CN204405933U - 4.7-47mm aperture IR aspheric surface 1080p zoom lens - Google Patents
4.7-47mm aperture IR aspheric surface 1080p zoom lens Download PDFInfo
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- CN204405933U CN204405933U CN201520036163.5U CN201520036163U CN204405933U CN 204405933 U CN204405933 U CN 204405933U CN 201520036163 U CN201520036163 U CN 201520036163U CN 204405933 U CN204405933 U CN 204405933U
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Abstract
The utility model relate to 4.7-47mm aperture IR aspheric surface 1080p zoom lens, comprise front fixing group 1, zoom group 2, latter fixing group 3, focusing group 4, diaphragm 5, IRCut6, image planes 7, along light direction, set gradually front fixing group 1, zoom group 2, latter fixing group 3, focusing group 4, the zooming range that 4 groups of optical modules can be formed is f=4.7-47mm, zoom multiplying power is 10X, optics overall length is 56.1mm, diaphragm 5 to be arranged between zoom group 2 and latter fixing group 3 and to be close to latter fixing group 3, and focusing group 4 rear arranges IRCut6 and image planes 7 in turn.The utility model is rational in infrastructure, auto-focusing, and imaging reaches 1080P; Adopt IRCut filter, make nighttime imaging more clear; Adopt aspherical lens, improve the refractive index of lens edge part to light, good lens error correction can be maintained, make the edge imaging of camera lens better.
Description
Technical field
The utility model relates to security lens apparatus field, specifically 4.7-47mm aperture IR aspheric surface 1080p zoom lens.
Background technology
Security lens uses for being matched with video camera in security system, is ingredient important in security protection industry.Common security lens nighttime imaging is fuzzy, and night is the time period needing most monitoring, so common monitoring camera needs to improve; Common camera lens all adopts spherical mirror, although saved cost, imaging is inadequate, does not reach desirable effect.
Summary of the invention
Not enough for above-mentioned prior art, the utility model provides the 4.7-47mm aperture IR aspheric surface 1080p zoom lens of a kind of rational in infrastructure, imaging, auto-focusing.
The 4.7-47mm aperture IR aspheric surface 1080p zoom lens that the utility model provides is achieved through the following technical solutions:
4.7-47mm aperture IR aspheric surface 1080p zoom lens, comprise front fixing group 1, zoom group 2, latter fixing group 3, focusing group 4, diaphragm 5, IRCut 6, image planes 7, along light direction, set gradually front fixing group 1, zoom group 2, latter fixing group 3, focusing group 4, the zooming range that 4 groups of optical modules can be formed is f=4.7-47mm, zoom multiplying power is 10X, optics overall length is 56.1mm, diaphragm 5 to be arranged between zoom group 2 and latter fixing group 3 and to be close to latter fixing group 3, and focusing group 4 rear arranges IRCut 6 and image planes 7 in turn.
Before above-mentioned, fixing group 1 comprises 3 lens, and along light direction, described 3 lens are followed successively by the first meniscus 11 and the first biconvex lens 12, first concave-convex lens 13 glued together, and front fixing group of 1 focal length is assigned as f=27.25mm.
Above-mentioned zoom group 2 comprises 3 lens, and along light direction, described 3 lens are followed successively by plano-concave lens 21, and the first biconcave lens 22 and the second concave-convex lens 23 glued together, zoom group 2 focal length is assigned as f=-5.61mm.
Above-mentioned latter fixing group 3 comprises 3 lens, and along light direction, described 3 lens are followed successively by aspheric surface plano-convex lens 31, and the second biconvex lens 32 and the second biconcave lens 33 glued together, rear fixing group of 3 focal lengths are assigned as f=14.64mm.
Above-mentioned focusing group 4 comprises 3 lens, and along light direction, described 3 lens are followed successively by the 3rd biconvex lens 41 and the second meniscus the 42, four biconvex lens 43 glued together, and focusing group 4 focal length is assigned as f=13.53mm.
The beneficial effects of the utility model are:
1, rational in infrastructure, auto-focusing, imaging, reaches 1080P;
2, adopt IRCut filter, make nighttime imaging more clear;
3, adopt aspherical lens, improve the refractive index of lens edge part to light, good lens error correction can be maintained, make the edge imaging of camera lens better.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Mark in figure: first fixing group 1, the first meniscus 11, first biconvex lens 12, first concave-convex lens 13, zoom group 2, plano-concave lens 21, first biconcave lens 22, second concave-convex lens 23, latter fixing group 3, aspheric surface plano-convex lens 31, second biconvex lens 32, second biconcave lens 33, focusing group 4, the 3rd biconvex lens 41, second meniscus 42, the 4th biconvex lens 43, diaphragm 5, IRCut 6, image planes 7.
Embodiment
4.7-47mm aperture IR aspheric surface 1080p zoom lens as shown in Figure 1, comprise front fixing group 1, zoom group 2, latter fixing group 3, focusing group 4, diaphragm 5, IRCut 6, image planes 7, along light direction, set gradually front fixing group 1, zoom group 2, latter fixing group 3, focusing group 4, the zooming range that 4 groups of optical modules can be formed is f=4.7-47mm, zoom multiplying power is 10X, optics overall length is 56.1mm, diaphragm 5 to be arranged between zoom group 2 and latter fixing group 3 and to be close to latter fixing group 3, and focusing group 4 rear arranges IRCut 6 and image planes 7 in turn.
Before described, fixing group 1 comprises 3 lens, and along light direction, described 3 lens are followed successively by the first meniscus 11 and the first biconvex lens 12, first concave-convex lens 13 glued together, and front fixing group of 1 focal length is assigned as f=27.25mm.
Described zoom group 2 comprises 3 lens, and along light direction, described 3 lens are followed successively by plano-concave lens 21, and the first biconcave lens 22 and the second concave-convex lens 23 glued together, zoom group 2 focal length is assigned as f=-5.61mm.
Described latter fixing group 3 comprises 3 lens, and along light direction, described 3 lens are followed successively by aspheric surface plano-convex lens 31, and the second biconvex lens 32 and the second biconcave lens 33 glued together, rear fixing group of 3 focal lengths are assigned as f=14.64mm.
Described focusing group 4 comprises 3 lens, and along light direction, described 3 lens are followed successively by the 3rd biconvex lens 41 and the second meniscus the 42, four biconvex lens 43 glued together, and focusing group 4 focal length is assigned as f=13.53mm.
The utility model realizes lens focus change by movable zoom group 2, moves forward as focal length diminishes, after move as focal length becomes large; Compensated because the image planes that zoom group 2 moves generation move by movable focusing group 4, image planes are immobilized.Diaphragm 5 is to eliminate harmful light in light path, regulating photosensitive member surface brightness and arrange; IRCut 6 effect makes photo-sensitive cell better reduce image color and increase picture element, and time by day, IRCut 6 is switched to IR pattern and filters infrared light and make to only have visible light part imaging on photo-sensitive cell; When night, IRCut 6 is switched to white glass pattern, allows the 850nm near infrared light of floor light participate in imaging.
Claims (5)
1.4.7-47mm aperture IR aspheric surface 1080p zoom lens, fixing group (1) before comprising, zoom group (2), rear fixing group (3), focusing group (4), diaphragm (5), IRCut(6), image planes (7), it is characterized in that: along light direction, fixing group (1) before setting gradually, zoom group (2), rear fixing group (3), focusing group (4), the zooming range that 4 groups of optical modules can be formed is f=4.7-47mm, zoom multiplying power is 10X, optics overall length is 56.1mm, diaphragm (5) to be arranged between zoom group (2) and rear fixing group (3) and to be close to rear fixing group (3), focusing group (4) rear arranges IRCut(6 in turn) and image planes (7).
2. 4.7-47mm aperture IR aspheric surface 1080p zoom lens according to claim 1, it is characterized in that: front fixing group (1) comprises 3 lens, along light direction, described 3 lens are followed successively by the first meniscus (11) glued together and the first biconvex lens (12), first concave-convex lens (13), front fixing group of (1) focal length is assigned as f=27.25mm.
3. 4.7-47mm aperture IR aspheric surface 1080p zoom lens according to claim 1, it is characterized in that: zoom group (2) comprises 3 lens, along light direction, described 3 lens are followed successively by plano-concave lens (21), first biconcave lens (22) glued together and the second concave-convex lens (23), zoom group (2) focal length is assigned as f=-5.61mm.
4. 4.7-47mm aperture IR aspheric surface 1080p zoom lens according to claim 1, it is characterized in that: fix group (3) afterwards and comprise 3 lens, along light direction, described 3 lens are followed successively by aspheric surface plano-convex lens (31), second biconvex lens (32) glued together and the second biconcave lens (33), rear fixing group of (3) focal length is assigned as f=14.64mm.
5. 4.7-47mm aperture IR aspheric surface 1080p zoom lens according to claim 1, it is characterized in that: focusing group (4) comprises 3 lens, along light direction, described 3 lens are followed successively by the 3rd biconvex lens (41) glued together and the second meniscus (42), 4th biconvex lens (43), focusing group (4) focal length is assigned as f=13.53mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520036163.5U CN204405933U (en) | 2015-01-20 | 2015-01-20 | 4.7-47mm aperture IR aspheric surface 1080p zoom lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520036163.5U CN204405933U (en) | 2015-01-20 | 2015-01-20 | 4.7-47mm aperture IR aspheric surface 1080p zoom lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204405933U true CN204405933U (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520036163.5U Expired - Fee Related CN204405933U (en) | 2015-01-20 | 2015-01-20 | 4.7-47mm aperture IR aspheric surface 1080p zoom lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204405933U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111221115A (en) * | 2020-01-20 | 2020-06-02 | 中国科学院西安光学精密机械研究所 | Large-zoom-ratio short-wave infrared continuous zoom lens |
-
2015
- 2015-01-20 CN CN201520036163.5U patent/CN204405933U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111221115A (en) * | 2020-01-20 | 2020-06-02 | 中国科学院西安光学精密机械研究所 | Large-zoom-ratio short-wave infrared continuous zoom lens |
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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: 20150617 Termination date: 20180120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |