Rotatable angle-changing lens for industrial and mining lamp

Abstract

The application discloses a rotatable variable-angle industrial and mining lamp lens, which comprises a substrate, an LED chip and an optical lens, the optical lens is rotatably connected with the substrate, a plurality of annular light transmission bands are arranged on the optical lens, the annular light transmission bands comprise a first light transmission zone, a second light transmission zone and a first gradient light transmission zone, the first and second light transmission zones are each provided with N circumferentially-distributed ones, the first gradient light transmission zone is arranged between the first light transmission zone and the second light transmission zone, the beam angle of the first light transmission zone is smaller than that of the second light transmission zone, and the beam angle of the first gradient light transmission zone can be infinitely adjusted between the beam angles of the first and second light transmission zones. By arranging the plurality of light transmission zones with different angles and the gradient light transmission zone, the beam angle can be changed by rotating the lens or the substrate after installation, the same optical lens can meet the requirements of various beam angles, the purpose of infinitely changing the angle within a certain angle range can be achieved, the application can adapt to various lighting scenes, and is worth popularization and application.

Description

Technical Field

[0001] This invention relates to the field of optical lens manufacturing technology, and in particular to a rotatable variable-angle industrial and mining lamp lens suitable for large-angle, high-power lighting products. Background Technology

[0002] Industrial and mining lighting is closely related to industrial production. LED industrial and mining lamps are gradually gaining popularity due to their advantages such as directional light emission, low power consumption, good driving characteristics, fast response speed, high shock resistance, long service life, and green environmental protection. Therefore, LED industrial and mining lamps will become the best choice for energy-saving renovation of traditional large industrial plant lighting and are an inevitable trend.

[0003] Conventional industrial and mining lamps have various beam angles (i.e., light emission angles) such as 60 degrees, 85 degrees, 105 degrees, and 120 degrees. In order to meet the angle requirements of different lamps, lenses with different angles need to be designed. Different lighting needs require the installation of lenses with different angles. The lenses of conventional industrial and mining lamps are composed of a ring-shaped rotating convex lens. Different angle industrial and mining lamp lenses are designed according to the different curvatures of the convex lens to achieve the required angle.

[0004] Most LED industrial and mining lights on the market currently have a fixed beam angle. Some lights incorporate multiple-angle lenses within a single fixture, achieving different beam angles by illuminating light sources corresponding to different lens angles or through different installation methods. For example, a double-ring mosquito coil structure can be used, with one ring designed for a 60-degree beam angle and the other for a 120-degree beam angle. Several LED chips need to be placed within the cavities formed by the light-receiving surfaces of both rings. During installation, the 60-degree or 120-degree angle structure is selected based on different scenario requirements. In use, only the LED chips at the corresponding angle are illuminated, thus meeting the different beam angle requirements for different scenarios. Once this structure is installed and fixed, the beam angle remains unchanged. Regardless of the chosen installation angle, the lens structure and LED chips at the other angle are wasted.

[0005] Current solutions on the market require covering the entire lens substrate with LED chips, which wastes both the LED chips and the lens structure. The beam angle can only vary within a fixed preset range of 2 or 3 angles, and the beam angle cannot be changed after installation. Summary of the Invention

[0006] To address the issue that existing LED industrial and mining lamps, regardless of whether they are single-angle or multi-angle designs, have a fixed beam angle after installation and cannot be infinitely adjusted within a certain angle range, this invention provides a rotatable variable-angle industrial and mining lamp lens. This lens features multiple annular light-transmitting strips, with multiple light-transmitting areas at different angles on the same annular light-transmitting strip, and light-transmitting areas with gradually changing angles between these areas. The light-transmitting areas at corresponding angles on each adjacent annular light-transmitting strip are staggered. The optical lens and the substrate with the installed LED chip are rotatably connected. After installation, the beam angle can be changed by rotating the lens or the substrate, achieving the goal of satisfying multiple beam angle requirements with the same optical lens and infinitely adjusting the angle within a certain angle range.

