Extremely wide-angle symmetrical projection device

Abstract

This utility model discloses an ultra-wide-angle symmetrical projection device, comprising a light source and a reflector with a "U"-shaped structure. The light source is installed in the center of the inner side of the reflector, and the light is guided by multiple sets of reflective surfaces to form four independent illumination areas. This device can simultaneously produce ultra-wide-angle illumination on both sides and long-distance light distribution effect in a narrow angle in front, achieving symmetrical lighting characteristics of ultra-wide-angle on the long side and focused light on the short side. It is suitable for applications requiring large-area and high-precision guided lighting.

Description

Technical Field

[0001] This utility model belongs to the field of lighting technology, specifically relating to an ultra-wide-angle symmetrical projection device. Background Technology

[0002] While common lighting equipment on the market, such as spotlights, has the advantage of concentrating light, it also has the following limitations in practical applications:

[0003] (1) Limited lighting range: Generally, spotlights can only concentrate light on a small area. When it is necessary to effectively illuminate a large space or multiple targets, multiple sets of lights need to be installed, which makes the space configuration complex and increases the construction cost.

[0004] (2) Low energy efficiency: Because multiple lamps need to be added to expand the lighting range, the overall power consumption increases, which is not ideal for areas that need to operate for a long time or have energy-saving requirements.

[0005] Therefore, there is still an urgent market demand for lighting solutions that combine high-efficiency wide-angle lighting with energy-saving features. Utility Model Content

[0006] In view of the common problems of insufficient illumination range and poor energy efficiency of existing lighting devices, the main purpose of this utility model is to provide an ultra-wide-angle symmetrical projection device. This device has the characteristics of ultra-wide-angle on the long side and narrow-angle on the short side, which can achieve uniform illumination over a large area while maintaining high-brightness concentrated lighting.

[0007] The present invention discloses an ultra-wide-angle symmetrical projection device, which has an ultra-wide-angle long side and a narrow-angle short side for focused illumination. It can be applied to scenarios with active sensing requirements, such as machine vision, automated guided vehicles (AGV, AMR), and monitoring systems, as well as lighting for billboards, wall washing, and traffic guidance signs. In addition, it can significantly improve energy projection density and reduce energy consumption in ultraviolet and infrared applications in air conditioning, medical and industrial equipment. Its optical projection method is similar in principle to the active beam illumination application of LiDAR.

[0008] The ultra-wide-angle symmetrical projection device of this utility model includes: a light source and a reflector; the light source is located at the center of the inner side of the reflector and can emit illumination light in the direction of the front of the device; the reflector has a "U" shaped structure, with an outer side and an inner side, and multiple sets of reflective surfaces are formed inside to guide the light emitted by the light source.

[0009] The light source has a pair of outer reflective surfaces on each side. When light is reflected by the outer reflective surfaces, a first illumination area and a second illumination area are generated on both sides of the device. The outer reflective surfaces and the light source have a first reflection angle, so that the light generated by the light source is emitted by the four outer reflective surfaces and illuminates both sides of the reflector in an extremely wide-angle outer light distribution.

[0010] The light source and the two pairs of outer reflective surfaces turn upwards to form two pairs of symmetrical, long-distance reflective surfaces, guiding the light to the front of the device to generate a third and a fourth irradiation area.

[0011] By illuminating the reflective surfaces of various parts inside the reflector with the aforementioned light source, an illumination effect with an extremely wide long-side and an extremely narrow short-side illumination area is achieved.

[0012] A second reflection angle is formed between the far-distance reflective surface below the light source and the light source.

[0013] The distant reflective surface above the light source forms a third reflection angle with the light source, which is used to achieve a specific long-distance lighting effect.

[0014] The light source has two outer reflective surfaces on either side, allowing light to be projected to both sides of the device, creating an extremely wide-angle illumination range (e.g., approximately 160-170 degrees). The first or second illumination area creates a single-sided illumination effect of 80-85 degrees or more. The first and second illumination areas together create an extremely wide-angle illumination effect with a combined long side of 160-170 degrees.

[0015] In addition, symmetrically arranged long-distance reflective surfaces are provided above the light source, which can reflect light to the front of the device to achieve forward long-distance illumination (e.g., about 5~25 degrees), while also having light-focusing characteristics. The upper and lower short sides of the light distribution angle of the third and fourth illumination areas are 5~25 degrees.

[0016] The beneficial effects of this utility model are as follows:

[0017] (1) Extremely wide-angle long-distance projection: By using multiple reflective surfaces inside the reflector, the light can be focused at a narrow angle while still having an extremely wide-angle projection effect, reducing the number of lamps used.

[0018] (2) Light pollution control: There is no light spillage outside the projection range, effectively controlling light pollution.

[0019] (3) Equipment application: It can significantly improve energy projection density, improve efficiency and reduce the number of lamps.

[0020] (4) Reduce lighting fixtures and energy consumption: Since the optics of this utility model can cover a very wide range with a single lamp, it replaces the effect that previously required multiple sets of lamps to achieve, thereby reducing the number of lamps and energy consumption and improving overall lighting efficiency.

[0021] (5) By combining the above-mentioned reflective surfaces, this utility model can achieve large-area illumination within a short distance, while also having a long-distance focusing effect, thus improving the lighting efficiency and application flexibility of a single lamp.

[0022] (6) The optical structure design of this utility model is suitable for application scenarios that require both long-distance and wide-range lighting and directional light source configuration, such as: indoor and outdoor billboards, wall washer lighting, traffic guidance signs, automatic navigation vehicles, machine vision, sensor light source, air conditioning ultraviolet sterilization, medical and industrial ultraviolet and infrared applications, or smart lighting fields, etc., and has good spatial adaptability and light distribution efficiency. Attached Figure Description

[0023] Figure 1 This is a perspective view of the ultra-wide-angle symmetrical projection device of this utility model;

[0024] Figure 2 This is a cross-sectional view of the present invention;

[0025] Figure 3 This is a reflection path diagram of the present invention;

[0026] Figure 4 This is another reflection path diagram of this utility model;

[0027] Figure 5 This is a schematic diagram of the light projection area of ​​this utility model;

[0028] Figure 6 This is the light distribution diagram of this utility model.

[0029] Markings in the diagram: 1-Light source, 2-Reflector;

[0030] 2A - outer side, 2B - inner side;

[0031] First reflection angle θ1, second reflection angle θ2, third reflection angle θ3;

[0032] Upper left outer reflective surface F, lower left outer reflective surface G, upper right outer reflective surface H, lower right outer reflective surface I, upper left far-distance reflective surface B, lower left far-distance reflective surface C, upper right far-distance reflective surface D, lower right far-distance reflective surface E;

[0033] First irradiation area FG, second irradiation area HI, third irradiation area BC, fourth irradiation area DE. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Example

[0035] like Figure 1-2 As shown, the ultra-wide-angle symmetrical projection device of this utility model consists of a light source 1 and a reflector 2. The light source 1 is installed at the center of the inner side of the reflector 2 and can emit illumination light in the direction of the front of the device. The reflector 2 has an outer side 2A and an inner side 2B.

[0036] like Figure 1 As shown, the reflector 2 has an exterior shape similar to a "ㄈ" shape, and multiple sets of reflective surfaces are formed inside to guide the light emitted by the light source.

[0037] In this embodiment, the positions of up, down, left, and right are described using... Figure 1 For reference only.

[0038] like Figure 1 , Figure 3 As shown, a pair of outer reflective surfaces are provided on both sides of the light source 1, namely the upper left outer reflective surface F, the lower left outer reflective surface G, the upper right outer reflective surface H, and the lower right outer reflective surface I; the above four outer reflective surfaces and the light source 1 each have a first reflection angle θ1, so that the light generated by the light source 1 is irradiated by the symmetrically arranged outer reflective surfaces towards one side of the reflector 2 to produce an extremely wide-angle outer light distribution of 80~85 degrees, and the first irradiation area FG and the second irradiation area HI are generated on both sides of the device.

[0039] like Figure 1 , Figure 2 , Figure 4 As shown, the light source 1 and the two pairs of outer reflective surfaces form two pairs of symmetrical long-distance reflective surfaces above it: the upper left long-distance reflective surface B, the lower left long-distance reflective surface C, the upper right long-distance reflective surface D, and the lower right long-distance reflective surface E. The long-distance reflective surfaces B and D above the light source form a third reflection angle θ3 with the light source, causing the light generated by the light source 1 to be distributed forward at a distance of 5-25 degrees through the four long-distance reflective surfaces, guiding the light to form the third illumination area BC and the fourth illumination area DE in front of the device. In addition, the long-distance reflective surfaces C and E below the light source form a second reflection angle θ2 with the light source 1.

[0040] like Figure 5As shown, by illuminating the reflective surfaces B, C, D, E, F, G, H, and I within the reflector 2 using the aforementioned light source, a wide-area illumination effect is achieved. The outer reflective surfaces F and G form a first illumination area FG, the outer reflective surfaces H and I form a second illumination area HI, the distant reflective surfaces B and C form a third illumination area BC, and the distant reflective surfaces D and E form a fourth illumination area DE. The third illumination area BC and the fourth illumination area DE provide long-distance illumination beams.

[0041] like Figure 6 The diagram shown is a simulated light distribution diagram of this utility model, demonstrating an illumination beam that can produce an extremely wide-angle illumination area on the long side and a narrow-angle focused illumination area on the short side. The long-distance light distribution produced by the third illumination area BC and the fourth illumination area DE can produce the effect of narrow-angle focused illumination on the short side.

[0042] The four outer reflective surfaces described above produce an extremely wide-angle outer light distribution. Because the four outer reflective surfaces have a symmetrical structure, this achieves... Figure 5 The combined illumination from both sides creates an ultra-wide-angle lighting effect of 160-170 degrees or more.

[0043] like Figure 5 and Figure 6 As shown, to further illustrate the lighting effect and spatial light distribution characteristics produced by this utility model, the irradiated area is divided into the following three types:

[0044] The first irradiation area FG is generated by the outer reflective surfaces F and G. It belongs to the two-sided projection irradiation area, with a single-sided light distribution angle of 80~85 degrees, corresponding to the left side of reflector 2.

[0045] The second illumination area HI extends from the outer reflective surface H and I structure and is the overall right-side ultra-wide-angle illumination area. The combination of the first illumination area FG and the second illumination area HI makes the overall light distribution cover 160~170 degrees, realizing symmetrical ultra-wide-angle illumination.

[0046] The third illumination area BC and the fourth illumination area DE are long-distance illumination areas in front of the device. The short side of the beam distribution angle is 5 to 25 degrees, and they have both focusing and long-distance guidance functions.

[0047] 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 symmetrical projection device, comprising a light source and a reflector; the light source is positioned at the center of the inner side of the reflector and emits illumination light in a forward direction; characterized in that: The reflector has a "ㄈ" shaped structure with an outer side and an inner side, and multiple sets of reflective surfaces are formed inside to guide the light emitted by the light source. A pair of outer reflective surfaces are provided on both sides of the light source. When light is reflected by the outer reflective surfaces, a first irradiation area and a second irradiation area can be generated on both sides of the device. The light source and the two pairs of outer reflective surfaces turn upwards to form two pairs of symmetrical, long-distance reflective surfaces, guiding the light to the front of the device to generate a third and a fourth irradiation area.

2. The ultra-wide-angle symmetrical projection device according to claim 1, characterized in that: The first or second irradiation area creates a unilateral illumination effect of 80 to 85 degrees or more.

3. The ultra-wide-angle symmetrical projection device according to claim 1, characterized in that: The first and second illumination areas together form an extremely wide-angle lighting effect with a combined long side of 160-170 degrees.

4. The ultra-wide-angle symmetrical projection device according to claim 1, characterized in that: The upper and lower shorter sides of the light distribution angle between the third and fourth irradiation areas are 5 to 25 degrees.

5. The ultra-wide-angle symmetrical projection device according to claim 1, characterized in that: The outer reflective surface forms a first reflection angle with the light source, and the far-distance reflective surface below the light source forms a second reflection angle with the light source.

6. The ultra-wide-angle symmetrical projection device according to claim 1, characterized in that: A third reflection angle is formed between the distant reflecting surface above the light source and the light source.

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