CN201837772U - High-resolution day and night dual-use multipoint varifocal lens - Google Patents
High-resolution day and night dual-use multipoint varifocal lens Download PDFInfo
- Publication number
- CN201837772U CN201837772U CN2009202692001U CN200920269200U CN201837772U CN 201837772 U CN201837772 U CN 201837772U CN 2009202692001 U CN2009202692001 U CN 2009202692001U CN 200920269200 U CN200920269200 U CN 200920269200U CN 201837772 U CN201837772 U CN 201837772U
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- 230000001105 regulatory effect Effects 0.000 claims description 23
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 238000003384 imaging method Methods 0.000 abstract description 6
- 238000001228 spectrum Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 4
- 230000003595 spectral effect Effects 0.000 description 4
- 238000005235 decoking Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
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Abstract
The utility model relates to a high-resolution day and night dual-use multipoint varifocal lens applicable to a video shooting system, which comprises a main tube, a front lens group A with negative focal power, and a rear lens group B with positive power, and is characterized in that the inner front side and inner rear side of the main tube are respectively provided with a front lens group seat for installing the front lens group A and a rear lens group seat for installing the rear lens group B; an iris diaphragm C is arranged between the front lens group A and the rear lens group B; and along the incident direction of the light, the front lens group A is sequentially provided with a negative selenodont lens A1, a double-concave lens A2 and a positive selenodont lens A3, the rear lens group B is sequentially provided with a double-convex lens B1, a negative selenodont lens B2, and a positive selenodont lens B3 and a negative selenodont lens B4 that are glued together, as well as a double-convex lens B5 and a double-convex lens B6. The lens is wide in applicable spectrum range and beneficial to realization of clear imaging through infrared light compensation under the low luminance at night, realizes confocal wide spectrum, and the imaging resolution can reach up to 1,300,000 pixels.
Description
Technical field
The utility model relates to a kind of high resolution day and night multipoint zoom lens that is applicable to video camera system.
Background technology
The multipoint zoom lens of structural shape just was applied in the video camera system before more than 10 years as shown in Figure 1.But the optical property index of the camera lens of this kind structural shape is low, can only be adaptive with the CCD or the cmos camera of 20～30 pixels, and the spectral range that adapts to is narrow, can only use under the illumination condition in the daytime of 480nm～650nm.
Summary of the invention
The purpose of this utility model is to provide a kind of high resolution day and night multipoint zoom lens, the spectral range that this camera lens adapts to is wide, help being implemented in and carry out blur-free imaging by infrared light filling under the utmost point low-light (level) environmental baseline night, and realize that wide spectrum is confocal, the imaging resolution height.
For achieving the above object, the technical solution of the utility model is: a kind of high resolution day and night multipoint zoom lens, comprise main tube, focal power is positive back mirror group B for negative preceding mirror group A and focal power, be provided with iris C between mirror group A and the back mirror group B before described, along the light incident direction, mirror group A is provided with negative selenodont eyeglass A1 successively before described, concave-concave eyeglass A2 and the first month of the lunar year type eyeglass A3, described back mirror group B is provided with biconvex eyeglass B1 successively, negative selenodont eyeglass B2, positive selenodont eyeglass B3 glued together and negative selenodont eyeglass B4, biconvex eyeglass B5 and biconvex eyeglass B6; The preceding arrangement of mirrors seat and the back arrangement of mirrors seat that is used to install back mirror group B of mirror group A before the inner both sides, front and back of described main tube are respectively equipped with and are used to install, be respectively equipped with forward and backward guide pin on the described forward and backward arrangement of mirrors seat periphery wall, group regulating ring and back group regulating ring before the outside both sides, front and back of described main tube are respectively equipped with, offer forward and backward axial draw-in groove respectively on the described forward and backward group of regulating ring internal perisporium, both sides offer forward and backward helicla flute respectively along perimembranous before and after the described main tube, and described forward and backward guide pin passes described forward and backward helicla flute respectively and stretches in the described forward and backward axial draw-in groove.
The beneficial effects of the utility model are:
1, by change and the roll adjustment of the interval D 1 between group A before changing and the iris C with the realization lens focus, the corresponding interval D 2 that changes back group B and iris C resembles the stable of face with realization zoom and roll adjustment process.
