In another embodiment, the columnar body 21 can be constructed as a heat sink, thereby not only supporting the first substrate 22 but also dissipating heat from it.

[0038] The first light-emitting module 20 extends along the first direction X, thus the first light-emitting module 20 can form a columnar light-emitting body.

[0039] The second light-emitting module 30 can be located at one end of the first light-emitting module 20. For example... Figures 2-5 As shown, the second light-emitting module 30 includes a second substrate 31. A plurality of second light-emitting units 311 are disposed on the side of the second substrate 31 facing away from the first light-emitting module 20. For example, Figure 1 and Figure 2 In this configuration, the second light-emitting module 30 is located at the top or upper end of the first light-emitting module 20, and the second light-emitting unit 311 is disposed on the upper side of the second substrate 31. Each second light-emitting unit 311 includes at least one second light-emitting device 3111.

[0040] like Figures 3-5 As shown, the second light-emitting module 30 also includes a second lens assembly 32. The second lens assembly 32 is attached to the second light-emitting unit 311 of the second substrate 31, and the second lens assembly 32 is used to mix the light from the multiple second light-emitting devices 3111 of the multiple second light-emitting units 311.

[0041] The lighting device of this embodiment has a light-emitting component located within the cavity 15 of the cover assembly 10, which protects the light-emitting component. The light-emitting component includes a first light-emitting module 20 and a second light-emitting module 30. The first light-emitting module 20 extends along a first direction X, forming a columnar light-emitting body to achieve side-emitting of the lighting device, providing supplementary lighting and illumination to the space extending in the direction of the first light-emitting module 20. The second light-emitting module 30 is disposed at one end, such as the top, of the first light-emitting module 20, providing supplementary lighting and illumination to the top of the first light-emitting module 20. Therefore, this lighting device not only has side-emitting and top-emitting capabilities but also provides supplementary lighting and illumination to the surrounding environment from both the side and the top, improving the background illumination of the surrounding environment and reducing the glare from the light emitted by the first light-emitting module.

[0042] In addition, in the lighting device of this embodiment, the second lens assembly 32 can mix the light from the multiple second light-emitting devices 3111 of the multiple second light-emitting units 311, making the light output of the second light-emitting module 30 more uniform and the light emitted by the second light-emitting module 30 softer, thereby improving the user experience.

[0043] Figure 6 This is a cross-sectional schematic diagram of the second lens unit in one embodiment. To further improve the light mixing effect of the second lens assembly 32, in one embodiment, reference is made to... Figures 3-6The second lens assembly 32 may include at least one second lens unit 321. The second lens unit 321 has a light-incident surface and a light-outcident surface. The light-incident surface is configured to open toward a first groove surface 3211 of the second substrate 31. The first groove surface 3211 is fastened to the second substrate 31 and forms a light-incident space 310 between it and the second substrate 311. At least one second light-emitting unit 311 is disposed in the light-incident space 310.

[0044] It is understandable that the light emitted by the second light-emitting unit 311 within the light-incident space 310 enters the second lens unit 321 through the light-incident surface. Constructing the light-incident surface into a first grooved surface 3211 increases the area of ​​the light-incident surface, which facilitates the entry of more light into the second lens unit 321. The light-incident space 310 is formed between the first grooved surface 3211 and the second substrate 31. By placing at least one second light-emitting unit 311 within the light-incident space 310, it can be ensured that all light emitted by the second light-emitting unit 311 within the light-incident space 310 can enter the second lens unit 321 through the first grooved surface 3211, reducing light loss and improving the brightness of the second light-emitting module 30.

[0045] like Figure 6 As shown, the light-emitting surface is constructed as a second groove surface 3212, and the opening direction of the second groove surface 3212 is opposite to the opening direction of the first groove surface 3211. This type of light-emitting surface can converge light while simultaneously diffusing it, preventing cross-interference between adjacent second lens units 321. Furthermore, this arrangement increases the light-emitting area of ​​the light-emitting surface, which is beneficial for the interlocking of adjacent second lens units 321, thereby forming a uniformly bright light spot on the illumination plane of the second lens assembly 32.