[0007] To achieve the above objectives, the present invention provides a rotatable variable-angle industrial and mining lamp lens, comprising a substrate, LED chips, and an optical lens. The optical lens has multiple sequentially connected annular light-transmitting bands, each annular light-transmitting band including an incident light surface and an exit light surface. The incident light surface is concave to form a cavity, and the concave surface is an inner arc-shaped curved surface. The exit light surface has an outward convex structure corresponding to the concave structure of the incident light surface, and the outward convex surface is an outward arc-shaped curved surface. The upper plane of the substrate is attached to the lower bottom surface of the optical lens. Several LED chips are provided, evenly distributed on the upper plane of the substrate within the cavity formed by the incident light surfaces of the multiple annular light-transmitting bands.

[0008] The optical lens is rotatably connected to the substrate. The annular light-transmitting band includes a first light-transmitting area, a second light-transmitting area, and a first gradient light-transmitting area. Both the first and second light-transmitting areas are provided with N units, where N is a natural number greater than 0. The first and second light-transmitting areas are staggered, and their corresponding central angles are the same. The N first and N second light-transmitting areas are evenly distributed circumferentially. The first gradient light-transmitting area is located between the first and second light-transmitting areas, and its two ends are smoothly connected to the first and second light-transmitting areas, respectively. In the transition, the inner arc-shaped surfaces of the first light-transmitting area, the second light-transmitting area, and the first gradient light-transmitting area have the same shape and size, and the outer arc-shaped surfaces have the same width. The height of the outer arc-shaped surface of the first light-transmitting area is greater than the height of the outer arc-shaped surface of the second light-transmitting area. The beam angle of the first light-transmitting area is smaller than the beam angle of the second light-transmitting area. The height of the outer arc-shaped surface of the first gradient light-transmitting area increases linearly. The heights of the outer arc-shaped surfaces at both ends are the same as the heights of the outer arc-shaped surfaces of the first light-transmitting area and the second light-transmitting area, respectively. The beam angle of the first gradient light-transmitting area can be infinitely adjusted between the beam angle of the first light-transmitting area and the beam angle of the second light-transmitting area.

[0009] The corresponding first and second light-transmitting areas on each pair of adjacent annular light-transmitting strips are staggered.

[0010] During initial installation, the LED chips are only evenly distributed in the first or second light-transmitting area.

[0011] As a further improvement of this technology, there are two light-transmitting areas, one for the first light-transmitting area and one for the second light-transmitting area. The beam angle of the first light-transmitting area is set to 50-85°, and the beam angle of the second light-transmitting area is set to 105-120°. The beam angle of the first gradient light-transmitting area can be infinitely adjusted between (50-85)° and (105-120)°.

[0012] As a further improvement to this technology, the central angles corresponding to the first and second light-transmitting areas are set to 45-60°.

[0013] As a further improvement to this technology, the corresponding first and second light-transmitting areas on each pair of adjacent annular light-transmitting strips are staggered by 60° to 90°.

[0014] As a further improvement to this technology, there are two of each of the first and second light-transmitting areas. The beam angle of the first light-transmitting area is set to 60°, and the beam angle of the second light-transmitting area is set to 120°. The beam angle of the first gradient light-transmitting area can be infinitely adjusted between 60° and 120°. The central angles of the first and second light-transmitting areas are both set to 60°. The corresponding first and second light-transmitting areas on every two adjacent annular light-transmitting bands are staggered by 90°.

[0015] As a further improvement to this technology, there are three of each of the first and second light-transmitting areas. The beam angle of the first light-transmitting area is set to 60°, and the beam angle of the second light-transmitting area is set to 120°. The beam angle of the first gradient light-transmitting area can be infinitely adjusted between 60° and 120°. The central angles of the first and second light-transmitting areas are both set to 40°. The three first light-transmitting areas and the three second light-transmitting areas are evenly distributed in a circle, and the first and second light-transmitting areas are staggered. The corresponding first and second light-transmitting areas on every two adjacent annular light-transmitting bands are staggered by 40° to 60°.

