CN203759340U - High-precision plastic high-definition lens - Google Patents

High-precision plastic high-definition lens Download PDF

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Publication number
CN203759340U
CN203759340U CN201420100264.XU CN201420100264U CN203759340U CN 203759340 U CN203759340 U CN 203759340U CN 201420100264 U CN201420100264 U CN 201420100264U CN 203759340 U CN203759340 U CN 203759340U
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CN
China
Prior art keywords
lens
camera lens
clearance
casing
gummed
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 - Fee Related
Application number
CN201420100264.XU
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Chinese (zh)
Inventor
吴志良
肖维军
张世忠
林平
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 CN201420100264.XU priority Critical patent/CN203759340U/en
Application granted granted Critical
Publication of CN203759340U publication Critical patent/CN203759340U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a high-precision plastic high-definition lens. A former group A with negative focal power and a rear group B with positive focal power are successively arranged in an optical system of a lens along a light incidence direction from left to right. A variable diaphragm C is arranged between the former group A and the rear group B. The former group A comprises a negative selenodont lens A-1, a double-concave lens A-2 and a first agglutination group tightly connected to a double-convex lens A-3 which are arranged successively. The rear group B comprises a double-convex lens B-1, a negative selenodont lens B-2, a double-convex lens B-3, a second agglutination group tightly connected to a double-concave lens B-4, a double-convex lens B-5 and a convexo-plane lens B-6 which are successively arranged. By using the high-precision plastic high-definition lens, a trigger interface lens can be converted into a CS interface lens and an imaging effect is not influenced; installation and dismounting are convenient; reinforced plastics are used so that high strength and a high elastic coefficient are possessed, high impact intensity is possessed too and a usage temperature scope is wide; an electrical characteristic is good; a lens yield and back focusing consistency are increased.

Description

High precision plastic cement high definition camera lens
Technical field
The utility model relates to a kind of high precision plastic cement high definition camera lens, belongs to the optical pick-up apparatus field of video technique.
Background technology
Along with the raising gradually of scientific and technical fast development, people's awareness of safety, the developing rapidly of safe protection engineering.People also improve accordingly to the requirement of camera lens quality, reinforced plastic, and tool high strength and elasticity coefficient, high impact, serviceability temperature scope are wide, and electrical specification is excellent, is easily moulded and makes, and is that good material is selected.
The CS interface of existing high-precision mold camera lens cannot directly connect conversion and not affect imaging effect from trigger interface direct, cause the accumulation of camera lens or supply falls short of demand, major metal CS interface lens construction and metal trigger interface lens construction are complicated and different, structural complexity influence factor is many, imaging effect is poor, and along with the appearance of high-precision mold camera lens, but still there is the existing problem of metal shot.
Utility model content
In view of this, the purpose of this utility model is to provide one and trigger interface camera lens can be converted to CS interface camera lens and affect imaging effect, and the high precision plastic cement high definition camera lens of easy installation and removal.
The utility model adopts following scheme to realize: a kind of high precision plastic cement high definition camera lens, in the optical system of described camera lens along light from left to right incident direction to be provided with successively focal power be that front group of A and the focal power of bearing is rear group of positive B, between described front group of A and rear group of B, be provided with iris C; The first gummed group that described front group of A connected airtight by the negative selenodont lens A-1 setting gradually and biconcave lens A-2 and biconvex lens A-3 forms, and the second gummed group, lenticular lens B-5 and a protruding flat pattern lens B-6 that described rear group of B connected airtight by the biconvex lens B-1 setting gradually, negative selenodont lens B-2, lenticular lens B-3 and biconcave lens B-4 form.
Further, the clearance between described front group of A and rear group of B is 2.33 ~ 22.137mm.
Further, the clearance in described front group of A between negative selenodont lens A-1 and the first gummed group is 4.6667mm, and the clearance between described the first gummed group and described iris C is 14.736mm.
Further, clearance between biconvex lens B-1 in described iris C and described rear group of B is 7.4mm, clearance between described biconvex lens B-1 and described negative selenodont lens B-2 is 0.19mm, clearance between described negative selenodont lens B-2 and described the second gummed group is 0.15mm, clearance between described the second gummed group and described lenticular lens B-5 is 0.5mm, and the clearance between described lenticular lens B-5 and a protruding flat pattern lens B-6 is 0.2mm.
Further, described camera lens comprises the focusing runner setting gradually from left to right, the front cover shell that front group of A is installed, the rear casing that rear group of B is installed and CS joint, described CS fitting sleeve is located at rear casing middle part and its right-hand member stretches out rear casing right side, and described focusing runner can be socketed with plate machine camera lens.
Further, described rear casing and described CS joint are folded with vertically and turn to shell fragment, between described front cover shell and rear casing, inner clamps is provided with CD-ROM drive, described front cover shell sidepiece is provided with the front lock-screw for locking described front group of A, and described rear casing sidepiece is provided with the rear lock-screw for locking rear group of B.
Further, the material of described focusing runner, front cover shell and rear casing is reinforced plastic.
Compared with prior art, the utlity model has following beneficial effect:
(1) in the optical texture of this retrofocus type reasonable distribution the focal power of front group of A and rear group of B.In rear group of B, the 3rd arrangement of mirrors sheet of three-chip type structure is changed into cemented doublet group, make camera lens reach object lens of large relative aperture, wide-angle, the short performance index of structure length.
(2) by the optical glass material of forward and backward two groups nine seven groups of reasonable selections, select the optical glass material of high index of refraction, low dispersion, by area of computer aided optical design and optimization, the various aberrations of optical lens have been proofreaied and correct perfectly, make the resolution of camera lens high, can adapt to the requirement of 2,000,000 pixel high definition video shootings.
(3) in the time of optical design, the wide spectral range of 480nm~850nm is carried out to aberration correction and balance, make camera lens have good picture element at wide spectral range, realize wide spectrum confocal.Camera lens can not only photoenvironment in the daytime under blur-free imaging, also can blur-free imaging by infrared light filling under the environment of night utmost point low-light (level) or zero illumination, realized monitoring continuously in 24 hours, and in the time day and night switching defocusing not, focus without scene.
(4) camera lens uses reinforced plastic, and tool high strength and elasticity coefficient, high impact, serviceability temperature scope are wide, and electrical specification is excellent, and easily moulded and made, and high, the rear burnt high conformity of high conformity, yield of camera lens batch production.
(5) trigger interface camera lens is converted to CS interface camera lens and does not affect imaging effect, and easy installation and removal.
Brief description of the drawings
Fig. 1 is the optical system schematic diagram of the utility model embodiment;
Fig. 2 is the physical construction schematic diagram of the utility model embodiment;
Number in the figure explanation: 1-focuses on runner 2-front cover shell 3-CD-ROM drive 4-rear casing 5-and turns to after shell fragment 6-CS joint 7-and before lock-screw 9-plate machine camera lens A-, after group B-, organize the negative selenodont lens B-3-lenticular lens B-4-biconcave lens B-5-lenticular lens B-6-mono-protruding flat pattern lens of the negative selenodont lens A-2-biconcave lens A-3-biconvex lens B-1-biconvex lens B-2-of C-iris A-1-before lock-screw 8-.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below will, by specific embodiment and relevant drawings, the utility model be described in further detail.
As shown in Figure 1, a kind of high precision plastic cement high definition camera lens, in the optical system of described camera lens along light from left to right incident direction to be provided with successively focal power be that front group of A and the focal power of bearing is rear group of positive B, between described front group of A and rear group of B, be provided with iris C, the first gummed group that described front group of A connected airtight by the negative selenodont lens A-1 setting gradually and biconcave lens A-2 and biconvex lens A-3 forms, described rear group of B is by the biconvex lens B-1 setting gradually, negative selenodont lens B-2, the second gummed group that lenticular lens B-3 and biconcave lens B-4 connect airtight, lenticular lens B-5 and a protruding flat pattern lens B-6 composition, the light path of camera lens is the optical texture of retrofocus type, rear group of B is in the prototype of three-chip type Ke Ke type structure, the 3rd eyeglass changed into cemented doublet group, to share the focal power of rear group, be beneficial to and improve camera lens relative aperture, be beneficial to the aberration correction of camera lens, the correction of especially wide spectrum aberration.
Simultaneously, in the time of optical design, the wide spectral range of 480nm~850nm is carried out to aberration correction and balance, make camera lens have good picture element at wide spectral range, realize wide spectrum confocal, by the optical glass material of forward and backward two groups nine seven groups of reasonable selections, select the optical glass material of high index of refraction, low dispersion, by area of computer aided optical design and optimization, the various aberrations of optical lens have been proofreaied and correct perfectly, make the resolution of camera lens high, can adapt to the requirement of 2,000,000 pixel high definition video shootings.
In the present embodiment, the clearance between described front group of A and rear group of B is 22.137mm.
In the present embodiment, the clearance in described front group of A between negative selenodont lens A-1 and the first gummed group is 4.6667mm, and the clearance between described the first gummed group and described iris C is 14.736mm.
In the present embodiment, clearance between biconvex lens B-1 in described iris C and described rear group of B is 7.4mm, clearance between described biconvex lens B-1 and described negative selenodont lens B-2 is 0.19mm, clearance between described negative selenodont lens B-2 and described the second gummed group is 0.15mm, clearance between described the second gummed group and described lenticular lens B-5 is 0.5mm, and the clearance between described lenticular lens B-5 and a protruding flat pattern lens B-6 is 0.2mm.
In the present embodiment, the optical system being made up of above-mentioned lens set has reached following optical index:
(1) focal length: f '=2.8~12mm;
(2) relative aperture D/F=1/1.4;
(3) field angle 2 ω: 132 °~35.5 ° (effectively imaging surface n ' >=φ 6.72mm);
(4) be suitable for spectral range: 480nm~850nm;
(5) resolution: with the high-definition camera adaptation of 2,000,000 pixels;
(6) light path overall length ∑ L≤50mm.
As shown in Figure 2, in the present embodiment, described camera lens comprises the focusing runner 1 setting gradually from left to right, the front cover shell 2 that front group of A is installed, the rear casing 4 that rear group of B is installed and CS joint 6, described CS joint 6 is sheathed on rear casing 4 middle parts and its right-hand member stretches out rear casing 4 right sides, described focusing runner 1 can be socketed with plate machine camera lens 9, plate machine camera lens is converted to CS camera lens, do not affect imaging effect, in structural design, guarantee accurate, the steady and good hand touch of the action such as concentricity and focusing of the each constituent element of system.
In the present embodiment, described rear casing 4 and described CS joint 6 are folded with vertically and turn to shell fragment 5, between described front cover shell 2 and rear casing 4, inner clamps is provided with CD-ROM drive 3, described front cover shell 2 sidepieces are provided with the front lock-screw 8 for locking described front group of A, and described rear casing 4 sidepieces are provided with the rear lock-screw 7 for locking rear group of B.
In the present embodiment, the material of described focusing runner 1, front cover shell 2 and rear casing 4 is reinforced plastic, tool high strength and elasticity coefficient, high impact, serviceability temperature scope are wide, electrical specification is excellent, easily moulded and made, realize camera lens batch production, high conformity, raising camera lens yield and rear burnt consistance.
When assembling, only need will focus on runner 1, front outer cover 2, rear outer cover 4, turn to shell fragment 5 and CS interface 6 these five parts to be directly installed on trigger camera lens 9, and install CD-ROM drive 3, rear lock-screw 7, front lock-screw 8 and just can directly trigger camera lens 9 be converted to CS camera lens, do not affect imaging effect, realized the efficient conversion of trigger camera lens 9 with CS camera lens.
Above-listed preferred embodiment; the purpose of this utility model, technical scheme and advantage are further described; institute is understood that; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims (7)

