Lens assembly and lens system

Abstract

The utility model provides a lens assembly and a lens system, the lens assembly comprises a general part and a plurality of replacement parts, the general part comprises a first cylinder and a first lens; one of the replacement parts can be selectively mounted at the first assembly end, and each replacement part comprises a second barrel and a second lens; light emitted by the light source enters the second barrel and the first barrel through the light inlet end, and is condensed into parallel light through light effect treatment of the second lens and the first lens, and the parallel light is emitted out of the light outlet end of the first barrel. According to the lens assembly and the lens system, when the lens assembly and the lens system face light source modules with different lamp bead layouts, matched replacement parts can be selected for further adjustment, light emitting uniformity and brightness are corrected and adjusted, the lens assembly does not need to be completely replaced or redesigned, and experience is better.

Description

Technical Field

[0001] The utility model relates to the technical field of photography and videography, in particular to a lens assembly and a lens system. Background Art

[0002] Light source modules such as cinema lights, projection lights, and stage lights have different requirements for the light effects of the light according to different scenes and situations. Therefore, various light effect conversion and control devices such as lens components and light control components are usually installed on the light source modules to meet the different light effect requirements of the light source modules.

[0003] Since the structure and specifications of the accessory interfaces reserved for the light source modules provided by the manufacturers are inconsistent, various types of lens assemblies usually provide different light source interfaces in a targeted manner, and the same specification of lens assemblies also provide multiple compatible models to meet the needs of connecting different light source modules. However, since the layout of the LED lamp beads on the light board in the light source modules of different manufacturers is different, the different arrangement and distribution of the lamp beads will affect the light distribution of the light source module. Therefore, although the light source interface can be adapted, the lens assembly cannot convert the light of the light source module into the required light output, so the entire lens assembly needs to be replaced or redesigned, resulting in huge costs. Utility Model Content

[0004] The purpose of the utility model is to improve the versatility of the lens assembly and to be able to adapt to light source modules with different lamp bead layouts.

[0005] In order to solve the above technical problems, the utility model provides a lens assembly, which includes:

[0006] A universal part, the universal part comprises a first barrel and a first lens, the two ends of the first barrel in the axial direction are through-set, the two ends of the first barrel are respectively a light emitting end and a first assembly end, the first lens is coaxially arranged in the first barrel, and the first lens is used to make the light passing therethrough emit light in parallel;

[0007] A plurality of replacement parts, which can be selectively installed on the first assembly end. Each of the replacement parts includes a second cylinder and a second lens, and the specifications of the second lenses of different replacement parts are different; both ends of the second cylinder are provided with through holes in the axial direction, and the two ends of the second cylinder are respectively a light incident end and a second assembly end. The second assembly end is used for detachably connecting with the first assembly end and making the first cylinder and the second cylinder coaxially arranged; the second lens is coaxially installed in the second cylinder, and the second lens is used for making the light passing through it emit light evenly. The light incident end is used for detachably connecting with a light source, and the light emitted by the light source enters the second cylinder and the first cylinder through the light incident end, so as to be subjected to the light effect processing of the second lens and the first lens, so that the light is condensed into parallel light and emitted from the light emitting end of the first cylinder.

[0008] In an exemplary embodiment of the present disclosure, the first lens includes a first convex lens and a second convex lens, and the first convex lens and the second convex lens are spaced apart and arranged in the first cylinder, and the convex surface of the first convex lens faces the convex surface of the second convex lens.

[0009] In an exemplary embodiment of the present disclosure, the second lens is a convex lens with a convex surface facing the first lens.

[0010] In an exemplary embodiment of the present disclosure, the first assembly end and the second assembly end are nested, a first installation hole is formed on the side wall of the first assembly end, and a second installation hole is formed at a position corresponding to the first installation hole on the side wall of the second assembly end. The first assembly end and the second assembly end are fixedly connected by a fastener passing through the first installation hole and the second installation hole.

[0011] In an exemplary embodiment of the present disclosure, an annular clamping groove is provided on the inner wall of the second cylinder, and the peripheral edge of the second lens is detachably accommodated in the clamping groove.

