CN203250060U - Three-mega-pixel day and night P-iris lens - Google Patents
Three-mega-pixel day and night P-iris lens Download PDFInfo
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- CN203250060U CN203250060U CN 201320078065 CN201320078065U CN203250060U CN 203250060 U CN203250060 U CN 203250060U CN 201320078065 CN201320078065 CN 201320078065 CN 201320078065 U CN201320078065 U CN 201320078065U CN 203250060 U CN203250060 U CN 203250060U
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Abstract
The utility model relates to a three-mega-pixel day and night P-iris lens. The three-mega-pixel day and night P-iris lens is characterized in that a front set A of which the focal power is negative and a back set B of which the focal power is positive, are arranged separately along a light incident direction from left to right, and the front set A is formed by tightly connecting and bonding a negative meniscus lens A-1, a double concave lens A-2, and a double convex lens A-3. The three-mega-pixel day and night P-iris lens of the utility model is based on a P-IRIS CD driver, and controls an aperture automatically and accurately, thereby obtaining an image having better contrast, definition, resolution and depth of field.
Description
Technical field:
The utility model relates to a kind of three mega pixel day and night P-iris camera lenses.
Background technology:
In monitoring trade, the optional type of lens aperture control of video camera is divided into fixing, manual and automatic three kinds.
The camera lens of fixed aperture can not be regulated diaphragm hole; For the manual iris camera lens, diaphragm hole is manual adjustments; Both are suitable for the constant position of light luminance, need not ceaselessly to regulate logical light quantity.For automatic diaphragm lens, no matter be DC aperture or video aperture, all can automatically regulate diaphragm hole according to the variation of light luminance; Be suitable for light luminance variation situation greatly, such as the outdoor pick-up machine.DC aperture camera lens just changes according to light luminance, does not consider that diaphragm hole is on the impact of other image quality factors (such as the depth of field).Use DC aperture camera lens, video camera is only known for light luminance and is opened or closed aperture; DC aperture camera lens can not offer video camera about the information of aperture position.Do not have this information, video camera just can not be controlled diaphragm hole effectively with the optimized image quality.
Summary of the invention:
The purpose of this utility model is to provide a kind of three mega pixel day and night P-iris camera lenses, the image that this three mega pixels day and night P-iris camera lens has better contrast, sharpness, resolution and the depth of field.
The technical solution of the utility model:
The utility model three mega pixel day and night P-iris camera lenses is characterized in that: along light from left to right incident direction focal power is set respectively is rear group of positive B for negative front group of A and focal power; Described front group of A is made of the first gummed group that the first negative selenodont lens A-1, biconcave lens A-2 and the first biconvex lens A-3 connect airtight, and the 3rd gummed group that the second gummed group that described rear group of B connected airtight by the second biconvex lens B-1, the second negative selenodont lens B-2, the 3rd negative selenodont lens B-3 and the 3rd biconvex lens B-4, the 4th negative selenodont lens B-5, the 4th biconvex lens B-6 and the 5th negative selenodont lens B-7 connect airtight consists of; Airspace between described front group of A and the rear group of B is 23.236mm, airspace in described front group between the first negative selenodont lens A-1 and the balsaming lens group is 6.167mm, airspace in described front group between balsaming lens group and the light hurdle C is 5.357mm, airspace among the described rear group of B between light hurdle C and the second biconvex lens B-1 is 10.319mm, airspace between the second biconvex lens B-1 and the second negative selenodont lens B-2 is 2.517mm, airspace between the second negative selenodont lens B-2 and the balsaming lens group is 0.680mm, airspace between balsaming lens group and the 4th negative selenodont lens B-5 is 1.510mm, and the airspace between the 4th negative selenodont lens B-5 and the balsaming lens group is 1.277mm.
The above-mentioned light hurdle C that arranges between front group of A and rear group of B is iris.
Above-mentioned front group of A and rear group of B all are arranged in the body tube.
Be provided with the first spacer ring 2 between the above-mentioned second negative selenodont lens B-2 and the 3rd negative selenodont lens B-3; Be provided with the second spacer ring 3 between the 3rd biconvex lens B-4 and the 4th negative selenodont lens B-5.
Above-mentioned the second spacer ring 3 and the first spacer ring 2 are the step spacer ring.
Above-mentionedBe provided with trim ring 4 in the first negative selenodont lens A-1 left side.
