CN101510001B - Long-focus lens - Google Patents
Long-focus lens Download PDFInfo
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- CN101510001B CN101510001B CN 200910064530 CN200910064530A CN101510001B CN 101510001 B CN101510001 B CN 101510001B CN 200910064530 CN200910064530 CN 200910064530 CN 200910064530 A CN200910064530 A CN 200910064530A CN 101510001 B CN101510001 B CN 101510001B
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- thing side
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Abstract
The invention discloses a telephoto lens, comprising a lens frame and an end cover; the lens frame is internally provided with a meniscus convex lens, a double concave lens, a first meniscus concave lens, a double convex lens and a second meniscus concave lens in sequence from an object-near side to an object-far side; the contact surfaces of the first meniscus concave lens and the double convex lens are glued; a spacer is arranged between the double concave lens and the first meniscus concave lens; and a spacer is arranged between the double convex lens and the second meniscus concave lens. As the telephoto lens adopts the structure, the ray longitude has the characteristics of small viewing holes, no vignetting in the viewing field, large collecting amount of daylight, no defocusing and good night viewing effect; and the focus reaches 12 mm, and the resolution is more than million pixels. The lens designed according to the proposal adopts an optical path with an included angle of zero degree between the principal ray and the optical axis, therefore, the optical distortion is small and the utilization rate of energy is high; and the lens is designed to be one third circle, has high resolution and excellent night viewing effect.
Description
Technical field
The invention belongs to the image acquisition equipment technical field, be specifically related to a kind of telephoto lens.
Background technology
Obtaining at a distance aspect the vision facilities, the combination of camera lens interior lens determines the Image Acquisition effect, but at present, some video images obtain equipment and how to reach high pixel by adjusting eyeglass, but its lighting quantity is often not enough, is not enough to satisfy the Image Acquisition demand of day and night; And lighting quantity reaches requirement, and when satisfying the day and night demand, pixel is often low excessively again, does not reach degree clearly.
Summary of the invention
The invention provides a kind of telephoto lens, the resolution height of this camera lens, and can adapt to the demand of obtaining image night, night vision is effective.
A kind of telephoto lens, comprise picture frame and end cap, be disposed with bent moon convex lens, biconcave lens, the first bent moon concavees lens, biconvex lens and the second bent moon concavees lens from nearly thing side to thing side direction far away in the described picture frame, the surface of contact gummed of the described first bent moon concavees lens and described biconvex lens, between described biconcave lens and the first bent moon concavees lens spacer ring is set, between biconvex lens and the second bent moon concavees lens spacer ring is set.
The thick numerical value in the center of described bent moon convex lens is 1.87mm, external diameter 8mm, and nearly thing side spherical radius 7.645mm, thing side spherical radius 29.491mm far away, camber 0.27mm, material is LAF52;
The thick numerical value in the center of described biconcave lens is 1.65mm, external diameter 8mm, and nearly thing side spherical radius 19.886mm, camber 0.36mm, thing side spherical radius 7.003mm far away, camber 0.56mm, material is F5;
The thick numerical value in the center of the described first bent moon concavees lens is 0.87mm, external diameter 7mm, and nearly thing side spherical radius 25.26mm, thing side spherical radius 7.5225mm far away, camber 0.8mm, material is ZF5;
The thick numerical value in the center of described biconvex lens is 2.37mm, external diameter 7mm, and nearly thing side spherical radius 7.4225mm, thing side spherical radius 10.74mm far away, material is LAK12;
The thick numerical value in the center of the described second bent moon concavees lens is 3.52mm, external diameter 7mm, and nearly thing side spherical radius 7.4225mm, thing side spherical radius 7.05mm far away, camber 0.55mm, material is ZK7.
Because a kind of telephoto lens of the present invention adopts above-mentioned structure, light is little through having the hole of seeing, the visual field does not have dark angle, and lighting quantity is big, out of focus not, and the night vision good effectiveness, focal length reaches 12mm, and resolution can be crossed mega pixel.According to the camera lens that such scheme is designed to, adopting the angle of chief ray and optical axis is the light path of zero degree, and optical distortion is little, the capacity usage ratio height.Lens design to 1/3 circle, the resolution height; Night vision is effective.Compared with prior art, not only these object lens use description of materials few, be easy to buying processing, and improved image quality, well balance the technical contradiction requirement of low-cost and high imaging quality, has the optical property height, the image illumination uniformity height, resolution height, advantage of simple structure, and adopt and use common environmental protection optical glass always, good manufacturability, cost is low, is fit to produce in enormous quantities, this camera lens not only can effectively solve technical contradiction low-cost and high imaging quality, and has good in optical property, image illumination uniformity height, resolution height, the imaging definition height, advantage such as physical dimension is little.
Description of drawings
The present invention is described further below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of a kind of telephoto lens of the present invention.
Embodiment
A kind of telephoto lens, comprise picture frame 2 and end cap 1, be disposed with bent moon convex lens 3, biconcave lens 4, the first bent moon concavees lens 5, biconvex lens 6 and the second bent moon concavees lens 7 from nearly thing side to thing side direction far away in the described picture frame 2, the described first bent moon concavees lens 5 glue together with the surface of contact of described biconvex lens 6, between described biconcave lens 4 and the first bent moon concavees lens 5 spacer ring 8 is set, between biconvex lens 6 and the second bent moon concavees lens 7 spacer ring 9 is set.
The thick numerical value in the center of described bent moon convex lens 3 is 1.87mm, external diameter 8mm, and nearly thing side spherical radius 7.645mm, thing side spherical radius 29.491mm far away, camber 0.27mm, material is LAF52;
The thick numerical value in the center of described biconcave lens 4 is 1.65mm, external diameter 8mm, and nearly thing side spherical radius 19.886mm, camber 0.36mm, thing side spherical radius 7.003mm far away, camber 0.56mm, material is F5;
The thick numerical value in the center of the described first bent moon concavees lens 5 is 0.87mm, external diameter 7mm, and nearly thing side spherical radius 25.26mm, thing side spherical radius 7.5225mm far away, camber 0.8mm, material is ZF5;
The thick numerical value in the center of described biconvex lens 6 is 2.37mm, external diameter 7mm, and nearly thing side spherical radius 7.4225mm, thing side spherical radius 10.74mm far away, material is LAK12;
The thick numerical value in the center of the described second bent moon concavees lens 7 is 3.52mm, external diameter 7mm, and nearly thing side spherical radius 7.4225mm, thing side spherical radius 7.05mm far away, camber 0.55mm, material is ZK7.
Because telephoto lens of the present invention adopts above-mentioned structure, light is little through having the hole of seeing, the visual field does not have dark angle, and lighting quantity is big, out of focus not, and the night vision good effectiveness, focal length reaches 12mm.According to the camera lens that such scheme is designed to, adopting the angle of chief ray and optical axis is the light path of zero degree, and optical distortion is little, the capacity usage ratio height.Lens design to 1/3 circle, the resolution height; Night vision is effective.Compared with prior art, not only these object lens use description of materials few, be easy to buying processing, and improved image quality, well balance the technical contradiction requirement of low-cost and high imaging quality, has the optical property height, the image illumination uniformity height, resolution height, advantage of simple structure, and adopt and use common environmental protection optical glass always, good manufacturability, cost is low, is fit to produce in enormous quantities, this camera lens not only can effectively solve technical contradiction low-cost and high imaging quality, and has good in optical property, image illumination uniformity height, resolution height, the imaging definition height, advantage such as physical dimension is little.
Claims (1)
1. telephoto lens, comprise picture frame and end cap, it is characterized in that: be disposed with the bent moon convex lens from nearly thing side to thing side direction far away in the described picture frame, biconcave lens, the first bent moon concavees lens, biconvex lens and the second bent moon concavees lens, the surface of contact gummed of the described first bent moon concavees lens and described biconvex lens, between described biconcave lens and the first bent moon concavees lens spacer ring is set, between biconvex lens and the second bent moon concavees lens spacer ring is set, the thick numerical value in the center of described bent moon convex lens is 1.87mm, external diameter 8mm, nearly thing side spherical radius 7.645mm, thing side spherical radius 29.491 mm far away, camber 0.27mm, material is LAF52; The thick numerical value in the center of described biconcave lens is 1.65mm, external diameter 8mm, and nearly thing side spherical radius 19.886mm, camber 0.36mm, thing side spherical radius 7.003mm far away, camber 0.56mm, material is F5; The thick numerical value in the center of the described first bent moon concavees lens is 0.87mm, external diameter 7mm, and nearly thing side spherical radius 25.26mm, thing side spherical radius 7.5225mm far away, camber 0.8mm, material is ZF5; The thick numerical value in the center of described biconvex lens is 2.37mm, external diameter 7mm, and nearly thing side spherical radius 7.4225mm, thing side spherical radius 10.74mm far away, material is LAK12; The thick numerical value in the center of the described second bent moon concavees lens is 3.52mm, external diameter 7mm, and nearly thing side spherical radius 7.4225mm, thing side spherical radius 7.05mm far away, camber 0.55mm, material is ZK7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910064530 CN101510001B (en) | 2009-03-31 | 2009-03-31 | Long-focus lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910064530 CN101510001B (en) | 2009-03-31 | 2009-03-31 | Long-focus lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101510001A CN101510001A (en) | 2009-08-19 |
| CN101510001B true CN101510001B (en) | 2013-08-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910064530 Expired - Fee Related CN101510001B (en) | 2009-03-31 | 2009-03-31 | Long-focus lens |
Country Status (1)
| Country | Link |
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| CN (1) | CN101510001B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707405B (en) * | 2012-06-07 | 2014-04-02 | 北京天诚盛业科技有限公司 | Prime lens for collecting iris images |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2886907B2 (en) * | 1989-10-25 | 1999-04-26 | 旭光学工業株式会社 | Soft focus lens |
| US5940224A (en) * | 1998-03-16 | 1999-08-17 | Nikon Corporation | Wide band infrared camera lens systems |
| JP2002082282A (en) * | 2000-09-06 | 2002-03-22 | Ricoh Co Ltd | Original reading lens, original reading lens unit, original reading module, original reading method, original reader, and image information processor |
| CN2516987Y (en) * | 2002-01-22 | 2002-10-16 | 玉晶光电(厦门)有限公司 | Imaging lens |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3739529B2 (en) * | 1996-12-06 | 2006-01-25 | オリンパス株式会社 | Zoom lens |
-
2009
- 2009-03-31 CN CN 200910064530 patent/CN101510001B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2886907B2 (en) * | 1989-10-25 | 1999-04-26 | 旭光学工業株式会社 | Soft focus lens |
| US5940224A (en) * | 1998-03-16 | 1999-08-17 | Nikon Corporation | Wide band infrared camera lens systems |
| JP2002082282A (en) * | 2000-09-06 | 2002-03-22 | Ricoh Co Ltd | Original reading lens, original reading lens unit, original reading module, original reading method, original reader, and image information processor |
| CN2516987Y (en) * | 2002-01-22 | 2002-10-16 | 玉晶光电(厦门)有限公司 | Imaging lens |
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| Publication number | Publication date |
|---|---|
| CN101510001A (en) | 2009-08-19 |
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Granted publication date: 20130807 Termination date: 20160331 |
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| CF01 | Termination of patent right due to non-payment of annual fee |