[0012] In an exemplary embodiment of the present disclosure, the second cylinder includes a cylinder main body and a limiting member. Both ends of the cylinder main body are provided with through holes in the axial direction, and the two ends of the cylinder main body respectively form the light incident end and the second assembly end. An annular limiting portion is coaxially arranged in the cylinder main body. The limiting member is detachably arranged in the cylinder main body. The limiting member is annular, and the limiting member is spaced apart from the limiting portion. An annular clamping groove is formed between the limiting member, the limiting portion and the inner wall of the cylinder main body.

[0013] In an exemplary embodiment of the present disclosure, the barrel body includes a first ring portion, a second ring portion, and a third ring portion. The first ring portion and the third ring portion extend along the axial direction of the barrel body, the second ring portion extends along the radial direction of the barrel body, the inner diameter of the third ring portion is smaller than the inner diameter of the first ring portion, both ends of the second ring portion are respectively connected to one end of the first ring portion and the third ring portion, the second assembly end is formed on the first ring portion, the light incident end is formed on the third ring portion, the outer end of the third ring portion protrudes towards the central axis direction of the barrel body to form the limiting portion, the limiting member is detachably connected to the inner side wall of the second ring portion, and the inner end of the limiting member extends inwards beyond the inner wall of the third ring portion and faces the limiting portion to form the clamping groove.

[0014] In an exemplary embodiment of the present disclosure, a fourth ring portion is provided on the inner wall of the barrel body. The fourth ring portion and the barrel body are coaxially arranged. The limiting portion is provided at one axial end of the fourth ring portion, the limiting member is detachably connected to the other axial end of the fourth ring portion, the inner end of the limiting member extends inwards beyond the inner wall of the fourth ring portion and faces the limiting portion to form the clamping groove.

[0015] The present utility model also provides a lens system, which includes a light emitting lens, a light effect component, and the lens component arranged coaxially. The light effect component includes a third cylinder body and a light effect device for changing the light effect. Both axial ends of the third cylinder body are provided with through holes. One end of the third cylinder body is detachably connected to the light emitting end of the first cylinder body, the other end of the third cylinder body is detachably connected to the light emitting lens, the light effect device is arranged in the third cylinder body, and the light rays emitted by the light source sequentially pass through the second cylinder body, the first cylinder body, the third cylinder body, and the light emitting lens and then are emitted.

[0016] In an exemplary embodiment of the present disclosure, the lens system further includes an installation handle, and the installation handle is connected to the bottom of the first cylinder body for installing the lens system on an external device.

[0017] As can be seen from the above technical solutions, the beneficial effects of the present utility model are as follows:

[0018] In the present application, by dividing the lens component into a relatively fixed and general universal component and a replaceable component that can conveniently replace the second lens, parallel light emission can be achieved through the universal component. When facing light source modules with different lamp bead layouts, an appropriate replaceable component can be selected for further adjustment to correct and adjust the light emission uniformity and brightness to obtain the required light emission effect, without the need to replace or re-design the entire lens component, resulting in lower costs and a better experience. Description of the Drawings

[0019] Figure 1is a cross-section of a lens assembly according to some embodiments Figure 1 .

[0020] Figure 2 is an exploded view of a lens assembly according to some embodiments Figure 1 .

[0021] Figure 3 is a cross-section of a lens assembly according to some embodiments Figure 2 .

[0022] Figure 4 is an exploded view of a lens assembly according to some embodiments Figure 2 .

[0023] Figure 5 is a schematic structural diagram of a lens system according to some embodiments.

[0024] Figure 6 is an exploded view of a lens system according to some embodiments.

[0025] Figure 7 is a cross-sectional view of a lens system according to some embodiments.

[0026] Figure 8 is a schematic structural diagram of a mounting handle in a lens system according to some embodiments.