2, focal distance f A ' that organizes before and after the reasonable distribution when optical design and fB ' make the short volume of light channel structure little.
3, select the optical glass material of high refraction, low chromatic dispersion for use,, make the resolution height of camera lens with optimizing, can adapt to the requirement of 1,300,000 pixel high definition videos shooting by computer optics Aided Design and the various aberrations of having proofreaied and correct optical lens.
4, when optical design, the wide spectral range of 485～850nm is carried out aberration correction and balance makes zoom lens at wide spectral range good picture element be arranged all, realized that wide spectrum is confocal.Camera lens can not only photoenvironment in the daytime under blur-free imaging, under night utmost point low-light (level) environment, by infrared light filling, also can blur-free imaging.
5, when structural design, both guaranteed camera lens concentricity, precision and axial location accurately, the smoothly clamping stagnation not of accomplishing again that zoom moves, comfortable feel.The mirror group adopts working of plastics wherein, adopts mould-forming process, makes the compact conformation of camera lens, and volume is little, and is in light weight.
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Description of drawings
Fig. 1 is a multipoint zoom lens index path in the prior art.
Fig. 2 is the index path of the utility model embodiment in running order.
Fig. 3 is the index path of the utility model embodiment in running order two.
Fig. 4 is the structural representation of the utility model embodiment.
Embodiment
High resolution day and night multipoint zoom lens of the present utility model, shown in Fig. 2,3, comprise that main tube, focal power are positive back mirror group B for negative preceding mirror group A and focal power, be provided with iris C between mirror group A and the back mirror group B before described, to realize the change and the roll adjustment of lens focus, the corresponding interval D 2 of back mirror group B and iris C that changes is to realize the stable of the face that resembles in zoom and the roll adjustment process by the interval D 1 between mirror group A before changing and the iris C.Along the light incident direction, before described mirror group A be provided with successively negative selenodont eyeglass A1, concave-concave eyeglass A2 and the first month of the lunar year type eyeglass A3, described back mirror group B is provided with biconvex eyeglass B1, negative selenodont eyeglass B2, positive selenodont eyeglass B3 and negative selenodont eyeglass B4, biconvex eyeglass B5 and biconvex eyeglass B6 glued together successively.The contour structures of the utility model embodiment as shown in Figure 4, its design feature is: the preceding arrangement of mirrors seat 7 and the back arrangement of mirrors seat 20 that is used to install back mirror group B of mirror group A before the both sides, front and back of described main tube 8 inside are respectively equipped with and are used to install, for realizing manual focusing, even preceding mirror group A and back mirror group B carry out the axis slippage in main tube 8, guide pin 11 and back guide pin 16 before being respectively equipped with on arrangement of mirrors seat 7 and back arrangement of mirrors seat 20 periphery walls before described, group regulating ring 12 and back group regulating ring 15 before the both sides, front and back of described main tube 8 outsides are respectively equipped with, before offering respectively on group regulating ring 12 and back group regulating ring 15 internal perisporiums before described, the back is draw-in groove axially, helicla flute 13 and rear screw groove 14 before described main tube both sides, 8 front and back offer respectively along perimembranous, described before guide pin 11 and back guide pin 16 pass respectively described before helicla flute 13 and rear screw groove 14 stretch into described before, in the axial draw-in groove in back.
Before above-mentioned among the mirror group A airspace between negative selenodont eyeglass A1 and the concave-concave eyeglass A2 be 5.2mm, the airspace between concave-concave eyeglass A2 and the first month of the lunar year type eyeglass A3 is 0.15mm.The span of airspace is (2～11.987) mm between above-mentioned preceding mirror group A and the iris C.The span of airspace is (0.8～4.595) mm between above-mentioned iris C and the back mirror group B.Airspace among the above-mentioned back mirror group B between biconvex eyeglass B1 and the negative selenodont eyeglass B2 is 0.46mm, airspace between negative selenodont eyeglass B2 and the selenodont eyeglass B3 is 0.13mm, airspace between negative selenodont eyeglass B4 and the biconvex eyeglass B5 is 0.8mm, and the airspace between biconvex eyeglass B5 and the biconvex eyeglass B6 is 0.13mm.