[0046] In this embodiment, by setting the light-incident surface as the first groove surface 3211 and the light-outceasing surface as the second groove surface 3212, the light rays emitted from the light-incident surface can be focused together, reducing the light spot area and increasing the light spot brightness. This reduces the brightness contrast between side-emitting and top-emitting light, making the side-emitting light less dazzling. Furthermore, it allows for better light mixing of the light emitted by the second light-emitting unit 311 within the light-incident space 310, reducing the color shift phenomenon of the emitted light from the second lens unit 321. As a result, the second light-emitting module 30 can form a planar light spot on the illumination plane, improving the illumination effect of the second light-emitting module 30. This, in turn, enhances the supplementary lighting effect of the lighting device and provides a comfortable atmosphere.

[0047] In one embodiment, such as Figure 6 As shown, the first groove surface 3211 includes a top surface 3211a protruding toward the second substrate 31, and a first annular surface 3211b surrounding the top surface 3211a. Figure 6In the middle, the top surface 3211a protrudes downward, and the top surface 3211a and the first annular surface 3211b form a light-incident surface. The top surface 3211a, the first annular surface 3211b, and the surface of the second substrate 31 define a light-incident space 310. The second recessed surface 3212 includes a bottom surface 3212a that protrudes in a direction away from the second substrate 31, and a second annular surface 3212b disposed around the bottom surface 3212a. Figure 6 In the middle, the bottom surface 3212a bulges upward, and the bottom surface 3212a and the second annular surface 3212b form a light-emitting surface.

[0048] In this structure, the first groove surface 3211 and the second groove surface 3212 are shaped such that the light-incident surface and the light-exit surface are both convex relative to the inside of the lens, and both can play a light-focusing role, thus realizing the overall light-focusing of the second lens unit 321.

[0049] For example, the light-incident surface can be textured / frosted. The second recessed surface 3212 can be provided with multiple micro-protrusion structures. The micro-protrusion structures can be textured / frosted. Thus, the second lens unit 321 can disperse the light, allowing different colors of light to mix, thereby improving the overall light mixing effect of the lens unit.

[0050] In one embodiment, such as Figure 3 and Figure 4 As shown, the second lens assembly 32 may include multiple second lens units 321. Each second lens unit 321 may have a second light-emitting unit 311 disposed within its light-incident space 310. With this structure, each second lens unit 321 can mix light with the second light-emitting unit 311 within its light-incident space 310, thereby achieving overall light emission from the second lens assembly 32.

[0051] For example, such as Figure 3 As shown, each second light-emitting unit 311 includes a second light-emitting device 3111, meaning that a second light-emitting device 3111 is disposed within the light-incident space 310 of each second lens unit 321. Each second light-emitting device 3111 is monochromatic, and each second light-emitting device 3111 corresponds to one second lens unit 321. In this structure, each second lens unit 321 mixes the light of one second light-emitting device 3111, therefore, the light emitted by each second lens unit 321 is not color-biased. After the light emitted by each second lens unit 321 is mixed in the area above the first light-emitting module 20, a light spot is formed on the illumination plane.

[0052] Figure 7 for Figure 3 A-direction view in one embodiment ( Figure 7 The second lens assembly 32 is not shown in the image. Figure 7As shown, multiple second light-emitting devices 3111 are configured in at least one ring array, and the light-emitting properties of two adjacent second light-emitting devices 3111 are different. The light-emitting properties may include at least one of color temperature and color. For example, Figure 7 In this embodiment, the second light-emitting device 3111 can be an LED bead, which can be a red LED bead, a green LED bead, a blue LED bead, or a white LED bead. The red LED bead, green LED bead, blue LED bead, and white LED bead can emit red light, green light, blue light, and white light respectively.

[0053] In the lighting device, the first light-emitting module 20 is cylindrical 21, and multiple second light-emitting devices 3111 are arranged in a ring array. This ensures that the ring surfaces of the top-emitting and side-emitting lights are consistent, resulting in a more uniform transition between the side-emitting and top-emitting lights. Setting adjacent second light-emitting devices 3111 to have at least one different color temperature and color facilitates the adjustment of the color temperature and color of the top-emitting light, enabling dimming and color adjustment of the top-emitting light and providing a more comfortable atmosphere.

[0054] In another embodiment, such as Figure 4 As shown, each second light-emitting unit 311 includes multiple second light-emitting devices 3111. The light-emitting properties of the multiple second light-emitting devices 3111 in each second light-emitting unit 311 are different, and the light-emitting properties include at least one of color temperature and color. For example, the colors of the multiple second light-emitting devices 3111 in each second light-emitting unit 311 are different, and the color temperatures may be the same or different; or, the color temperatures of the multiple second light-emitting devices 3111 in each second light-emitting unit 311 are different, and the colors may be the same or different; or, the color temperature and color of the multiple second light-emitting devices 3111 in each second light-emitting unit 311 are both different.

[0055] In this configuration, a second light-emitting unit 311 is disposed within the light-incident space 310 of each second lens unit 321. Each second light-emitting unit 311 includes multiple second light-emitting devices 3111 with different colors and / or color temperatures. Thus, each second light-emitting unit 311 can achieve color temperature and color adjustment, facilitating the overall color temperature and color adjustment of the second lens assembly 32.

[0056] Figure 8 for Figure 4 A-direction view in one embodiment ( Figure 8 (The second lens assembly 32 is not shown). Exemplarily, a plurality of second light-emitting units 311 are configured in at least one annular array. This arrangement ensures that the annular surfaces of the top-emitting and side-emitting units are aligned, resulting in a more uniform transition between the side-emitting and top-emitting units.

[0057] exist Figure 3 and Figure 4In this embodiment, the second lens assembly 32 may further include a connecting plate 322. Adjacent second lens units 321 can be connected into a whole through the connecting plate 322, which facilitates the assembly and manufacturing of the second lens assembly 32 and ensures the structural consistency of multiple second lens units 321 on the second lens assembly 32, thereby ensuring consistent light output performance of each second lens unit 321. The connecting plate 322 may be transparent or opaque, depending on the specific requirements.

[0058] In another embodiment, such as Figure 5 As shown, the second lens assembly 32 may include a second lens unit 321, and a plurality of second light-emitting units 311 on the second substrate 31 are all located within the light-incident space 310 of the second lens unit 321. In this way, the plurality of second light-emitting units 311 emit light through a single second lens unit 321, which can improve the brightness of the second lens unit 321.

[0059] exist Figure 5 In this embodiment, the second light-emitting unit 311 may include multiple second light-emitting devices 3111. For example, each second light-emitting unit 311 may include three or four second light-emitting devices 3111. The light-emitting properties of the multiple second light-emitting devices 3111 in each second light-emitting unit 311 are not the same.

[0060] In one embodiment, the multiple second light-emitting devices 3111 of the multiple second light-emitting units 311 include red light-emitting beads, green light-emitting beads, and blue light-emitting beads. For example, when the second light-emitting unit 311 includes multiple second light-emitting devices 3111, the multiple second light-emitting devices 3111 in each second light-emitting unit 311 may include red light-emitting beads, green light-emitting beads, and blue light-emitting beads, and each bead can be an LED bead. It is understood that the second light-emitting devices 3111 are not limited to LED beads, and other forms of light-emitting devices can also be used.

[0061] In one embodiment, the multiple second light-emitting devices 3111 of the multiple second light-emitting units 311 include red LEDs R, green LEDs G, blue LEDs B, and white LEDs W. For example, when the second light-emitting unit 311 includes multiple second light-emitting devices 3111, the multiple second light-emitting devices 3111 in each second light-emitting unit 311 may include red LEDs R, green LEDs G, blue LEDs B, and white LEDs W. When the second light-emitting unit 311 includes one second light-emitting device 3111, the multiple second light-emitting devices 3111 may include red LEDs R, green LEDs G, and blue LEDs B, or red LEDs R, green LEDs G, blue LEDs B, and white LEDs W. It should be noted that the multiple second light-emitting devices 3111 are not limited to the four types of LEDs listed above, but may also be LEDs of other colors and color temperatures, which can be set as needed.

[0062] By setting multiple second light-emitting devices 3111 of multiple second light-emitting units 311 to LED beads of different colors, the color temperature and brightness of the second light-emitting module 30 can be adjusted by adjusting the brightness or color temperature of each LED bead, thus meeting the diverse needs of users.

[0063] To reduce the difficulty of control, the second light-emitting devices 3111 of the same color in the second light-emitting module 30 have the same brightness. This facilitates color and temperature adjustment of the second light-emitting devices 3111 of the same color, reducing the difficulty of color temperature control.

