CN203287607U - 1080 P corresponding manual zoom lens - Google Patents
1080 P corresponding manual zoom lens Download PDFInfo
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- CN203287607U CN203287607U CN2013203165628U CN201320316562U CN203287607U CN 203287607 U CN203287607 U CN 203287607U CN 2013203165628 U CN2013203165628 U CN 2013203165628U CN 201320316562 U CN201320316562 U CN 201320316562U CN 203287607 U CN203287607 U CN 203287607U
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Abstract
A 1080 P corresponding manual zoom lens relates to the monitoring technical field and includes a first negative lens group (G1), a diaphragm (S), a second positive lens group (G2), a filter (F) and an imaging target surface (1), wherein the first negative lens group (G1), the second positive lens group (G2), the filter (F) and the imaging target surface (1) are successively arranged on an optical axis from an object end to an imaging end; and the diaphragm (S) is mounted between the first negative lens group (G1) and the second positive lens group (G2). The zoom lens has the advantages of scientific and reasonable design, ultra-wide field, large aperture, high performance, about 3-4 times of zoom ratio and monitoring property in visible light and near-infrared light.
Description
Technical field
The utility model relates to the monitoring technique field, especially a kind of zoom lens.Be specifically related to a kind of 1/2.8 " 3.7 times of corresponding manually zoom lens of 1080P.
Background technology
Camera lens is the eyes of video camera,, in order to adapt to different monitoring environments and requirement, needs the camera lens of configuration different size.Such as the emphasis indoor monitors, carry out the picture catching of clear and large field of view angle, obtain the configuration wide-angle lens; In outdoor parking lot, should see the parking lot overall picture, can see again the thin section of automobile, at this time need wide-angle and zoom lens, the monitoring in boundary line, coastal front, need super long-term plan picture to take.
In recent years for the security protection purpose, to increasing in the outdoor mounted market demands of monitor round the clock.For this reason, require to develop under visible light and near infrared light, with super wide-angle, heavy caliber, can realize the zoom lens of 3～4 times of left and right of zoom ratio of high-performance monitoring.
Summary of the invention
The purpose of this utility model is to provide the corresponding manually zoom lens of a kind of 1080P, and its design science is reasonable, has advantages of super wide-angle, heavy caliber, high-performance, 3～4 times of left and right of zoom ratio, can monitor under visible light and near infrared light.
In order to solve the existing problem of background technology, the utility model is by the following technical solutions: it comprises the first negative eyeglass group G1, diaphragm S, the second positive eyeglass group G2, optical filter F and imaging target surface I, optical axis from the object end to the imaging end is disposed with the first negative eyeglass group G1, the second positive eyeglass group G2, optical filter F and imaging target surface I, and is provided with diaphragm S between the first negative eyeglass group G1, the second positive eyeglass group G2.
The described first negative eyeglass group G1 is whole for bearing lens set, consist of towards the planoconvex lens L3 of object end negative meniscus lens one L1, concave-concave eyeglass L2, the convex surface of convex surface towards the object end, convex surface is provided with concave-concave eyeglass L2 towards negative meniscus lens one L1, the convex surface of object end between the planoconvex lens L3 of object end.
The described second positive eyeglass group G2 integral body is positive lens set, set gradually and form towards the negative meniscus lens L9 of object end towards negative eyeglass L7, biconvex eyeglass three L8, the concave surface of object end towards negative meniscus lens two L5, biconvex eyeglass two L6, the convex surface of object end by biconvex eyeglass one L4, convex surface, convex surface glues together towards negative eyeglass L7 and biconvex eyeglass three L8 of object end towards negative meniscus lens two L5 and biconvex eyeglass two L6 gummeds, the convex surface of object end.
The variable spaced of the described first negative eyeglass group G1, the second positive eyeglass group G2.
Configure diaphragm S between the described first negative eyeglass group G1, the second positive eyeglass group G2, determined F value size.When zoom and focus, imaging target surface I position is fixed relatively.
Principle of the present utility model is: during shooting, according to the CCD and the CMOS(that arrange, do not illustrate) etc. photoelectric sensor, convert light signal to electric signal on lens imaging target surface I.The first negative eyeglass group G1 is according to its mobile focus of carrying out on optical axis, the image planes displacement when revisal changes due to the camera distance of zoom and subject.Move on optical axis during the second positive eyeglass group G2 zoom.During to the telescope end zoom, the second positive eyeglass group G2 moves to the object end from the imaging end on optical axis.During focus, imaging target surface I position is fixed relatively.The second positive eyeglass group G2 is by using at least 2 aspherical lens, and the revisal sphere is received poor and astigmatism preferably.
When visible light and the simultaneous situation of near infrared light occurring, insert optical filter F and get final product between the second positive eyeglass group G2 and imaging target surface I.Optical filter F can select to see through the wherein a kind of of visible light or near infrared light, realizes only using visible light, perhaps only with the monitoring under the near infrared light state.Optical filter F not only limits the use of a slice, also can prepare to select to see through the optical filter of visible light and select to see through 2 of the optical filters of near infrared light, inserts on optical axis and takes off switching individually.
The utility model design science is reasonable, has advantages of super wide-angle, heavy caliber, high-performance, 3～4 times of left and right of zoom ratio, can monitor under visible light and near infrared light.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
With reference to Fig. 1, this embodiment is by the following technical solutions: it comprises the first negative eyeglass group G1, diaphragm S, the second positive eyeglass group G2, optical filter F and imaging target surface I, optical axis from the object end to the imaging end is disposed with the first negative eyeglass group G1, the second positive eyeglass group G2, optical filter F and imaging target surface I, and is provided with diaphragm S between the first negative eyeglass group G1, the second positive eyeglass group G2.
The described first negative eyeglass group G1 is whole for bearing lens set, consist of towards the planoconvex lens L3 of object end negative meniscus lens one L1, concave-concave eyeglass L2, the convex surface of convex surface towards the object end, convex surface is provided with concave-concave eyeglass L2 towards negative meniscus lens one L1, the convex surface of object end between the planoconvex lens L3 of object end.The first negative eyeglass group G1 is the mobile focus of carrying out on optical axis.If shortest focal length is fW, when longest focal length is fT, shortest focal length the first negative eyeglass group G1 and the second positive eyeglass group G2 be spaced apart DW, longest focal length the time the first negative eyeglass group G1 and the second positive eyeglass group G2 be spaced apart DT the time, meet following formula:
5.3＜（ＤＷ－ＤＴ）/（ｆＴ／ｆＷ）＜６．２ （１）
Formula 1 has been stipulated the ratio of the 1st eyeglass group G1 and the 2nd eyeglass group G2 interval variation amount after zoom ratio and zoom.If meet this condition, it is poor that revisal is preferably received., if exceed higher limit, be conducive to the revisal receipts poor, but will cause camera lens not only large-scale but also expensive.If lower than lower limit, the strength grow of each group, can increase the difficulty of receiving poor revisal.
The described second positive eyeglass group G2 integral body is positive lens set, set gradually and form towards the negative meniscus lens L9 of object end towards negative eyeglass L7, biconvex eyeglass three L8, the concave surface of object end towards negative meniscus lens two L5, biconvex eyeglass two L6, the convex surface of object end by biconvex eyeglass one L4, convex surface, convex surface is towards negative meniscus lens two L5 and biconvex eyeglass two L6 gummeds, negative meniscus lens L7 and the biconvex eyeglass three L8 gummeds of object end.Upper note the 2nd eyeglass group has convex lens sheet L6, establish note convex lens sheet L6 when the Abbe number of d line is vdL6, meets following formula:
vdL６＞80.0 （２）
The variable spaced of the described first negative eyeglass group G1, the second positive eyeglass group G2.
Configure diaphragm S between the described first negative eyeglass group G1, the second positive eyeglass group G2, determined F value size.When zoom and focus, imaging target surface I position is fixed relatively.
The principle of this embodiment is: during shooting, according to the CCD and the CMOS(that arrange, do not illustrate) etc. photoelectric sensor, convert light signal to electric signal on lens imaging target surface I.The first negative eyeglass group G1 is according to its mobile focus of carrying out on optical axis, the image planes displacement when revisal changes due to the camera distance of zoom and subject.Move on optical axis during the second positive eyeglass group G2 zoom.During to the telescope end zoom, the second positive eyeglass group G2 moves to the object end from the imaging end on optical axis.During focus, imaging target surface I position is fixed relatively.The second positive eyeglass group G2 is by using at least 2 aspherical lens, and the revisal sphere is received poor and astigmatism preferably.
When visible light and the simultaneous situation of near infrared light occurring, insert optical filter F and get final product between the second positive eyeglass group G2 and imaging target surface I.Optical filter F can select to see through the wherein a kind of of visible light or near infrared light, realizes only using visible light, perhaps only with the monitoring under the near infrared light state.Optical filter F not only limits the use of a slice, also can prepare to select to see through the optical filter of visible light and select to see through 2 of the optical filters of near infrared light, inserts on optical axis and takes off switching individually.
This embodiment design science is reasonable, has advantages of super wide-angle, heavy caliber, high-performance, 3～4 times of left and right of zoom ratio, can monitor under visible light and near infrared light.
Claims (3)
1.1080P corresponding manually zoom lens, it is characterized in that it comprises the first negative eyeglass group (G1), diaphragm (S), the second positive eyeglass group (G2), optical filter (F) and imaging target surface (I), optical axis from the object end to the imaging end is disposed with the first negative eyeglass group (G1), the second positive eyeglass group (G2), optical filter (F) and imaging target surface (I), and is provided with diaphragm (S) between the first negative eyeglass group (G1), the second positive eyeglass group (G2).
2. the corresponding manually zoom lens of 1080P according to claim 1, it is characterized in that the described first negative eyeglass group (G1) is whole for bearing lens set, consist of towards the planoconvex lens (L3) of object end negative meniscus lens one (L1), concave-concave eyeglass (L2), the convex surface of convex surface towards the object end, convex surface is provided with concave-concave eyeglass (L2) towards negative meniscus lens one (L1), the convex surface of object end between the planoconvex lens (L3) of object end.
3. the corresponding manually zoom lens of 1080P according to claim 1, it is characterized in that the described second positive eyeglass group (G2) integral body is positive lens set, by biconvex eyeglass one (L4), convex surface is towards the negative meniscus lens two (L5) of object end, biconvex eyeglass two (L6), convex surface is towards the negative eyeglass (L7) of object end, biconvex eyeglass three (L8), concave surface sets gradually formation towards the negative meniscus lens (L9) of object end, convex surface is towards negative meniscus lens two (L5) and biconvex eyeglass two (L6) gummed of object end, convex surface is towards negative eyeglass (L7) and biconvex eyeglass three (L8) gummed of object end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203165628U CN203287607U (en) | 2013-06-04 | 2013-06-04 | 1080 P corresponding manual zoom lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203165628U CN203287607U (en) | 2013-06-04 | 2013-06-04 | 1080 P corresponding manual zoom lens |
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| Publication Number | Publication Date |
|---|---|
| CN203287607U true CN203287607U (en) | 2013-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203165628U Expired - Fee Related CN203287607U (en) | 2013-06-04 | 2013-06-04 | 1080 P corresponding manual zoom lens |
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| Country | Link |
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| CN (1) | CN203287607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293648A (en) * | 2013-06-04 | 2013-09-11 | 上海中熙光学科技有限公司 | 1080P-corresponded manual zoom lens |
-
2013
- 2013-06-04 CN CN2013203165628U patent/CN203287607U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293648A (en) * | 2013-06-04 | 2013-09-11 | 上海中熙光学科技有限公司 | 1080P-corresponded manual zoom lens |
| CN103293648B (en) * | 2013-06-04 | 2016-08-10 | 嘉兴中润光学科技有限公司 | 1080P correspondence manual zoom camera lens |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20140604 |