[0016] As a further improvement to this technology, the optical lens and the substrate are rotatably connected. The annular light-transmitting band includes a first light-transmitting area, a second light-transmitting area, a third light-transmitting area, a first gradient light-transmitting area, a second gradient light-transmitting area, and a third gradient light-transmitting area. Each of the first, second, and third light-transmitting areas has one or two sections. The central angles corresponding to the first, second, and third light-transmitting areas are the same, and the first, second, and third light-transmitting areas are staggered. The third light-transmitting area is evenly distributed in a circle. The first gradient light-transmitting area is located between the first light-transmitting area and the second light-transmitting area. The two ends of the first gradient light-transmitting area smoothly transition to the first light-transmitting area and the second light-transmitting area, respectively. The second gradient light-transmitting area is located between the second light-transmitting area and the third light-transmitting area. The two ends of the second gradient light-transmitting area smoothly transition to the second light-transmitting area and the third light-transmitting area, respectively. The third gradient light-transmitting area is located between the first light-transmitting area and the third light-transmitting area. The two ends of the third gradient light-transmitting area smoothly transition to the first light-transmitting area and the third light-transmitting area, respectively.

[0017] The inner arc surfaces of the first, second, and third light-transmitting areas, the first gradient light-transmitting area, the second gradient light-transmitting area, and the third gradient light-transmitting area have the same shape and size, and the outer arc surfaces have the same width. The height of the outer arc surfaces of the first, second, and third light-transmitting areas gradually decreases, and the beam angle of the first, second, and third light-transmitting areas gradually increases.

[0018] The height of the outer arc surface of the first gradient light-transmitting zone increases linearly, and the height of the outer arc surface at both ends is consistent with the height of the outer arc surface of the first light-transmitting zone and the second light-transmitting zone, respectively. The beam angle of the first gradient light-transmitting zone can be infinitely adjusted between the beam angle of the first light-transmitting zone and the beam angle of the second light-transmitting zone.

[0019] The height of the outer arc surface of the second gradient light-transmitting zone increases linearly, and the height of the outer arc surface at both ends is consistent with the height of the outer arc surface of the second light-transmitting zone and the third light-transmitting zone, respectively. The beam angle of the second gradient light-transmitting zone can be infinitely adjusted between the beam angle of the second light-transmitting zone and the beam angle of the third light-transmitting zone.

[0020] The height of the outer arc surface of the third gradient light-transmitting zone increases linearly, and the height of the outer arc surface at both ends is consistent with the height of the outer arc surface of the first light-transmitting zone and the third light-transmitting zone, respectively. The beam angle of the third gradient light-transmitting zone can be infinitely adjusted between the beam angle of the first light-transmitting zone and the beam angle of the third light-transmitting zone.

[0021] The corresponding first, second, and third light-transmitting areas on each pair of adjacent annular light-transmitting strips are staggered.

[0022] During initial installation, the LED chips are evenly distributed only in the first, second, or third light-transmitting area.

[0023] Compared to existing technologies, the advantages of this invention are as follows: This invention designs multiple annular light-transmitting strips, sets multiple light-transmitting areas at different angles on the same annular light-transmitting strip, and sets light-transmitting areas with gradually changing angles between the light-transmitting areas at different angles. Furthermore, the light-transmitting areas at corresponding angles on each pair of adjacent annular light-transmitting strips are staggered. The optical lens and the substrate on which the LED chip is mounted are rotatably connected. After installation, the beam angle can be changed by rotating the lens or the substrate, achieving the goal of satisfying multiple beam angle requirements with the same optical lens and allowing for stepless angle changes within a certain angle range. This invention has a simple structure and is easy to operate; the LED chip only needs to be mounted on a light-transmitting area at one angle, greatly saving LED chip costs. This invention is applicable to various lighting needs at different times and in different scenarios, and is worthy of widespread application. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0025] Figure 2 This is a cross-sectional view of Embodiment 1 of the present invention;