[0027] The reference numerals are explained as follows:

[0028] General part 1, first cylinder 11, light-emitting end 111, first assembly end 112, first lens 12, first convex lens 121, second convex lens 122, first limiting ring part 123, second limiting ring part 124, third limiting ring part 125, fastener 13, replacement part 2, second cylinder 21, light-incident end 211, second assembly end 212, cylinder main body 213, first ring part 213a, second ring part 213b, third ring part 213c, fourth ring part 213d, limiting part 214, limiting portion 215, second lens 22, light-emitting lens 3, fourth cylinder 31, fifth cylinder 32, lens group 33, light effect assembly 4, third cylinder 41, light effect device 42, mounting handle 5, mounting part 51, rotating part 52, handle 53, fixing hole 54, locking knob 55. Detailed Description of the Preferred Embodiments

[0029] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments, all of which do not depart from the scope of the present invention, and the descriptions and illustrations therein are for illustrative purposes in nature and are not intended to limit the present invention.

[0030] In the description of the present application, it should be understood that in the embodiments shown in the drawings, the indication of the direction or position relationship (such as up, down, left, right, front and back, etc.) is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. When these elements are in the positions shown in the drawings, these descriptions are appropriate. If the description of the positions of these elements changes, then the indication of these directions also changes accordingly.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0032] See Figure 1 and Figure 2 , embodiments of the present application provide a lens assembly, which includes a general component 1 and a plurality of replacement components 2. Among them, the plurality of replacement components 2 can be alternatively installed with the general component 1 to assemble into a lens assembly to adapt to light sources with different lamp bead arrangements.

[0033] In some embodiments, the general component 1 includes a first cylinder 11 and a first lens 12. Both ends of the first cylinder 11 are provided with through holes in the axial direction, so that the inside of the first cylinder 11 is hollow to form a cavity, which is convenient for accommodating the first lens 12.

[0034] In some embodiments, the two ends of the first cylinder 11 are respectively a light-emitting end 111 and a first assembly end 112. The first lens 12 is coaxially arranged in the first cylinder 11. After the light entering from the first assembly end 112 passes through the first lens 12, it is processed by the first lens 12 and then emitted from the light-emitting end 111 of the first cylinder 11. Among them, the first lens 12 is used to make the light passing through it emit in parallel.

[0035] In some embodiments, when a plurality of replacement parts 2 are installed with the common part 1, the plurality of replacement parts 2 can be selectively installed on the first assembly end 112. Each of the replacement parts 2 includes a second cylinder 21 and a second lens 22. Both ends of the second cylinder 21 in the axial direction are provided with through holes, so that the inside of the second cylinder 21 is hollow to form a cavity, which is convenient for accommodating the second lens 22. The two ends of the second cylinder 21 are respectively a light incident end 211 and a second assembly end 212. During installation, the second assembly end 212 is used for detachably connecting with the first assembly end 112 to detachably connect the replacement part 2 with the common part 1, facilitating the installation of different replacement parts 2 as needed. The light incident end 211 is used for detachably connecting with a light source, enabling the lens assembly to be installed on the light source and also facilitating the removal from the light source to replace different replacement parts 2.

[0036] In some embodiments, the second lens 22 is coaxially installed in the second cylinder 21. The second lens 22 is used to make the light passing through it emit light evenly. The light emitted by the light source enters the second cylinder 21 and the first cylinder 11 through the light incident end 211, and after the optical effects of the second lens 22 and the first lens 12, the light is condensed into parallel light and emitted from the light emitting end 111 of the first cylinder 11.

[0037] In some embodiments, by dividing the lens assembly into a common part 1 that is partially common and a replacement part 2 that can conveniently replace the second lens 22, a replacement part 2 suitable for the light source with different lamp bead arrangements can be selected. Through the first lens 12 in the common part 1, parallel light emission can be roughly achieved. Through the second lens 22 in the replacement part 2, the light emitted by the corresponding light source is corrected in terms of uniformity, brightness, etc., so as to obtain the required light emission effect, without the need to replace or re - design the entire lens assembly, with less cost and a better experience.

[0038] It can be understood that the specifications of the second lenses 22 of different replacement parts 2 are different to adapt to light sources with different lamp bead arrangements, so that the light emitted by the light source can be corrected after passing through the second lens 22 to emit light evenly, and then made to emit parallel light through the first lens 12. Among them, the different specifications of each second lens 22 can be different in lens type, size, optical parameters, and the distance from the light source. Correspondingly, the second cylinders 21 in each replacement part 2 can be different to respectively adapt to the corresponding second lenses 22.