[0064] To facilitate a smoother transition from the first light-emitting module 20 to the second light-emitting module 30 and reduce the differences between the two light-emitting modules, in one embodiment, each first light-emitting unit 221 includes multiple first light-emitting devices. The light-emitting properties of these devices in each first light-emitting unit 221 are different, including at least one of color temperature and color. In this way, the first light-emitting unit 221 and the second light-emitting unit 311 can adopt the same structure, and the color and color temperature of both side-emitting and top-emitting light can be adjusted. Furthermore, top-emitting light and side-emitting light can provide similar emission color temperature and color, allowing the first light-emitting module 20 to transition more smoothly to the second light-emitting module 30, reducing the light difference between the two, improving the comfort of side-emitting light while providing a consistent and harmonious light emission effect.

[0065] like Figure 1 As shown, to further reduce the glare of the side-emitting light, the housing assembly 10 may include a first light-emitting cover 11 and a second light-emitting cover 12. The first light-emitting cover 11 covers the periphery of the first light-emitting module 20, and the second light-emitting cover 12 covers the periphery of the first light-emitting cover 11. The first light-emitting cover 11 is made of a semi-transparent material, and the second light-emitting cover 12 is made of a transparent material. By making the first light-emitting cover 11 of a semi-transparent material, the uniformity of the side-emitting light can be improved, and the glare of the side-emitting light can be reduced. The second light-emitting cover 12 can protect the lighting device. In addition, the second light-emitting cover 12 can also be decorated with patterns, textures, etc., to modify its appearance and light pattern.

[0066] The cross-sectional shapes of the first light-emitting mask 11 and the second light-emitting mask 12 can be the same as the cross-sectional shape of the cylindrical body 21. For example, the first light-emitting mask 11 and the second light-emitting mask 12 can be cylindrical. The ratio of the radius of the first light-emitting mask 11 to the radius of the cylindrical body 21 is 1.5 to 4. For example, the ratio of the radius of the first light-emitting mask 11 to the radius of the cylindrical body 21 can be 1.5, 2, 2.5, 3, 3.5, or 4. This ratio setting not only ensures uniform light emission from the first light-emitting mask 11 but also improves light emission efficiency and optimizes visual effects.

[0067] Figure 9 for Figure 3 A schematic diagram of a cross-sectional structure in one embodiment. (Reference) Figure 1 , Figure 2 , Figure 5 as well as Figure 9 As shown, the second light-emitting module 30 may further include a fixing member 33. The fixing member is used to support and fix the second light-emitting module 30. The fixing member 33 may include a support wall 331 and a limiting wall 332. The support wall 331 is disposed along the circumference of the second substrate 31, and the limiting wall 332 is located at the end of the support wall 331 away from the second substrate 31. The limiting wall 332 is provided with a limiting hole 333, and the second lens assembly 32 is defined within the limiting hole 333. The upper surface of the limiting wall 332 may be flush with the upper surface of the second lens assembly 32.

[0068] This structure confines the second lens assembly 32 within the limiting hole 333 of the limiting wall 332, with the second substrate 31 located below the second lens assembly 32. This allows the second lens assembly 32 to be fixed above the second substrate 31, simplifying its installation and improving the assembly efficiency of the second light-emitting module 30. Furthermore, the shape of the fixing member 33 matches the overall top-emitting light shape, achieving not only better fixation but also reducing the area occupied by the second light-emitting module 30.

[0069] The second lens assembly 32 is confined within the limiting hole 333, achieving positioning of the upper end of the second lens assembly 32. In one embodiment, to better position the second lens assembly 32, such as... Figure 4 As shown, a positioning hole 312 may be provided on the second substrate 31, and a positioning post 323 may be provided on the end face of the second lens unit 321 opposite to the second substrate 31. The positioning post 323 is inserted into the positioning hole 312 to position the lower end of the second lens assembly 32.

[0070] In one embodiment, the first light-emitting module 20 may be connected to the cover assembly 10. For example, Figure 1 In the middle, the lower end of the cover assembly 10 can be provided with a first end cap 14, and the lower end of the first light-emitting module 20 can be connected to the first end cap 14.

