CN111427221B - Optical device with variable focal length lens - Google Patents
Optical device with variable focal length lens Download PDFInfo
- Publication number
- CN111427221B CN111427221B CN202010157549.7A CN202010157549A CN111427221B CN 111427221 B CN111427221 B CN 111427221B CN 202010157549 A CN202010157549 A CN 202010157549A CN 111427221 B CN111427221 B CN 111427221B
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- groove
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- box body
- lens
- shaped sliding
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- 230000003287 optical effect Effects 0.000 title claims abstract description 20
- 239000000428 dust Substances 0.000 abstract description 18
- 230000001681 protective effect Effects 0.000 abstract description 14
- 238000009434 installation Methods 0.000 abstract 2
- 230000009471 action Effects 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The utility model provides an optical device of camera lens of variable focal length, comprises a box bod, the bar recess is seted up in the left centre of box body inner wall, first circular groove that passes through is seted up in the left centre of bar recess, the right-hand member of the left side fixed connection zoom lens of box body, zoom lens and first circular groove central line collineation that passes through, the right side of box body is seted up and is passed through the circular groove that passes through of second coaxial with first circular groove that passes through, the circular inslot that passes through of second rotates installation internal thread pipe through one-way bearing, internal thread pipe internal thread installation external screw thread pipe, the coaxial ring gear's of left end fixed connection of external screw thread pipe right side, coaxial violently the right-hand member of pipe. The invention has simple structure and convenient use and operation, can quickly replace the protective lens of the zoom lens in a dust environment, and can prevent dust from entering between the lens of the zoom lens and the protective lens, thereby avoiding the influence of the dust on the replacement of the protective lens.
Description
Technical Field
The invention belongs to the field of optical equipment, and particularly relates to an optical device with a variable focal length lens.
Background
The zoom lens is a camera lens which can change focal length within a certain range so as to obtain different field angles, images with different sizes and different scenery ranges, one end of the zoom lens, which is far away from a camera, is generally provided with a protective lens which is convenient to detach, the protective lens can protect the lens in the zoom lens, the protective lens is easy to damage in a severe environment, the protective lens needs to be replaced quickly, but when the shooting environment has more dust, the protective lens is directly replaced, the dust easily enters between the protective lens and the lens of the zoom lens to influence the normal use of the zoom lens, a protective cover needs to be installed on the zoom lens after the protective lens is detached, meanwhile, the protective lens needs to be carefully stored, one side of the protective lens, which is close to the zoom lens, is prevented from being polluted by the dust, the replacement operation of the protective lens is complicated, therefore, the invention provides an optical device with a variable focal length lens.
Disclosure of Invention
The invention provides an optical device with a variable focal length lens, which is used for overcoming the defects in the prior art.
The invention is realized by the following technical scheme:
an optical device with a variable focal length lens comprises a box body, wherein a strip-shaped groove is formed in the middle of the left side of the inner wall of the box body, a first circular through groove is formed in the middle of the left side of the strip-shaped groove, the left side of the box body is fixedly connected with the right end of a zoom lens, the zoom lens is collinear with the central line of the first circular through groove, a second circular through groove coaxial with the first circular through groove is formed in the right side of the box body, an internal thread pipe is rotatably installed in the second circular through groove through a one-way bearing, an external thread pipe is installed in the internal thread pipe, the left end of the external thread pipe is fixedly connected with the right side of a coaxial ring gear, the left side bearing of the ring gear is connected with the right end of a coaxial transverse pipe, a front-back through chute is formed in the middle of the left side of the transverse pipe, two first baffles which can only, the bottom sides of the sliding blocks are respectively and fixedly connected with the top sides of the corresponding first baffle plates, and the opposite sides of the sliding blocks are respectively and fixedly connected with one ends of the first strip-shaped sliding grooves corresponding to the first strip-shaped sliding grooves through springs; two second baffles which can only move back and forth and are symmetrical front and back are movably installed in the strip-shaped groove, the right side of each second baffle is in friction contact fit with the left side of the corresponding first baffle, an inverted L-shaped sliding groove is formed in the top side of the strip-shaped groove, two inverted L-shaped sliding rods which can only move back and forth are movably installed in the inverted L-shaped sliding groove, the lower ends of the inverted L-shaped sliding rods are respectively and fixedly connected with the top side of the corresponding second baffle, the upper ends of the inverted L-shaped sliding rods respectively penetrate through the inverted L-shaped sliding groove and are positioned in the box body and are fixedly installed with a screw nut, the screw threads at the front end and the rear end of each screw nut are installed with the same screw rod in an internal thread manner, the two ends of each screw rod are respectively connected with an inner wall bearing of the box body, a coaxial first helical gear is fixedly installed in the middle, a gear is fixedly arranged at the right end of the cross shaft, the gear is meshed with the ring gear, a torsion spring is sleeved on the periphery of the cross shaft, and one end of the torsion spring is fixedly connected with the cross shaft while the other end is fixedly connected with the box body; the bottom side of violently managing is seted up second bar spout, and the left side and the external world of second bar spout are linked together, sliding mounting slide bar in the second bar spout, the lower extreme and the box body fixed connection of slide bar, violently manage the lens that interior fixed mounting is located first baffle right side, the bottom fixed mounting of box body limits internal thread pipe pivoted stop device.
The optical device with the variable focal length lens comprises a limiting device, wherein one end of the limiting device is fixedly connected with a spring rod, the other end of the spring rod is fixedly connected with the lower end of a shifting rod, the upper end of the right side of the shifting rod is in contact fit with the left side of an external threaded pipe, the lower end of the left side of an internal threaded pipe is provided with a jack, and the upper portion of the right side of the shifting rod is fixedly provided with an inserting rod which is in inserting fit with the jack.
In the optical device with the variable focal length lens, the right sides of the second baffle plates are respectively covered with a rubber layer.
The optical device with the variable focal length lens comprises two first strip-shaped sliding grooves, wherein the two first strip-shaped sliding grooves are respectively arranged on the top side and the bottom side of the sliding grooves, sliding blocks fixedly connected with the first baffle are respectively arranged in the first strip-shaped sliding grooves, and the sliding blocks are respectively and fixedly connected with the corresponding first strip-shaped sliding grooves through springs.
In the optical device with the variable focal length lens, the right end of the external thread tube is fixedly connected with the left side of the coaxial rotating ring, and the periphery of the rotating ring is provided with the decorative cracks.
In the optical device with a variable focal length lens, the ring gear, the external threaded pipe and the inner side of the rotating ring are on the same conical curved surface.
The invention has the advantages that: the protection lens of the zoom lens is simple in structure and convenient and fast to use and operate, the protection lens of the zoom lens can be quickly replaced in a dust environment, dust can be prevented from entering between the lens of the zoom lens and the protection lens, and therefore the influence of the dust on the replacement of the protection lens is avoided. When the invention is used, the internal thread pipe cannot rotate clockwise in the second circular through groove through the one-way bearing, so that the external thread pipe can be screwed out from the internal thread pipe by screwing the external thread pipe anticlockwise, the slide block slides oppositely under the action of the elastic thrust of the spring, the slide block drives the first baffle plate to move oppositely to close the left end of the transverse pipe, the lens can be protected, and the left side of the lens is prevented from being polluted by dust, then the ring gear and the transverse pipe can be moved out of the internal thread pipe, meanwhile, when the gear is separated from the ring gear, the transverse shaft rotates reversely under the elastic action of the torsion spring, the transverse shaft drives the screw rod to rotate through the second helical gear and the first helical gear, the nuts move oppositely, the nuts drive the inverted L-shaped slide rods to move oppositely along the inverted L-shaped sliding grooves, and the inverted L-shaped slide rods drive the corresponding second baffles to move oppositely until the second baffles are reset and closed, so that dust can be prevented from entering the zoom lens through the first circular groove; when the lens is installed, the transverse pipe and the ring gear are inserted into the box body through the inner hole of the internal thread pipe, the external thread pipe is rotated anticlockwise, the limiting device can prevent the internal thread pipe from rotating anticlockwise in the first circular groove until the ring gear is meshed with the gear, the left side of the first baffle is in frictional contact fit with the right side of the second baffle, the limiting device relieves the existing internal thread pipe, the external thread pipe continues to rotate anticlockwise, the external thread pipe can drive the internal thread pipe to rotate, the transverse pipe stops moving leftwards at the moment, the external thread pipe drives the gear through the ring gear and rotates forwards through the transverse shaft, the torsion spring starts to store energy, the two second baffles move backwards and are opened, meanwhile, the second baffles drive the corresponding first baffles to move backwards and open through friction, the spring is compressed, and the zoom lens can pass through the first circular groove, the transverse pipe and the ring gear, The passageway that the external screw thread pipe formed shoots, and first circular recess is direct to be intraductal with violently communicate, can avoid external dust to get into between protection lens and the zoom lens.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is an enlarged view of the view from the direction A of FIG. 1; FIG. 3 is an enlarged view of section I of FIG. 1; fig. 4 is a partial enlarged view of ii of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An optical device with a variable focal length lens comprises a box body 1, a strip-shaped groove 2 is arranged in the middle of the left side of the inner wall of the box body 1, a first circular through groove 3 is arranged in the middle of the left side of the strip-shaped groove 2, the left side of the box body 1 is fixedly connected with the right end of a zoom lens 4, the left end of the zoom lens 4 can be clamped with a camera, the zoom lens 4 is collinear with the center line of the first circular through groove 3, a second circular through groove 5 which is coaxial with the first circular through groove 3 is arranged on the right side of the box body 1, an internal thread pipe 6 is rotatably arranged in the second circular through groove 5 through a one-way bearing, an external thread pipe 7 is internally thread-arranged in the internal thread pipe 6, the left end of the external thread pipe 7 is fixedly connected with the right side of a coaxial ring gear 8, the left bearing of the ring gear 8 is connected with the right end of a coaxial transverse pipe 9, a first strip-shaped sliding groove 12 is formed in the top side of the sliding groove 10, two sliding blocks 13 capable of sliding back and forth are movably mounted in the first strip-shaped sliding groove 12, the bottom sides of the sliding blocks 13 are fixedly connected with the top sides of the corresponding first baffle plates 11 respectively, and the opposite sides of the sliding blocks 13 are fixedly connected with one corresponding ends of the first strip-shaped sliding grooves 12 through springs 14 respectively; two second baffles 15 which can only move back and forth and are symmetrical front and back are movably installed in the strip-shaped groove 2, the right side of each second baffle 15 is in friction contact fit with the left side of the corresponding first baffle 11, an inverted L-shaped sliding groove 16 is formed in the top side of the strip-shaped groove 2, two inverted L-shaped sliding rods 17 which can only move back and forth are movably installed in the inverted L-shaped sliding grooves 16, the lower ends of the inverted L-shaped sliding rods 17 are respectively and fixedly connected with the top sides of the corresponding second baffles 15, the upper ends of the inverted L-shaped sliding rods 17 respectively penetrate through the inverted L-shaped sliding grooves 16 and are positioned in the box body 1 and are fixedly provided with a screw nut 18, the same screw rod 19 is installed in the screw nut 18 through internal threads, the screw threads at the front end and the rear end of the screw rod 19 are opposite in rotating direction, the two ends of the screw rod 19 are respectively connected with the inner wall bearing of the box body 1, a coaxial first, the second bevel gear 22 is meshed with the first bevel gear 20, the right end of the transverse shaft 21 is fixedly provided with a gear 23, the gear 23 is meshed with the ring gear 8, the periphery of the transverse shaft 21 is sleeved with a torsion spring 60, one end of the torsion spring 60 is fixedly connected with the transverse shaft 21, and the other end of the torsion spring 60 is fixedly connected with the box body 1; a second strip-shaped sliding groove 24 is formed in the bottom side of the transverse pipe 9, the left side of the second strip-shaped sliding groove 24 is communicated with the outside, a sliding rod 25 is arranged in the second strip-shaped sliding groove 24 in a sliding mode, the lower end of the sliding rod 25 is fixedly connected with the box body 1, a lens 30 located on the right side of the first baffle 11 is fixedly arranged in the transverse pipe 9, and a limiting device for limiting the rotation of the internal threaded pipe 6 is fixedly arranged at the bottom of the box body 1. The protection lens of the zoom lens is simple in structure and convenient and fast to use and operate, the protection lens of the zoom lens can be quickly replaced in a dust environment, dust can be prevented from entering between the lens of the zoom lens and the protection lens, and therefore the influence of the dust on the replacement of the protection lens is avoided. When the invention is used, because the internal thread tube 6 can not rotate clockwise in the second circular through groove 5 through the one-way bearing, the external thread tube 7 can be unscrewed from the internal thread tube 6 by screwing the external thread tube 7 anticlockwise, the slide block 13 slides in opposite directions under the action of the elastic thrust of the spring 14, the slide block 13 drives the first baffle plate 11 to move in opposite directions to close the left end of the transverse tube 9, the lens 30 can be protected, the left side of the lens 30 is prevented from being polluted by dust, then the annular gear 8 and the transverse tube 9 can be moved out of the internal thread tube 6, meanwhile, when the gear 23 is separated from the annular gear 8, the transverse shaft 21 rotates in opposite directions under the action of the elasticity of the torsion spring 60, the transverse shaft 21 drives the screw rod 19 to rotate through the second helical gear 22 and the first helical gear 20, the nut 18 moves in opposite directions, the nut 18 drives the inverted L-shaped slide rod 17 to move in opposite directions along the inverted L-shaped slide groove 16, the inverted L-shaped slide rod, thereby preventing dust from entering the zoom lens through the first circular groove 3; when the lens 30 is installed, the horizontal tube 9 and the ring gear 8 are inserted into the box body 1 through the inner hole of the internal thread tube 6, the external thread tube 7 is rotated anticlockwise, at the moment, the limiting device can prevent the internal thread tube 6 from rotating anticlockwise in the first circular groove 5, until the ring gear 8 is meshed with the gear 23, the left side of the first baffle plate 11 is in friction contact fit with the right side of the second baffle plate 15, at the moment, the limiting device relieves the current to the internal thread tube 6, the external thread tube 7 continues to rotate anticlockwise, the external thread tube 7 can drive the internal thread tube 6 to rotate, at the moment, the horizontal tube 9 stops moving leftwards, the external thread tube 7 drives the gear 23 and the transverse shaft 21 to rotate forwards through the ring gear 8, the torsion spring 60 starts to store energy, the two second baffle plates 15 move backwards and open, at the same time, the second baffle plates 15 drive the corresponding first baffle plates 11 to, at the moment, the zoom lens 4 can be shot through a channel formed by the first circular groove 3, the transverse pipe 9, the ring gear 8 and the external threaded pipe 7, the first circular groove 3 is directly communicated with the transverse pipe 9, and external dust can be prevented from entering between the protection lens and the zoom lens.
Specifically, as shown in the figure, the limiting device according to the present embodiment includes a spring rod 26 having one end fixedly connected to the box body 1, the other end of the spring rod 26 is fixedly connected to the lower end of a shift lever 27, the upper end of the right side of the shift lever 27 is in contact fit with the left side of the external threaded pipe 7, the lower end of the left side of the internal threaded pipe 6 is provided with an insertion hole 28, and the upper portion of the right side of the shift lever 27 is fixedly mounted with an insertion rod 29 in. The inserted rod 29 can be inserted into the insertion hole 28 under the elastic thrust action of the spring rod 26, at this time, the internal threaded tube 6 and the box body 1 are fixed relatively, the external threaded tube 7 can be screwed into the internal threaded tube 6, the left side of the external threaded tube 7 generates leftward thrust on the upper end of the shift lever 27, the spring rod 26 is gradually compressed, the inserted rod 29 is gradually pulled out from the insertion hole 28 until the inserted rod 29 is pulled out from the insertion hole 28, the ring gear 8 is meshed and matched with the gear 23, the left side of the first baffle plate 11 is in frictional contact and matching with the right side of the second baffle plate 15, the fixing of the limiting device on the internal threaded tube 6 is released, the external threaded tube 7 continues to rotate, and the external threaded tube 7 can drive the internal threaded tube.
Specifically, as shown in the figure, the right side of the second baffle 15 in this embodiment is covered with a rubber layer 40. The rubber layer 40 can increase the friction force between the left side of the first baffle plate 11 and the second baffle plate 15, and simultaneously, the left side of the first baffle plate 11 can be in contact fit with the right side of the second baffle plate 15 before the gear 23 and the ring gear 8 are in effective meshing fit, so that the sealing performance of the connection between the first baffle plate 11 and the second baffle plate 15 is increased.
Further, as shown in the figure, two first bar-shaped sliding chutes 12 are provided in the embodiment, and are respectively opened on the top side and the bottom side of the sliding chute 10, sliding blocks 13 fixedly connected with the first baffle 11 are respectively provided in the first bar-shaped sliding chutes 12, and the sliding blocks 13 are respectively fixedly connected with the corresponding first bar-shaped sliding chutes 12 through springs 14. The elastic sliding rail mechanism consisting of the first strip-shaped sliding groove 12, the sliding block 13 and the spring 14 which are symmetrical up and down is arranged, so that the first baffle plate 11 can move back and forth in the sliding groove 10 more stably.
Furthermore, as shown in the figure, the right end of the external thread tube 7 of the present embodiment is fixedly connected to the left side of the coaxial rotating ring 50, and the outer circumference of the rotating ring 50 is provided with decorative cracks. The external thread pipe 7 is rotated more laborsavingly through the rotating plate 50, and the use experience of a user is increased.
Further, as shown in the drawing, the ring gear 8, the male screw pipe 7 and the inner side of the rotating ring 50 are on the same conical curved surface. The angle of view of the zoom lens 4 can be increased.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. An optical device with a variable focal length lens, comprising: comprises a box body (1), a strip-shaped groove (2) is arranged in the middle of the left side of the inner wall of the box body (1), a first circular through groove (3) is arranged in the middle of the left side of the strip-shaped groove (2), the left side of the box body (1) is fixedly connected with the right end of a zoom lens (4), the zoom lens (4) and the first circular through groove (3) are collinear, a second circular through groove (5) which is coaxial with the first circular through groove (3) is arranged on the right side of the box body (1), an internal thread pipe (6) is rotatably arranged in the second circular through groove (5) through a one-way bearing, an external thread pipe (7) is arranged in the internal thread pipe (6), the left end of the external thread pipe (7) is fixedly connected with the right side of a coaxial ring gear (8), the left bearing of the ring gear (8) is connected with the right end of a coaxial transverse pipe, two first baffle plates (11) which can only move back and forth and are symmetrical front and back are movably mounted in the sliding groove (10), a first strip-shaped sliding groove (12) is formed in the top side of the sliding groove (10), two sliding blocks (13) which can only slide front and back are movably mounted in the first strip-shaped sliding groove (12), the bottom sides of the sliding blocks (13) are fixedly connected with the top sides of the corresponding first baffle plates (11), and the opposite sides of the sliding blocks (13) are fixedly connected with one corresponding ends of the first strip-shaped sliding grooves (12) through springs (14); two second baffles (15) which can only move back and forth and are symmetrical front and back are movably installed in the strip-shaped groove (2), the right side of each second baffle (15) is in friction contact fit with the left side of the corresponding first baffle (11), an inverted L-shaped sliding chute (16) is formed in the top side of the strip-shaped groove (2), two inverted L-shaped sliding rods (17) which can only move back and forth are movably installed in the inverted L-shaped sliding chutes (16), the lower ends of the inverted L-shaped sliding rods (17) are respectively and fixedly connected with the top sides of the corresponding second baffles (15), the upper ends of the inverted L-shaped sliding rods (17) respectively penetrate through the inverted L-shaped sliding chutes (16) to be located in the box body (1) and fixedly installed with a screw nut (18), the same screw rod (19) is installed in the screw nut (18) in an internal thread manner, the screw threads at the front end and the back end of the screw rod (19) are opposite in rotation direction, the two ends of the screw rod (19, a transverse shaft (21) is rotatably mounted at the top of the box body (1), a second helical gear (22) is fixedly mounted at the left end of the transverse shaft (21), the second helical gear (22) is meshed with the first helical gear (20) in a matched mode, a gear (23) is fixedly mounted at the right end of the transverse shaft (21), the gear (23) is meshed with the ring gear (8) in a matched mode, a torsion spring (60) is sleeved on the periphery of the transverse shaft (21), one end of the torsion spring (60) is fixedly connected with the transverse shaft (21), and the other end of the torsion spring is fixedly connected with the box; a second strip-shaped sliding groove (24) is formed in the bottom side of the transverse pipe (9), the left side of the second strip-shaped sliding groove (24) is communicated with the outside, a sliding rod (25) is installed in the second strip-shaped sliding groove (24) in a sliding mode, the lower end of the sliding rod (25) is fixedly connected with the box body (1), a lens (30) located on the right side of the first baffle (11) is fixedly installed in the transverse pipe (9), and an internal thread pipe (6) is fixedly installed at the bottom of the box body (1) to limit a limiting device in rotation.
2. An optical device with a variable focal length lens as claimed in claim 1, wherein: stop device include one end and box body (1) fixed connection's spring lever (26), the lower extreme of the other end fixed connection driving lever (27) of spring lever (26), the upper end on driving lever (27) right side and the left side contact cooperation of external screw tube (7), jack (28) are seted up to the left lower extreme of internal screw tube (6), upper portion fixed mounting on driving lever (27) right side and jack (28) grafting complex inserted bar (29).
3. An optical device with a variable focal length lens as claimed in claim 1, wherein: the right side of the second baffle (15) is respectively covered with a rubber layer (40).
4. An optical device with a variable focal length lens as claimed in claim 1, wherein: the two first strip-shaped sliding grooves (12) are respectively arranged on the top side and the bottom side of the sliding groove (10), sliding blocks (13) fixedly connected with the first baffle (11) are respectively arranged in the first strip-shaped sliding grooves (12), and the sliding blocks (13) are respectively fixedly connected with the corresponding first strip-shaped sliding grooves (12) through springs (14).
5. An optical device with a variable focal length lens as claimed in claim 1, wherein: the right end of the external thread pipe (7) is fixedly connected with the left side of the coaxial rotating ring (50), and decorative cracks are arranged on the periphery of the rotating ring (50).
6. An optical device with a variable focal length lens as claimed in claim 5, wherein: the ring gear (8), the external thread pipe (7) and the inner side of the rotating ring (50) are on the same conical curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010157549.7A CN111427221B (en) | 2020-03-09 | 2020-03-09 | Optical device with variable focal length lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010157549.7A CN111427221B (en) | 2020-03-09 | 2020-03-09 | Optical device with variable focal length lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111427221A CN111427221A (en) | 2020-07-17 |
| CN111427221B true CN111427221B (en) | 2021-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010157549.7A Expired - Fee Related CN111427221B (en) | 2020-03-09 | 2020-03-09 | Optical device with variable focal length lens |
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| CN (1) | CN111427221B (en) |
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| JP4819575B2 (en) * | 2006-05-26 | 2011-11-24 | キヤノン株式会社 | Imaging device |
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| JP2019191432A (en) * | 2018-04-27 | 2019-10-31 | キヤノン株式会社 | Dust removing device |
| CN209881897U (en) * | 2019-05-23 | 2019-12-31 | 技腾科技(天津)有限公司 | Protective sleeve for optical lens |
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| CN111427221A (en) | 2020-07-17 |
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