[0026] Figure 3 This is a schematic diagram of the main view structure of the optical lens in Embodiment 1 of the present invention;

[0027] Figure 4 for Figure 3 Schematic diagram of the AA section structure;

[0028] Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure of the middle BB;

[0029] Figure 6 This is a schematic diagram of the substrate and LED chip mounting structure in Embodiment 1 of the present invention;

[0030] Figure 7 This is a schematic diagram of the optical lens main view structure and an LED chip installation diagram of Embodiment 2 of the present invention;

[0031] Figure 8 This is a schematic diagram of the optical lens structure in Embodiment 3 of the present invention;

[0032] Figure 9 This is a schematic cross-sectional view of the optical lens structure in Embodiment 3 of the present invention;

[0033] Figure 10 This is a schematic diagram of the optical lens main structure and the LED chip installation diagram of Embodiment 4 of the present invention.

[0034] Figure 11 This is a schematic diagram of the optical lens main structure and the LED chip installation diagram of Embodiment 5 of the present invention.

[0035] In the figure: 1. Substrate, 2. LED chip, 3. Optical lens, 31. Annular light-transmitting strip, 311. Light-incident surface, 312. Light-out surface, 313. Cavity, 314. First light-transmitting area, 315. First light-transmitting area, 316. First gradient light-transmitting area, 317. Third light-transmitting area, 318. Second gradient light-transmitting area, 319. Third gradient light-transmitting area. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] like Figures 1-6 As shown, Embodiment 1 of the present invention includes a substrate 1, an LED chip 2, and an optical lens 3. The optical lens 3 is provided with two sequentially connected annular light-transmitting strips 31. The annular light-transmitting strips 31 include an incident light surface 311 and an exit light surface 312. The incident light surface 311 is concave to form a cavity 313, and the concave surface is an inner arc-shaped curved surface. The exit light surface 312 is provided with an outer protruding structure corresponding to the concave structure of the incident light surface 311, and the outer protruding surface is an outer arc-shaped curved surface. The upper plane of the substrate 1 is attached to both sides of the incident light surface 311. Several LED chips 2 are provided and are evenly distributed on the upper plane of the substrate 1 and in the cavity 313 formed by the two annular light-transmitting strips 31 and the incident light surface 311. The optical lens 3 is rotatably connected to the substrate 1.

[0038] The annular light-transmitting band 31 includes a first light-transmitting area 314, a second light-transmitting area 315, and a first gradient light-transmitting area 316. Two of each of the first and second light-transmitting areas 314 and 315 are provided, and the first and second light-transmitting areas 314 and 315 are staggered. The central angle α corresponding to the first and second light-transmitting areas 314 and 315 is the same. The two first and two second light-transmitting areas are evenly distributed circumferentially. The first gradient light-transmitting area 316 is located between the first and second light-transmitting areas 314 and 315, respectively. The two ends of the first gradient light-transmitting area 316 smoothly transition from the first and second light-transmitting areas 314 and 315, respectively. The inner arc-shaped surfaces of the second light-transmitting area 315 and the first gradient light-transmitting area 316 have the same shape and size, and the outer arc-shaped surfaces have the same width. The height of the outer arc-shaped surface of the first light-transmitting area 314 is greater than the height of the outer arc-shaped surface of the second light-transmitting area 315. The beam angle of the first light-transmitting area 314 is smaller than the beam angle of the second light-transmitting area 315. The height of the outer arc-shaped surface of the first gradient light-transmitting area 316 increases linearly. The heights of the outer arc-shaped surfaces at both ends are the same as the heights of the outer arc-shaped surfaces of the first light-transmitting area 314 and the second light-transmitting area 315, respectively. The beam angle of the first gradient light-transmitting area 316 can be infinitely adjusted between the beam angle of the first light-transmitting area 314 and the beam angle of the second light-transmitting area 315.

