CN211372075U

CN211372075U - Light guide structure with uniform light emission and waterproof performance and camera

Info

Publication number: CN211372075U
Application number: CN202020186246.3U
Authority: CN
Inventors: 曾柒; 金清辉
Original assignee: Tvt Digital Technology Co ltd
Current assignee: Tvt Digital Technology Co ltd
Priority date: 2020-02-18
Filing date: 2020-02-18
Publication date: 2020-08-28
Anticipated expiration: 2030-02-18

Abstract

The utility model discloses a light guide structure with waterproof performance and uniform light emission, which comprises a PCB (printed Circuit Board), an LED (light emitting diode) lamp, an annular light guide part, an inner reflective support, an outer reflective support, a uniform light sheet, an upper reflective film, a lower reflective film, an upper waterproof face adhesive, a lower waterproof face adhesive and an upper cover; the LED lamp is installed on the PCB and is electrically connected with the PCB, the annular light guide piece is arranged above the PCB, the light incoming surface of the annular light guide piece corresponds to the LED lamp, the uniform light sheet is arranged above the annular light guide piece, the lower surface of the uniform light sheet corresponds to the light outgoing surface of the annular light guide piece, the inner reflecting support and the outer reflecting support are respectively arranged on the inner periphery and the outer periphery of the annular light guide piece in an annular mode, the lower reflecting film is located below the uniform light sheet and covers the top of the combination position of the annular light guide piece and the inner reflecting support, and the lower waterproof surface glue is located below the uniform light sheet and is connected to the top of the combination position of the annular light guide piece and the outer. The utility model discloses light-directing structure's waterproof performance and dustproof performance have effectively been promoted.

Description

Light guide structure with uniform light emission and waterproof performance and camera

Technical Field

The utility model belongs to the technical field of the electronic product leaded light technique and specifically relates to a light-directing structure and camera of even luminous with waterproof performance that says so.

Background

At present, the light guide structure with uniform annular light emission is mainly used on electronic products (such as intelligent sound boxes or cameras), and good experience can be brought to users through uniform and comfortable optical design. However, the current commonly used light guiding structure has two problems: firstly, the structure size is large and the waterproof performance is poor; and secondly, the use of large-area diffusion materials leads to the reduction of light guide efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's is not enough, provide one kind and can guarantee to have outstanding waterproof performance's light guide structure under the condition of high leaded light efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a light guide structure with waterproof performance and uniform light emission comprises a PCB, an LED lamp, an annular light guide piece, an inner reflective support, an outer reflective support, a light homogenizing sheet, an upper reflective film, a lower reflective film, an upper waterproof surface adhesive, a lower waterproof surface adhesive and an upper cover; the LED lamp is arranged on the PCB and electrically connected with the PCB, the annular light guide piece is arranged above the PCB, the light inlet surface of the annular light guide piece corresponds to the LED lamp, the light homogenizing sheet is arranged above the annular light guide piece, the lower surface part of the light homogenizing sheet corresponds to the light outlet surface of the annular light guide piece, the inner reflecting support and the outer reflecting support are respectively and annularly arranged on the inner periphery and the outer periphery of the annular light guide piece, the lower reflecting film is positioned below the light homogenizing sheet and covers the top of the joint of the annular light guide piece and the inner reflecting support, and the lower waterproof surface adhesive is positioned below the light homogenizing sheet and is hermetically connected to the top of the joint of the annular light guide piece and the outer reflecting support; the upper cover is arranged at the top of the light homogenizing sheet, and the upper waterproof surface glue and the upper reflective film are arranged between the upper cover and the light homogenizing sheet.

The further technical scheme is as follows: the light incident surface of the light guide piece is provided with an incident groove for accommodating the LED lamp.

The further technical scheme is as follows: the number of the LED lamps is 6-9.

The further technical scheme is as follows: the light incident surface and the light emergent surface of the annular light guide piece are both planes; the side surface of the annular light guide part is composed of a plurality of sections of straight surfaces and a plurality of sections of curved surfaces.

The further technical scheme is as follows: the height of the annular light guide is less than 8 mm.

The further technical scheme is as follows: the light homogenizing sheet is made of transparent plastic materials added with diffusant.

The further technical scheme is as follows: the inner reflecting support and the outer reflecting support are made of plastic materials.

The further technical scheme is as follows: the upper waterproof surface glue and the lower waterproof surface glue are both white waterproof double-sided glue.

The further technical scheme is as follows: the upper reflective film and the lower reflective film are made of plastic films with aluminum plated surfaces.

A camera comprises the light guide structure which has the waterproof performance and can uniformly emit light.

Compared with the prior art, the utility model beneficial effect be: the utility model provides a pair of even luminous light-directing structure with waterproof performance glues the top of sealing connection in annular leaded light spare and outer reflection of light support's combination department through waterproof face down to and will go up waterproof face and glue and locate between upper cover and the even light piece, effectively promoted light-directing structure's waterproof performance and dustproof performance. In addition, the inner reflecting support and the outer reflecting support are arranged on the inner periphery and the outer periphery of the annular light guide piece and reflect side light of the annular light guide piece, so that most of the light is transmitted to the light emitting surface of the annular light guide piece, most of the light entering the light homogenizing sheet through the light emitting surface of the annular light guide piece is transmitted to the peripheral annular region of the light homogenizing sheet, and the rest of the light enters the light homogenizing sheet again under the reflection action of the upper reflecting film, the lower reflecting film, the upper waterproof face glue and the lower waterproof face glue and is transmitted to the peripheral annular region of the annular light guide piece, so that the light loss energy is smaller, and the emitted light is more uniform.

The foregoing is a summary of the present invention, and other objects, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments, which is provided for the purpose of illustration and understanding of the present invention.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a light guide structure with uniform light emission and waterproof properties according to the present invention;

fig. 2 is a cross-sectional view of an embodiment of a light guide structure with uniform light emission and waterproof properties according to the present invention;

fig. 3 is a schematic light path diagram of an embodiment of a light guide structure with uniform light emission and waterproof properties according to the present invention;

fig. 4 is a schematic structural diagram of an embodiment of the camera of the present invention.

Reference numerals

1. A PCB board; 11. an LED lamp; 2. an outer reflective support; 3. an annular light guide; 4. an outer reflective support; 5. a lower reflective film; 6. a waterproof surface adhesive is arranged; 7. light homogenizing; 8. an upper reflective film; 9. applying waterproof surface glue; 10. an upper cover; 100. a camera.

Detailed Description

In order to more fully understand the technical content of the present invention, the technical solution of the present invention will be further described and illustrated with reference to the following specific embodiments, but not limited thereto.

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 those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "secured" are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," some embodiments, "" an example, "" a specific example, "" or "some examples," or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

The utility model provides a light guide structure with waterproof performance and uniform light emission, please refer to fig. 1 and 2, which comprises a PCB (printed circuit board) 1, an LED lamp 11, an annular light guide member 3, an inner reflective support, an outer reflective support 42, a light uniformizing sheet 7, an upper reflective film 8, a lower reflective film 5, an upper waterproof surface glue 9, a lower waterproof surface glue 6 and an upper cover 10; the LED lamp 11 is arranged on the PCB 1 and electrically connected with the PCB 1, the annular light guide member 3 is arranged above the PCB 1, the light inlet surface of the annular light guide member corresponds to the LED lamp 11, the light homogenizing sheet 7 is arranged above the annular light guide member 3, the lower surface part of the light homogenizing sheet corresponds to the light outlet surface of the annular light guide member 3, the inner light reflecting support and the outer light reflecting support 42 are respectively and annularly arranged on the inner periphery and the outer periphery of the annular light guide member 3, the lower light reflecting film 5 is arranged below the light homogenizing sheet 7 and covers the top of the joint of the annular light guide member 3 and the inner light reflecting support, and the lower waterproof surface glue 6 is arranged below the light homogenizing sheet 7 and is hermetically connected to the top of the joint of the annular light guide member 3 and the outer; the upper cover 10 is arranged at the top of the light homogenizing sheet 7, and the upper waterproof surface glue 9 and the upper reflective film 8 are both arranged between the upper cover 10 and the light homogenizing sheet 7.

The LED lamp 11 is turned on or off through the PCB board 1. Since more LED lamps 11 are less beneficial to improve the uniformity of the emitted light, and the cost is increased, it is preferable that the number of the LED lamps 11 is 6-9. Through the top of waterproof surface glue 6 sealing connection in annular leaded light 3 and outer reflection of light support 42's combination department down to and locate upper cover 10 and even light piece 7 with last waterproof surface glue 9 between, effectively promoted light-directing structure's waterproof performance and dustproof performance.

Referring to fig. 3, fig. 3 is a schematic diagram of a light path of a light guiding structure, in which an inner reflective support and an outer reflective support 42 are disposed on the inner periphery and the outer periphery of an annular light guiding member 3, and the inner reflective support and the outer reflective support 42 reflect side light of the annular light guiding member 3, so that most of the light is transmitted to a light emitting surface of the annular light guiding member 3, most of the light entering a light homogenizing plate 7 through the light emitting surface of the annular light guiding member 3 is transmitted to a peripheral annular region thereof, and at least part of the light reenters the light homogenizing plate 7 under the reflection action of an upper reflective film 8, a lower reflective film 5, an upper waterproof surface glue 9 and a lower waterproof surface glue 6 and is transmitted to the peripheral annular region of the annular light guiding member 3, thereby reducing energy lost by the light and making the emitted light more uniform.

In this embodiment, the light incident surface of the light guide member is provided with an incident groove (not shown) for accommodating the LED lamp 11. Through the incident recess that sets up, not only make the light of LED lamp 11 can be better conduct to annular light pipe 3, can make holistic structure compacter moreover.

Preferably, the LED lamp 11 is a plane with both the light incident surface and the light emitting surface of the annular light guide member 3, so as to facilitate light transmission. The side surface of the annular light guide member 3 is composed of a plurality of straight surfaces and a plurality of curved surfaces. Preferably, the height of the annular light guide 3 is less than 8 mm.

Preferably, the light uniformizing sheet 7 is made of transparent plastic material added with a diffusing agent, and the diffusion angle is 10-20 degrees, so as to be beneficial to both uniformity and efficiency.

Preferably, the inner and outer reflective supports 42 are both plastic and have mirror surfaces.

Preferably, the upper waterproof surface glue 9 and the lower waterproof surface glue 6 are both white waterproof double-sided glue, so as to be beneficial to improving the reflection efficiency.

Preferably, the upper reflective film 8 and the lower reflective film 5 are made of plastic films with aluminum plated surfaces. The reflection of the upper reflective film 8 and the lower reflective film 5 is more than 95% and the upper reflective film and the lower reflective film are completely opaque, so that the reflection efficiency and the shading are improved.

The present invention further provides a camera, please refer to fig. 4, in which the camera 100 includes the above-mentioned light guiding structure with waterproof property and uniform light emission.

The technical content of the present invention is further described by the embodiments only, so that the reader can understand it more easily, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A light guide structure with waterproof performance and uniform light emission is characterized by comprising a PCB (printed Circuit Board), an LED (light emitting diode) lamp, an annular light guide piece, an inner reflective support, an outer reflective support, a light homogenizing piece, an upper reflective film, a lower reflective film, an upper waterproof surface adhesive, a lower waterproof surface adhesive and an upper cover; the LED lamp is arranged on the PCB and electrically connected with the PCB, the annular light guide piece is arranged above the PCB, the light inlet surface of the annular light guide piece corresponds to the LED lamp, the light homogenizing sheet is arranged above the annular light guide piece, the lower surface part of the light homogenizing sheet corresponds to the light outlet surface of the annular light guide piece, the inner reflecting support and the outer reflecting support are respectively and annularly arranged on the inner periphery and the outer periphery of the annular light guide piece, the lower reflecting film is positioned below the light homogenizing sheet and covers the top of the joint of the annular light guide piece and the inner reflecting support, and the lower waterproof surface adhesive is positioned below the light homogenizing sheet and is hermetically connected to the top of the joint of the annular light guide piece and the outer reflecting support; the upper cover is arranged at the top of the light homogenizing sheet, and the upper waterproof surface glue and the upper reflective film are arranged between the upper cover and the light homogenizing sheet.

2. The light guide structure with uniform light emission and waterproof performance as claimed in claim 1, wherein the light incident surface of the light guide member is provided with an incident groove for accommodating the LED lamp.

3. The light guide structure with uniform light emission and waterproof performance of claim 1, wherein the number of the LED lamps is 6-9.

4. The light guide structure with uniform light emission and waterproof performance of claim 1, wherein the light incident surface and the light emitting surface of the annular light guide member are both planar; the side surface of the annular light guide part is composed of a plurality of sections of straight surfaces and a plurality of sections of curved surfaces.

5. The light guide structure with uniform light emission and waterproof properties of claim 1, wherein the height of the annular light guide member is less than 8 mm.

6. The light guide structure with uniform light emission and waterproof performance as claimed in claim 1, wherein the light homogenizing sheet is made of transparent plastic material with a diffusing agent added.

7. The light guide structure with uniform illumination and waterproof properties as claimed in claim 1, wherein the inner and outer reflective supports are made of plastic.

8. The light guide structure with uniform light emission and waterproof properties as claimed in claim 1, wherein the upper waterproof top tape and the lower waterproof top tape are white waterproof double-sided tapes.

9. The light guide structure with uniform light emission and waterproof performance as claimed in claim 1, wherein the upper and lower reflective films are made of plastic film with aluminum plated surface.

10. A camera comprising a uniformly light-emitting light-guiding structure having water-repellent properties according to any one of claims 1 to 9.