CN110913117B - Camera lens capable of being used for shooting - Google Patents
Camera lens capable of being used for shooting Download PDFInfo
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- CN110913117B CN110913117B CN201911417121.5A CN201911417121A CN110913117B CN 110913117 B CN110913117 B CN 110913117B CN 201911417121 A CN201911417121 A CN 201911417121A CN 110913117 B CN110913117 B CN 110913117B
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- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000003384 imaging method Methods 0.000 claims description 4
- 238000013016 damping Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 29
- 230000008569 process Effects 0.000 description 25
- 230000029058 respiratory gaseous exchange Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 125000001475 halogen functional group Chemical group 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
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Abstract
The invention discloses a camera lens capable of being used for shooting, which comprises a front cover, a shell, a focusing ring, an internal thread ring, an external thread ring, a support frame, a diaphragm ring, a rear lens group, a diaphragm deflector rod, a diaphragm connecting rod, a rear lens group, a diaphragm turntable, a diaphragm blade base, a scale ring, a middle lens group, a front lens group and a front lens group support frame.
Description
Technical Field
The present invention relates to a camera lens, and more particularly, to a camera lens for imaging.
Background
The camera lens is the most important component in a camera, as its quality directly affects the quality of the shot imaging. The lens is mainly divided into zooming and fixed focus, and a magnifying glass. Zoom lenses are also known as lenses that can be pushed and pulled. In addition, there is a fixed focus lens, i.e. the focal length cannot be changed to only one focal segment, or only one viewing angle.
Fixed focus lenses refer to lenses having only one fixed focal length, and no focus Duan Yi, or only one field of view. The fixed focus lens has no zooming function.
Because traditional camera lens can take place mechanical respiration in the in-process of focusing, so called mechanical respiration is when focusing the annular adjustment focus of focusing, and the axial length of camera lens can be flexible along with focusing the annular rotation camera lens of focusing, this kind of mechanical expansion just is mechanical respiration, and need block and absorb light shading fill in the camera lens tip in the photographic in-process, reduce the camera lens halation through the light that control gets into the camera lens, generally according to the angle position of photographic demand shading fill fixed already, if need focus once more in the shooting process, and camera lens has mechanical respiration, then just needs the manual work to dismantle shading fill and readjust adjust shading fill to original position this time, so make photographer's operation just loaded down with trivial details, can not adapt to photographer's shooting demand well.
When using camera lens to shoot, the photographer can often use and follow the supplementary shooting of burnt ware and be used for controlling the depth of field, but traditional camera lens, focus again and when adjusting the light ring, focusing ring and light ring can change at the axial position of camera lens, when the photographer according to shooting needs change the camera lens, shoot last time after changing the camera lens follow burnt ware gear can't mesh with newly changed camera lens, just so need the photographer to readjust the position of following burnt ware and match with newly changed camera lens, the complex operation when making the photographer change the camera lens, very troublesome.
The two-stage lens group driving mechanism is used for realizing accurate focusing and keeping definition in some camera lenses, but the existing lens is realized by adopting a mode of matching related parts with complex curved grooves, and the realization mode needs to process the curved grooves by adopting an expensive high-precision machine tool in production, so that the cost is quite high, the processing difficulty is huge, and the overall cost of the camera lens is greatly increased.
To sum up, the existing camera lens cannot well meet the requirements of photographers in the field of photography, and if the camera lens with a complex structure is directly used, the cost is greatly increased.