The camera lens that above-mentioned lens set consists of reaches following parameter: focal length: f '=3.3-10.5mm, relative aperture D/F=1/1.4, field angle 2 ω: 132 °～38 °, effective imaging surface n ' 〉=φ 7.18mm, applicable spectral range: 480nm～850nm, resolution: adaptive with the high-definition camera of 3,000,000 pixels, light path overall length ∑ L≤47.95mm.
Above-mentioned body tube rear end is provided with Connection Block, at the inner limited block that increases by a projection of Connection Block, the transition piece inside that is provided with at the body tube rear portion also increases by a projection, with the scope that guarantees that Connection Block is regulated, turn to the adjustment pad what the body tube rear surface increased 0.2mm in addition, fix with three sunk screws.
Advantage of the present utility model:
1. the utility model three mega pixel day and night P-iris camera lenses adopt the P-IRIS CD-ROM drive, by automatically, accurately controlling diaphragm hole, thus the image that obtains having better contrast, sharpness, resolution and the depth of field.
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 the cemented doublet group, make camera lens reach object lens of large relative aperture, wide-angle, the short performance index of structure length.
3. by the optical glass material of forward and backward two groups ten seven groups of reasonable selections, select the optical glass material of high index of refraction, low dispersion as far as possible.By area of computer aided optical design and optimization, proofreaied and correct the various aberrations of optical lens perfectly, make the resolution of camera lens high, can adapt to the requirement of 3,000,000 pixel high definition videos shooting.
4. 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, and 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 by infrared light filling under the environment of night utmost point low-light (level) or zero illumination, realized 24 hours continuous monitorings, and partially burnt when day and night switching, need not on-the-spot the focusing.
Description of drawings:
Fig. 1 is existing light path principle figure;
Fig. 2 is light path principle figure of the present utility model;
Fig. 3 is organigram of the present utility model.
Embodiment:
The utility model three mega pixel day and night P-iris camera lenses, along light from left to right incident direction focal power is set respectively is rear group of positive B for negative front group of A and focal power; Described front group of A is made of the first gummed group that the first negative selenodont lens A-1, biconcave lens A-2 and the first biconvex lens A-3 connect airtight, and the 3rd gummed group that the second gummed group that described rear group of B connected airtight by the second biconvex lens B-1, the second negative selenodont lens B-2, the 3rd negative selenodont lens B-3 and the 3rd biconvex lens B-4, the 4th negative selenodont lens B-5, the 4th biconvex lens B-6 and the 5th negative selenodont lens B-7 connect airtight consists of; Airspace between described front group of A and the rear group of B is 23.236mm, airspace in described front group between the first negative selenodont lens A-1 and the balsaming lens group is 6.167mm, airspace in described front group between balsaming lens group and the light hurdle C is 5.357mm, airspace among the described rear group of B between light hurdle C and the second biconvex lens B-1 is 10.319mm, airspace between the second biconvex lens B-1 and the second negative selenodont lens B-2 is 2.517mm, airspace between the second negative selenodont lens B-2 and the balsaming lens group is 0.680mm, airspace between balsaming lens group and the 4th negative selenodont lens B-5 is 1.510mm, and the airspace between the 4th negative selenodont lens B-5 and the balsaming lens group is 1.277mm.
The above-mentioned light hurdle C that arranges between front group of A and rear group of B is iris.
Because the resolution of this camera lens is very high, and the resolution of visual field, edge and central market do not allow very large difference, thus in structural design, to guarantee the actions such as the concentricity of each constituent element of system and focusing accurately, steady and good hand touch.
Above-mentioned front group of A and rear group of B all are arranged in the body tube 1, and body tube is the right alignment of having guaranteed whole light path of producing at same board; Make the off-axis aberration of optical lens reach designing requirement.
For fixing len and guarantee airspace between each eyeglass, be provided with the first spacer ring 2 between the above-mentioned second negative selenodont lens B-2 and the 3rd negative selenodont lens B-3; Be provided with the second spacer ring 3 between the 3rd biconvex lens B-4 and the 4th negative selenodont lens B-5, this spacer ring has guaranteed the airspace between B-3, B-4 glue pellet and the B-5 sheet.
Above-mentioned spacer ring 3 and spacer ring 2 are the step spacer ring, and this spacer ring is made not only having saved material but also can better having played the effect of interception parasitic light of step.
Above-mentionedly be provided with trim ring 4 in the first negative selenodont lens A-1 left side.Trim ring 4 is fixed whole arrangement of mirrors sheet, prevents that eyeglass is loosening or drops out, but make simultaneously the absorption edge parasitic light of step.
