CN204855923U - Dual -purpose economic money camera lens of high resolution day night - Google Patents

Dual -purpose economic money camera lens of high resolution day night Download PDF

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Publication number
CN204855923U
CN204855923U CN201520511195.6U CN201520511195U CN204855923U CN 204855923 U CN204855923 U CN 204855923U CN 201520511195 U CN201520511195 U CN 201520511195U CN 204855923 U CN204855923 U CN 204855923U
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China
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lens
arrangement
night
negative
camera
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CN201520511195.6U
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Chinese (zh)
Inventor
潘俊达
王烨
朱艳文
苏青年
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Fujian Forecam Optics Co Ltd
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Fujian Forecam Optics Co Ltd
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Abstract

The utility model relates to a dual -purpose economic money camera lens of high resolution day night, be equipped with in proper order along light from left hand right side incident direction among the optical system of camera lens the focal power before for the lens group of burden the A of group and focal power organize B after organizing for positive lens, the preceding A of group organizes after and is provided with the two filter C of IR -CUT between the B, the A of preceding group includes veneer group, a burden moon tooth form lens A -3 that the burden month tooth form lens A -1 that sets gradually from the left hand right side and biconcave type lens A -2 connect airtight, after organize B and include lenticular lens B -1, a burden month tooth form lens B -2, the lenticular lens B -3 who sets gradually from the left hand right side, this dual -purpose economic money camera lens of high resolution day night optical index is high, the optics target surface is big, resolution ratio is higher than 5, 000, 000 pixels, can be with 16: 9 12.7 " fine definition's of standard supporting use of camera makes the camera system can realize the requirement of making a video recording to scenery at the fine definition of highlight dynamic change scope environment, and almost not distortion.

