CN116300014A - Two-gear switching type zoom lens structure - Google Patents
Two-gear switching type zoom lens structure Download PDFInfo
- Publication number
- CN116300014A CN116300014A CN202211566472.4A CN202211566472A CN116300014A CN 116300014 A CN116300014 A CN 116300014A CN 202211566472 A CN202211566472 A CN 202211566472A CN 116300014 A CN116300014 A CN 116300014A
- Authority
- CN
- China
- Prior art keywords
- switching
- lens
- diaphragm
- focusing
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 8
- 230000005499 meniscus Effects 0.000 claims description 19
- 238000003825 pressing Methods 0.000 claims description 15
- 125000005647 linker group Chemical group 0.000 claims description 9
- 238000004026 adhesive bonding Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000005622 photoelectricity Effects 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 6
- 238000003384 imaging method Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/143—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
-
- 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
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/02—Diaphragms
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The invention relates to the field of photoelectricity, in particular to a two-gear switching type zoom lens structure, which comprises a focusing assembly, a two-gear switching assembly, a rear fixing assembly and a camera assembly which are sequentially connected along the incident direction of light rays; a focusing lens group is arranged in the focusing assembly, and the focusing lens group comprises two groups of optical lenses; the two-gear switching assembly is internally provided with two-gear switching lens groups, wherein the two-gear switching lens groups adopt a group of zoom lens groups and consist of two groups of lenses; the variable diaphragm assembly is arranged in the fixed assembly, a rear fixed lens group is fixed in the variable diaphragm assembly, and the rear fixed lens group comprises four groups of lenses. The lens adopts a mode of zooming structural design to realize two-gear switching of large/small view fields and can realize six-gear control on the size of the opening of the diaphragm.
Description
Technical Field
The invention relates to the field of photoelectricity, in particular to a two-gear switching type zoom lens structure.
Background
The existing lens generally does not meet the detection of a large field of view of a long-distance target, and meets the requirements of resolution capability for detecting details of a small field of view target, and guaranteeing focal length and imaging quality. For this reason, a two-shift switching zoom lens is required.
Disclosure of Invention
The invention aims to provide a two-gear switching type zoom lens structure, which adopts a zoom structure design mode to realize two-gear switching of large/small view fields and can realize control of the size of an opening of a diaphragm.
The technical scheme of the invention is as follows: a two-gear switching type zoom lens structure comprises a focusing assembly, a two-gear switching assembly, a rear fixing assembly and a camera assembly which are sequentially connected along the incident direction of light rays; a focusing lens group is arranged in the focusing assembly, and the focusing lens group comprises two groups of optical lenses; the two-gear switching assembly is internally provided with two-gear switching lens groups, wherein the two-gear switching lens groups adopt a group of zoom lens groups and consist of two groups of lenses; the variable diaphragm assembly is arranged in the fixed assembly, a rear fixed lens group is fixed in the variable diaphragm assembly, and the rear fixed lens group comprises four groups of lenses.
Further, the focusing lens group consists of a bonding group formed by sequentially arranging a biconvex lens A1, a biconvex lens A2 and a biconcave lens A3 in close contact along the light from left to right; the two-gear switching lens group consists of a gluing group and a biconcave lens B3, wherein the gluing group is formed by closely connecting a negative meniscus lens B1 and a positive meniscus lens B2 which are sequentially arranged; the rear fixed lens group consists of a bonding group, a biconcave lens C4 and a biconvex lens C5 which are sequentially arranged, wherein the bonding group is formed by closely connecting a biconvex lens C1, a negative meniscus lens C2 and a biconvex lens C3.
Further, the air space between the biconvex lens A1 and the biconvex lens A2 is 0.1mm, the air space between the biconcave lens A3 and the biconcave lens B1 is 52.7mm, the air space between the positive meniscus lens B2 and the biconcave lens B3 is 2.5mm, the air space between the biconcave lens B3 and the biconvex lens C1 is 4.3mm, the air space between the biconvex lens C1 and the negative meniscus lens C2 is 0.1mm, the air space between the biconvex lens C3 and the biconcave lens C4 is 1.3mm, and the air space between the biconcave lens C4 and the biconvex lens C5 is 9.1mm.
