Lens dustproof structure of laser projector

Abstract

The utility model relates to a lens dustproof structure of laser projector, including the shell that has the through -hole of front end setup, set up in the optical machine module lens in the shell still include lens ornament ring, first dustproof bubble cotton, lens support and second dustproof bubble cotton, the lens ornament ring sets up in the through -hole, the lens support sets up in the shell and is located lens ornament ring rear, first dustproof bubble cotton sets up between the front end of lens support and the rear end of lens ornament ring, the optical machine module lens is located lens support rear side, second dustproof bubble cotton sets up between optical machine module lens front end and lens support rear end, and second dustproof bubble cotton has precompression amount. The utility model structure design simple and ingenious, can guarantee and the outside is isolated to reach dustproof effect when the optical machine lens module telescopes forward or backward, production assembly simple, easy operation, structure cost is low, very suitable for popularization and application.

Description

Technical Field

[0001] This utility model relates to a dustproof structure for the lens of a laser projector. Background Technology

[0002] Smart projectors are a type of intelligent electronic product that has emerged in recent years. They are projectors with expandable hardware and software, human-computer interaction, and multimedia connectivity, enabling services such as web search, online video, video-on-demand (VOD), digital music, and online educational resources. Smart projectors are becoming the third information access terminal after computers and mobile phones, allowing users to access the information they need anytime; smart projectors are also becoming a type of intelligent device.

[0003] Laser projectors contain lenses, which require high dust resistance. If dust enters the lens or the device itself, it can affect image quality and heat dissipation. However, when the lens is focused or tilted, it moves relative to the housing, changing the distance between them. This allows dust to easily enter through this gap. Therefore, improvements are necessary to address this technical issue. Utility Model Content

[0004] This utility model addresses the problems existing in the prior art by providing a dustproof structure for the lens of a laser projector. The structure is reasonably designed and effectively improves the dustproof effect when the lens is extended or retracted.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a dustproof structure for a laser projector lens, comprising a housing with a through hole at the front end, an optical engine module lens disposed within the housing, and further comprising a lens trim ring, a first dustproof foam, a lens bracket, and a second dustproof foam. The lens trim ring is disposed within the through hole; the lens bracket is disposed within the housing and located behind the lens trim ring; the first dustproof foam is disposed between the front end of the lens bracket and the rear end of the lens trim ring; the optical engine module lens is disposed behind the lens bracket; and the second dustproof foam is disposed between the front end of the optical engine module lens and the rear end of the lens bracket, the second dustproof foam having a pre-compression amount.

[0006] Furthermore, the front end of the lens trim extends out of the through hole and is snapped together with the front end face of the housing.

[0007] Furthermore, an aluminum decorative ring is provided on the inner rear end of the lens bracket.

[0008] Furthermore, an optical lens is provided on the inner rear end of the lens trim ring.

[0009] Furthermore, the lens bracket is secured to the housing with screws.

[0010] Furthermore, both the first and second dustproof foams are ring-shaped.

[0011] Furthermore, the first dustproof foam is bonded and fixed to the rear end face of the lens ring.

[0012] Furthermore, the second dustproof foam is bonded and fixed to the rear end face of the lens bracket.

[0013] Compared with the prior art, the present invention has the following advantages: The present invention has a simple and ingenious structural design, which can ensure that the optical engine lens module is isolated from the outside world and achieves a dustproof effect when it extends or retracts forward or backward. It is simple to produce and assemble, easy to operate, and has a low structural cost, making it very suitable for widespread application. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main cross-sectional structure of an embodiment of this utility model;

[0015] Figure 2 yes Figure 1 Enlarged diagram of point A in the diagram;

[0016] Figure 3 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "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 utility model 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 utility model.

[0019] like Figures 1-3As shown, this utility model discloses a dustproof structure for a laser projector lens, comprising a housing 1 with a through hole 2 at the front end, and an optical engine module lens 3 disposed within the housing 1, with the optical engine module lens directly opposite the through hole. The housing serves as the outer casing of the entire laser projector. The dustproof structure also includes a lens ring 4, a first dustproof foam 5, a lens support 6, and a second dustproof foam 7. The lens ring 4 is disposed within the through hole 2. The lens support 6 is disposed within the housing 1 and located behind the lens ring 4. The first dustproof foam 5 is disposed between the front end of the lens support 6 and the rear end of the lens ring 4. The optical engine module lens 3 is located behind the lens support 6. The second dustproof foam 7 is disposed between the front end of the optical engine module lens 3 and the rear end of the lens support 6. The second dustproof foam 7 has a pre-compression amount, ensuring dustproof isolation from the outside environment when the lens extends or retracts forward or backward. This dustproof structure is simple and ingenious in design. It can ensure that the optical engine lens module is isolated from the outside world and achieves a dustproof effect when it is extended or retracted forward or backward. It is simple to produce and assemble, easy to operate, and has low structural cost, making it very suitable for widespread application.

[0020] In this embodiment, the lens trim ring 4 extends through the through hole in the front and rear directions, and the front end of the lens trim ring 4 extends out of the through hole and is connected to the front end face of the outer shell 1 by four buckles, so that the lens trim ring is fastened to the outer shell.

[0021] In this embodiment, an aluminum decorative ring 8 is fixedly provided on the inner stepped surface of the rear end of the lens bracket 6 by adhesive backing.

[0022] In this embodiment, an optical lens 9 is attached to the inner stepped surface of the rear end of the lens ring 4 using adhesive.

[0023] In this embodiment, the lens bracket 6 is locked to the outer shell 1 by screws. At this time, the lens bracket presses on the first dustproof foam to form a dustproof closed loop.

[0024] In this embodiment, both the first dustproof foam 5 and the second dustproof foam 7 are ring-shaped.

[0025] In this embodiment, the first dustproof foam 5 is bonded and fixed to the rear end face of the lens trim ring 4.

[0026] In this embodiment, the second dustproof foam 7 is bonded and fixed to the rear end face of the lens bracket 6.

[0027] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then, unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured using a casting process) (except where it is obviously impossible to use an integral forming process).

[0028] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0029] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A dustproof structure for a laser projector lens, comprising a housing with a through hole at the front end and an optical engine module lens disposed within the housing, characterized in that: It also includes a lens bead ring, a first dustproof foam, a lens bracket, and a second dustproof foam. The lens bead ring is disposed within a through hole. The lens bracket is disposed within the housing and located behind the lens bead ring. The first dustproof foam is disposed between the front end of the lens bracket and the rear end of the lens bead ring. The optical engine module lens is disposed behind the lens bracket. The second dustproof foam is disposed between the front end of the optical engine module lens and the rear end of the lens bracket. The second dustproof foam has a pre-compression amount.

2. The lens dustproof structure of a laser projector according to claim 1, characterized in that: The front end of the lens trim extends out of the through hole and is snapped together with the front face of the housing.

3. The lens dustproof structure of a laser projector according to claim 1, characterized in that: An aluminum decorative ring is provided on the inner rear end of the lens bracket.

4. The lens dustproof structure of a laser projector according to claim 1, characterized in that: An optical lens is provided on the inner rear end of the lens ring.

5. The lens dustproof structure of a laser projector according to claim 1, characterized in that: The lens bracket is secured to the housing with screws.

6. The lens dustproof structure of a laser projector according to claim 1, characterized in that: Both the first and second dustproof foams are ring-shaped.

7. The lens dustproof structure of a laser projector according to claim 1, characterized in that: The first dustproof foam is bonded and fixed to the rear end face of the lens ring.

8. The lens dustproof structure of a laser projector according to claim 1, characterized in that: The second dustproof foam is bonded and fixed to the rear end face of the lens bracket.

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