Light protection cover and optical system

Abstract

The utility model relates to a light protection cover and an optical system, the light protection cover comprises a shell, a temperature control assembly and a noise reduction assembly, the shell comprises a wall part, an accommodating cavity enclosed by the wall part and an opening communicated with the accommodating cavity, the shell covers an external support body through the opening, and a light processing assembly is accommodated through the accommodating cavity. The wall part is provided with a light inlet window and a light outlet window which are communicated with the accommodating cavity and are used for light to pass through; the temperature control assembly is arranged in the shell and used for adjusting the temperature of the environment where the optical processing assembly in the containing cavity is located; and the noise reduction assembly is arranged on the wall part and is used for blocking sound wave crosstalk inside and outside the accommodating cavity so as to carry out noise reduction on the working environment of the optical processing assembly. The embodiment of the utility model provides a light protection cover and an optical system, which can improve the multifunctionality of the light protection cover, reduce the adverse effect of temperature and noise on a light path, and improve the safety and reliability of the optical system.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductors, in particular to a light protection cover and an optical system. Background Art

[0002] In the technical field of semiconductors, in order to prevent the optical path from being affected by environmental changes, optical path covers are often used to isolate optical devices and part of the light from the external environment, so as to have functions such as dust protection, reducing the impact of the external environment on the optical path.

[0003] However, the optical path covers provided in the current field are usually only single-layer metal shell structures, which can only form a simple isolation protection for the optical path and do not have better protection functions. Therefore, there is an urgent need for a new type of light protection cover. Summary of the Invention

[0004] Embodiments of the utility model provide a light protection cover and an optical system, which can improve the versatility of the light protection cover, reduce the adverse effects of temperature and noise on the optical path, and improve the safety and reliability of the optical system.

[0005] On the one hand, according to an embodiment of the utility model, a light protection cover is proposed, which includes a housing, a temperature control component and a noise reduction component. The housing includes a wall portion, a receiving cavity surrounded by the wall portion, and an opening communicating with the receiving cavity. The housing covers an external support body through the opening, and a light processing component is received in the receiving cavity through the receiving cavity. The wall portion is provided with a light inlet window and a light outlet window communicating with the receiving cavity for light to pass through; the temperature control component is disposed in the housing and is used to adjust the environmental temperature of the light processing component located inside the receiving cavity; the noise reduction component is disposed on the wall portion, and the noise reduction component is used to block the acoustic crosstalk between the inside and the outside of the receiving cavity to reduce the noise of the working environment of the light processing component.

[0006] According to one aspect of the embodiment of the utility model, the temperature control component includes a heat insulation layer, and the heat insulation layer is attached to the surface of the wall portion; the heat insulation layer includes a heat conduction layer and a reflective heat insulation layer. The heat conduction layer covers the entire inner surface of the wall portion facing the receiving cavity, and the reflective heat insulation layer covers the entire outer surface of the wall portion facing away from the receiving cavity.

[0007] According to one aspect of the embodiment of the utility model, the temperature control component further includes a heat exchange plate. The heat exchange plate includes a hollow heat exchange tube, an inlet and an outlet communicating with the heat exchange tube. The heat exchange tube is disposed in the receiving cavity, and the inlet and the outlet extend out of the housing. The heat exchange plate is used to introduce a heat exchange medium into the receiving cavity to adjust the environmental temperature of the light processing component.

[0008] According to one aspect of the embodiments of the present utility model, the noise reduction component includes a sound insulation layer and a sound absorption layer. The sound insulation layer covers the inner surface of the wall portion facing the accommodation cavity, and the sound insulation layer is used to block the acoustic crosstalk between the inside and outside of the accommodation cavity. The sound absorption layer is attached to one surface of the sound insulation layer facing the accommodation cavity.

[0009] According to one aspect of the embodiments of the present utility model, the light protection cover further includes a ventilation component. The ventilation component is disposed through the wall portion and communicates with the accommodation cavity, and the ventilation component is used to replace the working environment medium of the light processing component inside the accommodation cavity.

[0010] An optical system is proposed according to the embodiments of the present utility model, which includes a carrier, a light emitting component, a light processing component, and the light protection cover as described above. The light emitting component is disposed on the carrier; the light processing component is disposed on the carrier and is spaced apart from the light emitting component; the light protection cover is on the carrier and covers the light processing component for controlling temperature and reducing noise in the working environment of the light processing component. The light emitted by the light emitting component enters the accommodation cavity through the light inlet window and is emitted through the light outlet window after passing through the light processing component.

[0011] According to one aspect of the embodiments of the present utility model, the optical system includes an air guiding member. The air guiding member is disposed on the wall portion of the housing. The air guiding member has an air inlet and an air outlet, and the air guiding member blows air toward the light inlet window and / or the light outlet window through the air outlet.

[0012] According to one aspect of the embodiments of the present utility model, at least a part of the air guiding member extends along the surface of the wall portion, so that the air outlet is attached to the surface of the wall portion for blowing toward the light inlet window and / or the light outlet window.

[0013] According to one aspect of the embodiments of the present utility model, the air guiding member includes an air guiding pipe extending in a first direction and an air jet head extending in a second direction that intersect and communicate with each other. The air guiding member is connected to the wall portion through the air guiding pipe. At least a part of the air jet head is attached to the wall surface of the housing. The air inlet is disposed at the free end of the air guiding pipe, and the air outlet is disposed at the free end of the air jet head. The first direction and the second direction intersect.

[0014] According to one aspect of the embodiments of the present invention, the cross-sectional area of the connection port of the air jet head and the air duct in the second direction is larger than that of the air outlet at the other end; the air outlet includes a slit-shaped opening, the air outlet extends in the third direction and the length dimension in the third direction is larger than the length dimension in the first direction, and the length dimension of the air outlet in the third direction at least exceeds the length dimension of the light incident window and / or the light exit window in the third direction, so that the blown air flow covers the light incident window and / or the light exit window, and the first direction, the second direction and the third direction intersect pairwise.

[0015] The embodiments of the present invention provide a light protection cover and an optical system. By providing a temperature control component and a noise reduction component on the wall of the housing, the temperature in the accommodation cavity of the housing is made to meet the predetermined requirements by using the temperature control component, preventing interference with the light processing component due to the temperature difference formed with the external environment. At the same time, the noise reduction component is used to block the noise inside and outside the accommodation cavity, preventing the noise from being conducted inside the accommodation cavity and causing adverse effects on the light processing component. The introduction and export of external light are realized through the light incident window and the light exit window provided on the light protection cover, forming a stable and reliable light processing process in the accommodation cavity, reducing the influence of temperature and noise on the light path propagation, improving the safety and stability of the overall structure for light path processing, providing a reliable guarantee for the continuous light processing process, and having better light processing capabilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The features, advantages and technical effects of the exemplary embodiments of the present invention will be described below with reference to the drawings.

[0017] Figure 1 is a schematic structural diagram of an optical system according to an embodiment of the present invention;

[0018] Figure 2 is a schematic structural diagram of an optical system according to an embodiment of the present invention;

[0019] Figure 3 is a schematic structural diagram of a light protection cover according to an embodiment of the present invention;

[0020] Figure 4 is a schematic position diagram of an air guiding member according to an embodiment of the present invention;

[0021] Figure 5 is a schematic structural diagram of an air guiding member according to an embodiment of the present invention;

[0022] Figure 6 is a schematic structural diagram of an optical system according to an embodiment of the present invention;

[0023] Figure 7 is a schematic structural diagram of a liquid cooling component according to an embodiment of the present invention;

[0024] Figure 8 It is a schematic internal structure diagram of the liquid cooling component according to an embodiment of the present utility model.

[0025] Reference numerals:

[0026] 100 - light protection cover; 200 - light processing component; 400 - light emitting component; 500 - carrier;

[0027] 10 - housing; 11 - wall portion; 12 - accommodation cavity; 20 - heat insulation layer; 21 - heat exchange plate; 22 - heat exchange tube; 30 - noise reduction component; 31 - sound insulation layer; 32 - sound absorption layer;

[0028] 1 - light inlet window; 2 - light outlet window; 3 - inlet; 4 - outlet; 5 - ventilation component;

[0029] 50 - air guiding member; 51 - air guiding tube; 52 - jet head;

[0030] X - first direction; Z - second direction; Y - third direction.

[0031] In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to actual scale. Detailed implementation manners

[0032] The features and exemplary embodiments of various aspects of the present utility model will be described in detail below. In the following detailed description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, it will be apparent to those skilled in the art that the present utility model may be practiced without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present utility model by showing examples of the present utility model. In the drawings and the following description, at least some of the well - known structures and technologies are not shown in order to avoid unnecessarily obscuring the present utility model; and, for clarity, the dimensions of some structures may be exaggerated. In addition, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0033] The orientation terms appearing in the following description are all the directions shown in the drawings, and do not limit the specific structures of the light protection cover and the optical system of the present utility model. In the description of the present utility model, it should also be noted that, unless otherwise clearly defined and limited, the terms "mounted", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected or indirectly connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] To better understand the present utility model, the following will combine Figures 1 to 8 to describe in detail the light protection cover and the optical system of the embodiments of the present utility model.