Further, the focusing assembly comprises a focusing main lens barrel, a front lens barrel used for installing a focusing lens group is arranged in the focusing main lens barrel, a focusing cam is sleeved on the focusing main lens barrel, a focusing limit switch, a focusing motor and a focusing potentiometer are arranged on the side of the focusing main lens barrel and are in gear engagement transmission with the focusing cam, the focusing cam drives the front lens barrel to move back and forth through a focusing guide pin assembly, and a focusing limit pin matched with the focusing limit switch is arranged on the focusing cam.
Further, three focusing straight grooves are uniformly distributed on the focusing main lens barrel, three linear chute are uniformly distributed on the focusing cam, and the Jiao Daoding component is fixed on the front lens barrel and penetrates through the focusing straight grooves to extend into the linear chute.
Further, the two-gear switching assembly comprises a switching main lens barrel, a switching sliding frame is arranged in the switching main lens barrel, a switching lens barrel for installing the two-gear switching lens group is arranged in the switching sliding frame, a switching cam is sleeved on the switching main lens barrel, the switching cam drives the switching framework to move back and forth through a switching guide pin assembly, a switching limit switch, a switching motor and a switching potentiometer are arranged at the side of the main lens barrel and are in gear engagement transmission with the switching cam, and a zooming limit pin matched with the switching micro switch is arranged on the switching cam.
Further, the two-gear switching lens group is fixed in the switching lens cone through a switching lens group pressing ring, the switching lens cone is installed in the switching sliding frame in a threaded connection mode, the switching sliding frame is in grinding fit with the main lens cone, and the switching cam is arranged on the switching main lens cone through steel balls and forms a rolling bearing and is locked by the switching cam pressing ring.
Further, two switching straight grooves are formed in the switching main lens barrel, two variable-magnification curve grooves are formed in the switching cam, and the switching guide pin assembly is fixed to the switching framework and penetrates through the switching straight grooves to extend into the variable-magnification curve grooves.
Further, the variable diaphragm assembly comprises a diaphragm seat, the rear fixed lens group is installed in the diaphragm seat, a diaphragm adjusting ring matched with the diaphragm seat and a diaphragm moving ring provided with a diaphragm sheet are arranged on the diaphragm seat, the diaphragm adjusting ring is meshed with a gear of a diaphragm motor through the gear, a diaphragm potentiometer meshed with the diaphragm adjusting ring through a diaphragm passing wheel on the gear and the diaphragm seat is arranged on the diaphragm seat, a diaphragm limit switch used for limiting the size of a diaphragm opening is further arranged on the diaphragm seat, and diaphragm limit nails matched with the diaphragm limit switch are arranged on the diaphragm adjusting ring.
Further, the diaphragm sheet is connected and arranged between the diaphragm moving ring and the diaphragm seat through rivets, and the diaphragm moving ring is fixed on the diaphragm seat through a diaphragm moving ring pressing ring; the diaphragm adjusting ring is locked on the diaphragm seat by a diaphragm adjusting ring pressing ring, and the diaphragm adjusting ring drives the diaphragm moving ring to rotate through the cooperation of the diaphragm adjusting ring and a diaphragm poking nail fixed on the diaphragm moving ring.
Compared with the prior art, the invention has the following advantages:
1. the two-gear switching zoom lens is designed in a zooming structural design mode, and can meet the requirement of imaging stability in the large/small visual field switching process, and the two-gear fast switching is realized through a fast motor; and has stronger identification capability to moving objects.
2. The optical system is provided with an electric variable diaphragm component, and meanwhile, six-gear control on the opening size of the diaphragm can be realized by arranging a rotary potentiometer in the mechanism.
Drawings
FIG. 1 is a schematic diagram of an optical system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a structural system according to an embodiment of the present invention
FIG. 3 is a perspective view of a focusing assembly according to an embodiment of the present invention;
FIG. 4 is a side view of a focus assembly according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a focus assembly according to an embodiment of the present invention;
FIG. 6 is a perspective view of a two-speed switching assembly according to an embodiment of the present invention;
FIG. 7 is a side view of a two-speed switching assembly according to an embodiment of the present invention;
FIG. 8 is a cross-sectional view of a two-speed switching assembly according to an embodiment of the present invention;
FIG. 9 is a perspective view of a variable diaphragm assembly according to an embodiment of the present invention;
FIG. 10 is a side view of a variable diaphragm assembly according to an embodiment of the present invention;
FIG. 11 is a cross-sectional view of a variable diaphragm assembly according to an embodiment of the present invention;
in the figure: a-focusing lens group; a1-a biconvex lens A1; a2-a lenticular lens A2; a3-biconcave lens A3;
b-two-gear switching lens group; b1-a negative meniscus lens B1; b2—a positive meniscus lens B2; b3-biconcave lens B3;
c-fixing the lens group; c1-a lenticular lens C1; c2-a negative meniscus lens C2; c3-lenticular lens C3; a C4-biconcave lens C4; c5-lenticular lens C5;
10-focusing assembly; 101-a linear chute; 102-focusing cam spacer; 103-front group barrel; 104-focusing a cam; 105-focusing guide pin assembly; 106-focusing a main lens barrel; 107-focusing potentiometer; 108-focusing motor; 109-focusing limit switch; 110-focusing limit nails;
20-two-gear switching assembly; 201-switching a potentiometer; 202-switching the main barrel; 203-switching the motor; 204-switching a lens group clamping ring; 205-variable-magnification curve groove; 206-switching the lens barrel; 207-switching the guide pin assembly; 208-switching carriages; 209-switching cams; 210-switching cam rings; 211-switching a limit switch; 212-zooming limiting nails;
30-a variable diaphragm assembly; 301-diaphragm potentiometer; 302-passing through the axle of the diaphragm; 303-diaphragm passing wheel; 304-diaphragm motor; 305-diaphragm spacing nails; 306-a diaphragm ring; 307-diaphragm seat; 308-diaphragm moving ring pressing ring; 309-diaphragm adjusting ring; 310-diaphragm adjusting ring pressing ring; 311-diaphragm limit switch;
40-camera assembly.
Detailed Description
In order to make the above features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.
Referring to fig. 1 to 11
The two-gear switching type zoom lens structure comprises a focusing assembly 10, a two-gear switching assembly 20, a rear fixing assembly 30 and a camera assembly 40 which are sequentially connected along the incidence direction of light rays; a focusing lens group A is arranged in the focusing assembly, and the focusing lens group comprises two groups of optical lenses; the two-gear switching assembly is internally provided with a two-gear switching lens group B, and the two-gear switching lens group adopts a group of zoom lens group and consists of two groups of lenses; the variable diaphragm assembly is arranged in the fixed assembly, a rear fixed lens group C is fixed in the variable diaphragm assembly, and the rear fixed lens group comprises four groups of lenses.
In this embodiment, the focusing lens group is composed of a bonding group formed by sequentially setting a biconvex lens A1, a biconvex lens A2 and a biconcave lens A3 in close contact along the light from left to right; the two-gear switching lens group consists of a gluing group and a biconcave lens B3, wherein the gluing group is formed by closely connecting a negative meniscus lens B1 and a positive meniscus lens B2 which are sequentially arranged; the rear fixed lens group consists of a bonding group, a biconcave lens C4 and a biconvex lens C5 which are sequentially arranged, wherein the bonding group is formed by closely connecting a biconvex lens C1, a negative meniscus lens C2 and a biconvex lens C3.
Imaging time: the light rays sequentially pass through the focusing lens group, the two-gear switching lens group and the rear fixed lens group from left to right and then are imaged.
In this embodiment, the air space between the biconvex lens A1 and the biconvex lens A2 is 0.1mm, the air space between the biconcave lens A3 and the biconcave lens B1 is 52.7mm, the air space between the positive meniscus lens B2 and the biconcave lens B3 is 2.5mm, the air space between the biconcave lens B3 and the biconvex lens C1 is 4.3mm, the air space between the biconvex lens C1 and the negative meniscus lens C2 is 0.1mm, the air space between the biconvex lens C3 and the biconcave lens C4 is 1.3mm, and the air space between the biconcave lens C4 and the biconvex lens C5 is 9.1mm.
In this embodiment, the lens parameters of the focusing lens group, the two-stage switching lens group and the rear fixed lens group are shown in table 1 below:
in this embodiment, the focusing assembly includes a focusing main lens barrel 106, a front lens barrel 103 for mounting a focusing lens group is disposed in the focusing main lens barrel, a focusing cam 104 is sleeved on the focusing main lens barrel, a pair of focusing limit switches 109, a focusing motor 108 and a focusing potentiometer 107 which are engaged with the focusing cam through gears are disposed beside the focusing main lens barrel, and the focusing cam drives the front lens barrel to move back and forth through a focusing guide pin assembly 105, so as to realize an electric focusing function. The focusing potentiometer, the focusing motor, the focusing main lens barrel, the focusing cam and the focusing limit switch form an electric focusing mechanism. The focusing cam is provided with a focusing limit nail 110 matched with the focusing limit switch, and the focusing limit nail and the focusing limit switch 109 are combined to limit and protect the Jiao Tulun from rotating angles along with the rotation of the focusing cam 104.
In this embodiment, the two optical lenses of the focusing lens group are fixed in the front lens barrel by being individually locked by the pressing ring.
In this embodiment, three focusing straight grooves which are uniformly distributed by 90 degrees (are arranged at intervals of 90 degrees) are arranged on the focusing main lens barrel, three linear chute 101 which are uniformly distributed by 90 degrees are arranged on the focusing cam, and the Jiao Daoding component is fixed on the front lens barrel and penetrates through the focusing straight grooves to extend into the linear chute. Is connected and arranged on a focusing main lens barrel 106 through a focusing guide pin assembly 105. A focusing cam spacer 102 is installed at the front part of the focusing main lens barrel and is used for limiting a focusing cam.
When the focusing motor assembly 108 is electrified to rotate, the gear drives the focusing cam 104 to rotate, and the rotation of the front group lens barrel 103 is limited to only do linear motion in the focusing straight groove by limiting the focusing straight groove on the focusing main lens barrel 106, so that the focusing function of a far-near target is realized. When the focusing cam 104 rotates, the synchronous gear of the focusing potentiometer rotates relatively, so that the resistance of the potentiometer changes, the change value of the potentiometer can be obtained through a proper sampling circuit and transmitted to a control center, and the display of the focusing value is realized; on the contrary, the control center gives out a corresponding resistance command, so that real-time control of focusing can be realized.
In this embodiment, the two-gear switching assembly includes a switching main barrel 202, a switching carriage 208 is disposed in the switching main barrel, a switching barrel 206 for mounting the two-gear switching lens group is disposed in the switching carriage, a switching cam 209 is sleeved on the switching main barrel, the switching cam drives the switching frame to move back and forth through a switching guide pin assembly 207, and a pair of switching limit switches 211, a switching motor 203 and a switching potentiometer 201 are disposed at the side of the main barrel and are in meshed transmission with the switching cam through gears. The switching motor 203, the switching potentiometer 201 and the switching limit switch assembly 211 form an electric two-gear switching mechanism. The switching cam is provided with a zoom limit nail 212 matched with the switching micro switch, so that the electric two-gear switching function is realized.
In this embodiment, the two-gear switching lens group is fixed in the switching lens barrel through the switching lens group pressing ring 204, the switching lens barrel is installed in the switching sliding frame in a threaded connection manner, the switching sliding frame is in grinding fit with the main lens barrel, and the switching cam is arranged on the switching main lens barrel through a steel ball and forms a rolling bearing, and is locked by the switching cam pressing ring 210.
In this embodiment, two switching straight grooves are formed on the switching main barrel, two variable-magnification curved grooves 205 are machined on the switching cam according to the requirement of the optical zoom motion scheme, and the switching guide pin assembly is fixed on the switching framework and extends into the variable-magnification curved grooves through the switching straight grooves, so that the switching cam 209 and the switching carriage 208 are connected together by the switching guide pin assembly 207.
When the switching motor rotor performs positive and negative rotation, the switching cam 209 is driven to perform corresponding rotation, the switching sliding frame 208 is driven to move in a mode of the variable-magnification curve groove through the variable-magnification curve groove 213 and the switching guide pin assembly 207, the two switching straight grooves on the switching main lens barrel 202 play a role in limiting the switching guide pin assembly 207, and the rotation of the switching sliding frame 208 is changed into linear motion, so that the function of rapidly switching two gears (large/small view fields) of the lens of the system is realized.
When the field of view of the system changes, the switching potentiometer assembly 201 rotates relatively through the engagement of the switching cam 208 and the gear of the switching potentiometer assembly 201, the resistance value of the potentiometer changes, and the change value of the potentiometer can be obtained through a proper sampling circuit and transmitted to a control center, so that the display of a zoom value is realized; on the contrary, the control center gives out a corresponding resistance command, so that the real-time control of the focal length can be realized. The switching limit switch assembly 211 works cooperatively through limit nails, so that the limit and protection functions of the system in the zooming process are achieved.
