Light guide structure
By combining the light guide column of the light guide structure with the reflective film, the problems of optical fiber occupying ports and increasing costs are solved, thus achieving product simplicity and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-03
AI Technical Summary
In existing technologies, optical fibers occupy the camera's flash signal port, increasing costs and resulting in a cluttered product.
It adopts a light guide structure, including a combination of transparent light guide pillars and reflective film, and uses the light guide pillars to conduct the flash light to achieve the focusing lamp's extinguishing action, thus avoiding the use of optical fibers.
It simplifies the product structure, reduces costs, avoids fiber optic tangling, and improves product neatness.
Smart Images
Figure CN224080049U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of camera equipment technology, and specifically to a light guide structure. Background Technology
[0002] When taking photos underwater, the camera's flash is usually used for supplemental lighting. Before pressing the shutter to take the picture, a focusing light is often needed to illuminate the subject so that the camera can focus smoothly. When the shutter is pressed, the external flash provides supplemental lighting, and the focusing light source is turned off. The action of turning off the focusing light is triggered by the light from the external flash, which is received by the focusing light's fiber optic port.
[0003] In existing technologies, one end of the optical fiber is typically inserted into a fiber optic port, while the other end is connected to the flash unit, guiding the flash light into the port to achieve synchronization between the flash and the focus lamp. However, the use of an optical fiber occupies the camera's flash signal port, increases costs, and can also become tangled around the bracket and focus lamp, making the entire system more cluttered. Utility Model Content
[0004] This application provides a light guide structure designed to solve the problems of existing technologies that use optical fibers, such as occupying camera flash signal ports, increasing costs, and making the entire product more cluttered.
[0005] In one embodiment, a light guide structure is provided, comprising: a light guide column with a certain degree of transparency; the bottom end of the light guide column is used to connect to a focusing lamp, and the top end of the light guide column is provided with an inclined surface, the inclined surface being set at a 45° angle to the axis of the light guide column; a reflective film is attached and fixed to the inclined surface, and the reflective surface of the reflective film is in contact with the inclined surface.
[0006] In one embodiment, a groove is formed on the inclined surface, and the bottom of the groove is flat, with the reflective film attached to the bottom of the groove.
[0007] In one embodiment, the top of the light guide post is an arc surface, and the side surface of the light guide post and the inclined surface transition through the arc surface.
[0008] In one embodiment, an annular groove is formed on the lower side of the light guide post, and the annular groove extends circumferentially along the light guide post.
[0009] In one embodiment, the number of annular grooves is two, and the two annular grooves are arranged at an axial interval along the light guide post.
[0010] In one embodiment, an annular groove is also formed on the side of the light guide post, and the side of the groove is connected to the annular groove.
[0011] In one embodiment, a first limiting groove is provided at the lower part of the light guide post. The first limiting groove extends along the axial direction of the light guide post. One end of the first limiting groove is connected to the bottom end face of the light guide post, and the other end passes through the annular groove.
[0012] In one embodiment, the bottom end face of the light guide post is perpendicular to the axis of the light guide post.
[0013] In one embodiment, a second limiting groove is provided at the lower part of the light guide post. The second limiting groove is arranged along the circumference of the light guide post, and the second limiting groove is spaced apart from the annular groove.
[0014] In one embodiment, the light guide post is a one-piece molded component.
[0015] The beneficial effects of this application are:
[0016] By inserting the bottom end of the light guide column into the fiber optic hole of the focusing lamp, the light emitted by the flash lamp will pass through the light guide column and be reflected by the reflective film on the inclined surface. The light then propagates along the axial direction of the light guide column and passes through the bottom surface of the light guide column to the corresponding photosensitive element at the bottom of the fiber optic hole, ultimately realizing the corresponding (light-off) action of the focusing lamp.
[0017] Using a light guide avoids the need for optical fibers. Furthermore, the light guide's simple structure and small size prevent optical fibers from getting tangled in the bracket and focus lamp, making the entire product more streamlined. Since a light guide is essentially a small section of optical fiber, it is significantly less expensive than a long optical fiber. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the light guide column structure in one embodiment of this application;
[0020] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure along direction A;
[0021] Labels for each item in the figure:
[0022] 1. Light guide post; 101. Bottom end; 102. Top end; 103. Sloping surface; 104. Groove; 105. Axis; 106. Arc surface; 107. Annular groove; 108. Groove body; 109. First limiting groove; 110. Second limiting groove; 2. Reflective film. Detailed Implementation
[0023] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application. Similarly, the following examples are only some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0027] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0028] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0029] This application proposes improvements and innovations, and presents the following embodiments.
[0030] In some implementations, please refer to Figures 1 to 2 A light guide structure is provided, including: a light guide column 1 with a certain transparency; the bottom end of the light guide column 1 is used to connect to a focusing lamp, and the top end 102 of the light guide column 1 is provided with an inclined surface 103, the inclined surface 103 is set at a 45° angle to the axis 105 of the light guide column 1; a reflective film 2 is attached and fixed on the inclined surface 103, and the reflective surface of the reflective film 2 is in contact with the inclined surface 103.
[0031] By inserting the bottom end of the light guide post 1 into the fiber optic hole of the focusing lamp, the light emitted by the flash lamp will pass through the light guide post 1 and be reflected by the reflective film on the inclined surface 103. The light then propagates along the axial direction of the light guide post 1 and passes through the bottom surface of the light guide post 1 to the corresponding photosensitive element at the bottom of the fiber optic hole, thus realizing the corresponding (light-off) action of the focusing lamp.
[0032] The use of light guide post 1 avoids the need for optical fiber. Furthermore, light guide post 1 has a simple structure and small size, preventing optical fiber from getting tangled in the bracket and focusing lamp, thus making the entire product more streamlined. Light guide post 1 is essentially a small section of optical fiber, therefore it is less expensive than a long optical fiber.
