Extremely wide-angle projection device below eye level

Abstract

This utility model discloses an ultra-wide-angle projection device below eye level, comprising a light source, a reflector, and a support. The reflector is mounted on a mounting surface and contains multiple reflective surfaces capable of primary reflection. Through specific reflective optical design and in conjunction with the unevenness of the ground or building surface, a portion of vertical illuminance is converted into horizontal illuminance, achieving both vertical and horizontal illumination for a three-dimensional lighting effect. This device can generate wide-angle, wide-range, and effective light distribution in multiple directions, including long distances, short distances, and both sides and edges, providing visually comfortable, highly uniform, and low-glare lighting while reducing environmental light pollution and decreasing the wattage and number of lamps. It is suitable for various indoor and outdoor applications, offering high energy efficiency and environmental friendliness.

Description

Technical Field

[0001] This utility model belongs to the field of lighting technology, specifically relating to an ultra-wide-angle lighting device below eye level. It achieves ultra-wide-angle, large-range light distribution through innovative multi-faceted reflection optical calculation, and combines high illuminance uniformity, low glare characteristics, and environmental friendliness to meet lighting requirements. Background Technology

[0002] Currently, most floodlights used in general lighting are installed at a high position, using high-power light sources or special lenses to expand the projection range. However, excessive height can lead to the following problems:

[0003] (1) Low lighting efficiency: All lighting follows the principle that illuminance is inversely proportional to the square of the distance. The farther the projection distance, the more energy is needed to meet the illuminance requirements. Moreover, when the light passes through a long distance of space, the microparticles and water vapor in the air will cause reflection and scattering, which will hinder the light from reaching the area to be illuminated. As a result, the ineffective light increases sharply and the effective light decreases sharply.

[0004] (2) Glare problem and visual safety: Generally, high-altitude projection lamps and light sources can easily shine directly into people's eyes, causing glare, visual discomfort, and even affecting driving safety; while low-altitude projection lamps have insufficient lighting range and can also cause serious glare problems.

[0005] (3) Light pollution diffusion: The light from a typical spotlight may not be effectively controlled, causing light to scatter into areas that do not require lighting, affecting the surrounding environment and causing light pollution. Utility Model Content

[0006] To address the aforementioned issues, this invention proposes an ultra-wide-angle projection device positioned below eye level. The device features reflective surfaces with optically calculated angles on the reflector, effectively projecting light evenly over a vast area. This provides excellent low-glare, wide-area illumination even at eye level, significantly reducing energy consumption and light pollution.

[0007] The main objective of this invention is to provide an ultra-wide-angle projection device that is below eye level, achieving wide-range illumination at the closest distance to the area requiring illumination and at an installation height below eye level.

[0008] The secondary objective of this invention is to provide an ultra-wide-angle projection device below eye level, which achieves near-glare-free illumination, allows the eyes to comfortably absorb effective light, enables clear identification of dynamic and static environments, and significantly reduces environmental disturbance caused by ineffective lighting.

[0009] Another objective of this invention is to provide an ultra-wide-angle projection device below eye level, which projects light fully onto the effective lighting area, meets the actual lighting needs with extremely low power consumption, and significantly reduces power waste caused by ineffective light.

[0010] The ultra-wide-angle projection device below eye level described in this utility model includes: a light source, a reflector, and a support component;

[0011] The light source is mounted on the reflector;

[0012] The reflector has an outer side and an inner side;

[0013] The support member allows the reflector to stand upright on a plane, and the support member is used to adjust the angle of the reflector;

[0014] The reflector is shaped like a "ㄈ".

[0015] The reflector has a mounting part inside for mounting a light source, which can produce vertical illumination light towards the ground;

[0016] The mounting part is provided with a two-sided reflective surface on each side. The two-sided reflective surface and the mounting part have a first reflection angle, so that the light generated by the light source is irradiated by the two-sided reflective surface to the two sides of the reflector to produce an extremely wide-angle two-sided light distribution.

