CN210666320U - Protection component and projection equipment - Google Patents

Abstract

The embodiment of the utility model provides a protection component and projection equipment. The protection component comprises a buckling part, a connecting part and a first adsorption part, the buckling part is provided with an accommodating hole, the buckling part is used for buckling on a support of a lens of the projection optical machine, so that the lens of the projection optical machine is accommodated in the accommodating hole, the buckling part is provided with a side wall, a mounting groove is formed in the side wall, the connecting part is located in the mounting groove, the first adsorption part is attached to the connecting part, the first adsorption part covers an opening of the accommodating hole of the buckling part, the connecting part is used for attaching the first adsorption part and the buckling part in sealing connection, and the first adsorption part is used for adsorbing foreign matters on the lens of the projection optical machine to protect the lens of the projection optical machine. The protection subassembly that this application embodiment provided can form waterproof antifog dustproof protection to the camera lens of projection ray apparatus, helps promoting the projection quality of projection ray apparatus.

Description

Protection component and projection equipment

Technical Field

The utility model relates to an electronic product technical field especially relates to a protection component and projection equipment.

Background

The projector generally includes a projection imaging system and an optical amplification system, and the projection signal is converted into an image signal by processing of the imaging technology of the projector, and then the image signal is projected and displayed on a screen by amplification of the optical system. The optical machine is a core display module of the projector and is used for generating images and projecting pictures on a display screen through an optical imaging system of the optical machine. The existing dustproof device of the projection optical machine is sealed by a foam pressing optical machine lens and a transparent glass panel to achieve the dustproof effect, and some of the dustproof devices are sealed by a straight cylinder optical machine lens with a cylinder or other shapes and the transparent glass panel to achieve the dustproof effect; however, the design is not easy to cause water vapor to come out after sealing, and the atomization phenomenon is easy to occur on the lens, so that the projection effect of the optical machine is influenced.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a protection component and projection equipment, protection component can form waterproof antifog dustproof protection to the camera lens of projection ray apparatus, has promoted the projection effect of projection ray apparatus.

The embodiment of the utility model provides a protection component for protect the camera lens of projection ray apparatus, protection component includes buckling parts, connecting portion and first absorption portion, the buckling parts has the accepting hole, the buckling parts is used for the lock to be in on the support of the camera lens of projection ray apparatus, so that the camera lens of projection ray apparatus accept in the accepting hole, the buckling parts has the lateral wall, the mounting groove has on the lateral wall, connecting portion are located in the mounting groove, first absorption portion laminate in connecting portion, just first absorption portion lid fits the opening part of the accepting hole of buckling parts, connecting portion be used for with first absorption portion with buckling parts sealing connection, first absorption portion is used for adsorbing foreign matter on the camera lens of projection ray apparatus, with it is right the camera lens of projection ray apparatus forms the protection.

The embodiment of the utility model provides a protection component passes through connecting portion sealing connection with first absorption portion and buckling parts, when the buckling of buckling parts is on the support of the camera lens of projection ray apparatus, the camera lens of projection ray apparatus is acceptd in the accommodating hole of buckling parts, at this moment, the camera lens setting of the neighbouring projection ray apparatus of first absorption portion, first absorption portion can adsorb the foreign matter that is located the camera lens of projection ray apparatus, thereby can play waterproof antifog dustproof protection to the camera lens of projection ray apparatus, help promoting the projection quality of projection ray apparatus.

The embodiment of the utility model provides a still provide a projection equipment, projection equipment includes the projection ray apparatus and the protection component who provides as above arbitrary embodiment, protection component install in on the projection ray apparatus, the projection ray apparatus have the support and install in camera lens on the support, the protection component cover is located the support, with right the camera lens forms the protection.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an assembly structure diagram of the protection component installed on the projection light machine provided in the embodiment of the present invention.

Fig. 2 is an illustration of an explosion structure of the protection component installed on the projection light machine according to an embodiment of the present invention.

Fig. 3 is a first schematic structural diagram of a cross-sectional view of a projection optical machine with a protection component according to an embodiment of the present invention.