[0039] The beam angle of the first light-transmitting area 314 is set to 60°, the beam angle of the second light-transmitting area 315 is set to 120°, and the beam angle of the first gradient light-transmitting area 316 can be infinitely adjusted between 60° and 120°.

[0040] Preferably, the central angle α corresponding to both the first light-transmitting area 314 and the second light-transmitting area 315 is set to 60°. The central angle corresponding to the first gradient light-transmitting area is 30°.

[0041] The corresponding first light-transmitting area 314 and second light-transmitting area 315 on the two annular light-transmitting strips 31 are set at 90° apart.

[0042] like Figure 6 As shown, during initial installation, the LED chips 2 are evenly distributed only in the first light-transmitting area 314. After installation, when a 60° beam angle illumination is required, simply light up the LED chips; when a 120° beam angle illumination is required, rotate the optical lens 3 90° relative to the substrate 1; when a beam angle illumination between 60° and 120° is required, rotate the optical lens 3 0° to 30° or 60° to 90° relative to the substrate 1.

[0043] Embodiment 2 of the present invention is basically the same as Embodiment 1, except that:

[0044] like Figure 7 As shown, the corresponding first light-transmitting area 314 and second light-transmitting area 315 on the two annular light-transmitting strips 31 are staggered by 60°.

[0045] Embodiment 3 of the present invention is basically the same as Embodiment 1, except that:

[0046] like Figure 8 , Figure 9 As shown, the optical lens 3 has 5 annular light-transmitting bands 31, and the corresponding first light-transmitting area 314 and second light-transmitting area 315 on each pair of adjacent annular light-transmitting bands 31 are staggered by 90°.

[0047] Embodiment 4 of the present invention is basically the same as Embodiment 1, except that:

[0048] like Figure 10 As shown in the left figure, the optical lens 3 has three annular light-transmitting bands 31. Each annular light-transmitting band 31 has three first light-transmitting areas 314 and three second light-transmitting areas 315. The central angles of the first light-transmitting areas 314 and the second light-transmitting areas 315 are all set at 40°. The three first light-transmitting areas 314 and the three second light-transmitting areas 315 are evenly distributed in a circle, and the first light-transmitting areas 314 and the second light-transmitting areas 315 are staggered. The corresponding first light-transmitting areas 314 and second light-transmitting areas 315 on every two adjacent annular light-transmitting bands 31 are staggered by 60°.

[0049] like Figure 10 As shown in the right figure, during initial installation, the LED chips 2 are only evenly distributed in the first light-transmitting area 314. After installation, when a 60° beam angle illumination is required, simply light up the LED chips; when a 120° beam angle illumination is required, rotate the optical lens 3 60° relative to the substrate 1; when a beam angle illumination between 60° and 120° is required, rotate the optical lens 3 0° to 20° or 40° to 60° relative to the substrate 1.

[0050] Embodiment 5 of the present invention is basically the same as Embodiment 1, except that:

