CN202083826U - Fixed focus and super wide angle monitoring camera - Google Patents
Fixed focus and super wide angle monitoring camera Download PDFInfo
- Publication number
- CN202083826U CN202083826U CN2011201957106U CN201120195710U CN202083826U CN 202083826 U CN202083826 U CN 202083826U CN 2011201957106 U CN2011201957106 U CN 2011201957106U CN 201120195710 U CN201120195710 U CN 201120195710U CN 202083826 U CN202083826 U CN 202083826U
- Authority
- CN
- China
- Prior art keywords
- lens
- eyeglass
- planes
- monitoring camera
- image planes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Lenses (AREA)
Abstract
The utility model provides a fixed focus and super wide angle monitoring camera. The monitoring camera comprises a lens barrel and lenses; the lens 1, the lens 2, the lens 3, the lens 4, the lens 5 and the lens 6 are sequentially arranged in a cavity of the lens barrel from an object space to common optical axes of the lenses at certain intervals, wherein a diaphragm is arranged between the lens 3 and the lens 4, object planes and image planes of the lens 2 and the lens 6 towards the object space are aspheric, and an image plane of the lens 5 is a plane. The whole focal length of the lenses is 0.97mm, and glass object planes and image planes protected by chips are planes; when a circular display mode is adopted, a field angle of a camera lens is 200 DEG, and the diameter of the image plane is 3.8mm; when a rectangular display mode is adopted, the field angle of the camera lens is 180 DEG * 90 DEG, and the size of the image plane is 3.4mm * 1.6mm. A cap and a separating ring are made of aluminum alloy, and the lens barrel is made of high-hardness plastic PPS (Polyphenylene Sulfite) plus 30% glass fiber, so that the strength of the camera lens is increased; and a sealing ring is adopted to achieve the sealing effect. The monitoring camera together with a digital chip can forms a set of imaging system which is applied to the safety monitoring field; and the horizontal field angle of the monitoring camera can exceed 180 DEG.
Description
Technical field
The utility model relates to optical lens, relates in particular to the small-sized number that is applied to monitor and focuses bugeye lens.
Background technology
Along with the digital image-forming technology rapid development, digital imaging system is widely used in the security monitoring field.As the security monitoring camera lens, except needing higher pixel, also need the field angle of camera lens enough big, promptly the visible angle of camera lens is the bigger the better.Wide-angle monitoring display mode on the market mainly contains following 2 kinds at present:
1. circular the demonstration: display mode is that drawing is circular, and advantage is not lose the field angle of camera lens, and visible angle is the full field angle of camera lens, and shortcoming is that this type of demonstration can't be to the wide-angle lens correction that distorts, so the one-tenth distortion of image of city's field edge is serious;
2. rectangle shows: drawing is a rectangle during demonstration, advantage is that the image that is obtained is the rectangle part in the whole image planes, therefore be convenient to image is carried out processes and displays, the deformation extent of image is significantly reduced, be convenient to watch, it is the part of whole imaging surface that but shortcoming is the image of this type of demonstration, therefore can lose a part of visual field.
These two kinds of display modes cut both ways, and circular demonstration field angle is big but anamorphose is serious, and the distortion of rectangle display image is little but field angle is little.A field angle for present camera lens, needs two supervisory systems combinations greater than the 180 rectangle display monitoring systems of spending at least if desired, can meet the demands.A watch-dog is reached if desired, at first needs a camera lens that field angle is enough big, and during with assurance intercepting rectangle image planes, the horizontal field of view angle can be more than or equal to 180 degree, and the field angle of this camera lens generally is greater than 195 degree and just can meets the demands.
The utility model content
The purpose of this utility model provides a kind of super wide-angle monitoring lens assembly that focuses, and overcomes circle and shows that field angle is big but anamorphose is serious, and the distortion of rectangle display image is little but field angle is little; During with assurance intercepting rectangle image planes, the horizontal field of view angle can be more than or equal to 180 degree.Be applicable to that a field angle is greater than the 180 rectangle display monitoring systems of spending if desired.