[0035] Please refer to Figures 1 to 3 , according to an embodiment of the present utility model, a light protection cover 100 is provided, which includes a housing 10, a temperature control component, and a noise reduction component 30. The housing 10 includes a wall portion 11, a receiving cavity 12 surrounded by the wall portion 11, and an opening communicating with the receiving cavity 12. The housing 10 covers an external support body through the opening, and the light processing component 200 is received in the receiving cavity 12. The wall portion 11 is provided with a light inlet window 1 and a light outlet window 2 communicating with the receiving cavity 12 for light to pass through; the temperature control component is disposed on the housing 10 and is used to adjust the ambient temperature where the light processing component 200 is located inside the receiving cavity 12; the noise reduction component 30 is disposed on the wall portion 11, and the noise reduction component 30 is used to block the acoustic crosstalk between the inside and the outside of the receiving cavity 12 to reduce the noise in the working environment of the light processing component 200.

[0036] In this embodiment, it is mainly considered that during the process of using the light processing component 200 to process light, the overall structure is exposed to the external environment, and adverse factors such as impurities, temperature, and noise in the external environment will have an adverse impact on the conduction of light. Therefore, the light protection cover 100 provided in this embodiment can effectively solve the above problems.

[0037] The base body of the light protection cover 100 therein is the housing 10. Optionally, the wall portion 11 of the housing 10 can be made of a metal material. As shown in the figure, the housing 10 can be set as a rectangular structure. The present application does not make special limitations on the specific material and shape of the housing 10, and can be determined according to the actual protection requirements, as long as it can effectively isolate the light processing component 200.

[0038] By covering the above-mentioned housing 10 at the location of the light processing component 200, the light processing component 200 is located in the receiving cavity 12 of the housing 10, so that the light processing component 200 can be protected and isolated from the external environment, and dust and other impurities in the external environment are prevented from entering the light processing component 200 and causing damage.

[0039] Optionally, in this embodiment, a temperature control component can be provided on the housing 10. The main function of the temperature control component is to adjust the temperature in the receiving cavity 12 where the light processing component 200 is located, so that the light processing component 200 can always work in an ambient temperature that meets the predetermined specification requirements, ensuring that the temperature in the receiving cavity 12 is maintained within a stable range, thereby reducing the influence of temperature on precision instruments such as the light processing component 200.

[0040] Meanwhile, in this embodiment, a noise reduction component 30 is further provided on the wall surface of the housing 10. The noise reduction component 30 can effectively shield the sound outside the accommodation cavity 12, reduce the external noise from entering the accommodation cavity 12 and reduce the repeated oscillation of the noise in the accommodation cavity 12, thereby providing a stable acoustic environment for the optical processing component 200 and reducing the influence of the noise on its operation.

[0041] The noise reduction component 30 in this application can adopt a sound insulation material, and it can be attached to the wall surface of the housing 10, thereby cutting off the noise transmission inside and outside the accommodation cavity 12 and reducing the interference of the noise on the optical processing component 200. This application does not make special limitations on the specific material and attachment method of the noise reduction component 30.

[0042] To meet the requirements of light entry and exit, in this embodiment, a light entry window 1 and a light exit window 2 need to be opened on the light protection cover 100. Optionally, the light entry window 1 and the light exit window 2 need to penetrate through the wall portion 11 of the housing 10 to communicate with the accommodation cavity 12. External light can enter the accommodation cavity 12 through the light entry window 1. After being adjusted by the optical processing component 200 in the accommodation cavity 12, the light is finally exported from the light exit window 2 after several direction changes, thereby completing a stable and reliable light path transmission process under the action of the light protection cover 100.

[0043] This application does not make special limitations on the specific positions and sizes of the light entry window 1 and the light exit window 2, and it needs to be specifically determined according to the actual light path transmission path to ensure that the light can form an effective conduction.

[0044] The embodiment of the present utility model provides a light protection cover 100. By providing a temperature control component and a noise reduction component 30 on the wall portion 11 of the housing 10, the temperature in the accommodation cavity 12 of the housing 10 is made to meet the predetermined requirements by using the temperature control component, preventing the interference of the temperature difference with the external environment on the optical processing component 200. At the same time, the noise reduction component 30 is used to block the noise inside and outside the accommodation cavity 12 to prevent the noise from being conducted inside the accommodation cavity 12 and causing an adverse effect on the optical processing component 200. The import and export of external light are realized through the light entry window 1 and the light exit window 2 provided on the light protection cover 100, a stable and reliable optical processing process is formed in the accommodation cavity 12, the influence of temperature and noise on the light path propagation is reduced, the safety and stability of the overall structure for optical path processing are improved, reliable guarantee is provided for the continuous optical processing process, and it has better optical processing ability.

[0045] As an alternative embodiment, please refer to Figure 3The temperature control component includes a heat insulation layer 20, which is attached to the surface of the wall; the heat insulation layer 20 includes a heat conduction layer and a reflective heat insulation layer, the heat conduction layer covers the entire inner surface of the wall 11 facing the accommodating cavity 12, and the reflective heat insulation layer covers the entire outer surface of the wall 11 facing away from the accommodating cavity 12.

[0046] Optionally, a thermal insulation layer 20 is provided on the wall surface of the shell 10, and the thermal insulation layer 20 can be adhered to the surface of the shell 10. The thermal insulation layer 20 needs to use a material that is not good at conducting heat. Therefore, after the shell 10 covers the optical processing component 200, the accommodating cavity 12 inside it forms a closed space with extremely low thermal conductivity, thereby reducing the heat exchange between the inside and outside of the accommodating cavity 12. The present application does not specifically limit the specific bonding method of the thermal insulation layer 20 and the specific material of the thermal insulation layer 20, as long as it can effectively block the heat transfer inside and outside the accommodating cavity 12.

[0047] By providing the heat insulating layer 20 on the shell 10, a stable thermal environment is formed inside the accommodating cavity 12 of the shell 10, which is beneficial to controlling the ambient temperature of the optical processing component 200 and keeping the optical processing component 200 warm, thereby providing a guarantee for its stable and continuous operation.

[0048] Optionally, in this embodiment, the insulation layer 20 is adhered to the outer wall of the shell 10, so that the insulation performance of the insulation layer 20 is used to insulate the accommodating cavity 12. The insulation layer 20 is arranged on the outer wall of the shell 10 to better contact with the external environment, directly preventing external heat from entering the accommodating cavity 12, thereby forming a better insulation effect for the accommodating cavity 12.

[0049] Specifically, the heat insulation layer 20 can be divided into a heat conduction layer and a reflective heat insulation layer. The heat conduction layer can be attached to the inner surface of the shell 10, and the reflective heat insulation layer can be attached to the outer surface of the shell 10. The heat conduction layer on the inner surface of the shell 10 is conducive to the heat dissipation generated by the optical processing component 200 in the accommodating cavity 12. At the same time, the reflective heat insulation layer arranged on the outer surface of the shell 10 can block the heat in the external environment to avoid heat exchange with the inside of the accommodating cavity 12. Under the action of the above-mentioned heat insulation layer 20 to simultaneously regulate the heat inside and outside the shell 10, the predetermined temperature requirement is always maintained in the accommodating cavity 12, ensuring the stability of temperature control.

[0050] The embodiment of the utility model provides a light protection cover 100, which is convenient for fitting it to the wall of the shell by setting the temperature control component as a heat insulation layer and specifically dividing it into a heat conduction layer and a reflective heat insulation layer, so that their respective functions are fully exerted, the heat insulation effect is more significant, and the heat insulation capacity of the light protection cover 100 is further improved.

[0051] As an alternative embodiment, see Figures 6 to 8, the temperature control component further includes a heat exchange plate 21. The heat exchange plate 21 includes a hollow heat exchange tube 22 and an inlet 3 and an outlet 4 communicating with the heat exchange tube 22. The heat exchange tube 22 is disposed in the accommodation cavity 12, and the inlet 3 and the outlet 4 extend outside the housing 10. The heat exchange plate 21 is used to introduce a heat exchange medium into the accommodation cavity 12 to adjust the ambient temperature where the optical processing component 200 is located.

[0052] Considering that the optical processing component 200 generates relatively high heat during operation in the accommodation cavity 12, in order to cool the interior of the accommodation cavity 12 to reach a predetermined temperature range, a heat exchange plate 21 can be disposed in the accommodation cavity 12. Optionally, specifically, the interior can be cooled by a liquid cooling method. For example, the heat exchange plate 21 can be a cold water plate structure, and the heat exchange tubes inside it can be cold water coils for cold water to pass through, using cold water as the medium to achieve heat exchange inside the accommodation cavity 12.

[0053] Since it is necessary to provide a cooling medium for the heat exchange plate 21 inside the accommodation cavity 12, an inlet 3 and an outlet 4 penetrating through itself need to be provided on the light protection cover 100, so as to externally connect a device through the inlet 3 to provide a cooling medium for the heat exchange plate 21. After the cooling medium absorbs the heat in the accommodation cavity 12, it then flows back to the external device through the outlet 4 to complete the cooling cycle of the medium.

[0054] This application does not make special limitations on the specific positions and dimensions of the inlet 3 and the outlet 4 provided on the light protection cover 100, as long as it can ensure that the external cooling device completes the above cooling cycle process.

