Annular condensing lens structure and nuclear environment ceiling lamp

Abstract

The invention relates to the technical field of ceiling lamps, and discloses an annular condensing lens structure and a nuclear environment ceiling lamp, the annular condensing lens structure is applied to the nuclear environment ceiling lamp, the annular condensing lens structure comprises a connecting part and a lens body which are integrally formed, the lens body comprises a light inlet face and a light outlet face, and the light inlet face protrudes outwards to form an inner hole; a microstructure is arranged at the central part of the light inlet surface and is used for dodging the received light; a light condensing structure is arranged at the edge part of the light inlet surface and is used for condensing the received light to the central part; according to the nuclear environment ceiling lamp, the light emitting angle of the nuclear environment ceiling lamp is narrowed, so that the glare value is smaller, the center brightness is higher, and the nuclear environment ceiling lamp can be installed at a higher height under the same illumination requirement.

Description

Technical Field

[0001] This invention relates to the field of high-domed lighting technology, specifically to a ring-shaped focusing lens structure and a high-domed lighting system for nuclear environments. Background Technology

[0002] Ceiling lights are widely used due to their small footprint and ease of installation and removal. They are also widely used in special environments, such as nuclear reactor buildings and nuclear fuel facilities in nuclear power plants, where radiation is present. Ceiling lights used in nuclear power plants are often referred to as nuclear environment ceiling lights. Traditional nuclear environment ceiling lights typically use flat glass lenses, resulting in severe glare and uneven light distribution that can cause eye strain. Summary of the Invention

[0003] In view of this, the present invention provides a ring-shaped focusing lens structure and a high-domed light for nuclear environments to solve the problems of severe glare and uneven light spot distribution that easily produces a dazzling effect in existing high-domed lights for nuclear environments.

[0004] This invention provides a ring-shaped focusing lens structure and a high-domed lamp for nuclear environments, applicable to high-domed lamps for nuclear environments. The ring-shaped focusing lens includes an integrally formed connecting part and a lens body. The lens body includes a light-inlet surface and a light-outlet surface. The light-inlet surface protrudes outward to form an inner hole. A microstructure is provided in the central part of the light-inlet surface, which is used to homogenize the received light. A focusing structure is provided in the edge part of the light-inlet surface, which is used to focus the received light towards the central part.

[0005] In a first aspect, the present invention provides a ring-shaped focusing lens structure, which has at least the following beneficial effects:

[0006] By setting a microstructure in the center of the light-incoming surface of the lens body, the microstructure homogenizes the light emitted by the light source component to form a uniform beam, making the light energy distribution after passing through the lens body more uniform, achieving a uniform light spot and non-glaring effect, and also reducing the phenomenon of inconsistent light color. Furthermore, by setting a focusing structure at the edge of the light-incoming surface, the focusing structure focuses the light emitted by the light source component, causing the large-angle light emitted by the light source component to converge to the center, thereby narrowing the light emission angle of the high-ceiling lamp equipped with this ring focusing lens structure in the nuclear environment, resulting in a smaller glare value and a higher center brightness. This allows the high-ceiling lamp equipped with the ring focusing lens structure of this embodiment to be installed at a higher height under the same illuminance requirements.

[0007] In one alternative embodiment, the microstructure includes a plurality of polygonal portions arranged in an array.

[0008] In one alternative embodiment, the light-concentrating structure includes a plurality of continuously arranged micro-serrated grooves.

[0009] In one alternative embodiment, the lens body is arranged in a ring around the center of the connecting portion.

[0010] In one alternative embodiment, a plurality of lens bodies are provided, and the plurality of lens bodies are arranged in a concentric ring shape.

[0011] Secondly, the present invention also provides a high-mounted lamp for nuclear environments, including a heat sink, a PCB board, a light source assembly, and a lens. The lens adopts the annular focusing lens structure provided in the first aspect above. The PCB board is disposed on the heat sink, the light source assembly is disposed on one end of the PCB board away from the heat sink, the lens is detachably connected to the heat sink, the lens covers the PCB board inside the lens, and the light source assembly is accommodated in the inner hole.

[0012] Since the anti-counterfeiting product includes the annular condensing lens structure provided by the first party, it has the same beneficial effects as the annular condensing lens structure provided by the first party, and will not be described in detail here.

[0013] In one optional embodiment, the outer edge of the lens is provided with a plurality of first through holes along the circumference of the lens, the first through holes being used for the first screw to pass through, and the heat sink is provided with a first threaded hole corresponding to the position of the first through hole, the first threaded hole matching the first screw;

[0014] And / or, the middle part of the connecting part is provided with a mounting platform protruding towards the heat sink, the PCB board is provided with through holes for the mounting platform to be embedded; the mounting platform is provided with a plurality of second through holes at intervals along the circumference of the lens, the second through holes are provided for the second screw to pass through, the heat sink is provided with a second threaded hole corresponding to the position of the second through hole, the second threaded hole matches the second screw.

[0015] In one optional embodiment, a waterproof sealing ring is provided between the outer edge of the lens and the heat sink, and the waterproof sealing ring is arranged around the outer periphery of the PCB board.

[0016] In one alternative embodiment, the lens body is arranged in a ring around the center of the connecting portion, and the light source assembly includes a plurality of lamp beads spaced apart circumferentially, the plurality of lamp beads being accommodated in the ring-shaped inner hole.

[0017] In one alternative embodiment, the lens is configured as a polycarbonate component;

[0018] And / or, it also includes a first pressure ring, the first pressure ring being disposed at the end of the lens away from the heat sink, the first through hole being disposed through the first pressure ring, the first pressure ring being used to press and fix the edge of the lens;

[0019] And / or, it also includes a second pressure ring, which is disposed at one end of the connecting portion away from the mounting platform, and the second through hole is disposed through the second pressure ring, which is used to press and fix the middle part of the connecting portion. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a high-domed lamp for nuclear environments equipped with a ring-shaped focusing lens structure according to an embodiment of the present invention.

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0024] Figure 4 This is a partial structural diagram of an annular condensing lens structure assembled with a PCB board according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of a ring-shaped focusing lens structure according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of a ring-shaped focusing lens structure for light emitted by an LED bead passing through an embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of the microstructure in a ring-shaped condenser lens structure according to an embodiment of the present invention;

[0028] Figure 8 The image shows the light distribution effect obtained from the light distribution experiment using the annular condenser lens structure of this embodiment.

[0029] Figure 9 This is a diagram showing the light distribution effect obtained from a light distribution experiment using traditional flat glass.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100-Lens, 110-Connecting part, 120-Lens body, 121-Light-inlet surface, 122-Light-outlet surface, 123-Inner hole, 124-Microstructure, 1241-Polygonal part, 130-First through hole, 141-First screw, 142-Second screw, 150-Mounting platform, 151-Second through hole;

[0032] 200-Radiator;

[0033] 310 - PCB board, 320 - LED beads;

[0034] 400 - Waterproof sealing ring;

[0035] 500 - First pressure ring;

[0036] 600 - Second pressure ring. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0038] In the description of this embodiment, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this embodiment. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this embodiment, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment according to the specific circumstances.

[0040] The following is combined with Figures 1 to 8 The following describes embodiments of the present invention.

[0041] According to a first aspect of the present invention, an annular focusing lens structure is provided for use in a high-domed lamp in a nuclear environment. The annular focusing lens 100 includes an integrally formed connecting portion 110 and a lens body 120. The lens body 120 includes a light-inlet surface 121 and a light-outlet surface 122. The light-inlet surface 121 protrudes outward to form an inner hole 123. A microstructure 124 is provided at the center of the light-inlet surface 121 for uniformly distributing the received light. A focusing structure is provided at the edge of the light-inlet surface 121 for focusing the received light toward the center.

[0042] In this embodiment, the annular focusing lens structure has a microstructure 124 disposed at the center of the light-incoming surface 121 of the lens body 120. After receiving light emitted from the light source assembly, the microstructure 124 homogenizes the light to form a uniform beam, resulting in a more uniform light energy distribution after passing through the lens body 120. This achieves a uniform and non-glaring light spot effect, while also reducing inconsistencies in light color. Furthermore, a focusing structure is disposed at the edge of the light-incoming surface 121, such as... Figure 7 As shown, the focusing structure focuses the light emitted by the light source component, causing the large-angle light emitted by the light source component to converge to the center. This narrows the light emission angle of the high-ceiling lamp in the nuclear environment equipped with the annular focusing lens structure of this embodiment, resulting in a smaller glare value and a higher center brightness. This allows the high-ceiling lamp in the nuclear environment equipped with the annular focusing lens structure of this embodiment to be installed at a higher height under the same illuminance requirements, meeting the special usage requirements of installing high-ceiling lamps at higher locations in nuclear environments.

[0043] It should be noted that the inner hole 123 is used to accommodate the light source assembly, ensuring that the connection part 110 fits into the heat sink 200 of the nuclear environment high-ceiling lamp.

[0044] It should be noted that, because this embodiment can reduce the phenomenon of inconsistent light color, the high-domed lamp for nuclear environments equipped with the annular focusing lens structure of this embodiment can also be used as a dual-color temperature light source.

[0045] It should be noted that in this embodiment, the microstructure 124 is arranged in the center of the light-inlet surface 121, and the light-outlet surface 122 does not need to be equipped with a light-uniforming structure. This reduces the volume and weight of the annular focusing lens structure in this embodiment without significantly affecting the light emission effect.

[0046] It should be noted that most of the light emitted by the light-emitting component of the nuclear environment high-altitude lamp falls on the center portion of the light-receiving surface 121 of the corresponding lens body 120, ensuring a more uniform distribution of light energy after passing through the lens body 120, achieving a uniform and non-glaring light spot effect. Furthermore, the light that does not fall on the center portion of the light-receiving surface 121 of the lens body 120 falls primarily within the range of the focusing structure, causing the large-angle light emitted by the light source component to converge in the center. This ensures that the light-emitting angle of the nuclear environment high-altitude lamp equipped with the annular focusing lens structure of this embodiment is narrowed, resulting in a glare value of less than 10 at the key illumination location and an increase in central luminous intensity to between 32,000 cd and 40,000 cd. This allows the nuclear environment high-altitude lamp equipped with the annular focusing lens structure of this embodiment to be installed at a higher height while maintaining the same illuminance requirements.

[0047] It is understood that the key lighting location mentioned in the text refers to the location where the main light from the high-mounted lamp in the nuclear environment, which is equipped with the annular focusing lens structure of this embodiment, is irradiated.

[0048] It is understandable that the light-inlet surface 121 protrudes outward, meaning that the light-inlet surface 121 protrudes closer to the light-outlet surface 122.

[0049] like Figure 6 As shown, specifically, the microstructure 124 includes a plurality of polygonal portions 1241, which are arranged in an array. By arranging the plurality of polygonal portions 1241 in an array at the light-emitting end of the corresponding light source component, each polygonal portion 1241 can uniformly distribute the incident light beam illuminating its surface, making the light energy distribution emitted through the light-emitting surface 122 more uniform, thereby achieving a uniform and non-glaring light spot effect.

[0050] Specifically, the light-concentrating structure includes multiple continuously arranged micro-serrated grooves, each of which acts like a Fresnel lens. By utilizing the principles of light refraction and reflection, it changes the direction of light propagation, causing the large-angle light emitted by the light source component to be concentrated in the center. This narrows the light-emitting angle of the high-ceiling lamp in the nuclear environment equipped with the annular light-concentrating lens structure of this embodiment, resulting in a smaller glare value and a higher center brightness.

[0051] The light distribution experiment conducted using the annular condenser lens structure of this embodiment yielded the following results: Figure 8 The light distribution effect diagram shown, and the light distribution test results obtained using traditional flat glass, are as follows: Figure 9 The light distribution effect diagram shown; through analysis Figure 8 and Figure 9It can be seen that, compared with the light distribution of flat glass, the annular condenser lens structure of this embodiment narrows the emission angle, causing the average beam angle to decrease from 111.1° to 38.4°; and the annular condenser lens structure of this embodiment improves the center brightness, increasing the center light intensity from 11000cd to 36000cd. Under the same illuminance requirements, the high-domed lamp in the nuclear environment equipped with the annular condenser lens structure of this embodiment can be installed at a higher height and glare is reduced.

[0052] like Figure 4 and Figure 5 As shown, specifically, the lens body 120 is arranged in a ring around the center of the connecting part 110; a hemispherical lens body 120 is arranged at the position corresponding to each light source relative to the lens 100. During assembly, the projection of the light source along the optical axis must fall within the range of the hemispherical lens body 120 to achieve a uniform light effect, which places strict requirements on the installation position of the light source; in this embodiment, by arranging the lens body 120 in a ring, even if the light source is arranged at different circumferential positions along the circumference of the lens body 120 during assembly, it can be ensured that the projection of the light source along the optical axis falls within the range of the lens body 120 to achieve a uniform light effect. This makes the arrangement of the light source more flexible, and the number of light sources can be flexibly increased or decreased according to the lighting driving requirements without replacing the lens 100.

[0053] like Figure 1 and Figure 5 As shown, specifically, multiple lens bodies 120 are provided, preferably nine lens bodies 120, which are arranged in a concentric ring shape. The nine lens bodies 120 are arranged in a concentric ring shape, which includes nine circular tracks with the same center. Each lens body 120 is arranged along a corresponding circular track, so that the diameter of the arrangement track of the nine lens bodies 120 gradually increases from the inside to the outside along the radial direction of the lens body 120. This, combined with the focusing structure, focuses the light emitted by the light source component, causing the large-angle light emitted by the light source component to converge to the center. This effectively reduces the mutual mixing of light emitted by the light source components housed in adjacent lens bodies 120, resulting in lower glare and higher center brightness. This allows the high-ceiling lamp in the nuclear environment equipped with the ring-shaped focusing lens structure of this embodiment to be installed at a higher height while maintaining the same illuminance requirements.

[0054] Specifically, the radial spacing between any two adjacent lens bodies 120 is the same.

[0055] In specific applications, the number of lens bodies 120 can be reasonably increased or decreased according to the surface size of the annular condenser lens structure. For example, in other embodiments, the number of lens bodies 120 may be three, four, or five.

[0056] like Figures 1 to 7 As shown, according to a second aspect of the present invention, a high-mounted lamp for nuclear environments is also provided, including a heat sink 200, a PCB board 310, a light source assembly, and a lens 100. The lens 100 adopts the annular focusing lens structure provided in the first aspect of the present invention. The PCB board 310 is disposed on the heat sink 200, the light source assembly is disposed at one end of the PCB board 310 away from the heat sink 200, the lens 100 is detachably connected to the heat sink 200, the lens 100 covers the PCB board 310 inside the lens 100, and the light source assembly is accommodated in the inner hole 123.

[0057] The lens 100 of the nuclear environment high-ceiling lamp in this embodiment has a microstructure 124 set in the center of the light-inlet surface 121 of the lens body 120. After receiving the light emitted by the light source component, the microstructure 124 homogenizes the light to form a uniform beam, making the light energy distribution after passing through the lens body 120 more uniform, achieving a uniform light spot and non-glaring effect, while also reducing the phenomenon of inconsistent light color. Furthermore, a focusing structure is set at the edge of the light-inlet surface 121. The focusing structure focuses the light emitted by the light source component, causing the large-angle light emitted by the light source component to be concentrated in the center, thereby narrowing the light emission angle of the nuclear environment high-ceiling lamp in this embodiment, resulting in a smaller glare value and a higher center brightness. This allows the nuclear environment high-ceiling lamp in this embodiment to be installed at a higher height under the same illuminance requirements.

[0058] In this embodiment, the high-mounted light for nuclear environments detachably connects the lens 100 to the heat sink 200. Compared to connecting the lens 100 to the heat sink 200 by potting glue, this embodiment simplifies the installation process and improves production efficiency. At the same time, when the internal PCB board 310 or the light source assembly is damaged and needs to be replaced, the lens 100 can be removed from the heat sink 200 for easy maintenance.

[0059] It is understood that the light source assembly in this embodiment is housed in the inner hole 123, that is, the light source assembly protruding from the PCB board 310 towards the end face of the lens 100 will not interfere with the lens 100, ensuring that the lens 100 and the heat sink 200 are in contact.

[0060] like Figure 1 , Figure 4 and Figure 5As shown, specifically, the lens body 120 is arranged in a ring around the center of the connecting portion 110, and the light source assembly includes a plurality of lamp beads 320 arranged circumferentially, and the plurality of lamp beads 320 are accommodated in the ring-shaped inner hole 123. Compared to setting a semi-circular lens body 120 on the lens 100 corresponding to the position of each LED 320, during assembly, the projection of the LED 320 along the optical axis must fall within the range of the hemispherical lens body 120 to achieve a uniform light effect. This places strict requirements on the installation position of the LED 320, and the number of LEDs 320 and the lens body 120 must be kept the same; the number of LEDs 320 cannot be arbitrarily increased. In this embodiment, by arranging the lens body 120 in a ring shape, even if the LEDs 320 are arranged at different circumferential positions along the circumference of the lens body 120 during assembly, it can be ensured that the projection of the LEDs 320 along the optical axis falls within the range of the lens body 120 to achieve a uniform light effect. This makes the arrangement of the LEDs 320 more flexible, allowing the number of LEDs 320 to be flexibly increased or decreased according to the lighting driving requirements without replacing the lens 100. It also allows the same lens 100 to be used to adapt to light source assemblies with different numbers of LEDs 320. Meanwhile, the lens body 120 is arranged in a ring shape, meaning that the lens body 120 is connected along the circumference of the lens body 120. This allows the heat generated by multiple LEDs 320 of the same light source assembly to diffuse along the circumference of the lens body 120 in the inner hole 123, reducing the concentration of heat from the LEDs 320 at one point and ensuring uniform heat dissipation. This reduces heat loss from the LEDs 320, resulting in higher luminous efficiency and a longer lifespan for the LEDs 320.

[0061] It is understandable that the LED beads 320 of the same light source component are arranged at intervals along the same circular trajectory, and the spacing between two adjacent LED beads 320 can be the same or different, which gives the light source arrangement space great flexibility.

[0062] In specific applications, the 320 lamp bead is set as an LED lamp bead.

[0063] Specifically, there are nine lens bodies 120 arranged in a concentric ring shape; there are nine light source assemblies, each of which is housed in a corresponding inner hole 123 of one of the nine lens bodies 120.

[0064] Specifically, the lens 100 is detachably connected to the heat sink 200, and the PCB board 310 is detachably connected to the heat sink 200. This allows the original PCB board 310 to be easily replaced with other PCB boards 310 containing different numbers of LED beads 320 without replacing the lens 100. This enables different lighting requirements to be met by simply replacing the PCB board 310 with a different number of LED beads 320, thereby reducing purchase costs.

[0065] like Figure 1 and Figure 5 As shown, specifically, the outer edge of the lens 100 is provided with a plurality of first through holes 130 along the circumference of the lens 100. The first through holes 130 are used for the first screw 141 to pass through. The heat sink 200 is provided with a first threaded hole corresponding to the position of the first through hole 130. The first threaded hole matches the first screw 141. When assembling the heat sink 200 and the lens 100, it is only necessary to align the first threaded hole with the first through hole 130, and then pass the first screw 141 through the first through hole 130 and thread it into the first threaded hole. When disassembly is required, it is only necessary to remove the first screw 141. The entire disassembly and assembly process is simple to operate.

[0066] like Figure 1 , Figure 2 and Figure 5 As shown, specifically, the middle part of the connecting part 110 protrudes towards the heat sink 200 with a mounting platform 150, the PCB board 310 is provided with through holes for the mounting platform 150 to be inserted; the mounting platform 150 is provided with a plurality of second through holes 151 at intervals along the circumference of the lens 100, the second through holes 151 are used for the second screws 142 to pass through, the heat sink 200 is provided with second threaded holes corresponding to the positions of the second through holes 151, the second threaded holes are matched with the second screws 142. Considering that when the area of ​​lens 100 is large, if it is only locked by the first screw 141 located on the outer edge of lens 100, the middle part of lens 100 may sag due to its own weight, causing the position of the lens body 120 located near the middle of lens 100 to deviate from the corresponding light source component. This results in differences in the light uniformity and focusing effect of the lens body 120 compared to the lens body 120 in other positions. In this embodiment, the middle part of lens 100 is attached to heat sink 200 by the second screw 142, reducing the possibility that the middle part of lens 100 may sag due to its own weight. This ensures that the light uniformity and focusing effect of lens bodies 120 in various positions are basically the same, greatly reducing glare and increasing the uniformity of the high-ceiling light in the nuclear environment of this embodiment.

[0067] It should be noted that after the high-mounted light for nuclear environment is installed on the site of the nuclear power plant, the lens 100 is facing downwards. Therefore, the lens 100 will generate a downward force under its own weight.

[0068] Specifically, the PCB board 310 can be installed with the heatsink 200 by means of snap-fit ​​or threaded connection, making it easy to install and remove.

[0069] like Figure 1As shown, specifically, a waterproof sealing ring 400 is provided between the outer edge of the lens 100 and the heat sink 200, and the waterproof sealing ring 400 is arranged around the outer periphery of the PCB board 310; the waterproof sealing ring 400 seals and waterproofs the gap at the joint between the lens 100 and the heat sink 200, so that the high-domed lamp for nuclear environment in this embodiment achieves an IP66 protection level and meets the special requirements of nuclear environment.

[0070] like Figure 1 As shown, specifically, it also includes a first pressure ring 500, which is disposed at the end of the lens 100 away from the heat sink 200. A first through hole 130 is disposed through the first pressure ring 500. The first pressure ring 500 is used to press and fix the edge of the lens 100. After tightening the first screw 141, the first pressure ring 500 fits against the lower surface edge of the lens 100 away from the heat sink 200, pressing and fixing the lens 100. The first pressure ring 500 completely covers the edge of the lens 100. During the tightening of the first screw 141, firstly, the lens 100 is subjected to uniform force, which improves the stability of the lens 100 installation; secondly, the fit between the lens 100 and the heat sink 200 is more compact, the sealing effect is better, and water and other liquids are prevented from seeping into the nuclear environment high-rise light from the edge of the lens 100, thus extending the service life; finally, the screw head of the tightened first screw 141 presses against the first pressure ring 500 and does not directly contact the lens 100, thus avoiding damage to the lens 100.

[0071] like Figure 1 and Figure 2 As shown, specifically, it also includes a second pressure ring 600. The second pressure ring 600 is disposed at one end of the connecting part 110 away from the mounting platform 150. The second through hole 151 is disposed through the second pressure ring 600. The second pressure ring 600 is used to press and fix the middle part of the connecting part 110. After tightening the second screw 142, the middle part of the connecting part 110 away from the mounting platform 150 of the second pressure ring 600 is attached to the middle part, pressing and fixing the lens 100. Moreover, the projection of the second pressure ring 600 completely covers the mounting platform 150. During the process of tightening the second screw 142, the lens 100 can be subjected to uniform force, which improves the stability of the lens 100 installation.

[0072] Specifically, the lens 100 is made of polycarbonate; the lens 100 can withstand 50 kGy of radiation, meeting the lighting requirements in a nuclear environment.

[0073] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended invention.

Claims

1. A ring-shaped condenser lens structure applied to a nuclear environment high ceiling lamp, characterized in that, The annular spotlight lens (100) comprises an integrally formed connecting part (110) and a lens body (120), the lens body (120) comprises a light inlet face (121) and a light outlet face (122), the light inlet face (121) is outwardly convex to form an inner hole (123), a central part of the light inlet face (121) is provided with a microstructure (124) for homogenizing the received light, and an edge part of the light inlet face (121) is provided with a spotlight structure for spotlighting the received light rays to the central part.

2. A ring-shaped condenser lens structure according to claim 1, wherein The microstructure (124) comprises a plurality of polygonal parts (1241) arranged in an array.

3. The ring-shaped condenser lens structure according to claim 1, wherein The spotlight structure comprises a plurality of continuously arranged micro-sawtooth grooves.

4. The ring-shaped condenser lens structure according to claim 1, wherein The lens body (120) is annularly arranged around the center of the connecting part (110).

5. A ring-shaped condenser lens structure according to claim 4, wherein The lens body (120) is provided in a plurality of, and the plurality of lens bodies (120) are arranged in a concentric annular shape.

6. A nuclear environment high bay light characterized by, A heat sink (200), a PCB board (310), a light source assembly, and a lens (100) are provided, the lens (100) adopts the annular spotlight lens structure of any one of claims 1-5, the PCB board (310) is arranged on the heat sink (200), the light source assembly is arranged on one end of the PCB board (310) away from the heat sink (200), the lens (100) is detachably connected to the heat sink (200), the lens (100) covers the PCB board (310) inside the lens (100), and the light source assembly is accommodated in the inner hole (123).

7. A nuclear environment high bay light according to claim 6, wherein, A plurality of first through holes (130) are arranged on the outer edge of the lens (100) along the circumference of the lens (100), the first through holes (130) are used for the first screw (141) to pass through, the heat sink (200) is provided with a first threaded hole corresponding to the position of the first through hole (130), and the first threaded hole is matched with the first screw (141). And / or, a mounting table (150) is convexly arranged on the middle part of the connecting part (110) towards the heat sink (200), the PCB board (310) is provided with a through hole for embedding the mounting table (150), a plurality of second through holes (151) are arranged on the mounting table (150) along the circumference of the lens (100) at intervals, the second through holes (151) are used for the second screw (142) to pass through, the heat sink (200) is provided with a second threaded hole corresponding to the position of the second through hole (151), and the second threaded hole is matched with the second screw (142).

8. A nuclear environment high bay light according to claim 6 or 7, characterised in that, A waterproof sealing ring (400) is arranged between the outer edge of the lens (100) and the heat sink (200), and the waterproof sealing ring (400) is annularly arranged on the outer periphery of the PCB board (310).

9. A nuclear environment high bay light according to claim 6, wherein, The lens body (120) is annularly arranged around the center of the connecting part (110), and the light source assembly comprises a plurality of lamp beads (320) arranged at intervals in the circumferential direction, and the plurality of lamp beads (320) are accommodated in the annularly arranged inner hole (123).

10. A nuclear environment high bay light according to claim 7, wherein, The lens (100) is made of polycarbonate material; And / or, a first compression ring (500) is arranged at one end of the lens (100) away from the heat sink (200), the first through hole (130) is arranged through the first compression ring (500), and the first compression ring (500) is used for tightly fixing the edge of the lens (100). And / or, a second compression ring (600) is arranged at one end of the connecting part (110) away from the mounting table (150), the second through hole (151) is arranged through the second compression ring (600), and the second compression ring (600) is used for tightly fixing the middle part of the connecting part (110).

Images