The utility model adopts related art scheme:
A kind of super wide-angle monitoring lens assembly that focuses comprises lens barrel, eyeglass, in the cavity of lens barrel, is provided with eyeglass one, eyeglass two, eyeglass three, eyeglass four, eyeglass five, the eyeglass six of mutual maintenance one determining deviation successively to the eyeglass common optical axis from object space; Between eyeglass three, eyeglass four, be provided with diaphragm; Towards the eyeglass two of object space direction, the object plane and the image planes of eyeglass six is aspheric surface, and eyeglass five image planes are the plane.
The whole focal length of eyeglass is 0.97mm, and chip cover glass object plane, image planes are the plane, and when adopting circular display mode, the field angle of this camera lens is 200 °, and the image planes diameter is 3.8mm; When adopting the rectangle display mode, the field angle of this camera lens is 180 ° x90 °, and image planes are of a size of 3.4mmx1.6mm.
Use the material of aluminium alloy as cap and spacer ring, lens barrel uses high rigidity plastics PPS to add 30% glass, has improved the intensity of camera lens.Wherein use O-ring seal to play sealing effectiveness.
Beneficial effect
The utility model cooperates digital chip to constitute a cover imaging system, is used for the security monitoring field, and the horizontal field of view angle can be above 180 °.
Description of drawings
Further specify the utility model below in conjunction with accompanying drawing and case study on implementation.
The concrete optical design figure of Fig. 1;
Fig. 2 monitors lens profile figure figure.
Number in the figure
1, eyeglass 1, eyeglass 23, eyeglass 34, eyeglass 45, eyeglass five
6, eyeglass 67, aperture 8, object space 9, cover glass 10, image planes
11, spacer ring 1, spacer ring 2 13, spacer ring 3 14, spacer ring 4 15, spacer ring five
16, O-ring seal 17, cap 18, lens barrel
Embodiment
1. should design concrete optical design as shown in Figure 1:
The one chip lens parameters that goes out by the optical design software board design is as follows:
Focal length 0.97mm
Aperture F/#2.0
200 ° of full field angle
Image planes size 3.8mm
When adopting circular display mode, the field angle of this camera lens is 200 °, and the image planes diameter is 3.8mm;
When adopting the rectangle display mode, the field angle of this camera lens is 180 ° x90 °, and image planes are of a size of 3.4mmx1.6mm:
Listed the detail parameters of this design in the form 1, first ranks have been lifted the major parameter focal distance f=0.97mm of this camera lens, aperture F/#=2.0, and optics track length overall TT=17.06mm resembles high h=3.8mm. when 200 ° of full field angle
Listed in the title block of form 1: " surface ", " type ", " radius-of-curvature ", " thickness ", " refractive index " and " Abbe coefficient ".The lens element material is defined by refractive index and Abbe coefficient.In form 1, a blank cell in " refractive index " row represents that the value in " thickness " cell on its next door is a distance to next lens surface summit." refractive index " row provide the refractive index of lens materials when wavelength 588nm.
