Light shield and lamp
The deformable sunshade design solves the problems of cumbersome and costly sunshade replacement, enabling flexible adjustment and quick adaptation to light patterns, thus reducing replacement costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SIGNIFY HOLDING BV
- Filing Date
- 2025-05-22
- Publication Date
- 2026-04-28
AI Technical Summary
The existing floodlights have fixed installations, which makes replacing the shields cumbersome and costly, and cannot flexibly adapt to different light pattern requirements.
It adopts a deformable light shield design, and the shape and size of the light shield can be adjusted by rotating and extending the second shield to adapt to different light patterns.
It enables flexible adjustment of the light shield, avoids the hassle of replacing the light shield, reduces costs, and can quickly adapt the light pattern to different lighting effect requirements.
Smart Images
Figure CN224175018U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of lighting fixtures, and more particularly to a light shield and a lighting fixture. Background Technology
[0002] Floodlights are a common type of lighting fixture, mainly used to meet the lighting needs of sports fields, stages, building exteriors, billboards, etc.
[0003] A floodlight typically consists of a lamp body and a light shield, with the light shield fixed to one side of the lamp body. The shape of the light shield affects the floodlight's illumination effect, such as the range of light it illuminates. The beam pattern of a floodlight can be changed; under different beam patterns, the floodlight emits light with different illumination ranges. The light shield can block stray light.
[0004] Different application scenarios, such as different events held in a sports stadium, typically have different requirements for lighting effects. When the application scenario changes, the beam pattern of the floodlights can be changed, and the corresponding shades can be replaced to alter the lighting effect. This is not only inconvenient to operate but also costly. Utility Model Content
[0005] The inventors of this application recognized that in related technologies, since the floodlight's shield is fixedly mounted on the floodlight body, the shape of the shield is fixed, and one shield can typically only adapt to one light pattern. Therefore, when changing the floodlight's light pattern, it is necessary to replace it with a shield of a matching shape. This replacement process is cumbersome, and the need for a large number of replaceable shields leads to high costs. The purpose of this application is to provide a shield and a luminaire to solve the problems of cumbersome operation and high cost caused by replacing shields.
[0006] The basic concept proposed by the inventor of this application is to adopt a deformable design so that the light shield can rotate relative to the lamp body to change the shape of the light shield and to extend and retract to change the size. Thus, by rotating the light shield and adjusting its length, the shape of the light shield can be changed to adapt to different light patterns.
[0007] In a first aspect, embodiments of this application provide a light shield, the technical solution of which is as follows: the light shield includes:
[0008] The first cover has a light-incident side and a light-outcrystal side, wherein the light-incident side is used to connect to the light-outcrystal window of the lamp body;
[0009] The second cover has a first end and a second end. The second cover is capable of extending and retracting along its own length. The first end is rotatably connected to the light-emitting side, and the second end is a free end. The extension direction of the rotation axis of the first end relative to the first cover is perpendicular to the length direction of the second cover.
[0010] In some examples, the second cover comprises multiple shells that are slidably fitted together in sequence. The overall length of the second cover is adjusted by the relative sliding between adjacent shells. The second cover has a simple structure and its length is easy to adjust.
[0011] In some examples, the housing includes a first shield, a second shield, and a third shield. The first and second shields are arranged opposite each other, and the two ends of the third shield are respectively connected to the first and second shields. The first, second, and third shields form a groove. This groove-shaped structure, formed by the first, second, and third shields, is simple, easy to manufacture, and has low production costs. When the light shield is installed on the lamp body, with the first, second, and third shields located on three sides of the lamp body, it can block light from three directions.
[0012] In some examples, the plurality of housings includes a first housing and a second housing, the first housing being rotatably connected to the light-emitting side, and the second housing being slidably fitted onto the first housing. The second housing includes two housings, resulting in a simpler structure and avoiding the problem of an excessive number of housings causing the second housing to bend towards the ground due to gravity after elongation.
[0013] In some examples, at least one of the first and second baffles of the first cover has a strip-shaped guide groove extending along the length of the second cover; a first guide member is inserted into the strip-shaped guide groove, the first guide member is fixedly connected to the second cover, and the first guide member is movable along the strip-shaped guide groove. The first guide member cooperates with the strip-shaped guide groove to provide guidance, allowing the cover to move more smoothly along the length of the second cover.