Fig. 4 is a second schematic structural diagram of a cross-sectional view of the protection component installed on the projection optical machine according to an embodiment of the present invention.

Fig. 5 is a third schematic structural diagram of a cross-sectional view of the protection component installed on the projection optical machine according to an embodiment of the present invention.

Fig. 6 is a first schematic structural diagram of a cross-sectional view of a protection component according to an embodiment of the present invention.

Fig. 7 is a schematic diagram of a corresponding partial enlarged view of the region M of the shield assembly provided in fig. 6.

Fig. 8 is a schematic structural diagram ii of a cross-sectional view of a protection component according to an embodiment of the present invention.

Fig. 9 is a schematic diagram of a partial enlarged view of the region N of the shield assembly provided in fig. 8.

Fig. 10 is a first schematic structural view of a cross-sectional view of a fastening portion of a protection component according to an embodiment of the present invention

Fig. 11 is a second schematic structural diagram of a cross-sectional view of a fastening portion of a shield assembly according to an embodiment of the present invention.

Fig. 12 is a third schematic structural diagram of a cross-sectional view of a protection component according to an embodiment of the present invention.

Fig. 13 is a schematic diagram of a corresponding partial enlarged view of the region P of the shield assembly provided in fig. 12.

Fig. 14 is a fourth schematic structural diagram of a cross-sectional view of a projection optical machine with a protection component according to an embodiment of the present invention.

Fig. 15 is a schematic structural diagram of a projection apparatus according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The description of illustrative embodiments in accordance with the principles of the invention is intended to be read in connection with the accompanying drawings, which are to be considered part of the entire written description. In describing the disclosed embodiments of the present invention, reference to any direction or orientation is intended only for convenience of illustration and is not intended to limit the scope of the present invention in any way. Relative terms (such as "front," "back," "upper," "lower," "side," "outer," "inner," "middle," "inner," "outer," "lower," "upper," "horizontal," "vertical," "above," "below," "up," "down," "top" and "bottom") and derivatives thereof (e.g., "horizontally," "downwardly," "upwardly," etc.) should be construed to refer to the orientation as then described or as shown in the drawing under discussion. These relative terms are for convenience of description only and do not require that the apparatus be constructed or operated in a particular orientation unless otherwise specifically stated. The invention should therefore not be limited to the exemplary embodiments which illustrate some possible non-limiting combinations of features which may be present alone or in other feature combinations; the scope of protection of the invention is defined by the appended claims.

As presently contemplated, this disclosure describes the best mode or mode of practice of the invention. The present invention is not intended to be construed as limited to the particular embodiments shown, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. Like reference characters designate like or similar parts throughout the various views of the drawings.

Referring to fig. 1, fig. 2 and fig. 3 together, a protection component 10 provided in the embodiment of the present application is used for protecting a lens 21 of a projection optical engine 20, where the protection component 10 includes a buckling portion 100, a connecting portion 200 and a first absorption portion 300, the buckling portion 100 has an accommodating hole 100a, the buckling portion 100 is used for buckling on a support 22 of the lens 21 of the projection optical engine 20, so that the lens 21 of the projection optical engine 20 is accommodated in the accommodating hole 100a, the buckling portion 100 has a side wall 100b, the side wall 100b has an installation groove 100c, the connecting portion 200 is located in the installation groove 100c, the first absorption portion 300 is attached to the connecting portion 200, the first absorption portion 300 covers an opening of the accommodating hole 100a of the buckling portion 100, and the connecting portion 200 is used for hermetically connecting the first absorption portion 300 and the buckling portion 100, the first adsorption part 300 is used for adsorbing foreign matters on the lens 21 of the optical projection engine 20 to protect the lens 21 of the optical projection engine 20.

The optical projector 20 is an apparatus capable of projecting an optical image, and the optical image generated by the optical device inside the optical projector 20 is projected onto the curtain through the lens 21 of the optical projector 20, so as to display the optical image. Dust is easily accumulated on the lens 21 of the optical projection engine 20, and moisture, mist and the like on the lens 21 all affect the projection effect of the optical projection engine 20. Therefore, foreign matters (including water vapor, mist, dust, etc.) on the lens 21 of the projector 20 need to be cleaned, so as to improve the projection quality of the projector 20.