[0033] In one embodiment, a groove 104 is formed on the inclined surface 103, and the bottom of the groove 104 is flat. The reflective film 2 is attached to the bottom of the groove 104. The groove 104 facilitates the laying of the reflective film 2 and effectively prevents the reflective film 2 from slipping off the inclined surface 103.
[0034] In one embodiment, the top end 102 of the light guide post 1 is an arc surface 106, and the side surface and the inclined surface 103 of the light guide post 1 are transitioned through the arc surface 106. The arc surface 106 at the top end 102 of the light guide post 1 can blunt the connection between the side surface and the inclined surface 103 of the light guide post 1, reduce the likelihood of greater damage caused by bumps at the connection between the side surface and the inclined surface 103 of the light guide post 1, and reduce the possibility of cuts to the human body at the connection between the side surface and the inclined surface 103 of the light guide post 1 during use.
[0035] In one embodiment, an annular groove 107 is formed on the lower side of the light guide post 1, and the annular groove 107 extends circumferentially along the light guide post 1. The annular groove 107 is used for better installation of the sealing ring, and the annular groove 107 has a better limiting effect on the sealing ring, thereby improving the sealing effect between the light guide post 1 and the optical fiber hole.
[0036] In one embodiment, there are two annular grooves 107, and the two annular grooves 107 are arranged at an axial distance along the light guide post 1. The two annular grooves 107 allow for the installation of two sealing rings, thus improving the sealing effect between the light guide post 1 and the fiber optic hole.
[0037] In one embodiment, an annular groove 108 is also provided on the side of the light guide post 1, and the side of the groove 108 communicates with the annular groove 107. The groove 108 is provided so that the limiting protrusion on the inner wall of the fiber optic hole can be inserted, thereby restricting the axial movement of the light guide post 1 in the fiber optic hole and improving the firmness of the connection between the light guide post 1 and the fiber optic hole.
[0038] In one embodiment, a first limiting groove 109 is provided at the lower part of the light guide post 1. The first limiting groove 109 extends along the axial direction of the light guide post 1. One end of the first limiting groove 109 is connected to the bottom end face of the light guide post 1, and the other end passes through the annular groove 107. The first limiting groove 109 is provided so that the limiting strip on the inner wall of the fiber optic hole can be inserted, which can limit the relative rotation between the light guide post 1 and the fiber optic hole. Moreover, since the first limiting groove 109 passes through the annular groove 107, when it is necessary to install the sealing ring into the annular groove 107, a rod can be inserted through the sealing ring, with one end of the rod located in the first limiting groove 109. By rotating the rod around the end of the rod that contacts the first limiting groove 109, the sealing ring can be guided to slide better into the annular groove 107. The sealing ring can also be removed from the annular groove 107 by inserting the rod into the first limiting groove 109 and prying the sealing ring.
[0039] In one embodiment, the bottom end face of the light guide post 1 is perpendicular to the axis 105 of the light guide post 1. This perpendicularity facilitates better entry of light into the bottom photosensitive element of the fiber optic hole, preventing light deflection.
[0040] In one embodiment, a second limiting groove 110 is further provided at the lower part of the light guide post 1. The second limiting groove 110 is arranged circumferentially along the light guide post 1 and is spaced apart from the annular groove 107. The second limiting groove 110 allows the limiting protrusion ring, limiting ball, or limiting block on the inner wall of the fiber optic hole to be engaged, thereby restricting the axial movement of the light guide post 1 in the fiber optic hole and improving the firmness of the connection between the light guide post 1 and the fiber optic hole.
[0041] In one embodiment, the light guide post 1 is a one-piece molded part. The one-piece molding of the light guide post 1 improves its structural strength.
[0042] The above are merely optional embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this utility model. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this utility model.
Claims
1. A light guide structure, characterized by, The utility model relates to a light guide column with certain transparency, the bottom end of light guide column is used for connecting with focusing lamp, and the top end of light guide column is equipped with bevel, the bevel is arranged with the axis of light guide column 45 DEG angle, the bevel is pasted fixed with the light reflecting film, and the light reflecting surface of light reflecting film is pasted contact with the bevel. The bevel is provided with a groove, and the bottom of the groove is a flat surface. The light reflecting film is pasted on the bottom of the groove.
2. The light guide structure of claim 1, wherein, The top end of the light guide column is a circular arc surface. The side surface of the light guide column and the bevel are connected through the circular arc surface.
3. The light guide structure of claim 1, wherein, A ring groove is formed on the lower side surface of the light guide column, and the ring groove extends along the circumference of the light guide column.
4. The light guide structure of claim 1, wherein, The number of the ring grooves is two, and the two ring grooves are arranged along the axial direction of the light guide column.
5. The light guide structure of claim 4, wherein, A ring-shaped groove is also formed on the side surface of the light guide column, and the side surface of the groove is communicated with the ring groove.
6. The light guide structure of claim 5, wherein, A first limiting groove is formed on the lower part of the light guide column, and the first limiting groove extends along the axial direction of the light guide column. One end of the first limiting groove is communicated with the bottom end surface of the light guide column, and the other end of the first limiting groove passes through the ring groove.
7. The light guide structure of claim 6, wherein, The bottom end surface of the light guide column is perpendicular to the axis of the light guide column.
8. The light guide structure of claim 7, wherein, A second limiting groove is also formed on the lower part of the light guide column, and the second limiting groove is arranged along the circumference of the light guide column. The second limiting groove is arranged separately from the ring groove.
9. Light guiding structure according to any of claims 4-8, characterized in that The light guide column is an integral molding.
10. The light guide structure of claim 9, wherein,