CN209961993U - Imaging lens and imaging device - Google Patents
Imaging lens and imaging device Download PDFInfo
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- CN209961993U CN209961993U CN201920993501.2U CN201920993501U CN209961993U CN 209961993 U CN209961993 U CN 209961993U CN 201920993501 U CN201920993501 U CN 201920993501U CN 209961993 U CN209961993 U CN 209961993U
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Abstract
The utility model provides an imaging lens and imaging device. The imaging lens comprises a front group lens group with positive focal power and a rear group lens group with positive focal power, which are sequentially arranged from an object side to an image side along an optical axis, and further comprises a diaphragm positioned in the rear group lens group, wherein the rear group lens group is of a double-gauss lens structure and comprises a first lens group positioned at the object side end of the diaphragm and a second lens group positioned at the image side end of the diaphragm; the imaging lens satisfies the conditional expression: 1.7<Ff/F is less than or equal to 6, wherein F represents the focal length of the imaging lens, and FfThe composite focal length of the front group lens group is shown. The imaging apparatus includes an imaging lens. Therefore, the imaging lens and the imaging equipment have the F value of 1.4-2.0And a 20-35 degree angle of view, and has a small volume, a light weight, a large caliber and excellent imaging performance.
Description
Technical Field
The utility model relates to an optical imaging technical field especially relates to an imaging lens and imaging device.
Background
The size of the field angle determines the field range of the optical instrument, the larger the field angle is, the larger the field is, and the smaller the optical magnification is, so that the target object beyond the angle cannot be captured in the lens. An imaging lens having a field angle of 20 ° to 35 ° is generally called a standard portrait lens, and is widely demanded for capturing a portrait by blurring objects outside the field angle and highlighting people and objects within the field angle.
The existing standard portrait lens with large F value generally adopts triple lens structure, and for the standard lens with large aperture and F value smaller than 2, it usually adopts double gauss structure. However, the double-gauss lens is of a symmetrical structure, so that the Petzten value is large, and the whole lens is too large and heavy, so that the carrying is not facilitated.
SUMMERY OF THE UTILITY MODEL
To the not enough among the prior art, the utility model provides an imaging lens and imaging device, its volume is light, the bore is big to have excellent imaging performance, can be applicable to in multiple type cameras such as camera, digital camera, the broadcasting camera that have interchangeable lens.
Therefore, the purpose of the utility model is realized by the following technical scheme:
an imaging lens comprises a front group lens group with positive focal power and a rear group lens group with positive focal power, which are sequentially arranged from an object side to an image side along an optical axis, and further comprises a diaphragm positioned in the rear group lens group, wherein the rear group lens group is of a double-gauss lens structure and comprises a first lens group positioned at an object side end of the diaphragm and a second lens group positioned at an image side end of the diaphragm;
the imaging lens meets the following conditional expression:
1.7<Ff/F≤6，
wherein F represents the focal length of the imaging lens, FfRepresenting the composite focal length of the front group lens group.
As said becomeIn a further alternative of the image lens, the front group lens group includes at least two continuous biconcave negative lenses, and the refractive index n of light with the wavelength of 587.6nm on the two biconcave negative lensesdThe following conditional expressions are satisfied:
1.64≤nd≤1.8。
as a further optional scheme of the imaging lens, the front group lens group includes at least two continuous biconcave negative lenses, and the abbe number v of the light with the wavelength of 587.6nm on the two biconcave negative lensesdThe following conditional expressions are satisfied:
28≤νd≤42。
as a further optional solution of the imaging lens, the front group lens group further includes a cemented lens group located on an image side surface, the cemented lens group includes a positive lens, and the abbe number v of the light with the wavelength of 587.6nm on the positive lensdThe following conditional expressions are satisfied:
60≤νd≤81。
as a further alternative of the imaging lens, a composite focal length F of the rear group lens groupbThe following conditional expressions are satisfied:
0.7＜Fb/F＜1.2。
as a further alternative of the imaging lens, the first lens group and the second lens group adopt opposite concave symmetrical structures.
As a further alternative of the imaging lens, the rear group lens group is movably disposed along an optical axis of the imaging lens to adjust a focal length of the imaging lens.
As a further alternative of the imaging lens, a distance B between a lens surface closest to the image side in the imaging lens and the image planefThe following conditional expressions are satisfied:
0.5<Bf/F<0.8。
as a further extension to the above technical solution: the utility model also provides an imaging device, including foretell any kind of imaging lens.
As a further optional solution of the imaging device, the imaging device further includes a quick return mirror, a focusing screen, a pentagonal roof prism, an eyepiece lens, and a photosensitive drum.
The utility model discloses an imaging lens and imaging device have following beneficial effect at least:
by reasonably setting the focal power of the front group lens group, the spherical aberration of the imaging lens can be limited within a certain range, better imaging can be achieved, the size of the front group lens group can be reduced, and the weight of the whole imaging lens can be reduced. The diaphragm is arranged in the rear group lens group, and the rear group lens group is arranged to be of a double-gauss structure, so that the imaging lens and the imaging equipment are ensured to have an F value of 1.4-2.0 and a field angle of 20-35 degrees. The imaging lens and the imaging device are small in size, light in weight, large in caliber and excellent in imaging performance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic diagram illustrating a cross-sectional structure of an imaging lens provided in embodiment 1 of the present invention along an optical axis;
fig. 2 is a schematic diagram illustrating spherical aberration of an imaging lens provided in embodiment 1 of the present invention when focusing at infinity;
fig. 3 shows an astigmatism schematic diagram of an imaging lens provided in embodiment 1 of the present invention at infinity focusing;
fig. 4 is a schematic diagram illustrating a cross-sectional structure of an imaging lens provided in embodiment 2 of the present invention along an optical axis;
fig. 5 is a schematic diagram illustrating spherical aberration of an imaging lens provided in embodiment 2 of the present invention when focusing at infinity;
fig. 6 shows an astigmatism schematic diagram of an imaging lens provided in embodiment 2 of the present invention at infinity focusing;
fig. 7 is a schematic diagram illustrating a cross-sectional structure of an imaging lens provided in embodiment 3 of the present invention along an optical axis;
fig. 8 is a schematic diagram illustrating spherical aberration of an imaging lens provided in embodiment 3 of the present invention when focusing at infinity;
fig. 9 shows an astigmatism schematic diagram of an imaging lens provided in embodiment 3 of the present invention at infinity focusing;
fig. 10 shows a schematic structural diagram of an image forming apparatus provided in embodiment 4 of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
The present invention will be described in further detail below with reference to the following examples and accompanying drawings:
the utility model discloses an imaging lens includes from the thing side to the image side along the front group lens group that has positive focal power and the back group lens group that has positive focal power that the optical axis disposes in order. The imaging lens further comprises a diaphragm positioned in the rear group lens group, and the rear group lens group is of a double-gauss lens structure and comprises a first lens group positioned at the object side end of the diaphragm and a second lens group positioned at the image side end of the diaphragm.
The imaging lens satisfies the following conditional expression (1):
1.7<Ff/F≤6 (1)
wherein F denotes a focal length of the imaging lens, and FfThe composite focal length of the front group lens group is shown.
The conditional expression (1) can limit the spherical aberration of the imaging lens within a certain range by reasonably setting the focal power of the front group lens group, so as to obtain better imaging. Meanwhile, the size of the front group lens group can be reduced, the weight of the whole imaging lens is reduced, and the imaging lens becomes an imaging lens with small volume, light weight, large caliber and excellent imaging performance.
The conditional expression (1) defines the focal length range of the front group lens group, thereby specifying the incident angle and the entrance pupil position of the light rays of the front group lens group, and within the range of the conditional expression (1), the entrance pupil position is closer to the object side, and the entrance pupil size is smaller.
If Ffif/F exceeds the lower limit of the formula (1), the spherical aberration is easily insufficiently corrected, which is disadvantageous to the overall imaging performance of the imaging lens. If Ffif/F exceeds the upper limit of equation (1), the spherical aberration is easily overcorrected, and the sharpness of the lens is also affected.