Disclosure of Invention
The present invention is directed to a camera lens for image capturing, which solves the above-mentioned problems.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The camera lens capable of being used for shooting comprises a front cover, a shell, a focusing ring, an internal thread ring, an external thread ring, a support frame, an aperture ring, a rear lens group, an aperture deflector rod, an aperture connecting rod, a rear lens group, an aperture turntable, an aperture blade base, a scale ring, a middle lens group, a front lens group and a front lens group support frame, wherein the front cover is arranged at the top end of the shell, a small cone is arranged at the bottom end of the shell, the external part of the shell is sequentially provided with the external thread ring, the internal thread ring and the focusing ring from inside to outside, the focusing ring is fixedly connected with the internal thread ring, the internal thread ring is rotationally connected with the outer wall of the shell, the external thread ring is connected with the internal thread ring through a first thread, the support frame is slidingly connected with the external thread ring, a first anti-rotation structure is arranged on the support frame, a focusing secondary deflector ring is rotationally connected with the inner part of the support frame, the focusing secondary deflector ring is collinear with the central axis of the support frame, the inside front mirror group supporting frame that is provided with of focusing second grade group of dialling is provided with the front mirror group in the front mirror group supporting frame, and the front mirror group passes through front mirror group locking ring cartridge in front mirror group supporting frame, and supporting frame bottom fixed mounting has the rear mirror group, is provided with middle mirror group between rear mirror group and the front mirror group, and front mirror group, middle mirror group and rear mirror group central axis collineation, middle mirror group and supporting frame fixed connection, front mirror group supporting frame top fixed mounting has the second grade of dialling adjusting ring of focusing, and the second grade of dialling adjusting ring of focusing passes through the second screw thread and is connected with the second grade of dialling of focusing, and the second grade of dialling of focusing is overlapped with the transmission ratio of first screw thread, the second grade of internal thread ring top fixed mounting has the focusing shifting block, and the second grade of focusing dialling side has the draw-in groove, and the second grade of focusing shifting block terminal stretches into the draw-in groove and with draw-in groove sliding connection, middle mirror group, A second anti-rotation structure is arranged between the front lens group and the front lens group support frame;
The outer side of the shell is also provided with a diaphragm ring and a scale ring, the scale ring is arranged between the diaphragm ring and the focusing ring, an adjusting ring is arranged between the scale ring and the internal thread ring, the scale ring is fixedly connected with the adjusting ring, the diaphragm ring is rotationally connected with the shell, the bottom of the diaphragm ring is fixedly connected with a diaphragm deflector rod, the diaphragm deflector rod is slidingly connected with a diaphragm connecting rod, the rear mirror group comprises a supporting frame and a rear mirror core, the rear mirror core is arranged at the bottom of an inner cavity of the supporting frame, an aperture rotary table and an aperture blade base are arranged in the supporting frame, the aperture rotary table is rotationally connected with the supporting frame and fixedly connected with an aperture connecting rod, and the aperture blade base is arranged above the aperture rotary table and fixedly connected with the supporting frame.
The first rotation preventing structure comprises a plurality of support frame rotation preventing holes and first rotation preventing pins matched with the support frame rotation preventing holes, the support frame rotation preventing holes are formed in the outer wall of the support frame, the first rotation preventing pins are arranged in the support frame rotation preventing holes, and the side wall of the shell is also provided with first rotation preventing matching holes matched with the first rotation preventing structure.
The second rotation preventing structure comprises a second rotation preventing matching hole, a rotation preventing screw hole, a rotation preventing sliding groove and a plurality of second rotation preventing pins matched with the rotation preventing screw hole, a plurality of second rotation preventing matching holes are formed in the side wall of the support frame, a plurality of rotation preventing sliding grooves are formed in the side face of the front lens group, a plurality of rotation preventing screw holes are formed in the side face of the middle lens group, the second rotation preventing pins sequentially penetrate through the second rotation preventing matching holes and the rotation preventing sliding grooves to be installed in the rotation preventing screw holes, the second rotation preventing pins are in sliding connection with the rotation preventing sliding grooves, and the second rotation preventing matching holes, the rotation preventing screw holes and the rotation preventing sliding grooves are in one-to-one correspondence.
The bottom of the aperture driving rod is provided with a clamping convex block, the top of the aperture connecting rod is provided with a clamping strip-shaped hole, and the clamping convex block is in sliding connection with the clamping strip-shaped hole.
The support frame of the rear mirror group is provided with an arc-shaped hole which is matched with the aperture connecting rod.
An aperture damper is arranged between the aperture ring and the scale ring.
The outer side of the shell is also provided with a PL bayonet.
The small cone is clamped at the bottom of the shell through a pressing plate.
The top of the focusing secondary dial ring adjusting ring is fixedly provided with an anti-halation front cover.
The beneficial effects of the invention are as follows:
1. When the rotating focusing ring is used for adjusting the camera lens, the rotating focusing ring rotates along with the rotating ring, the external thread ring slides along the central axis of the shell under the arrangement of the first thread, the second thread, the support frame anti-rotation hole and the anti-rotation pin, and then the support frame is driven to slide, so that the axial expansion of the lens core is realized, and the sliding of the support frame (namely the lens core) is always positioned inside the shell in the focusing process, so that the axial positions of the focusing ring and the front cover are always unchanged, and further, the mechanical respiration of the camera lens during zooming is eliminated, the problem that the camera lens is inconvenient to use due to the mechanical respiration shading bucket is solved, and the camera lens is more suitable for the operation habit of a photographer.
2. The sliding of support frame (i.e. mirror core) is located inside the casing all the time in focusing process and the light ring adjustment process, and focus ring and light ring are unchangeable at the axial position of casing, even change new camera lens, focus ring and light ring's position still remain unchanged, and the photographer need not readjust with the position of burnt ware can make with burnt ware and camera lens matching for the photographer changes the camera lens more convenient, has improved the shooting experience of photographer greatly.