Before described in the arrangement of mirrors seat 7, between described negative selenodont eyeglass A1 and the concave-concave eyeglass A2, described concave-concave eyeglass A2 and be respectively equipped with spacer ring 5 and 4 between the type eyeglass A3 first month of the lunar year, in described back arrangement of mirrors seat 20, between described biconvex eyeglass B1 and the negative selenodont eyeglass B2, between described negative selenodont eyeglass B2 and the selenodont eyeglass B3, also be respectively equipped with spacer ring 18,19 and 21 between described biconvex eyeglass B5 and the biconvex eyeglass B6, with the logical light that guarantees each eyeglass and the air distance between the eyeglass; Described negative selenodont eyeglass A1 front side is provided with preceding trim ring 6, and described biconvex eyeglass B6 rear side is provided with back trim ring 22, to guarantee the assembling stability of forward and backward mirror group.
For avoiding camera lens in rotation process, to produce the decoking phenomenon, be arranged with nylon jacket 10 respectively on above-mentioned preceding guide pin 11 and the back guide pin 16.
Back-up ring 9 before group regulating ring 12 front ends are provided with before above-mentioned, group regulating ring 15 rear ends, described back are provided with back snap ring 17, to prevent forward and backward group of regulating ring axial dipole field take place when rotating.
For preventing decoking, designed locking mechanism, promptly before above-mentioned, be respectively equipped with locking nail 29,30 on group regulating ring 12 and the back group regulating ring 15.
When organizing regulating ring 12 before the rotation, move in preceding helicla flute 13 by the guide pin 11 before draw-in groove drives of the front axle on the preceding group of regulating ring 12, arrangement of mirrors seat 7 is done axial slip by preceding guide pin 11 before making in master's tube 8, with the purpose of group focusing before reaching.When the group regulating ring 15 of rotation back, by
Back axial draw-in groove structure on the group regulating ring 15 of back drives back guide pin 16 and moves in rear screw groove 14, makes back arrangement of mirrors seat 20 do axial slip by back guide pin 16 in main tube 8, to reach the purpose of focusing.
The utility model structure is light and handy, satisfies the little principle of overall volume, and in order to cooperate compactness, forward and backward microscope base carries out mould-forming process, guarantee the accuracy of its precision, the nylon jacket guide pin adds screw-drive mechanism and has guaranteed that the client in the process of using camera lens, the decoking phenomenon can not occur.
More than be preferred embodiment of the present utility model, all changes of doing according to technical solutions of the utility model when the function that is produced does not exceed the scope of technical solutions of the utility model, all belong to protection domain of the present utility model.
Claims (9)
1. high resolution day and night multipoint zoom lens, it is characterized in that: comprise that main tube, focal power are positive back mirror group B for negative preceding mirror group A and focal power, be provided with iris C between mirror group A and the back mirror group B before described, along the light incident direction, before described mirror group A be provided with successively negative selenodont eyeglass A1, concave-concave eyeglass A2 and the first month of the lunar year type eyeglass A3, described back mirror group B is provided with biconvex eyeglass B1, negative selenodont eyeglass B2, positive selenodont eyeglass B3 and negative selenodont eyeglass B4, biconvex eyeglass B5 and biconvex eyeglass B6 glued together successively; The preceding arrangement of mirrors seat and the back arrangement of mirrors seat that is used to install back mirror group B of mirror group A before the inner both sides, front and back of described main tube are respectively equipped with and are used to install, be respectively equipped with forward and backward guide pin on the described forward and backward arrangement of mirrors seat periphery wall, group regulating ring and back group regulating ring before the outside both sides, front and back of described main tube are respectively equipped with, offer forward and backward axial draw-in groove respectively on the described forward and backward group of regulating ring internal perisporium, both sides offer forward and backward helicla flute respectively along perimembranous before and after the described main tube, and described forward and backward guide pin passes described forward and backward helicla flute respectively and stretches in the described forward and backward axial draw-in groove.
2. high resolution day and night multipoint zoom lens according to claim 1, it is characterized in that: before described among the mirror group A airspace between negative selenodont eyeglass A1 and the concave-concave eyeglass A2 be 5.2mm, the airspace between concave-concave eyeglass A2 and the first month of the lunar year type eyeglass A3 is 0.15mm.
3. high resolution day and night multipoint zoom lens according to claim 1 is characterized in that: the span of airspace is (2～11.987) mm between described preceding mirror group A and the iris C.
4. high resolution day and night multipoint zoom lens according to claim 1 is characterized in that: the span of airspace is (0.8～4.595) mm between described iris C and the back mirror group B.
5. high resolution day and night multipoint zoom lens according to claim 1, it is characterized in that: the airspace among the described back mirror group B between biconvex eyeglass B1 and the negative selenodont eyeglass B2 is 0.46mm, airspace between negative selenodont eyeglass B2 and the selenodont eyeglass B3 is 0.13mm, airspace between negative selenodont eyeglass B4 and the biconvex eyeglass B5 is 0.8mm, and the airspace between biconvex eyeglass B5 and the biconvex eyeglass B6 is 0.13mm.
6. according to claim 1,2,3,4 or 5 described high resolution day and night multipoint zoom lens, it is characterized in that: before described in the arrangement of mirrors seat, between described negative selenodont eyeglass A1 and the concave-concave eyeglass A2, the described concave-concave eyeglass A2 and the first month of the lunar year are respectively equipped with spacer ring between the type eyeglass A3, in the arrangement of mirrors seat of described back, between described biconvex eyeglass B1 and the negative selenodont eyeglass B2, between described negative selenodont eyeglass B2 and the selenodont eyeglass B3, also be respectively equipped with spacer ring between described biconvex eyeglass B5 and the biconvex eyeglass B6, with the logical light that guarantees each eyeglass and the air distance between the eyeglass; Described negative selenodont eyeglass A1 front side is provided with preceding trim ring, and described biconvex eyeglass B6 rear side is provided with the back trim ring.
7. high resolution day and night multipoint zoom lens according to claim 6 is characterized in that: be arranged with nylon jacket respectively on the described forward and backward guide pin.
8. high resolution day and night multipoint zoom lens according to claim 6, it is characterized in that: group regulating ring front end is provided with preceding back-up ring before described, group regulating ring rear end, described back is provided with the back snap ring, to prevent forward and backward group of regulating ring axial dipole field takes place when rotating.
9. high resolution day and night multipoint zoom lens according to claim 6 is characterized in that: be respectively equipped with locking nail on the described forward and backward group of regulating ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202692001U CN201837772U (en) | 2010-12-08 | 2010-12-08 | High-resolution day and night dual-use multipoint varifocal lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202692001U CN201837772U (en) | 2010-12-08 | 2010-12-08 | High-resolution day and night dual-use multipoint varifocal lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201837772U true CN201837772U (en) | 2011-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202692001U Expired - Lifetime CN201837772U (en) | 2010-12-08 | 2010-12-08 | High-resolution day and night dual-use multipoint varifocal lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201837772U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103116213A (en) * | 2013-02-20 | 2013-05-22 | 福建福光数码科技有限公司 | Three-million pixel day and night confocal board lens |
| CN105301734A (en) * | 2015-11-24 | 2016-02-03 | 福建福光股份有限公司 | Pin hole type high-definition adapter lens and using method thereof |
-
2010
- 2010-12-08 CN CN2009202692001U patent/CN201837772U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103116213A (en) * | 2013-02-20 | 2013-05-22 | 福建福光数码科技有限公司 | Three-million pixel day and night confocal board lens |
| CN103116213B (en) * | 2013-02-20 | 2016-03-30 | 福建福光股份有限公司 | Three mega pixels are confocal trigger camera lens day and night |
| CN105301734A (en) * | 2015-11-24 | 2016-02-03 | 福建福光股份有限公司 | Pin hole type high-definition adapter lens and using method thereof |
| CN105301734B (en) * | 2015-11-24 | 2018-01-12 | 福建福光股份有限公司 | Pin-hole type high definition transfer lens and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: FUJIAN FORECAM CO., LTD. Free format text: FORMER NAME: FUJIAN FORECAM DIGITAL TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 158 No. 350000 Fujian province Fuzhou Mawei District Jiangbin East Avenue Patentee after: FUJIAN FORECAM CO., LTD. Address before: 350015, Fuzhou, Fujian Province, Mawei District, No. 39 Patentee before: Fujian Forecam Optics Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110518 |