[0014] In some examples, a first scale is arranged along the length of one side of the strip guide groove; the first guide is connected to a first indicator, which points to the first scale. Indicating the first scale with the first indicator facilitates more precise adjustment of the distance the second cover moves relative to the first cover, thereby controlling the length of the second cover.
[0015] In some examples, the first cover includes two opposing first side plates, each of which is provided with an arc-shaped guide groove extending about the rotation axis. A second guide member is inserted into the arc-shaped guide groove, and the second guide member is fixedly connected to the second cover. The second guide member can move along the arc-shaped guide groove. The second guide member cooperates with the arc-shaped guide groove, and during the rotation of the second cover relative to the first cover, the second guide member slides along the arc-shaped guide groove, playing a guiding role and making the rotation of the second cover more stable.
[0016] In some examples, a second scale is arranged along the length of one side of the arc-shaped guide groove; the second guide is connected to a second indicator, which points to the second scale. Indicating the second scale via the second indicator facilitates more precise adjustment of the angle of rotation of the second cover relative to the first cover.
[0017] In some examples, the light-incident side is connected to a flange, and the flange has multiple connection holes for connecting the lamp body. The flange and connection holes facilitate the connection between the light shield and the lamp body.
[0018] Secondly, embodiments of this application also provide a lamp, the lamp comprising a lamp body and any of the light shields described in the first aspect, wherein a first cover of the light shield is connected to the lamp body.
[0019] The beneficial effects of the technical solutions provided in this application include at least the following:
[0020] By setting up a first and a second cover, with the light-incident side of the first cover connected to the lamp body and the second cover connected to the light-emitting side of the first cover, the illumination range of the lamp can be changed using the first and second covers. Since the first end of the second cover is rotatably connected to the first cover, the angle of the second cover can be adjusted to adapt to various light patterns. Because the second cover can extend and retract along its length, its length can be adjusted to adapt to various light patterns. When changing the light pattern of the lamp according to specific lighting effect requirements, only the angle and length of the second cover need to be adjusted to change the overall shape of the light shield, making it compatible with the light pattern, without the need to replace it with a light shield of a different shape. This not only makes adjustment convenient but also avoids the problem of excessive cost caused by setting up many replaceable light shields. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the structure of a lamp provided in an embodiment of this application;
[0023] Figure 2 This is an exploded structural diagram of a light shield provided in an embodiment of this application;
[0024] Figure 3 This is a schematic diagram of the structure of a light shield provided in an embodiment of this application;
[0025] Figure 4 This is a side view of a light shield provided in an embodiment of this application;
[0026] Figure 5 This is a side view of a light shield provided in an embodiment of this application;
[0027] Figure 6 This is a schematic diagram of the structure of a second cover provided in an embodiment of this application;
[0028] Figure 7 yes Figure 5 A magnified view of a portion of the image;
[0029] Figure 8 This is a schematic diagram of the structure of a first cover provided in an embodiment of this application;
[0030] Figure 9 This is a light radiation pattern of a lamp provided in an embodiment of this application;
[0031] Figure 10 This is a schematic diagram of the light emission of a lamp body provided in an embodiment of this application;
[0032] Figure 11 This is a schematic diagram of the light emission of a lamp body provided in an embodiment of this application;
[0033] Figure 12 This is a light radiation pattern of a lamp provided in an embodiment of this application;
[0034] Figure 13 This is a schematic diagram of the light emission of a lamp body provided in an embodiment of this application;
[0035] Figure 14 This is a schematic diagram of the light emission of a lamp body provided in an embodiment of this application.
[0036] Icon labels:
[0037] 1-First cover; 1a-Light-incident side; 1b-Light-outcrystal side; 2-Lens; 3-Second cover; 30-Cover; 301-First shield; 302-Second shield; 303-Third shield; 31-First cover; 311-First scale; 31a-Strip guide groove; 312-Second guide; 313-Second indicator; 314-Rotating shaft; 315-Washer; 32-Second cover; 321-First guide; 322-First indicator; 11-First side plate; 111-Second scale; 11a-Arc-shaped guide groove; 12-Second side plate; 121-Flanged edge; 121a-Connecting hole; 13-Connecting plate; 100-Light shield; 200-Lamp body; 300-Heat sink. Detailed Implementation
[0038] Figure 1 This is a structural schematic diagram of a lamp provided in an embodiment of this application, such as... Figure 1 As shown, the luminaire includes a lamp body 200 and a light shield 100, with the light shield 100 connected to the lamp body 200. The light shield 100 can be connected to one side of the light-emitting window of the lamp body 200, and a lens 2 can be installed in the light-emitting window of the lamp body 200. A heat sink 300 can also be connected to the side of the lamp body 200 facing away from the light-emitting window.
