Multifunctional LED linear screen projection lighting lamp

Abstract

The utility model provides a multifunctional LED linear projection screen lighting lamp, which relates to the technical field of lamps, and comprises a shell, a reflection projection screen suite capable of reflecting projection screen is arranged in the shell, the reflection projection screen suite comprises lamp beads and free-form surface reflectors corresponding to the lamp beads, the free-form surface reflectors comprise curved reflective mirror surfaces, and the reflective mirror surfaces are arranged on the lamp beads. The lamp beads and the reflective mirror face are installed in an included angle of 5-60 degrees, and the distance between the shell and the lighting area is 10-70 cm so that a light source generated by the lamp beads can be mapped to the reflective mirror face and can be projected to the lighting area through the reflective mirror face. The lamp beads and the reflective mirror faces are arranged in a one-to-one correspondence mode, the included angles are formed between the lamp beads and the reflective mirror faces, light sources emitted by the lamp beads can be accurately projected to the corresponding reflective mirror faces, the reflective mirror faces reflect and project a screen to a lighting area, the structure can accurately prevent dazzle and control light, efficient transverse flow driving is achieved, and the light emitting efficiency is improved. The LED linear projection screen illumination lamp has the very ideal anti-dazzle, high-brightness and high-uniformity effects.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, and in particular to a multifunctional LED linear projection lighting lamp. Background Art

[0002] There are many specific places such as school smart blackboard lighting, museum exhibition hall mural lighting, subway track advertising sign lighting and some special places lighting. At present, it is difficult for lamps on the market to solve many pain points such as glare, astigmatism, uniformity, light utilization, energy consumption cost and maintenance (taking the subway as an example).

[0003] According to the actual information collected, the current campus blackboard lighting glares teachers; the blackboard is not uniform enough and there are reflective spots on the blackboard, which leads to physical and mental disorders such as decreased vision, aversion to learning, and discomfort for students and teachers. Some domestic rail transit companies, including Beijing Metro, Shenzhen Metro, Shanghai Metro, Guangzhou Metro, Changsha Metro, Qingdao Metro, Kunming Metro, Chengdu Metro, etc., have planned to set up track advertising billboards on some lines. The light sources used are all LED light sources, and the layout of the light sources mostly adopts the method of top lighting, top and bottom lighting, or opposite side lighting. From the current presentation effect of domestic subway track billboards, there are currently several problems:

[0004] 1. The average brightness of the surface is not enough; if the power is increased, it will not save energy, the cost will be high and there will be increased safety hazards; most of the current product solutions are realized through traditional line lights or floodlights, and the light distribution is unreasonable, resulting in low effective light utilization on the surface, and it is difficult to achieve illumination. At the same time, because the brightness of the platform environment lighting itself is relatively high, the visual sensitivity of the picture is significantly reduced after the screen door is seen through the track sign.

[0005] 2. The brightness uniformity is very poor; since the width of the upper and lower sides of the track sign is about 3 meters, and it is limited by the safe distance of the lamps in the track area, and most of the current product designs are based on brightness, without considering that the reflective surface should be designed according to the brightness uniformity. The track sign uses an external light source to project the reflective effect, which is different from the working principle of the light source through the light box. Because the track sign is a reflective interface, the actual brightness uniformity of most sign surfaces is currently below 0.6, so there are obvious light and dark areas on the screen, and the visual sensory comfort experience is very poor.

[0006] 3. Severe glare: Judging from the application cases of several subway companies that have been installed and put into use in China, whether it is the up and down lighting method or the side lighting method, due to the inaccurate light control of the lamp itself, there is an obvious glare problem when looking from the direction of the subway driving path, which will affect the visual comfort and operating safety of the locomotive driver.

[0007] 4. The pipelines in the track area are highlighted, affecting the aesthetics. Since the current light source scheme for track signs has inaccurate light control, the area around the track sign is illuminated, causing all hidden pipelines in the track area to be highlighted, seriously affecting the visual aesthetics.

[0008] The existing projection lamps for track billboard advertising lighting have met the demand for large-format advertising. In view of the many imperfect problems of current track billboards, it is necessary to provide a lighting fixture with high brightness and good uniformity, while reducing glare, simple, safe and reliable structure, and easier maintenance. Utility Model Content

[0009] The purpose of the utility model is to provide a multifunctional LED linear projection lighting fixture to achieve the technical effects of improving the brightness uniformity of the irradiated area, reducing glare, and eliminating stray light.

