CN209674093U - A kind of optical system for monitoring - Google Patents
A kind of optical system for monitoring Download PDFInfo
- Publication number
- CN209674093U CN209674093U CN201920613409.9U CN201920613409U CN209674093U CN 209674093 U CN209674093 U CN 209674093U CN 201920613409 U CN201920613409 U CN 201920613409U CN 209674093 U CN209674093 U CN 209674093U
- Authority
- CN
- China
- Prior art keywords
- eyeglass
- utility
- model
- glass
- optical system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Lenses (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The utility model provides a kind of optical system for monitoring; including the first eyeglass, diaphragm, the second eyeglass, third eyeglass, the 4th eyeglass, optical filter, protection glass and the sensitive chip set gradually by object plane to image planes; the focal length of first eyeglass and the 4th eyeglass is negative value; the focal length of second eyeglass and the third piece eyeglass is positive value; second eyeglass is glass spheric glass, and first eyeglass, third eyeglass and the 4th eyeglass are plastic aspherical element eyeglass.The utility model uses glass spherical surface and plastic aspherical element, and cost is greatly reduced.The utility model reduces cost, only with 4 pieces of eyeglasses convenient for assembling, and one piece of glass lens is used only, and the lens dimension is smaller, and lens quality is lighter.The utility model can blur-free imaging in entire picture.The utility model very good solution high/low temperature, infrared race coke problem realize image quality in the consistency of varying environment.
Description
[technical field]
The utility model relates to optical imaging system, especially a kind of optical system for monitoring.
[background technique]
The generally existing such disadvantage of camera lens used in monitoring camera at present: camera lens high/low temperature, infrared not confocal, at high cost
Deng.There is a small number of camera lenses on the market, in terms of improving some in the case where sacrificing other aspects, such as in order to realize height
Warm, infrared confocal and high pixel, has just used Glass aspheric eyeglass, and cost improves, and is not able to satisfy consumer's low cost
Demand.
[utility model content]
The technical problem to be solved by the present invention is to provide high/low temperature, infrared confocal, high pixel and a kind of use of low cost
In the optical system of monitoring.
Purpose of the utility model is realized as follows:
A kind of optical system for monitoring, including the first eyeglass, diaphragm, the second mirror set gradually by object plane to image planes
Piece, third eyeglass, the 4th eyeglass, optical filter, protection glass and sensitive chip, first eyeglass and the 4th eyeglass
Focal length is negative value, and the focal length of second eyeglass and the third piece eyeglass is positive value, and second eyeglass is glass spherical mirror
Piece, first eyeglass, third eyeglass and the 4th eyeglass are plastic aspherical element eyeglass.
A kind of optical system for monitoring as described above, first eyeglass, third eyeglass and the 4th eyeglass it is non-
Spherical surface type meets following equation:
A kind of optical system for monitoring as described above, the refractive index of first eyeglass are 1.5 to 1.6, Abbe
Number is 50 to 60;The refractive index of the third eyeglass is 1.5 to 1.6, and Abbe number is 50 to 60;The refractive index of 4th eyeglass
It is 1.6 to 1.7, Abbe number is 20 to 30.
A kind of optical system for monitoring as described above, the model 1/2.7 " of the sensitive chip, and it is diagonal
Line height is 6.6mm, and Pixel Dimensions are 2 μm of 2 μ m.
The utility model compared with prior art, has following technical characterstic:
1, existing high pixel monitoring camera generallys use Glass aspheric eyeglass, and the utility model uses glass spherical surface and modeling
Expect aspherical, cost is greatly reduced.
2, the eyeglass that existing high pixel monitoring camera generally uses is more, the utility model only with 4 pieces of eyeglasses, reduce at
Originally, convenient for assembling, and one piece of glass lens is used only, the lens dimension is smaller, and lens quality is lighter.
3, the periphery resolution ratio of existing high pixel monitoring camera is lower, the utility model entire picture can clearly at
Picture.
4, existing high pixel monitoring camera is easy unbalance on image sharpness and color reducibility, this camera lens is using wide light
1:1:1 design is composed, there is fabulous image sharpness and color reducibility in visible light wave range.
5, existing high pixel monitoring camera high/low temperature, it is infrared on can not achieve it is confocal, generate white light room temperature under to good coke
Afterwards, occur serious race under high/low temperature and infrared environmental burnt, the fuzzy situation of image planes, the utility model very good solution height
Warm, infrared race coke problem realizes image quality in the consistency of varying environment.
[Detailed description of the invention]
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing, in which:
Fig. 1 is the structural schematic diagram of the utility model.
[specific embodiment]
A kind of optical system for monitoring, including the first eyeglass 1, the diaphragm 2, second set gradually by object plane to image planes
Eyeglass 3, third eyeglass 4, the 4th eyeglass 5, optical filter 6, protection glass 7 and sensitive chip 8, the first eyeglass 1 and the 4th eyeglass 5
Focal length be negative value, the focal length of the second eyeglass 3 and third piece eyeglass 4 is positive value, and the second eyeglass 3 is glass spheric glass, first
Eyeglass 1, third eyeglass 4 and the 4th eyeglass 5 are plastic aspherical element eyeglass.
The aspherical face type of first eyeglass 1, third eyeglass 4 and the 4th eyeglass 5 meets following equation:
Wherein c be respective radius R it is reciprocal i.e.: c=1/R.
The refractive index of first eyeglass 1 is 1.5 to 1.6, and Abbe number is 50 to 60.The refractive index of third eyeglass 4 be 1.5 to
1.6, Abbe number is 50 to 60.The refractive index of 4th eyeglass 5 is 1.6 to 1.7, and Abbe number is 20 to 30.
The model 1/2.7 " of sensitive chip 8, and its diagonal height is 6.6mm, Pixel Dimensions are 2 μm of 2 μ m.
The radius R of the face S4 of second eyeglass 3 is -20 to -10, and the radius T of face S5 is -10 to -2.The face S8 of 4th eyeglass 5
Radius R be -5 to -2, the radius R of face S9 is that -10 to -5, k value corresponds to -5 to 5.
The design parameter of the best embodiment of the utility model is set forth below out:
The asphericity coefficient of first eyeglass 1, third eyeglass 4 and each face of the 4th eyeglass 5:
The high/low temperature of the utility model is confocal to be mainly realized by the following method: corresponding swollen using different plastic materials
Swollen coefficient is different, redesigns out different face types, and face type when high/low temperature is made to generate complementation, so that image quality when high/low temperature be made to keep not
Become.
The infrared of the utility model confocal is mainly realized by the following method: reasonable distribution difference plastic refractive index Nd
Make camera lens by designing reasonable face type with Abbe number Vd value under the premise of clear to white light imaging while meeting infrared light
Imaging clearly.
Its high pixel of the utility model is mainly realized by following approach: 1. efficient material adapteds, according to each
Lens it is positive and negative, reasonably distribute refractive index Nd and Abbe number Vd value, selecting suitable material according to this;2. emphasis mentions when design
While rising center resolution, sufficiently payes attention to the aberration correction of surrounding visual field, guarantee that entire picture image quality is uniform;3. using wide light
1:1:1 design is composed, to ensure that high-quality image sharpness and color reducibility.
The utility model is provided with sensitive chip 8 behind the 4th piece of eyeglass 5, while in the 4th piece of eyeglass 5 and photosensitive
Optical filter 6 and protection glass 7 are inserted between chip 8, to filter the veiling glare outside design wave band, and in design, it is contemplated that filter
The color difference that the substrate material of piece 6 and protection glass 7 introduces, and then be corrected, realize optimal imaging effect.
Claims (4)
1. a kind of optical system for monitoring, it is characterised in that including set gradually by object plane to image planes the first eyeglass (1),
Diaphragm (2), the second eyeglass (3), third eyeglass (4), the 4th eyeglass (5), optical filter (6), protection glass (7) and sensitive chip
(8), the focal length of first eyeglass (1) and the 4th eyeglass (5) is negative value, second eyeglass (3) and the third mirror
The focal length of piece (4) be positive value, second eyeglass (3) be glass spheric glass, first eyeglass (1), third eyeglass (4) and
4th eyeglass (5) is plastic aspherical element eyeglass.
2. a kind of optical system for monitoring according to claim 1, it is characterised in that first eyeglass (1),
The aspherical face type of three eyeglasses (4) and the 4th eyeglass (5) meets following equation:
3. a kind of optical system for monitoring according to claim 1 or 2, it is characterised in that first eyeglass (1)
Refractive index be 1.5 to 1.6, Abbe number be 50 to 60;The refractive index of the third eyeglass (4) is 1.5 to 1.6, and Abbe number is
50 to 60;The refractive index of 4th eyeglass (5) is 1.6 to 1.7, and Abbe number is 20 to 30.
4. a kind of optical system for monitoring according to claim 3, it is characterised in that the type of the sensitive chip (8)
Number be 1/2.7 ", and its diagonal height be 6.6mm, Pixel Dimensions be 2 μm of 2 μ m.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201920613409.9U CN209674093U (en) | 2019-04-29 | 2019-04-29 | A kind of optical system for monitoring |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201920613409.9U CN209674093U (en) | 2019-04-29 | 2019-04-29 | A kind of optical system for monitoring |
Publications (1)
Publication Number | Publication Date |
---|---|
CN209674093U true CN209674093U (en) | 2019-11-22 |
Family
ID=68574790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201920613409.9U Active CN209674093U (en) | 2019-04-29 | 2019-04-29 | A kind of optical system for monitoring |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN209674093U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109946819A (en) * | 2019-04-29 | 2019-06-28 | 中山联合光电科技股份有限公司 | A kind of optical system for monitoring |
-
2019
- 2019-04-29 CN CN201920613409.9U patent/CN209674093U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109946819A (en) * | 2019-04-29 | 2019-06-28 | 中山联合光电科技股份有限公司 | A kind of optical system for monitoring |
CN109946819B (en) * | 2019-04-29 | 2024-05-07 | 中山联合光电科技股份有限公司 | Optical system for monitoring |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105204140B (en) | A kind of tight shot | |
CN206505215U (en) | The big thang-kng small-sized wide-angle lens of 2.8mm | |
CN108388004B (en) | A kind of starlight grade high definition day and night confocal optics camera lens | |
CN106597641A (en) | Small-size low-cost 4MP athermalized prime lens | |
CN208888455U (en) | Tight shot is used in monitoring | |
CN205384401U (en) | High low temperature, infrared confocal, high pixel, little volume zoom optical system | |
CN105467565A (en) | High-and-low temperature infrared confocal high pixel little-distortion small-volume zooming optical system | |
CN205427290U (en) | Confocal, high pixel of high low temperature, little distortion, no parasitics light optical system | |
CN204807791U (en) | Optical lens | |
CN207164347U (en) | A kind of large aperture ultra high-definition day and night confocal optical system | |
CN106918897A (en) | A kind of compact ultra-wide angle day and night confocal opticses camera lens | |
CN104570286A (en) | Micro fisheye camera lens and head-mounted display equipment | |
CN107422462A (en) | A kind of large aperture ultra high-definition day and night confocal optical system | |
CN206671663U (en) | A kind of ultra-wide angle day and night confocal opticses camera lens | |
CN207704120U (en) | A kind of pick-up lens for vehicle-mounted AR-ADAS | |
CN204359996U (en) | A kind of miniature fish eye lens and wear display device | |
CN206532026U (en) | Small low-cost 4MP is without thermalization tight shot | |
CN209674093U (en) | A kind of optical system for monitoring | |
CN109459838A (en) | The vehicle-mounted optical system of wide-angle high-resolution and imaging method | |
CN106324796B (en) | A kind of optical lens | |
CN109946819A (en) | A kind of optical system for monitoring | |
CN110058381A (en) | Optical lens and electronic equipment | |
CN108761733A (en) | Large aperture, high pixel, high/low temperature be confocal, double light path optical system | |
CN204758904U (en) | High low temperature, infrared confocal, high pixel, little distortion optical system | |
CN205049805U (en) | High pixel, low cost, big light ring, little volume optical system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |