CN201984200U - Ultra-wide-angle high-resolution daytime and nighttime dual-purpose pickup lens - Google Patents

Ultra-wide-angle high-resolution daytime and nighttime dual-purpose pickup lens Download PDF

Info

Publication number
CN201984200U
CN201984200U CN2010206929485U CN201020692948U CN201984200U CN 201984200 U CN201984200 U CN 201984200U CN 2010206929485 U CN2010206929485 U CN 2010206929485U CN 201020692948 U CN201020692948 U CN 201020692948U CN 201984200 U CN201984200 U CN 201984200U
Authority
CN
China
Prior art keywords
lens
angle
biconvex lens
biconvex
wide
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
Application number
CN2010206929485U
Other languages
Chinese (zh)
Inventor
张世忠
刘辉
李海军
江焕超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujian Forecam Optics Co Ltd
Original Assignee
Fujian Forecam Optics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujian Forecam Optics Co Ltd filed Critical Fujian Forecam Optics Co Ltd
Priority to CN2010206929485U priority Critical patent/CN201984200U/en
Application granted granted Critical
Publication of CN201984200U publication Critical patent/CN201984200U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

The utility model relates to an ultra-wide-angle high-resolution daytime and nighttime dual-purpose pickup lens, which comprises a main lens barrel and is characterized in that a front element (A) with negative focal power and a rear element (B) with positive focal element are sequentially arranged in the lens barrel along the incident direction of an optical path from the left to the right, the front element (A) comprises a negative crescent lens (A-1) and a negative crescent lens (A-2) which are sequentially arranged, and the rear element (B) comprises a biconvex lens (B-1), a biconvex lens (B-2) and a glued element which is formed by a biconvex lens (B-3) and a negative crescent lens (B-4) which are tightly connected. The ultra-wide-angle high-resolution daytime and nighttime dual-purpose pickup lens has the advantages of ultra wide angle, strong optical force, high definition and wide-spectrum confocal performance, full-interface clear images which are superior to two million pixels can be provided to a high-definition network image pickup system, and the goals of 24-hour continuous monitoring and no image focus shift during daytime and nighttime switching can be achieved.