[0017] Below the mounting part and the two side reflective surfaces, there is an inverted "U"-shaped edge reflective surface. The edge reflective surface and the mounting part form a second reflection angle, so that the light generated by the light source is distributed at an extremely wide angle to the ground by means of the edge reflective surface towards both ends of the reflector.

[0018] The mounting portion and the two side reflective surfaces turn upwards to form two symmetrical long-distance reflective surfaces. The long-distance reflective surface is composed of a first long-distance reflective area and a second long-distance reflective area, and is symmetrical about the mounting portion. The first long-distance reflective area and the second long-distance reflective area have a third reflection angle, so that the light generated by the light source is distributed forward through the long-distance reflective surface to produce a long-distance ultra-wide-angle light distribution that illuminates the ground.

[0019] The leading edge of the second far-distance reflective area of ​​the reflector forms a first near-distance reflective surface that controls the light pattern. The first near-distance reflective surface and the second far-distance reflective area form a fourth reflection angle, so that the light generated by the light source is directed forward by the first near-distance reflective surface to produce a forward near-distance light distribution that illuminates the ground. The forward near-distance light distribution is connected between the light distribution on both sides of the ultra-wide-angle and the illumination light.

[0020] The first far-distance reflective area of ​​the reflector is connected to two ends of a second near-distance reflective surface that controls the light pattern. The second near-distance reflective surface and the first far-distance reflective area form a fifth reflection angle, so that the light generated by the light source is distributed to both ends of the ground by the second near-distance reflective surface, and the near-distance light distribution on both sides is connected between the far-distance ultra-wide-angle light distribution and the illumination light.

[0021] By illuminating the reflective surfaces within the reflector with the light source, a wide-area ground lighting effect is achieved.

[0022] In an embodiment of this invention, the ultra-wide-angle light distribution generated by the long-distance reflection zone produces an illumination height lower than that of the reflector.

[0023] In an embodiment of this utility model, the adjustment angle of the reflector is between a depression angle of 10 degrees and an elevation angle of 10 degrees.

[0024] Furthermore, the long-distance ultra-wide-angle light distribution generated by the long-distance reflection zone has a beam angle of 80~89 degrees.

[0025] Furthermore, the extremely wide-angle light distribution generated by the two reflective surfaces results in a beam angle of 80~89 degrees.

[0026] In embodiments of this utility model, the ratio of the height of the support member to the distance of the lighting range is 1:14 or higher for forward projection and 1:12 or higher for a single side projection.

[0027] This utility model also discloses another technical solution: an ultra-wide-angle projection device below eye level, comprising a light source, a reflector, and a support member; the light source is mounted on the reflector; the reflector has an outer side and an inner side, the inner side being provided with a mounting portion for the light source, and the support member is mounted on the outer side of the reflector, making the reflector stand upright on a plane; the reflector does not have an edge reflective surface, and the reflector includes: a pair of side reflective surfaces forming a first reflection angle with the mounting portion to generate ultra-wide-angle side light distribution; a pair of far-distance reflective surfaces, respectively composed of a first far-distance reflective area and a second far-distance reflective area, forming a third reflection angle with the mounting portion; a first near-distance area reflective surface is provided at the leading edge of the second far-distance reflective area, forming a fourth reflection angle; and second near-distance area reflective surfaces are provided at both ends of the first far-distance reflective area, forming a fifth reflection angle; thereby generating ultra-wide-angle light distribution without the need for edge reflective surfaces, providing a near-glare-free lighting effect, and enhancing the lighting function directly below the support member.

[0028] Based on the above description, the beneficial effects of this utility model are as follows:

[0029] (1) Improve wide-angle lighting effect: Through multiple reflective surfaces inside the reflector, a wide range of lighting can be achieved at a very low installation height, reducing the number of lamps and the wattage.

[0030] (2) Reduce glare: The reflective surfaces of the first and second near-distance areas can modify the shape of the illumination light, making the illumination light from far to near distance uniform and soft.

[0031] (3) Reduce lighting fixtures and energy consumption: Since the lighting fixtures of this utility model can cover a large area with a single lamp, the spacing between the lamps can be appropriately increased, thereby reducing the number of lamps and energy consumption and improving the overall lighting efficiency.

[0032] (4) Reduce light pollution: The reflector of this utility model has a main light projection height-to-distance ratio of more than 1:14 for forward projection and more than 1:12 for single side projection. In other words, if the support height is 1 meter, the main light can illuminate an area of ​​more than 330 square meters, and the light will not scatter to areas that do not need lighting, thus reducing the problem of environmental light pollution and meeting the needs of ecological green lighting. Attached Figure Description

[0033] Figure 1 This is a perspective view of the ultra-wide-angle projection device of this utility model;

[0034] Figure 2 This is a schematic diagram of the structure of the reflector;

[0035] Figure 3 This is another structural schematic diagram of the reflector;

[0036] Figure 4 This is a schematic diagram of the light source reflection path;

[0037] Figure 5 This is another schematic diagram of the light source reflection path;

[0038] Figure 6 This is a schematic diagram showing the distribution of the projection range;

[0039] Figure 7 This is the photodistribution diagram of this utility model;

[0040] Figure 8 This is a schematic diagram of the projected beam angle;

[0041] Figure 9 This is another schematic diagram of the projected beam angle;

[0042] Figure 10 This is a schematic diagram of the reflector of this utility model without an edge reflective surface;

[0043] Figure 11 yes Figure 10 The light distribution diagram.

[0044] In the diagram, 1-light source; 2-reflector; 3-support component;

[0045] 2A - outer side, 2B - inner side, 21 - mounting part, 22 - two side reflective surfaces, 23 - edge reflective surface, 24 - far-range reflective surface, 25 - first near-range area reflective surface, 26 - second near-range area reflective surface;

[0046] 241 - First long-range reflection zone; 242 - Second long-range reflection zone;

[0047] First reflection angle θ1, second reflection angle θ2, third reflection angle θ3, fourth reflection angle θ4, fifth reflection angle θ5;

[0048] Illumination light A, ultra-wide-angle side light distribution K, ultra-wide-angle edge light distribution L, long-distance ultra-wide-angle light distribution B, front near-distance light distribution H, and side near-distance light distribution F. Detailed Implementation

[0049] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Example 1

[0050] like Figure 1-5 As shown, this utility model discloses an ultra-wide-angle projection device below eye level, comprising: a light source 1, a reflector 2, and a support member 3. The light source 1 is mounted on the reflector 2. The reflector 2 has an outer side 2A and an inner side 2B. The support member 3 is disposed on the outer side 2A of the reflector 2, and supports the reflector 2 to stand upright on a plane. The support member 3 is used to adjust the angle of the reflector 2, with the adjustment angle being between 10 degrees for both pitch and tilt.

[0051] like Figure 1-5 As shown, the reflector 2 has an outer shape resembling a "ㄈ".

[0052] like Figure 1-6 As shown, the inner side of the reflector 2 is provided with a mounting part 21 for mounting the light source 1, and the light source 1 can generate vertical illumination light A towards the ground.

[0053] like Figure 1-6 As shown, a two-sided reflective surface 22 is provided on each side of the mounting part 21. The two-sided reflective surface 22 and the mounting part 21 have a first reflection angle θ1, so that the light generated by the light source 1 is irradiated by the two two-sided reflective surfaces 22 to emit an extremely wide-angle two-sided light distribution K on both sides of the reflector 2.

[0054] like Figure 1-6As shown, an inverted "U"-shaped edge reflective surface 23 is provided below the mounting part 21 and the two side reflective surfaces 22. The edge reflective surface 23 and the mounting part 21 form a second reflection angle θ2, so that the light generated by the light source 1 illuminates the ground at the extreme wide-angle edge light distribution L through the edge reflective surface 23 towards both ends of the reflector 2.

[0055] like Figure 1-6 As shown, the mounting part 21 and the two side reflective surfaces 22 form two symmetrical long-distance reflective surfaces 24. The long-distance reflective surface 24 is composed of a first long-distance reflective area 241 and a second long-distance reflective area 242, and is symmetrical about the mounting part 21. The first long-distance reflective area 241 and the second long-distance reflective area 242 have a third reflection angle θ3, so that the light generated by the light source 1 illuminates the ground with a long-distance ultra-wide-angle light distribution B by means of the long-distance reflective surface 24.

[0056] like Figure 1-6 As shown, the leading edge of the second far-range reflective area 242 of the reflector 2 forms a first near-range reflective surface 25 to control the light pattern. The first near-range reflective surface 25 and the second far-range reflective area 242 form a fourth reflection angle θ4, so that the light generated by the light source 1 is directed forward by the first near-range reflective surface 25 to produce a forward near-range light distribution H illuminating the ground, and the forward near-range light distribution H is connected between the far-range ultra-wide-angle light distribution B and the illumination light A. It is worth mentioning that the first near-range reflective surface 25 forms a diamond pattern, thereby adjusting the light pattern. The diamond pattern can also be presented as fins or scales.

[0057] like Figure 1-6 As shown, the first far-range reflective area 241 of the reflector 2 is connected to two ends of a second near-range reflective surface 26 for controlling the light pattern. The second near-range reflective surface 26 and the first far-range reflective area 241 form a fifth reflection angle θ5, so that the light generated by the light source 1 is directed towards both ends by the second near-range reflective surface 26 to generate near-range light distribution F on both sides illuminating the ground, and the near-range light distribution F on both sides is connected between the ultra-wide-angle light distribution K and the illumination light A. Similarly, the second near-range reflective surface 26 forms a diamond pattern, thereby adjusting the light pattern. Similarly, the diamond pattern can also be presented as fins or scales.

[0058] like Figure 6As shown, the reflector of this utility model has a main light projection height-to-distance ratio of more than 1:14 for forward projection and more than 1:12 for single-sided projection. In other words, if the support height is 1 meter, the main light can illuminate an area of ​​more than 330 square meters, and the light will not scatter to areas that do not need lighting, thus reducing environmental light pollution and meeting the needs of ecological green lighting.

[0059] like Figure 1-6 As shown, by illuminating the reflective surfaces within the reflector 2 with the light source, a wide-area ground lighting effect is achieved. Figure 7 The simulated light distribution diagram of this utility model shows that it can produce an extremely wide-angle lighting effect of more than 170 degrees.

[0060] like Figure 8-9 As shown, the long-distance ultra-wide-angle light distribution B generated by the long-distance reflection zone 23 has an illumination height lower than the height set by the reflector 2, and the projection angle of the long-distance ultra-wide-angle light distribution is 80~89 degrees upward from the support member 3.

[0061] like Figure 8-9 As shown, the ultra-wide-angle light distribution K generated by the two reflective surfaces 22 has a projection angle of 80-89 degrees upward from the support member 3. Since the two reflective surfaces 22 are symmetrical structures, an ultra-wide-angle lighting effect of more than 170 degrees can be achieved.

[0062] This utility model has been tested in actual application and has the following obvious advantages compared with ordinary LED street lights: at an installation height of 1 meter, the beam width can reach more than 170 degrees, the light cutoff line is clear, there is no light pollution in front or behind, it has low glare and visual comfort, and significantly reduces the number of lamps and energy consumption; and there is no light spillage outside the lane and sidewalk range, which meets the requirements of low light pollution and low energy consumption, and meets the needs of ecological lighting and green lighting. Example 2

[0063] like Figure 10-11 As shown, in another embodiment of the present invention, when it is necessary to enhance the lighting around the support member directly below, the ultra-wide-angle edge light distribution L is not required, and the structure of the reflector 2 does not need to be provided with the edge reflective surface 23.

[0064] The above describes specific embodiments and technical principles of this utility model. Any changes made in accordance with the concept of this utility model that do not exceed the scope of the specification and drawings should be included within the protection scope of this utility model.

Claims

1. A wide-angle projection device below eye level, comprising a light source, a reflector, and a support member; the light source is mounted on the reflector; the reflector has an outer side and an inner side; the support member is mounted on the outer side of the reflector and, through the support member, makes the reflector stand upright on a plane, the support member being used to adjust the angle of the reflector; characterized in that: The reflector is shaped like a "ㄈ". The inner side of the reflector is provided with a mounting part for mounting the light source. The light source, after being reflected once by the reflector or directly shone by the light source, can produce a wide-angle horizontally spreading beam of light that shines forward and to both sides towards the ground. The mounting part is provided with a two-sided reflective surface on each side. The two-sided reflective surface and the mounting part have a first reflection angle, so that the light generated by the light source is irradiated by the two two-sided reflective surfaces to the two sides of the reflector to produce an extremely wide-angle two-sided light distribution. Below the mounting part and the two side reflective surfaces, there is an inverted "U"-shaped edge reflective surface. The edge reflective surface and the mounting part form a second reflection angle, so that the light generated by the light source illuminates the ground at an extremely wide-angle edge through the edge reflective surface towards both ends of the reflector. The mounting part and the two side reflective surfaces turn upward to form two symmetrical long-distance reflective surfaces. The long-distance reflective surface is composed of a first long-distance reflective area and a second long-distance reflective area, and is symmetrical about the mounting part. The first long-distance reflective area and the second long-distance reflective area have a third reflection angle, so that the light generated by the light source is distributed forward to illuminate the ground by the long-distance reflective surface. The leading edge of the second far-distance reflective area of ​​the reflector forms a first near-distance reflective surface that controls the light pattern. The first near-distance reflective surface and the second far-distance reflective area form a fourth reflection angle, so that the light generated by the light source is directed forward by the first near-distance reflective surface to produce a forward near-distance light distribution that illuminates the ground. The forward near-distance light distribution is connected between the light distribution on both sides of the ultra-wide-angle and the illumination light. The first far-distance reflective area of ​​the reflector is connected to two ends of a second near-distance reflective surface that controls the light pattern. The second near-distance reflective surface and the first far-distance reflective area form a fifth reflection angle, so that the light generated by the light source is distributed to both ends of the ground by the second near-distance reflective surface, and the near-distance light distribution on both sides is connected between the far-distance ultra-wide-angle light distribution and the illumination light.

2. The ultra-wide-angle projection device below eye level according to claim 1, characterized in that: The ultra-wide-angle light distribution produced by the long-distance reflection zone illuminates at a height lower than that of the reflector.

3. The ultra-wide-angle projection device below eye level according to claim 2, characterized in that: The beam angle is 80-89 degrees, which is produced by the long-distance reflection zone and the ultra-wide-angle beam distribution.

4. The ultra-wide-angle projection device below eye level according to claim 1, characterized in that: The beam is distributed on both sides of the ultra-wide-angle side by the two reflective surfaces, with a beam angle of 80~89 degrees.

5. The ultra-wide-angle projection device below eye level according to claim 1, characterized in that: The distance ratio between the support and the main illumination range is greater than 1:14 for forward projection and greater than 1:12 for a single side projection, which can illuminate an area of ​​more than 330 square meters.

6. The ultra-wide-angle projection device below eye level according to claim 1, characterized in that: The first near-field reflective surface forms a diamond pattern, fins, or scales to adjust the light pattern.

7. The ultra-wide-angle projection device below eye level according to claim 1, characterized in that: The second near-field reflective surface forms a diamond pattern, fins, or scales to adjust the light pattern.

8. A wide-angle projection device below eye level, comprising a light source, a reflector, and a support member; the light source is mounted on the reflector; the reflector has an outer side and an inner side, the inner side being provided with a mounting portion for the light source, and the support member is mounted on the outer side of the reflector, so that the reflector is upright on a plane; characterized in that: The reflector does not have an edge reflective surface. The reflector includes: a pair of side reflective surfaces that form a first reflection angle with the mounting portion to produce extremely wide-angle side light distribution; a pair of long-distance reflective surfaces, each composed of a first long-distance reflective area and a second long-distance reflective area, forming a third reflection angle with the mounting portion; a first short-distance reflective surface at the leading edge of the second long-distance reflective area to form a fourth reflection angle; and second short-distance reflective surfaces at both ends of the first long-distance reflective area to form a fifth reflection angle.

Images