CN206387950U - A kind of long-focus day and night fixed focus monitoring camera lens - Google Patents
A kind of long-focus day and night fixed focus monitoring camera lens Download PDFInfo
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- CN206387950U CN206387950U CN201621472513.3U CN201621472513U CN206387950U CN 206387950 U CN206387950 U CN 206387950U CN 201621472513 U CN201621472513 U CN 201621472513U CN 206387950 U CN206387950 U CN 206387950U
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- positive light
- balsaming
- light coke
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Abstract
The utility model discloses a kind of long-focus day and night fixed focus monitoring camera lens, include successively from the object side to image side：The first lens with positive light coke, the second lens with positive light coke, the 3rd lens with negative power, the 4th lens with positive light coke, the 5th lens with negative power and the 6th lens with positive light coke, second lens with positive light coke and the 3rd lens gluing with negative power form the first balsaming lens with positive light coke, the 4th lens with positive light coke and the 5th lens gluing with negative power form the second balsaming lens with negative power, aperture diaphragm is arranged between the second balsaming lens and the 6th lens.Whole system compact conformation, convenient for assembly, good imaging quality reduces infrared light with respect to the defocusing amount of visible ray, can reach day and night confocal purpose.
Description
Technical field
The utility model belongs to field of optical lens, and in particular to a kind of long-focus day and night fixed focus monitoring camera lens.
Background technology
With China's intelligent transportation, the development of safe city, security technology status socially and act on also with day
It is all to increase.Closed monitor system plays important as a kind of security technology in places such as hotel, Administrative Area, bank, cells
Effect.
In order to allow monitoring system to play more preferable effect, the operation of the correct selection of camera lens to whole system is all very heavy
Want, the fixed scene day and night continuously monitored for needs, the tight shot of day and night just turns into an excellent selection.Day
Night, dual-purpose fixed focus monitoring camera lens reflection speed was fast, and image quality is stable, using widely in monitoring system.Currently on the market
There is a day and night fixed focus monitoring camera lens of the short focus such as 3mm, 4mm, 6mm, 8mm, 12mm, and the long-focus more than 20mm day and night two
It is then more rare with fixed focus monitoring system.Therefore, it is very necessary to design a kind of day and night fixed focus monitoring system of long-focus
's.
Utility model content
The purpose of this utility model is to provide a kind of compact conformation, the long-focus day and night fixed focus monitoring of good imaging quality
Camera lens.
To achieve the above object, the technical solution adopted in the utility model is as follows：
A kind of long-focus day and night fixed focus monitoring camera lens, it is characterised in that：Include successively from the object side to image side：With just
First lens of focal power, the second lens with positive light coke, the 3rd lens with negative power, with positive light coke
4th lens, the 5th lens with negative power and the 6th lens with positive light coke, it is described with positive light coke the
Two lens and first balsaming lens of the 3rd lens gluing formation with positive light coke with negative power, it is described that there is positive light
4th lens of focal power and second balsaming lens of the 5th lens gluing formation with negative power with negative power, aperture
Diaphragm is arranged between the second balsaming lens and the 6th lens.
The focal length of camera lens and the ratio of back focal length are more than 2, f-number≤2.1 of camera lens；The first lens L1 has just
Focal power, the first face is convex surface, and the second face is concave surface, and glass spherical lens, material d optical indexs are more than 1.6；Second lens L2
With positive light coke, double convex glass spherical lens, material d optical indexs are more than 1.6；3rd lens L3 has negative power, double
Recessed glass spherical lens, material d optical indexs are less than 1.76；4th lens L4 has a positive light coke, double convex glass spherical lens,
Material d optical indexs are more than 1.85；5th lens L5 has negative power, and concave-concave glass spherical lens, material d optical indexs are big
In 1.8；6th lens L6 has positive light coke, and double convex glass spherical lens, material d optical indexs are more than 1.6；First lens L1
Axially spaced-apart distance between the first balsaming lens U1 is 0.1mm；Between first balsaming lens U1 and the second balsaming lens U2
Axially spaced-apart distance be 1.09mm；Axially spaced-apart distance between second balsaming lens U2 and the 6th lens L6 is 0.95mm.
Between first lens and the first balsaming lens, pass through interval between the first balsaming lens and the second balsaming lens
Ring group puts into lens barrel, together with the second balsaming lens is directly born against with the 6th lens, and the first lens are fixed in lens barrel by trim ring.
Using the beneficial effect of above-mentioned technical proposal：Long-focus day and night fixed focus monitoring camera lens described in the utility model
Using just, the spherical lens structure of positive and negative, positive 4 group of 6 chip, the second lens and the 3rd lens gluing are formed first glued
Lens, the 4th lens and the 5th lens gluing form the second balsaming lens, make whole system compact conformation, convenient for assembly.Pass through
Positive and negative lens are glued, correct the spherical aberration and aberration of system, lift image quality, reduce defocusing amount of the infrared light with respect to visible ray,
Reach day and night confocal purpose.
Brief description of the drawings
Fig. 1 is structure chart of the present utility model；
Fig. 2 is visible ray transmission function figure of the present utility model；
Fig. 3 is infrared light transmission function figure of the present utility model；
Fig. 4 is spherical aberration performance diagram of the present utility model；
Fig. 5 is color aberration characteristics curve map of the present utility model；
Fig. 6 is the curvature of field of the present utility model and distortion figure.
Embodiment
In order that the technical solution of the utility model statement becomes apparent from, the utility model is done further below in conjunction with the accompanying drawings
Explanation.
A kind of long-focus day and night fixed focus monitoring camera lens with reference to shown in Fig. 1, from the object side to image side, along light incidence side
To including the with the first lens L1 of positive light coke, the second lens L2 with positive light coke, with negative power successively
Three lens L3, the 4th lens L4 with positive light coke, the 5th lens L5 with negative power and with positive light coke
Six lens L6.The second lens L2 with positive light coke and the 3rd lens L3 gluings with negative power, which are formed, has positive light focus
First balsaming lens U1 of degree, the 4th lens L4 with positive light coke and the 5th lens L5 gluings with negative power are formed
The second balsaming lens U2 with negative power.Aperture diaphragm is arranged between the second balsaming lens U2 and the 6th lens L6.
The focal length of camera lens and the ratio of back focal length are more than 2.F-number F#≤2.1 of camera lens.First lens L1 has positive light
Focal power, the first face is convex surface, and the second face is concave surface, and glass spherical lens, material d optical indexs are more than 1.6.
Second lens L2 has positive light coke, and double convex glass spherical lens, material d optical indexs are more than 1.6.
3rd lens L3 has negative power, and concave-concave glass spherical lens, material d optical indexs are less than 1.76.
4th lens L4 has positive light coke, and double convex glass spherical lens, material d optical indexs are more than 1.85.
5th lens L5 has negative power, and concave-concave glass spherical lens, material d optical indexs are more than 1.8.
6th lens L6 has positive light coke, and double convex glass spherical lens, material d optical indexs are more than 1.6.
Axially spaced-apart distance between first lens L1 and the first balsaming lens U1 is 0.1mm.
Axially spaced-apart distance between first balsaming lens U1 and the second balsaming lens U2 is 1.09mm.
Axially spaced-apart distance between second balsaming lens U2 and the 6th lens L6 is 0.95mm.
It is respectively that visible ray transfer curve figure and infrared optical transfer system of the present utility model are bent shown in Fig. 2 and Fig. 3
Line chart.Fig. 4 is spherical aberration performance diagram of the present utility model；Fig. 5 is color aberration characteristics curve map of the present utility model.This practicality is new
Day and night fixed focus monitoring camera lens described in type using just, the spherical lens structure of positive and negative, positive 4 group of 6 chip, whole system
Compact conformation, it is easy to assembly.It is glued by positive and negative lens, the spherical aberration and aberration of system are corrected, image quality is lifted, reduced infrared
Light reaches day and night confocal purpose with respect to the defocusing amount of visible ray.
Claims (3)
1. a kind of long-focus day and night fixed focus monitoring camera lens, it is characterised in that：Include successively from the object side to image side：With positive light
First lens of focal power, the second lens with positive light coke, the 3rd lens with negative power, with positive light coke
Four lens, the 5th lens with negative power and the 6th lens with positive light coke, it is described with positive light coke second
Lens and first balsaming lens of the 3rd lens gluing formation with positive light coke with negative power, it is described that there is positive light focus
4th lens of degree and second balsaming lens of the 5th lens gluing formation with negative power with negative power, aperture light
Door screen is arranged between the second balsaming lens and the 6th lens.
2. long-focus day and night fixed focus monitoring camera lens as claimed in claim 1, it is characterised in that：The focal length of camera lens and rear Jiao
Away from ratio be more than 2, f-number≤2.1 of camera lens；The first lens L1 has positive light coke, and the first face is convex surface, second
Face is concave surface, and glass spherical lens, material d optical indexs are more than 1.6；Second lens L2 has positive light coke, double convex glass ball
Face lens, material d optical indexs are more than 1.6；3rd lens L3 has negative power, concave-concave glass spherical lens, material d light folding
Rate is penetrated less than 1.76；4th lens L4 has positive light coke, and double convex glass spherical lens, material d optical indexs are more than 1.85；The
Five lens L5 have negative power, and concave-concave glass spherical lens, material d optical indexs are more than 1.8；6th lens L6 has positive light
Focal power, double convex glass spherical lens, material d optical indexs are more than 1.6；Axle between first lens L1 and the first balsaming lens U1
It is 0.1mm to spacing distance；Axially spaced-apart distance between first balsaming lens U1 and the second balsaming lens U2 is 1.09mm；The
Axially spaced-apart distance between two balsaming lens U2 and the 6th lens L6 is 0.95mm.
3. long-focus day and night fixed focus monitoring camera lens as claimed in claim 1, it is characterised in that：First lens and
Lens barrel is assembled into by spacer ring between one balsaming lens, between the first balsaming lens and the second balsaming lens, second it is glued thoroughly
Together with mirror is directly born against with the 6th lens, the first lens are fixed in lens barrel by trim ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621472513.3U CN206387950U (en) | 2016-12-30 | 2016-12-30 | A kind of long-focus day and night fixed focus monitoring camera lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621472513.3U CN206387950U (en) | 2016-12-30 | 2016-12-30 | A kind of long-focus day and night fixed focus monitoring camera lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206387950U true CN206387950U (en) | 2017-08-08 |
Family
ID=59490642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621472513.3U Active CN206387950U (en) | 2016-12-30 | 2016-12-30 | A kind of long-focus day and night fixed focus monitoring camera lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206387950U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407274A (en) * | 2018-11-23 | 2019-03-01 | 信华精机有限公司 | A kind of day and night confocal optics camera lens |
| CN112987254A (en) * | 2021-03-08 | 2021-06-18 | 范志明 | Apochromatic ultra-long-focus photographic lens |
| CN113835200A (en) * | 2021-11-25 | 2021-12-24 | 南京万生华态科技有限公司 | Full-frame lens capable of simultaneously covering visible light and near-infrared light |
| CN114879344A (en) * | 2022-05-23 | 2022-08-09 | 东莞市宇瞳汽车视觉有限公司 | Fixed focus lens |
-
2016
- 2016-12-30 CN CN201621472513.3U patent/CN206387950U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407274A (en) * | 2018-11-23 | 2019-03-01 | 信华精机有限公司 | A kind of day and night confocal optics camera lens |
| CN109407274B (en) * | 2018-11-23 | 2024-05-24 | 惠州市信华光学技术有限公司 | Day and night confocal optical lens |
| CN112987254A (en) * | 2021-03-08 | 2021-06-18 | 范志明 | Apochromatic ultra-long-focus photographic lens |
| CN113835200A (en) * | 2021-11-25 | 2021-12-24 | 南京万生华态科技有限公司 | Full-frame lens capable of simultaneously covering visible light and near-infrared light |
| CN113835200B (en) * | 2021-11-25 | 2022-02-11 | 南京万生华态科技有限公司 | Full-frame lens capable of simultaneously covering visible light and near-infrared light |
| CN114879344A (en) * | 2022-05-23 | 2022-08-09 | 东莞市宇瞳汽车视觉有限公司 | Fixed focus lens |
| CN114879344B (en) * | 2022-05-23 | 2023-08-22 | 东莞市宇瞳汽车视觉有限公司 | Fixed focus lens |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190717 Address after: 473000 No. 366 Xinchen West Road, Nanyang High-tech Zone, Henan Province Patentee after: Nanyang Lida Photoelectric Co., Ltd. Address before: 473000 Nanyang Industrial Road, Henan, No. 508 Patentee before: Lida Optical and Electronic Co., Ltd. |
|
| TR01 | Transfer of patent right |