CN109696738A - A kind of low distorted optical industrial lens of focal length 16mm low cost high-resolution - Google Patents
A kind of low distorted optical industrial lens of focal length 16mm low cost high-resolution Download PDFInfo
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- CN109696738A CN109696738A CN201711003199.3A CN201711003199A CN109696738A CN 109696738 A CN109696738 A CN 109696738A CN 201711003199 A CN201711003199 A CN 201711003199A CN 109696738 A CN109696738 A CN 109696738A
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- low cost
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
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Abstract
The invention discloses a kind of low distorted optical industrial lens of focal length 16mm low cost high-resolution, successively include the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens from object side to image side along optical axis.First lens are the negative power spectacle lenses of curved month type, and convex surface is towards object side.Second lens are biconvex positive diopter lens.The third lens are the negative power spectacle lenses of curved month type, and convex surface is towards object side.4th lens are curved month type positive diopter lens, and convex surface is towards object side.5th lens are the negative power spectacle lenses of concave-concave.6th lens are biconvex positive diopter lens.7th lens are biconvex positive diopter.The optics industry camera lens is not only simple in structure, and realizes object distance from the infinite low distortion as far as short distance.
Description
Technical field
The present invention relates to a kind of optical lens, the low distorted optical industry of specifically a kind of focal length 16mm low cost high-resolution
Camera lens.
Background technique
Since China since two thousand and ten achieves in field of machine vision the growth of explosion type, industrial camera and camera lens
40% amplification is maintained, so that a large amount of good industrial lens of the market demand.On the other hand in order to obtain the image of high-quality,
The pixel of the sensitive chips such as its CCD used or CMOS is higher and higher.In order to make the image quality of camera lens match the high picture of sensitive chip
Element generallys use the mode of increase eyeglass to reach, and this mode increases the cost of camera lens.
Summary of the invention
Few, inexpensive, high-resolution that the purpose of the present invention is to provide a kind of eyeglasses, low distortion optics industry camera lens,
To solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of low distorted optical industrial lens of focal length 16mm low cost high-resolution, successively include from object side to image side along optical axis
One lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens.First lens
For the negative power spectacle lenses of curved month type, convex surface is towards object side.Second lens are biconvex positive diopter lens.The third lens are curved month type
Negative power spectacle lenses, convex surface is towards object side.4th lens are curved month type positive diopter lens, and convex surface is towards object side.5th lens
For the negative power spectacle lenses of concave-concave.6th lens are biconvex positive diopter lens.7th lens are biconvex positive diopter.
As a further solution of the present invention: the 5th lens and the 6th lens contiguity become balsaming lens group.
As a further solution of the present invention: including aperture, the aperture is set to the 4th lens in the balsaming lens
Between group.
As a further solution of the present invention: first lens meet the following conditions:
f1/f<0
Wherein, f1 is the effective focal length of the first lens, and f is the effective focal length of the optics industry camera lens.
As a further solution of the present invention: first lens and the 7th lens meet the following conditions:
0.5<│f1/f7│<5。
Wherein, f1 is the effective focal length of the first lens, and f7 is the effective focal length of the 7th lens.
As a further solution of the present invention: the 7th lens meet the following conditions:
0<f7/f<10
0<f7/f<10
Wherein, f7 is the effective focal length of the 7th lens, and f is the effective focal length of optics industry camera lens.
As a further solution of the present invention: there is no airspace between the 5th lens and the 6th lens.
As a further solution of the present invention: a kind of low distorted optical industrial lens institute of focal length 16mm low cost high-resolution
It is all that domestic optical glass material is made with eyeglass.
As a further solution of the present invention: a kind of low distorted optical industry mirror of the focal length 16mm low cost high-resolution
Eyeglass used in head is all spherical surface.
Compared with prior art, the beneficial effects of the present invention are: meeting above-mentioned configuration advantageously ensures that a kind of focal length
The low distorted optical industrial lens of 16mm low cost high-resolution reduce cost, while having modified all kinds of aberrations of each wave band, make
Center and peripheral field have enough resolution ratio.
Detailed description of the invention
Fig. 1 is a kind of section of the low distorted optical industrial lens of focal length 16mm low cost high-resolution in the embodiment of the present invention
Structural schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, Fig. 1 is the lens configuration schematic diagram of an embodiment of industrial lens according to the present invention, in order to just
In understanding the present invention, invention is described more fully below with reference to relevant drawings,.
In the embodiment of the present invention, a kind of low distorted optical industrial lens of focal length 16mm low cost high-resolution, along optical axis from
Object side to image side successively includes the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and
Seven lens.First lens are the negative power spectacle lenses of curved month type, and convex surface is towards object side.Second lens are that biconvex positive diopter is saturating
Mirror.The third lens are the negative power spectacle lenses of curved month type, and convex surface is towards object side.4th lens are curved month type positive diopter lens, convex
Facing towards object side.5th lens are the negative power spectacle lenses of concave-concave.6th lens are biconvex positive diopter lens.7th lens are double
Convex positive diopter.
Wherein, eyeglass used in industrial lens of the invention is all that domestic optical glass material is made.
Wherein, eyeglass face shape used in industrial lens of the invention is all spherical surface.
In addition, the industrial lens a in the present embodiment is needed to make industrial lens of the invention be able to maintain good optical property
Meet following three conditions:
f1/f<0
0.5<│f1/f7│<5
0<f7/f<10
Wherein, f1 is the effective focal length of the first lens, and f is the effective focal length of optics industry camera lens, and f7 is the effective of the 7th lens
Focal length.
In the present embodiment, the relevant parameter of each lens is as shown in table 1:
Table 1
The technical indicator that the present invention realizes is as follows:
1. focal length: f'=16mm.
2. close-shot is away from 100mm.
3. distortion :≤0.5%.
4. relative aperture D/f'=1/2.8.
5. 2 ω: 31 ° of field angle.
6. resolution ratio: 10,000,000 pixels.
7. optics overall length ∑≤50mm.
8. applicable spectral region: 450nm~650nm.
The present invention is not limited to the above embodiments, on the basis of technical solution disclosed by the invention, the skill of this field
For art personnel according to disclosed technology contents, one can be made to some of which technical characteristic by not needing creative labor
A little simple modification, equivalent change and modifications, belong in the range of technical solution of the present invention.
In the description of this specification, it should be noted that unless otherwise clearly defined and limited, term " setting ",
" connected " and " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, can concrete condition understand the concrete meaning of above-mentioned term in the present invention.
Claims (6)
1. a kind of low distorted optical industrial lens of focal length 16mm low cost high-resolution, which is characterized in that along optical axis from object side to
Image side successively includes:
First lens are the negative power spectacle lenses of curved month type, and convex surface is towards object side；
Second lens are biconvex positive diopter lens；
The third lens are the negative power spectacle lenses of curved month type, and convex surface is towards object side；
4th lens are curved month type positive diopter lens, and convex surface is towards object side；
5th lens are the negative power spectacle lenses of concave-concave；
6th lens are biconvex positive diopter lens；
7th lens are biconvex positive diopter.
2. a kind of low distorted optical industrial lens of focal length 16mm low cost high-resolution according to claim 1, feature
It is, the 5th lens and the 6th lens are connected to become balsaming lens group.
3. a kind of low distorted optical industrial lens of focal length 16mm low cost high-resolution according to claim 2, feature
It is, including aperture, the aperture is set between the 4th lens and balsaming lens group.
4. a kind of low distorted optical industrial lens of focal length 16mm low cost high-resolution according to claim 1, feature
It is, first lens meet the following conditions:
f1/f<0
Wherein, f1 is the effective focal length of first lens, and f is the effective focal length of the optics industry camera lens.
5. a kind of low distorted optical industrial lens of focal length 16mm low cost high-resolution according to claim 1, feature
It is, first lens and the 7th lens meet the following conditions:
0.5<│f1/f7│<5
Wherein, f1 is the effective focal length of first lens, and f7 is the effective focal length of the 7th lens.
6. a kind of low distorted optical industrial lens of focal length 16mm low cost high-resolution according to claim 1, feature
It is, the 7th lens meet the following conditions:
0<f7/f<10
Wherein, the effective focal length of the 7th lens of f7, f are the effective focal length of the optics industry camera lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711003199.3A CN109696738B (en) | 2017-10-24 | 2017-10-24 | 16 mm-focal-length low-cost high-resolution low-distortion optical industrial lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711003199.3A CN109696738B (en) | 2017-10-24 | 2017-10-24 | 16 mm-focal-length low-cost high-resolution low-distortion optical industrial lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109696738A true CN109696738A (en) | 2019-04-30 |
| CN109696738B CN109696738B (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711003199.3A Active CN109696738B (en) | 2017-10-24 | 2017-10-24 | 16 mm-focal-length low-cost high-resolution low-distortion optical industrial lens |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5303088A (en) * | 1991-10-23 | 1994-04-12 | Canon Kabushiki Kaisha | Retrofocus type lens |
| US5724191A (en) * | 1994-12-30 | 1998-03-03 | Eastman Kodak Company | Enlarging lens with a large working distance |
| CN106125260A (en) * | 2016-08-25 | 2016-11-16 | 广东弘景光电科技股份有限公司 | The low distortion of ultra-wide angle high pixel optics system and the camera lens of application thereof |
| CN106154488A (en) * | 2014-10-16 | 2016-11-23 | 三星电机株式会社 | Optical system |
-
2017
- 2017-10-24 CN CN201711003199.3A patent/CN109696738B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5303088A (en) * | 1991-10-23 | 1994-04-12 | Canon Kabushiki Kaisha | Retrofocus type lens |
| US5724191A (en) * | 1994-12-30 | 1998-03-03 | Eastman Kodak Company | Enlarging lens with a large working distance |
| CN106154488A (en) * | 2014-10-16 | 2016-11-23 | 三星电机株式会社 | Optical system |
| CN106125260A (en) * | 2016-08-25 | 2016-11-16 | 广东弘景光电科技股份有限公司 | The low distortion of ultra-wide angle high pixel optics system and the camera lens of application thereof |
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| Publication number | Publication date |
|---|---|
| CN109696738B (en) | 2021-01-29 |
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Effective date of registration: 20211124 Address after: 410116 workshop 101, building 1, Jinhai Industrial Park, 177 Jinhai Road, Yuhua District, Changsha City, Hunan Province Patentee after: HUNAN CHIOPT OPTICAL TECHNOLOGY Co.,Ltd. Address before: 511400 2nd floor, No.1 Workshop, Jinshan Industrial Park, pengdizhuang, lirendong village, Nancun Town, Panyu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU CHIOPT OPTOTECH Co.,Ltd. |
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