[0039] In some embodiments, for the convenience of installing and disassembling the first cylinder 11 and the second cylinder 21, the first assembly end 112 of the first cylinder 11 and the second assembly end 212 of the second cylinder 21 are nested. Among them, the outer diameter of the first assembly end 112 can be smaller than the outer diameter of the second assembly end 212, so that the first assembly end 112 is embedded in the second assembly end 212, or the outer diameter of the first assembly end 112 can be larger than the outer diameter of the second assembly end 212, so that the second assembly end 212 is embedded in the first assembly end 112.

[0040] In some embodiments, a first mounting hole is provided on the side wall of the first assembly end 112, and a second mounting hole is provided at a position corresponding to the first mounting hole on the side wall of the second assembly end 212. The first mounting hole and the second mounting hole can both be through holes, or one of them can be a through hole and the other can be a blind hole. The first assembly end 112 and the second assembly end 212 are fixedly connected by a fastener 13 passing through the first mounting hole and the second mounting hole, thereby fixedly connecting the first cylinder 11 and the second cylinder 21. Among them, the first mounting hole and the second mounting hole can both have internal threads, and the fastener 13 is a screw, so that the first cylinder 11 and the second cylinder 21 are firmly connected.

[0041] In some embodiments, a plurality of first mounting holes and second mounting holes can be provided, which are respectively distributed at intervals along the circumferences of the first assembly end 112 and the second assembly end 212 to improve the connection stability.

[0042] In some other embodiments, internal threads can be provided on the side wall of one of the first assembly end 112 and the second assembly end 212, and external threads can be provided on the side wall of the other, so that the first assembly end 112 and the second assembly end 212 are screwed together when nested.

[0043] In some other embodiments, the first assembly end 112 and the second assembly end 212 can also be connected by means of plugging or buckling to achieve detachable connection.

[0044] In some embodiments, an annular clamping groove is provided on the inner wall of the second cylinder 21, and the peripheral edge of the second lens 22 is detachably received in the clamping groove, so as to clamp the edge of the second lens 22 through the clamping groove, so that the central part of the second lens 22 is not affected and can play a role for light transmission. Among them, the width of the clamping groove should be adapted to the thickness of the peripheral edge of the second lens 22 to clamp the second lens 22 to prevent it from shaking.

[0045] In some embodiments, the second cylinder 21 includes a cylinder main body 213 and a limiting member 214. The cylinder main body 213 is the main structure of the second cylinder 21, and both ends of the cylinder main body 213 in the axial direction are provided with through holes. The two ends of the cylinder main body 213 respectively form the above-mentioned light incident end 211 and the second assembly end 212. A ring-shaped limiting portion 215 is coaxially arranged inside the cylinder main body 213. The limiting portion 215 protrudes inward from the inner wall of the cylinder main body 213. The limiting portion 215 can be a ring plate structure or a ring block structure.

[0046] In some embodiments, the limiting member 214 is detachably arranged inside the cylinder main body 213. The limiting member 214 is ring-shaped and is arranged at an interval from the limiting portion 215, so that a clamping groove is formed by enclosing between the limiting member 214, the limiting portion 215 and the inner wall of the cylinder main body 213. The opposite surfaces of the limiting member 214 and the limiting portion 215 constitute the groove side walls of the clamping groove, and the inner wall of the cylinder main body 213 constitutes the groove bottom wall of the clamping groove.

[0047] In some embodiments, by providing the detachable limiting member 214, before installing the second lens 22, the limiting member 214 is removed from the cylinder main body 213, then the second lens 22 is installed to abut against the limiting portion 215, and finally the limiting member 214 is installed into the cylinder main body 213 to form a clamping groove with the limiting portion 215, and the second lens 22 is clamped therein, realizing the detachable installation of the second lens 22.

[0048] In some embodiments, the limiting member 214 can be a ring plate structure or a ring block structure, and its inner end surface and the inner end surface of the limiting portion 215 can be flush to clamp the second lens 22.

[0049] In some embodiments, the limiting portion 215 can be integrally formed with the cylinder main body 213, or the limiting portion 215 can be a separate component and is detachably installed on the cylinder main body 213.

[0050] In some embodiments, the limiting member 214 can be detachably installed by screwing it onto the inner wall of the cylinder main body 213.

[0051] See Figure 1, in some embodiments, the barrel body 213 may include a first ring portion 213a, a second ring portion 213b, and a third ring portion 213c. The first ring portion 213a and the third ring portion 213c extend along the axial direction of the barrel body 213, the second ring portion 213b extends along the radial direction of the barrel body 213, the inner diameter of the third ring portion 213c is smaller than the inner diameter of the first ring portion 213a, and both ends of the second ring portion 213b are respectively connected to one end of the first ring portion 213a and the third ring portion 213c, such that the cross-section of the barrel body 213 is in a "Z" shape. The above-mentioned second fitting end 212 is formed on the first ring portion 213a for connection with the first fitting end 112, and the above-mentioned light incident end 211 is formed on the third ring portion 213c for connection with the light source.

[0052] In some embodiments, the outer end of the third ring portion 213c protrudes towards the central axis direction of the barrel body 213 to form the above-mentioned limiting portion 215, and the limiting member 214 is detachably connected to the inner side wall of the second ring portion 213b. The inner end of the limiting member 214 extends inwards beyond the inner wall of the third ring portion 213c and faces the limiting portion 215 to form the above-mentioned clamping groove. Since the limiting portion 215 is formed by the outer end of the third ring portion 213c, the second lens 22 can be made closer to the light source. And since the inner diameter of the third ring portion 213c is smaller than that of the first ring portion 213a, the barrel body 213 in this embodiment can be adapted to a relatively small-sized second lens 22.

[0053] In some embodiments, the limiting member 214 is in a ring plate structure and fits on the inner side wall of the second ring portion 213b, with a larger contact area between the two, so that the limiting member 214 is more stably connected and is also more convenient for its fixed installation with the second ring portion 213b. Among them, third installation holes may be provided at corresponding positions on the limiting member 214 and the second ring portion 213b. The third installation holes are screw holes, and the limiting member 214 and the second ring portion 213b are connected and fixed by passing a bolt fastener through the third installation holes. While ensuring the connection stability, it is also convenient for installation and disassembly. The third installation holes may be arranged at intervals along the circumferences of the second ring portion 213b and the limiting member 214 to enhance the connection strength.

[0054] In some embodiments, the inner end of the limiting member 214 may extend towards the limiting portion 215 to form a protruding portion. The protruding portion fits on the inner side wall of the third ring portion 213c, and a clamping groove is formed between the protruding portion and the limiting portion 215 to clamp the second lens 22. By providing the protruding portion, the width of the clamping groove can be reasonably set to be able to clamp the edge position of the second lens 22.

[0055] See Figure 3 and Figure 4, in some other embodiments, a fourth ring portion 213d is provided on the inner wall of the barrel body 213. The fourth ring portion 213d and the barrel body 213 are coaxially arranged. The limiting portion 215 is provided at one end of the fourth ring portion 213d in the axial direction, and the limiting member 214 is detachably connected to the other end of the fourth ring portion 213d in the axial direction. The inner end of the limiting member 214 extends inward beyond the inner wall of the fourth ring portion 213d and faces the limiting portion 215 to form the above clamping groove. By setting the position of the fourth ring portion 213d, the distance between the second lens 22 and the light source can be reasonably controlled, and the barrel body 213 in this embodiment can be adapted to the second lens 22 with a relatively large size.

[0056] Among them, the fourth ring portion 213d can be integrally formed with the inner wall of the barrel body 213. The limiting member 214 is in the structure of an annular plate, which fits on the end wall of the fourth ring portion 213d, so that the contact area between it and the fourth ring portion 213d is large and the connection is more stable. Corresponding positions of the limiting member 214 and the fourth ring portion 213d can be provided with fourth mounting holes, and the fourth mounting holes are threaded holes. The limiting member 214 and the fourth ring portion 213d are fixedly connected by a bolt fastener passing through the fourth mounting holes, which is convenient for the installation and disassembly of the two. The fourth mounting holes can be arranged at intervals along the circumferences of the fourth ring portion 213d and the limiting member 214 to improve the connection strength.