[0051] like Figure 11As shown in the left figure, the optical lens 3 has three annular light-transmitting bands 31, including a first light-transmitting area 314, a second light-transmitting area 315, a third light-transmitting area 317, a first gradient light-transmitting area 316, a second gradient light-transmitting area 318, and a third gradient light-transmitting area 319. Each of the first, second, and third light-transmitting areas 314, 315, and 317 has one annular light-transmitting area. The central angle α corresponding to each of the first, second, and third light-transmitting areas 314, 315, and 317 is the same, all set to 80°. The first, second, and third light-transmitting areas 314, 315, and 317 are staggered and evenly distributed circumferentially. The first gradient light-transmitting area 316 is located at... Between the first light-transmitting area 314 and the second light-transmitting area 315, the two ends of the first gradient light-transmitting area 316 smoothly transition to the first light-transmitting area 314 and the second light-transmitting area 315, respectively. The second gradient light-transmitting area 318 is located between the second light-transmitting area 315 and the third light-transmitting area 317, with both ends smoothly transitioning to the second light-transmitting area 315 and the third light-transmitting area 317, respectively. The third gradient light-transmitting area 319 is located between the first light-transmitting area 314 and the third light-transmitting area 317, with both ends smoothly transitioning to the first light-transmitting area 314 and the third light-transmitting area 317, respectively. The central angles corresponding to the first gradient light-transmitting area 316, the second gradient light-transmitting area 318, and the third gradient light-transmitting area 319 are the same, all set to 40°.

[0052] The inner arc-shaped surfaces of the first light-transmitting area 314, the second light-transmitting area 315, the third light-transmitting area 317, the first gradient light-transmitting area 316, the second gradient light-transmitting area 318, and the third gradient light-transmitting area 319 have the same shape and size, and the outer arc-shaped surfaces have the same width. The height of the outer arc-shaped surfaces of the first light-transmitting area 314, the second light-transmitting area 315, and the third light-transmitting area 317 gradually decreases, and the beam angles of the first light-transmitting area 314, the second light-transmitting area 315, and the third light-transmitting area 317 gradually increase. The beam angle of the first light-transmitting area 314 is set to 60°, the beam angle of the second light-transmitting area 315 is set to 85°, and the beam angle of the third light-transmitting area 315 is set to 120°.

[0053] The height of the outer arc surface of the first gradient light-transmitting area 316 increases linearly, and the height of the outer arc surface at both ends is consistent with the height of the outer arc surface of the first light-transmitting area 314 and the second light-transmitting area 315, respectively. The beam angle of the first gradient light-transmitting area 316 can be infinitely adjusted between the beam angle of the first light-transmitting area 314 and the beam angle of the second light-transmitting area 315.

[0054] The height of the outer arc surface of the second gradient light-transmitting area 318 increases linearly, and the height of the outer arc surface at both ends is consistent with the height of the outer arc surface of the second light-transmitting area 315 and the third light-transmitting area 317, respectively. The beam angle of the second gradient light-transmitting area 318 can be infinitely adjusted between the beam angle of the second light-transmitting area 315 and the beam angle of the third light-transmitting area 317.

[0055] The height of the outer arc surface of the third gradient light-transmitting area 319 increases linearly, and the height of the outer arc surface at both ends is consistent with the height of the outer arc surface of the first light-transmitting area 314 and the third light-transmitting area 317, respectively. The beam angle of the third gradient light-transmitting area 319 can be infinitely adjusted between the beam angle of the first light-transmitting area 314 and the beam angle of the third light-transmitting area 317.

[0056] The corresponding first light-transmitting area 314, second light-transmitting area 315, and third light-transmitting area 317 on each pair of adjacent annular light-transmitting strips 31 are staggered by 120°.

[0057] like Figure 11 As shown in the right figure, during initial installation, the LED chips 2 are only evenly distributed in the first light-transmitting area 314. After installation, when a 60° beam angle illumination is required, simply light up the LED chips; when an 85° beam angle illumination is required, rotate the optical lens 3 counterclockwise by 120° relative to the substrate 1; when a 120° beam angle illumination is required, rotate the optical lens 3 clockwise by 120° relative to the substrate 1; when a beam angle illumination between 60° and 85° is required, rotate the optical lens 3 counterclockwise by 0° to 40° or 80° to 120° relative to the substrate 1; when a beam angle illumination between 60° and 120° is required, rotate the optical lens 3 clockwise by 0° to 40° or 80° to 120° relative to the substrate 1; when a beam angle illumination between 85° and 120° is required, rotate the optical lens 3 clockwise or counterclockwise by 120° to 160° or 200° to 240° relative to the substrate 1.

[0058] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and substitutions without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A rotatable, variable-angle industrial and mining lamp lens, comprising a substrate, LED chips, and an optical lens, wherein the optical lens has multiple sequentially connected annular light-transmitting bands, each annular light-transmitting band including an incident light surface and an exit light surface; the incident light surface is concave to form a cavity, the concave surface being an inner arc-shaped curved surface; the exit light surface has an outwardly convex structure corresponding to the concave structure of the incident light surface, the outwardly convex surface being an outwardly arc-shaped curved surface; the upper plane of the substrate is attached to the lower bottom surface of the optical lens; several LED chips are provided, evenly distributed on the upper plane of the substrate within the cavity formed by the multiple annular light-transmitting bands and the incident light surface, characterized in that: The optical lens is rotatably connected to the substrate. The annular light-transmitting band includes a first light-transmitting area, a second light-transmitting area, and a first gradient light-transmitting area. Both the first and second light-transmitting areas are provided with N units, where N is a natural number greater than 0. The first and second light-transmitting areas are staggered, and their corresponding central angles are the same. The N first and N second light-transmitting areas are evenly distributed circumferentially. The first gradient light-transmitting area is located between the first and second light-transmitting areas, and its two ends are smoothly connected to the first and second light-transmitting areas, respectively. In the transition, the inner arc-shaped surfaces of the first light-transmitting area, the second light-transmitting area, and the first gradient light-transmitting area have the same shape and size, and the outer arc-shaped surfaces have the same width. The height of the outer arc-shaped surface of the first light-transmitting area is greater than the height of the outer arc-shaped surface of the second light-transmitting area. The beam angle of the first light-transmitting area is smaller than the beam angle of the second light-transmitting area. The height of the outer arc-shaped surface of the first gradient light-transmitting area increases linearly. The heights of the outer arc-shaped surfaces at both ends are the same as the heights of the outer arc-shaped surfaces of the first light-transmitting area and the second light-transmitting area, respectively. The beam angle of the first gradient light-transmitting area can be infinitely adjusted between the beam angle of the first light-transmitting area and the beam angle of the second light-transmitting area. The corresponding first and second light-transmitting areas on each pair of adjacent annular light-transmitting strips are staggered. During initial installation, the LED chips are only evenly distributed in the first or second light-transmitting area.

2. The rotatable variable angle industrial and mining lamp lens according to claim 1, characterized in that: The first light-transmitting area and the second light-transmitting area are each provided in two parts. The beam angle of the first light-transmitting area is set to 50° to 85°, and the beam angle of the second light-transmitting area is set to 105° to 120°. The beam angle of the first gradient light-transmitting area is infinitely adjustable between the beam angle of the first light-transmitting area and the beam angle of the second light-transmitting area.

3. The rotatable variable angle industrial and mining lamp lens according to claim 2, characterized in that: The central angles corresponding to the first and second light-transmitting areas are set to 45° to 60°.

4. A rotatable variable-angle industrial and mining lamp lens according to claim 2, characterized in that: The corresponding first and second light-transmitting areas on each pair of adjacent annular light-transmitting strips are staggered by 60° to 90°.

5. A rotatable variable-angle industrial and mining lamp lens according to claim 1, characterized in that: There are two of each of the first and second light-transmitting areas. The beam angle of the first light-transmitting area is set to 60° and the beam angle of the second light-transmitting area is set to 120°. The beam angle of the first gradient light-transmitting area can be infinitely adjusted between 60° and 120°. The central angles of the first and second light-transmitting areas are both set to 60°. The corresponding first and second light-transmitting areas on every two adjacent annular light-transmitting bands are staggered by 90°.

6. A rotatable variable-angle industrial and mining lamp lens according to claim 1, characterized in that: There are three first light-transmitting areas and three second light-transmitting areas. The beam angle of the first light-transmitting area is set to 60° and the beam angle of the second light-transmitting area is set to 120°. The beam angle of the first gradient light-transmitting area can be infinitely adjusted between 60° and 120°. The central angles of the first and second light-transmitting areas are both set to 40°. The three first light-transmitting areas and the three second light-transmitting areas are evenly distributed in a circle, and the first and second light-transmitting areas are staggered. The corresponding first and second light-transmitting areas on every two adjacent annular light-transmitting bands are staggered by 40° to 60°.

7. A rotatable, variable-angle industrial and mining lamp lens, comprising a substrate, LED chips, and an optical lens, wherein the optical lens has multiple sequentially connected annular light-transmitting bands, each annular light-transmitting band including an incident light surface and an exit light surface; the incident light surface is concave to form a cavity, the concave surface being an inner arc-shaped curved surface; the exit light surface has an outwardly convex structure corresponding to the concave structure of the incident light surface, the outwardly convex surface being an outwardly arc-shaped curved surface; the upper plane of the substrate is attached to the lower bottom surface of the optical lens; several LED chips are provided, evenly distributed on the upper plane of the substrate within the cavity formed by the multiple annular light-transmitting bands and the incident light surface, characterized in that: The optical lens is rotatably connected to the substrate. The annular light-transmitting band includes a first light-transmitting area, a second light-transmitting area, a third light-transmitting area, a first gradient light-transmitting area, a second gradient light-transmitting area, and a third gradient light-transmitting area. Each of the first, second, and third light-transmitting areas has one or two sections. The central angles corresponding to the first, second, and third light-transmitting areas are the same, and the first, second, and third light-transmitting areas are staggered. The light-transmitting areas are evenly distributed around the circumference. The first gradient light-transmitting area is located between the first light-transmitting area and the second light-transmitting area, and the two ends of the first gradient light-transmitting area smoothly transition to the first light-transmitting area and the second light-transmitting area, respectively. The second gradient light-transmitting area is located between the second light-transmitting area and the third light-transmitting area, and the two ends of the second gradient light-transmitting area smoothly transition to the first light-transmitting area and the third light-transmitting area, respectively. The inner arc surfaces of the first, second, and third light-transmitting areas, the first gradient light-transmitting area, the second gradient light-transmitting area, and the third gradient light-transmitting area have the same shape and size, and the outer arc surfaces have the same width. The height of the outer arc surfaces of the first, second, and third light-transmitting areas gradually decreases, and the beam angle of the first, second, and third light-transmitting areas gradually increases. The height of the outer arc surface of the first gradient light-transmitting zone increases linearly, and the height of the outer arc surface at both ends is consistent with the height of the outer arc surface of the first light-transmitting zone and the second light-transmitting zone, respectively. The beam angle of the first gradient light-transmitting zone can be infinitely adjusted between the beam angle of the first light-transmitting zone and the beam angle of the second light-transmitting zone. The height of the outer arc surface of the second gradient light-transmitting zone increases linearly, and the height of the outer arc surface at both ends is consistent with the height of the outer arc surface of the second light-transmitting zone and the third light-transmitting zone, respectively. The beam angle of the second gradient light-transmitting zone can be infinitely adjusted between the beam angle of the second light-transmitting zone and the beam angle of the third light-transmitting zone. The height of the outer arc surface of the third gradient light-transmitting zone increases linearly, and the height of the outer arc surface at both ends is consistent with the height of the outer arc surface of the first light-transmitting zone and the third light-transmitting zone, respectively. The beam angle of the third gradient light-transmitting zone can be infinitely adjusted between the beam angle of the first light-transmitting zone and the beam angle of the third light-transmitting zone. The corresponding first, second, and third light-transmitting areas on each pair of adjacent annular light-transmitting strips are staggered. During initial installation, the LED chips are evenly distributed only in the first, second, or third light-transmitting area.

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