When the conditional expression (1) satisfies the following range, more preferable results can be expected,
3<Ff/F≤4.8 (1a)
further improvement in image forming performance is achieved by satisfying the range specified by the conditional expression (1 a).
The imaging lens has an F value of 1.4-2.0 and a field angle of 20-35 degrees, can be used as a standard portrait lens, and can be suitably used in a camera with an interchangeable lens, a video camera, a digital camera, a broadcasting camera, and the like.
In addition, the front group lens group comprises at least two continuous double-concave negative lenses, and the two double-concave negative lenses are made of materials which satisfy the following conditional expression (2):
1.64≤nd≤1.8 (2)
wherein n isdDefined as the refractive index of the medium with respect to light of wavelength 587.6 nm.
The refractive power of the front group lens group is controlled within a reasonable range by reasonably setting the range of the refractive index of the two biconcave negative lenses. If n isdIf the upper limit of the formula (2) is exceeded, the negative focal power of the front group lens assembly is too large, and the number of required positive lens pieces is too large, so that the focal length of the front group lens assembly is balanced, and the system convenience is poor. If n isdIf the refractive index exceeds the lower limit of the formula (2), the negative refractive power is insufficient, the aberrations of the front group lens group are not easily balanced, and the imaging performance is low.
When the conditional expression (2) satisfies the following range, more preferable results can be expected,
1.68≤nd≤1.74 (2a)
further improvement in image forming performance is achieved by satisfying the range specified by the conditional expression (2 a).
In addition, the two biconcave negative lenses are made of materials which satisfy the following conditional expression (3):
28≤νd≤42 (3)
wherein, vdDefined as the abbe number of the medium with respect to light of wavelength 587.6 nm.
The position chromatic aberration of the imaging lens is controlled within a certain range by reasonably setting the range of the Abbe number of the two biconcave negative lenses. V ifdIf the dispersion of the negative lens is too small, the correction of the positional chromatic aberration is insufficient and the imaging performance of the system is low when the dispersion exceeds the upper limit of the formula (3). V ifdIf the dispersion of the negative lens is too large when the lower limit of the formula (3) is exceeded, the correction of the positional chromatic aberration becomes excessive, and the imaging performance of the system becomes low.
When the conditional expression (3) satisfies the following range, more preferable results can be expected,
34≤νd≤40 (3a)
further improvement in image forming performance is achieved by satisfying the range specified by the conditional expression (3 a).
In addition, the front group lens group also comprises a cemented lens group positioned on the image side surface, the cemented lens group comprises a positive lens, and the Abbe number v of the light with the wavelength of 587.6nm on the positive lensdThe following conditional formula (4) is satisfied:
60≤νd≤81 (4)
the conditional expression (4) limits the material requirement of the positive lens in the cemented lens group, and controls the position chromatic aberration and the magnification chromatic aberration of the imaging lens within a certain range. V ifdWhen the dispersion of the positive lens exceeds the upper limit of the formula (4), the dispersion of the positive lens is too large, which is not beneficial to the correction of the position chromatic aberration and the magnification chromatic aberration of the whole imaging lens, and the imaging performance of the imaging lens is low. V ifdWhen the lower limit of the formula (4) is exceeded, the partial dispersion of the positive lensToo small, insufficient secondary spectral correction, and also poor system imaging performance.
When the conditional expression (4) satisfies the following range, more preferable results can be expected,
72≤νd≤76 (4a)
further improvement in image forming performance is achieved by satisfying the range defined by the conditional expression (4 a).
Further, a distance B between a lens surface closest to the image side in the imaging lens and the image planefThe following conditional formula (5) is satisfied:
0.5<Bf/F<0.8 (5)
the imaging lens satisfying the conditional expression (5) has high optical performance, and simultaneously can ensure that the rear intercept of the imaging lens is suitable for the rear intercept of an interchangeable lens of a single-lens reflex camera and a photocopy lens.