3. Under the action of the focusing ring, the internal thread ring, the focusing secondary shifting block, the focusing secondary shifting ring, the external thread ring, the focusing secondary shifting ring adjusting ring, the supporting frame and the front lens group supporting frame, the rear lens group, the middle lens group and the front lens group slide upwards relative to the whole shell and simultaneously the front lens group slides downwards relative to the supporting frame; in the whole upward sliding process, the front lens group is close to the middle lens group downwards, the structure is simple, the processing and the production are easy, and in the production and the processing process of the camera lens, the accurate focusing of the secondary lens group is realized, and the cost is lower.
In summary, the invention is more suitable for the operation habit of photographers when used for shooting, so that the shooting process of the photographers is more convenient and quicker, and the cost of the invention is greatly reduced compared with that of complex camera lenses.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic cross-sectional view of the structure of FIG. 2 at E-E in accordance with the present invention;
FIG. 4 is a schematic view of the structure of the housing according to the present invention;
FIG. 5 is a schematic view of a focusing ring according to the present invention;
FIG. 6 is a schematic view of the bottom view of the internally threaded ring of the present invention;
FIG. 7 is a schematic view of the structure of an externally threaded ring according to the present invention;
FIG. 8 is a schematic view of the structure of the support frame according to the present invention;
FIG. 9 is a schematic view of a structure of an aperture ring according to the present invention;
FIG. 10 is a schematic view of an aperture lever according to the present invention;
FIG. 11 is a schematic view of the structure of the aperture connection rod according to the present invention;
FIG. 12 is a schematic view of a rear mirror assembly according to the present invention;
FIG. 13 is a schematic view of the aperture disk according to the present invention;
FIG. 14 illustrates an aperture blade mount in accordance with the present invention;
FIG. 15 is a schematic view of the structure of the dial ring according to the present invention;
FIG. 16 is a schematic view of the adjusting ring of the present invention;
FIG. 17 is a schematic view of a front lens assembly locking ring according to the present invention;
FIG. 18 is a schematic view of a focusing secondary dial in the present invention;
FIG. 19 is a schematic view of a focus secondary dial ring according to the present invention;
FIG. 20 is a schematic view of a focus secondary dial ring adjustment ring according to the present invention;
FIG. 21 is a schematic view of the structure of a front lens assembly holder according to the present invention;
FIG. 22 is a schematic top view of an externally threaded ring according to the present invention;
FIG. 23 is an exploded view of an assembly of the intermediate lens group, front lens group and front lens group holder of the present invention;
fig. 24 is an exploded view of the assembly of the present invention.
In the figure: front cover 1, housing 2, second front cover mounting hole 2.2, first anti-rotation matching hole 2.3, focus ring 3, first female screw ring fixing hole 3.1, female screw ring 4, second female screw ring fixing hole 4.2, first focus secondary shift block mounting hole 4.3, male screw ring 5, first support frame fixing hole 5.1, support frame 6, second support frame fixing hole 6.2, support frame anti-rotation hole 6.3, first rear mirror group mounting hole 6.4, second anti-rotation matching hole 6.5, aperture ring 7, first aperture shift lever mounting hole 7.1, aperture shift lever 8, second aperture shift lever mounting hole 8.1, clamping bump 8.2, aperture rod 9, first aperture rotary table fixing hole 9.1 the device comprises a clamping strip-shaped hole 9.2, a rear lens group 10, an arc-shaped hole 10.1, a second rear lens group mounting hole 10.4, a diaphragm rotary table 11, a second diaphragm rotary table fixing hole 11.1, a diaphragm blade base 12, a scale ring 13, a diaphragm damping 14, a PL bayonet 15, an adjusting ring 16, a middle lens group 17, an anti-rotation screw hole 17.1, a front lens group 18, an anti-rotation sliding groove 18.1, a front lens group locking ring 19, a focusing secondary shifting block 20, a second focusing secondary shifting block mounting hole 20.3, a focusing secondary shifting ring 21, a clamping groove 21.1, a focusing secondary shifting ring adjusting ring 22, a front lens group supporting frame 23, a small cone 24, a pressing plate 25, an anti-halo front cover 26, a first anti-rotation pin 27 and a second anti-rotation pin 28.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.
Referring to fig. 1 to 24, in an embodiment of the present invention, a camera lens for image capturing is provided, which includes a front cover 1, a housing 2, a focusing ring 3, an internally threaded ring 4, an externally threaded ring 5, a support frame 6, a diaphragm ring 7, a rear lens group 10, a diaphragm driving lever 8, a diaphragm connecting lever 9, a rear lens group 10, a diaphragm turntable 11, a diaphragm blade base 12, a scale ring 13, a middle lens group 17, a front lens group 18 and a front lens group support frame 23.