[0057] It can be understood that by setting different structures of the barrel body 213, second lenses 22 with different specification parameters can be correspondingly installed to assemble different replacement parts 2, which correspondingly adapt to light sources with different arrangements of lamp beads. The barrel body 213 is not limited to the above structure and can also be other different structures adapted to the second lens 22.

[0058] In some embodiments, the second lens 22 is a convex lens with the convex surface facing the first lens 12. By setting the second lens 22 in this way, the light rays incident from the light source can be condensed and homogenized, so that the light rays emitted from the second lens 22 are more uniform to adapt to the light rays emitted by different arrangements of lamp beads.

[0059] In some embodiments, the first lens 12 includes a first convex lens 121 and a second convex lens 122. The first convex lens 121 and the second convex lens 122 are arranged at intervals in the first barrel 11. The convex surface of the first convex lens 121 faces the convex surface of the second convex lens 122. After the light rays emitted from the second lens 22 are processed by the optical effects of the first convex lens 121 and the second convex lens 122, parallel light is emitted from the light-emitting end 111 of the first barrel 11.

[0060] In some embodiments, a first limiting ring portion 123 is provided inside the first cylinder 11. The first limiting ring portion 123 is coaxially arranged in the first cylinder 11. One end of the first limiting ring portion 123 abuts against one axial end of the first cylinder 11 and is restricted from moving. The other end of the first limiting ring portion 123 is detachably connected to a second limiting ring portion 124. The second limiting ring portion 124 is detachably connected to the other axial end of the first cylinder 11. The inner ends of the first limiting ring portion 123 and the second limiting ring portion 124 both extend inward to form a first step portion and a second step portion. The opposite ends of the first convex lens 121 and the second convex lens 122 respectively abut against the first step portion and the second step portion to restrict the first convex lens 121 and the second convex lens 122 from moving outward. At the same time, a third limiting ring portion 125 is provided between the edges of the first convex lens 121 and the second convex lens 122. The two ends of the third limiting ring portion 125 respectively abut against the inner edge of the first convex lens 121 and the inner edge of the second convex lens 122 to restrict the first convex lens 121 and the second convex lens 122 from approaching each other, so that the first convex lens 121 and the second convex lens 122 maintain a relatively fixed position.

[0061] In some embodiments, the first limiting ring portion 123 and the second limiting ring portion 124 can be nested. An external thread is formed on the outer wall of one of them, and an internal thread is formed on the inner wall of the other. The first limiting portion 215 and the second limiting portion 215 are threadedly connected. In this way, while the connection is stable, it is also convenient to disassemble, so as to facilitate the installation and debugging of the positions of the first convex lens 121 and the second convex lens 122. Of course, the first limiting ring portion 123 and the second limiting ring portion 124 can also be detachably connected by means of plugging or snap connection.

[0062] See Figures 5 to 8 , the embodiment of the present application also provides a lens system, which includes a light-emitting lens 3, a light effect component 4 and the lens component in the above embodiment that are coaxially arranged. The structure of the lens component has been described above. Since this lens system includes the above lens component, it also has its corresponding beneficial effects and will not be elaborated here.

[0063] Among them, the light effect component 4 includes a third cylinder 41 and a light effect device 42 for changing the light effect. Both ends of the third cylinder 41 in the axial direction are provided with through holes. One end of the third cylinder 41 is detachably connected to the light-emitting end 111 of the first cylinder 11, and the other end of the third cylinder 41 is detachably connected to the light-emitting lens 3. The light effect device 42 is arranged in the third cylinder 41. The light emitted by the light source sequentially passes through the second cylinder 21, the first cylinder 11, the third cylinder 41 and the light-emitting lens 3 and is emitted. After the light is processed by the light effect device 42 in the third cylinder 41, different light effects can be formed, and finally it is emitted from the light-emitting lens 3. For example, the light effect device 42 can be one of a slide, a diaphragm and a color filter, etc.