[0010] The utility model is implemented through the following technical scheme: it includes a shell, in which a reflective projection kit capable of reflecting and projecting a screen is installed, the reflective projection kit includes lamp beads and free-form surface reflectors corresponding to the lamp beads, the free-form surface reflector includes a curved reflective mirror surface, the lamp beads are installed at an angle to the reflective mirror surface, the angle is 5-60°, and the spacing between the shell and the lighting area is 10-70cm, so that the light source generated by the lamp beads can be mapped onto the reflective mirror surface and projected to the lighting area through the reflective mirror surface.

[0011] In order to better realize the utility model, further, the free-form reflector also includes a mounting seat, and the mounting seat includes a bottom plate and a side plate arranged on the side of the bottom plate, so as to form a groove body, and one end of the reflective mirror surface is installed in the groove body. By setting the mounting seat, the light source of the lamp bead can be accurately irradiated on the reflective mirror surface, thereby improving the light concentration, thereby enhancing the brightness of the lighting area, and at the same time, no scattered light is formed.

[0012] In order to better realize the utility model, further, a lamp board is provided on the top of the mounting seat, and the lamp beads are mounted on the lamp board so that the lamp beads correspond one-to-one with the reflective mirror surface, and there is an installation height difference between the lamp beads and the reflective mirror surface.

[0013] In order to better realize the utility model, further, the inner wall of the shell is provided with a mounting plate and a clamping strip extending inwardly, and the lamp board is installed between the mounting plate and the clamping strip.

[0014] In order to better realize the utility model, further, a limiting plate is provided on the inner wall of the shell extending inwardly, and the reflective projection kit is arranged between the mounting plate and the limiting plate.

[0015] In order to better realize the utility model, further, there are multiple groups of the reflective projection kits, and the multiple groups of the reflective projection kits are arranged linearly so as to enable linear projection to the lighting area.

[0016] In order to better realize the utility model, further, a slide rail is provided on the outer wall of the shell, and a mounting bracket is slidably mounted on the slide rail, and the shell is mounted to the top, bottom or side of the lighting area through the mounting bracket.

[0017] In order to better implement the utility model, further, plugs are provided at both ends of the shell, and a waterproof pad is provided between the plug and the end of the shell.

[0018] In order to better realize the utility model, further, the outer wall of the shell is also provided with a driving power supply, and the driving power supply is electrically connected to the light board.

[0019] In order to better realize the utility model, further, it also includes a glass plate, which is arranged on the shell and corresponds to the reflective projection kit.

[0020] The beneficial effects of the utility model are:

[0021] The utility model arranges lamp beads and reflective mirrors in one-to-one correspondence, and installs the lamp beads and the reflective mirrors at an angle, and cooperates with a mounting base to partially enclose the lamp beads and the reflective mirrors, so that the light source emitted by the lamp beads can be accurately projected onto the corresponding reflective mirrors, and the projection screen is reflected by the reflector toward the illuminated area. This structure can accurately prevent glare and control light, and has efficient cross-current drive. Through on-site testing, the glare value is controlled to UGL9, which is far lower than the international standard of UGL9 not more than 19. The uniformity of the light-receiving surface can reach 93%, which is far higher than the international standard value of more than 85%. Through on-site measurement, it can be clearly seen that the LED linear projection lighting fixture of the present application has a very ideal anti-glare, high brightness and high uniformity effect.

[0022] The utility model sets the distance between the shell and the lighting area to be between 10-70cm. During the implementation process, the distance can be 20cm. Through the setting of the distance and the setting of the angle between the lamp beads and the reflective mirror, a narrow light beam is formed without scattered light, so that the light can be projected more accurately and completely to the lighting area, thereby achieving the goal of improving the efficiency of light utilization, and improving brightness and uniformity.

[0023] The multifunctional LED linear projection lighting fixture provided by this device is easy to install and maintain. It only needs to be installed on the board or wall of the advertising screen. At the same time, it does not affect the replacement of lighting screens such as advertising, thereby reducing capital costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the present invention. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 The structure of the multifunctional LED linear projection lighting fixture provided by the utility model is shown as follows: Figure 1 ;

[0026] Figure 2 An exploded view of the multifunctional LED linear projection lighting fixture provided by the utility model;

[0027] Figure 3 The structure of the multifunctional LED linear projection lighting fixture provided by the utility model is shown as follows: Figure 2 ;

[0028] Figure 4 The structure of the multifunctional LED linear projection lighting fixture provided by the utility model is shown as follows: Figure 3 ;

[0029] Figure 5 A partial schematic diagram of the multifunctional LED linear projection lighting fixture provided by the utility model Figure 1 ;

[0030] Figure 6 A partial schematic diagram of the multifunctional LED linear projection lighting fixture provided by the utility model Figure 2 ;

[0031] icon:

[0032] 100-housing, 110-mounting plate, 120-card strip, 130-limiting plate, 140-slide rail, 150-mounting bracket, 160-plug, 170-waterproof pad, 180-driving power supply, 190-glass plate, 200-reflective projection kit, 210-lamp beads, 220-reflective mirror, 230-mounting seat, 231-bottom plate, 232-side plate, 240-light board. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be described below in conjunction with the accompanying drawings of the present invention.

[0034] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present utility model, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0035] Please see Figures 1 to 6 ,

[0036] The utility model provides a multifunctional LED linear projection lighting fixture. The existing lamps have the problems of insufficient average surface brightness, poor brightness uniformity and severe glare during application. In order to solve the above technical problems, the utility model sets a lamp structure to achieve the purpose of high brightness and strong uniformity, low glare, simple structure and easy installation.

[0037] As shown in the figure, it mainly includes a shell 100, and a reflective projection kit 200 capable of reflecting and projecting a screen is installed in the shell 100. The reflective projection kit 200 includes a lamp bead 210 and a free-form surface reflector corresponding to the lamp bead 210. The free-form surface reflector includes a curved reflective mirror 220. The free-form surface reflector adopts acrylic material, hard coating material and mirror reflective material. The internal structure of the reflective mirror 220 adopts the shape of a free-form surface. The lamp bead 210 uses an LED lamp to enable it to map the LED light source distribution to the reflective mirror 220, and then one-to-one map the projection to the illuminated area through the reflective mirror 220. In addition, it is further limited that the lamp bead 210 and the reflective mirror 2 20 is installed at an angle between them, so that the incident light generated by the lamp bead 210 has a fixed and same incident angle, and the light emitted by the extended reflected light source will hit the curved surface fixed point on the reflective mirror surface 220 at different angles, thereby distributing the light intensity of different points, and controlling the physical quantities such as the light angle and the optical path difference, so that the emitted light of the light source is redistributed to form a specific light spot on the illuminated area, and the LED light source is deflected by a free-form surface lighting method, and the refraction direction and range of the light are accurately controlled to achieve directional lighting, thereby improving the utilization rate of light and increasing the lighting system (that is, reducing glare and astigmatism). Through such a reflection and projection method, the uniformity of the illuminated surface is also further improved.

[0038] In order to be able to use it in more environments, such as on the subway, multiple groups of reflective projection kits 200 are provided. The multiple groups of reflective projection kits 200 are arranged linearly. The specific number of groups can be set according to the lighting area so that they can be evenly arranged in the lighting area. The linear arrangement can improve the uniformity of lighting differences and reduce the generation of light and dark intervals.

[0039] In order to make the structure of the device more perfect and the internal installation more stable, it is further set that the free-form surface reflector is provided with a mounting seat 230. As shown in the figure, the mounting seat 230 includes a bottom plate 231 and a side plate 232. The bottom plate 231 and the side plate 232 are surrounded to form a groove body with top and side openings. The end of the reflective mirror 220 is installed in the groove body to strengthen the installation of the reflective mirror 220. In addition, a lamp board 240 is provided on the top of the groove body. The lamp board 240 is selected from the lamp board 240. The lamp board 240 is preferably a PCB lamp board 240. The lamp beads 210 are installed on the lamp board 240. After installation, one lamp bead 210 can correspond to one reflective mirror 220. As shown in the figure, there is an installation height difference between the lamp bead 210 and the reflective mirror 220. The installation height difference is used for the lamp bead 210 to irradiate the light source on the reflective mirror 220, and then reflect the light through the reflective mirror 220 for projection.

[0040] In addition, a mounting plate 110 and a clip strip 120 extending inwardly are provided on the inner wall of the housing 100, so that a slot is formed between the mounting plate 110 and the clip strip 120, and the light board 240 is installed in the slot, supported by the clip strip 120, and fixed by the mounting plate 110, so that the light board 240 is more firmly installed in the housing 100. After the light board 240 is installed, the mounting seat 230 is fixedly installed on the light board 240, so as to form a stable reflection projection kit 200. In order to achieve a better limiting effect, a limiting plate 130 is further extended inwardly on the inner wall of the housing 100, and the reflection projection kit 200 is installed between the mounting plate 110 and the limiting plate 130.

[0041] In order to make the structure of the device more complete, safer and waterproof, plugs 160 are provided at both ends of the shell 100, and waterproof pads 170 are provided between the plugs 160 and the ends of the shell 100. In addition, glass is installed at the opening of the shell 100, and the glass is installed at the corresponding reflective projection kit 200, and is adhered to the surface of the shell 100 by waterproof silicone glue, so that it can protect the reflective projection kit 200.

[0042] In order to be able to fix the shell 100 in the lighting area, a slide rail 140 is provided on the outer wall of the shell 100, and a mounting bracket 150 is slidably installed on the slide rail 140. The mounting bracket 150 is used to fix it at the top, bottom or side of the lighting area, so that it can achieve uniform illumination of the lighting area. In order to achieve the effect of improving uniformity, etc., it is further limited to a distance of 10-70cm between the shell 100 and the projection lighting area through the mounting bracket 150, which can be adjusted according to the actual application environment.

[0043] The workflow of this utility model is as follows:

[0044] Install the reflective projection kit 200 in the shell 100, install the lamp bead 210 on the lamp board 240, and adjust the angle between the lamp bead 210 and the reflective mirror 220. In this embodiment, the angle is preferably 15°. Then install the plug 160 and the waterproof pad 170 at both ends of the shell 100 in sequence, and install the glass plate 190 on the shell 100. Install the overall lighting fixture on the top, bottom or side of the lighting area through the mounting bracket 150, so that the light source emitted by the lamp bead 210 can be refracted onto the lighting area through the reflective mirror 220.

[0045] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A multifunctional LED linear projection lighting fixture, characterized in that: The invention comprises a shell (100), wherein a reflective screen projection kit (200) capable of reflective screen projection is installed in the shell (100), wherein the reflective screen projection kit (200) comprises a lamp bead (210) and a free-form surface reflector corresponding to the lamp bead (210), wherein the free-form surface reflector comprises a curved reflective mirror surface (220), wherein the lamp bead (210) and the reflective mirror surface (220) are installed at an angle of 5-60°, and wherein the distance between the shell (100) and the illumination area is 10-70 cm, so that the light source generated by the lamp bead (210) can be mapped onto the reflective mirror surface (220) and projected onto the illumination area through the reflective mirror surface (220).

2. The multifunctional LED linear projection lighting fixture according to claim 1, characterized in that: The free-form surface reflector also includes a mounting seat (230), wherein the mounting seat (230) includes a bottom plate (231) and a side plate (232) arranged on the side of the bottom plate (231) to form a groove body, and one end of the reflective mirror surface (220) is mounted in the groove body.

3. The multifunctional LED linear projection lighting fixture according to claim 2, characterized in that: A lamp board (240) is also provided on the top of the mounting seat (230), and the lamp beads (210) are mounted on the lamp board (240) so that the lamp beads (210) correspond to the reflective mirror surface (220) one by one, and there is a mounting height difference between the lamp beads (210) and the reflective mirror surface (220).

4. The multifunctional LED linear projection lighting fixture according to claim 3, characterized in that: The inner wall of the housing (100) is provided with a mounting plate (110) and a clamping strip (120) extending inwardly, and the light board (240) is installed between the mounting plate (110) and the clamping strip (120).

5. The multifunctional LED linear projection lighting fixture according to claim 4, characterized in that: The inner wall of the shell (100) is extended inwardly and is also provided with a limiting plate (130), and the reflective projection kit (200) is arranged between the mounting plate (110) and the limiting plate (130).

6. The multifunctional LED linear projection lighting fixture according to any one of claims 1 to 5, characterized in that: There are multiple groups of the reflective projection kits (200), and the multiple groups of the reflective projection kits (200) are arranged linearly so as to enable linear projection to the lighting area.

7. The multifunctional LED linear projection lighting fixture according to claim 6, characterized in that: A slide rail (140) is also provided on the outer wall of the housing (100), and a mounting bracket (150) is slidably mounted on the slide rail (140), and the housing (100) is mounted to the top, bottom or side of the lighting area via the mounting bracket (150).

8. The multifunctional LED linear projection lighting fixture according to claim 6, characterized in that: Plugs (160) are also provided at both ends of the shell (100), and a waterproof pad (170) is also provided between the plug (160) and the end of the shell (100).

9. The multifunctional LED linear projection lighting fixture according to claim 3, characterized in that: A driving power source (180) is also provided on the outer wall of the housing (100), and the driving power source (180) is electrically connected to the light board (240).

10. The multifunctional LED linear projection lighting fixture according to claim 6, characterized in that: It also includes a glass plate (190), wherein the glass plate (190) is arranged on the housing (100) and corresponds to the reflective projection kit (200).

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