Optical imaging lens
By designing mounting rings, buffer rings, and rubber sleeves in the optical imaging lens, effective buffering protection is achieved during side impacts, and the springs are easily replaceable. This solves the problems of poor buffering effect and inconvenient replacement in existing technologies, and extends the lens's service life.
Patent Information
- Application Number
- CN202423090421.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-16
AI Technical Summary
Existing optical imaging lenses cannot effectively cushion impacts from the side, and spring replacement is inconvenient.
An optical imaging lens was designed, including a mounting ring, a buffer ring, and a rubber sleeve structure. The buffer spring is removable and replaceable through sliding and threaded connections, which enhances the side buffer protection.
It provides effective cushioning protection when hit from the side, and facilitates the replacement of the cushioning spring, extending the lens's lifespan.
Smart Images
Figure CN223526561U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to optical imaging lens technical field especially relates to an optical imaging lens. BACKGROUND
[0002] Optical lens is indispensable component in machine vision system, generally is by many convex lens and concave lens and corresponding metal parts combination, directly influence the pros and cons of imaging quality, influence algorithm realization and effect, optical lens is the portal of camera, its most basic function is to make the object imaging on the photosensitive element in the camera, for the camera, the lens is good or bad has been the key factor of influencing imaging quality.
[0003] Such as prior art one kind is impacted resistance flame retardant corrosion resistance type optical imaging lens, its through impacted resistance assembly includes the sleeve ring of being sleeved on the lens lens body front part shell, the sleeve ring is slidably sleeved with the sliding sleeve ring, the spring is arranged between the sliding sleeve ring and the sleeve ring, one end of the spring is sleeved on the sleeve ring, the other end is sleeved on the sliding sleeve ring, the utility model discloses, install the impacted resistance assembly on the lens front part, to form an effective buffer on the lens, when the lens is impacted or impacted by outside, utilize the impacted resistance assembly to effectively buffer the stress of outside impact and collision, effectively protect the lens, avoid the lens to be damaged, prolong the service life of lens.
[0004] However the lens is impacted when on the side, cannot play the role of buffer, thereby reduce the effect of buffer, and after the elasticity of spring reduces after long time use, it is inconvenient to replace the spring.
[0005] Therefore, it is necessary to provide an optical imaging lens to solve the above technical problems. UTILITY MODEL CONTENTS
[0006] The utility model provides an optical imaging lens, solve the problem that when being impacted on the side, cannot play the role of buffer, inconvenient for user to replace the spring.
[0007] To solve the above technical problems, the utility model provides an optical imaging lens, which comprises:
[0008] A lens body;
[0009] A mounting ring is provided on the outer side of the lens body, one end of the mounting ring is fixedly installed with a plurality of moving plates, and one end of each of the plurality of moving plates is fixedly installed with a push ring;
[0010] A buffer ring is sleeved on the outer side of the lens body, an inner side of the buffer ring is provided with a sliding cavity, the inner side of the sliding cavity is provided with a buffer spring, one side of the inner side of the sliding cavity is threadedly connected with a threaded ring, and one side of the threaded ring is fixedly installed with a check ring.
[0011] A first rubber sleeve is fixedly installed on the outer side of the mounting ring.
[0012] A second rubber sleeve is sleeved on the outer side of the buffer ring.
[0013] The lens body comprises a shell, and the shell is internally provided with, from left to right, a plane glass, a first lens, a second lens, a third lens, a fourth lens and a filter.
[0014] Preferably, half of the maximum field of view angle Semi-FOV of the lens body satisfies Semi-FOV>40°, and the combined focal length f12 of the first lens and the second lens and the combined focal length f34 of the third lens and the fourth lens satisfy -1.0<f34 / f12<-0.5.
[0015] Preferably, the pushing ring is slidably connected to the inner side of the sliding cavity, and one end of the pushing ring abuts against one end of the buffer spring.
[0016] Preferably, one end of the check ring abuts against one end of the buffer ring, and one end of the threaded ring abuts against the other end of the pushing ring.
[0017] Preferably, the inner side and the outer side of the pushing ring are respectively attached to two sides of the inner side of the sliding cavity.
[0018] Preferably, the outer side of the lens body is fixedly installed with an outer threaded ring, and the outer side of the outer threaded ring is threadedly connected with an inner threaded ring.
[0019] Preferably, the inner threaded ring is fixedly installed on the inner side of the mounting ring.
[0020] Preferably, one side of the outer threaded ring abuts against one end of the inner threaded ring.
[0021] Compared with the related art, the optical imaging lens has the following beneficial effects:
[0022] The utility model provides a kind of optical imaging lens, by the first rubber sleeve of the outside surface of mounting ring is set, the second rubber sleeve of the outside surface of buffer ring is set, in this way, when side is impacted, it can play the role of buffer protection to lens body;And after long time uses, rotation baffle ring can be carried out, make baffle ring drive screw ring from the inner side surface of slide cavity thread connection, then it can be extracted from the inner side surface of slide cavity to push ring and buffer spring, to facilitate user to replace buffer spring. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is the structure schematic drawing of the first embodiment of the utility model to provide a kind of optical imaging lens;
[0024] Figure 2 It is the installation ring cross section structure schematic drawing shown in Figure 1
[0025] Figure 3 It is the screw ring and baffle ring three-dimensional structure schematic drawing shown in Figure 2
[0026] Figure 4 It is the lens body cross section structure schematic drawing shown in Figure 1
[0027] Figure 5 It is the structure schematic drawing of the second embodiment of the utility model to provide a kind of optical imaging lens.
[0028] Marked number in drawing:1, lens body, 11, plane glass, 12, first lens, 13, second lens, 14, third lens, 15, fourth lens, 16, filter, 17, shell, 2, mounting ring, 21, moving plate, 22, push ring, 3, buffer ring, 31, slide cavity, 32, buffer spring, 4, baffle ring, 41, screw ring, 5, first rubber sleeve, 6, second rubber sleeve, 7, outer screw ring, 71, inner screw ring. DETAILED DESCRIPTION
[0029] The utility model is further described below in connection with drawing and embodiment. EMBODIMENT
[0030] Please combine with Figure 1 , Figure 2 , Figure 3 And Figure 4 Among them, Figure 1 It is the structure schematic drawing of the first embodiment of the utility model to provide a kind of optical imaging lens; Figure 2 It is the installation ring cross section structure schematic drawing shown in Figure 1 Figure 3 Figure 2 The screw ring and the stop ring are shown in the perspective view. Figure 4 For Figure 1 The lens body is shown in the cross-sectional view. An optical imaging lens comprises a lens body 1.
[0031] A mounting ring 2 is arranged on the outer side of the lens body 1, one end of the mounting ring 2 is fixedly mounted with a plurality of moving plates 21, one end of each of the plurality of moving plates 21 is fixedly mounted with a pushing ring 22.
[0032] A buffer ring 3 is sleeved on the outer side of the lens body 1, an inner side of the buffer ring 3 is provided with a sliding cavity 31, an inner side of the sliding cavity 31 is provided with a buffer spring 32, one side of the inner side of the sliding cavity 31 is threadedly connected with a screw ring 41, one side of the screw ring 41 is fixedly mounted with a stop ring 4.
[0033] A first rubber sleeve 5 is fixedly mounted on the outer side of the mounting ring 2.
[0034] A second rubber sleeve 6 is sleeved on the outer side of the buffer ring 3.
[0035] The lens body 1 comprises a housing 17, an inner side of the housing 17 is sequentially provided with a plane glass 11, a first lens 12, a second lens 13, a third lens 14, a fourth lens 15 and a filter 16 from left to right.
[0036] Wherein, half of the maximum field of view angle Semi-FOV of the lens body 1 satisfies Semi-FOV>40°; the combined focal length f12 of the first lens 12 and the second lens 13 and the combined focal length f34 of the third lens 14 and the fourth lens 15 satisfy -1.0<f34 / f12<-0.5.
[0037] The lens body 1 is an optical imaging lens.
[0038] The pushing ring 22 is slidingly connected to the inner side of the sliding cavity 31, one end of the pushing ring 22 abuts one end of the buffer spring 32.
[0039] By sliding the pushing ring 22 on the inner side of the sliding cavity 31, the pushing ring 22 can push the buffer spring 32 when in use, thereby playing a buffering role.
[0040] One end of the stop ring 4 abuts one end of the buffer ring 3, one end of the screw ring 41 abuts the other end of the pushing ring 22.
[0041] By abutting one end of the threaded ring 41 against the other end of the push ring 22, the push ring 22 can be displayed on the inner side of the sliding cavity 31, avoiding the push ring 22 from moving out of the inner side of the sliding cavity 31.
[0042] The inner side and the outer side of the push ring 22 are respectively attached to the two sides of the inner side of the sliding cavity 31.
[0043] The working principle of the optical imaging lens provided by the utility model is as follows:
[0044] When one end of the lens body 1 is impacted during use, the buffer ring 3 will slide on the outer side of the lens body 1, and at the same time, the push ring 22 will slide on the inner side of the sliding cavity 31, thereby extruding the buffer spring 32, playing a buffering role.
[0045] When impacted from the side, the first rubber sleeve 5 and the second rubber sleeve 6 can be in contact with the impacting object, thereby playing a role of protecting the lens body 1 from the side.
[0046] When the elasticity of the buffer spring 32 is reduced after long-term use, the user can rotate the stop ring 4, so that the stop ring 4 drives the threaded ring 41 to be threadedly connected on the inner side of the sliding cavity 31, thereby disassembling the threaded ring 41 from the inner side of the sliding cavity 31, at this time, the user can take out the push ring 22 from the inner side of the sliding cavity 31, thereby disassembling the buffer spring 32, which facilitates the user to replace the buffer spring 32.
[0047] Compared with the related art, the optical imaging lens provided by the utility model has the following beneficial effects:
[0048] By sleeving the first rubber sleeve 5 on the outer side of the mounting ring 2 and sleeving the second rubber sleeve 6 on the outer side of the buffer ring 3, the lens body 1 can be protected by buffering when impacted from the side, and after long-term use, the stop ring 4 can be rotated, so that the stop ring 4 drives the threaded ring 41 to be threadedly connected out of the inner side of the sliding cavity 31, and then the push ring 22 and the buffer spring 32 can be taken out from the inner side of the sliding cavity 31, thereby facilitating the user to replace the buffer spring 32. Embodiment
[0049] Please refer to Figure 4 Based on the optical imaging lens provided by the first embodiment of the application, the second embodiment of the application proposes another optical imaging lens. The second embodiment is only a preferred mode of the first embodiment, and the implementation of the second embodiment will not affect the implementation of the first embodiment alone.
[0050] Specifically, the second embodiment of the present application provides an optical imaging lens, which differs from the first embodiment in that an outer threaded ring 7 is fixedly installed on the outer side of the lens body 1, and an inner threaded ring 71 is threadedly connected to the outer side of the outer threaded ring 7.
[0051] The inner threaded ring 71 is fixedly installed on the inner side of the mounting ring 2.
[0052] One side of the outer threaded ring 7 abuts against one end of the inner threaded ring 21.
[0053] The working principle of the optical imaging lens provided by the present application is as follows:
[0054] When it is necessary to disassemble the mounting ring 2 and the buffer ring 3, the user can rotate the mounting ring 2 to drive the inner threaded ring 71 to be threadedly connected to the outer side of the outer threaded ring 7, so that one end of the inner threaded ring 71 is away from the outer threaded ring 7, and thus the mounting ring 2 is disassembled from the upper surface of the lens body 1.
[0055] Compared with the related art, the optical imaging lens provided by the present application has the following beneficial effects:
[0056] Through the cooperation of the outer threaded ring 7 and the inner threaded ring 71, when in use, the user rotates the mounting ring 2 to drive the inner threaded ring 71 to be threadedly connected to the outer side of the outer threaded ring 7, so that the user can conveniently install and disassemble the mounting ring 2 from the upper surface of the lens body 1.
[0057] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process conversion, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.
Claims
1. An optical imaging lens, characterized in that, The utility model relates to a lens, including: Lens body; Mounting ring, the mounting ring sets up in the outer side of lens body, one end of mounting ring is fixedly installed with a plurality of moving plate, one end of a plurality of moving plate is fixedly installed with push ring; Buffer ring, the buffer ring is sleeved in the outer side of lens body, the inside of buffer ring is provided with slide cavity, the inner side of slide cavity is provided with buffer spring, one side of slide cavity inner side is screw thread connection has screw ring, one side of screw ring is fixedly installed with stop ring; First rubber sleeve, first rubber sleeve is fixedly installed in the outer side of mounting ring; Second rubber sleeve, second rubber sleeve is sleeved in the outer side of buffer ring; The lens body includes a shell, the inside of the shell is sequentially provided with a planar glass, a first lens, a second lens, a third lens, a fourth lens and a filter from left to right; Wherein, the half of the maximum field of view angle Semi-FOV of the lens body satisfies: Semi-FOV> 40°, the combination focal length f12 of the first lens and the second lens, the combination focal length f34 of the third lens and the fourth lens satisfy: -1.0 < f34 / f12 < -0.
5. 2.The optical imaging lens according to claim 1, wherein, The push ring is slidably connected to the inner side of the slide cavity, one end of the push ring abuts one end of the buffer spring. 3.The optical imaging lens according to claim 1, wherein, One end of the stop ring abuts one end of the buffer ring, and one end of the screw ring abuts the other end of the push ring. 4.The optical imaging lens according to claim 1, wherein, The inner side and the outer side of the push ring respectively fit the two sides of the inner side of the slide cavity.
5. The optical imaging lens according to claim 1, wherein, The outer side of the lens body is fixedly installed with an outer screw ring, and the outer side of the outer screw ring is screw thread connected with an inner screw ring. 6.The optical imaging lens according to claim 5, wherein, The inner screw ring is fixedly installed on the inner side of the mounting ring.
7. The optical imaging lens according to claim 6, characterized in that One side of the outer screw ring abuts one end of the inner screw ring.