[0071] The fastener 33 can be connected to the first light-emitting module 20. For example, as... Figure 1 and Figure 2 As shown, a cover plate 24 may be provided at the top of the first light-emitting module 20, and the lower end of the fixing member 33 may be connected to the cover plate 24. Exemplarily, the second substrate 31 may be mounted on the upper surface of the cover plate 24, and the second lens assembly 32 may be fastened to the second substrate 31, with the upper end of the second lens assembly 32 being limited within the limiting hole of the fixing member 33.

[0072] like Figure 5 and Figure 9 As shown, the cross-sectional area of ​​the support wall 331 gradually increases in the direction away from the second substrate 31, that is, the cross-sectional area of ​​the support wall 331 gradually increases from bottom to top, thus the support wall 331 is constructed as an inverted cone structure. Therefore, the light-emitting area of ​​the second light-emitting module 30 gradually increases in the light-emitting direction, which can increase the light spot area of ​​the second light-emitting module 30.

[0073] In one embodiment, such as Figure 5 and Figure 9 As shown, the limiting wall 332 extends from the circumferential edge of the supporting wall 331 toward the center and forms a limiting hole 333.

[0074] In another embodiment, such as Figure 2 As shown, the limiting wall 332 extends outward from the circumferential edge of the support wall 331. A limiting hole 333 is formed at the upper circumferential edge of the support wall 331. Figure 2 In this embodiment, the lower surface of the limiting wall may be provided with a first limiting rib 3321 and a second limiting rib 3322 circumferentially, with the first limiting rib 3321 located around the second limiting rib 3322. The upper end of the first light-emitting cover 11 is engaged between the first limiting rib 3321 and the second limiting rib 3322, and the upper end of the second light-emitting cover 12 is provided with a stepped groove 121, the inner side of which respectively mates with the outer side of the first limiting rib 3321 and the outer peripheral surface of the limiting wall 332.

[0075] For example, such as Figure 1 and Figure 2 As shown, the lighting device may further include a second end cap 13, which is located at the upper end of the housing assembly 10 and above the second light-emitting module 30. The second end cap 13 is connected to the upper edge of the second light-emitting cover 12. Thus, the second end cap 13 and the housing assembly 10 together confine the light-emitting component within the cavity 15. The second end cap 13 includes a light-transmitting material to ensure that the second light-emitting module can emit light from the upper side.

[0076] In one embodiment, the first substrate 22 can be a flexible circuit board, which can be attached to the outer surface of the columnar body 21. Multiple rows of first light-emitting units 221 can be arranged on the first substrate 22 along the circumference of the columnar body 21. In this way, the first substrate 22 can be adapted to columnar bodies 21 of various shapes, improving the versatility of the first substrate 22.

[0077] Figure 10 This is a schematic diagram of the structure of the first substrate in another embodiment of the present disclosure, as shown below. Figure 10As shown, the first substrate 22 may include multiple rigid circuit boards 220. Each rigid circuit board 220 extends along a first direction X, and multiple first light-emitting units 221 arranged along the first direction X are disposed on the rigid circuit board 220. The multiple rigid circuit boards 220 may be uniformly disposed on the outer surface of the columnar body 21 along its circumference. The substrate of the rigid circuit board 220 may be a metal substrate, and the material of the metal substrate may include metals such as aluminum or copper. The rigid circuit board 220 may also be a printed circuit board (PCB), and the substrate material of the printed circuit board may be a flame-retardant material, such as FR-4.

[0078] exist Figure 10 In the first substrate 22, there are three rigid circuit boards 220. The three rigid circuit boards 220a, 220b, and 220c are uniformly disposed on the outer surface of the columnar body 21 along the circumference of the columnar body 21.

[0079] The cross-sectional shape of the column 21 can be polygonal, and the number of rigid circuit boards 220 can be the same as the number of sides of the polygon. Each rigid circuit board 220 can be disposed on the surface corresponding to one side of the column 21. For example, if the cross-sectional shape of the column 21 is triangular, the number of rigid circuit boards can be three, and the three rigid circuit boards are respectively disposed on the outer surfaces corresponding to the three sides of the column 21. The cross-sectional shape of the column 21 can also be circular, that is, the column 21 is cylindrical.

[0080] Multiple rigid circuit boards 220 are fixed to the outer surface of the columnar body 21 by positioning components and / or adhesive backing.

[0081] For example, the outer surface of the columnar body 21 can be provided with positioning components for fixing the first substrate 22. For instance, the columnar body 21 has multiple ribs arranged circumferentially, each rib extending along a first direction X, and a positioning groove for a rigid circuit board is formed between two adjacent ribs. The rigid circuit board can be mounted at the positioning groove; or, the rigid circuit board 220 can be fixed to the outer surface of the columnar body 21 by positioning components such as screws or studs; or, the rigid circuit board 220 can be fixed to the outer periphery of the columnar body 21 by adhesive backing. The rigid circuit board 220 can also be fixed to the outer surface of the columnar body 21 in other ways, which will not be listed here.

[0082] When the number of rigid circuit boards 220 is small, and multiple rigid circuit boards 220 are arranged along the circumference of the column 21 on the outer surface of the column 21, the gap between two adjacent rigid circuit boards 200 is large, which will lead to uneven lateral light emission and even vertical stripe shadows.

[0083] Figure 11A This is a schematic diagram of the structure of the first light-emitting module in one embodiment of the present disclosure. Figure 11B for Figure 11A A schematic cross-sectional view of the first light-emitting module in one embodiment. In one embodiment, as shown... Figure 11A and Figure 11B As shown, the first light-emitting module 20 may further include a first lens assembly 23. The first lens assembly 23 is disposed on the light-emitting side of the rigid circuit board 220. The first lens assembly 23 is used to uniformly emit light from the multiple first light-emitting units 221 of the multiple rigid circuit boards 220 in multiple planes perpendicular to the first direction X. The direction perpendicular to the first direction X is called the second direction, and the plane perpendicular to the first direction X can be called the second direction plane. For example, the first lens assembly 23 can extend along the first direction X, and the first lens assembly 23 can be disposed around the periphery of the multiple rigid circuit boards 220. Thus, the first lens assembly 23 can uniformly emit light from the multiple first light-emitting units 221 surrounding the columnar body 21 in each second direction plane, so that the light emission around the columnar body 21 is uniform and vertical stripe shadows are avoided in the side-emitting light.

[0084] The first lens assembly 23 may include a plurality of first lens units 231, which may extend along a first direction X. The plurality of first lens units 231 correspond one-to-one with a plurality of rigid circuit boards 220. For example, in Figure 11B In this assembly, first lens units 231a, 231b, and 231c correspond one-to-one with rigid circuit boards 220a, 220b, and 220c, respectively, with each first lens unit 231 disposed on the light-emitting side of each rigid circuit board 220. Multiple first lens units 231 can be interconnected to form a first lens assembly 23. Along the circumferential direction of the columnar body 21, the first lens unit 231 can be a lens that is thin in the middle and thick at both ends. Therefore, the first lens unit 231 can diffuse the light emitted by the first light-emitting unit 221 located in the middle towards both ends, allowing the first light-emitting units 221 on adjacent rigid circuit boards to mix their light, thereby improving the light emission uniformity of the first light-emitting module 20 in the circumferential direction.

[0085] Figure 12 This is a schematic diagram of the structure of the first light-emitting module in another embodiment of the present disclosure. The first light-emitting module 20 may include a body portion 201 and a transition portion 202, with the transition portion 202 located between the body portion 201 and the second light-emitting module 30. The area of ​​the first cross-section of the body portion 201 remains constant along the first direction X, and the first cross-section is a cross-section of the body portion 201 at any position perpendicular to the first direction X. That is, the body portion 201 is a columnar body 21 with a constant cross-sectional area.

[0086] exist Figure 12In this configuration, the first direction X is vertical, and the second light-emitting module 30 is located above the first light-emitting module 20. The area of ​​the second cross-section of the transition portion 202 gradually decreases from the main body portion 201 toward the second light-emitting module 30, and the second cross-section is a cross-section of the transition portion 202 at any position perpendicular to the first direction X. In other words, the transition portion 202 is a columnar body 21 with a cross-sectional area that gradually decreases from bottom to top.

[0087] The first substrate 22 located in the main body 201 is arranged parallel to the first direction X, and the first substrate 22 located in the transition part 202 is arranged at an angle to the first direction X.

[0088] It is understandable that if the first light-emitting module 20 on the columnar body 21 is directly transformed into the second light-emitting module 30, a dark area is likely to appear between the side light emission and the top light emission. In this embodiment, a transition section 202 is provided between the main body 201 and the second light-emitting module 30. The main body 201 transitions to the second light-emitting module 30 through the transition section 202. The first light-emitting unit 221 located in the transition section 202 can supplement the dark area between the side and the top, so that the side light emission transitions to the top light emission through the transition section 202, and the brightness can be smoothly transitioned, thus improving the dark area problem.

[0089] To better mitigate the shadowing issue, the first substrate 22 located in the transition section 202 is deflected by an angle β relative to the first direction X of 5°-20°. For example, the angle β can be 5°, 10°, 15°, or 20°. This arrangement allows the first light-emitting unit 221 located in the transition section 202 to emit light towards the dark area, thus improving the dark area problem.

[0090] This disclosure also provides a lamp, which includes the lighting device 100 in any embodiment of this disclosure. The lamp may further include a support base for fixing and supporting the lighting device 100. Exemplarily, the support base includes a base and a support column, the support column being disposed on the base and extending along a first direction X. The lower end of the first light-emitting module 20 in the lighting device 100 is connected to the upper end of the support column, and the second light-emitting module 30 in the lighting device 100 is located above the first light-emitting module 20.

[0091] The lamp disclosed herein not only has side-emitting and top-emitting functions, but can also provide supplementary lighting and illumination to the surrounding environment from both the side and the top, thereby improving the background lighting of the surrounding environment and reducing the glare from the side-emitting light. The second lens assembly 32 in the second light-emitting module 30 can mix the light from the multiple second light-emitting devices 3111 of the multiple second light-emitting units 311, making the light output of the second light-emitting module 30 more uniform, reducing the glare from the top-emitting light, and improving the user experience.

[0092] In the description of this specification, 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," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0093] 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 disclosure, "multiple" means two or more, unless otherwise explicitly specified.

[0094] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "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, an electrical connection, or a communication 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 disclosure according to the specific circumstances.

[0095] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0096] The foregoing disclosure provides many different implementations or examples for carrying out different structures of this disclosure. To simplify this disclosure, the components and arrangements of specific examples are described above. Of course, these are merely examples and are not intended to limit this disclosure. Furthermore, reference numerals and / or reference letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0097] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this disclosure. Different parts of different embodiments can be combined with each other without conflict, and these should all be covered within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A lighting device, characterized in that, Includes the housing assembly and the light-emitting assembly; The cover assembly forms a cavity extending along a first direction, and the light-emitting component is disposed in the cavity; The light-emitting component includes a first light-emitting module and a second light-emitting module; The first light-emitting module includes a columnar body extending along the first direction and a first substrate surrounding the columnar body, wherein a plurality of first light-emitting units are provided on the side of the first substrate opposite to the columnar body. The second light-emitting module is located at one end of the first light-emitting module. The second light-emitting module includes a second substrate. A plurality of second light-emitting units are provided on the side of the second substrate away from the first light-emitting module. Each second light-emitting unit includes at least one second light-emitting device. The second light-emitting module further includes a second lens assembly, which is attached to the second light-emitting unit of the second substrate. The second lens assembly is used to mix the light from at least one of the second light-emitting devices of the plurality of second light-emitting units.

2. The lighting device according to claim 1, characterized in that, The second lens assembly includes at least one second lens unit, the second lens unit having an incident light surface and an exit light surface, the incident light surface being configured to open toward a first groove surface of the second substrate, the exit light surface being configured as a second groove surface, the opening direction of the second groove surface being opposite to the opening direction of the first groove surface; The first groove surface is fastened onto the second substrate, and a light-incident space is formed between the first groove surface and the second substrate. At least one second light-emitting unit is disposed in the light-incident space.

3. The lighting device according to claim 2, characterized in that, The second lens assembly includes a plurality of second lens units, and each second lens unit has a second light-emitting unit disposed within the light-incident space.

4. The lighting device according to claim 3, characterized in that, Each second light-emitting unit includes a second light-emitting device, and multiple second light-emitting devices are configured into at least one ring array, and the light-emitting properties of two adjacent second light-emitting devices are different, the light-emitting properties including at least one of color temperature and color.

5. The lighting device according to claim 3, characterized in that, Each second light-emitting unit includes multiple second light-emitting devices, and the light-emitting properties of the multiple second light-emitting devices in each second light-emitting unit are different, including at least one of color temperature and color.

6. The lighting device according to claim 5, characterized in that, The plurality of second light-emitting units are configured into at least one annular array.

7. The lighting device according to claim 2, characterized in that, The second lens assembly includes a second lens unit, and a plurality of the second light-emitting units on the second substrate are all located within the light-incident space of the second lens unit.

8. The lighting device according to claim 2, characterized in that, The first groove surface includes a top surface that protrudes toward the second substrate and a first annular surface disposed around the top surface; The second groove surface includes a bottom surface that protrudes toward the direction away from the second substrate, and a second annular surface disposed around the bottom surface.

9. The lighting device according to claim 8, characterized in that, The second groove surface is provided with multiple micro-protrusion structures.

10. The lighting device according to claim 1, characterized in that, The multiple second light-emitting units contain multiple second light-emitting devices, including red light-emitting beads, green light-emitting beads, and blue light-emitting beads; or, The multiple second light-emitting devices of the multiple second light-emitting units include red light beads, green light beads, blue light beads, and white light beads.

11. The lighting device according to claim 10, characterized in that, The second light-emitting devices of the same color have the same luminous brightness.

12. The lighting device according to claim 10, characterized in that, Each first light-emitting unit includes multiple first light-emitting devices, and the light-emitting properties of the multiple first light-emitting devices in each first light-emitting unit are different, including at least one of color temperature and color.

13. The lighting device according to any one of claims 1-12, characterized in that, The first substrate is a flexible circuit board, which is attached to the outer surface of the columnar body.

14. The lighting device according to any one of claims 1-12, characterized in that, The first substrate includes multiple rigid circuit boards extending along the first direction, and the rigid circuit boards are provided with a plurality of first light-emitting units arranged along the first direction; Multiple rigid circuit boards are fixed to the outer periphery of the columnar body by positioning components and / or adhesive on the outer surface of the columnar body.

15. The lighting device according to claim 14, characterized in that, The first light-emitting module further includes a first lens assembly, which is used to uniformly emit light from multiple first light-emitting units of multiple rigid circuit boards in multiple planes perpendicular to the first direction.

16. The lighting device according to claim 15, characterized in that, The first lens assembly includes a plurality of first lens units extending along the first direction, and the plurality of first lens units correspond one-to-one with the plurality of rigid circuit boards, with each first lens unit disposed on the light-emitting side of each rigid circuit board.

17. The lighting device according to any one of claims 1-12, characterized in that, The first light-emitting module includes a body portion and a transition portion. The transition portion is located between the body portion and the second light-emitting module. The first substrate located in the body portion is arranged parallel to the first direction, and the first substrate located in the transition portion is arranged at an angle relative to the first direction. The area of ​​the first cross-section of the main body remains constant along the first direction, and the area of ​​the second cross-section of the transition portion gradually decreases from the main body toward the second light-emitting module. The first cross-section is a cross-section of the main body at any position perpendicular to the first direction, and the second cross-section is a cross-section of the transition portion at any position perpendicular to the first direction.

18. The lighting device according to claim 17, characterized in that, The first substrate located in the transition section is deflected at an angle of 5°-20° relative to the first direction.

19. The lighting device according to any one of claims 1-12, characterized in that, The cover assembly includes a first light-emitting cover surrounding the first light-emitting module and a second light-emitting cover surrounding the first light-emitting cover. The first light-emitting cover is made of a semi-transparent material, and the second light-emitting cover is made of a transparent material.

20. The lighting device according to claim 19, characterized in that, The ratio of the radius of the first light-emitting mask to the radius of the columnar body is 1.5 to 4.

21. The lighting device according to claim 19, characterized in that, The second light-emitting module further includes a fixing member, which includes a support wall arranged circumferentially along the second substrate and a limiting wall located at one end of the support wall away from the second substrate. The limiting wall has a limiting hole, and the second lens assembly is limited within the limiting hole.

22. A lamp, characterized in that, The lighting device comprising any one of claims 1-21, wherein the second light-emitting module is located at the upper end of the first light-emitting module; The lamp also includes a support base for fixing and supporting the lighting device.

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