1. a high precision plastic cement high definition camera lens, is characterized in that: in the optical system of described camera lens along light from left to right incident direction to be provided with successively focal power be that front group of A and the focal power of bearing is rear group of positive B, between described front group of A and rear group of B, be provided with iris C; The first gummed group that described front group of A connected airtight by the negative selenodont lens A-1 setting gradually and biconcave lens A-2 and biconvex lens A-3 forms, and the second gummed group, lenticular lens B-5 and a protruding flat pattern lens B-6 that described rear group of B connected airtight by the biconvex lens B-1 setting gradually, negative selenodont lens B-2, lenticular lens B-3 and biconcave lens B-4 form.
2. high precision plastic cement high definition camera lens according to claim 1, is characterized in that: the clearance between described front group of A and rear group of B is 2.33 ~ 22.137mm.
3. high precision plastic cement high definition camera lens according to claim 1 and 2, it is characterized in that: the clearance in described front group of A between negative selenodont lens A-1 and the first gummed group is 4.6667mm, and the clearance between described the first gummed group and described iris C is 14.736mm.
4. high precision plastic cement high definition camera lens according to claim 1 and 2, it is characterized in that: the clearance between the biconvex lens B-1 in described iris C and described rear group of B is 7.4mm, clearance between described biconvex lens B-1 and described negative selenodont lens B-2 is 0.19mm, clearance between described negative selenodont lens B-2 and described the second gummed group is 0.15mm, clearance between described the second gummed group and described lenticular lens B-5 is 0.5mm, clearance between described lenticular lens B-5 and a protruding flat pattern lens B-6 is 0.2mm.
5. high precision plastic cement high definition camera lens according to claim 1, it is characterized in that: described camera lens physical construction comprises the focusing runner setting gradually from left to right, the front cover shell that front group of A is installed, the rear casing that rear group of B is installed and CS joint, described CS fitting sleeve is located at rear casing middle part and its right-hand member stretches out rear casing right side, described focusing runner and the socket of plate machine camera lens.
6. high precision plastic cement high definition camera lens according to claim 1, it is characterized in that: described rear casing and described CS joint are folded with vertically and turn to shell fragment, between described front cover shell and rear casing, inner clamps is provided with CD-ROM drive, described front cover shell sidepiece is provided with the front lock-screw for locking described front group of A, and described rear casing sidepiece is provided with the rear lock-screw for locking rear group of B.
7. high precision plastic cement high definition camera lens according to claim 1, is characterized in that: the material of described focusing runner, front cover shell and rear casing is reinforced plastic.
CN201420100264.XU 2014-03-07 2014-03-07 High-precision plastic high-definition lens Expired - Fee Related CN203759340U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420100264.XU CN203759340U (en) 2014-03-07 2014-03-07 High-precision plastic high-definition lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420100264.XU CN203759340U (en) 2014-03-07 2014-03-07 High-precision plastic high-definition lens

Publications (1)

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CN203759340U true CN203759340U (en) 2014-08-06

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103809269A (en) * 2014-03-07 2014-05-21 福建福光数码科技有限公司 High-accuracy plastic high-definition lens
CN104459943B (en) * 2014-12-16 2016-08-24 福建福光股份有限公司 Big target surface high-resolution focuses CS monitoring camera

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103809269A (en) * 2014-03-07 2014-05-21 福建福光数码科技有限公司 High-accuracy plastic high-definition lens
CN104459943B (en) * 2014-12-16 2016-08-24 福建福光股份有限公司 Big target surface high-resolution focuses CS monitoring camera

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: FUJIAN FORECAM CO., LTD.

Free format text: FORMER NAME: FUJIAN FORECAM DIGITAL TECHNOLOGY CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: 158 No. 350015 Fujian province Fuzhou Mawei District Jiangbin East Avenue

Patentee after: FUJIAN FORECAM CO., LTD.

Address before: 158 No. 350015 Fujian province Fuzhou Mawei District Jiangbin East Avenue

Patentee before: Fujian Forecam Optics Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140806

Termination date: 20160307