CN103809269B - High accuracy plastic cement high definition camera lens - Google Patents

High accuracy plastic cement high definition camera lens Download PDF

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Publication number
CN103809269B
CN103809269B CN201410080390.8A CN201410080390A CN103809269B CN 103809269 B CN103809269 B CN 103809269B CN 201410080390 A CN201410080390 A CN 201410080390A CN 103809269 B CN103809269 B CN 103809269B
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China
Prior art keywords
lens
camera lens
plastic cement
air gap
gummed
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CN201410080390.8A
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CN103809269A (en
Inventor
吴志良
肖维军
张世忠
林平
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Fujian Forecam Optics Co Ltd
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Fujian Forecam Optics Co Ltd
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Abstract

The present invention relates to a kind of high accuracy 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. This high accuracy plastic cement high definition camera lens can be converted to trigger interface camera lens CS interface camera lens and not affect imaging effect, and easy installation and removal, use reinforced plastics, tool high strength and coefficient of elasticity, high impact, serviceability temperature scope are wide, electrical characteristic is excellent, improves camera lens yield and rear burnt uniformity.

Description

High accuracy plastic cement high definition camera lens
Technical field
The present invention relates to a kind of high accuracy plastic cement high definition camera lens, belong 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 plastics, and tool high strength and coefficient of elasticity, high impact, serviceability temperature scope are wide, and electrical characteristic 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.
Summary of the invention
In view of this, the object of this invention is to provide one can be converted to trigger interface camera lens CS interface camera lens and not affect imaging effect, and the high accuracy plastic cement high definition camera lens of easy installation and removal.
The present invention adopts following scheme to realize: a kind of high accuracy 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 air gap between described front group of A and rear group of B is 2.33 ~ 22.137mm.
Further, the air gap in described front group of A between negative selenodont lens A-1 and the first gummed group is 4.6667mm, and the air gap between described the first gummed group and described iris C is 14.736mm.
Further, the air gap between biconvex lens B-1 in described iris C and described rear group of B is 7.4mm, the air gap between described biconvex lens B-1 and described negative selenodont lens B-2 is 0.19mm, the air gap between described negative selenodont lens B-2 and described the second gummed group is 0.15mm, the air gap between described the second gummed group and described lenticular lens B-5 is 0.5mm, and the air gap 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 plastics.
Compared with prior art, the present invention 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 indications 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 ratio 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 aberrational 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 plastics, and tool high strength and coefficient of elasticity, high impact, serviceability temperature scope are wide, and electrical characteristic 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 embodiment of the present invention;
Fig. 2 is the frame for movement schematic diagram of the embodiment of the present invention;
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-.
Detailed description of the invention
For making object of the present invention, technical scheme and advantage clearer, below will, by specific embodiment and relevant drawings, the present invention be described in further detail.
As shown in Figure 1, a kind of high accuracy 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 aberrational 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 aberrational 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 ratio of camera lens high, can adapt to the requirement of 2,000,000 pixel high definition video shootings.
In the present embodiment, the air gap between described front group of A and rear group of B is 22.137mm.
In the present embodiment, the air gap in described front group of A between negative selenodont lens A-1 and the first gummed group is 4.6667mm, and the air gap between described the first gummed group and described iris C is 14.736mm.
In the present embodiment, the air gap between biconvex lens B-1 in described iris C and described rear group of B is 7.4mm, the air gap between described biconvex lens B-1 and described negative selenodont lens B-2 is 0.19mm, the air gap between described negative selenodont lens B-2 and described the second gummed group is 0.15mm, the air gap between described the second gummed group and described lenticular lens B-5 is 0.5mm, and the air gap 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) angle of visual field 2 ω: 132 °~35.5 ° (effectively imaging surface n ' >=φ 6.72mm);
(4) be suitable for spectral region: 480nm~850nm;
(5) resolution ratio: 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 plastics, tool high strength and coefficient of elasticity, high impact, serviceability temperature scope are wide, electrical characteristic is excellent, easily moulded and made, realize camera lens batch production, high conformity, raising camera lens yield and rear burnt uniformity.
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 object, technical solutions and advantages of the present invention are further described; institute is understood that; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention; within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (7)

1. a high accuracy 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 accuracy plastic cement high definition camera lens according to claim 1, is characterized in that: the air gap between described front group of A and rear group of B is 2.33 ~ 22.137mm.
3. high accuracy plastic cement high definition camera lens according to claim 1 and 2, it is characterized in that: the air gap in described front group of A between negative selenodont lens A-1 and the first gummed group is 4.6667mm, and the air gap between described the first gummed group and described iris C is 14.736mm.
4. high accuracy plastic cement high definition camera lens according to claim 1 and 2, it is characterized in that: the air gap between the biconvex lens B-1 in described iris C and described rear group of B is 7.4mm, the air gap between described biconvex lens B-1 and described negative selenodont lens B-2 is 0.19mm, the air gap between described negative selenodont lens B-2 and described the second gummed group is 0.15mm, the air gap between described the second gummed group and described lenticular lens B-5 is 0.5mm, the air gap between described lenticular lens B-5 and a protruding flat pattern lens B-6 is 0.2mm.
5. high accuracy plastic cement high definition camera lens according to claim 1, it is characterized in that: described camera lens frame for movement 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 accuracy plastic cement high definition camera lens according to claim 5, 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 accuracy plastic cement high definition camera lens according to claim 6, is characterized in that: the material of described focusing runner, front cover shell and rear casing is reinforced plastics.
CN201410080390.8A 2014-03-07 2014-03-07 High accuracy plastic cement high definition camera lens Active CN103809269B (en)

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Application Number Priority Date Filing Date Title
CN201410080390.8A CN103809269B (en) 2014-03-07 2014-03-07 High accuracy plastic cement high definition camera lens

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Application Number Priority Date Filing Date Title
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CN103809269B true CN103809269B (en) 2016-05-25

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Publication number Priority date Publication date Assignee Title
CN105259646B (en) * 2015-11-06 2017-12-22 福建福光股份有限公司 2.8 8mm miniature zoom lens

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JP2009300796A (en) * 2008-06-13 2009-12-24 Fujinon Corp Imaging lens and capsule type endoscope
CN101825763A (en) * 2009-12-31 2010-09-08 福建福光数码科技有限公司 High resolution day and night multipoint zoom lens
JP2013238684A (en) * 2012-05-14 2013-11-28 Tamron Co Ltd Fisheye lens
CN103116213B (en) * 2013-02-20 2016-03-30 福建福光股份有限公司 Three mega pixels are confocal trigger camera lens day and night
CN203759340U (en) * 2014-03-07 2014-08-06 福建福光数码科技有限公司 High-precision plastic high-definition lens

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Free format text: CORRECT: APPLICANT; FROM: FUJIAN FORECAM DIGITAL TECHNOLOGY CO., LTD. TO: FUJIAN FORECAM CO., LTD.

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

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Applicant before: Fujian Forecam Optics Co., Ltd.

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