The camera lens that above-mentioned lens set consists of reaches following parameter: focal length: f '=3.3-10.5mm, relative aperture D/F=1/1.4, field angle 2 ω: 132 °～38 °, effective imaging surface n ' 〉=φ 7.18mm, applicable spectral range: 480nm～850nm, resolution: adaptive with the high-definition camera of 3,000,000 pixels, light path overall length ∑ L≤47.95mm.
The light path of the utility model camera lens is relatively more responsive on the impact of parasitic light, respectively fixing spacer ring 2,3 inwall 5 have been done the delustring line for this problem and processed, thereby the area that has increased the reception parasitic light reduces the impact of parasitic light.
For improving the cooperation of camera lens and video camera, non-360-degree rotation when guaranteeing Connection Block 23 rotation, above-mentioned body tube rear end is provided with Connection Block 6, at the inner limited block that increases by a projection of Connection Block, transition piece 7 inside that are provided with at the body tube rear portion also increase by a projection, with the scope that guarantees that Connection Block is regulated, increase turning to of 0.2mm at the body tube rear surface in addition and adjust pad 8, fix with three sunk screws.
Advantage of the present utility model:
1. the utility model three mega pixel day and night P-iris camera lenses adopt the P-IRIS CD-ROM drive, by automatically, accurately controlling diaphragm hole, thus the image that obtains having better contrast, sharpness, resolution and the depth of field.In brief, P-iris means better image sharpness and to the network video monitoring operator and the image availability of Yan Genggao.
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 the cemented doublet group, make camera lens reach object lens of large relative aperture, wide-angle, the short performance index of structure length.
3. by the optical glass material of forward and backward two groups ten seven groups of reasonable selections, select the optical glass material of high index of refraction, low dispersion as far as possible.By area of computer aided optical design and optimization, proofreaied and correct the various aberrations of optical lens perfectly, make the resolution of camera lens high, can adapt to the requirement of 3,000,000 pixel high definition videos shooting.
4. 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, and 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 by infrared light filling under the environment of night utmost point low-light (level) or zero illumination, realized 24 hours continuous monitorings, and partially burnt when day and night switching, need not on-the-spot the focusing.
The light path of the utility model camera lens is the optical texture of retrofocus type.It is that rear group of positive B consists of by focal power for negative front group of A and focal power; Front group of A is made of two negative selenodont lens, and rear group of B changes the 3rd eyeglass into the cemented doublet group on the prototype of three-chip type Ke Ke type structure, to share rear group focal power, be beneficial to and improve the camera lens relative aperture, be beneficial to the aberration correction of camera lens, the correction of especially wide spectrum aberration.
Claims (8)
1. mega pixel day and night P-iris camera lens is characterized in that: along light from left to right incident direction focal power is set respectively is rear group positive (B) for negative front group (A) and focal power; Described front group (A) is made of the first gummed group that the first negative selenodont lens (A-1), biconcave lens (A-2) and the first biconvex lens (A-3) connect airtight, and the 3rd gummed group that the second gummed group that described rear group (B) connected airtight by the second biconvex lens (B-1), the second negative selenodont lens (B-2), the 3rd negative selenodont lens (B-3) and the 3rd biconvex lens (B-4), the 4th negative selenodont lens (B-5), the 4th biconvex lens (B-6) and the 5th negative selenodont lens (B-7) connect airtight consists of; Airspace between described front group (A) and rear group (B) is 23.236mm, airspace in described front group between the first negative selenodont lens (A-1) and the balsaming lens group is 6.167mm, airspace in described front group between balsaming lens group and light hurdle (C) is 5.357mm, airspace between described rear group of (B) Zhong Guanglan (C) and the second biconvex lens (B-1) is 10.319mm, airspace between the second biconvex lens (B-1) and the second negative selenodont lens (B-2) is 2.517mm, airspace between the second negative selenodont lens (B-2) and the balsaming lens group is 0.680mm, airspace between balsaming lens group and the 4th negative selenodont lens (B-5) is 1.510mm, and the airspace between the 4th negative selenodont lens (B-5) and the balsaming lens group is 1.277mm.
2. three mega pixel day and night P-iris camera lenses according to claim 1 is characterized in that: the light hurdle (C) that arranges between front group (A) and rear group (B) is iris.
3. three mega pixel day and night P-iris camera lenses according to claim 1 and 2, it is characterized in that: described front group (A) and rear group (B) all are arranged in the body tube.
4. three mega pixel day and night P-iris camera lenses according to claim 3 is characterized in that: be provided with the first spacer ring (2) between the described second negative selenodont lens (B-2) and the 3rd negative selenodont lens (B-3); Be provided with the second spacer ring (3) between the 3rd biconvex lens (B-4) and the 4th negative selenodont lens (B-5).
5. three mega pixel day and night P-iris camera lenses according to claim 4, it is characterized in that: described the second spacer ring (3) and the first spacer ring (2) are the step spacer ring.
6. three mega pixel day and night P-iris camera lenses according to claim 5 is characterized in that: be provided with trim ring (4) in the first negative selenodont lens (A-1) left side.
7. according to claim 1,2,4,5 or 6 described three mega pixel day and night P-iris camera lenses, it is characterized in that: the camera lens of formation reaches following parameter: focal length: f '=3.3-10.5mm, relative aperture D/F=1/1.4, field angle 2 ω: 132 °～38 °, effective imaging surface n ' 〉=φ 7.18mm, applicable spectral range: 480nm～850nm, resolution: adaptive with the high-definition camera of 3,000,000 pixels, light path overall length ∑ L≤47.95mm.
8. three mega pixel day and night P-iris camera lenses according to claim 3, it is characterized in that: described body tube rear end is provided with Connection Block, at the inner limited block that increases by a projection of Connection Block, the transition piece inside that is provided with at the body tube rear portion also increases by a projection, with the scope that guarantees that Connection Block is regulated, turn to the adjustment pad what the body tube rear surface increased 0.2mm in addition, fix with three sunk screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320078065 CN203250060U (en) | 2013-02-20 | 2013-02-20 | Three-mega-pixel day and night P-iris lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320078065 CN203250060U (en) | 2013-02-20 | 2013-02-20 | Three-mega-pixel day and night P-iris lens |
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| Publication Number | Publication Date |
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| CN203250060U true CN203250060U (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320078065 Withdrawn - After Issue CN203250060U (en) | 2013-02-20 | 2013-02-20 | Three-mega-pixel day and night P-iris lens |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176263A (en) * | 2013-02-20 | 2013-06-26 | 福建福光数码科技有限公司 | Day and night P-iris lens with three million pixels |
| CN104714354A (en) * | 2014-10-30 | 2015-06-17 | 启芯瑞华科技（武汉）有限公司 | Diaphragm structure and image processing method thereof |
| CN105158879A (en) * | 2015-10-08 | 2015-12-16 | 福建福光股份有限公司 | Wide-angle high-definition day-and-night light path structure and micro pick-up lens unit |
| CN106772898A (en) * | 2016-12-16 | 2017-05-31 | 福建福光天瞳光学有限公司 | Dexterous type hand-adjusting type LONG WAVE INFRARED optics is without thermalization thermometric camera lens |
| CN114911041A (en) * | 2022-04-29 | 2022-08-16 | 福建福光股份有限公司 | High resolution objective for gun sights |
-
2013
- 2013-02-20 CN CN 201320078065 patent/CN203250060U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176263A (en) * | 2013-02-20 | 2013-06-26 | 福建福光数码科技有限公司 | Day and night P-iris lens with three million pixels |
| CN103176263B (en) * | 2013-02-20 | 2015-10-28 | 福建福光股份有限公司 | Three mega pixel day and night P-iris camera lenses |
| CN104714354A (en) * | 2014-10-30 | 2015-06-17 | 启芯瑞华科技（武汉）有限公司 | Diaphragm structure and image processing method thereof |
| CN104714354B (en) * | 2014-10-30 | 2017-08-22 | 启芯瑞华科技（武汉）有限公司 | A kind of iris diaphragm structure and its image processing method |
| CN105158879A (en) * | 2015-10-08 | 2015-12-16 | 福建福光股份有限公司 | Wide-angle high-definition day-and-night light path structure and micro pick-up lens unit |
| CN106772898A (en) * | 2016-12-16 | 2017-05-31 | 福建福光天瞳光学有限公司 | Dexterous type hand-adjusting type LONG WAVE INFRARED optics is without thermalization thermometric camera lens |
| CN106772898B (en) * | 2016-12-16 | 2024-01-12 | 福建福光天瞳光学有限公司 | Flexible manual-adjusting type long-wave infrared optical athermalized temperature measuring lens |
| CN114911041A (en) * | 2022-04-29 | 2022-08-16 | 福建福光股份有限公司 | High resolution objective for gun sights |
| CN114911041B (en) * | 2022-04-29 | 2023-08-11 | 福建福光股份有限公司 | High resolution objective for gun sight |
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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. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20131023 Effective date of abandoning: 20151028 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |