Optical Component and Lamp

Abstract

The present invention provides an optical component and a lamp. The optical component includes a plurality of first optical parts distributed in a ring shape and a plurality of second optical parts disposed around the outer periphery of the first optical parts. The plurality of first optical parts enclose a first reflecting surface for reflecting light. A gap for accommodating the first optical parts is provided between adjacent second optical parts. The first optical parts are configured to be able to move along the radial direction of the optical component to between adjacent second optical parts, so as to jointly enclose a second reflecting surface for reflecting light with the second optical parts. The cross-sectional area of the opening of the second reflecting surface is larger than the cross-sectional area of the opening of the first reflecting surface. Compared with the prior art, the present invention changes the beam angle by directly changing the shape of the optical component and can be freely switched, with a wide application range and good lighting effect.

Description

Technical Field

[0001] The present invention relates to an optical component and a lighting fixture, belonging to the field of lighting technology. Background Art

[0002] In the field of lighting fixtures, the beam angle reflects the spot size and light intensity after the light is emitted. Different beam angles will bring different lighting effects. However, the beam angles of traditional lighting fixtures are mostly fixed, and the lighting angle and intensity cannot be changed. They are not flexible enough to be adjusted according to the needs of external lighting, and it is difficult to meet the usage requirements of different occasions.

[0003] In order to obtain lighting fixtures with different beam angles, a current solution is to use two light sources in combination with optical elements. By adjusting the distance between the optical elements and the two light sources and enabling one of the two light sources according to the scene, different beam angles and lighting effects can be obtained. However, this kind of lighting fixture has a large number of components and a complex adjustment process, which is not conducive to user use and the experience is not good.

[0004] In view of this, it is necessary to propose an optical component and a lighting fixture to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an optical component and a lighting fixture that can adjust the light output angle of the light source.

[0006] To achieve the above object, the present invention provides an optical component, including a plurality of first optical parts distributed in a ring shape and a plurality of second optical parts arranged around the outer periphery of the first optical parts. The plurality of first optical parts enclose a first reflecting surface for reflecting light. A gap for accommodating the first optical parts is provided between adjacent second optical parts. The first optical parts are configured to be able to move along the radial direction of the optical component to between adjacent second optical parts, so as to jointly enclose a second reflecting surface for reflecting light with the second optical parts. The cross-sectional area of the opening of the second reflecting surface is larger than the cross-sectional area of the opening of the first reflecting surface.

[0007] As a further improvement of the present invention, the first optical part includes a first side surface and a second side surface for reflection. The first side surface is formed on the inner side of the first optical part, and adjacent first side surfaces are continuous in the first reflecting surface. The second side surfaces are provided on both sides of the first optical part to abut against adjacent first optical parts.

[0008] As a further improvement of the present invention, the second optical part includes a third side surface for reflection and a fourth side surface arranged towards the adjacent second optical parts on both sides. The first side surface is continuous with the adjacent third side surface in the second reflecting surface. The fourth side surface is used for fitting with the second side surface.

[0009] As a further improvement of the present invention, a limiting portion for limiting the first optical portion is further provided outside the second optical portion, and the width of the limiting portion is greater than the width of the third side surface.

[0010] As a further improvement of the present invention, both the first side surface and the third side surface are curved surfaces, and the widths of the first side surface and the third side surface gradually increase along the light-emitting direction of the reflected light.

[0011] As a further improvement of the present invention, the distance between adjacent second optical portions is equal to the width of the first optical portion, so that the shape of the first optical portion adapts to the gap.

[0012] As a further improvement of the present invention, it further includes an annular fixing member. The second optical portions are fixedly and circumferentially arranged on the fixing member. The first optical portion is arranged between adjacent second optical portions. The first optical portion has a fixed end arranged close to the fixing member and a free end arranged away from the fixing member. The first optical portion is rotationally connected to the fixing member through the fixed end, so that the first optical portion moves radially outward along the optical component.

[0013] As a further improvement of the present invention, a hook is formed on the fixed end, and the hook is connected to the fixing member, so that the first optical portion can rotate relative to the fixing member.

[0014] As a further improvement of the present invention, the optical component further includes a sliding member arranged in a ring and coaxially with the fixing member. A connecting rod is arranged between the sliding member and the first optical portion. The connecting rod is rotationally connected to the sliding member and the first optical portion respectively. By controlling the movement of the sliding member relative to the fixing member, the first optical portion can be driven to rotate around the fixing member.

[0015] To achieve the above object, the present invention provides a lamp, including the optical component and a lamp body as described above.