[0055] An embodiment of the present utility model provides a light protection cover 100. By providing an inlet 3 and an outlet 4 on the light protection cover 100, a connection with the heat exchange plate 21 inside the accommodation cavity 12 is formed using this opening, thereby realizing the liquid cooling process inside the accommodation cavity 12, meeting the multi-functional application of the light protection cover 100, and providing a reliable guarantee for reaching a predetermined temperature range in the accommodation cavity 12.

[0056] As an optional embodiment, please refer to Figure 3 , the noise reduction component 30 includes a sound insulation layer 31 and a sound absorption layer 32. The sound insulation layer 31 covers the inner surface of the wall portion 11 facing the accommodation cavity 12, and the sound insulation layer 31 is used to block the acoustic crosstalk between the inside and outside of the accommodation cavity 12. The sound absorption layer 32 is attached to one side surface of the sound insulation layer 31 facing the accommodation cavity 12.

[0057] Optionally, the noise reduction component 30 specifically includes a sound insulation layer 31. The sound insulation layer 31 can be disposed on the inner wall of the housing 10. On the basis of the housing 10 initially blocking the noise, the sound insulation layer 31 further blocks the noise, so as to effectively prevent external noise from entering the accommodation cavity 12 and form an effective sound insulation barrier.

[0058] Optionally, in this embodiment, a sound-absorbing layer 32 is further provided in the noise reduction component 30. The main function of the sound-absorbing layer 32 is to absorb the generated noise, and sound-absorbing materials can be specifically used, which is not limited in this application.

[0059] This embodiment mainly considers that when noise is generated inside the accommodation cavity 12, the noise will form repeated oscillations in the accommodation cavity 12, which is likely to interfere with the internal optical processing component 200 and affect the light processing process. Therefore, in this embodiment, by providing a sound-absorbing layer 32 on the inner wall of the accommodation cavity 12, the noise in the accommodation cavity 12 is absorbed, reducing the generation of noise.

[0060] It can be seen from this that the sound-absorbing layer 32 needs to be provided inside the sound-insulating layer 31. The light protection cover 100 uses the sound-insulating layer 31 to block the noise from the external environment from entering the accommodation cavity 12, and at the same time uses the sound-absorbing layer 32 to absorb the existing noise in the accommodation cavity 12, comprehensively eliminating the noise inside the housing 10 and providing a stable acoustic environment for the optical processing component 200 in the accommodation cavity 12.

[0061] This embodiment of the utility model provides a light protection cover 100. By further providing a sound-absorbing layer 32 inside the sound-insulating layer 31, the sound-absorbing layer 32 is used to absorb the noise inside the accommodation cavity 12, realizing the internal and external isolation of the noise and more fully reducing the influence of the noise on the optical processing component 200.

[0062] As an alternative embodiment, please refer to Figure 6 , the light protection cover 100 further includes a ventilation component 5. The ventilation component 5 is disposed through the wall portion 11 and communicates with the accommodation cavity 12. The ventilation component 5 is used to replace the operating environment medium of the optical processing component 200 inside the accommodation cavity 12.

[0063] Optionally, a ventilation component 5 can be provided on the light protection cover 100. An air replacement pipeline is connected to the ventilation component 5. Its main function is to replace the gas inside the accommodation cavity 12 once or regularly after the optical path system is assembled, so that the internal gas becomes dry and clean gas, such as inert gas like nitrogen, which also provides better protection for the internal optical processing component 200.

[0064] This application does not make special limitations on the specific position, quantity and size of the ventilation component 5, as long as it can effectively replace the gas in the accommodation cavity 12 in a timely manner.

[0065] This embodiment of the utility model provides a light protection cover 100. By providing a ventilation component 5 on the light protection cover 100, the replacement of the gas in the accommodation cavity 12 is completed, so that a safer and more reliable gas environment is obtained inside, providing a safety guarantee for the optical path transmission.

[0066] Please refer to Figure 1 and Figure 2 According to an embodiment of the present invention, an optical system is provided, which includes a carrier 500, a light-emitting component 400, an optical processing component 200, and the above-mentioned optical protection cover 100. The light-emitting component 400 is disposed on the carrier 500; the optical processing component 200 is disposed on the carrier 500 and is spaced apart from the light-emitting component 400; the optical protection cover 100 is on the carrier 500 and covers the optical processing component 200, and is used for controlling the temperature and reducing the noise in the working environment of the optical processing component 200. The light emitted by the light-emitting component 400 enters the accommodation cavity 12 through the light incident window 1, and then is emitted through the light exit window 2 after passing through the optical processing component 200.

[0067] Optionally, the carrier 500 can be an optical platform, and the optical platform can be made of materials that are not easy to conduct heat, such as marble, granite, ceramics, etc., so as to cooperate with the optical protection cover 100 to complete the heat preservation of the optical processing component 200 in the accommodation cavity 12. The light-emitting component 400 can be a laser, and the laser beam emitted hits enters the accommodation cavity 12 through the light incident window 1 of the optical protection cover 100, and after being processed by the optical processing component 200, it is emitted through the light exit window 2.

[0068] The embodiment of the present invention provides an optical system. The optical protection cover 100 is used to cover the optical processing component 200. By providing a temperature control component and a noise reduction component 30 on the wall portion 11 of the housing 10, the temperature in the accommodation cavity 12 of the housing 10 is made to meet the predetermined requirements by using the temperature control component, preventing the interference of the optical processing component 200 caused by the temperature difference with the external environment. At the same time, the noise reduction component 30 is used to block the noise inside and outside the accommodation cavity 12, preventing the noise from being conducted inside the accommodation cavity 12 and causing adverse effects on the optical processing component 200. The introduction and export of external light are realized through the light incident window 1 and the light exit window 2 provided on the optical protection cover 100, forming a stable and reliable optical processing process in the accommodation cavity 12, reducing the influence of temperature and noise on the optical path propagation, improving the safety and stability of the overall structure for optical path processing, providing a reliable guarantee for the continuous optical processing process, and having better optical processing capabilities.

[0069] As an optional embodiment, please refer to Figure 4 and Figure 5 The optical system includes a wind guiding member 50. The wind guiding member 50 is disposed on the wall portion 11 of the housing 10. The wind guiding member 50 has an air inlet and an air outlet, and the wind guiding member 50 blows air towards the light incident window 1 and / or the light exit window 2 through the air outlet.

[0070] In this embodiment, it is mainly considered that when external light enters the accommodation cavity 12 through the light inlet window 1, or when the light in the accommodation cavity 12 exits through the light outlet window 2, due to the effect of light at this time, a temperature difference is caused between the inside and outside of the accommodation cavity 12. Especially in winter, the temperature in the accommodation cavity 12 is relatively high and the external temperature is relatively low. At this time, water droplets after liquefaction are likely to form at the light inlet window 1 and the light outlet window 2. In order to remove the above-mentioned formed water droplets in time, a wind guiding member 50 is provided on the housing 10 in this embodiment.

[0071] Specifically, the wind guiding member 50 itself has an air inlet and an air outlet. When the wind guiding member 50 is arranged at the light inlet window 1 or the light outlet window 2 where water droplets are likely to be generated, the air outlet of the wind guiding member 50 needs to be aligned with the light inlet window 1 or the light outlet window 2. By externally connecting a wind guiding device to the air inlet of the wind guiding member 50 to provide driving force for the formed air flow, the formed air flow is discharged from the air outlet. After blowing air at the position aligned with the light inlet window 1 or the light outlet window 2, the water vapor at this position disappears, avoiding the influence of water vapor.

[0072] Optionally, the wind guiding member 50 can be detachably connected to the outer wall of the housing 10, and can be arranged at the light inlet window 1 or the light outlet window 2 according to different water droplet removal requirements, or can be arranged simultaneously. The present application does not limit this.

[0073] The embodiment of the present utility model provides an optical system. By providing a wind guiding member 50 on the housing 10, the wind guiding member 50 is used to provide an air flow for the light inlet window 1 and the light outlet window 2, thereby removing the water vapor at the corresponding positions, avoiding the influence of water vapor caused by the temperature difference between the inside and outside, further improving the safety and stability of the overall structure, and providing guarantee for its stable operation.

[0074] As an alternative embodiment, please refer to Figure 4 and Figure 5 , at least a part of the wind guiding member 50 extends along the surface of the wall portion 11, so that the air outlet is attached to the surface of the wall portion 11 for blowing towards the light inlet window 1 and / or the light outlet window 2.

[0075] The embodiment of the present utility model provides an optical system. By making the air flow of the wind guiding member 50 flow along the surface of the wall portion 11, the air flow can flow more closely to the light inlet window 1 and / or the light outlet window 2, and the air flow is closer to the light inlet window 1 and / or the light outlet window 2, so as to more effectively remove the water vapor on the light inlet window 1 and / or the light outlet window 2, and has a better defogging effect.

[0076] As an alternative embodiment, please refer to Figure 5, the air guiding member 50 includes an air guiding pipe 51 extending along a first direction X and an air jet head 52 extending along a second direction Z, which intersect and communicate with each other. The air guiding member 50 is connected to the wall portion 11 through the air guiding pipe 51. At least a part of the air jet head 52 is attached to the wall surface of the housing 10. The air inlet is provided at the free end of the air guiding pipe 51, and the air outlet is provided at the free end of the air jet head 52. The first direction X and the second direction Z intersect.

[0077] Specifically, the structure of the air guiding member 50 includes a communicating air guiding pipe 51 and an air jet head 52. Optionally, the first direction X and the second direction Z are perpendicular to each other, so that the air guiding pipe 51 and the air jet head 52 are perpendicular to each other.

[0078] When an air flow is formed in the air guiding pipe 51, the air flow can flow along the first direction X towards the outer wall of the housing 10. When the air flow passes through the air jet head 52, it changes direction in the air jet head 52 and flows along the second direction Z. Since the air outlet of the air guiding member 50 is aligned with the light incident window 1 or the light exit window 2, and the air jet head 52 is attached to the wall surface of the housing 10, therefore, the air flow in the air jet head 52 is discharged through the air outlet and blows directly along the outer wall of the housing 10 to the light incident window 1 or the light exit window 2, thereby completing the removal of water vapor at this position.

[0079] The embodiment of the present utility model provides a light protection cover 100, and provides a specific structure of an air guiding member 50. By utilizing the cooperation relationship between the air guiding pipe 51 and the air jet head 52, the air flow can smoothly flow to the designated position. At the same time, through the commutation of the pipeline, it is also convenient to externally connect an air guiding device to the air guiding member 50, which is beneficial to complete the air guiding at the designated position.

[0080] As an alternative embodiment, please refer to Figure 5 , the cross-sectional area of the connection port of the air jet head 52 at one end in the second direction Z and the air guiding pipe 51 is larger than the cross-sectional area of the air outlet at the other end; the air outlet includes a slit-shaped opening, the air outlet extends in a third direction Y and the length dimension in the third direction Y is larger than the length dimension in the first direction X, and the length dimension of the air outlet in the third direction Y at least exceeds the length dimension of the light incident window 1 and / or the light exit window 2 in the third direction Y, so that the blown air flow covers the light incident window 1 and / or the light exit window 2. The first direction X, the second direction Z and the third direction Y intersect pairwise.

[0081] In order to enable the air guiding member 50 to have a larger air output volume to achieve a better blowing effect, in this embodiment, the opening size of the air jet head 52 is adjusted to form a gradually changing size in the air flow direction, and its opening is set to have a gradually decreasing opening area, so as to obtain a larger air volume at the air outlet.

[0082] When the opening of the air jet head 52 gradually decreases, the air flow has an increasing air pressure during the flowing process, so that the maximum air pressure exists at the air outlet, which improves the blowing intensity on the light incident window 1 or the light exit window 2, more fully removes the water vapor at the corresponding position, and has a better removal effect.

[0083] This application does not make special limitations on the specific gradual change size of the air jet head 52, which can be determined according to the actual forming process and the actual air outlet effect, as long as the blowing effect can be improved by using the increased air pressure.

[0084] An embodiment of the present utility model provides a light protection cover 100. By setting the opening size of the air jet head 52 in a gradually shrinking structural form, the discharge pressure of the air flow is effectively increased, the wind speed at the air outlet is increased, a stronger dehumidification effect is achieved, and the dehumidification capacity at the corresponding position is improved.

[0085] Optionally, the first direction X may be the length direction of the housing 10, the second direction Z may be the height direction of the housing 10, and the third direction Y may be the width direction of the housing 10.

[0086] That is to say, the air flow in the air duct 51 in this embodiment blows towards the outer wall of the housing 10 along the length direction, and then blows downwards towards the light incident window 1 or the light exit window 2 along the height direction after entering the air jet head 52. At this time, the size of the air jet head 52 in the width direction gradually increases until the air flow is blown out from the air outlet.

[0087] It can be understood that since the opening area of the air flow in the air jet head 52 gradually decreases, the air flow obtains a gradually increasing air pressure in the air jet head 52, which improves the final air outlet speed. At the same time, the size of the opening in the air jet head 52 increases in the width direction, so that the air flow has a larger air sweeping range on the basis of the increasing air pressure to adapt to different sizes of the light incident window 1 or the light exit window 2.

[0088] An embodiment of the present utility model provides a light protection cover 100. By setting the opening size of the air jet head 52 in the air guiding member 50 to be gradually increasing in the third direction Y, the air flow has a larger air sweeping range after being discharged from the air jet head 52. Therefore, on the basis of having a larger discharge air pressure, the air outlet range of the air guiding member 50 is increased, and thus a better dehumidification effect is achieved.

[0089] An embodiment of the present utility model provides a light protection cover and an optical system. By fitting a temperature control component and a noise reduction component on the wall surface of the housing, the temperature in the accommodation cavity of the housing is made to meet the predetermined requirements by using the temperature control component, preventing interference with the light processing component due to the temperature difference formed with the external environment. At the same time, the noise reduction component is used to block the noise inside and outside the accommodation cavity, preventing the noise from conducting inside the accommodation cavity and causing an adverse effect on the light processing component. The introduction and export of external light are realized through the light inlet window and the light outlet window provided on the light protection cover, forming a stable and reliable light processing process in the accommodation cavity, reducing the influence of temperature and noise on the light path propagation, improving the safety and stability of the overall structure for light path processing, providing a reliable guarantee for the continuous light processing process, and having better light processing capabilities.

[0090] Although the present utility model has been described with reference to the preferred embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A light protection cover, characterized in that: include: The housing comprises a wall portion, a receiving cavity enclosed by the wall portion, and an opening communicating with the receiving cavity, wherein the housing is engaged with an external support body through the opening, and the light processing component is received through the receiving cavity, and the wall portion is provided with a light inlet window and a light outlet window communicating with the receiving cavity for light to pass through; A temperature control component, disposed in the housing and used to adjust the ambient temperature of the light processing component in the accommodating cavity; A noise reduction component is arranged on the wall portion, and is used to block the sound wave crosstalk inside and outside the accommodating cavity to reduce the noise of the working environment of the optical processing component.

2. The light protection cover according to claim 1, characterized in that: The temperature control assembly includes a heat insulation layer, and the heat insulation layer is attached to the surface of the wall; The heat insulation layer includes a heat conduction layer and a reflective heat insulation layer. The heat conduction layer covers the entire inner surface of the wall portion facing the accommodating cavity, and the reflective heat insulation layer covers the entire outer surface of the wall portion facing away from the accommodating cavity.

3. The light protection cover according to claim 1, characterized in that: The temperature control component also includes a heat exchange plate, which includes a hollow heat exchange tube and an inlet and an outlet connected to the heat exchange tube. The heat exchange tube is arranged in the accommodating cavity, and the inlet and the outlet extend out of the shell. The heat exchange plate is used to introduce heat exchange medium into the accommodating cavity to adjust the ambient temperature of the optical processing component.

4. The light protection cover according to claim 1, characterized in that: The noise reduction component includes a sound insulation layer and a sound absorption layer. The sound insulation layer covers the inner surface of the wall portion facing the accommodating cavity. The sound insulation layer is used to block the crosstalk of sound waves inside and outside the accommodating cavity. The sound absorption layer is attached to the side surface of the sound insulation layer facing the accommodating cavity.

5. The light protection cover according to claim 1, characterized in that: The light protection cover further comprises a ventilation component, which is disposed through the wall portion and communicated with the accommodating cavity, and is used for replacing the working environment medium of the light processing component inside the accommodating cavity.

6. An optical system, characterized in that: include: bearing member; A light emitting member, disposed on the carrier; A light processing component, disposed on the carrier and spaced apart from the light emitting component; The light protection cover as described in any one of claims 1 to 5, wherein the light protection cover is on the carrier and covers the light processing component, and is used to control the temperature and reduce the noise of the working environment of the light processing component. The light emitted by the light-emitting component enters the accommodating cavity through the light inlet window, and is emitted through the light outlet window after passing through the light processing component.

7. The optical system according to claim 6, characterized in that The optical system includes an air guide member, which is arranged on the wall portion of the shell, and has an air inlet and an air outlet. The air guide member blows air toward the light inlet window and / or the light outlet window through the air outlet.

8. The optical system according to claim 7, characterized in that At least a portion of the air guide extends in contact with the surface of the wall portion, so that the air outlet is in contact with the surface of the wall portion for blowing toward the light inlet window and / or the light outlet window.

9. The optical system according to claim 8, characterized in that The air guide member includes an air guide duct extending along a first direction and an air nozzle extending along a second direction, which are intersecting and connected. The air guide member is connected to the wall portion through the air guide duct, and at least a portion of the air nozzle is attached to the wall surface of the shell. The air inlet is arranged at the free end of the air guide duct, and the air outlet is arranged at the free end of the air nozzle, and the first direction and the second direction intersect.

10. The optical system according to claim 9, characterized in that The flow area of ​​the connection opening between one end of the nozzle in the second direction and the air duct is larger than the flow area of ​​the air outlet at the other end; The air outlet includes a slit-shaped opening, which extends in a third direction and has a length dimension in the third direction that is greater than a length dimension in the first direction. The length dimension of the air outlet in the third direction at least exceeds the length dimension of the light inlet window and / or the light outlet window in the third direction, so that the blown airflow covers the light inlet window and / or the light outlet window, and the first direction, the second direction and the third direction intersect with each other.

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