[0064] In some embodiments, an insertion port is provided on the outer wall of the third cylinder 41. The insertion port communicates with the inside of the third cylinder 41, and the light effect device 42 is inserted into the insertion port to be detachably mounted on the third cylinder 41, facilitating replacement.

[0065] In some embodiments, a lens group 33 is provided inside the light-emitting lens 3. By adjusting the distance between the lens group 33 and the first lens 12, the focal length of the lens system can be adjusted, and the light-emitting angle when the light exits from the light-emitting lens 3 can be changed.

[0066] In some embodiments, the light-emitting lens 3 includes a fourth cylinder 31 and a fifth cylinder 32. One end of the fourth cylinder 31 is detachably connected to the third cylinder 41, so that the light-emitting lens 3 and the light effect assembly 4 can be detachably connected. The other end of the fourth cylinder 31 is slidably connected to the fifth cylinder 32 to be able to adjust the relative distance between the fourth cylinder 31 and the fifth cylinder 32. Among them, the lens group 33 is arranged inside the fifth cylinder 32. By moving the fifth cylinder 32, the distance between the lens group 33 and the first lens 12 can be adjusted for focusing. Among them, the lens group 33 includes a plurality of lenses arranged at intervals. Among the plurality of lenses, there are both convex lenses and concave lenses. For the specific setting, reference can be made to the existing light-emitting lens 3, which will not be elaborated here.

[0067] In some embodiments, the fourth cylinder 31 and the fifth cylinder 32 can be nested. An external thread is provided on the outer wall of one of them, and an internal thread is provided on the inner wall of the other, so that the fourth cylinder 31 and the fifth cylinder 32 are threadedly connected, thereby the position between the fourth cylinder 31 and the fifth cylinder 32 can be adjusted and the connection is stable.

[0068] See Figure 8 , in some embodiments, the lens system may further include a mounting handle 5. The mounting handle 5 is connected to the bottom of the first cylinder 11 and is used to mount the lens system on an external device. The external device can be a tripod or various brackets to facilitate fixing the lens system and convenient for outdoor shooting.

[0069] In some embodiments, the mounting handle 5 includes a mounting portion 51 extending along the axial direction of the first cylinder 11, a rotating portion 52 connected to the bottom of the first cylinder 11, and a handle 53. A fixing hole 54 is provided on the mounting portion 51 for fixedly mounting with an external device. The handle 53 is connected to a rotating shaft, and the rotating shaft is rotatably connected to the mounting portion 51 and the rotating portion 52. Thus, when the mounting portion 51 is fixed on an external device, by rotating the handle 53, the rotating portion 52 can be driven to rotate relative to the mounting portion 51, so that the first cylinder 11 rotates relative to the mounting portion 51, thereby adjusting the pitching angle of the first cylinder 11.

[0070] In some embodiments, the rotating part 52 can be screwed to the bottom of the first cylinder 11 through the bolt fastener 13 to make the connection between the rotating part 52 and the first cylinder 11 stable.

[0071] In some embodiments, a locking knob 55 can also be provided on the mounting part 51. The locking knob 55 is rotatably connected to the outer side wall of the mounting part 51. One end of the locking knob 55 extends into the fixing hole 54. By rotating the locking knob 55, the part of the external device extending into the fixing hole 54 can be tightened, so as to lock the mounting part 51 and the external device, and it is convenient to adjust the tightness. The fixing hole 54 can be formed on the mounting part 51 along the axial direction and / or the radial direction of the first cylinder 11, so that the lens system can be installed on the external device by selecting the fixing holes 54 in different orientations as needed, and shooting at different angles can be realized.

[0072] Although the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be broadly construed within the spirit and scope defined by the appended claims. Therefore, all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A lens assembly, characterized in that, Comprising: A general component, the general component includes a first cylinder body and a first lens. The two ends of the first cylinder body are penetrated axially. The two ends of the first cylinder body are respectively a light-emitting end and a first assembly end. The first lens is coaxially arranged in the first cylinder body. The first lens is used to make the light passing through it emit in parallel. A plurality of replacement components, the plurality of replacement components can be selectively installed on the first assembly end. Each of the replacement components includes a second cylinder body and a second lens. The specifications of the second lenses of different replacement components are different. The two ends of the second cylinder body are penetrated axially. The two ends of the second cylinder body are respectively a light-incident end and a second assembly end. The second assembly end is used to be detachably connected to the first assembly end and make the first cylinder body and the second cylinder body coaxially arranged. The second lens is coaxially installed in the second cylinder body. The second lens is used to make the light passing through it emit evenly. The light-incident end is used to be detachably connected to a light source. The light emitted by the light source enters the second cylinder body and the first cylinder body through the light-incident end, and is subjected to the light effect processing of the second lens and the first lens, so that the light is condensed into parallel light and emitted from the light-emitting end of the first cylinder body.

2. The lens assembly according to claim 1, wherein The first lens includes a first convex lens and a second convex lens. The first convex lens and the second convex lens are spaced apart in the first cylinder body. The convex surface of the first convex lens faces the convex surface of the second convex lens.

3. The lens assembly according to claim 1, wherein The second lens is a convex lens with its convex surface facing the first lens.

4. The lens assembly according to claim 1, wherein The first assembly end and the second assembly end are nested. A first mounting hole is formed on the side wall of the first assembly end. A second mounting hole is formed on the side wall of the second assembly end corresponding to the position of the first mounting hole. The first assembly end and the second assembly end are fixedly connected by a fastener passing through the first mounting hole and the second mounting hole.

5. The lens assembly according to claim 1, wherein An annular clamping groove is provided on the inner wall of the second cylinder body. The peripheral edge of the second lens is detachably accommodated in the clamping groove.

6. The lens assembly according to claim 5, wherein The second cylinder body includes a cylinder main body and a limiting member. The two ends of the cylinder main body are penetrated axially. The two ends of the cylinder main body respectively form the light-incident end and the second assembly end. An annular limiting portion is coaxially provided in the cylinder main body. The limiting member is detachably arranged in the cylinder main body. The limiting member is annular. The limiting member is spaced apart from the limiting portion. An annular clamping groove is formed between the limiting member, the limiting portion and the inner wall of the cylinder main body.

7. The lens assembly according to claim 6, wherein The cylinder body includes a first ring portion, a second ring portion, and a third ring portion. The first ring portion and the third ring portion extend along the axial direction of the cylinder body, the second ring portion extends along the radial direction of the cylinder body, the inner diameter of the third ring portion is smaller than the inner diameter of the first ring portion, both ends of the second ring portion are respectively connected to one end of the first ring portion and the third ring portion, the second assembly end is formed on the first ring portion, the light incident end is formed on the third ring portion, the outer end of the third ring portion protrudes towards the central axis direction of the cylinder body to form the limiting portion, the limiting member is detachably connected to the inner side wall of the second ring portion, and the inner end of the limiting member extends inwards beyond the inner wall of the third ring portion and faces the limiting portion to form the clamping groove.

8. The lens assembly according to claim 6, wherein a fourth ring portion is provided on the inner wall of the cylinder body, the fourth ring portion and the cylinder body are coaxially arranged, the limiting portion is provided at one end in the axial direction of the fourth ring portion, the limiting member is detachably connected to the other end in the axial direction of the fourth ring portion, the inner end of the limiting member extends inwards beyond the inner wall of the fourth ring portion and faces the limiting portion to form the clamping groove.

9. A lens system, characterized in that, It includes a light emitting lens, a light effect assembly, and the lens assembly according to any one of claims 1 to 8 which are coaxially arranged. The light effect assembly includes a third cylinder body and a light effect device for changing the light effect. Both ends in the axial direction of the third cylinder body are provided with through holes. One end of the third cylinder body is detachably connected to the light emitting end of the first cylinder body, the other end of the third cylinder body is detachably connected to the light emitting lens, the light effect device is arranged in the third cylinder body, and the light emitted by the light source sequentially passes through the second cylinder body, the first cylinder body, the third cylinder body, and the light emitting lens and then is emitted.

10. The lens system according to claim 9, characterized in that, The lens system further includes a mounting handle, and the mounting handle is connected to the bottom of the first cylinder body and is used for mounting the lens system on an external device.

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