CN204731482U - Miniature electric zoom lens - Google Patents
Miniature electric zoom lens Download PDFInfo
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- CN204731482U CN204731482U CN201520455389.9U CN201520455389U CN204731482U CN 204731482 U CN204731482 U CN 204731482U CN 201520455389 U CN201520455389 U CN 201520455389U CN 204731482 U CN204731482 U CN 204731482U
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Abstract
The utility model belongs to optical lens technical field, particularly relate to a kind of miniature electric zoom lens, comprise compensating group, zoom group and body tube, also comprise gear case motor module, gear case motor module comprises gear case, the first motor and the second motor, first motor is connected with compensating group by the first gear in gear case, and the second motor is connected with zoom group by the second gear be arranged on the output shaft of the second motor, and zoom group and compensating group are all arranged on body tube.Relative to prior art, the utility model adopts compact, light-weighted gear case to make camera lens have total length (optics overall length is less than 32mm), feature that size is little, and its cumulative volume is only equivalent to the half of current common motorized zoom lens.Owing to significantly reducing volume and the weight of camera lens, therefore its focusing speed and precision are much better than current motorized zoom lens.Namely the utility model compact structure, applicability is good, zoom rate is fast, focusing accuracy is high, and has better applicability.
Description
Technical field
The utility model belongs to optical lens technical field, particularly relates to a kind of miniature electric zoom lens.
Background technology
Zoom lens can convert focal length within the specific limits, thus obtain the camera lens of the field angle of different width, the image of different size and different scenery scope.Because zoom lens possesses the variable characteristic in the visual field, therefore it has good adaptability to installation environment, so zoom lens is widely used.The advantage of zoom lens to perform to ultimate attainment by motorized zoom lens especially.
Security monitoring video camera often needs to adapt to various different installation environment, and therefore the less applicability of its volume is better.The optics overall length of the zoom lens of current main flow is usually at more than 53mm, if add power zoom control gear, its volume will be huger, do not meet the requirement of miniaturization, this greatly limits it and opens up some potential applications.
In view of this, necessaryly provide a kind of miniature electric zoom lens, its compact conformation, total length, size are little, lightweight, and focusing speed and precision are much better than current motorized zoom lens.
Utility model content
The purpose of this utility model is: for the deficiencies in the prior art, and provides a kind of miniature electric zoom lens, its compact conformation, and total length, size are little, lightweight, and focusing speed and precision are much better than current motorized zoom lens.
In order to achieve the above object, the utility model adopts following technical scheme:
Miniature electric zoom lens, comprise compensating group, zoom group and body tube, also comprise gear case motor module, described gear case motor module comprises gear case, the first motor and the second motor, described first motor is connected with described compensating group by the first gear in described gear case, described second motor is connected with described zoom group by the second gear be arranged on the output shaft of described second motor, and described zoom group and described compensating group are all arranged on described body tube.
One as the utility model miniature electric zoom lens is improved, described compensating group comprises focusing group microscope base, focuses on group's mirror group and focus on group's regulating ring, described focusing group mirror group is arranged in described focusing group microscope base, described focusing group microscope base embeds in described body tube, and described focusing group regulating ring is arranged at one end of described body tube.
One as the utility model miniature electric zoom lens is improved, described focusing group microscope base is provided with the first guide pin, described body tube is provided with chute, described first guide pin is arranged in described chute, the outside surface of described focusing group regulating ring is provided with the first driving cog wheel rim, described first driving cog wheel rim and described first gears meshing.
One as the utility model miniature electric zoom lens is improved, and described focusing group mirror group comprises from object space side the 3rd lens of the first lens of tactic convex-concave negative power, the second lens of concave-concave negative power and convex-concave positive light coke.
One as the utility model miniature electric zoom lens is improved, described zoom group comprises zoom group microscope base, zoom group mirror group and zoom group regulating ring, described zoom group mirror group is arranged in described zoom group microscope base, described zoom group microscope base embeds in described body tube, and described zoom group regulating ring is arranged on described body tube.
One as the utility model miniature electric zoom lens is improved, the outside surface of described zoom group regulating ring is provided with the second driving cog wheel rim, described second driving cog wheel rim and described second gears meshing, described zoom group microscope base is provided with the second guide pin, described body tube is provided with embedded hole, and described second guide pin embeds in described embedded hole.
One as the utility model miniature electric zoom lens is improved, and described zoom group mirror group comprises the 8th lens from the 5th lens of the 4th lens of object space side tactic biconvex positive light coke, concavo-convex negative power, the 6th lens of concave-concave negative power, the 7th lens of biconvex positive light coke and concave-concave negative power.
One as the utility model miniature electric zoom lens is improved, and described 4th lens, described 5th lens, described 6th lens and described 8th lens are plastic aspheric lens.
One as the utility model miniature electric zoom lens is improved, described first lens and described second lens directly near assembling, described 4th lens, described 5th lens and described 6th lens directly near; Packing ring is provided with, by spacer ring close-fitting between described 7th lens and described 8th lens between described second lens and described 3rd lens.
One as the utility model miniature electric zoom lens is improved, and is provided with diaphragm between described 3rd lens and described 4th lens.
Relative to prior art, the utility model adopts compact, light-weighted gear case to make camera lens have total length (optics overall length is less than 32mm), feature that size is little, and its cumulative volume is only equivalent to the half of current common motorized zoom lens.Owing to significantly reducing volume and the weight of camera lens, therefore its focusing speed and precision are much better than current motorized zoom lens.Namely the utility model compact structure, applicability is good, zoom rate is fast, focusing accuracy is high, and has better applicability.
In addition, the utility model adopts the asynchronous zoom form of bi-motor, and one of them motor drives compensating group by gear drive, and another motor drives zoom group by gear drive.Meanwhile, compensating group contains 3 sheet glass eyeglasses, and zoom group contains 4 plastic aspherical element eyeglasses and a slice glass mirror.Optical property is improved by adopting the mode of glass lens in a large number, reduce volume and weight simultaneously, make the start speed of motor camera lens group under identical torsion faster more flexible, the design simultaneously optimizing gear case increases reduction gear ratio, and lens focusing accuracy and runtime is promoted greatly.Camera lens body tube adopts one-part form structure and two-part Structure Comparison common at present simultaneously, has the advantage of precision height compact conformation.
Accompanying drawing explanation
Fig. 1 is one of perspective view of the present utility model.
Fig. 2 is perspective view two of the present utility model.
Fig. 3 is decomposition texture schematic diagram of the present utility model.
Fig. 4 is the structural representation of the lens combination of each lens composition in the utility model.
Embodiment
Below with reference to specific embodiment, the utility model and beneficial effect thereof are described in further detail, but embodiment of the present utility model is not limited thereto.
As shown in Figures 1 to 4, the miniature electric zoom lens that the utility model provides, comprise compensating group 1, zoom group 2 and body tube 3, also comprise gear case motor module 4, gear case motor module 4 comprises gear case 41, first motor 42 and the second motor 43, first motor 42 is connected with compensating group 1 by the first gear in gear case 41, second motor 43 is connected with zoom group 2 by the second gear 44 be arranged on the output shaft of the second motor 43, and zoom group 2 and compensating group 1 are all arranged on body tube 3.The utility model adopts bi-motor (first motor 42 and the second motor 43) asynchronous zoom form, and wherein the first motor 42 drives compensating group 1, second motor 43 to drive zoom group 2 by the second gear 44 transmission by the first gear drive.In the present embodiment, the first motor 42 and the second motor 43 are all set to start motor.In the present embodiment, body tube 3 is one-part form structure, one-body molded.
Wherein, compensating group 1 comprises focusing group microscope base 11, focuses on group's mirror group 12 and focus on group's regulating ring 13, and focus on group's mirror group 12 and be arranged in focusing group microscope base 11, focusing group microscope base 11 embeds in body tube 3, focuses on group and regulates 13 rings to be arranged at one end of body tube 3.
Focus on group's microscope base 11 and be provided with the first guide pin 111, body tube 3 is provided with chute 31, first guide pin 111 is arranged in chute 31, the outside surface of focusing group regulating ring 13 is provided with the first driving cog wheel rim 131, first driving cog wheel rim 131 and the first gears meshing, the first gear is driven by the first motor 42, by engaging of the first gear and the first driving cog wheel rim 131 focused on group regulating ring 13, the first guide pin 111 focusing on group's microscope base 11 can be made to slide in chute 31, thus regulate the distance between compensating group 1 and zoom group 2, zoom is carried out by the relative position changing zoom group 2 and compensating group 1.
The 3rd lens 123(that focusing group mirror group 12 comprises the first lens 121 of the tactic convex-concave negative power from object space side, the second lens 122 of concave-concave negative power and convex-concave positive light coke is shown in Fig. 4).First lens 121, second lens 122 and the 3rd lens 123 are glass lens.
Zoom group 2 comprises zoom group microscope base 21, zoom group mirror group 22 and zoom group regulating ring 23, and zoom group mirror group 22 is arranged in zoom group microscope base 21, and zoom group microscope base 21 embeds in body tube 3, and zoom group regulating ring 23 is arranged on body tube 3.
The outside surface of zoom group regulating ring 23 is provided with the second driving cog wheel rim 231, second driving cog wheel rim 231 engages with the second gear 44, zoom group microscope base 21 is provided with the second guide pin 211, body tube 3 is provided with embedded hole 32, second guide pin 211 embeds in embedded hole 32, and zoom group microscope base 21 is fixed in body tube 3.That is, in the present embodiment, zoom group 2 position is motionless, and the position of compensating group 1 can regulate as required.
Zoom group mirror group 22 comprises sees Fig. 4 from the 8th lens 225(of the 5th lens 222 of the 4th lens 221 of object space side tactic biconvex positive light coke, concavo-convex negative power, the 6th lens 223 of concave-concave negative power, the 7th lens 224 of biconvex positive light coke and concave-concave negative power).Wherein, the 4th lens 221, the 5th lens 222, the 6th lens 223 and the 8th lens 225 are plastic aspheric lens, and the 7th lens 224 are glass lens.
First lens 121 and the second lens 122 directly near assembling, the 4th lens 221, the 5th lens 222 and the 6th lens 223 directly near; Packing ring is provided with, by spacer ring close-fitting between the 7th lens 224 and the 8th lens 225 between second lens 122 and the 3rd lens 123.Diaphragm is provided with between 3rd lens 123 and the 4th lens 221.
That is, in the utility model, compensating group 1 is containing 3 sheet glass eyeglasses, and zoom group 2 is containing 4 plastic aspherical element eyeglasses and a slice glass mirror.Optical property is improved by adopting the mode of glass lens in a large number, reduce volume and weight simultaneously, make the start speed of motor camera lens group under identical torsion faster more flexible, the design simultaneously optimizing gear case increases reduction gear ratio, and lens focusing accuracy and runtime is promoted greatly.Body tube 3 adopts one-part form structure and two-part Structure Comparison common at present simultaneously, has the advantage of precision height compact conformation.
In a word, the utility model adopts compact, light-weighted gear case to make camera lens have total length (optics overall length is less than 32mm), feature that size is little, and its cumulative volume is only equivalent to the half of current common motorized zoom lens.Owing to significantly reducing volume and the weight of camera lens, therefore its focusing speed and precision are much better than current motorized zoom lens.Namely the utility model compact structure, applicability is good, zoom rate is fast, focusing accuracy is high, and has better applicability.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, the utility model is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although employ some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (10)
1. miniature electric zoom lens, comprise compensating group, zoom group and body tube, it is characterized in that: also comprise gear case motor module, described gear case motor module comprises gear case, the first motor and the second motor, described first motor is connected with described compensating group by the first gear in described gear case, described second motor is connected with described zoom group by the second gear be arranged on the output shaft of described second motor, and described zoom group and described compensating group are all arranged on described body tube.
2. miniature electric zoom lens according to claim 1, it is characterized in that: described compensating group comprises focusing group microscope base, focuses on group's mirror group and focus on group's regulating ring, described focusing group mirror group is arranged in described focusing group microscope base, described focusing group microscope base embeds in described body tube, and described focusing group regulating ring is arranged at one end of described body tube.
3. miniature electric zoom lens according to claim 2, it is characterized in that: described focusing group microscope base is provided with the first guide pin, described body tube is provided with chute, described first guide pin is arranged in described chute, the outside surface of described focusing group regulating ring is provided with the first driving cog wheel rim, described first driving cog wheel rim and described first gears meshing.
4. miniature electric zoom lens according to claim 2, is characterized in that: described focusing group mirror group comprises from object space side the 3rd lens of the first lens of tactic convex-concave negative power, the second lens of concave-concave negative power and convex-concave positive light coke.
5. miniature electric zoom lens according to claim 4, it is characterized in that: described zoom group comprises zoom group microscope base, zoom group mirror group and zoom group regulating ring, described zoom group mirror group is arranged in described zoom group microscope base, described zoom group microscope base embeds in described body tube, and described zoom group regulating ring is arranged on described body tube.
6. miniature electric zoom lens according to claim 5, it is characterized in that: the outside surface of described zoom group regulating ring is provided with the second driving cog wheel rim, described second driving cog wheel rim and described second gears meshing, described zoom group microscope base is provided with the second guide pin, described body tube is provided with embedded hole, and described second guide pin embeds in described embedded hole.
7. miniature electric zoom lens according to claim 5, is characterized in that: described zoom group mirror group comprises the 8th lens from the 5th lens of the 4th lens of object space side tactic biconvex positive light coke, concavo-convex negative power, the 6th lens of concave-concave negative power, the 7th lens of biconvex positive light coke and concave-concave negative power.
8. miniature electric zoom lens according to claim 7, is characterized in that: described 4th lens, described 5th lens, described 6th lens and described 8th lens are plastic aspheric lens.
9. miniature electric zoom lens according to claim 7, is characterized in that: described first lens and described second lens directly near assembling, described 4th lens, described 5th lens and described 6th lens directly near; Packing ring is provided with, by spacer ring close-fitting between described 7th lens and described 8th lens between described second lens and described 3rd lens.
10. miniature electric zoom lens according to claim 7, is characterized in that: be provided with diaphragm between described 3rd lens and described 4th lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520455389.9U CN204731482U (en) | 2015-06-30 | 2015-06-30 | Miniature electric zoom lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520455389.9U CN204731482U (en) | 2015-06-30 | 2015-06-30 | Miniature electric zoom lens |
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| Publication Number | Publication Date |
|---|---|
| CN204731482U true CN204731482U (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520455389.9U Active CN204731482U (en) | 2015-06-30 | 2015-06-30 | Miniature electric zoom lens |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112083542A (en) * | 2019-06-14 | 2020-12-15 | 杭州海康威视数字技术股份有限公司 | Zoom camera |
-
2015
- 2015-06-30 CN CN201520455389.9U patent/CN204731482U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112083542A (en) * | 2019-06-14 | 2020-12-15 | 杭州海康威视数字技术股份有限公司 | Zoom camera |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Changan town in Guangdong province Dongguan 523000 usha Ring Road No. 306 Long Yu Kai Dong Industrial Zone D Patentee after: DONGGUAN YUTONG OPTICAL TECHNOLOGY CO., LTD. Address before: Changan town in Guangdong province Dongguan 523000 usha Ring Road No. 306 Long Yu Kai Dong Industrial Zone D Patentee before: Dongguan YuTong Optical Technology Co., Ltd. |