Description

Super wide-angle high resolution day and night pick-up lens
Technical field
The utility model belongs to field of photoelectric technology, relates to the video camera lens device.
Background technology
Ultra wide-angle imaging camera lens as Fig. 2 structural shape was used more than 10 year in the video camera field, its performance index are not high, especially it can only be adaptive with the SD CCD or the cmos camera of 20~300,000 pixels aspect image definition, can only adapt to the needs that the monitoring field " is seen ", and the spectral range that adapts to is narrow, and the illumination condition in daytime that is confined to 480nm~650nm uses down.
Along with the continuous appearance of 1,000,000 grades of pixel high-resolution CCD, cmos image sensor, photo electric video frequency monitoring has stepped into network times; The performance of video camera system by in the past to external world pure " the watching " of scenery to now " identification and cognitive "; From in the past can only be to daylight according to the 24 hours continual continuous monitorings that monitor under the condition; And not burnt partially when day and night switching, need not on-the-spot focusing.
For adapting to above-mentioned development trend, lifting image information sampling instrument---the performance of pick-up lens is vital, and there is the deficiency of technical feature in existing wide-angle lens, has restricted the raising of camera system performance.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned defective, a have super wide-angle, high light power, high resolving power, the confocal performance of wide spectrum are provided, can be the super wide-angle high resolution day and night pick-up lens that high definition network shooting system provides the full interface picture rich in detail that is better than 2,000,000 pixels.
The technical solution of the utility model is: a kind of super wide-angle high resolution day and night pick-up lens, comprise body tube, it is characterized in that: in the described body tube along light path from left to right incident direction to be disposed with focal power be back group positive (B) for negative preceding group (A) and focal power, group (A) comprises negative selenodont lens (A-1) and the negative selenodont lens (A-2) that set gradually before described, and described back group (B) comprises the biconvex lens (B-1) that sets gradually, the gummed group that biconvex lens (B-2) and biconvex lens (B-3) and negative selenodont lens (B-4) connect airtight.
Be provided with light hurdle C between described biconvex lens (B-1) and the biconvex lens (B-2).
Airspace before described between group (A) and the back group (B) is 8.100mm, the airspace of bearing between selenodont lens (A-1) and the negative selenodont lens (A-2) in the group (A) before described is 2.625mm, airspace in the described back group (B) between biconvex lens (B-1) and light hurdle (C) is 7.657mm, airspace between described smooth hurdle (C) and the biconvex lens (B-2) is 0.443mm, and described biconvex lens (B-2) and the airspace of being connected airtight by biconvex lens (B-3) and negative selenodont lens (B-4) between the gummed group of formation are 0.200mm.
Be provided with trim ring (1) between described negative selenodont lens (A-1) front side and the body tube, be provided with spacer ring (2) between described negative selenodont lens (A-2) and the biconvex lens (B-1), be provided with spacer ring (4) between described biconvex lens (B-1) and the biconvex lens (B-2), described biconvex lens (B-2) and connect airtight by biconvex lens (B-3) and negative selenodont lens (B-4) between the gummed group of formation and be provided with spacer ring (7).
The stepped radius of described trim ring (1) inwall reduces gradually, and described spacer ring (4) inwall is provided with some steps.
The inwall of described spacer ring (4) and spacer ring (7) is provided with the delustring line.
Body tube (3) rear side outer wall is provided with external thread, is connected in order to the Connection Block (6) that is provided with internal thread with inwall, and the footpath of described Connection Block (6) upwards is provided with to be passed Connection Block (6) and body tube (3) and realize the locking nail (5) that contacts.
Advantage of the present utility model is: the focal power of 1, organizing A and back group B in the optical texture of this retrofocus type before the reasonable distribution.In the group B of back, the 3rd lens of three-chip type Ke Ke type structure are changed into the cemented doublet group, make camera lens reach object lens of large relative aperture, super wide-angle, the short performance index of structure length.
2, by the reasonable optical glass material of matching forward and backward two groups six five groups, select the optical glass material of high index of refraction, low chromatic dispersion for use as far as possible, by area of computer aided optical design and optimization, the various aberrations of optical lens have been proofreaied and correct perfectly, make the resolution height of camera lens, can adapt to the requirement of 2,000,000 pixel high definition videos shooting.
3, the wide spectral range to 480nm~850nm carries out aberration correction and balance when optical design, makes camera lens at wide spectral range good picture element be arranged all, has realized that wide spectrum is confocal.Camera lens can not only photoenvironment in the daytime under blur-free imaging, also can blur-free imaging under the environment of night utmost point low-light (level) or zero illumination by infrared light filling, realized 24 hours continuous monitorings, and burnt partially when day and night switching, focus in the scene that need not.
4, when structural design, both guaranteed the concentricity of camera lens and axial location accurately, make every effort to the compact conformation of camera lens again; In order to eliminate the parasitic light of camera lens, the inwall of the spacer ring between the spacer ring between B-1 and the B-2, B-2 and B-4 has been made the delustring line, thereby has eliminated the halation problem simultaneously.
5, design rear end little " focusing " structure, remedied the little defective of the heavy caliber camera lens depth of field.
Description of drawings
Fig. 1 is a light channel structure synoptic diagram of the present utility model.
Fig. 2 is the light channel structure synoptic diagram of the index path of under the present prior art condition and camera lens common pixel camera machine adapted.
Fig. 3 is a structural representation of the present utility model.
Embodiment
A kind of super wide-angle high resolution day and night pick-up lens, comprise body tube, it is characterized in that: in the described body tube along light path from left to right incident direction to be disposed with focal power be back group positive (B) for negative preceding group (A) and focal power, group (A) comprises negative selenodont lens (A-1) and the negative selenodont lens (A-2) that set gradually before described, and the gummed group that (B) comprises that the biconvex lens (B-1), biconvex lens (B-2) and the biconvex lens (B-3) that set gradually and negative selenodont lens (B-4) connect airtight is organized in described back.
Because super wide-angle high resolution day and night pick-up lens resolution described in the utility model is very high, and the resolution of visual field, edge and visual field, center does not allow very big difference, so in structural design, to guarantee actions such as the concentricity of each constituent element of system and focusing accurately, steadily, so all eyeglasses are placed in the body tube, because body tube is produced, thereby guaranteed the right alignment of whole optical path on same board; Make the off-axis aberration of optical lens reach designing requirement.
Be provided with light hurdle C between described biconvex lens (B-1) and the biconvex lens (B-2).
Airspace before described between group (A) and the back group (B) is 8.100mm, the airspace of bearing between selenodont lens (A-1) and the negative selenodont lens (A-2) in the group (A) before described is 2.625mm, airspace in the described back group (B) between biconvex lens (B-1) and light hurdle (C) is 7.657mm, airspace between described smooth hurdle (C) and the biconvex lens (B-2) is 0.443mm, and described biconvex lens (B-2) and the airspace of being connected airtight by biconvex lens (B-3) and negative selenodont lens (B-4) between the gummed group of formation are 0.200mm.
For fixing len and guarantee airspace between each eyeglass, trim ring and spacer ring have been designed respectively, be provided with trim ring (1) between described negative selenodont lens (A-1) front side and the body tube, be provided with spacer ring (2) between described negative selenodont lens (A-2) and the biconvex lens (B-1), be provided with spacer ring (4) between described biconvex lens (B-1) and the biconvex lens (B-2), described biconvex lens (B-2) and connect airtight by biconvex lens (B-3) and negative selenodont lens (B-4) between the gummed group of formation and be provided with spacer ring (7).
The stepped radius of described trim ring (1) inwall reduces gradually, and described spacer ring (4) inwall is provided with some steps.
Trim ring (1) will be put in order set of contact lenses and fix, prevent that eyeglass is loosening or drop out, but inwall is made stepped absorption edge parasitic light simultaneously, described spacer ring (2) is used to guarantee negative selenodont lens (A-2), airspace between the biconvex lens (B-1), described spacer ring (4) has guaranteed the airspace between biconvex lens (B-1) and the biconvex lens (B-2), simultaneously this spacer ring is made not only having saved material but also can better having played the effect of interception parasitic light of step, spacer ring (7) principal security biconvex lens (B-2) and connected airtight airspace between the gummed group of formation by biconvex lens (B-3) and negative selenodont lens (B-4).
The inwall of described spacer ring (4) and spacer ring (7) is provided with the delustring line, light path described in the utility model is relatively more responsive to the influence of parasitic light, respectively the inwall of spacer ring (4), spacer ring (7) is done the delustring line at this problem and handled, thereby increased the influence that the area that receives parasitic light reduces parasitic light.
Body tube (3) rear side outer wall is provided with external thread, be connected in order to the Connection Block (6) that is provided with internal thread with inwall, the footpath of described Connection Block (6) upwards is provided with passes the locking nail (5) that Connection Block (6) contacts with body tube (3) realization, can drive Connection Block (6) rotation by locking nail (5), thereby whole optical system is moved vertically, can realize the interior focusing of 1mm among a small circle like this, in the assembling of main tube and Connection Block, by grinding, guarantee that the precision that cooperates between the screw thread improves the precision of focusing, thereby guarantee the concentricity of camera lens in the burnt process of fine setting.
The technical indicator that the utility model is realized is as follows:
1, focal length: f '=4mm;
2, relative aperture D/F=1/1.4;
3, field angle 2 ω: 88 °;
4, be suitable for spectral range: 480nm~850nm;
5, resolution: adaptive with the high-definition camera of 2,000,000 pixels;
6, light path length overall ∑≤34mm.
The above only is preferred embodiment of the present utility model, and all equalizations of being done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.

Claims (7)

1. super wide-angle high resolution day and night pick-up lens, comprise body tube, it is characterized in that: in the described body tube along light path from left to right incident direction to be disposed with focal power be back group positive (B) for negative preceding group (A) and focal power, group (A) comprises negative selenodont lens (A-1) and the negative selenodont lens (A-2) that set gradually before described, and the gummed group that (B) comprises that the biconvex lens (B-1), biconvex lens (B-2) and the biconvex lens (B-3) that set gradually and negative selenodont lens (B-4) connect airtight is organized in described back.
2. super wide-angle high resolution day and night pick-up lens according to claim 1 is characterized in that: be provided with light hurdle C between described biconvex lens (B-1) and the biconvex lens (B-2).
3. super wide-angle high resolution day and night pick-up lens according to claim 2, it is characterized in that: the airspace before described between group (A) and the back group (B) is 8.100mm, the airspace of bearing between selenodont lens (A-1) and the negative selenodont lens (A-2) in the group (A) before described is 2.625mm, airspace in the described back group (B) between biconvex lens (B-1) and light hurdle (C) is 7.657mm, airspace between described smooth hurdle (C) and the biconvex lens (B-2) is 0.443mm, and described biconvex lens (B-2) and the airspace of being connected airtight by biconvex lens (B-3) and negative selenodont lens (B-4) between the gummed group of formation are 0.200mm.
4. super wide-angle high resolution day and night pick-up lens according to claim 1, it is characterized in that: be provided with trim ring (1) between described negative selenodont lens (A-1) front side and the body tube, be provided with spacer ring (2) between described negative selenodont lens (A-2) and the biconvex lens (B-1), be provided with spacer ring (4) between described biconvex lens (B-1) and the biconvex lens (B-2), described biconvex lens (B-2) and connect airtight by biconvex lens (B-3) and negative selenodont lens (B-4) between the gummed group of formation and be provided with spacer ring (7).
5. super wide-angle high resolution day and night pick-up lens according to claim 4 is characterized in that: the stepped radius of described trim ring (1) inwall reduces gradually, and described spacer ring (4) inwall is provided with some steps.
6. according to claim 4 or 5 described super wide-angle high resolution day and night pick-up lenss, it is characterized in that: the inwall of described spacer ring (4) and spacer ring (7) is provided with the delustring line.
7. super wide-angle high resolution day and night pick-up lens according to claim 1, it is characterized in that: body tube (3) rear side outer wall is provided with external thread, be connected in order to the Connection Block (6) that is provided with internal thread with inwall, the footpath of described Connection Block (6) upwards is provided with to be passed Connection Block (6) and body tube (3) and realizes the locking nail (5) that contacts.
CN2010206929485U 2010-12-31 2010-12-31 Ultra-wide-angle high-resolution daytime and nighttime dual-purpose pickup lens Expired - Lifetime CN201984200U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206929485U CN201984200U (en) 2010-12-31 2010-12-31 Ultra-wide-angle high-resolution daytime and nighttime dual-purpose pickup lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206929485U CN201984200U (en) 2010-12-31 2010-12-31 Ultra-wide-angle high-resolution daytime and nighttime dual-purpose pickup lens

Publications (1)

Publication Number Publication Date
CN201984200U true CN201984200U (en) 2011-09-21

Family

ID=44611658

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010206929485U Expired - Lifetime CN201984200U (en) 2010-12-31 2010-12-31 Ultra-wide-angle high-resolution daytime and nighttime dual-purpose pickup lens

Country Status (1)

Country Link
CN (1) CN201984200U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102004301A (en) * 2010-12-31 2011-04-06 福建福光数码科技有限公司 Ultra-wide-angle high resolution day and night dual-purpose camera lens
CN105068219A (en) * 2015-09-21 2015-11-18 福建福光股份有限公司 High-resolution fisheye lens for day and night use and focusing method thereof
CN106371194A (en) * 2016-11-23 2017-02-01 福建福光股份有限公司 6mm high-light-flux and high-definition prime lens for day and night use

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102004301A (en) * 2010-12-31 2011-04-06 福建福光数码科技有限公司 Ultra-wide-angle high resolution day and night dual-purpose camera lens
CN102004301B (en) * 2010-12-31 2012-05-23 福建福光数码科技有限公司 Ultra-wide-angle high resolution day and night dual-purpose camera lens
CN105068219A (en) * 2015-09-21 2015-11-18 福建福光股份有限公司 High-resolution fisheye lens for day and night use and focusing method thereof
CN105068219B (en) * 2015-09-21 2018-06-26 福建福光股份有限公司 A kind of high resolution day and night fish eye lens and its focus adjustment method
CN106371194A (en) * 2016-11-23 2017-02-01 福建福光股份有限公司 6mm high-light-flux and high-definition prime lens for day and night use

Similar Documents

Publication Publication Date Title
CN102004301B (en) Ultra-wide-angle high resolution day and night dual-purpose camera lens
KR101290516B1 (en) Fixed focus lens system and surveillance camera employing the same
CN106291887B (en) Fisheye lens
CN103913818B (en) The low distortion micro pick-up lens of Large visual angle
CN103116213B (en) Three mega pixels are confocal trigger camera lens day and night
CN103809268B (en) High pass light quantity automatic diaphragm fixed focus lens
CN104155741A (en) Economical high resolution day and night fixed focus lens
CN105425365B (en) The big thang-kng tight shots of 6mm
CN105974567A (en) Zoom lens and image pickup apparatus having same
CN201984200U (en) Ultra-wide-angle high-resolution daytime and nighttime dual-purpose pickup lens
CN103558678A (en) High-definition wide-angle lens
CN202171678U (en) High-resolution zoom lens for intelligent traffic system
CN203376514U (en) Fog-penetrable day and night FA optical system with large imaging surface and high resolution
CN203870315U (en) Automatic aperture prime lens with high light flux
CN106707467B (en) A kind of telephoto lens
CN104204890A (en) Imaging lens and imaging device
CN203250060U (en) Three-mega-pixel day and night P-iris lens
CN103389562B (en) 5 mega-pixel micro camera lens with large target surface
CN104459950A (en) High-resolution miniature lens for daytime and night
CN204556943U (en) High resolving power, low distortion day and night tight shot
CN203825276U (en) Large-viewing-field low-distortion micro camera lens
CN103399391A (en) Ten-million-pixel large-target-surface minitype pickup lens for day and night use
CN204009196U (en) Economical high resolution day and night tight shot
CN105259646A (en) 2.8-8mm small-size zoom lens
CN203422518U (en) Large-format 5-megapixel miniature camera lens

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
AV01 Patent right actively abandoned

Granted publication date: 20110921

Effective date of abandoning: 20120523