The fastening portion 100 is a cylindrical structure and has a receiving hole 100a, the fastening portion 100 has a first end 101 and a second end 102 opposite to each other, the first end 101 is used for fastening the lens 21 of the projector 20, and the second end 102 is used for mounting the connecting portion 200 and the first absorption portion 300. The sidewall 100b of the second end 102 has a mounting groove 100c, the connecting portion 200 is located in the mounting groove 100c, and the connecting portion 200 has an adhesive function to adhere the first absorbing portion 300 to the fastening portion 100. The first adsorption part 300 covers an opening of the receiving hole 100a of the fastening part 100, and is in sealing connection with the fastening part 100. The connection portion 200 may be a waterproof silicone or a sealing ring with adhesive property, and may connect the first absorption portion 300 to the fastening portion 100. The first adsorption part 300 is a dense film-plated anti-fog lens, and specifically, may be a water-absorbing and fog-absorbing agent sheet. When the lens 21 of the optical projection engine 20 is mounted on the protection component 10, the lens 21 is closer to the first absorption portion 300, and the first absorption portion 300 can absorb foreign matters on the lens 21, including water vapor, mist, dust, and the like, which is helpful to improve the projection quality of the optical projection engine 20. The first suction portion 300 may be a transparent lens or a non-transparent lens.

The embodiment of the present invention provides a protection assembly 10 for protecting a lens 21 of a projection optical machine 20, wherein the protection assembly 10 includes a fastening portion 100, a connecting portion 200 and a first absorption portion 300, the fastening portion 100 has a receiving hole 100a, the fastening portion 100 is used for fastening to a support 22 of the lens 21 of the projection optical machine 20, so that the lens 21 of the projection optical machine 20 is received in the receiving hole 100a, the fastening portion 100 has a side wall 100b, the side wall 100b has a mounting groove 100c, the connecting portion 200 is located in the mounting groove 100c, the first absorption portion 300 is attached to the connecting portion 200, the first absorption portion 300 covers an opening of the receiving hole 100a of the fastening portion 100, the connecting portion 200 is used for sealing and connecting the first absorption portion 300 and the fastening portion 100, the first absorption portion 300 is used for absorbing foreign matters on the lens 21 of the projection optical machine 20, so as to form a protection for the lens 21 of the projector engine 20. The first absorbing part 300 is hermetically connected with the fastening part 100 through the connecting part 200, when the fastening part 100 is fastened on the support 22 of the lens 21 of the optical projection engine 20, the lens 21 of the optical projection engine 20 is accommodated in the accommodating hole 100a of the fastening part 100, at this time, the first absorbing part 300 is arranged adjacent to the lens 21 of the optical projection engine 20, and the first absorbing part 300 can absorb foreign matters on the lens 21 of the optical projection engine 20, so that waterproof, antifogging and dustproof protection can be performed on the lens 21 of the optical projection engine 20, and the improvement of the projection quality of the optical projection engine 20 is facilitated.

With reference to fig. 4, the fastening portion 100 includes a first portion 110 and a second portion 120 connected to each other, the first portion 110 has a first through hole 110a, the second portion 120 has a second through hole 120a, at least a portion of the first through hole 110a and the second through hole 120a are disposed opposite to each other, the first through hole 110a and the second through hole 120a form an accommodating hole 100a, the first through hole 110a is used for accommodating the support 22 of the lens 21 of the optical projection engine 20, and the side wall 100b of the second portion 120 away from the first portion 110 has the mounting groove 100 c.

In an embodiment, the first through hole 110a and the second through hole 120a are consistent in size, the first through hole 110a and the second through hole 120a are disposed opposite to each other, the first through hole 110a and the second through hole 120a form the receiving hole 100a, the first through hole 110a is used for receiving the lens 21 of the projection light engine 20, a side wall 100b of the second portion 120, which is away from the first portion 110, is provided with a mounting groove 100c, and the mounting groove 100c is used for mounting the connecting portion 200. The connecting portion 200 has adhesive property, the connecting portion 200 is connected between the fastening portion 100 and the first absorption portion 300, so as to fix the first absorption portion 300 on the fastening portion 100, the first absorption portion 300 is connected with the fastening portion 100 in a sealing manner, thereby preventing external water vapor, mist and dust from entering the receiving hole 100a, and preventing the lens 21 of the projection light engine 20 from being polluted.

In one embodiment, the first portion 110 and the second portion 120 are provided as a unitary structure. That is, the first portion 110 and the second portion 120 are formed together in the same process, which contributes to increasing the structural strength of the fastening part 100 and improving the sealing performance of the shield assembly 10. In addition, it also helps to improve the uniformity of the appearance of the shield assembly 10.

In another embodiment, the first portion 110 and the second portion 120 are formed separately, i.e., the first portion 110 and the second portion 120 are separate structures, and the first portion 110 and the second portion 120 are sealingly connected together. The first portion 110 and the second portion 120 may be connected by glue, by welding, or by other sealing methods.

With reference to fig. 5, a side wall 100b of the second portion 120, which faces away from the first portion 110, is further provided with a limiting groove 120b, the limiting groove 120b is used for accommodating the first absorption part 300, and a radial dimension of the first absorption part 300 is greater than a radial dimension of the connection part 200.

Specifically, the position of the limiting groove 120b is adjacent to the edge of the fastening part 100 relative to the position of the mounting groove 100c, the limiting groove 120b is used for accommodating the first absorbing part 300, the mounting groove 100c is used for accommodating the connecting part 200, the first absorbing part 300 is fastened to the fastening part 100, and the radial dimension of the first absorbing part 300 is greater than the radial dimension of the connecting part 200.

Further, the connecting portion 200 is annular and has an inner ring and an outer ring, the inner ring and the outer ring are abutted against the side wall 100b of the mounting groove 100c, and the first absorbing portion 300 is attached to the connecting portion 200 and the fastening portion 100. The first absorption part 300 is also annular, and an interference fit is formed between the first absorption part 300 and the limiting groove 120b, so that the first absorption part 300 and the fastening part 100 are in sealed connection.

With reference to fig. 6 and 7, a protection foam 350 is disposed between the first absorption portion 300 and the second portion 120, at least a portion of the protection foam 350 is located in the limiting groove 120b, the protection component 10 further includes a sealing colloid 360, at least a portion of the sealing colloid 360 is located in the limiting groove 120b, the sealing colloid 360 covers the protection foam 350, the sealing colloid 360 is used for fixing the protection foam 350 between the first absorption portion 300 and the second portion 120, the protection foam 350 is used for absorbing water vapor, and the protection foam 350 is used for shock absorption and protection of the protection component 10.

Specifically, the protection foam 350 is disposed at a matching position between the first absorbing portion 300 and the second portion 120, the sealing colloid 360 covers the protection foam 350, the sealing colloid 360 is disposed at a side of the second portion 120 departing from the first portion 110, the sealing colloid 360 is partially disposed in the limiting groove 120b, the sealing colloid 360 is disposed between the first absorbing portion 300 and the second portion 120 to form a sealing connection, and when the lens 21 of the projection optical machine 20 is accommodated in the first portion 110, the protection foam 350 is used for absorbing water vapor on the lens 21 to dry the lens 21. And the protection foam 350 has certain elasticity, and can absorb the vibration on the protection component 10, so that the protection component 10 can be protected by shock absorption.

Referring to fig. 8 and 9, in another embodiment, a plurality of adsorption particles 370 are disposed in the sealing colloid 360, the arrangement density of the adsorption particles 370 is gradually decreased from one side of the first portion 110 to one side of the second portion 120, that is, the adsorption particles 370 in the sealing colloid 360 are more densely arranged and are more sparsely arranged near one side of the second portion 120, the adsorption particles 370 in the sealing colloid 360 have an effect of absorbing water vapor, mist and dust, the adsorption particles 370 are more densely arranged near one side of the first portion 110, when the lens 21 of the projection optical engine 20 is accommodated in the first portion 110, the adsorption particles can better adsorb foreign matters on the lens 21, and further the projection quality of the projection optical engine 20 is improved.

With reference to fig. 10, the radial dimension of the second portion 120 is larger than the radial dimension of the first portion 110, the second portion 120 has a first connection surface 121 and a second connection surface 122 connected to each other, the first connection surface 121 is connected to the first portion 110, the second connection surface 122 is located on the periphery side of the first portion 110, the second connection surface 122 is a tapered surface, and the radial dimension of the second connection surface 122 gradually increases from the side of the first portion 110 to the side adjacent to the second portion 120.

Specifically, the second portion 120 protrudes from the peripheral side of the first portion 110, the second portion 120 has a first connection surface 121 and a second connection surface 122 connected to each other, the first connection surface 121 is connected to the first portion 110, the second connection surface 122 faces a side away from the first portion 110 relative to the first connection surface 121, that is, the second connection surface 122 and the first connection surface 121 are not located on the same plane, the second connection surface 122 is a tapered surface, and a radial dimension of the second connection surface 122 gradually increases from the side of the first portion 110 to the side of the second portion 120. At this time, the stress distribution when the first and second portions 110 and 120 are connected may be reduced, so that the stress distribution when the first and second portions 110 and 120 are connected is more uniform, thereby increasing the structural strength of the fastening part 100.

Referring to fig. 11, the second portion 120 has an inner sidewall 120c, the inner sidewall 120c encloses the second through hole 120a, the inner sidewall 120c has an accommodating groove 120d, the protection component 10 further includes a second absorption portion 400, the second absorption portion 400 includes a plurality of absorption pieces 410 arranged in an annular array, the absorption pieces 410 are located in the accommodating groove 120d, and the second absorption portion 400 and the first absorption portion 300 cooperate with each other to absorb the foreign object on the lens 21 of the projection light engine 20.

Specifically, the holding groove 120d is an annular groove, and the plurality of adsorbing members 410 are arranged in the holding groove 120d in an annular array. The size of a plurality of adsorbs piece 410 all keeps unanimous, and adjacent two interval between adsorbing piece 410 keeps unanimous to foreign matter on the absorption camera lens 21 that can be comparatively even promotes the projection quality of projection ray apparatus 20. The adsorbing element 410 may be a drying agent, and is used for absorbing moisture, mist, and the like on the lens 21 and helping to make dust on the lens 21 fall off.

Further, adjacent two be provided with sealing colloid 360 between the absorption piece 410, sealing colloid 360 is used for with adjacent absorption piece 410 fixed connection, avoids absorbing piece 410 and drops from buckling parts 100, and on the other hand, sealing colloid 360 still is used for forming sealing connection between absorption piece 410 and buckling parts 100 to avoid outside steam, fog and dust etc. to enter into buckling parts 100 in, cause the interference to the camera lens 21 of projection ray apparatus 20.

With continued reference to fig. 12 and 13, the second portion 120 has a first surface 120d facing away from the first portion 110, the first absorbent portion 300 has a second surface 300a facing away from the first portion 110, and the second surface 300a is disposed adjacent to the first portion 110 relative to the first surface 120 d.

Specifically, the second portion 120 partially protrudes from the surface of the first absorption part 300, so that the first absorption part 300 can be protected, and the first absorption part 300 is prevented from being worn. The second portion 120 has a first surface 120d facing away from the first portion 110, the first absorption part 300 has a second surface 300a facing away from the first portion 110, the second surface 300a is disposed adjacent to the first portion 110 relative to the first surface 120d, that is, the distance between the second surface 300a and the first portion 110 is closer, the distance between the first surface 120d and the first portion 110 is farther, and at this time, the first absorption part 300 is partially accommodated in the second portion 120, and the second portion 120 can form physical protection for the first absorption part 300, so as to prevent the first absorption part 300 from being worn.

In one embodiment, the second surface 300a is a plane surface, so as to prevent the second surface 300a from protruding from one side of the second portion 120, and to help protect the second surface 300 a. In another embodiment, the second surface 300a is an arc-shaped surface, and the center of curvature of the second surface 300a faces to a side adjacent to the first portion 110, so that the second surface 300a can be better accommodated in the second portion 120, and the second surface 300a can be prevented from being worn.

With continued reference to fig. 14, the first suction part 300 has a third surface 300b and a fourth surface 300c opposite to each other, the third surface 300b is disposed adjacent to the first portion 110 relative to the fourth surface 300c, the third surface 300b is arc-shaped, a curved curvature center of the third surface 300b faces a side away from the fourth surface 300c, and the third surface 300b forms an avoiding space 111 at a side adjacent to the first portion 110.

Specifically, the third surface 300b is recessed toward a side adjacent to the fourth surface 300c, so that an avoiding space 111 can be formed at a side adjacent to the first portion 110, when the lens 21 of the projection optical engine 20 is accommodated in the first portion 110, the avoiding space 111 is used for avoiding the lens 21 of the projection optical engine 20, on one hand, abrasion of the first adsorption portion 300 on the lens 21 of the projection optical engine 20 can be avoided, on the other hand, the area of the first adsorption portion 300 adjacent to the lens 21 of the projection optical engine 20 can be increased, so that a larger adsorption area can be provided for adsorbing foreign matters on the lens 21, and the effect of treating the foreign matters on the lens 21 is improved.

With reference to fig. 15, an embodiment of the present application further provides a projection apparatus 1, where the projection apparatus 1 includes a projector 20 and a protection component 10 provided in any of the above embodiments, the protection component 10 is mounted on the projector 20, the projector 20 has a support 22 and a lens 21 mounted on the support 22, and the protection component 10 is sleeved on the support 22 to protect the lens 21.

The protection assembly 10 and the projector engine 20 are detachably connected. The protection component 10 covers the lens 21 of the optical projection engine 20 to protect the lens 21 of the optical projection engine 20 from foreign objects. The foreign matter can be water vapor, fog, dust and the like.

Specifically, in one embodiment, the outer side of the support 22 has an external thread, and the inner side of the fastening portion 100 has an internal thread, and the external thread and the internal thread form a fit therebetween, so as to sleeve the fastening portion 100 on the support 22. It is understood that in other embodiments, the seat 22 and the buckling portion 100 can be detachably connected by other means, such as a snap connection, a latch connection, a screw connection, etc.

The embodiment of the present invention provides a projection apparatus 1, which includes a protection component 10 and a projection optical machine 20, wherein the protection component 10 is used for protecting a lens 21 of the projection optical machine 20, the protection component 10 includes a buckling portion 100, a connecting portion 200 and a first absorption portion 300, the buckling portion 100 has a receiving hole 100a, the buckling portion 100 is used for buckling on a support 22 of the lens 21 of the projection optical machine 20, so that the lens 21 of the projection optical machine 20 is received in the receiving hole 100a, the buckling portion 100 has a side wall 100b, the side wall 100b has a mounting groove 100c, the connecting portion 200 is located in the mounting groove 100c, the first absorption portion 300 is attached to the connecting portion 200, the first absorption portion 300 covers an opening of the receiving hole 100a of the buckling portion 100, the connecting portion 200 is used for sealing and connecting the first absorption portion 300 and the buckling portion 100, the first adsorption part 300 is used for adsorbing foreign matters on the lens 21 of the optical projection engine 20 to protect the lens 21 of the optical projection engine 20. The first absorbing part 300 is hermetically connected with the fastening part 100 through the connecting part 200, when the fastening part 100 is fastened on the support 22 of the lens 21 of the optical projection engine 20, the lens 21 of the optical projection engine 20 is accommodated in the accommodating hole 100a of the fastening part 100, at this time, the first absorbing part 300 is arranged adjacent to the lens 21 of the optical projection engine 20, and the first absorbing part 300 can absorb foreign matters on the lens 21 of the optical projection engine 20, so that waterproof, antifogging and dustproof protection can be performed on the lens 21 of the optical projection engine 20, and the projection quality of the projection device 1 can be improved.

The embodiments of the present invention have been described in detail, and the principles and embodiments of the present invention have been explained herein using specific embodiments, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims (10)

1. The utility model provides a protective assembly for protect the camera lens of projection ray apparatus, a serial communication port, protective assembly includes buckling parts, connecting portion and first absorption portion, the buckling parts has the accepting hole, the buckling parts is used for the lock to be in on the support of the camera lens of projection ray apparatus, so that the camera lens of projection ray apparatus accept in the accepting hole, the buckling parts has the lateral wall, the mounting groove has on the lateral wall, connecting portion are located in the mounting groove, first absorption portion laminate in connecting portion, just first absorption portion lid fits the opening part of the accepting hole of buckling parts, connecting portion be used for with first absorption portion with buckling parts sealing connection, first absorption portion is used for adsorbing foreign matter on the camera lens of projection ray apparatus, with it is right the camera lens of projection ray apparatus forms the protection.

2. The protection assembly of claim 1, wherein the fastening portion comprises a first portion and a second portion connected to each other, the first portion has a first through hole, the second portion has a second through hole, the first through hole and the second through hole are at least partially disposed opposite to each other, the first through hole and the second through hole form the receiving hole, the first through hole is used for receiving a support of a lens of the projection optical engine, and a side wall of the second portion facing away from the first portion has the mounting groove.

3. The shield assembly of claim 2 wherein a side wall of the second portion facing away from the first portion further has a retaining groove for receiving the first suction portion, the first suction portion having a radial dimension greater than a radial dimension of the connecting portion.

4. The protective assembly according to claim 3, wherein a protective foam is disposed between the first absorbing portion and the second portion, the protective foam is at least partially disposed in the limiting groove, the protective assembly further comprises a sealing colloid, the sealing colloid is at least partially disposed in the limiting groove, the sealing colloid covers the protective foam, the sealing colloid is used for fixing the protective foam between the first absorbing portion and the second portion, the protective foam is used for absorbing water vapor, and the protective foam is used for shock absorption and protection of the protective assembly.

5. The shield assembly of any one of claims 2 to 4 wherein the radial dimension of said second portion is greater than the radial dimension of said first portion, said second portion having a first connecting face and a second connecting face joined thereto, said first connecting face being joined to said first portion, said second connecting face being circumferentially disposed about said first portion, said second connecting face being a tapered face, said second connecting face increasing in radial dimension from a side of said first portion toward a side adjacent said second portion.

6. The protection assembly of claim 2, wherein the second portion has an inner sidewall, the inner sidewall is surrounded to form the second through hole, the inner sidewall has an accommodating groove, the protection assembly further comprises a second absorption portion, the second absorption portion comprises a plurality of absorption members arranged in an annular array, the absorption members are located in the accommodating groove, and the second absorption portion and the first absorption portion cooperate with each other to absorb the foreign object on the lens of the projection exposure apparatus.

7. The shield assembly of claim 2 wherein said second portion has a first surface facing away from said first portion, said first absorbent portion having a second surface facing away from said first portion, said second surface being disposed adjacent said first portion relative to said first surface.

8. The fender assembly of claim 2, wherein the first absorbent portion has third and fourth opposing surfaces, the third surface being disposed adjacent the first portion relative to the fourth surface, the third surface being arcuate with a center of curvature of the third surface facing a side facing away from the fourth surface, the third surface defining an evacuation space adjacent the first portion.

9. A projection apparatus, comprising a projection optical engine and a protection component according to any one of claims 1 to 8, wherein the protection component is mounted on the projection optical engine, the projection optical engine has a support and a lens mounted on the support, and the protection component is sleeved on the support to protect the lens.

10. The projection device of claim 9, wherein an outer side of the support has an external thread, and an inner side of the fastening portion has an internal thread, and the external thread and the internal thread form a fit therebetween to fit the fastening portion over the support.

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