CN108469666A - A kind of achievable visible light and near infrared light confocal camera lens and its imaging method - Google Patents
A kind of achievable visible light and near infrared light confocal camera lens and its imaging method Download PDFInfo
- Publication number
- CN108469666A CN108469666A CN201810278023.7A CN201810278023A CN108469666A CN 108469666 A CN108469666 A CN 108469666A CN 201810278023 A CN201810278023 A CN 201810278023A CN 108469666 A CN108469666 A CN 108469666A
- Authority
- CN
- China
- Prior art keywords
- lens
- power
- negative
- tortuous power
- positive
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/005—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having spherical lenses only
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/025—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using glue
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
The present invention relates to a kind of achievable visible light and near infrared light confocal camera lens and its imaging method, include successively by object side to image side object plane, preceding group, diaphragm, rear group；The described preceding group cemented doublet by the first lens, the second lens with positive tortuous power, the third lens with negative tortuous power, the 4th lens with negative tortuous power, the 5th lens with positive tortuous power and the 6th lens contiguity with negative tortuous power that object side to image side includes with negative tortuous power successively, wherein the 5th lens are located at the object side of cemented doublet, and the 6th lens are located at the image side of cemented doublet；Group includes the 7th lens with positive tortuous power, the 8th lens with negative tortuous power, the 9th lens with positive tortuous power, the tenth lens with positive tortuous power successively by object side to image side after described.The present invention can not only will be seen that light and near infrared light blur-free imaging in same image planes, and system bulk reduces, and complexity and cost have reduction.
Description
Technical field
The present invention relates to a kind of achievable visible lights and the confocal camera lens of near infrared light and its imaging method, belong to photoelectronic imaging
Technical field.
Background technology
Identify that field, finger print add the composite identification method of finger vena to be used widely in biological multimode.Because referring to
The acquisition of print image and vein image needs visible light and two kinds of light sources of near infrared light, most camera lenses that cannot meet Polaroid want
It asks.Existing market generally uses the method that story board is acquired or is repeatedly imaged, and increases the complexity of acquisition system.
Invention content
The present invention has made improvements in view of the above-mentioned problems of the prior art, i.e., the technical problem to be solved by the present invention is to
A kind of achievable visible light and the confocal camera lens of near infrared light and its imaging method are provided, can not only will be seen that light and near infrared light
Blur-free imaging is in same image planes, and system bulk reduces, and complexity and cost have reduction.
In order to solve the above-mentioned technical problem, the technical scheme is that：It is confocal near infrared light that visible light can be achieved
Camera lens, by object side to image side successively include object plane, preceding group, diaphragm, rear group；Described preceding group includes having successively by object side to image side
First lens of negative complications power, the third lens with negative tortuous power, have negative complications power at the second lens with positive tortuous power
The 4th lens, the cemented doublet that touches with the 6th lens with negative tortuous power of the 5th lens with positive tortuous power,
In the 5th lens be located at the object side of cemented doublet, the 6th lens are located at the image side of cemented doublet；It is described after group by object side extremely
Image side includes the 7th lens with positive tortuous power, the 8th lens with negative tortuous power, the with positive tortuous power the 9th successively
Lens, the tenth lens with positive tortuous power.
Further, the airspace between the first lens and the second lens is between 3-4mm；Second lens and third are saturating
Airspace between mirror is between 0.1-0.3mm；Airspace between the third lens and the 4th lens is between 1-2mm；
Airspace between 4th lens and the 5th lens is between 0.1-0.2mm；Pair of 5th lens and the 6th lens contiguity
Gluing unit is to the airspace of diaphragm between 1-2mm；Airspace between diaphragm and the 7th lens 0.1-0.3mm it
Between；Airspace between 7th lens and the 8th lens is between 0.2-0.4mm；Sky between 8th lens and the 9th lens
Gas is spaced between 0.5-0.7mm；Airspace between 9th lens and the tenth lens is between 0.1-0.3mm；Tenth thoroughly
Airspace between mirror and image planes is between 12-13mm.
Further, the field angle of the camera lens is 33.4 degree.
Further, half image height of the camera lens is y, focal length EFL, meets 0.2<y/EFL<0.5；After the camera lens
Intercept is BFL, meets BFL/EFL>1；The overall length of the camera lens is TTL, meets TTL/EFL<5.
Further, the FNO of the camera lens<2.5, wherein FNO are the ratio of system focal length value f ' and system clear aperature D
Value.
Further, the focal length value of the camera lens is EFL, and the focal length value for the second lens organized before described is F2, and the tenth thoroughly
The focal length value of mirror is F10, meets 1<F2/EFL<3,1<F10/EFL<2.
Further, all lens of the camera lens are spheric glass, and diaphragm is aperture diaphragm.
The imaging method that visible light and the confocal camera lens of near infrared light can be achieved, using anti-long distance system structure, preceding group of tool
There is negative power, rear group has positive light coke；The incident ray inclination angle of the outer wide-angle of preceding group of reduction axis, make rear group undertake it is smaller
Visual field with the aberration correction of sharp follow-up constituent element；Preceding group there are the lens of negative tortuous power to bend towards diaphragm, introduce larger diaphragm
Coma increases the entrance pupil diameter of the outer visual field of axis to improve the illumination of off-axis image point, improve the uniformity of illuminance of image plane distribution.
Further, on chromatic aberration correction, using the combination of the material of different abbe numbers in terms of material；In structure side
Face, using cemented doublet, and positive lens uses low-dispersion material, negative lens to use high chromatic dispersion material in cemented doublet.
Further, light beam is successively by preceding group of the first lens with negative tortuous power, second with positive tortuous power
Lens, the third lens with negative tortuous power and the 4th lens with negative tortuous power and by the 5th lens with positive tortuous power
After the refraction of double agglutination lens group made of the 6th lens contiguity with negative tortuous power, rear group of field angle is reduced,
Aperture increases, the light beam of subsequent large aperture pass through the 7th lens, the tool with positive tortuous power organized later with smaller angle successively
After having the 8th lens and the 9th lens with positive tortuous power and the tenth lens with positive tortuous power of negative tortuous power, correct
Preceding group of remaining aberration, and light is converged in into progress blur-free imaging at work image planes.
Compared with prior art, the invention has the advantages that：It can not only will be seen that light is clear near infrared light
Same image planes are imaged on, and system bulk reduces, complexity and cost have reduction；Using spheric glass, difference is utilized
The combination of glass overcomes effect of dispersion to make the light blur-free imaging of visible light and near infrared band in same image planes, without adjusting
Coke, system structure is compact, high resolution, and distortion is small, is ensureing that the while of being imaged image quality reduces production cost.
Description of the drawings
Fig. 1 is the lens optical system schematic diagram of the embodiment of the present invention；
Fig. 2 is MTF curve figure of the camera lens in visible light wave range of the embodiment of the present invention；
Fig. 3 is MTF curve figure of the camera lens near infrared light wave band of the embodiment of the present invention；
Fig. 4 is curvature of field distortion figure of the camera lens in visible light wave range of the embodiment of the present invention；
Fig. 5 is curvature of field distortion figure of the camera lens near infrared light wave band of the embodiment of the present invention.
In figure：Group before 1-, the first lens of 11-, the second lens of 12-, 13- the third lens, the 4th lens of 14-, 15- the 5th are saturating
Mirror, the 6th lens of 16-, 2- diaphragms, group after 3-, the 7th lens of 31-, the 8th lens of 32-, the 9th lens of 33-, the tenth lens of 34-,
4- image planes.
Specific implementation mode
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Visible light and the confocal camera lens of near infrared light can be achieved, include successively by object side to image side object plane, preceding group, diaphragm,
Group afterwards；Described preceding group by the first lens that object side to image side includes with negative tortuous power successively, second with positive tortuous power thoroughly
Mirror, the third lens with negative tortuous power, the 4th lens with negative tortuous power, the 5th lens with positive tortuous power and have
The cemented doublet of the 6th lens contiguity of negative complications power, wherein the 5th lens are located at the object side of cemented doublet, the 6th lens
Positioned at the image side of cemented doublet；Group includes the 7th lens with positive tortuous power successively by object side to image side, has after described
8th lens of negative complications power, the 9th lens with positive tortuous power, the tenth lens with positive tortuous power.
Further, the airspace between the first lens and the second lens is between 3-4mm；Second lens and third are saturating
Airspace between mirror is between 0.1-0.3mm；Airspace between the third lens and the 4th lens is between 1-2mm；
Airspace between 4th lens and the 5th lens is between 0.1-0.2mm；Pair of 5th lens and the 6th lens contiguity
Gluing unit is to the airspace of diaphragm between 1-2mm；Airspace between diaphragm and the 7th lens 0.1-0.3mm it
Between；Airspace between 7th lens and the 8th lens is between 0.2-0.4mm；Sky between 8th lens and the 9th lens
Gas is spaced between 0.5-0.7mm；Airspace between 9th lens and the tenth lens is between 0.1-0.3mm；Tenth thoroughly
Airspace between mirror and image planes is between 12-13mm.
Further, the field angle of the camera lens is 33.4 degree.
Further, half image height of the camera lens is y, focal length EFL, meets 0.2<y/EFL<0.5；After the camera lens
Intercept is BFL, meets BFL/EFL>1；The overall length of the camera lens is TTL, meets TTL/EFL<5.
Further, the FNO of the camera lens<2.5, wherein FNO are the ratio of system focal length value f ' and system clear aperature D
Value, i.e. system F numbers.
Further, the focal length value of the camera lens is EFL, and the focal length value for the second lens organized before described is F2, and the tenth thoroughly
The focal length value of mirror is F10, meets 1<F2/EFL<3,1<F10/EFL<2.
Further, all lens of the camera lens are spheric glass, and diaphragm is aperture diaphragm.
The imaging method that visible light and the confocal camera lens of near infrared light can be achieved, using anti-long distance system structure, preceding group of tool
There is negative power, rear group has positive light coke；The incident ray inclination angle of the outer wide-angle of preceding group of reduction axis, make rear group undertake it is smaller
Visual field with the aberration correction of sharp follow-up constituent element；Preceding group there are the lens of negative tortuous power to bend towards diaphragm, introduce larger diaphragm
Coma increases the entrance pupil diameter of the outer visual field of axis to improve the illumination of off-axis image point, improve the uniformity of illuminance of image plane distribution.
Further, on chromatic aberration correction, using the combination of the material of different abbe numbers in terms of material；In structure side
Face, using cemented doublet, and positive lens uses low-dispersion material, negative lens to use high chromatic dispersion material in cemented doublet.
Further, light beam is successively by preceding group of the first lens with negative tortuous power, second with positive tortuous power
Lens, the third lens with negative tortuous power and the 4th lens with negative tortuous power and by the 5th lens with positive tortuous power
After the refraction of double agglutination lens group made of the 6th lens contiguity with negative tortuous power, rear group of field angle is reduced,
Aperture increases, the light beam of subsequent large aperture pass through the 7th lens, the tool with positive tortuous power organized later with smaller angle successively
After having the 8th lens and the 9th lens with positive tortuous power and the tenth lens with positive tortuous power of negative tortuous power, correct
Preceding group of remaining aberration, and light is converged in into progress blur-free imaging at work image planes.
As shown, as shown in Figure 1, in the present embodiment optical surface serial number from the convex surface of the first lens A-1 be the first face,
Start incremented by successively from left to right, the data such as following table of confocal camera lens：
| Optical surface | Radius mm | Thickness mm | Refractive index | Abbe number |
| 1 | 30.860 | 3.55 | 1.60 | 39.2 |
| 2 | 9.442 | 3.10 | ||
| 3 | 17.106 | 2.22 | 1.65 | 39.1 |
| 4 | -23.379 | 0.1 | ||
| 5 | 8.806 | 4.11 | 1.56 | 54.0 |
| 6 | 3.682 | 1.73 | ||
| 7 | -7.873 | 1.84 | 1.56 | 54.2 |
| 8 | -48.820 | 0.1 | ||
| 9 | 40.201 | 4.79 | 1.62 | 63.5 |
| 10 | -3.664 | 0.79 | 1.61 | 44.3 |
| 11 | -26.651 | 1.53 | ||
| 12 | Infinity | 0.1 | ||
| 13 | 40.496 | 4.63 | 1.69 | 49.7 |
| 14 | -10.634 | 0.26 | ||
| 15 | -99.268 | 1.20 | 1.72 | 29.6 |
| 16 | 8.539 | 0.66 | ||
| 17 | 24.948 | 1.02 | 1.60 | 39.2 |
| 18 | -45.235 | 0.1 | ||
| 19 | 8.947 | 1.86 | 1.57 | 71.2 |
| 20 | -44.329 | 12.5 | ||
| IMA | infinity | - |
In the present embodiment, the first lens are diverging meniscus lens, and the second lens are biconvex lens, and the third lens and the 4th lens are equal
For diverging meniscus lens, the 5th lens are positive lens, and the 6th lens are diverging meniscus lens, the 7th lens be biconvex lens, the 8th thoroughly
Mirror is bent moon negative lens, and the 9th lens and the tenth lens are biconvex lens.
In the present embodiment, it is seen that light and the confocal lens focus EFL=10mm of near infrared light, the maximum clear aperature F of camera lens
Number is 2.3.
In the present embodiment, " CMOS is adapted to camera lens and 1/3, and half image height is y=3mm, and y/EFL=0.3 meets 0.2<y/EFL<
0.5.
In the present embodiment, rear cout off distance BFL=12.5mm, BFL/EFL=1.25 meet BFL/EFL>1.
In the present embodiment, overall length TTL=46.5 of camera lens, TTL/EFL=4.65 meet TTL/EFL<5.
In the present embodiment, focal length value F2=15.53 of the second lens A-2 of the preceding group A, the 4th that C is organized after described are saturating
Focal length value F4=13.25 of mirror, F2/EFL=1.553, F4/EFL=1.325 meet 1<F2/EFL<3,1<F4/EFL<2
In the present embodiment, as shown in Figure 2 and Figure 3,200lp/mm of the camera lens MTF curve in visible light wave range and near infrared band
Place is more than 0.4, high resolution, and image quality is preferable.
In the present embodiment, as shown in Figure 4, Figure 5, the distortion of camera lens is respectively less than 1%, meets imaging requirements.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification should all belong to the covering scope of the present invention.
Claims (10)
1. a kind of achievable visible light and the confocal camera lens of near infrared light, it is characterised in that：Include object successively by object side to image side
Face, preceding group, diaphragm, rear group；Described preceding group by the first lens that object side to image side includes with negative tortuous power successively, there is positive song
Roll over the second lens of power, the third lens with negative tortuous power, the 4th lens with negative tortuous power, the with positive tortuous power
The cemented doublet of five lens and the 6th lens contiguity with negative tortuous power, wherein the 5th lens are located at the object of cemented doublet
Side, the 6th lens are located at the image side of cemented doublet；Group includes the with positive tortuous power successively by object side to image side after described
Seven lens, the 8th lens with negative tortuous power, the 9th lens with positive tortuous power, the tenth lens with positive tortuous power.
2. achievable visible light according to claim 1 and the confocal camera lens of near infrared light, it is characterised in that：First lens
Airspace between the second lens is between 3-4mm；Airspace between second lens and the third lens is in 0.1-
Between 0.3mm；Airspace between the third lens and the 4th lens is between 1-2mm；Between 4th lens and the 5th lens
Airspace between 0.1-0.2mm；Double gluing units of 5th lens and the 6th lens contiguity are to the airspace of diaphragm
Between 1-2mm；Airspace between diaphragm and the 7th lens is between 0.1-0.3mm；7th lens and the 8th lens it
Between airspace between 0.2-0.4mm；Airspace between 8th lens and the 9th lens is between 0.5-0.7mm；
Airspace between 9th lens and the tenth lens is between 0.1-0.3mm；Airspace between tenth lens and image planes
Between 12-13mm.
3. according to claim 1 or 2 can be achieved achievable visible light and the confocal camera lens of near infrared light, feature exists
In：The field angle of the camera lens is 33.4 degree.
4. achievable visible light according to claim 1 or 2 and the confocal camera lens of near infrared light, it is characterised in that：It is described
Half image height of camera lens is y, focal length EFL, meets 0.2<y/EFL<0.5；The rear cut-off distance of the camera lens is BFL, meets BFL/EFL
>1；The overall length of the camera lens is TTL, meets TTL/EFL<5.
5. achievable visible light according to claim 1 or 2 and the confocal camera lens of near infrared light, it is characterised in that：It is described
The FNO of camera lens<2.5, wherein FNO are the ratio of system focal length value f ' and system clear aperature D.
6. achievable visible light according to claim 1 or 2 and the confocal camera lens of near infrared light, it is characterised in that：It is described
The focal length value of camera lens is EFL, and the focal length value for the second lens organized before described is F2, and the focal length value of the tenth lens is F10, meets 1<
F2/EFL<3,1<F10/EFL<2.
7. achievable visible light according to claim 1 or 2 and the confocal camera lens of near infrared light, it is characterised in that：It is described
All lens of camera lens are spheric glass, and diaphragm is aperture diaphragm.
8. the imaging method of a kind of achievable visible light and the confocal camera lens of near infrared light, it is characterised in that：Using anti-long distance system
System structure, preceding group there is negative power, rear group to have positive light coke；The incident ray inclination angle of the outer wide-angle of preceding group of reduction axis,
Rear group is set to undertake smaller visual field with the aberration correction of sharp follow-up constituent element；Preceding group there are the lens of negative tortuous power to bend towards diaphragm,
Larger diaphragm coma is introduced, increases the entrance pupil diameter of the outer visual field of axis and is shone with improving the illumination of off-axis image point, improving image planes
Spend the uniformity of distribution.
9. the imaging method of achievable visible light according to claim 8 and the confocal camera lens of near infrared light, it is characterised in that：
On chromatic aberration correction, using the combination of the material of different abbe numbers in terms of material；In configuration aspects, using cemented doublet,
And positive lens uses low-dispersion material, negative lens to use high chromatic dispersion material in cemented doublet.
10. the imaging method of achievable visible light and the confocal camera lens of near infrared light according to claim 8 or claim 9, feature
It is：Light beam is successively by preceding group of the first lens with negative tortuous power, the second lens with positive tortuous power, with negative song
Roll over the third lens of power and the 4th lens with negative tortuous power and by with positive tortuous power the 5th lens and with negative tortuous
After the refraction of double agglutination lens group made of the 6th lens contiguity of power, rear group of field angle is reduced, aperture increases, then
The light beam of large aperture passes through the 7th lens with positive tortuous power organized later, the with negative tortuous power with smaller angle successively
After eight lens and the 9th lens with positive tortuous power and the tenth lens with positive tortuous power, preceding group of remaining picture is corrected
Difference, and light is converged in into progress blur-free imaging at work image planes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810278023.7A CN108469666A (en) | 2018-03-30 | 2018-03-30 | A kind of achievable visible light and near infrared light confocal camera lens and its imaging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810278023.7A CN108469666A (en) | 2018-03-30 | 2018-03-30 | A kind of achievable visible light and near infrared light confocal camera lens and its imaging method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108469666A true CN108469666A (en) | 2018-08-31 |
Family
ID=63262188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810278023.7A Pending CN108469666A (en) | 2018-03-30 | 2018-03-30 | A kind of achievable visible light and near infrared light confocal camera lens and its imaging method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108469666A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361833A (en) * | 2019-06-17 | 2019-10-22 | 厦门力鼎光电股份有限公司 | A kind of optical imaging lens |
| CN110376715A (en) * | 2019-07-18 | 2019-10-25 | 广东奥普特科技股份有限公司 | A kind of high-res tight shot |
| CN113267873A (en) * | 2020-02-17 | 2021-08-17 | 北京百度网讯科技有限公司 | Imaging lens and imaging device compatible with visible light and near infrared |
| CN113805317A (en) * | 2021-10-18 | 2021-12-17 | 舜宇光学(中山)有限公司 | Fixed focus lens |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207817292U (en) * | 2018-02-09 | 2018-09-04 | 福建师范大学 | The confocal camera lens of visible light near infrared light |
-
2018
- 2018-03-30 CN CN201810278023.7A patent/CN108469666A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207817292U (en) * | 2018-02-09 | 2018-09-04 | 福建师范大学 | The confocal camera lens of visible light near infrared light |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361833A (en) * | 2019-06-17 | 2019-10-22 | 厦门力鼎光电股份有限公司 | A kind of optical imaging lens |
| CN110361833B (en) * | 2019-06-17 | 2024-04-19 | 厦门力鼎光电股份有限公司 | Optical imaging lens |
| CN110376715A (en) * | 2019-07-18 | 2019-10-25 | 广东奥普特科技股份有限公司 | A kind of high-res tight shot |
| CN110376715B (en) * | 2019-07-18 | 2024-03-26 | 广东奥普特科技股份有限公司 | High-resolution prime lens |
| CN113267873A (en) * | 2020-02-17 | 2021-08-17 | 北京百度网讯科技有限公司 | Imaging lens and imaging device compatible with visible light and near infrared |
| CN113805317A (en) * | 2021-10-18 | 2021-12-17 | 舜宇光学(中山)有限公司 | Fixed focus lens |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209690601U (en) | A kind of linear array camera lens | |
| CN108469666A (en) | A kind of achievable visible light and near infrared light confocal camera lens and its imaging method | |
| CN110568594B (en) | Optical imaging lens | |
| CN110412720B (en) | Optical lens | |
| CN112859299A (en) | Fixed focus lens | |
| CN108318995A (en) | A kind of lens system and camera lens | |
| CN112068285B (en) | Wide-angle long-focus imaging optical system | |
| CN110261999A (en) | Optical system and imaging lens | |
| CN114488479A (en) | Large-field-of-view high-resolution industrial lens with front diaphragm | |
| CN111722378A (en) | Large-image-plane high-resolution fisheye lens | |
| CN108845417B (en) | Parallax error eliminating machine vision optical system | |
| CN207817292U (en) | The confocal camera lens of visible light near infrared light | |
| CN110412718B (en) | Optical lens | |
| CN112612115A (en) | Optical imaging lens | |
| CN112269254A (en) | Imaging lens | |
| JP3005905B2 (en) | Shooting lens | |
| CN209400780U (en) | A kind of low Distortion Detect lens optical system of object space telecentricity | |
| CN108983402B (en) | Large aperture lens | |
| CN109188651B (en) | Refractive high-resolution star sensor optical system | |
| CN217112863U (en) | Fixed focus lens | |
| CN214151204U (en) | Optical imaging lens with large image surface | |
| CN112014948B (en) | Long-focus imaging optical system | |
| CN214845994U (en) | Fixed focus lens | |
| CN213780517U (en) | Optical imaging lens | |
| CN210155396U (en) | Optical imaging lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180831 |