CN205027957U - Dual -purpose miniature camera lens of wide angle high definition day night - Google Patents
Dual -purpose miniature camera lens of wide angle high definition day night Download PDFInfo
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- CN205027957U CN205027957U CN201520773707.6U CN201520773707U CN205027957U CN 205027957 U CN205027957 U CN 205027957U CN 201520773707 U CN201520773707 U CN 201520773707U CN 205027957 U CN205027957 U CN 205027957U
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- negative selenodont
- biconvex lens
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Abstract
The utility model relates to a dual -purpose miniature camera lens of wide angle high definition day night, including a primary mirror section of thick bamboo, set gradually after going to in the primary mirror section of thick bamboo and organize by the first veneer group that forms by first burden month tooth form wafer lens and second burden preceding arrangement of mirrors piece, biconvex lens, second biconvex lens and the third burden month tooth form wafer lens that month tooth form wafer lens are formed on same optical axis and the second veneer of third biconvex lens and month tooth form wafer lens formation of fourth burden, be provided with the spacer ring between preceding arrangement of mirrors piece and the biconvex lens, be provided with the second spacer ring between biconvex lens and the first veneer group, be provided with the third spacer ring between first veneer group and the second veneer group, primary mirror section of thick bamboo front end still spiro union has preceding clamping ring. This camera lens is compact structure not only, and the image image quality is clear moreover.
Description
Technical field
The utility model relates to a kind of wide-angle high definition day and night micro pick-up lens.
Background technology
Appearance and the application of micro television CCTV camera have the history of 20 ~ 30 years; there is the micro pick-up lens of varied specifications and models supporting with it. their performance index are very different; great majority belong to low grade products, and performance index are low, only adapt to the common camera of 20 ~ 300,000 pixels; The spectral range adapted to is narrow, can only use in the daytime of 480nm ~ 700nm under light condition.
Summary of the invention
The purpose of this utility model is to provide a kind of wide-angle high definition day and night micro pick-up lens, this camera lens not only compact conformation, and image quality is clear.
The technical solution of the utility model is: a kind of wide-angle high definition day and night micro pick-up lens, comprise body tube, after going to, arrangement of mirrors sheet before being made up of the first negative selenodont wafer lens and the second negative selenodont wafer lens on same optical axis is disposed with in described body tube, biconvex lens, second gummed group of the first gummed group that the second biconvex lens and the 3rd negative selenodont wafer lens are formed and the 3rd biconvex lens and the 4th negative selenodont wafer lens formation, spacer ring is provided with between described front arrangement of mirrors sheet and biconvex lens, the second spacer ring is provided with between described biconvex lens and the first gummed group, the 3rd spacer ring is provided with between described first gummed group and the second gummed group, described body tube front end is also bolted with front trim ring.
Further, in the inner chamber of described body tube, stepped the first installation terrace, second that is provided with installs terrace and the 3rd installation terrace, described first negative selenodont wafer lens is arranged in the first installation terrace, second negative selenodont wafer lens and spacer ring are arranged in the second installation terrace, and described biconvex lens, the second spacer ring, the first gummed group, the 3rd spacer ring and the second gummed group are arranged in the 3rd terrace.
Further, the front convex surface of the second negative selenodont wafer lens of described front arrangement of mirrors sheet is embedded in the back concave surface of the first negative selenodont wafer lens.
Further, the airspace between described first negative selenodont wafer lens and the second negative selenodont wafer lens is 1.90 ~ 1.95mm.
Further, described spacer ring front end and the second negative selenodont wafer lens abut against, and spacer ring rear end and biconvex lens abut against, and are provided with the taper hole reduced to the front convex surface of biconvex lens by the back concave surface of the second negative selenodont wafer lens in the middle part of spacer ring.
Further, the airspace between described second negative selenodont wafer lens and biconvex lens is 5.65 ~ 5.70mm.
Further, on rear side of described second spacer ring front end and biconvex lens, convex surface abuts against, and the second spacer ring rear end and the second biconvex lens front convex surface abut against, and the rear side convex surface of described second biconvex lens is embedded in the front side concave surface of the 3rd negative selenodont wafer lens.
Further, the airspace between described biconvex lens and the second biconvex lens is 1.93 ~ 1.98mm.
Further, the rear side convex surface of described 3rd biconvex lens is embedded in the front side concave surface of the 4th negative selenodont wafer lens, and the airspace between described first gummed group and the second gummed group is 0.18 ~ 0.22mm.
Compared with prior art, the utility model has the following advantages:
1. this camera lens not only compact conformation, and this camera lens promotes the image quality of miniature video camera system, improve the authenticity of picture, expand the range of application of miniature camera system, for miniature video camera system a kind of Large visual angle angle is provided, resolution is better than 3,000,000 pixels, day and night micro pick-up lens.
2. select the optical glass material of high refraction, low dispersion, by computer optics Computer Aided Design with optimize the various aberration and the distortion that correct optical lens, make camera lens realize high resolving power, logical greatly light quantity, day and night the performance such as confocal.
3. ensureing the accurate of the concentricity of camera lens, precision and axial location, make again structural design compact small and exquisite (overall dimensions Ф 18mmx18.1mm), can be applicable to the occasion that structure is compacter, such as small-sized ball machine etc., its applicable surface is wider.Wherein all constitutional details adopt NC super machining technique, and meet the strict demand of optical design to air distance, make the compact conformation of camera lens, volume is little, lightweight.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is light channel structure schematic diagram of the present utility model;
In figure: the negative selenodont wafer lens 11-diaphragm of trim ring 2-body tube 3-spacer ring 31-taper hole 4-second spacer ring 5-the 3rd spacer ring 6-first negative selenodont wafer lens negative selenodont wafer lens 8-biconvex lens 9-first gummed group 91-second biconvex lens negative selenodont wafer lens 10-second gummed group 101-the 3rd biconvex lens 102-the 4th of 92-the 3rd of 7-second before 1-.
Embodiment
For above-mentioned feature and advantage of the present utility model can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below, but the utility model is not limited to this.
With reference to figure 1 and Fig. 2
A kind of wide-angle high definition day and night micro pick-up lens, comprise body tube 2, after going to, arrangement of mirrors sheet before being made up of the first negative selenodont wafer lens 6 and the second negative selenodont wafer lens 7 on same optical axis is disposed with in described body tube, biconvex lens 8, second gummed group 10 of the first gummed group 9 that the second biconvex lens 91 and the 3rd negative selenodont wafer lens 92 are formed and the 3rd biconvex lens 101 and the 4th negative selenodont wafer lens 102 formation, spacer ring 3 is provided with between described front arrangement of mirrors sheet and biconvex lens, to ensure the airspace between front arrangement of mirrors sheet and biconvex lens, the second spacer ring 4 is provided with, to ensure the airspace between biconvex lens and the second biconvex lens between described biconvex lens and the first gummed group, the 3rd spacer ring 5 is provided with, to ensure the airspace between the 3rd negative selenodont wafer lens and the 3rd biconvex lens between described first gummed group and the second gummed group, described body tube front end is also bolted with for compressing trim ring 1 before the first negative selenodont wafer lens and each lens of rear side thereof, the front side of front trim ring has the reducing for abutting against with the first negative selenodont wafer lens edge, to ensure being mounted with property, the stability of whole eyeglass.
In the present embodiment, in the inner chamber of described body tube, the stepped first installation terrace 21, second that is provided with installs terrace 22 and the 3rd installation terrace 23, described first negative selenodont wafer lens 6 is arranged in the first installation terrace 21, second negative selenodont wafer lens 7 and spacer ring 3 are arranged in the second installation terrace 22, and described biconvex lens, the second spacer ring, the first gummed group, the 3rd spacer ring and the second gummed group are arranged in the 3rd terrace.
In the present embodiment, the front convex surface of the second negative selenodont wafer lens of described front arrangement of mirrors sheet is embedded in the back concave surface of the first negative selenodont wafer lens, and the airspace between described first negative selenodont wafer lens and the second negative selenodont wafer lens is 1.90 ~ 1.95mm.
In a preferred embodiment, the airspace between described first negative selenodont wafer lens and the second negative selenodont wafer lens is 1.92mm.
In the present embodiment, described spacer ring front end and the second negative selenodont wafer lens abut against, spacer ring rear end and biconvex lens abut against, the taper hole 31 reduced to the front convex surface of biconvex lens by the back concave surface of the second negative selenodont wafer lens is provided with in the middle part of spacer ring, the axial line of described taper hole is consistent with optical axis, arranges diaphragm 11 in described taper hole.
In the present embodiment, the airspace between described second negative selenodont wafer lens and biconvex lens is 5.65 ~ 5.70mm.
In a preferred embodiment, the airspace between described second negative selenodont wafer lens and biconvex lens is 5.68mm.
In the present embodiment, on rear side of described second spacer ring front end and biconvex lens, convex surface abuts against, second spacer ring rear end and the second biconvex lens front convex surface abut against, the rear side convex surface of described second biconvex lens is embedded in the front side concave surface of the 3rd negative selenodont wafer lens, and the airspace between described biconvex lens and the second biconvex lens is 1.93 ~ 1.98mm.
In a preferred embodiment, the airspace between described biconvex lens and the second biconvex lens is 1.95mm.
In the present embodiment, the rear side convex surface of described 3rd biconvex lens is embedded in the front side concave surface of the 4th negative selenodont wafer lens, the rear side convex surface of described 4th negative selenodont wafer lens is connected on the 3rd terrace, and the airspace between described first gummed group and the second gummed group is 0.18 ~ 0.22mm.
In a preferred embodiment, the airspace between described first gummed group and the second gummed group is 0.2mm.
The technical indicator that this reality newly realizes is: focal length: f '=2.1mm; Relative aperture F=1.8; Field angle: 2w >=150 ° (image space is as visual field 2 η ' >=Ф 6mm); Distortion: <-10%; Resolution: can be adaptive with 3,000,000 pixel high-resolution CCD or cmos camera; Light path overall length ∑≤24mm, optics rear cut-off distance l ' >=6mm; Be suitable for spectral line scope: 480nm ~ 850nm.
The foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (9)
1. a wide-angle high definition day and night micro pick-up lens, it is characterized in that, comprise body tube, after going to, arrangement of mirrors sheet before being made up of the first negative selenodont wafer lens and the second negative selenodont wafer lens on same optical axis is disposed with in described body tube, biconvex lens, second gummed group of the first gummed group that the second biconvex lens and the 3rd negative selenodont wafer lens are formed and the 3rd biconvex lens and the 4th negative selenodont wafer lens formation, spacer ring is provided with between described front arrangement of mirrors sheet and biconvex lens, the second spacer ring is provided with between described biconvex lens and the first gummed group, the 3rd spacer ring is provided with between described first gummed group and the second gummed group, described body tube front end is also bolted with front trim ring.
2. wide-angle high definition day and night micro pick-up lens according to claim 1, it is characterized in that, in the inner chamber of described body tube, stepped the first installation terrace, second that is provided with installs terrace and the 3rd installation terrace, described first negative selenodont wafer lens is arranged in the first installation terrace, second negative selenodont wafer lens and spacer ring are arranged in the second installation terrace, and described biconvex lens, the second spacer ring, the first gummed group, the 3rd spacer ring and the second gummed group are arranged in the 3rd terrace.
3. wide-angle high definition day and night micro pick-up lens according to claim 1 and 2, is characterized in that, the front convex surface of the second negative selenodont wafer lens of described front arrangement of mirrors sheet is embedded in the back concave surface of the first negative selenodont wafer lens.
4. wide-angle high definition day and night micro pick-up lens according to claim 3, is characterized in that, the airspace between described first negative selenodont wafer lens and the second negative selenodont wafer lens is 1.90 ~ 1.95mm.
5. the wide-angle high definition day and night micro pick-up lens according to claim 1,2 or 4, it is characterized in that, described spacer ring front end and the second negative selenodont wafer lens abut against, spacer ring rear end and biconvex lens abut against, and are provided with the taper hole reduced to the front convex surface of biconvex lens by the back concave surface of the second negative selenodont wafer lens in the middle part of spacer ring.
6. wide-angle high definition day and night micro pick-up lens according to claim 5, is characterized in that, the airspace between described second negative selenodont wafer lens and biconvex lens is 5.65 ~ 5.70mm.
7. the wide-angle high definition day and night micro pick-up lens according to claim 1,2,4 or 6, it is characterized in that, on rear side of described second spacer ring front end and biconvex lens, convex surface abuts against, second spacer ring rear end and the second biconvex lens front convex surface abut against, and the rear side convex surface of described second biconvex lens is embedded in the front side concave surface of the 3rd negative selenodont wafer lens.
8. wide-angle high definition day and night micro pick-up lens according to claim 7, it is characterized in that, the airspace between described biconvex lens and the second biconvex lens is 1.93 ~ 1.98mm.
9. the wide-angle high definition day and night micro pick-up lens according to claim 1,2,4,6 or 8, it is characterized in that, the rear side convex surface of described 3rd biconvex lens is embedded in the front side concave surface of the 4th negative selenodont wafer lens, and the airspace between described first gummed group and the second gummed group is 0.18 ~ 0.22mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520773707.6U CN205027957U (en) | 2015-10-08 | 2015-10-08 | Dual -purpose miniature camera lens of wide angle high definition day night |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520773707.6U CN205027957U (en) | 2015-10-08 | 2015-10-08 | Dual -purpose miniature camera lens of wide angle high definition day night |
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| CN205027957U true CN205027957U (en) | 2016-02-10 |
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| CN201520773707.6U Active CN205027957U (en) | 2015-10-08 | 2015-10-08 | Dual -purpose miniature camera lens of wide angle high definition day night |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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2015
- 2015-10-08 CN CN201520773707.6U patent/CN205027957U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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