In form 1, the object plane radius-of-curvature is infinitely great, i.e. plane is apart from culminating point infinite distance, next surface (eyeglass 1 object plane); Surface 1 is eyeglass 1 object plane, and this face is a sphere, and radius-of-curvature is 18.000mm, and apart from next surface (eyeglass 1 image planes) culminating point 1.000mm, promptly eyeglass 1 center thickness is 1.000mm, and refractive index is 1.713008, Abbe coefficient 53.879; Surface 2 is eyeglass 1 image planes, and this face is a sphere, and radius-of-curvature is-6.017416mm, apart from next surface (eyeglass two object planes) 1.693421mm; Surface 3 is eyeglass two object planes, this face is an aspheric surface, the aspheric surface parameter sees Table lattice 2, the curvature of centre radius is-6.017416mm, this face culminating point is apart from next surface (eyeglass two image planes) culminating point 1.000mm, be that eyeglass two center thicknesses are 1.000mm, refractive index is 1.531160, Abbe coefficient 56.043; Surface 4 is eyeglass two image planes, and this face is an aspheric surface, and the aspheric surface parameter sees Table lattice 2, and the curvature of centre radius is 2.340417mm, apart from next surface (eyeglass three object planes) 1.693421mm; Surface 5 is eyeglass three object planes, and this face is a sphere, and radius-of-curvature is 8.812577mm, this face culminating point is apart from next surface (eyeglass three image planes) culminating point 1.500mm, be eyeglass three center thickness 1.500mm, refractive index is 1.846663, Abbe coefficient 23.826; Surface 6 is the image planes of eyeglass three, and this face is a sphere, and radius-of-curvature is-8.812577mm, apart from next surface (aperture) 1.698956mm; Surface 7 is the aperture face, and aperture is virtual, and the thickness infinitesimal is apart from next lens surface (eyeglass four object planes) culminating point 0.724834mm; Surface 8 is eyeglass four object planes, and this face is a sphere, and radius-of-curvature is 5.584206mm, apart from next surface (eyeglass four image planes or eyeglass five object planes) culminating point 2.200mm, be that eyeglass four center thicknesses are 2.200mm, refractive index is 1.729159, Abbe coefficient 54.659; Surface 9 is eyeglass four image planes, since this face and the object plane spacing of eyeglass five be 0 and the surface curvature radius identical, therefore, surface 9 both had been that the image planes of eyeglass four also are the object plane of eyeglass five, and this face is a sphere, and radius-of-curvature is-2.500mm, apart from next surface (eyeglass five image planes) 0.500mm, the center thickness that reaches eyeglass five is 0.5mm, and refractive index is 1.922860, Abbe coefficient 20.880; Surface 10 is eyeglass five image planes, and this face is the plane, and this face culminating point is apart from next surface (eyeglass six object planes) culminating point 0.1mm; Surface 11 is eyeglass six object planes, and this face is an aspheric surface, and the aspheric surface parameter sees Table lattice 2, the curvature of centre radius is 3.339090mm, and apart from next surface (eyeglass six image planes) 1.826484mm, promptly eyeglass three center thicknesses are 1.826484mm, refractive index is 1.531160, Abbe coefficient 56.043; Surface 12 is eyeglass six image planes, and this face is an aspheric surface, and the aspheric surface parameter sees Table lattice 2, and the curvature of centre radius is-2.398943, and this face culminating point is apart from next surface (chip cover glass object plane) culminating point 1.749906mm; Surface 13 is a chip cover glass object plane, and this face is the plane, apart from next surface (chip cover glass image planes) 0.400mm, and the thick 0.400mm of chip cover glass, refractive index is 1.516374, Abbe coefficient 64.115; Surface 13 is chip cover glass image planes, and this face is the plane, apart from next surface (image planes) 0.125mm; Surface 15 is the lens imaging face.Occurrence is seen following form 1:
2. the parameter specification of eyeglass is as follows:
Employed eyeglass two and eyeglass six are aspherical lens in this design, and its aspheric surface meets following general aspheric surface formula:
Each parameter occurrence form 2 as follows wherein:
3. be somebody's turn to do a practical application example of design, as shown in Figure 2:
In this is used, use the material of aluminium alloy as cap and spacer ring, lens barrel uses high rigidity plastics PPS to add 30% glass, has improved the intensity of camera lens.Wherein use O-ring seal to play sealing effectiveness.
Claims (3)
1. one kind focuses super wide-angle monitoring camera lens, comprise lens barrel, eyeglass, it is characterized in that: in the cavity of lens barrel, be provided with eyeglass one, eyeglass two, eyeglass three, eyeglass four, eyeglass five, the eyeglass six of mutual maintenance one determining deviation successively to the eyeglass common optical axis from object space; Between eyeglass three, eyeglass four, be provided with diaphragm; Towards the eyeglass two of object space direction, the object plane and the image planes of eyeglass six is aspheric surface, and eyeglass five image planes are the plane.
2. monitoring camera lens according to claim 1 is characterized in that: when adopting circular display mode, the field angle of described camera lens is 200 °, and the image planes diameter is 3.8mm; When adopting the rectangle display mode, the field angle of described camera lens is 180 ° x90 °, and image planes are of a size of 3.4mmx1.6mm.
3. monitoring camera lens according to claim 1 is characterized in that: the whole focal length of described eyeglass is 0.97mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201957106U CN202083826U (en) | 2011-06-10 | 2011-06-10 | Fixed focus and super wide angle monitoring camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201957106U CN202083826U (en) | 2011-06-10 | 2011-06-10 | Fixed focus and super wide angle monitoring camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202083826U true CN202083826U (en) | 2011-12-21 |
Family
ID=45344450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201957106U Expired - Lifetime CN202083826U (en) | 2011-06-10 | 2011-06-10 | Fixed focus and super wide angle monitoring camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202083826U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293639A (en) * | 2013-06-10 | 2013-09-11 | 河南同城光电有限公司 | High-resolution moving image acquiring lens and automobile data recorder with same |
| CN103513399A (en) * | 2012-06-29 | 2014-01-15 | 桑来斯光电科技(上海)有限公司 | Compact type fish-eye objective lens |
| CN103576290A (en) * | 2013-10-30 | 2014-02-12 | 宁波舜宇车载光学技术有限公司 | Wide-angle lens |
| CN103941395A (en) * | 2014-05-14 | 2014-07-23 | 中山联合光电科技有限公司 | Infrared confocal optical system with low temperature excursion, low cost and high pixel |
| CN104360460A (en) * | 2014-12-01 | 2015-02-18 | 东莞市奥普特自动化科技有限公司 | Machine vision camera lens with 8mm fixed focus |
| CN105204145A (en) * | 2015-10-22 | 2015-12-30 | 舜宇光学(中山)有限公司 | Day-night dual-purpose wide-angle monitoring lens |
| CN105629438A (en) * | 2016-01-19 | 2016-06-01 | 舜宇光学(中山)有限公司 | High pixel monitoring lens |
| CN105980904A (en) * | 2014-02-12 | 2016-09-28 | 日本电产三协株式会社 | Lens unit and imaging device |
| CN106468824A (en) * | 2015-08-21 | 2017-03-01 | 信泰光学(深圳)有限公司 | Wide-angle optical lens |
| US9823445B2 (en) | 2016-04-20 | 2017-11-21 | Largan Precision Co., Ltd. | Imaging optical lens assembly, image capturing unit and electronic device |
| US11262538B2 (en) | 2018-06-13 | 2022-03-01 | Largan Precision Co., Ltd. | Photographing optical lens system, image capturing unit and electronic device |
-
2011
- 2011-06-10 CN CN2011201957106U patent/CN202083826U/en not_active Expired - Lifetime
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103513399A (en) * | 2012-06-29 | 2014-01-15 | 桑来斯光电科技(上海)有限公司 | Compact type fish-eye objective lens |
| CN103513399B (en) * | 2012-06-29 | 2017-06-23 | 桑来斯光电科技(上海)有限公司 | Compact fish-eye lens |
| CN103293639A (en) * | 2013-06-10 | 2013-09-11 | 河南同城光电有限公司 | High-resolution moving image acquiring lens and automobile data recorder with same |
| CN103293639B (en) * | 2013-06-10 | 2015-09-02 | 河南同城光电有限公司 | A kind of high pixel sound state image capturing camera lens and use the drive recorder of this camera lens |
| CN103576290A (en) * | 2013-10-30 | 2014-02-12 | 宁波舜宇车载光学技术有限公司 | Wide-angle lens |
| CN103576290B (en) * | 2013-10-30 | 2016-01-06 | 宁波舜宇车载光学技术有限公司 | A kind of wide-angle lens |
| CN105980904B (en) * | 2014-02-12 | 2019-08-13 | 日本电产三协（东莞）工机有限公司 | Lens unit and photographic device |
| CN105980904A (en) * | 2014-02-12 | 2016-09-28 | 日本电产三协株式会社 | Lens unit and imaging device |
| CN103941395A (en) * | 2014-05-14 | 2014-07-23 | 中山联合光电科技有限公司 | Infrared confocal optical system with low temperature excursion, low cost and high pixel |
| CN104360460A (en) * | 2014-12-01 | 2015-02-18 | 东莞市奥普特自动化科技有限公司 | Machine vision camera lens with 8mm fixed focus |
| CN106468824A (en) * | 2015-08-21 | 2017-03-01 | 信泰光学(深圳)有限公司 | Wide-angle optical lens |
| CN106468824B (en) * | 2015-08-21 | 2019-02-12 | 信泰光学(深圳)有限公司 | Wide-angle optical lens |
| CN105204145A (en) * | 2015-10-22 | 2015-12-30 | 舜宇光学(中山)有限公司 | Day-night dual-purpose wide-angle monitoring lens |
| CN105629438A (en) * | 2016-01-19 | 2016-06-01 | 舜宇光学(中山)有限公司 | High pixel monitoring lens |
| CN105629438B (en) * | 2016-01-19 | 2019-01-11 | 舜宇光学(中山)有限公司 | A kind of high pixel monitoring camera |
| US10365459B2 (en) | 2016-04-20 | 2019-07-30 | Largan Precision Co., Ltd. | Imaging optical lens assembly, image capturing unit and electronic device |
| US9823445B2 (en) | 2016-04-20 | 2017-11-21 | Largan Precision Co., Ltd. | Imaging optical lens assembly, image capturing unit and electronic device |
| US11262538B2 (en) | 2018-06-13 | 2022-03-01 | Largan Precision Co., Ltd. | Photographing optical lens system, image capturing unit and electronic device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202083826U (en) | Fixed focus and super wide angle monitoring camera | |
| US9488804B2 (en) | Optical imaging lens | |
| CN202837661U (en) | Image capturing optical lens assembly | |
| CN103901584B (en) | Image capturing optical lens assembly | |
| CN102981246B (en) | Image lens assembly | |
| CN202886721U (en) | Wide-angle optical lens assembly | |
| CN202003076U (en) | Lens system | |
| US7009783B2 (en) | Pickup lens | |
| US8422151B2 (en) | Wide-angle imaging lens module | |
| US8031413B2 (en) | Single focus wide-angle lens module | |
| CN105388587A (en) | Optical image pickup system group | |
| CN102854606A (en) | Optical image capturing lens assembly | |
| CN104297901A (en) | Image capturing lens assembly and image capturing device | |
| CN102466867A (en) | Optical camera lens group | |
| CN104614838A (en) | Imaging lens assembly, image capturing device and portable device | |
| WO2013161216A1 (en) | Imaging apparatus and electronic system | |
| CN107741625A (en) | A kind of low-cost and high-performance drive recorder camera lens | |
| CN103728713B (en) | Photographing lens assembly | |
| CN203299443U (en) | Wide-angle five-piece imaging lens group | |
| CN203133373U (en) | Ultra-wide angle fish-eye lens | |
| CN103543516B (en) | A kind of LONG WAVE INFRARED wide-angle lens | |
| CN207216121U (en) | A kind of large aperture wide-angle LONG WAVE INFRARED tight shot | |
| CN102455484B (en) | Optical imaging system | |
| CN204439916U (en) | Rearmounted aperture diaphragm high definition flake video camera lens | |
| CN206248906U (en) | A kind of unmanned plane camera lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111221 |
|
| CX01 | Expiry of patent term |