In this embodiment, the variable diaphragm assembly includes a diaphragm seat 307, the rear fixed lens group C is mounted in the diaphragm seat, a diaphragm adjusting ring 309 and a diaphragm moving ring 306 with diaphragm sheets are disposed on the diaphragm seat, the diaphragm adjusting ring is meshed with a gear of a diaphragm motor 304 via a gear thereon, the diaphragm seat is provided with a diaphragm potentiometer 301 meshed with the diaphragm adjusting ring via a gear and a diaphragm passing wheel 303 on the diaphragm seat, and the diaphragm passing wheel 303 is mounted on the diaphragm seat 307 via a diaphragm passing wheel shaft 302. A pair of diaphragm limit switches 311 for limiting the size of the diaphragm opening are further arranged on the diaphragm seat, and the maximum and minimum positions of the diaphragm opening are controlled. The diaphragm regulating ring is provided with a diaphragm limiting nail 305 matched with a diaphragm limiting switch, so that an electric dimming function is realized.
In this embodiment, the diaphragm sheet is connected and disposed between the diaphragm moving ring and the diaphragm seat by a rivet, and the diaphragm moving ring is fixed on the diaphragm seat by a diaphragm moving ring pressing ring 308; the diaphragm adjusting ring is locked on the diaphragm seat by a diaphragm adjusting ring pressing ring 310, and the diaphragm adjusting ring drives the diaphragm moving ring to rotate through the cooperation of the diaphragm adjusting ring and a diaphragm poking pin fixed on the diaphragm moving ring.
When the diaphragm motor rotates, the diaphragm adjusting ring 309 and the diaphragm moving ring 306 are driven to rotate, so that the change of the size of the diaphragm opening is controlled, and the change of the size of the aperture is electrically controlled. When the diaphragm adjusting ring 309 rotates, it drives the change of the resistance of the blue-cut potentiometer, and the change of the potentiometer can be obtained by a proper sampling circuit and transmitted to the control center, so as to display the opening size of the diaphragm.
The foregoing is only illustrative of the present invention, and it will be appreciated by those skilled in the art that, based on the teachings herein, no inventive effort is required to devise various arrangements of two-stage switching zoom lens and methods of implementation, and that, although equivalent changes, modifications, substitutions and alterations can be made without departing from the spirit and scope of the present invention, it is intended to cover all such modifications and changes as fall within the true spirit and scope of the invention.
Claims (10)
1. The two-gear switching type zoom lens structure is characterized by comprising a focusing assembly, a two-gear switching assembly, a rear fixing assembly and a camera assembly which are sequentially connected along the incidence direction of light rays; a focusing lens group is arranged in the focusing assembly, and the focusing lens group comprises two groups of optical lenses; the two-gear switching assembly is internally provided with two-gear switching lens groups, wherein the two-gear switching lens groups adopt a group of zoom lens groups and consist of two groups of lenses; the variable diaphragm assembly is arranged in the fixed assembly, a rear fixed lens group is fixed in the variable diaphragm assembly, and the rear fixed lens group comprises four groups of lenses.
2. The two-shift switching type zoom lens structure according to claim 1, wherein the focusing lens group is composed of a bonding group of a biconvex lens A1, a biconvex lens A2 and a biconcave lens A3 which are sequentially arranged along the light from left to right; the two-gear switching lens group consists of a gluing group and a biconcave lens B3, wherein the gluing group is formed by closely connecting a negative meniscus lens B1 and a positive meniscus lens B2 which are sequentially arranged; the rear fixed lens group consists of a bonding group, a biconcave lens C4 and a biconvex lens C5 which are sequentially arranged, wherein the bonding group is formed by closely connecting a biconvex lens C1, a negative meniscus lens C2 and a biconvex lens C3.
3. The two-stage switching zoom lens structure according to claim 2, wherein the air space between the lenticular lens A1 and the lenticular lens A2 is 0.1mm, the air space between the biconcave lens A3 and the negative meniscus lens B1 is 52.7mm, the air space between the positive meniscus lens B2 and the biconcave lens B3 is 2.5mm, the air space between the biconcave lens B3 and the lenticular lens C1 is 4.3mm, the air space between the lenticular lens C1 and the negative meniscus lens C2 is 0.1mm, the air space between the biconcave lens C3 and the biconcave lens C4 is 1.3mm, and the air space between the biconcave lens C4 and the biconvex lens C5 is 9.1mm.
4. The two-gear switching type zoom lens structure according to claim 1, 2 or 3, wherein the focusing assembly comprises a focusing main lens barrel, a front lens barrel used for installing a focusing lens group is arranged in the focusing main lens barrel, a focusing cam is sleeved on the focusing main lens barrel, a focusing limit switch, a focusing motor and a focusing potentiometer are arranged on the side of the focusing main lens barrel and are in gear engagement transmission with the focusing cam, the focusing cam drives the front lens barrel to move back and forth through a focusing guide pin assembly, and a focusing limit pin matched with the focusing limit switch is arranged on the focusing cam.
5. The two-shift switching type zoom lens structure according to claim 4, wherein three focusing straight grooves are uniformly distributed on the focusing main barrel, linear chute are uniformly distributed on the focusing cam, and the Jiao Daoding component is fixed on the front group barrel and extends into the linear chute through the focusing straight grooves.
6. The two-gear switching type zoom lens structure according to claim 1, 2, 3 or 5, wherein the two-gear switching assembly comprises a switching main lens barrel, a switching sliding frame is arranged in the switching main lens barrel, a switching lens barrel for installing the two-gear switching lens group is arranged in the switching sliding frame, a switching cam is sleeved on the switching main lens barrel and drives the switching framework to move back and forth through a switching guide pin assembly, a switching limit switch, a switching motor and a switching potentiometer are arranged beside the main lens barrel and are in gear engagement transmission with the switching cam, and a zooming limit pin matched with the switching micro switch is arranged on the switching cam.
7. The two-shift switching type zoom lens structure according to claim 6, wherein the two-shift switching lens group is fixed in the switching lens barrel through a switching lens group pressing ring, the switching lens barrel is mounted in the switching sliding frame in a threaded connection manner, the switching sliding frame is in grinding fit with the main lens barrel, and the switching cam is arranged on the switching main lens barrel through steel balls and forms a rolling bearing and is locked by the switching cam pressing ring.
8. The two-shift switching type zoom lens structure according to claim 6, wherein two switching straight grooves are formed in the switching main lens barrel, two variable-magnification curved grooves are formed in the switching cam, and the switching guide pin assembly is fixed on the switching framework and penetrates through the switching straight grooves to extend into the variable-magnification curved grooves.
9. The two-gear switching type zoom lens structure according to claim 1, 2, 3, 5, 7 or 8, wherein the variable diaphragm assembly comprises a diaphragm seat, the rear fixed lens group is installed in the diaphragm seat, a diaphragm adjusting ring matched with the diaphragm seat and a diaphragm moving ring provided with a diaphragm sheet are arranged on the diaphragm seat, the diaphragm adjusting ring is meshed with a gear of a diaphragm motor through the gear, a diaphragm potentiometer meshed with the diaphragm adjusting ring through the gear and a diaphragm passing wheel on the diaphragm seat is arranged on the diaphragm seat, a diaphragm limit switch for limiting the size of a diaphragm opening is further arranged on the diaphragm seat, and a diaphragm limit nail matched with the diaphragm limit switch is arranged on the diaphragm adjusting ring.
10. The two-shift switching type zoom lens structure according to claim 9, wherein the diaphragm sheet is disposed between the diaphragm moving ring and the diaphragm seat via rivet connection, and the diaphragm moving ring is fixed to the diaphragm seat via a diaphragm moving ring pressing ring; the diaphragm adjusting ring is locked on the diaphragm seat by a diaphragm adjusting ring pressing ring, and the diaphragm adjusting ring drives the diaphragm moving ring to rotate through the cooperation of the diaphragm adjusting ring and a diaphragm poking nail fixed on the diaphragm moving ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211566472.4A CN116300014B (en) | 2022-12-07 | 2022-12-07 | Two-gear switching type zoom lens structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211566472.4A CN116300014B (en) | 2022-12-07 | 2022-12-07 | Two-gear switching type zoom lens structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116300014A true CN116300014A (en) | 2023-06-23 |
| CN116300014B CN116300014B (en) | 2024-07-09 |
Family
ID=86794817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211566472.4A Active CN116300014B (en) | 2022-12-07 | 2022-12-07 | Two-gear switching type zoom lens structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116300014B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008256782A (en) * | 2007-04-02 | 2008-10-23 | Topcon Corp | Optical device |
| US20090109548A1 (en) * | 2007-10-29 | 2009-04-30 | Canon Kabushiki Kaisha | Zoom lens and image-pickup apparatus |
| CN106199934A (en) * | 2016-08-27 | 2016-12-07 | 福建福光股份有限公司 | The high definition continuous vari-focus pick-up lens that under low temperature environment, visual field is switched fast |
| CN106249383A (en) * | 2016-08-30 | 2016-12-21 | 福建福光股份有限公司 | Two grades of visual field tracking measurement camera lenses of long-focus |
| CN217385980U (en) * | 2022-06-09 | 2022-09-06 | 博圳道(深圳)科技有限公司 | Micro-distance shift lens |
-
2022
- 2022-12-07 CN CN202211566472.4A patent/CN116300014B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008256782A (en) * | 2007-04-02 | 2008-10-23 | Topcon Corp | Optical device |
| US20090109548A1 (en) * | 2007-10-29 | 2009-04-30 | Canon Kabushiki Kaisha | Zoom lens and image-pickup apparatus |
| CN106199934A (en) * | 2016-08-27 | 2016-12-07 | 福建福光股份有限公司 | The high definition continuous vari-focus pick-up lens that under low temperature environment, visual field is switched fast |
| CN106249383A (en) * | 2016-08-30 | 2016-12-21 | 福建福光股份有限公司 | Two grades of visual field tracking measurement camera lenses of long-focus |
| CN217385980U (en) * | 2022-06-09 | 2022-09-06 | 博圳道(深圳)科技有限公司 | Micro-distance shift lens |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116300014B (en) | 2024-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107238916B (en) | High-definition continuous zoom lens with large zoom ratio and long focal length | |
| CN106526805B (en) | F16mm high-definition low-distortion half-group mobile industrial lens | |
| CN106154522B (en) | The big target surface double-view field zoom lens of LONG WAVE INFRARED and its Zooming method | |
| CN106932891A (en) | 25 ~ 75mm long-wave infrared continuous zoom lens and its method of work | |
| CN109696740B (en) | Large-target-surface high-definition zoom-shooting integrated lens and working method thereof | |
| CN201845118U (en) | Optical regulation structure capable of optical zoom and auto focusing | |
| CN110716298A (en) | 1.1-inch large-target-surface 16-mm-focus high-definition low-distortion industrial lens and manufacturing method thereof | |
| CN206039017U (en) | Big target surface dual -view field zoom lens of long wave infrared | |
| CN116300014B (en) | Two-gear switching type zoom lens structure | |
| CN102902045B (en) | Pick-up lens for high-resolution single group movement industry | |
| CN211454085U (en) | 1.1 inch large target surface 16mm focal length high-definition low-distortion industrial lens | |
| CN101598854A (en) | Infrared three-field optical imaging system | |
| CN217238506U (en) | Large-caliber turning type long-focus ultra-high-definition zoom lens | |
| CN104977703A (en) | Ultralow-illumination low light zooming lens and control method thereof | |
| CN106842485A (en) | The electronic whole group focusing type non-brake method camera lens of three-chip type far infrared | |
| CN206848549U (en) | The electronic whole group focusing type non-brake method optical system of three-chip type far infrared and its lens construction | |
| CN204855926U (en) | Ultralow illuminance shimmer zoom | |
| CN201116943Y (en) | Zooming optical system capable of fast zooming | |
| CN206450890U (en) | High magnification Zoom optic lens | |
| CN206710692U (en) | 25 ~ 75mm long-wave infrared continuous zoom lens | |
| CN202794681U (en) | High-resolution motor-driven diaphragm pick-up lens | |
| CN108873276B (en) | High-definition fog-penetrating broadband visible light camera lens and imaging method | |
| CN202904108U (en) | High-resolution single-unit mobile industrial camera lens | |
| CN106526781A (en) | High magnification optical zoom lens | |
| CN206002761U (en) | Zoom short-throw projection camera lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |