CN107272188B - Zoom lens and electronic equipment - Google Patents
Zoom lens and electronic equipment Download PDFInfo
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- CN107272188B CN107272188B CN201710638987.3A CN201710638987A CN107272188B CN 107272188 B CN107272188 B CN 107272188B CN 201710638987 A CN201710638987 A CN 201710638987A CN 107272188 B CN107272188 B CN 107272188B
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- heating wire
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
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- Optics & Photonics (AREA)
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Abstract
The invention discloses a zoom lens and an electronic device, the zoom lens includes: a lens; and the temperature control part is used for heating or cooling the lens and realizing zooming of the lens through deformation caused by temperature change. When the temperature control lens is used, the lens is heated or cooled through the temperature control piece, so that the lens generates thermal expansion and cold contraction deformation due to temperature change, and the change of the focal length of the lens is realized. The process realizes focal length change by controlling the temperature of the lens without involving a motor, and meets the miniaturization design of the lens. Therefore, the zoom lens provided by the invention can realize the zoom effect while meeting the requirement of camera miniaturization, and solves the problem in the field at the present stage.
Description
Technical Field
The present invention relates to a lens, and more particularly, to a zoom lens and an electronic device.
Background
In recent years, the technology has been rapidly developed, and we have entered the intelligent information age. The intelligent life increasingly depends on the camera to realize functions such as object recognition, video call, monitoring and the like.
In terms of the market demand of the camera at present, high-pixel and miniaturization have become the main competitiveness of the camera. At present, in order to further improve the high-definition camera shooting effect of the camera, the automatic focusing is an indispensable function of the camera. In the prior art, the zooming function is mainly realized by the driving of a motor; however, the presence of the motor undoubtedly brings great difficulties to the design of the camera for miniaturization.
Therefore, how to achieve the zoom effect while the camera is miniaturized is a difficult problem to be solved urgently in the field at present.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a zoom lens, which can achieve a zoom effect while satisfying the miniaturization of a camera, and solve the problem in the field at the present stage. It is also an object of the present invention to provide an electronic apparatus including the zoom lens described above, and therefore, an effect of zooming can be achieved while satisfying the miniaturization of a camera.
A zoom lens, comprising:
a lens;
and the temperature control part is used for heating or cooling the lens and realizing zooming of the lens through deformation caused by temperature change.
Preferably, the zoom lens further includes:
a barrel-shaped lens frame, wherein the lenses are arranged on the inner circumferential surface of the lens frame; the temperature sensor is used for sensing a temperature value T of the lens;
the distance sensor is used for sensing a distance value L between the lens and an object to be shot;
the controller is in communication connection with the temperature sensor and the distance sensor, can control the start and stop of the temperature control part, and is provided with a preset value corresponding to the distance and the temperature; the controller receives the temperature value T and the distance value L from time to time, and controls the temperature control piece to start when the temperature value T is smaller than a preset temperature value corresponding to the distance value L; and when the temperature value T is equal to the preset value of the temperature corresponding to the distance value L, the controller controls the temperature control piece to stop.
Preferably, in the zoom lens, the temperature control element is an electric heating wire, and is used for heating the lens.
Preferably, in the zoom lens, the controller may control a current passing through the heating wire.
Preferably, the lens frame of the zoom lens is provided with heat dissipation holes.
Preferably, in the zoom lens, the heating wire is disposed on an inner circumferential surface of the lens frame and between the lens frame and the lens.
Preferably, a heat conduction layer is further arranged between the electric heating wire and the lens of the zoom lens.
Preferably, in the zoom lens, a thread is provided on an outer circumferential surface of the lens frame, and a positive electrode of the electric heating wire penetrates through the inner circumferential surface and the outer circumferential surface of the lens frame and is exposed from a root of the thread; the negative electrode of the electric heating wire penetrates through the inner circumferential surface and the outer circumferential surface of the mirror frame and is exposed from the tooth root of the thread.
Preferably, in the zoom lens, the thread is double threads, and the positive electrode and the negative electrode of the heating wire are respectively exposed from the root of the double threads.
An electronic apparatus mounted with the zoom lens as described in any one of the above.
The invention provides a zoom lens, comprising: a lens; and the temperature control part is used for heating or cooling the lens and realizing zooming of the lens through deformation caused by temperature change. When the temperature control lens is used, the lens is heated or cooled through the temperature control piece, so that the lens generates thermal expansion and cold contraction deformation due to temperature change, and the change of the focal length of the lens is realized. The process realizes focal length change by controlling the temperature of the lens without involving a motor, and meets the miniaturization design of the lens. Therefore, the zoom lens provided by the invention can realize the zoom effect while meeting the requirement of camera miniaturization, and solves the problem in the field at the present stage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a zoom lens according to an embodiment of the present invention;
fig. 2 is a side view of a zoom lens in an embodiment of the present invention.
In fig. 1-2:
lens-1, picture frame-2, louvre-3, screw thread-4, positive pole-5, negative pole-6, heating wire-7, heat-conducting layer-8.
Detailed Description
The core of the specific embodiment is to provide a zoom lens, which can achieve the zoom effect while meeting the requirement of miniaturization of a camera, and solves the problem in the field at the present stage.
Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the contents of the invention described in the claims. The entire contents of the configurations shown in the following embodiments are not limited to those required as solutions of the inventions described in the claims.
The zoom lens provided by the present embodiment mainly operates according to the following principle: the focal length of the lens 1 is changed by changing the temperature of the lens 1, so that the function of automatic zooming is realized, and meanwhile, a motor is replaced, so that the camera meets the miniaturization idea. Mainly including lens 1 and temperature control spare, this temperature control spare is used for heating or cooling to lens 1 to through the deformation that temperature variation arouses lens 1 expend with heat and contract with cold, thereby make lens 1 realize zooming.
In the zoom lens provided by the present embodiment, the temperature control element may be an electric heating wire 7 or a refrigeration element, and when the temperature control element is the electric heating wire 7, the lens is heated. The zoom lens may further include: picture frame 2, temperature sensor, distance sensor, controller. The frame 2 may be cylindrical, and the lenses 1 are disposed on an inner circumferential surface of the frame 2, that is, an outer edge of the lenses 1 is fixed to an inner edge of the frame 2. The heating wire 7 is used for heating the lens 1 to change the focal length of the lens 1; the temperature sensor is used for sensing the temperature of the lens 1 at any time, and the temperature value is represented by T; the distance sensor is used for sensing the distance between the lens 1 and an object to be shot, and the distance value is represented by L; the controller is in communication connection with the temperature sensor and the distance sensor, the temperature sensor and the distance sensor send detected temperature values T and distance values L to the controller at any time, and the controller is provided with temperature preset values T corresponding to the distance values L0(ii) a When the controller receives the temperature value T and the distance value L sent by the temperature sensor and the distance sensor, the temperature value T and the distance value L are compared with the received data according to a program preset by the controller, so that the heating wire 7 is correspondingly controlled. Detailed description is shown in fig. 1-2.
In the zoom lens provided in this embodiment, when the controller receives the temperature value T of the lens 1 less than the preset temperature value T during actual operation0When the lens is in use, the controller controls the heating wire 7 to be started to control the lens1, heating; when the controller receives the temperature value T of the lens 1 as the preset temperature value T0Meanwhile, the controller controls the heating wire 7 to stop working so as to stop heating the lens 1, and meanwhile, automatic zooming of the lens 1 is completed. Because the controller controls the work of the heating wire 7 all the time, the focal length of the lens 1 can be adjusted all the time so as to adapt to high-definition shooting of shot objects at different distances.
In the zoom lens provided by the present embodiment, the controller may further control the current passing through the heating wire 7, so as to control the speed of the focal length change and realize slow zooming.
In the zoom lens according to the present embodiment, in order to accelerate heat dissipation of the lens when necessary, the lens frame 2 may be provided with heat dissipation holes 3, as shown in fig. 1.
In the zoom lens provided by the present embodiment, the heating wire 7 generates heat when being powered on, so as to heat the lens 1, and in order to achieve better heat dissipation effect and not affect permeability of the lens 1, the heating wire 7 may be disposed on the inner circumferential surface of the lens frame 2 and located between the lens frame 2 and the lens 1, as shown in fig. 2.
In order to accelerate heat conduction and prevent the heating wire 7 from directly contacting the lens 1, the zoom lens provided by the embodiment may have a heat conducting layer 8 disposed between the heating wire 7 and the lens 1, so as to select a material with a large heat conducting coefficient, which is beneficial to further accelerate heat transfer, such as iron and copper.
In the zoom lens provided by the specific embodiment, the outer peripheral surface of the lens frame 2 may be provided with the threads 4, that is, the zoom lens may be connected with the electronic device through the threads 4, which facilitates the assembly of the zoom lens; of course, the frame 2 of the zoom lens may also be provided with a slot or other components capable of being connected with an electronic device.
In the zoom lens provided by the present embodiment, the positive electrode 5 and the negative electrode 6 of the heating wire 7 may be exposed from the root of the tooth of the thread 4, that is, penetrate through the outer circumferential surface and the inner circumferential surface of the lens frame 2, and both the positive electrode 5 and the negative electrode 6 are exposed from the root of the tooth of the thread 4; the arrangement not only facilitates the connection of the zoom lens and the electronic equipment, but also can play a certain role in protecting the anode 5 and the cathode 6 of the heating wire 7. In actual design, the thread 4 of the frame 2 can be set to be double threads for exposing the anode 5 and the cathode 6 of the heating wire 7 respectively, so that the anode 5 and the cathode 6 are completely separated, and abnormal operation of the heating wire 7 caused by contact between the anode 5 and the cathode 6 is prevented. The lens can be screwed on the electronic equipment through the arrangement, and meanwhile, the power supply connection of the anode 5 and the cathode 6 of the heating wire 7 is realized, so that the normal work of the zoom lens is realized. As shown in the enlarged view at a in fig. 2.
The present invention further provides an electronic device, which includes the zoom lens described above, and therefore, the electronic device is also within the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A zoom lens, comprising:
a lens (1);
the temperature control piece is used for heating or cooling the lens (1) and realizing zooming of the lens (1) through deformation caused by temperature change;
a barrel-shaped lens frame (2), wherein the lens frame (2) is cylindrical, and the lenses (1) are arranged on the inner circumferential surface of the lens frame (2); a temperature sensor for sensing a temperature value T of the lens (1);
the distance sensor is used for sensing a distance value L between the lens (1) and an object to be shot;
the controller is in communication connection with the temperature sensor and the distance sensor, can control the start and stop of the temperature control part, and is provided with a preset value corresponding to the distance and the temperature; the controller receives the temperature value T and the distance value L from time to time, and controls the temperature control piece to start when the temperature value T is smaller than a preset temperature value corresponding to the distance value L; when the temperature value T is equal to a preset value of the temperature corresponding to the distance value L, the controller controls the temperature control piece to stop;
the temperature control part is an electric heating wire (7) and is used for heating the lens (1);
the outer circumferential surface of the mirror frame (2) is provided with threads (4), and the anode (5) of the electric heating wire (7) penetrates through the inner circumferential surface and the outer circumferential surface of the mirror frame (2) and is exposed from the root of the teeth of the threads (4); the negative electrode (6) of the electric heating wire (7) penetrates through the inner circumferential surface and the outer circumferential surface of the mirror frame (2) and is exposed from the root of the teeth of the thread (4).
2. A zoom lens according to claim 1, wherein the controller is capable of controlling the current through the heating wire (7).
3. A zoom lens according to claim 1, wherein the frame (2) is provided with heat dissipation holes (3).
4. A zoom lens according to claim 1, wherein the heating wire (7) is provided on an inner peripheral surface of the lens frame (2) between the lens frame (2) and the lens (1).
5. A zoom lens according to claim 4, wherein a heat conducting layer (8) is further arranged between the heating wire (7) and the lens (1).
6. A zoom lens according to claim 1, wherein the thread (4) is double thread, and the positive electrode (5) and the negative electrode (6) of the heating wire (7) are exposed from the root of the double thread, respectively.
7. An electronic apparatus characterized in that the electronic apparatus is mounted with a zoom lens according to claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710638987.3A CN107272188B (en) | 2017-07-31 | 2017-07-31 | Zoom lens and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710638987.3A CN107272188B (en) | 2017-07-31 | 2017-07-31 | Zoom lens and electronic equipment |
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| Publication Number | Publication Date |
|---|---|
| CN107272188A CN107272188A (en) | 2017-10-20 |
| CN107272188B true CN107272188B (en) | 2020-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710638987.3A Active CN107272188B (en) | 2017-07-31 | 2017-07-31 | Zoom lens and electronic equipment |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107948513A (en) * | 2017-11-30 | 2018-04-20 | 信利光电股份有限公司 | A kind of zoom camera module and its Zooming method |
| CN108063897B (en) * | 2018-01-31 | 2020-09-29 | 维沃移动通信有限公司 | Camera assembly, focal length adjusting method and mobile terminal |
| CN109029930A (en) * | 2018-07-26 | 2018-12-18 | 昆山丘钛微电子科技有限公司 | A kind of plummer and camera lens temperature drift test device |
| CN114745489A (en) * | 2022-04-20 | 2022-07-12 | Oppo广东移动通信有限公司 | Electronic equipment and camera module thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189219A (en) * | 1995-05-12 | 1998-07-29 | 雷纳德·A·歇尔查 | Variable focus lens by small changes of equatorial lens diameter |
| CN1499220A (en) * | 2002-11-06 | 2004-05-26 | 力捷电脑股份有限公司 | Lens system with tunable curvatures and method for adjusting curvatures |
| CN1940621A (en) * | 2005-09-30 | 2007-04-04 | 鸿富锦精密工业（深圳）有限公司 | Optical mould set |
| WO2009052819A2 (en) * | 2007-10-24 | 2009-04-30 | Jenoptik Laser, Optik, Systeme Gmbh | Adaptable optical system |
-
2017
- 2017-07-31 CN CN201710638987.3A patent/CN107272188B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189219A (en) * | 1995-05-12 | 1998-07-29 | 雷纳德·A·歇尔查 | Variable focus lens by small changes of equatorial lens diameter |
| CN1499220A (en) * | 2002-11-06 | 2004-05-26 | 力捷电脑股份有限公司 | Lens system with tunable curvatures and method for adjusting curvatures |
| CN1940621A (en) * | 2005-09-30 | 2007-04-04 | 鸿富锦精密工业（深圳）有限公司 | Optical mould set |
| WO2009052819A2 (en) * | 2007-10-24 | 2009-04-30 | Jenoptik Laser, Optik, Systeme Gmbh | Adaptable optical system |
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| CN107272188A (en) | 2017-10-20 |
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