[0039] Figure 2 This is an exploded structural diagram of a light shield provided in an embodiment of this application, as shown below. Figure 2 As shown, the light shield includes a first shield 1 and a second shield 3. The first shield 1 has a light-incident side 1a and a light-exit side 1b, and the light-incident side 1a of the first shield 1 is used to connect to the light-exit window of the lamp body 200.
[0040] Figure 3 This is a schematic diagram of the structure of a light shield provided in an embodiment of this application, as shown below. Figure 3 As shown, the second cover 3 has a first end and a second end, and the second cover 3 can extend and retract along its own length. Arrow A in the figure indicates the extension direction of the second cover 3, and arrow B indicates the shortening direction of the second cover 3.
[0041] The first end of the second cover 3 is rotatably connected to the light-emitting side 1b of the first cover 1. The second end of the second cover 3 is a free end. The extension direction of the rotation axis of the first end of the second cover 3 relative to the first cover 1 is perpendicular to the length direction of the second cover 3.
[0042] By setting up a first cover 1 and a second cover 3, with the light-incident side 1a of the first cover 1 connected to the lamp body 200 and the second cover 3 connected to the light-emitting side 1b of the first cover 1, the illumination range of the lamp can be changed using the first cover 1 and the second cover 3. Since the first end of the second cover 3 is rotatably connected to the first cover 1, the light shield can be adapted to various light patterns by adjusting the angle of the second cover 3.
[0043] Figure 4 and Figure 5 This is a side view of a light shield provided in an embodiment of this application, wherein, Figure 4 and Figure 5 In the middle, the second cover 3 is at different lengths, such as Figure 4 or Figure 5As shown, since the second cover 3 can extend and retract along its length, the light shield can be adapted to various light patterns by adjusting its length. When changing the light pattern of the luminaire according to specific lighting effect requirements, only the angle and length of the second cover 3 need to be adjusted to change the overall shape of the light shield, making it compatible with the light pattern, without the need to replace it with a light shield of a different shape. This not only makes adjustment convenient but also avoids the problem of excessive cost caused by setting up a large number of replaceable light shields.
[0044] like Figure 3 As shown, the second cover 3 may include multiple covers 30, which are slidably connected in sequence.
[0045] Multiple housings 30 are arranged along the length of the second housing 3, with adjacent housings 30 slidingly fitted together. The multiple housings 30 can slide relative to each other, making the second housing 3 a telescopic structure. The overall length of the second housing 3 can be adjusted by the relative sliding between adjacent housings 30. The second housing 3 has a simple structure and its length is easy to adjust.
[0046] The cover 30 can be a groove-shaped structure, and adjacent covers 30 form a sliding fit. One of the adjacent covers 30 can be at least partially accommodated in the other, and the two can slide relative to each other.
[0047] Figure 6 This is a schematic diagram of the structure of a second cover provided in an embodiment of this application, as shown below. Figure 6 As shown, as an example, the housing 30 includes a first baffle 301, a second baffle 302, and a third baffle 303. The first baffle 301 and the second baffle 302 are arranged opposite to each other, and the two ends of the third baffle 303 are respectively connected to the first baffle 301 and the second baffle 302. The first baffle 301, the second baffle 302, and the third baffle 303 form a groove.
[0048] The first shield 301, the second shield 302, and the third shield 303 form a groove-shaped structure, which is simple in structure, easy to manufacture, and low in manufacturing cost. The light shield is installed on the lamp body 200, and the first shield 301, the second shield 302, and the third shield 303 are located on three sides of the lamp body 200, which can block the light from three directions.
[0049] The first baffles 301 of two adjacent covers 30 can fit together, and during the extension and retraction of the second cover 3, the first baffles 301 that fit together slide relative to each other. Correspondingly, the second baffles 302 of two adjacent covers 30 can fit together, and the third baffles 303 of two adjacent covers 30 can fit together.
[0050] like Figure 6As shown, the multiple housings 30 may include a first housing 31 and a second housing 32. The first housing 31 is rotatably connected to the light-emitting side 1b of the first housing 1, and the second housing 32 is slidably sleeved with the first housing 31.
[0051] When it is necessary to change the length of the second cover 3, simply slide the second cover 3 relative to the first cover 1. Compared to setting a larger number of covers 30, in this example, the second cover 3 includes two covers 30, which is simpler in structure and avoids the second cover 3 bending towards the ground due to gravity after it is stretched due to an excessive number of covers 30.
[0052] Figure 7 yes Figure 5 A magnified view of a portion of the image, such as... Figure 7 As shown, the first shielding plate 301 of the first cover 31 has a strip guide groove 31a, which extends along the length direction of the second cover 3.
[0053] A first guide member 321 is inserted in the strip guide groove 31a. The first guide member 321 is fixedly connected to the second cover 32. The first guide member 321 can move along the strip guide groove 31a.
[0054] During the relative movement of adjacent covers 30, for example, during the movement of the second cover 32 relative to the first cover 31, the first guide member 321 slides along the strip guide groove 31a. The first guide member 321 cooperates with the strip guide groove 31a to play a guiding role, so that the cover 30 can move more smoothly along the length direction of the second cover 3.
[0055] In some examples, the first guide 321 may be columnar, with one end of the first guide 321 connected to the second cover 32, and the other end of the first guide 321 extending out of the strip guide groove 31a.
[0056] As an example, the first guide 321 can be threadedly connected to the second housing 32 to facilitate the assembly of the second housing 32. For instance, the second housing 32 can have a threaded hole for connecting the first guide 321. When assembling the second housing 32, the second housing 32 is fitted together with the first housing 31, with the threaded hole facing the strip guide groove 31a. Then, the first guide 321 is passed through the strip guide groove 31a and inserted into the threaded hole.
[0057] For example, the first guide 321 can be a screw. After the second cover 32 is adjusted to be in place relative to the first cover 31, the screw head can be pressed against the surface of the first cover 31 by tightening the first guide 321, thereby locking the second cover 32 and the first cover 31 and preventing the length of the second cover 3 from changing during the use of the lamp.
[0058] In some examples, the second baffle plate 302 of the first cover 31 may also have a strip guide groove 31a, and a first guide member 321 connected to the second cover 32 may also be provided in the strip guide groove 31a of the second baffle plate 302. That is, first guide members 321 are respectively provided on both sides of the second cover 32 to cooperate with the first cover 31. By guiding with two first guide members 321, the sliding of the second cover 32 can be made smoother.
[0059] like Figure 7 As shown, a first scale 311 is arranged on one side of the strip guide groove 31a along its length. A first guide member 321 is connected to a first indicator member 322, which points to the first scale 311.
[0060] During the movement of the second cover 32 relative to the first cover 31, the first indicator 322 can move along the strip guide groove 31a with the first guide 321. By indicating the first scale 311 through the first indicator 322, the distance the second cover 32 moves relative to the first cover 31 can be adjusted more precisely to control the length of the second cover 32.
[0061] The first scale 311 can extend from one end of the strip guide groove 31a to the other end. For example, the measurement range of the first scale 311 can be 0 mm to 40 mm, and the movement range of the first indicator 322 along the strip guide groove 31a can be 40 mm.
[0062] The first indicator 322 can be a pointer. For example, the first indicator 322 can be ring-shaped, fitted over the first guide 321, and fixedly connected to the first guide 321. The side of the first indicator 322 near the first scale 311 has a pointed corner protruding towards the first scale 311. Based on the position of the first scale 311 indicated by the pointed corner, the distance that the second cover 32 moves relative to the first cover 31 can be determined.
[0063] In some examples, when it is necessary to adjust the length of the second cover 3, the first guide 321 can be loosened first to release the lock on the second cover 32 and the first cover 31, and the first indicator 322 can be pointed to the first scale 311. After adjusting to the required length, the first guide 321 can be tightened.
[0064] Figure 8 This is a schematic diagram of the structure of a first cover provided in an embodiment of this application, as shown below. Figure 8As shown, the first cover 1 may include two opposing first side plates 11. The first cover 1 may also include a second side plate 12 connecting the two first side plates 11. The second side plate 12 may be rectangular, and the two first side plates 11 may be respectively connected to the two ends of the second side plate 12. The second side plate 12 and the two first side plates 11 form a groove.
[0065] As an example, the first cover 1 may further include a connecting plate 13, which may be arranged opposite to the second side plate 12. The connecting plate 13 may be rectangular, and its two ends are respectively connected to the two first side plates 11. The connecting plate 13, the second side plate 12, and the two first side plates 11 form a frame. In addition to providing a certain degree of light shading, the connecting plate 13 also serves a reinforcing function, improving the structural stability of the first cover 1 and preventing the two first side plates 11 from deforming and affecting the light shading effect.
[0066] For example, the connecting plate 13 may be connected to the first side plate 11 by screws or welded to the first side plate 11.
[0067] like Figure 8 As shown, the light-incident side 1a of the first cover 1 is connected to a flange 121, and the flange 121 has a plurality of connection holes 121a for connecting the lamp body 200.
[0068] When the light shield is assembled to the lamp body 200, the light-emitting window of the lamp body 200 can be inserted into the first shield 1, and the flange 121 can abut against and connect to the lamp body 200. Providing multiple connecting holes 121a allows for easy insertion of screws into the connecting holes 121a, and the flange 121 can be connected to the lamp body 200 by screws.
[0069] In addition, to improve the stability of the connection between the light shield and the lamp body 200, one or more of the first side plate 11, the second side plate 12, and the connecting plate 13 may also be provided with holes for connecting to the lamp body 200 by screws.
[0070] The second cover 3 can be rotatably connected to the first side plate 11. For example... Figure 7 As shown, the side wall of the second cover 3 can be connected to a rotating shaft 314, and the first side plate 11 can have a through hole. The rotating shaft 314 is inserted into the through hole and is clearance-fitted with the through hole, so that the second cover 3 can rotate relative to the first cover 1 around the rotating shaft 314.
[0071] A washer 315 may be fitted onto one end of the pivot 314 located on the outer side of the first side plate 11. The opposite side of the two first side plates 11 is the inner side of the first side plate 11, and the second cover 3 is located between the two first side plates 11, that is, on the inner side of the two first side plates 11. The outer side of the first side plate 11 can refer to the side opposite to the inner side of the first side plate 11. A stop portion may be connected to the end of the pivot 314, and the washer 315 may be located between the first side plate 11 and the stop portion. The washer 315 can prevent the stop portion from damaging the surface of the first side plate 11.
[0072] For example, the pivot 314 can be a screw, and the stop can be the screw head. The screw can be threaded into the second cover 3. When the second cover 3 rotates relative to the first cover 1, after the second cover 3 has rotated to the correct position, the pivot 314 can be tightened to press the stop against the surface of the first side plate 11, thereby locking the second cover 3 and the first cover 1 and preventing the second cover 3 from rotating during the use of the lamp.
[0073] like Figure 7 As shown, the first side plate 11 is provided with an arc-shaped guide groove 11a, which extends around the rotation axis. Here, the rotation axis refers to the rotation axis of the second cover 3 relative to the first cover 1.
[0074] A second guide member 312 is inserted into the arc-shaped guide groove 11a, and the second guide member 312 is fixedly connected to the second cover 3. The second guide member 312 can move along the arc-shaped guide groove 11a.
[0075] The second guide member 312 cooperates with the arc-shaped guide groove 11a. During the rotation of the second cover 3 relative to the first cover 1, the second guide member 312 slides along the arc-shaped guide groove 11a, which plays a guiding role and makes the rotation of the second cover 3 more stable.
[0076] In some examples, the second guide 312 may be columnar, with one end of the second guide 312 connected to the second housing 32 and the other end of the second guide 312 extending out of the arc-shaped guide groove 11a.
[0077] As an example, the second guide 312 can be threadedly connected to the second housing 32 to facilitate the assembly of the second housing 32. For example, the second housing 32 can have a threaded hole for connecting the second guide 312. When assembling the second housing 32, the second housing 32 is fitted together with the first housing 31, so that the threaded hole is opposite to the arc-shaped guide groove 11a, and then the second guide 312 is inserted into the threaded hole through the arc-shaped guide groove 11a.
[0078] For example, the second guide 312 can be a screw. After the second cover 3 is rotated into position relative to the first cover 1, the screw head can be pressed against the surface of the first cover 1 by tightening the second guide 312, thereby locking the second cover 3 and the first cover 1 and preventing the second cover 3 from rotating relative to the first cover 1 during the use of the lamp.
[0079] like Figure 7 As shown, a second scale 111 is arranged on one side of the arc-shaped guide groove 11a along its own length direction; the second guide 312 is connected to a second indicator 313, which points to the second scale 111.
[0080] During the rotation of the second cover 3 relative to the first cover 1, the second indicator 313 can move along the arc-shaped guide groove 11a with the second guide 312. The second indicator 313 indicates the second scale 111, which facilitates more precise adjustment of the rotation angle of the second cover 3 relative to the first cover 1.
[0081] The second scale 111 can extend from one end of the arc-shaped guide groove 11a to the other end. For example, the arc-shaped guide groove 11a can be a quarter circle arc, the measurement range of the second scale 111 can be 0° to 90°, and the movement range of the second indicator 313 along the arc-shaped guide groove 11a can be 90°.
[0082] The second indicator 313 can be a pointer. For example, the second indicator 313 can be ring-shaped, fitted over the second guide 312, and fixedly connected to the second guide 312. The side of the second indicator 313 near the second scale 111 has a pointed corner protruding towards the second scale 111. The angle of rotation of the second cover 3 relative to the first cover 1 can be determined based on the position of the second scale 111 indicated by the pointed corner.
[0083] In some examples, when it is necessary to adjust the angle of the second cover 3, the second guide 312 can be loosened first to release the lock on the second cover 3 and the first cover 1, and the second indicator 313 can be pointed to the second scale 111. After adjusting to the required angle, the second guide 312 can be tightened.
[0084] In some examples, both first side plates 11 of the first cover 1 may be provided with arc-shaped guide grooves 11a, and the centers of the arc-shaped guide grooves 11a of the two first side plates 11 are located on the rotation axis of the second cover 3 relative to the first cover 1. Each arc-shaped guide groove 11a is provided with a second guide member 312 connected to the second cover 3. That is, second guide members 312 are respectively provided on both sides of the second cover 3 to cooperate with the first cover 1. By guiding with the two second guide members 312, the second cover 3 can rotate more smoothly relative to the first cover 1.
[0085] The two first side plates 11 can each be provided with a second scale 111, and the two second guides 312 can each be connected to a second indicator 313. When adjusting the angle of the second cover 3, the second scale 111 and the second indicator 313 on both sides can be observed to keep the angle indicated by the second indicator 313 on both sides consistent, so as to avoid the second cover 3 from being slightly twisted and affecting the light illumination effect.
[0086] by Figure 1 Taking the lamp shown as an example, when it is necessary to change the light shield to adapt the light pattern, you can change only the length of the second shield 3, or you can change only the angle of rotation of the second shield 3 relative to the first shield 1, or you can change both the length of the second shield 3 and the angle of rotation of the second shield 3 relative to the first shield 1.
[0087] Figure 9 This is a light radiation pattern of a lamp provided in an embodiment of this application, such as... Figure 9 As shown, in some cases, the light provided by the luminaire is rotationally symmetrical, meaning the main emitted light direction is perpendicular to lens 2, and the main emitted light direction is 0°. The length of the second cover 3 can be adjusted according to glare requirements, beam angle, etc. Figure 10 and Figure 11 This is a schematic diagram of the light emission of a lamp body according to an embodiment of this application. The diagram schematically shows the beam angle α. Figure 10 The beam angle α in the middle is less than Figure 11 The beam angle α is adjusted such that if the beam angle decreases, the length of the second cover 3 is extended; if the beam angle increases, the length of the second cover 3 is shortened. For example, when the beam angle is 10°, the length of the second cover 3 can be adjusted to 270mm; when the beam angle is 18°, the length of the second cover 3 can be adjusted to 230mm.
[0088] Figure 12 This is a light radiation pattern of a lamp provided in an embodiment of this application, such as... Figure 12 As shown, in some cases, the light provided by the luminaire is polarized, meaning the main emitted light direction is not perpendicular to lens 2, for example... Figure 12 The main output beam direction is 60°. The second cover 3 can be rotated according to the output beam direction. Figure 13 and Figure 14This is a schematic diagram of a lamp body providing an embodiment of this application, illustrating the direction of the main emitted light. As the polarization angle of the main emitted light increases, the angle of rotation of the second cover 3 relative to the first cover 1 increases; conversely, as the polarization angle of the main emitted light decreases, the angle of rotation of the second cover 3 relative to the first cover 1 decreases. For example, if the light originally provided by the lamp is rotationally symmetrical, and it needs to be adjusted so that the main emitted light is polarized at 5° (i.e., the angle between the main emitted light and the lens 2 is 85°), the second cover 3 can be rotated relative to the first cover 1 to avoid blocking the light. If it needs to be adjusted so that the main emitted light is polarized at 30° or 60°, the second cover 3 can be further rotated relative to the first cover 1.
[0089] In the foregoing description, specific details such as particular system architectures and techniques have been set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted to avoid unnecessary detail that could obscure the description of this application.
[0090] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.
[0091] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0092] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.
[0093] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0094] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. "A plurality" means two or more.
[0095] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.
Claims
1. A light shield, characterized in that, include: The first cover (1) has an incident light side (1a) and an exit light side (1b), wherein the incident light side (1a) is used to connect to the exit light window of the lamp body (200); The second cover (3) has a first end and a second end. The second cover (3) is capable of extending and retracting along its own length direction. The first end is rotatably connected to the light-emitting side (1b). The second end is a free end. The extension direction of the rotation axis of the first end relative to the first cover (1) is perpendicular to the length direction of the second cover (3).
2. The light shield according to claim 1, characterized in that, The second cover (3) includes a plurality of covers (30), which are slidably connected in sequence.
3. The light shield according to claim 2, characterized in that, The cover (30) includes a first shield (301), a second shield (302) and a third shield (303). The first shield (301) and the second shield (302) are arranged opposite to each other. The two ends of the third shield (303) are respectively connected to the first shield (301) and the second shield (302). The first shield (301), the second shield (302) and the third shield (303) form a groove.
4. The light shield according to claim 3, characterized in that, The plurality of housings (30) include a first housing (31) and a second housing (32), wherein the first housing (31) is rotatably connected to the light-emitting side (1b), and the second housing (32) is slidably sleeved with the first housing (31).
5. The light shield according to claim 4, characterized in that, At least one of the first baffle plate (301) and the second baffle plate (302) of the first cover (31) has a strip guide groove (31a) that extends along the length direction of the second cover (3); A first guide member (321) is inserted into the strip guide groove (31a). The first guide member (321) is fixedly connected to the second cover (32). The first guide member (321) can move along the strip guide groove (31a).
6. The light shield according to claim 5, characterized in that, The strip guide groove (31a) has a first scale (311) arranged along its length on one side; the first guide (321) is connected to a first indicator (322), and the first indicator (322) points to the first scale (311).
7. The light shield according to any one of claims 1 to 6, characterized in that, The first cover (1) includes two opposing first side plates (11), each of which is provided with an arc-shaped guide groove (11a) extending around the rotation axis; A second guide member (312) is inserted into the arc-shaped guide groove (11a). The second guide member (312) is fixedly connected to the second cover (3). The second guide member (312) can move along the arc-shaped guide groove (11a).
8. The light shield according to claim 7, characterized in that, The arc-shaped guide groove (11a) has a second scale (111) arranged along its own length direction on one side; the second guide (312) is connected to a second indicator (313), and the second indicator (313) points to the second scale (111).
9. The light shield according to any one of claims 1 to 6 and 8, characterized in that, The light-incident side (1a) is connected to a flange (121), and the flange (121) is provided with a plurality of connection holes (121a) for connecting the lamp body (200).
10. A lamp, characterized in that, It includes a lamp body (200) and a light shield (100) as described in any one of claims 1 to 9, wherein the first cover (1) of the light shield (100) is connected to the lamp body (200).