Description

The economic money camera lens of high resolution day and night
Technical field
The utility model relates to the economic money camera lens in the optical pick-up apparatus field of video technique, particularly a kind of high resolution day and night.
Background technology
The fast development of science and technology, the raising gradually of people's awareness of safety, promote the continuous progress in security protection market.Technology of video compressing encoding now along with advanced person is constantly ripe, the develop rapidly of IP-based Internet Transmission and the application of Digital Zoom technology, market has been proposed the high-definition camera of a series of 3,000,000, five mega pixels.But in the process of Internet Transmission and Digital Zoom, the sharpness (i.e. resolution) of video has decline to a certain degree, and meanwhile, the requirement of people to image analytic degree is more and more higher, therefore just has higher requirement to the resolution of camera lens foremost.Early stage tight shot structure is simple, performance index are low, can only be adaptive with the SD CCD of 20 ~ 300,000 pixels or cmos camera in the sharpness of image, and shooting effect is general, and picture is worth little, can only adapt to the needs that monitoring field " is seen ".Such resolution can not meet the requirement of present high-definition camera far away.
Utility model content
The purpose of this utility model is for above weak point, provide that a kind of optical index is high, optics target surface be large, resolution higher than five mega pixels, can " video camera of high definition supports the use, camera system can realize scenery at the requirement of the high definition pick-up of high photokinesis variation range environment, the economic money camera lens of high resolution day and night that almost do not distort with 16:9 standard 1/2.7.
The technical solution of the utility model is, the economic money camera lens of a kind of high resolution day and night, in the optical system of described camera lens, along light, incident direction is provided with focal power successively is from left to right that to organize A and focal power before negative lens set be organize B after positive lens set, be provided with the two filter C of IR-CUT between described front group of A and rear group of B, before described, group A comprises the gummed group of negative selenodont lens A-1 and the double concave type lens A-2 contiguity set gradually from left to right, negative selenodont lens A-3; Described rear group of B comprises the lenticular lens B-1 set gradually from left to right, negative selenodont lens B-2, lenticular lens B-3.
Further, bearing airspace between selenodont lens A-1 and double concave type lens A-2 gummed group in group A before described is 0.6983mm, airspace between the gummed group that before described, in group A, negative selenodont lens A-1 and double concave type lens A-2 touches and negative selenodont lens A-3 is 1.0686mm, airspace in described rear group of B between lenticular lens B-1 and negative selenodont lens B-2 is 0.5455mm, and in described rear group of B, negative airspace between selenodont lens B-2 and lenticular lens B-3 is 0.1188mm.
Further, the physical construction of described camera lens comprises front arrangement of mirrors cylinder, rear arrangement of mirrors cylinder, and the premenstrual microscope base of described front arrangement of mirrors tube inner chamber is provided with group A before lens set, described rear arrangement of mirrors tube inner chamber through after microscope base lens set is installed after organize B.
Further, the left side of described front microscope base is fixed with the gummed group of negative selenodont lens A-1 and double concave type lens A-2 contiguity, and right side is fixed with negative selenodont lens A-3, is provided with spacer ring BC between described negative selenodont lens A-3 and double concave type lens A-2.
Further, the left side of described rear microscope base is fixed with lenticular lens B-1, right side is fixed with negative selenodont lens B-2, lenticular lens B-3, on rear microscope base, be provided with boss between described lenticular lens B-1 and negative selenodont lens B-2, between described negative selenodont lens B-2 and lenticular lens B-3, be provided with spacer ring EF.
Further, the outer circumferential side of described front arrangement of mirrors cylinder is provided with the front cam for realizing zoom, and the outer circumferential side of described rear arrangement of mirrors cylinder is provided with the rear cam for realizing zoom, and described front cam and rear cam are provided with locking nail.
Further, the two optical-filter switcher of IR-CUT for realizing night vision function is also provided with between described front arrangement of mirrors cylinder and rear arrangement of mirrors cylinder.
Compared with prior art, the utility model has following beneficial effect: the reasonable distribution focal power of front group of A and rear group of B in optical system of the present utility model, in front group of A, first, second eyeglass are changed into cemented doublet group, makes camera lens reach the short performance index of object lens of large relative aperture, wide-angle, structure length; This kind of camera lens adopts front group of A, rear group of B to move to realize focusing function, has had certain novelty relative to common lens in the past on light channel structure; By organizing the optical glass material of in A, rear group of B six five groups before reasonable selection, 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, correct the various aberrations of optical lens perfectly, make the mtf value of camera lens at 150lp/mm, make the resolution of camera lens high, the requirement of 3,000,000 pixel high definition video shootings can be adapted to; The distortion of this system is less, and below 1%, the distortion of common lens all can be larger, and this system has had better control relative to old structural aberration; The asterism figure of this system is also more satisfactory, and all within 3.5 um, energy comparison is concentrated, and reaches high-resolution requirement; This system is by design optimization, and close-shot is apart from reaching 0.3m, and can realize blur-free imaging in nearer object distance relative to common telephoto lens, this is also a large advantage of industrial lens; When structural design, both the accurate of the concentricity of camera lens, precision and axial location had been ensured, make again the compact conformation of camera lens, attractive in appearance as far as possible, consider again the practicality of camera lens, devise different spacer rings simultaneously and fix eyeglass, ensure the airspace between eyeglass, thus reach the high picture element of camera lens, low distortion.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model patent is further illustrated.