1. Focusing the camera lens:
The front shroud 1 is installed on casing 2 top, and little cone 24 is installed through clamp plate 25 to casing 2 bottom, be provided with a plurality of first front shroud mounting holes on the front shroud 1, be provided with a plurality of second front shroud mounting holes 2.2 on the casing 2, first front shroud mounting hole and second front shroud mounting hole 2.2 one-to-one set up, insert first front shroud mounting hole and second front shroud mounting hole 2.2 through the screw in the assembly process and carry out fixed mounting (refer to fig. 3 and 4), and be used for blockking and absorb the light shielding fill is installed in the front shroud 1 outside in photographic process.
The outside of the shell 2 is provided with an external thread ring 5, an internal thread ring 4 and a focusing ring 3 from inside to outside.
The focusing ring 3 is fixedly connected with the internal thread ring 4, a plurality of first internal thread ring fixing holes 3.1 are formed in the focusing ring 3, a plurality of second internal thread ring fixing holes 4.2 are formed in the internal thread ring 4, the first internal thread ring fixing holes 3.1 and the second internal thread ring fixing holes 4.2 are in one-to-one correspondence, and the first internal thread ring fixing holes 3.1 and the second internal thread ring fixing holes 4.2 are inserted through screws in the assembly process for fixing and mounting (refer to fig. 3, 5 and 6).
The inner threaded ring 4 is rotationally connected with the outer wall of the shell 2, a gap exists between the shell 2 and the inner threaded ring 4, the outer threaded ring 5 can slide back and forth in the gap, the inner wall of the outer threaded ring 5 is in sliding connection with the shell 2, and the outer threaded ring 5 is connected with the inner threaded ring 4 through first threads.
The inner wall sliding connection of casing 2 has support frame 6, support frame 6 and external screw thread ring 5 fixed connection, be provided with first support frame fixed orifices 5.1 on the external screw thread ring 5, be provided with a plurality of second support frame fixed orifices 6.2 on the support frame 6, first support frame fixed orifices 5.1 and second support frame fixed orifices 6.2 one-to-one set up, insert first support frame fixed orifices 5.1 and second support frame fixed orifices 6.2 through the screw in the assembly process in and carry out fixed mounting (refer to fig. 3, fig. 7 and fig. 8).
The outer wall of the support frame 6 is provided with a support frame anti-rotation hole 6.3, a first anti-rotation pin 27 (refer to fig. 8) is installed in the support frame anti-rotation hole 6.3, and a first anti-rotation matching hole 2.3 (refer to fig. 4 and 24) matched with the first anti-rotation pin is also formed in the side wall of the shell 2.
When the rotary focusing ring 3 adjusts the camera lens, the rotary focusing ring 3 and the internal thread ring 4 rotate along with the rotary focusing ring, the external thread ring 5 slides along the central axis of the shell 2 under the arrangement of the first thread, the support frame anti-rotation hole 6.3 and the first anti-rotation pin 27, so as to drive the support frame 6 to slide (the support frame 6 can not rotate and only slide due to the arrangement of the first anti-rotation pin 27), and the lens core of the camera lens, namely the rear lens group 10, the middle lens group 17 and the front lens group 18, integrally slide along with the support frame 6, so that the axial expansion and contraction of the lens core are realized, the sliding of the support frame 6 (namely the lens core) is always positioned in the shell 2 in the focusing process, and the axial positions of the focusing ring 3 and the front cover 1 are always kept unchanged, so that the mechanical respiration of the camera lens during focusing is eliminated.
The support frame 6 is internally connected with a focusing secondary shifting ring 21 in a rotating way, the focusing secondary shifting ring 21 is collinear with the central axis of the support frame 6, a front lens group support frame 23 is arranged in the focusing secondary shifting ring 21, a front lens group 18 is arranged in the front lens group support frame 23, the front lens group 18 is clamped in the front lens group support frame 23 through a front lens group locking ring 19, a rear lens group 10 is fixedly arranged at the bottom of the support frame 6, an intermediate lens group 17 is arranged between the rear lens group 10 and the front lens group 18, central axes of the front lens group 18, the intermediate lens group 17 and the rear lens group 10 are collinear, the intermediate lens group 17 is fixedly connected with the support frame 6, a plurality of first rear lens group mounting holes 6.4 are arranged at the bottom of the support frame 6, a plurality of second rear lens group mounting holes 10.4 are arranged on the rear lens group 10, the first rear lens group mounting holes 6.4 and the second rear lens group mounting holes 10.4 are arranged in a one-to-one correspondence manner, and in the assembly process, and the first rear lens group mounting holes 6.4 and the second rear lens group mounting holes 10.4 are fixedly arranged in a one-to-one correspondence manner through screws (fig. 3, 8 and fig. 12).
The top of the front lens group support frame 23 is fixedly provided with (through screw connection) a focusing secondary shifting ring adjusting ring 22 (the front lens group support frame 23 and the focusing secondary shifting ring adjusting ring 22 are integrally only axially and linearly moved and do not rotate), the focusing secondary shifting ring adjusting ring 22 is connected with the focusing secondary shifting ring 21 through a second thread, and the transmission ratio (speed ratio) of the second thread and the first thread is different (so that when the focusing ring 3 is rotated, the front lens group 18 slides with different speeds with the middle lens group 17 and the rear lens group 10 to play a secondary adjusting function).
The top of the focus secondary dial ring adjusting ring 22 is also fixedly provided with an anti-halation front cover 26.
The top of the internal thread ring 4 is fixedly provided with a focusing secondary shifting block 20, the top of the internal thread ring 4 is provided with a plurality of first focusing secondary shifting block mounting holes 4.3, a plurality of second focusing secondary shifting block mounting holes 20.3 are formed in the focusing secondary shifting block 20, the first focusing secondary shifting block mounting holes 4.3 and the second focusing secondary shifting block mounting holes 20.3 are arranged in one-to-one correspondence, and the first focusing secondary shifting block mounting holes 4.3 and the second focusing secondary shifting block mounting holes 20.3 are inserted into each other through screws in the assembling process for fixed mounting (refer to fig. 3, 18 and 22).
The side surface of the focusing secondary shifting ring 21 is provided with a clamping groove 21.1, the tail end of the focusing secondary shifting block 20 stretches into the clamping groove 21.1 and is in sliding connection with the clamping groove 21.1 (when the support frame 6 moves, the focusing secondary shifting block 20 can axially slide in the clamping groove 21.1 to offset axial displacement), a second anti-rotation structure is further arranged among the middle lens group 17, the front lens group 18 and the front lens group support frame 23 and comprises a second anti-rotation matching hole 6.5, an anti-rotation screw hole 17.1, an anti-rotation sliding groove 18.1 and a plurality of second anti-rotation pins 28 matched with the anti-rotation screw hole 17.1, the side wall of the support frame 6 is provided with a plurality of second anti-rotation matching holes 6.5, the side of the front lens group 18 is provided with a plurality of anti-rotation sliding grooves 18.1, the side of the middle lens group 17 is provided with a plurality of anti-rotation screw holes 17.1, the second anti-rotation pin 28 sequentially penetrates through the second anti-rotation matching holes 6.5 and the anti-rotation sliding grooves 18.1 to be installed in the anti-rotation screw holes 17.1, the first anti-rotation pin 28 is in sliding connection with the anti-rotation sliding grooves 18.1 (sliding can be used for matching the position difference of the front lens group 18, the middle lens group 17 and the rear lens group 10 due to different displacement rates when adjusting the focal length), and the second anti-rotation matching holes 6.5, the anti-rotation screw holes 17.1 and the anti-rotation sliding grooves 18.1 are arranged in a one-to-one correspondence manner (refer to fig. 3, 19, 23 and 24).
The middle lens group 17 and the rear lens group 10 move integrally with the support frame 6, and the front lens group 18 and the front lens group support frame 23 have a movement trend of approaching or separating the middle lens group 17 according to different transmission ratios when the support frame 6 moves integrally.
Working principle:
Referring to fig. 3, upon focusing the camera lens:
1) A rotary focus ring 3;
2) (X) the internal thread ring 4 rotates along with it (Y) the focusing secondary shifting block 20 on the internal thread ring 4 rotates synchronously, and the focusing secondary shifting ring 21 rotates along with it;
3) (X) the externally threaded ring 5 slides up the central axis of the housing 2 (Y) the focus secondary dial ring adjustment ring 22 slides up the central axis of the housing 2 and (X) slides at a different rate;
4) (X) upward sliding of the holder 6 relative to the housing 2 (Y) due to the different transmission ratio of the first thread and the second thread, the front lens group holder 23 slides downward relative to the holder 6 while the front lens group holder 23 slides upward relative to the housing 2 with the holder 6-the function of lens focusing is achieved;
5) (X) the rear lens group 10, the intermediate lens group 17 and the front lens group 18 slide upward (Y) the front lens group 18 downward with respect to the holder 6 integrally with respect to the housing 2; i.e. during the entire upward sliding movement, the front lens group 18 approaches down towards the intermediate lens group 17.
6) The accurate focusing function of the camera lens is realized.
X-integral movement process of the lens core relative to the shell 2; y—secondary adjustment procedure of the front lens group 17 with respect to the support 6.
The structure is simple, the processing production is easy, and in the production and processing process of the camera lens, the accurate focusing of the secondary lens group is realized, and the cost is lower.
2. Camera lens aperture adjustment:
the outer side of the shell 2 is also provided with the aperture ring 7 and the scale ring 13, the scale ring 13 is arranged between the aperture ring 7 and the focusing ring 3, an adjusting ring 16 is arranged between the scale ring 13 and the internal thread ring 4, the scale ring 13 is fixedly connected with the adjusting ring 16, a plurality of first scale ring mounting holes are formed in the adjusting ring 16, and a second scale ring mounting hole is formed in the scale ring 13, so that the fixed mounting of the scale ring 13 and the adjusting ring 16 is more convenient in the assembly process, and the assembly difficulty is reduced.
The aperture ring 7 is rotationally connected with the shell 2, an aperture deflector rod 8 is fixedly connected to the bottom of the aperture ring 7, an aperture connecting rod 9 is slidably connected to the aperture deflector rod 8, a clamping protruding block 8.2 is arranged at the bottom of the aperture deflector rod 8, a clamping strip-shaped hole 9.2 is arranged at the top of the aperture connecting rod 9, the clamping protruding block 8.2 is slidably connected with the clamping strip-shaped hole 9.2, the support frame 6 axially reciprocates along the shell 2 in the process of adjusting the focusing ring 3, the rear mirror group 10 also slides along with the support frame 6, at the moment, the axial position of the aperture ring 7 is unchanged, the clamping protruding block 8.2 adaptively slides in the clamping strip-shaped hole 9.2, and further, the aperture adjustment can still be realized by rotating the aperture ring 7 in the focusing process, and the axial positions of the aperture ring 7 and the focusing ring 3 are unchanged.
The aperture ring 7 is provided with a plurality of first aperture driving lever mounting holes 7.1, the top end of the aperture driving lever 8 is provided with a plurality of second aperture driving lever mounting holes 8.1, the first aperture driving lever mounting holes 7.1 and the second aperture driving lever mounting holes 8.1 are arranged in one-to-one correspondence, and the first aperture driving lever mounting holes 7.1 and the second aperture driving lever mounting holes 8.1 are fixedly mounted by inserting screws in the assembly process (refer to fig. 3, 9 and 10).
The rear mirror group 10 (refer to fig. 3 and 12) comprises a supporting frame and a rear mirror core, the rear mirror core is installed at the bottom of an inner cavity of the supporting frame, an aperture rotary table 11 and an aperture blade base 12 (refer to fig. 3, 13 and 14) are arranged in the supporting frame, the aperture rotary table 11 is rotationally connected with the supporting frame, a plurality of first aperture rotary table fixing holes 9.1 are formed in the bottom end of an aperture connecting rod 9.1, a plurality of second aperture rotary table fixing holes 11.1 are formed in the aperture rotary table 11, the first aperture rotary table fixing holes 9.1 and the second aperture rotary table fixing holes 11.1 are in one-to-one correspondence, the first aperture rotary table fixing holes 9.1 and the second aperture rotary table fixing holes 11.1 are fixedly installed in the supporting frame through screws (refer to fig. 3, 11 and 13), an arc-shaped hole 10.1 is formed in the supporting frame of the rear mirror group 10, the arc-shaped hole 10.1 is matched with the aperture connecting rod 9, the aperture rotary table 7 drives the aperture rotary table 8 to rotate when the aperture rotary table 11 is used for adjusting the aperture size, and the aperture rotary table 9 and the aperture rotary table 11 are driven to rotate, and the aperture rotary table 11 are fixedly connected with the aperture rotary table 11 through the arc connecting rod 11.
The diaphragm turntable 11 is provided with a diaphragm blade base 12 (refer to fig. 15) above, the diaphragm blade base 12 is fixedly connected with the supporting frame, a through hole is formed in the center of the diaphragm blade base 12, a plurality of strip-shaped holes (12-17) are formed in the radial direction of the through hole and used for installing the diaphragm blades, the diaphragm blades are installed between the diaphragm blade base 12 and the diaphragm turntable 11, the diaphragm turntable 11 is installed by adopting an assembly method well known to those skilled in the art, and the diaphragm turntable 11 is rotatably driven to open and close so as to adjust the size of the diaphragm.
An aperture damper 14 is arranged between the aperture ring 7 and the scale ring 13.
The outer side of the shell 2 is also provided with a PL bayonet 15, and the PL bayonet 15 is a film lens transfer bayonet for lens replacement, and the lens is generally locked by clockwise rotation.
Adjustment process (aperture adjustment and lens focus do not interfere with each other):
Focusing: the focusing function of the lens is realized by rotating the focusing ring 3, rotating the internal thread ring 4 along with the internal thread ring, sliding the external thread ring 5 along the central axis of the shell 2, sliding the supporting frame 6 (the clamping convex block 8.2 adaptively slides in the clamping strip-shaped hole 9.2 to ensure the aperture adjusting function), and stretching the axis of the lens core.
The aperture adjusting process comprises the following steps: the lens aperture adjusting function is realized by rotating the aperture ring 7, rotating the aperture deflector rod 8, rotating the aperture connecting rod 9 and the aperture turntable 11, and opening and closing the aperture blades.
The sliding (i.e. the lens core) of the support frame 6 is always positioned in the shell 2 in the focusing process and the aperture adjusting process, and the axial positions of the focusing ring 3 and the aperture ring 7 in the shell 2 are unchanged, so that the positions of the focusing ring 3 and the aperture ring 7 are unchanged even if new lenses are replaced, a photographer does not need to readjust the position of the focus follower, and the focus follower can be matched with a camera lens, so that the camera is more convenient to replace the lenses, and the shooting experience of the photographer is greatly improved.
The foregoing is merely a preferred embodiment of the invention, and it is to be understood that the invention is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
Claims (7)
1. The utility model provides a camera lens for making a video recording, includes front shroud (1), casing (2), focusing ring (3), internal thread ring (4), external thread ring (5), support frame (6), aperture ring (7), aperture driving lever (8), aperture extension pole (9), rear lens group (10), aperture carousel (11), aperture blade base (12), scale ring (13), middle lens group (17), front lens group (18) and front lens group support frame (23), front shroud (1) is installed on casing (2) top, and small cone (24) are installed on casing (2) bottom, and casing (2) outside has set gradually external thread ring (5), internal thread ring (4) and focusing ring (3) from inside to outside, and focusing ring (3) and internal thread ring (4) fixed connection, and internal thread ring (4) are connected with casing (2) outer wall rotation, and external thread ring (5) are connected through first screw thread, and casing (2) inner wall sliding connection has support frame (6), support frame (6) and external thread ring (5) fixed connection, and support frame (6) are provided with first rotation preventing frame (21) and are connected with the second stage of rotation, the two-stage shifting ring (21) focuses on the collineation of the central axis of second-stage shifting ring (21) and support frame (6), the two-stage shifting ring (21) focuses on inside front mirror group support frame (23), be provided with front mirror group (18) in front mirror group support frame (23) in front mirror group support frame (18), front mirror group (18) are installed in front mirror group support frame (23) through front mirror group locking ring (19) clamping, support frame (6) bottom fixed mounting has rear mirror group (10), be provided with middle mirror group (17) between rear mirror group (10) and front mirror group (18), middle mirror group (17) and rear mirror group (10) central axis collineation, middle mirror group (17) and support frame (6) fixed connection, two-stage shifting ring (22) focus are installed at front mirror group support frame (23) top fixed mounting, two-stage shifting ring (22) focus through second screw thread and two-stage shifting ring (21) are connected, the second screw thread is different with the transmission ratio of first screw thread, two-stage shifting block (21) top fixed mounting has two-stage shifting block (20), two-stage shifting block (21) and two-stage shifting ring (21) stretch into the end (21), and the end (1.1) stretches into in groove (1.1.1) sliding groove A second anti-rotation structure is also arranged between the front lens group (18) and the front lens group support frame (23);
An aperture ring (7) and a scale ring (13) are further arranged on the outer side of the shell (2), the scale ring (13) is arranged between the aperture ring (7) and the focusing ring (3), an adjusting ring (16) is arranged between the scale ring (13) and the internal thread ring (4), the scale ring (13) is fixedly connected with the adjusting ring (16), the aperture ring (7) is rotationally connected with the shell (2), an aperture deflector rod (8) is fixedly connected to the bottom of the aperture ring (7), an aperture connecting rod (9) is slidingly connected with the aperture deflector rod (8), the rear mirror group (10) comprises a supporting frame and a rear mirror core, the rear mirror core is arranged at the bottom of an inner cavity of the supporting frame, an aperture turntable (11) and an aperture blade base (12) are arranged in the supporting frame, the aperture turntable (11) is rotationally connected with the supporting frame and is fixedly connected with the aperture connecting rod (9), and an aperture blade base (12) is arranged above the aperture turntable (11).
The first anti-rotation structure comprises a plurality of support frame anti-rotation holes (6.3) and first anti-rotation pins (27) matched with the support frame anti-rotation holes (6.3), the support frame anti-rotation holes (6.3) are all formed in the outer wall of the support frame (6), the first anti-rotation pins (27) are arranged in the support frame anti-rotation holes (6.3), and first anti-rotation matching holes (2.3) matched with the first anti-rotation structure are formed in the side wall of the shell (2);
The second anti-rotation structure comprises a second anti-rotation matching hole (6.5), an anti-rotation screw hole (17.1), an anti-rotation sliding groove (18.1) and a plurality of second anti-rotation pins (28) matched with the anti-rotation screw hole (17.1), a plurality of second anti-rotation matching holes (6.5) are formed in the side wall of the support frame (6), a plurality of anti-rotation sliding grooves (18.1) are formed in the side face of the front lens group (18), a plurality of anti-rotation screw holes (17.1) are formed in the side face of the middle lens group (17), the second anti-rotation pins (28) sequentially penetrate through the second anti-rotation matching hole (6.5) and the anti-rotation sliding grooves (18.1), and the second anti-rotation pins (28) are in sliding connection with the anti-rotation sliding grooves (18.1), and the second anti-rotation matching holes (6.5), the anti-rotation screw holes (17.1) and the anti-rotation sliding grooves (18.1) are arranged in one-to-one correspondence.
2. A camera lens for photography according to claim 1, characterized in that the bottom of the aperture driving lever (8) is provided with a clamping projection (8.2), the top of the aperture driving lever (9) is provided with a clamping bar-shaped hole (9.2), and the clamping projection (8.2) is slidably connected with the clamping bar-shaped hole (9.2).
3. A camera lens for photography according to claim 1, characterized in that the support frame of the rear mirror group (10) is provided with an arc-shaped hole (10.1), and the arc-shaped hole (10.1) is arranged in a matching manner with the aperture connecting rod (9).
4. A camera lens for imaging according to claim 1, characterized in that an aperture damping (14) is arranged between the aperture ring (7) and the scale ring (13).
5. A camera lens for imaging according to claim 1, characterized in that the housing (2) is further provided with PL bayonet (15) on the outside.
6. A camera lens for taking pictures according to claim 1, characterized in that the small cone (24) is clamped to the bottom of the housing (2) by means of a press plate (25).
7. A camera lens for photography according to claim 1, wherein an anti-halation front cover (26) is fixedly mounted on top of the focus secondary dial ring adjusting ring (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911417121.5A CN110913117B (en) | 2019-12-31 | 2019-12-31 | Camera lens capable of being used for shooting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911417121.5A CN110913117B (en) | 2019-12-31 | 2019-12-31 | Camera lens capable of being used for shooting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110913117A CN110913117A (en) | 2020-03-24 |
| CN110913117B true CN110913117B (en) | 2024-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911417121.5A Active CN110913117B (en) | 2019-12-31 | 2019-12-31 | Camera lens capable of being used for shooting |
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| Country | Link |
|---|---|
| CN (1) | CN110913117B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB661427A (en) * | 1948-05-28 | 1951-11-21 | Kodak Ltd | Improvements in or relating to photographic objective mounts |
| CN1769997A (en) * | 2004-11-03 | 2006-05-10 | 乐金电子(中国)研究开发中心有限公司 | Portable terminal camera device capable of realizing optical zoom function |
| CN1940620A (en) * | 2005-09-30 | 2007-04-04 | 鸿富锦精密工业（深圳）有限公司 | Automatically-focusing digital-camera mould set |
| CN102928952A (en) * | 2012-10-20 | 2013-02-13 | 中山联合光电科技有限公司 | Mechanical device for high-definition mobile phone lens |
| CN204362173U (en) * | 2015-02-06 | 2015-05-27 | 北京经纬恒润科技有限公司 | A kind of vehicle-mounted camera of focus adjustable |
-
2019
- 2019-12-31 CN CN201911417121.5A patent/CN110913117B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB661427A (en) * | 1948-05-28 | 1951-11-21 | Kodak Ltd | Improvements in or relating to photographic objective mounts |
| CN1769997A (en) * | 2004-11-03 | 2006-05-10 | 乐金电子(中国)研究开发中心有限公司 | Portable terminal camera device capable of realizing optical zoom function |
| CN1940620A (en) * | 2005-09-30 | 2007-04-04 | 鸿富锦精密工业（深圳）有限公司 | Automatically-focusing digital-camera mould set |
| CN102928952A (en) * | 2012-10-20 | 2013-02-13 | 中山联合光电科技有限公司 | Mechanical device for high-definition mobile phone lens |
| CN204362173U (en) * | 2015-02-06 | 2015-05-27 | 北京经纬恒润科技有限公司 | A kind of vehicle-mounted camera of focus adjustable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110913117A (en) | 2020-03-24 |
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