[0016] As a further improvement of the present invention, a light source is provided on the lamp body. The fixing member is fixed on the lamp body and circumferentially arranged outside the light source. A sliding groove for accommodating the hook is formed on the lamp body, and the hook can rotate relative to the fixing member along the sliding groove.

[0017] As a further improvement of the present invention, the sliding member is sleeved outside the lamp body, and the sliding member can slide along the extending direction of the lamp body.

[0018] The beneficial effects of the present invention are as follows: By directly changing the shape of the optical component, the present invention can change the beam angle and can be freely switched, with a wide application range and good lighting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the lighting fixture of the present invention in the first state.

[0020] Figure 2 is an exploded structural diagram of the lighting fixture of the present invention.

[0021] Figure 3 is a schematic structural diagram of the lighting fixture of the present invention in the second state.

[0022] Figure 4 is a schematic structural diagram of the second reflecting surface of the lighting fixture of the present invention in the second state.

[0023] Figure 5 is Figure 4 an enlarged schematic diagram of part A in

[0024] Figure 6 is a schematic cross-sectional view of a part of the structure of the lighting fixture of the present invention after removing the first optical part.

[0025] Figure 7 is Figure 6 an enlarged schematic diagram of part B in

[0026] Figure 8 is a schematic diagram of the lighting fixture of the present invention after removing most of the structure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Here, it should be noted that in order to avoid obscuring the present invention due to unnecessary details, only the structures and / or processing steps closely related to the solution of the present invention are shown in the drawings, while other details less related to the present invention are omitted.

[0029] In addition, it should also be noted that the term "comprises", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0030] Such as Figures 1 to 8As shown, the present invention discloses a lamp 100, in which an optical component 10 equivalent to a reflector is provided, the optical component 10 has a first state and a second state, and can be switched freely between the first state and the second state, and the optical component 10 forms a smaller reflector structure in the first state, and forms a larger reflector structure in the second state, so that the lamp 100 can change the beam angle of the light. For the sake of clarity, the following description will take the lamp 100 as an example for detailed description.

[0031] like Figure 1 and Figure 2 As shown, the lamp 100 includes an optical component 10 and a lamp body 20, the lamp body 20 includes a cylindrical shell and a light source component (not shown) disposed in the shell, the light source component includes a light source disposed on one end surface of the shell, the light source component is preferably a point light source, the optical component 10 has a trumpet-shaped optical cavity and an end cover with a smaller opening is disposed on the light source, and the surface of the optical cavity is formed with a reflective surface for reflecting light. It can be understood that the extension direction of the central axis of the optical component 10 is consistent with the extension direction of the lamp body 20.

[0032] In a preferred embodiment of the present invention, the optical component 10 includes a first optical part 11 and a second optical part 12. The first optical part 11 is provided with a plurality of first reflective surfaces 101 for reflecting light, which are combined and surrounded. The first reflective surface 101 is formed on the inner side of the optical cavity and is horn-shaped. It should be noted that although the first reflective surfaces 101 formed between adjacent first optical parts 11 are continuous, there are still gaps. The adjacent first optical parts 11 should be combined more closely to minimize the gap between the adjacent first optical parts 11 and prevent the reflected light from casting a shadow.

[0033] like Figure 3 and Figure 4 As shown, the first optical portion 11 is configured to be movable and combined with the second optical portion 12 to form a second reflective surface 102 for reflecting light. Since the total width of the first optical portion 11 and the second optical portion 12 increases after being combined, the diameter of the corresponding cross section of the formed second reflective surface 102 increases, and the cross-sectional area of ​​the opening of the second reflective surface 102 is greater than the cross-sectional area of ​​the opening of the first reflective surface 101, the second reflective surface 102 has a larger beam angle.

[0034] Specifically, multiple first optical parts 11 are distributed in a circular pattern. Multiple second optical parts 12 are also distributed in a circular pattern and are arranged around the outer periphery of the first optical parts 11. Moreover, the circle formed by the second optical parts 12 and the circle formed by the first optical parts 11 have the same center. It can be understood that there is a gap for accommodating the first optical parts 11 between adjacent second optical parts 12 so as to cooperate with the first optical parts 11. That is, the gap between adjacent second optical parts 12 is adapted to the shape of the first optical parts 11, and its spacing is equal to the width of the first optical parts 11. Particularly, it is defined that the first optical part 11 has a first position and a second position, and the straight line where the first position to the second position is located is consistent with the radial direction of the optical component 10. That is, the first optical part 11 can move along the radial direction of the optical component 10 to between adjacent second optical parts 12. When the first optical part 11 is in the first position, it forms the first reflecting surface 101, and when it is in the second position with the second optical part 12, it forms the second reflecting surface 102. That is, when each first optical part 11 is in the first position, it is closely combined with adjacent first optical parts 11 so that the optical component 10 is in the first state, and when the first optical part 11 is in the second position, it is closely combined with the second optical part 12 so that the optical component 10 is in the second state.

[0035] In the above embodiment, by switching between the first reflecting surface 101 and the second reflecting surface 102, the optical component 10 can form different reflecting structures, thereby changing the beam angle of the lamp 100. However, it should be noted that since the formed first reflecting surface 101 and second reflecting surface 102 are only continuous when the first optical part 11 is in the first position and the second position, a gradual change cannot be achieved. Moreover, when the first optical part 11 moves between the first position and the second position, the first optical part 11 and the second optical part 12 are arranged in a staggered manner, which does not exclude the lamp 100 from obtaining different light and shadow effects. Of course, the specific structure can be set according to needs and is not limited here.

[0036] As Figure 5As shown, the first optical part 11 is strip-shaped and includes a first side surface 111 for reflection and a second side surface 112. The first side surface 111 is formed on the inner side of the first optical part 11 and the first side surface 111 is a curved surface, preferably a free-form surface. When the first optical part 11 is in the first position, adjacent first side surfaces 111 are continuous within the first reflecting surface 101. Both sides of the first optical part 11 are provided with the second side surfaces 112 to abut against adjacent first optical parts 11. Further, the second side surface 112 can be a plane or a non-plane, including but not limited to a curved surface with a radian, as long as the second side surface 112 can be closely combined with adjacent second side surfaces 112 and make adjacent first side surfaces 111 continuous within the first reflecting surface 101, and there is no limitation here.

[0037] The second optical part 12 is also strip-shaped and includes a third side surface 121 for reflection and a fourth side surface 122 disposed towards adjacent second optical parts 12 on both sides. The third side surface 121 is a curved surface, preferably a free-form surface. When the first optical part 11 is in the second position, the first side surface 111 and adjacent third side surfaces 121 are continuous within the second reflecting surface 102, and the fourth side surface 122 is used to fit with the second side surface 112.

[0038] It should be noted that the second reflecting surface 102 is formed within the optical cavity and is correspondingly trumpet-shaped, that is, along the light-emitting direction of the lamp 100, the cross-sectional area of the second reflecting surface 102 gradually increases. Correspondingly, the widths of the first side surface 111 and the third side surface 121 gradually increase along the light-emitting direction of the reflected light.

[0039] In other embodiments of the present invention, a limiting part 123 for limiting the first optical part 11 is further provided outside the second optical part 12, and the width of the limiting part 123 is greater than the width of the third side surface 121. Further, both sides of the limiting part 123 have guiding surfaces 1231 that cooperate with the first optical part 11, and an inclined surface 113 is correspondingly provided on the back surface of the first optical part 11 so that the first optical part 11 can be smoothly introduced between adjacent second optical parts 12 to prevent misalignment or errors.

[0040] As Figure 6 and Figure 7 shown, in a preferred embodiment of the present invention, the second optical part 12 is fixed on one end surface of the lamp body 20 where the light source is provided. An annular fixing member 21 is provided on the outer periphery of the light source. The second optical parts 12 are arranged in a radially uniform manner around the circumference of the fixing member 21, and a chute 22 opened on the housing is formed between adjacent second optical parts 12.

[0041] Please refer to and combine with Figure 8 As shown, the first optical part 11 is arranged between adjacent second optical parts 12. The first optical part 11 has a narrower fixed end near the fixing part 21 and a wider free end far from the fixing part 21. The first optical part 11 is rotatably connected to the fixing part 21 through the fixed end. Further, a hook 114 is formed on the fixed end. The hook 114 can be received in the sliding groove 22 and connected to the fixing part 21, so that the hook 114 can rotate relative to the fixing part 21 along the sliding groove 22, and further the first optical part 11 can rotate relative to the fixing part 21.

[0042] In other embodiments of the present invention, the optical assembly 10 further includes a sliding part 13 in a ring shape and coaxially arranged with the fixing part 21. The sliding part 13 is sleeved outside the lamp body 20, and the sliding part 13 can slide along the extending direction of the lamp body 20. A connecting rod 14 is arranged between the sliding part 13 and the first optical part 11. The connecting rod 14 is rotatably connected to the sliding part 13 and the first optical part 11 respectively. By controlling the reciprocating movement of the sliding part 13 relative to the fixing part 21, all the first optical parts 11 can be driven to rotate synchronously around the fixing part 21, and further the first optical part 11 can be switched between a first position and a second position. It should be noted that a locking structure that cooperates with each other can be arranged between the sliding part 13 and the lamp body 20 to fix the position of the sliding part 13 relative to the lamp body 20, so that the first optical part 11 is fixed at the first position or the second position. Of course, the relative position between the sliding part 13 and the lamp body 20 can be adjusted by including but not limited to friction, and can be specifically set according to needs, and no limitation is made here.

[0043] In summary, the present invention changes the beam angle by directly changing the shape of the optical assembly 10, and can be freely switched, with a wide application range and good lighting effect.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An optical component (10) for a lighting fixture, characterized in that: it includes a plurality of first optical parts (11) distributed in a ring shape and a plurality of second optical parts (12) disposed around the outer periphery of the first optical parts (11). The plurality of first optical parts (11) enclose a first reflecting surface (101) for reflecting light. A gap for accommodating the first optical parts (11) is provided between adjacent second optical parts (12). The first optical parts (11) are configured to be able to move along the radial direction of the optical component (10) to between adjacent second optical parts (12) to jointly enclose a second reflecting surface (102) for reflecting light. The cross-sectional area of the opening of the second reflecting surface (102) is larger than the cross-sectional area of the opening of the first reflecting surface (101); the first optical part (11) includes a first side surface (111) and a second side surface (112) for reflection. The first side surface (111) is formed on the inner side of the first optical part (11), and adjacent first side surfaces (111) are continuous within the first reflecting surface (101). The second side surfaces (112) are provided on both sides of the first optical part (11) to abut against adjacent first optical parts (11).

2. The optical component (10) according to claim 1, characterized in that: the second optical part (12) includes a third side surface (121) for reflection and a fourth side surface (122) disposed toward the adjacent second optical parts (12). The first side surface (111) and the adjacent third side surface (121) are continuous within the second reflecting surface (102). The fourth side surface (122) is used for fitting with the second side surface (112).

3. The optical component (10) according to claim 2, characterized in that: a limiting part (123) for limiting the first optical part (11) is further provided on the outer side of the second optical part (12), and the width of the limiting part (123) is larger than the width of the third side surface (121).

4. The optical component (10) according to claim 2, characterized in that: both the first side surface (111) and the third side surface (121) are curved surfaces, and the widths of the first side surface (111) and the third side surface (121) gradually increase along the light-emitting direction of the reflected light.

5. The optical component (10) according to claim 1, characterized in that: the distance between adjacent second optical parts (12) is equal to the width of the first optical part (11), so that the shape of the first optical part (11) is adapted to the gap.

6. The optical component (10) according to claim 1, characterized in that: It further includes an annular fixing member (21). The second optical part (12) is fixedly and circumferentially arranged on the fixing member (21). The first optical part (11) is arranged between adjacent second optical parts (12). The first optical part (11) has a fixed end arranged close to the fixing member (21) and a free end arranged away from the fixing member (21). The first optical part (11) is rotatably connected to the fixing member (21) through the fixed end, so that the first optical part (11) moves outward along the radial direction of the optical component (10).

7. The optical component (10) according to claim 6, wherein: a hook (114) is formed on the fixed end, and the hook (114) is connected to the fixing member (21), so that the first optical part (11) can rotate relative to the fixing member (21).

8. The optical component (10) according to claim 6, wherein: the optical component (10) further includes a sliding member (13) which is annular and coaxially arranged with the fixing member (21). A connecting rod (14) is arranged between the sliding member (13) and the first optical part (11). The connecting rod (14) is rotatably connected to the sliding member (13) and the first optical part (11) respectively. By controlling the movement of the sliding member (13) relative to the fixing member (21), the first optical part (11) can be driven to rotate around the fixing member (21).

9. A lamp (100), wherein: it includes the optical component (10) according to any one of claims 1-8 and a lamp body (20). The optical component (10) includes an annular fixing member (21) and a sliding member (13) coaxially arranged with the fixing member (21). The first optical part (11) has a fixed end arranged close to the fixing member (21). A hook (114) is formed on the fixed end, and the hook (114) is connected to the fixing member (21).

10. The lamp (100) according to claim 9, wherein: a light source is arranged on the lamp body (20). The fixing member (21) is fixed on the lamp body (20) and circumferentially arranged outside the light source. A chute (22) for receiving the hook (114) is formed on the lamp body (20). The hook (114) can rotate relative to the fixing member (21) along the chute (22).

11. The lamp (100) according to claim 9, wherein: the sliding member (13) is sleeved outside the lamp body (20), and the sliding member (13) can slide along the extending direction of the lamp body (20).

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