If B isfif/F exceeds the lower limit of formula (5), the back intercept of the imaging lens becomes too short with respect to the focal length of the imaging lens, so that it becomes difficult to obtain an imaging lens suitable for use in an interchangeable lens for a single-lens reflex camera and a photocopy lens, and is therefore not preferable. On the other hand, if Bfif/F exceeds the upper limit of formula (5), the back intercept of the imaging lens becomes relatively too long with respect to the focal length of the imaging lens, the refractive power distribution becomes further away from the symmetric type, and therefore it is difficult to correct distortion and high optical performance cannot be achieved, and therefore it is not preferable.
The rear group lens group is movably arranged along the optical axis of the imaging lens to adjust the focal length of the imaging lens, and when the rear group lens group moves, the rear group lens group moves to enable BfThe change that occurs should be able to satisfy equation (5).
When the conditional expression (5) satisfies the following range, more preferable results can be expected,
0.6<Bf/F<0.7 (5a)
further improvement in image forming performance is achieved by satisfying the range defined by the conditional expression (5 a).
In addition, the rear group lens group is a double-gauss lens structure, in which, on both sides of the diaphragm,namely, the first lens group and the second lens group adopt opposite concave symmetrical structures, and the total focal length F of the rear group lens groupbThe following conditional formula (6) is satisfied:
0.7＜Fb/F＜1.2 (6)
the conditional expression (6) can easily satisfy the requirements of a long focal length and a long back intercept by appropriately setting the focal power of the rear group lens group. If Fbif/F exceeds the lower limit of the formula (6), the focal power of the rear group lens group is too large, which is not favorable for realizing long rear intercept on the premise of large caliber, and the use of the imaging equipment cannot be met. If Fbif/F exceeds the upper limit of the formula (6), the focal power of the rear group lens group is too small, which is disadvantageous in downsizing the imaging lens.
When the conditional expression (6) satisfies the following range, more preferable results can be expected,
0.9＜Fb/F＜1.1 (6a)
further improvement in image forming performance is achieved by satisfying the range defined by the conditional expression (6 a).
The utility model also provides an imaging device, including foretell imaging lens.
Above-mentioned, the utility model provides an imaging lens and imaging device that small, light in weight, bore are big, imaging performance is excellent and the suitability is good.
Hereinafter, an imaging lens according to a specific embodiment of the present invention and numerical examples applied to the embodiments are described with reference to the drawings and tables.
It is noted that the symbols used in the table and the following description are as follows:
"i" represents a surface number; ' ri"is the radius of curvature; ' di"is the distance on the optical axis between the ith surface and the (i + 1) th surface; "n" isd"is the refractive index; v isi"is Abbe number. The refractive index and Abbe number are those with respect to the d-line (wavelength 587.6 nm). With respect to the surface number, "∞" indicates that the surface is planar. The length unit is mm, and the unit thereof will be omitted.
Example 1
Fig. 1 shows a schematic cross-sectional structure of the imaging lens of the present embodiment along the optical axis.
The imaging lens includes a front group lens group Gf having positive power and a rear group lens group Gb having positive power, which are arranged in order along an optical axis from an object side to an image side. The imaging lens further comprises a diaphragm SP positioned in the rear group lens group, and the rear group lens group Gf is of a double-gauss lens structure and comprises a first lens group G11 positioned at the object side end of the diaphragm SP and a second lens group G12 positioned at the image side end of the diaphragm SP. The front group lens group Gf has at least two negative lenses and further includes a cemented lens.
The front group lens group Gf is configured as follows: a positive lens L11, a negative lens L12, a negative lens L13, a positive lens L14, a cemented lens Gj1, which are arranged in order from the object side to the image side, the cemented lens Gj1 including a positive lens L15 and a negative lens L16 cemented with each other. The negative lens L12 and the negative lens L13 are both biconcave negative lenses; the positive lens L15 is a biconvex positive lens.
The first lens group G11 is constituted by: a positive lens L21, a positive lens L22, and a negative lens L23, which are arranged in order from the object side to the image side.
The second lens group G12 is constituted by: a cemented lens Gj2, a negative lens L31, and a negative lens L32 arranged in order from the object side to the image side. In the present embodiment, the cemented lens Gj2 is constituted by negative lenses L33, L34.
The opposing surfaces of the negative lens L23 and the negative lens L33 are symmetrically concave surfaces.
Further, a parallel glass plate GL configured by a kind of filter is arranged between the rear group lens group Gb, specifically, the negative lens L32 and the image surface IMG. The back intercept is the distance from the image plane side of the negative lens L32 to the image surface IMG. Wherein the parallel glass plate GL can be changed to air.
The following table is basic data of the imaging lens, in which the surface SiThe imaging lens has a surface of lenses arranged in order from an object plane to an image plane.
Fig. 2 and 3 are aberration diagrams illustrating the imaging lens according to the present embodiment at infinity focus.
FIG. 2 shows a diagram of spherical aberration, with the F-, d-and C-lines representing spherical aberration at the F-line (wavelength 486nm), d-line (wavelength 588nm) and C-line (wavelength 656 nm); fig. 3 shows a schematic diagram of astigmatism, where a solid line S indicates a value of a principal ray d on a sagittal image surface, and a solid line T indicates a value of the principal ray d on a meridional image surface. The above description about the various aberration graphs is the same as the other examples and will not be repeated hereinafter.
As can be seen from the figure, the imaging lens has excellent imaging effect.
Example 2
Fig. 4 shows a cross-sectional view along the optical axis of the structure of the imaging lens of the present embodiment.
The present embodiment is different from embodiment 1 in the lens composition and lens parameters of the imaging lens.
The front group lens group Gf is configured as follows: a positive lens L11, a negative lens L12, a negative lens L13, a positive lens L14, a cemented lens Gj1, which are arranged in order from the object side to the image side, the cemented lens Gj1 including a positive lens L15 and a negative lens L16 cemented with each other. The first lens group G11 is constituted by: a positive lens L21, a positive lens L22, and a negative lens L23, which are arranged in order from the object side to the image side.
The second lens group G12 is constituted by: a cemented lens Gj2 and a negative lens L31 arranged in order from the object side to the image side. In the present embodiment, the cemented lens Gj2 is constituted by negative lenses L32, L33.
The opposing surfaces of the negative lens L23 and the negative lens L32 are symmetrically concave surfaces.
The following table is basic data of the imaging lens, in which the surface SiThe imaging lens is arranged on the surface of the lens from the object plane to the image plane in sequence.
Fig. 5 and 6 are aberration diagrams illustrating the imaging lens according to the present embodiment at infinity focus.
As can be seen from the figure, the imaging lens has excellent imaging effect.
Example 3
Fig. 7 shows a cross-sectional view along the optical axis of the structure of the imaging lens of the present embodiment.
The present embodiment is different from embodiment 1 in the lens composition and lens parameters of the imaging lens.
The front group lens group Gf is configured as follows: a positive lens L11, a negative lens L12, a negative lens L13, a positive lens L14, a cemented lens Gj1, which are arranged in order from the object side to the image side, the cemented lens Gj1 including a positive lens L15 and a negative lens L16 cemented with each other.
The first lens group G11 is constituted by: a positive lens L21, a positive lens L22, and a negative lens L23, which are arranged in order from the object side to the image side.
The second lens group G12 is constituted by: a cemented lens Gj2 and a negative lens L31 arranged in order from the object side to the image side. The cemented lens Gj2 is composed of negative lenses L32 and L33.
The opposing surfaces of the negative lens L23 and the negative lens L32 are symmetrically concave surfaces.
The following table is basic data of the imaging lens, in which the surface Si is a surface of a lens in which the imaging lens is arranged in order from the object plane to the image plane.
Fig. 8 and 9 are aberration diagrams illustrating the imaging lens according to the present embodiment at infinity focus.
As can be seen from the figure, the imaging lens has excellent imaging effect.
Example 4
Fig. 10 is a schematic view showing an application of an imaging lens to an imaging apparatus to which any of the imaging lenses of embodiments 1 to 3 can be applied.
The imaging apparatus includes an imaging lens 10 and a camera body 20. The optical system 1 (lens group) is held by a lens barrel 2 as a holding member to form an imaging lens 10. The camera body 20 includes a quick return mirror 3 that reflects a light beam from the imaging lens 10 upward, and a focusing screen 4 disposed at an image forming position of the imaging lens 10. The camera body 20 further includes a pentagonal roof prism 5 that converts the inverted image formed on the focusing screen 4 into an erect image, an eyepiece lens 6 that forms an enlarged erect image, and a light-sensing sheet 7. A solid-state image sensor (photoelectric conversion element) such as a CCD sensor or a CMOS sensor or a silver halide film is disposed on the photosensitive sheet. During photographing, the quick return mirror 3 is retracted from the optical path, and an image is formed on the photosensitive surface 7 by the imaging lens 10.
In other embodiments, the imaging lens 10 may be applied to various image capturing apparatuses such as a projector, a TV camera, and the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. An imaging lens is characterized by comprising a front group lens group with positive focal power and a rear group lens group with positive focal power, which are sequentially arranged from an object side to an image side along an optical axis, and further comprising a diaphragm positioned in the rear group lens group, wherein the rear group lens group is of a double-gauss lens structure and comprises a first lens group positioned at an object side end of the diaphragm and a second lens group positioned at an image side end of the diaphragm;
the imaging lens meets the following conditional expression:
1.7<Ff/F≤6，
wherein F represents the focal length of the imaging lens, FfRepresenting the composite focal length of the front group lens group.
2. The imaging lens assembly according to claim 1, wherein the front group lens group comprises at least two continuous biconcave negative lenses, and the refractive index n of light with the wavelength of 587.6nm on the two biconcave negative lensesdThe following conditional expressions are satisfied:
1.64≤nd≤1.8。
3. the imaging lens assembly of claim 1 wherein the front group lens assembly comprises at least two consecutive biconcave negative lenses, and the abbe number v of light with a wavelength of 587.6nm is on the two biconcave negative lensesdThe following conditional expressions are satisfied:
28≤νd≤42。
4. an imaging lens according to claim 2 or 3, wherein the front group lens group further comprises a cemented lens group on an image side surface, the cemented lens group comprises a positive lens, and the Abbe number v of light with a wavelength of 587.6nm on the positive lensdThe following conditional expressions are satisfied:
60≤νd≤81。
5. the imaging lens according to claim 1, wherein a composite focal length F of the rear group lens groupbThe following conditional expressions are satisfied:
0.7＜Fb/F＜1.2。
6. the imaging lens according to claim 2, wherein the first lens group and the second lens group adopt an opposing concave symmetrical structure.
7. The imaging lens according to claim 1, wherein the rear group lens group is movably disposed along an optical axis of the imaging lens to adjust a focal length of the imaging lens.
8. The imaging lens according to claim 1, wherein a distance B between a lens surface closest to the image side in the imaging lens and an image planefThe following conditional expressions are satisfied:
0.5<Bf/F<0.8。
9. an imaging apparatus characterized by comprising the imaging lens according to any one of claims 1 to 8.
10. The imaging apparatus of claim 9, further comprising a fast return mirror, a focusing screen, a pentagonal roof prism, an eyepiece lens, and a light sensing sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201920993501.2U CN209961993U (en) | 2019-06-27 | 2019-06-27 | Imaging lens and imaging device |
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| CN201920993501.2U CN209961993U (en) | 2019-06-27 | 2019-06-27 | Imaging lens and imaging device |
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| CN209961993U true CN209961993U (en) | 2020-01-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161660A (en) * | 2019-06-27 | 2019-08-23 | 深圳市永诺摄影器材股份有限公司 | A kind of imaging lens and imaging device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161660A (en) * | 2019-06-27 | 2019-08-23 | 深圳市永诺摄影器材股份有限公司 | A kind of imaging lens and imaging device |
| CN110161660B (en) * | 2019-06-27 | 2023-10-13 | 深圳市永诺电器有限公司 | Imaging lens and imaging equipment |
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