Split type lens

Abstract

The utility model relates to the technical field of lenses, in particular to a split type lens which comprises an end lens part, a side lens part is arranged on the outer side of the end lens part, a cementing layer is arranged between the side lens part and the end lens part, a center lens part is arranged on the side face of the end lens part, and the center lens part is arranged on the side face of the end lens part. And the refractive index of the cementing layer is the same as that of the end lens part. According to the utility model, two independent injection molding devices are used for production, one injection molding device is used for injection molding of the end lens part, the other injection molding device is used for injection molding of the rest lens parts, and finally the end lens part and the rest lens parts are glued through the gluing layer. For some lenses with unsmooth edges, for example, the edge of the top lens part obviously protrudes outwards relative to the edge of the bottom lens part, and the thickness of the top lens part is large, compared with a lens integrally formed through injection molding, the split type lens is higher in production efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lens technical field especially relates to a split type lens. BACKGROUND

[0002] With optical refraction and focusing principle, the scattered light of bulb can be converged into more parallel light beam, so that light is more concentrated, and illumination effect is effectively improved. In the use of flashlight, outdoor camping enthusiasts use the lens with the principle, so that light can illuminate the surrounding more far and more evenly in the dark field, and it is convenient to find articles and distinguish path; the principle is used in automobile headlamp, so that the driver can clearly see the road conditions, such as uneven road surface, obstacles and pedestrians, in the night or bad weather, so that visual fatigue is greatly reduced, and the probability of accident is reduced.

[0003] For the related technology in the above, the defects of the existing lens are that for some edge unsmooth lenses, such as the top lens part edge is obviously outward convex relative to the bottom lens part edge, and the thickness of the top lens part is thin, more manpower is consumed in demolding, and the working efficiency is low, therefore, the utility model provides a split type lens. UTILITY MODEL CONTENT

[0004] The purpose of the present application is to provide a split type lens to solve the problem of the above background art that for some edge unsmooth lenses, such as the top lens part edge is obviously outward convex relative to the bottom lens part edge, and the thickness of the top lens part is thin, more manpower is consumed in demolding, and the working efficiency is low.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a split type lens, comprising an end lens part, the outer side of the end lens part is provided with a side edge lens part, a glue layer is arranged between the side edge lens part and the end lens part, the side surface of the end lens part is provided with a center lens part, the refractive index of the glue layer is the same as that of the end lens part, one half of the inner wall side surface of the side edge lens part is provided with a first arc surface, and the other half of the inner wall side surface of the side edge lens part is provided with a second arc surface.

[0006] Preferably, the edge of the glue layer is flush with the edge of the side edge lens part.

[0007] Preferably, the thickness of the glue layer is 0.2mm-0.6mm.

[0008] Preferably, the outer side of the center lens part is provided with a curved surface.

[0009] Preferably, the outer side of the end lens part is fixedly connected with a connecting block, and the outer side of the side edge lens part is fixedly connected with a fixed block matched with the connecting block.

[0010] Preferably, the outer side of the connecting block is fixedly connected with a clamping block, and the outer side of the fixed block is provided with a clamping groove matched with the clamping block.

[0011] In conclusion, the present application has the following technical effects and advantages:

[0012] In the present application, two independent injection molding devices are used for production, one of which is used for injection molding of the end lens part, and the other is used for injection molding of the remaining lens parts. Finally, the end lens part and the remaining lens parts are glued together by the adhesive layer. Since the refractive index of the adhesive layer is the same as that of the end lens part, the propagation path of light will not be changed. For some lenses with uneven edges, such as the top lens part whose edge is obviously outwardly convex relative to the bottom lens part edge, and the lens structure with a relatively thick top lens part, the production efficiency of the split lens is higher than that of the injection molded integrated lens. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0014] Figure 1 It is a first perspective view of the structure of the present application.

[0015] Figure 2 It is a second perspective view of the structure of the present application.

[0016] Figure 3 It is a structure diagram of the adhesive layer and the center lens part in the present application.

[0017] Figure 4 It is Figure 3 the enlarged structure diagram of A.

[0018] In the figure: 1, end lens part; 2, side lens part; 3, adhesive layer; 4, fixed block; 5, connecting block; 6, first arc surface; 7, second arc surface; 8, center lens part; 9, curved surface; 10, clamping block. DETAILED DESCRIPTION

[0019] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood in a broad sense, for example, "connected" can be fixedly connected, or detachably connected, or integrally connected, can be mechanically connected, or electrically connected, can be directly connected, or indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0021] Embodiment: Reference Figures 1-4 The utility model provides a kind of split lens as shown in the figure, including end lens part 1, end lens part 1 is mainly responsible for the light emitted by bulb preliminary focusing and orientation, so that light can be shot with specific angle.Every side of end lens part 1 is provided with side lens part 2, side lens part 2 is used to widen the illumination range of light, so that the illumination area of bulb is more extensive, glue layer 3 is provided between side lens part 2 and end lens part 1, glue layer 3 plays the role of firm connection end lens part 1 and side lens part 2, simultaneously because its refractive index is same with the refractive index of end lens part 1, can guarantee that light reduces refractive loss when transition between the two, so that light propagation is more smooth, the side of end lens part 1 is provided with center lens part 8, center lens part 8 further fine adjustment to light, let light distribution be more uniform, the edge of glue layer 3 is flush with the edge of side lens part 2, such design is favorable to keep the flatness of lens overall appearance, avoid affecting light propagation and appearance aesthetic feeling because of edge misalignment, the thickness of glue layer 3 is 0.2mm-0.6mm, this thickness can guarantee good gluing effect, and will not affect light propagation because of too thick, the outside of center lens part 8 is provided with curved surface 9, curved surface 9 can be twice refracted and reflected to light, further optimize the shooting angle and distribution of light. The outside of end lens part 1 is fixedly connected with connecting block 5, the outside of side lens part 2 is fixedly connected with fixed block 4 matched with connecting block 5, connecting block 5 and fixed block 4 cooperate with each other, realize the close connection of end lens part 1 and side lens part 2 in structure, the outside of connecting block 5 is fixedly connected with clamping block 10, the outside of fixed block 4 is provided with clamping groove matched with clamping block 10, the cooperation of clamping block 10 and clamping groove further enhances the stability of connection, to prevent displacement of lens parts during driving.

[0022] In the embodiment, the end lens part 1 is injection molded by one of the injection molding devices, the remaining lens parts are injection molded by the other injection molding device, and finally the end lens part 1 and the side lens part 2 are glued by the glue layer 3. Since the refractive index of the glue layer 3 is the same as that of the end lens part 1, the propagation path of light is not changed. For some lenses with non-smooth edges, the production efficiency of the split lens is higher than that of the injection molded integrated lens.

[0023] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included within the scope of the present application.

Claims

1. A split lens comprising an end lens portion (1), characterized in that: The outer side of the end lens part (1) is provided with a side edge lens part (2), a cement layer (3) is arranged between the side edge lens part (2) and the end lens part (1), the side surface of the end lens part (1) is provided with a center lens part (8), the refractive index of the cement layer (3) is the same as that of the end lens part (1), one half of the inner wall side of the side edge lens part (2) is provided with a first arc surface (6), and the other half of the inner wall side of the side edge lens part (2) is provided with a second arc surface (7).

2. The split lens of claim 1, wherein: The edge of the cement layer (3) is flush with the edge of the side edge lens part (2).

3. The split lens of claim 2, wherein: The thickness of the cement layer (3) is 0.2mm-0.6mm.

4. The split lens of claim 1, wherein: The outer side of the center lens part (8) is provided with a curved surface (9).

5. The split lens of claim 4, wherein: The outer side of the end lens part (1) is fixedly connected with a connecting block (5), and the outer side of the side edge lens part (2) is fixedly connected with a fixed block (4) matched with the connecting block (5).

6. The split lens of claim 5, wherein: The outer side of the connecting block (5) is fixedly connected with a clamping block (10), and the outer side of the fixed block (4) is provided with a clamping groove matched with the clamping block (10).

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