Fig. 1 is the optical system schematic diagram of this utility model;
Fig. 2 is the physical construction schematic diagram of this utility model;
In figure:
Group A before A-; B is organized after B-; A-1 bears selenodont lens A-1; A-2 double concave type lens A-2; A-3 bears selenodont lens A-3; The two filter C of C-IR-CUT; B-1 lenticular lens B-1; B-2 bears selenodont lens B-2; B-3 lenticular lens B-3; Arrangement of mirrors cylinder before 1-; Arrangement of mirrors cylinder after 2-; Microscope base before 3-; Microscope base after 4-; 5-spacer ring BC; 6-boss; 7-spacer ring EF; 8-front cam; Cam after 9-; 10-locking nail; The two optical-filter switcher of 11-IR-CUT.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
As shown in Fig. 1 ~ 2, the economic money camera lens of a kind of high resolution day and night, in the optical system of described camera lens, along light, incident direction is provided with focal power successively is from left to right that to organize A and focal power before negative lens set be organize B after positive lens set, be provided with the two filter C of IR-CUT between described front group of A and rear group of B, before described, group A comprises the gummed group of negative selenodont lens A-1 and the double concave type lens A-2 contiguity set gradually from left to right, negative selenodont lens A-3; Described rear group of B comprises the lenticular lens B-1 set gradually from left to right, negative selenodont lens B-2, lenticular lens B-3.
In the present embodiment, bearing airspace between selenodont lens A-1 and double concave type lens A-2 gummed group in group A before described is 0.6983mm, airspace between the gummed group that before described, in group A, negative selenodont lens A-1 and double concave type lens A-2 touches and negative selenodont lens A-3 is 1.0686mm, airspace in described rear group of B between lenticular lens B-1 and negative selenodont lens B-2 is 0.5455mm, and in described rear group of B, negative airspace between selenodont lens B-2 and lenticular lens B-3 is 0.1188mm.
In the present embodiment, the physical construction of described camera lens comprises front arrangement of mirrors cylinder 1, rear arrangement of mirrors cylinder 2, and the premenstrual microscope base 3 of described front arrangement of mirrors cylinder 1 inner chamber is provided with group A before lens set, described rear arrangement of mirrors cylinder 2 inner chamber through after microscope base 4 lens set is installed after organize B.
In the present embodiment, use low pressure gas to suppress during assembling eyeglass, front microscope base, rear microscope base stay and melt surplus, melt after pressing out, prevent eyeglass from loosening.
In the present embodiment, the left side of described front microscope base 3 is fixed with the gummed group of negative selenodont lens A-1 and double concave type lens A-2 contiguity, right side is fixed with negative selenodont lens A-3, spacer ring BC(5 is provided with) between described negative selenodont lens A-3 and double concave type lens A-2, while ensureing the airspace between each eyeglass, also effectively can stop parasitic light, eliminate its impact on lens imaging quality.
In the present embodiment, the left side of described rear microscope base 4 is fixed with lenticular lens B-1, right side is fixed with negative selenodont lens B-2, lenticular lens B-3, on rear microscope base, be provided with boss 6 between described lenticular lens B-1 and negative selenodont lens B-2, between described negative selenodont lens B-2 and lenticular lens B-3, be provided with spacer ring EF(7).
In the present embodiment, the left and right of rear microscope base 4 all can be assembled, boss 6 also effectively can stop parasitic light, spacer ring EF(7 while ensureing the airspace between eyeglass) for step-like, while making spacer ring EF stop parasitic light, also ensure that the intensity of part as much as possible.
In the present embodiment, the outer circumferential side of described front arrangement of mirrors cylinder 1 is provided with the front cam 8 for realizing zoom, and the outer circumferential side of described rear arrangement of mirrors cylinder 2 is provided with the rear cam 9 for realizing zoom, and described front cam and rear cam are provided with locking nail 10.
In the present embodiment, the two optical-filter switcher 11 of IR-CUT for realizing night vision function is also provided with between described front arrangement of mirrors cylinder and rear arrangement of mirrors cylinder, when the two optical-filter switcher of IR-CUT is bright and clear by day, cutoff filter works, and restores true color, when insufficient light at night, cutoff filter is removed, full impregnated spectral filter is started working, and makes full use of all light, thus realizes night vision function.
In the present embodiment, because spheric glass has the bad phenomenon such as aberration and distortion are comparatively large, image is unclear, visual field is distorted, the visual field is narrow and small, the utility model adopts the design of aspherical lens, have modified image, solve the problems such as visual field distortion, at eyeglass gentlier, thinner, more flat while still keep excellent shock resistance.
In the present embodiment, the optical system be made up of above-mentioned lens set reaches following optical index:
1. focal length: f '=2.8 ~ 8mm;
2. relative aperture D/f '=1/1.4;
3. horizontal view angle: 100 ° ~ 30 °;
4. resolution: be better than 3,000,000 pixels;
5. light path overall length ∑≤50.1mm;
6. be suitable for spectral line scope: 400nm ~ 700nm.
In the present embodiment, when focusing, rotate front cam, before front microscope base in front arrangement of mirrors tube inner chamber drives in the scope of specifying, group A is along axis rectilinear motion, cam after rotating, organizes B along axis rectilinear motion, when front cam, rear cam adjustment are to the position of imaging clearly before the rear microscope base in rear arrangement of mirrors tube inner chamber drives in the scope of specifying, locking nail is locked, the relative position of fixing front microscope base, rear microscope base.
Above-listed preferred embodiment; the purpose of this utility model, technical scheme and advantage are further described; be 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 done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims (7)

1. the economic money camera lens of high resolution day and night, it is characterized in that: in the optical system of described camera lens, along light, incident direction is provided with focal power successively is from left to right that to organize A and focal power before negative lens set be organize B after positive lens set, be provided with the two filter C of IR-CUT between described front group of A and rear group of B, before described, group A comprises the gummed group of negative selenodont lens A-1 and the double concave type lens A-2 contiguity set gradually from left to right, negative selenodont lens A-3; Described rear group of B comprises the lenticular lens B-1 set gradually from left to right, negative selenodont lens B-2, lenticular lens B-3.
2. the economic money camera lens of high resolution day and night according to claim 1, it is characterized in that: bearing airspace between selenodont lens A-1 and double concave type lens A-2 gummed group in group A before described is 0.6983mm, airspace between the gummed group that before described, in group A, negative selenodont lens A-1 and double concave type lens A-2 touches and negative selenodont lens A-3 is 1.0686mm, airspace in described rear group of B between lenticular lens B-1 and negative selenodont lens B-2 is 0.5455mm, in described rear group of B, negative airspace between selenodont lens B-2 and lenticular lens B-3 is 0.1188mm.
3. the economic money camera lens of high resolution day and night according to claim 2, it is characterized in that: the physical construction of described camera lens comprises front arrangement of mirrors cylinder, rear arrangement of mirrors cylinder, the premenstrual microscope base of described front arrangement of mirrors tube inner chamber is provided with group A before lens set, described rear arrangement of mirrors tube inner chamber through after microscope base lens set is installed after organize B.
4. the economic money camera lens of high resolution day and night according to claim 3, it is characterized in that: the left side of described front microscope base is fixed with the gummed group of negative selenodont lens A-1 and double concave type lens A-2 contiguity, right side is fixed with negative selenodont lens A-3, is provided with spacer ring BC between described negative selenodont lens A-3 and double concave type lens A-2.
5. the economic money camera lens of high resolution day and night according to claim 3, it is characterized in that: the left side of described rear microscope base is fixed with lenticular lens B-1, right side is fixed with negative selenodont lens B-2, lenticular lens B-3, on rear microscope base, be provided with boss between described lenticular lens B-1 and negative selenodont lens B-2, between described negative selenodont lens B-2 and lenticular lens B-3, be provided with spacer ring EF.
6. the economic money camera lens of high resolution day and night according to claim 3, it is characterized in that: the outer circumferential side of described front arrangement of mirrors cylinder is provided with the front cam for realizing zoom, the outer circumferential side of described rear arrangement of mirrors cylinder is provided with the rear cam for realizing zoom, and described front cam and rear cam are provided with locking nail.
7. the economic money camera lens of high resolution day and night according to claim 3, is characterized in that: be also provided with the two optical-filter switcher of IR-CUT for realizing night vision function between described front arrangement of mirrors cylinder and rear arrangement of mirrors cylinder.
CN201520511195.6U 2015-07-15 2015-07-15 Dual -purpose economic money camera lens of high resolution day night Active CN204855923U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104965296A (en) * 2015-07-15 2015-10-07 福建福光股份有限公司 High-resolution day-and-night dual-use economical lens and focusing method thereof
CN106154481A (en) * 2016-08-26 2016-11-23 福建福光股份有限公司 A kind of mould camera lens and assembly technology thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104965296A (en) * 2015-07-15 2015-10-07 福建福光股份有限公司 High-resolution day-and-night dual-use economical lens and focusing method thereof
CN104965296B (en) * 2015-07-15 2018-01-12 福建福光股份有限公司 The focus adjustment method of the economic money camera lens of high resolution day and night
CN106154481A (en) * 2016-08-26 2016-11-23 福建福光股份有限公司 A kind of mould camera lens and assembly technology thereof

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