CN202453572U - Electromagnetic force driven optical lens with variable aperture - Google Patents
Electromagnetic force driven optical lens with variable aperture Download PDFInfo
- Publication number
- CN202453572U CN202453572U CN2012200323803U CN201220032380U CN202453572U CN 202453572 U CN202453572 U CN 202453572U CN 2012200323803 U CN2012200323803 U CN 2012200323803U CN 201220032380 U CN201220032380 U CN 201220032380U CN 202453572 U CN202453572 U CN 202453572U
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- China
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- slip
- contact lenses
- optical lens
- aperture
- lens barrel
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Abstract
The utility model relates to an electromagnetic force driven optical lens with a variable aperture and is mainly applied on digital cameras and monitoring camera devices. The optical lens comprises a lens casing and a plurality of lenses which are installed inside the lens casing. The optical lens is characterized in that a sliding diaphragm is arranged on an optical axis on which the plurality of lenses are located, the sliding diaphragm is provided with a large aperture and a small aperture, and a control mechanism is arranged inside the lens casing and controls the sliding diaphragm to move so as to enable the large aperture or the small aperture to be located on the optical axis, so that the light transmission capacity of the optical lens is controlled. The optical lens is simple in structure, low in manufacturing cost, small in volume and capable of enabling the small aperture to be located on the optical axis in the daytime and the large aperture to be located on the optical axis at night and effectively guaranteeing the light transmission capacity, so that image formation in the daytime is as stable and distinct as image formation at night.
Description
Technical field
The utility model relates to a kind of optical lens by the power-actuated iris ring of electromagnetism, is mainly used on digital camera and the monitoring camera equipment.
Background technology
At present; It is to be solved that the optical lens that is applied in digital camera and monitoring camera equipment exists following technical matters to have: 1) optical lens falls far short with the quality of imaging in evening by day; Often daytime, natural light was sufficient, and it is clear to form images, the light in evening a little less than; Owing to causing the image planes drift, make photographic images unclear with the IR illumination; 2) daytime and evening, the position that the different wave length of illuminating ray causes forming images influence image quality in section meeting sometime because not overlapping; 3) optical lens of high value is adjusted to the quality of picture through zoom and electric aperture, complex structure, and volume is bigger, and manufacturing cost is high.
Summary of the invention
The purpose of the utility model is to provide a kind of optical lens by the power-actuated iris ring of electromagnetism, and it is simple in structure, and volume is little, and it is clear that image quality is comparatively stablized.
The utility model is realized through following technical scheme:
A kind of optical lens by the power-actuated iris ring of electromagnetism; Comprise mirror head outer shell, be installed in some eyeglasses of mirror head outer shell the inside; On the optical axis at some eyeglasses place, slip light hurdle is set, slip light hurdle is provided with large aperture and little aperture, and the mirror head outer shell the inside is provided with control gear; Control gear control slip light hurdle moves large aperture or little aperture is on the optical axis, thus the logical light quantity of control optical lens.
Above-mentioned described slip light hurdle is provided with on large aperture and the little aperture optical filter is installed, and large aperture is installed thin optical filter, and thicker optical filter is installed on the little aperture, guarantee at night with daytime different wave length light lighting condition under, image space is stablized constant.
Above-mentioned said control gear comprises coil that is wrapped on the iron core and the permanent magnet that is installed in slip Guang Lan both sides; Described mirror head outer shell comprises Jing Quan and lens barrel; Jing Quan is installed in the leading portion of lens barrel, and the lens barrel leading section is provided with chute, and slip light hurdle is nested in the chute the inside and can moves around along chute; The corresponding respectively one group of iron core that is wound with coil of the permanent magnet of slip Guang Lan both sides, the iron core that is wound with coil is installed in the lens barrel the inside.
Above-mentioned described some eyeglasses comprise preceding set of contact lenses, middle set of contact lenses and back set of contact lenses, and preceding set of contact lenses, middle set of contact lenses and back set of contact lenses are installed on the lens barrel, and slip light field is between preceding set of contact lenses and middle set of contact lenses.
The spacing collar of the bottom of above-mentioned described Jing Quan is enclosed within outside, lens barrel end, and an end on slip light hurdle withstands on the inwall of spacing collar.
Have mounting hole on above-mentioned both sides at chute, the lens barrel leading section, the iron core that is wound with coil is nested in the mounting hole the inside, and iron core is perpendicular to the permanent magnet on slip light hurdle and be positioned at the middle part of permanent magnet.
The utility model compared with prior art has following advantage:
(1) the utility model is provided with slip light hurdle on the optical axis at some eyeglasses place, and slip light hurdle is provided with large aperture and little aperture, and the mirror head outer shell the inside is provided with control gear; Control gear control slip light hurdle moves large aperture or little aperture is on the optical axis, thereby the logical light quantity of control optical lens is compared with the traditional optical camera lens; The utility model is simple in structure, low cost of manufacture, and volume is little; Little aperture is on the optical axis; Large aperture is on the optical axis, effectively guarantees logical light quantity, make the imaging in daytime and evening all the same stablize clear.
(2) slip light hurdle is provided with on large aperture and the little aperture optical filter is installed, and large aperture is installed thin optical filter, and thicker optical filter is installed on the little aperture, makes the image space coincidence in daytime and evening, the imaging in daytime and evening is all the same stablize clear.
(3) control gear comprises coil that is wrapped on the iron core and the permanent magnet that is installed in slip Guang Lan both sides, and described mirror head outer shell comprises Jing Quan and lens barrel, and Jing Quan is installed in the leading portion of lens barrel; The lens barrel leading section is provided with chute, and slip light hurdle is nested in the chute the inside can move around the corresponding respectively one group of iron core that is wound with coil of the permanent magnet of slip Guang Lan both sides along chute; The iron core that is wound with coil is installed in the lens barrel the inside; Compact conformation, volume is little, and control gear is simple in structure;
(4) spacing collar of the bottom of said Jing Quan is enclosed within outside, lens barrel end; One end on slip light hurdle withstands on the inwall of spacing collar; During control gear control slip light hurdle move left and right,, large aperture or little aperture are on the optical axis when an end on slip light hurdle withstands on the inwall of spacing collar; Precise control, simple in structure;
(5) have mounting hole on the both sides of said chute, the lens barrel leading section; The iron core that is wound with coil is nested in the mounting hole the inside; Iron core is perpendicular to the permanent magnet on slip light hurdle and be positioned at the middle part of permanent magnet; It is less and soft that the expulsive force that the iron core that is wound with coil is produced promotes promptly the slide power of light hurdle motion of permanent magnet, reduces noise; In addition, as long as to electric pulse of coil, wait slip light hurdle to move into place after, can cancel electric pulse, lean on the iron core and the interaction of permanent magnet that slip light hurdle is located, thereby the saving electric energy.
Description of drawings
Fig. 1 is the stereographic map of the utility model;
Fig. 2 is the front view of the utility model;
Fig. 3 is the A-A cut-open view of Fig. 2;
Fig. 4 is the B-B cut-open view of Fig. 2;
Fig. 5 is the exploded view of utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.
Extremely shown in Figure 5 like Fig. 1; A kind of optical lens by the power-actuated iris ring of electromagnetism comprises mirror head outer shell, is installed in some eyeglasses of mirror head outer shell the inside, on the optical axis C at some eyeglasses place, slip light hurdle 3 is set; Slip light hurdle 3 is provided with large aperture 31 and little aperture 32; The mirror head outer shell the inside is provided with control gear, and control gear control slip light hurdle 3 moves large aperture 31 or little aperture 32 are on the optical axis C, thus the logical light quantity of control optical lens.
Said slip light hurdle 3 is provided with on large aperture 31 and the little aperture 32 optical filter is installed; Large aperture 31 is installed thin optical filter 33; 32 install thicker optical filter 34 on the little aperture, guarantee at night with daytime different wave length light lighting condition under, image space is stablized constant.
Said control gear comprises coil 51,52 that is wrapped on the iron core 41,42 and the permanent magnet 61 that is installed in 3 both sides, slip light hurdle; 62; Described mirror head outer shell comprises mirror circle 11 and lens barrel 12, and mirror circle 11 is installed in the leading portion of lens barrel 12, and lens barrel 12 leading sections are provided with chute 13; Slip light hurdle 3 is nested in chute 13 the insides and can moves around along chute 13; The corresponding respectively one group of iron core that is wound with coil of the permanent magnet 61,62 of 3 both sides, slip light hurdle, the iron core that is wound with coil is installed in lens barrel 12 the insides.
Described some eyeglasses comprise preceding set of contact lenses 21, middle set of contact lenses 22 and back set of contact lenses 23, and preceding set of contact lenses 21, middle set of contact lenses 22 and back set of contact lenses 23 are installed on the lens barrel 12, and slip light hurdle 3 is between preceding set of contact lenses 21 and middle set of contact lenses 22.
The spacing collar 14 of the bottom of described mirror circle 11 is enclosed within outside, lens barrel 12 ends, and an end on slip light hurdle 3 withstands on the inwall of spacing collar 14.
On the both sides of chute 13, lens barrel 12 leading sections, have mounting hole 15; The iron core that is wound with coil is nested in the mounting hole the inside; The number of mounting hole is 2; Each mounting hole is put into one group of iron core that is wound with coil respectively, and every group of iron core is respectively perpendicular to the permanent magnet of 3 both sides, slip light hurdle and be positioned at the middle part of permanent magnet.The principle of work of the utility model: as shown in Figure 3, when the current impulse of giving coil 51,52 logical forwards, iron core 41; 42 end forms N or S magnetic pole, and the end magnetic pole of iron core 41,42 acts on the permanent magnet 61,62 of 3 both sides, slip light hurdle; Promote slip light hurdle 3 toward moving right, as shown in Figure 4,, slip light hurdle 3 just stops to move, at this time when withstanding on the spacing collar 14 of bottom of mirror circle 11; Little aperture 32 is on the optical axis C,, can stops to coil 51,52 energisings in order to save electric energy; But, make slip light hurdle 3 stop to move and being in the steady state (SS) under the magneticaction in the interaction of iron core 41,42 with permanent magnet 61,62; When giving coil 51,52 logical reverse current impulses, the end of iron core 41,42 forms N or S magnetic pole; The end magnetic pole of iron core 41,42 acts on the permanent magnet 61,62 of 3 both sides, slip light hurdle, promotes slip light hurdle 3 toward moving left; As shown in Figure 4,, slip light hurdle 3 just stops to move when withstanding on the spacing collar 14 of bottom of mirror circle 11, and at this time, large aperture 33 is on the optical axis C; In order to save electric energy, can stop to coil 51,52 energisings, but at iron core 41; 42 with the interaction of permanent magnet 61,62, make slip light hurdle 3 stop to move and being in the steady state (SS) under the magneticaction.
Claims (6)
1. optical lens by the power-actuated iris ring of electromagnetism; Comprise mirror head outer shell, be installed in some eyeglasses of mirror head outer shell the inside; It is characterized in that: on the optical axis at some eyeglasses place, slip light hurdle is set, slip light hurdle is provided with large aperture and little aperture, and the mirror head outer shell the inside is provided with control gear; Control gear control slip light hurdle moves large aperture or little aperture is on the optical axis, thus the logical light quantity of control optical lens.
2. a kind of optical lens according to claim 1 by the power-actuated iris ring of electromagnetism; It is characterized in that: slip light hurdle is provided with on large aperture and the little aperture optical filter is installed; Large aperture is installed thin optical filter; Thicker optical filter is installed on the little aperture, guarantee at night with daytime different wave length light lighting condition under, image space is stablized constant.
3. a kind of optical lens according to claim 1 and 2 by the power-actuated iris ring of electromagnetism; It is characterized in that: said control gear comprises coil that is wrapped on the iron core and the permanent magnet that is installed in slip Guang Lan both sides; Described mirror head outer shell comprises Jing Quan and lens barrel; Jing Quan is installed in the leading portion of lens barrel, and the lens barrel leading section is provided with chute, and slip light hurdle is nested in the chute the inside and can moves around along chute; The corresponding respectively one group of iron core that is wound with coil of the permanent magnet of slip Guang Lan both sides, the iron core that is wound with coil is installed in the lens barrel the inside.
4. a kind of optical lens according to claim 3 by the power-actuated iris ring of electromagnetism; It is characterized in that: some eyeglasses comprise preceding set of contact lenses, middle set of contact lenses and back set of contact lenses; Preceding set of contact lenses, middle set of contact lenses and back set of contact lenses are installed on the lens barrel, and slip light field is between preceding set of contact lenses and middle set of contact lenses.
5. a kind of optical lens by the power-actuated iris ring of electromagnetism according to claim 4 is characterized in that: the spacing collar of the bottom of Jing Quan is enclosed within outside, lens barrel end, and an end on slip light hurdle withstands on the inwall of spacing collar.
6. a kind of optical lens according to claim 3 by the power-actuated iris ring of electromagnetism; It is characterized in that: on the both sides of chute, lens barrel leading section, have mounting hole; The iron core that is wound with coil is nested in the mounting hole the inside, and iron core is perpendicular to the permanent magnet on slip light hurdle and be positioned at the middle part of permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200323803U CN202453572U (en) | 2012-02-02 | 2012-02-02 | Electromagnetic force driven optical lens with variable aperture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200323803U CN202453572U (en) | 2012-02-02 | 2012-02-02 | Electromagnetic force driven optical lens with variable aperture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202453572U true CN202453572U (en) | 2012-09-26 |
Family
ID=46869427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200323803U Expired - Fee Related CN202453572U (en) | 2012-02-02 | 2012-02-02 | Electromagnetic force driven optical lens with variable aperture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202453572U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110941061A (en) * | 2018-09-25 | 2020-03-31 | 宁波舜宇光电信息有限公司 | Optical lens, camera module and assembling method |
| CN108696677B (en) * | 2017-03-31 | 2021-06-01 | 三星电机株式会社 | Camera module |
| CN114040068A (en) * | 2021-11-05 | 2022-02-11 | 维沃移动通信有限公司 | Camera module and electronic equipment |
-
2012
- 2012-02-02 CN CN2012200323803U patent/CN202453572U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108696677B (en) * | 2017-03-31 | 2021-06-01 | 三星电机株式会社 | Camera module |
| CN110941061A (en) * | 2018-09-25 | 2020-03-31 | 宁波舜宇光电信息有限公司 | Optical lens, camera module and assembling method |
| CN114040068A (en) * | 2021-11-05 | 2022-02-11 | 维沃移动通信有限公司 | Camera module and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20150202 |
|
| EXPY | Termination of patent right or utility model |