CN207764463U - Pick-up lens and electronic device - Google Patents
Pick-up lens and electronic device Download PDFInfo
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- CN207764463U CN207764463U CN201721824830.1U CN201721824830U CN207764463U CN 207764463 U CN207764463 U CN 207764463U CN 201721824830 U CN201721824830 U CN 201721824830U CN 207764463 U CN207764463 U CN 207764463U
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Abstract
The utility model discloses a kind of pick-up lens and electronic devices.Pick-up lens includes successively from object side to image side：First lens；Second lens；The third lens with positive light coke；The 4th lens with negative power；And infrared fileter.Pick-up lens meets conditional：- 6≤f4/F≤- 1；Wherein, F is the effective focal length of pick-up lens, and f4 is the focal length of the 4th lens.Pass through above-mentioned design, pick-up lens disclosure satisfy that high-resolution, extra-thin demand, and due to being provided with infrared fileter (infrared to pass through optical filter) between the 4th lens and imaging surface, to filter out the light of its all band such as visible light, and only allow infrared light by and enter Image Sensor, therefore, pick-up lens can be used as the use of infrared photography camera lens, i.e., pick-up lens can be also imaged under dim environment and other special application scenarios, such as pick-up lens be applied to monitor when, either daytime or evening can obtain preferable image effect.
Description
Technical field
The utility model is related to optical image technology, more particularly to a kind of pick-up lens and electronic device.
Background technology
Traditional pick-up lens need infrared light subsidize environment and special application scenarios under, such as dim environment,
Gesture detecting, temperature sense etc., the image effect of acquisition is bad.
Utility model content
A kind of pick-up lens of the utility model embodiment offer and electronic device.
The pick-up lens of the utility model embodiment includes successively from object side to image side：
First lens；
Second lens；
The third lens with positive light coke；
The 4th lens with negative power；And
Infrared fileter；
The pick-up lens meets conditional：
- 6≤f4/F≤- 1；
Wherein, F is the effective focal length of the pick-up lens, and f4 is the focal length of the 4th lens.
By above-mentioned design, pick-up lens disclosure satisfy that high-resolution, extra-thin demand, and due to the 4th lens with
Infrared fileter (infrared to pass through optical filter) is provided between imaging surface, to filter out the light of its all band such as visible light,
And only allow infrared light by and enter Image Sensor, therefore, pick-up lens can be used as infrared photography camera lens use, that is, camera shooting
Camera lens can be also imaged under dim environment and other special application scenarios, such as pick-up lens is applied to monitor
When, either daytime or evening can obtain preferable image effect.
In some embodiments, there is first lens negative power, second lens to have positive light coke.
In the pick-up lens of the utility model embodiment, since multiple lens with positive light coke and negative power are mixed
Arrangement is closed, demand of the pick-up lens to ultrathin is met, and can ensure that pick-up lens has preferable image quality.
In some embodiments, there is first lens positive light coke, second lens to have negative power.
In the pick-up lens of the utility model embodiment, since multiple lens with positive light coke and negative power are mixed
Arrangement is closed, demand of the pick-up lens to ultrathin is met, and can ensure that pick-up lens has preferable image quality.
In some embodiments, the pick-up lens meets conditional：
1.4≤FNO≤10；
Wherein, FNO is the coke ratio of the pick-up lens.
The pick-up lens of the utility model embodiment can adjust coke ratio in the range of 1.4 to 10.0, may make picture
Difference obtains good correction, further meets the needs of high imaging quality.
In some embodiments, the pick-up lens meets conditional：
1≤TTL/F≤3；
Wherein, TTL is distance on the axis of imaging surface of the object side of first lens to the pick-up lens.
As TTL/F ＜ 1, it is difficult to correct each aberration, especially curvature of the image, distortion aberration；As TTL/F ＞ 3, camera shooting
The overall length of camera lens is long, leads to the whole enlargement of pick-up lens.Meet the above conditions, can preferably correct each aberration, and
It can realize the miniaturization of pick-up lens.
In some embodiments, the pick-up lens meets conditional：
0 f3/F≤5 ＜；
Wherein, f3 is the focal length of the third lens.
Meet the above conditions so that the third lens have proper focal power, to coordinate pick-up lens entirety light
The configuration of focal power keeps susceptibility relatively low, and is conducive to correct aberration caused by the first lens L1 and the second lens L2.
In some embodiments, the pick-up lens meets conditional：
0 L3R2/L3R1≤2.0 ＜；
Wherein, L3R1 is the radius of curvature of the object side of the third lens, and L3R2 is the image side surface of the third lens
Radius of curvature.
Meet the above conditions, the shape of the third lens can be limited, and makes the curvature half of the object side of the third lens
Diameter will not be too small, and influences the processing and manufacturing of the third lens and the assembling of pick-up lens, and then influences product yield.In addition, logical
Object side and the radius of curvature of image side surface for crossing reasonable distribution the third lens, can maintain aberration balancing, improve pick-up lens
Image quality.
In some embodiments, the pick-up lens meets conditional：
0 L4R2/L4R1≤1.7 ＜；
Wherein, L4R1 is the radius of curvature of the object side of the 4th lens, and L4R2 is the image side surface of the 4th lens
Radius of curvature.
Meet the above conditions, the shape of the 4th lens can be limited, and makes the curvature half of the object side of the 4th lens
Diameter will not be too small, and influences the processing and manufacturing of the 4th lens and the assembling of pick-up lens.In addition, passing through the 4th lens of reasonable distribution
Object side and image side surface radius of curvature, be conducive to correct the first lens to the third lens caused by aberration and astigmatism, and
Promote the resolving power of pick-up lens.
In some embodiments, the pick-up lens meets conditional：
0.15≤IMH/TTL≤0.6；
Wherein, IMH is image height, and TTL is the object side of first lens to the imaging surface of the pick-up lens
Distance on axis.
As IMH/TTL ＜ 0.15, the overall length of pick-up lens is long, is unfavorable for the miniaturization of pick-up lens；Work as IMH/TTL
When ＞ 0.6, it is difficult to correct the aberration and astigmatism of pick-up lens.Meet the above conditions, can preferably correct each aberration and picture
It dissipates, and can realize the miniaturization of pick-up lens, to be equipped on frivolous portable electronic product.
The electronic device of the utility model embodiment, including：
Image Sensor；And
Pick-up lens described in any of the above-described embodiment, the pick-up lens are aligned with the Image Sensor.
By above-mentioned design, the pick-up lens of the electronic device of the utility model embodiment disclosure satisfy that high-resolution,
Extra-thin demand, and due to being provided with infrared fileter (infrared to pass through optical filter) between the 4th lens and imaging surface, with
Filter out the light of its all band such as visible light, and only allow infrared light by and enter Image Sensor, therefore, pick-up lens
It can be used as the use of infrared photography camera lens, that is, pick-up lens can also can under dim environment and other special application scenarios
Imaging, for example, pick-up lens be applied to monitor when, either daytime or at night can obtain preferable image effect.
The additional aspect and advantage of the utility model embodiment will be set forth in part in the description, partly will be under
Become apparent in the description in face, or is recognized by the practice of the utility model.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model can retouch embodiment from conjunction with following accompanying drawings
It will be apparent and be readily appreciated that in stating, wherein：
Fig. 1 is the structural schematic diagram of the pick-up lens of the utility model first embodiment；
Fig. 2 is the structural schematic diagram of the pick-up lens of the utility model second embodiment；
Fig. 3 is the aberration diagram (mm) of pick-up lens in Fig. 1；
Fig. 4 is the aberration diagram (mm) of pick-up lens in Fig. 2；
Fig. 5 is the structural schematic diagram of the electronic device of the utility model embodiment.
Specific implementation mode
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein
Same or similar label indicates same or similar element or element with the same or similar functions from beginning to end.Lead to below
It crosses the embodiment being described with reference to the drawings to be exemplary, is only used for explaining the utility model, and should not be understood as to this practicality
Novel limitation.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise " be based on the orientation or positional relationship shown in the drawings, be only for
Described convenient for description the utility model and simplifying, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " first ",
" second " is used for description purposes only, and is not understood to indicate or imply relative importance or implicitly indicates indicated technology
The quantity of feature.Define " first " as a result, the feature of " second " can explicitly or implicitly include it is one or more
The feature.The meaning of " plurality " is two or more in the description of the present invention, unless otherwise clearly specific
It limits.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be to be electrically connected or can mutually communicate；It can be directly connected, it can also be in
Between medium be indirectly connected, can be the interaction relationship of the connection or two elements inside two elements.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features are in direct contact, and can also not be to be in direct contact but lead to including the first and second features
Cross the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the
One feature is right over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special
Sign second feature " under ", " lower section " and " below " include fisrt feature right over second feature and oblique upper, or only
Indicate that fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the utility model.
In order to simplify the disclosure of the utility model, hereinafter the component of specific examples and setting are described.Certainly, they are only
Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals
And/or reference letter, this repetition are for purposes of simplicity and clarity, itself not indicate discussed various embodiments
And/or the relationship between setting.In addition, the example for the various specific techniques and material that the utility model provides, but this
Field those of ordinary skill can be appreciated that the application of other techniques and/or the use of other materials.
It please refers to Fig.1 and Fig. 2, the pick-up lens 10 of the utility model embodiment includes first successively from object side to image side
Lens L1, the second lens L2, the third lens L3 with positive light coke, the 4th lens L4 and infrared absorption filter with negative power
Mating plate L5.
There is first lens L1 object side S1 and image side surface S2, the second lens L2 to have object side S3 and image side surface S4, the
There is three lens L3 object side S5 and image side surface S6, the 4th lens L4 to have object side S7 and image side surface S8, infrared fileter L5
With object side S9 and image side surface S10.
Referring to Fig. 1, in some embodiments, pick-up lens 10 further includes aperture diaphragm STO.Aperture diaphragm STO can
To be arranged on the surface of any one piece of lens, or it is arranged before the first lens L1, or is arranged between arbitrary two pieces of lens,
Or it is arranged between the 4th lens L4 and infrared fileter L5.For example, in Fig. 1, aperture diaphragm STO is arranged in the first lens L1
Between the second lens L2.In fig. 2, aperture diaphragm STO is arranged before the first lens L1.
When pick-up lens 10 is for when being imaged, the light that subject OBJ sends out or reflects to be taken the photograph from the entrance of object side direction
As camera lens 10, and sequentially pass through the first lens L1, the second lens L2, the third lens L3, the 4th lens L4 and infrared fileter
L5 is finally converged on imaging surface S11.
In some embodiments, pick-up lens 10 meets conditional：
- 6≤f4/F≤- 1；
Wherein, F is the effective focal length of pick-up lens 10, and f4 is the focal length of the 4th lens L4.
In other words, f4/F can be [- 6, -1] range in arbitrary value, such as the value can be -6, -
5.5, -5, -4.5, -4, -3.5, -3, -2.5, -2, -1.5, -1 etc..
By above-mentioned design, pick-up lens 10 disclosure satisfy that high-resolution, extra-thin demand, and due in the 4th lens
Infrared fileter L5 (infrared by optical filter L5) is provided between L4 and imaging surface S11, with filter out visible light etc. other
The light of wave band, and only allow infrared light by and enter Image Sensor 20 (shown in Fig. 5), therefore, pick-up lens 10 can be used as
Infrared photography camera lens uses, that is, and pick-up lens 10 can be also imaged under dim environment and other special application scenarios,
Such as pick-up lens 10 be applied to monitor when, either daytime or at night can obtain preferable image effect.
In some embodiments, pick-up lens 10 meets conditional：
1.4≤FNO≤10；
Wherein, FNO is the coke ratio of pick-up lens 10.
In other words, FNO can be [1.4,10.0] range in arbitrary value, such as the value can be 1.4,2,3,
4,5,6,7,8,9,9.5,10 etc..
Specifically, pick-up lens 10 can adjust coke ratio (i.e. f-number) by aperture diaphragm STO.Such as：Pick-up lens
Coke ratio can be adjusted to 1.6,1.8 etc. by 10 by aperture diaphragm STO.
The pick-up lens 10 of the utility model embodiment can adjust coke ratio in the range of 1.4 to 10.0, may make
Aberration obtains good correction, further meets the needs of high imaging quality.
In some embodiments, pick-up lens 10 meets conditional：
1≤TTL/F≤3；
Wherein, F is the effective focal length of pick-up lens 10.
In other words, TTL/F can be [1,3] range in arbitrary value, such as the value can be 1,1.2,1.4,
1.6,1.8,2.0,2.2,2.4,2.6,2.8,3 etc..
As TTL/F ＜ 1, it is difficult to correct each aberration, especially curvature of the image, distortion aberration；As TTL/F ＞ 3, camera shooting
The overall length of camera lens 10 is long, leads to the whole enlargement of pick-up lens 10.Meet the above conditions, can preferably correct each picture
Difference, and can realize the miniaturization of pick-up lens 10.
In some embodiments, pick-up lens 10 meets conditional：
0 f3/F≤5 ＜；
Wherein, f3 is the focal length of the third lens L3.
In other words, f3/F can be (0,5] arbitrary value in range, such as the value can be 0.5,1,1.5,2,
2.5,3,3.5,4,4.5,5 etc..
Meet the above conditions so that the third lens L3 has proper focal power, to coordinate pick-up lens 10 whole
The configuration of body focal power keeps susceptibility relatively low, and is conducive to correct aberration caused by the first lens L1 and the second lens L2.
In some embodiments, pick-up lens 10 meets conditional：
0 L3R2/L3R1≤2.0 ＜；
Wherein, L3R1 is the radius of curvature of the object side S5 of the third lens L3, and L3R2 is the image side surface S6 of the third lens L3
Radius of curvature.
In other words, L3R2/L3R1 can be (0,2.0] arbitrary value in range, such as the value can be 0.1,
0.2,0.4,0.6,0.8,1,1.2,1.4,1.6,1.8,1.9,2.0 etc..
Meet the above conditions, the shape of the third lens L3 can be limited, and make the object side S5 of the third lens L3
Radius of curvature will not be too small, and influences the processing and manufacturing of the third lens L3 and the assembling of pick-up lens 10, and then it is good to influence product
Rate.In addition, the radius of curvature of the object side S5 and image side surface S6 by reasonable distribution the third lens L3, can maintain aberration flat
Weighing apparatus improves the image quality of pick-up lens 10.
In some embodiments, pick-up lens 10 meets conditional：
0 L4R2/L4R1≤1.7 ＜；
Wherein, L4R1 is the radius of curvature of the object side S7 of the 4th lens L4, and L4R2 is the image side surface S8 of the 4th lens L4
Radius of curvature.
In other words, L4R2/L4R1 can be (0,1.7] arbitrary value in range, such as the value can be 0.1,
0.2,0.4,0.6,0.8,1,1.2,1.4,1.6,1.7 etc..
Meet the above conditions, the shape of the 4th lens L4 can be limited, and make the object side S7 of the 4th lens L4
Radius of curvature will not be too small, and influences the processing and manufacturing of the 4th lens L4 and the assembling of pick-up lens 10, and then it is good to influence product
Rate.In addition, the radius of curvature of the object side S7 and image side surface S8 by the 4th lens L4 of reasonable distribution, are conducive to correct first thoroughly
Aberration and astigmatism caused by mirror L1 to the third lens L3, and promote the resolving power of pick-up lens 10.
In some embodiments, pick-up lens 10 meets conditional：
0.15≤IMH/TTL≤0.6；
Wherein, IMH is image height, the imaging surface S11 of the object side S1 that TTL is the first lens L1 to pick-up lens 10
Distance on axis.
In other words, IMH/TTL can be able to be for the arbitrary value in [0.15,0.6] range, such as the value
0.15,0.2,0.25,0.3,0.35,0.4,0.45,0.5,0.55,0.6 etc..
As IMH/TTL ＜ 0.15, the overall length of pick-up lens 10 is long, is unfavorable for the miniaturization of pick-up lens 10；When
When IMH/TTL ＞ 0.6, it is difficult to correct the aberration and astigmatism of pick-up lens 10.Meet the above conditions, can preferably correct each
Aberration and astigmatism, and can realize the miniaturization of pick-up lens 10, to be equipped on frivolous portable electronic product.
In some embodiments, the material of the first lens L1, the second lens L2, the third lens L3 and the 4th lens L4
It is plastics.
Since the first lens L1 to the 4th lens L4 is all made of plastic lens, pick-up lens 10 is effectively eliminating aberration, is expiring
While foot high pixel demand, ultrathin may be implemented, and cost is relatively low.
In some embodiments, infrared fileter L5 is the plate glass made of glass material, infrared fileter L5
Wavelength of light section for adjusting imaging makes infrared light enter (Fig. 5 institutes of Image Sensor 20 specifically for isolation visible light
Show).
In some embodiments, the first lens L1, the second lens L2, the third lens L3 and the 4th lens L4 are non-
Spherical mirror.Aspherical face type is determined by following formula：
Wherein, Z is the fore-and-aft distance of aspherical any point and surface vertices, and r is aspherical any point to optical axis
Distance, c are vertex curvature (inverses of radius of curvature), and k is the constant of the cone, and A, B, C, D, E, F, G are asphericity coefficients.
In this way, pick-up lens 10 can be effectively reduced by the radius of curvature and asphericity coefficient of each lens surface of adjusting
The total length of pick-up lens 10, and system aberration can be effectively corrected, improve image quality.
First embodiment
Referring to Fig. 1, in the first embodiment, there is the first lens L1 negative power, the second lens L2 to have positive light
There is positive light coke, the 4th lens L4 to have negative power by focal power, the third lens L3.
In the pick-up lens 10 of the utility model embodiment, due to multiple lens with positive light coke and negative power
Mixing arrangement, meets demand of the pick-up lens 10 to ultrathin, and can ensure that pick-up lens 10 has preferably at image quality
Amount.It is used at this point, pick-up lens 10 can be used as ultrathin super large aperture infrared photography camera lens.
In the first embodiment, object side S1 is convex surface, and image side surface S2 is concave surface, and object side S3 is convex surface, image side surface
S4 is convex surface, and object side S5 is concave surface, and image side surface S6 is convex surface, and object side S7 is convex surface at paraxial place, and image side surface S8 is paraxial
Place is concave surface.Further, image side surface S8 may include at least two points of inflexion.In this way, off-axis visual field can be suppressed effectively
Light is incident in the angle in Image Sensor 20 (shown in Fig. 5), to the aberration of modified off-axis visual field.
It please refers to Fig.1 and Fig. 3, the Image Sensor 20 (shown in Fig. 5) that first embodiment is selected is 1/7.5 inch
The diagonal distance in (inch), effective image sensing area is 2.4mm, and pick-up lens 10 meets the condition of following table：
Table 1
| f1(mm) | -38.324 | F(mm) | 1.733 |
| f2(mm) | 1.780 | FNO | 1.6 |
| f3(mm) | 5.295 | FOV(deg) | 69.1 |
| f4(mm) | -6.635 |
In table 1, f1 is the focal length of the first lens L1, and f2 is the focal length of the second lens L2, and f3 is the focal length of the third lens L3,
F4 is the focal length of the 4th lens L4, and F is the effective focal length of pick-up lens 10, and FNO is the coke ratio of pick-up lens 10, and FOV is camera shooting
The field angle of camera lens 10.
Table 2
Table 3
Second embodiment
Referring to Fig. 2, in this second embodiment, there is the first lens L1 positive light coke, the second lens L2 to have negative light
There is positive light coke, the 4th lens L4 to have negative power by focal power, the third lens L3.
In the pick-up lens 10 of the utility model embodiment, due to multiple lens with positive light coke and negative power
Mixing arrangement, meets demand of the pick-up lens 10 to ultrathin, and can ensure that pick-up lens 10 has preferably at image quality
Amount.It is used at this point, pick-up lens 10 can be used as ultrathin super large aperture infrared photography camera lens.
In this second embodiment, object side S1 is convex surface, and image side surface S2 is convex surface, and object side S3 is convex surface, image side surface
S4 is concave surface, and object side S5 is concave surface, and image side surface S6 is convex surface, and object side S7 is convex surface at paraxial place, and image side surface S8 is paraxial
Place is concave surface.Further, image side surface S10 may include at least two points of inflexion.In this way, off-axis visual field can be suppressed effectively
Light is incident in the angle in Image Sensor 20 (shown in Fig. 5), to the aberration of modified off-axis visual field.
Fig. 2 and Fig. 4 are please referred to, the Image Sensor 20 (shown in Fig. 5) that second embodiment is selected is 1/7.5 inch
The diagonal distance in (inch), effective image sensing area is 2.4mm, and pick-up lens 10 meets the condition of following table：
Table 4
In table 4, f1 is the focal length of the first lens L1, and f2 is the focal length of the second lens L2, and f3 is the focal length of the third lens L3,
F4 is the focal length of the 4th lens L4, and F is the effective focal length of pick-up lens 10, and FNO is the coke ratio of pick-up lens 10, and FOV is camera shooting
The field angle of camera lens 10.
Table 5
Table 6
Referring to Fig. 5, the pick-up lens 10 of the utility model embodiment can be applied to the utility model embodiment
Electronic device 100.Electronic device 100 includes the pick-up lens 10 of Image Sensor 20 and any of the above-described embodiment.Camera lens
First 10 are aligned with Image Sensor 20.
Specifically, complementary metal oxide semiconductor (CMOS, Complementary may be used in Image Sensor 20
Metal Oxide Semiconductor) Image Sensor or charge coupled cell (CCD, Charge-coupled
Device) Image Sensor.Pick-up lens 10 be aligned with Image Sensor 20 including：The optical axis and image sensing of pick-up lens 10
The centre normal of device 20 overlaps.
The electronic device 100 of the utility model embodiment includes but not limited to that (mobile phone is put down for hand-held electronic equipment
Plate, laptop, camera, 3D video cameras, smartwatch etc.), smart home device, video monitor, gesture detection equipment,
The electronic device of the supports such as temperature sense equipment imaging.
In the description of this specification, reference term " certain embodiments ", " embodiment ", " some embodiment party
The description of formula ", " exemplary embodiment ", " example ", " specific example " or " some examples " etc. means in conjunction with the embodiment party
Formula or example particular features, structures, materials, or characteristics described be contained in the utility model at least one embodiment or
In example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or example.And
And particular features, structures, materials, or characteristics described can be in any one or more embodiments or example to close
Suitable mode combines.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one feature.The meaning of " plurality " is at least two, such as two in the description of the present invention,
It is a, three etc., unless otherwise specifically defined.
Although the embodiment of the utility model has been shown and described above, it is to be understood that above-mentioned embodiment party
Formula is exemplary, and should not be understood as limiting the present invention, and those skilled in the art are in the utility model
The above embodiment can be changed, be changed in range, replaced and modification, the scope of the utility model by claim and
Its equivalent limits.
Claims (10)
1. a kind of pick-up lens, which is characterized in that include successively from object side to image side：
First lens；
Second lens；
The third lens with positive light coke；
The 4th lens with negative power；And
Infrared fileter；
The pick-up lens meets conditional：
- 6≤f4/F≤- 1；
Wherein, F is the effective focal length of the pick-up lens, and f4 is the focal length of the 4th lens.
2. pick-up lens according to claim 1, which is characterized in that first lens have a negative power, and described the
Two lens have positive light coke.
3. pick-up lens according to claim 1, which is characterized in that first lens have a positive light coke, and described the
Two lens have negative power.
4. according to the pick-up lens described in claim 1-3 any one, which is characterized in that the pick-up lens meets condition
Formula：
1.4≤FNO≤10；
Wherein, FNO is the coke ratio of the pick-up lens.
5. according to the pick-up lens described in claim 1-3 any one, which is characterized in that the pick-up lens meets condition
Formula：
1≤TTL/F≤3；
Wherein, TTL is distance on the axis of imaging surface of the object side of first lens to the pick-up lens.
6. according to the pick-up lens described in claim 1-3 any one, which is characterized in that the pick-up lens meets condition
Formula：
0 f3/F≤5 ＜；
Wherein, f3 is the focal length of the third lens.
7. according to the pick-up lens described in claim 1-3 any one, which is characterized in that the pick-up lens meets condition
Formula：
0 L3R2/L3R1≤2.0 ＜；
Wherein, L3R1 is the radius of curvature of the object side of the third lens, and L3R2 is the song of the image side surface of the third lens
Rate radius.
8. according to the pick-up lens described in claim 1-3 any one, which is characterized in that the pick-up lens meets condition
Formula：
0 L4R2/L4R1≤1.7 ＜；
Wherein, L4R1 is the radius of curvature of the object side of the 4th lens, and L4R2 is the song of the image side surface of the 4th lens
Rate radius.
9. according to the pick-up lens described in claim 1-3 any one, which is characterized in that the pick-up lens meets condition
Formula：
0.15≤IMH/TTL≤0.6；
Wherein, IMH is image height, and TTL is on the axis of imaging surface of the object side of first lens to the pick-up lens
Distance.
10. a kind of electronic device, which is characterized in that including：
Image Sensor；And
Pick-up lens described in any one of claim 1-9, the pick-up lens are aligned with the Image Sensor.
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109960009A (en) * | 2017-12-22 | 2019-07-02 | 南昌欧菲光电技术有限公司 | Pick-up lens and electronic device |
| US10908391B2 (en) | 2018-07-12 | 2021-02-02 | Largan Precision Co., Ltd. | Imaging optical lens assembly, image capturing unit and electronic device |
| US11662551B2 (en) | 2019-12-20 | 2023-05-30 | Largan Precision Co., Ltd. | Optical lens assembly, image capturing unit and electronic device |
-
2017
- 2017-12-22 CN CN201721824830.1U patent/CN207764463U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109960009A (en) * | 2017-12-22 | 2019-07-02 | 南昌欧菲光电技术有限公司 | Pick-up lens and electronic device |
| US10908391B2 (en) | 2018-07-12 | 2021-02-02 | Largan Precision Co., Ltd. | Imaging optical lens assembly, image capturing unit and electronic device |
| US11555986B2 (en) * | 2018-07-12 | 2023-01-17 | Largan Precision Co., Ltd. | Imaging optical lens assembly, image capturing unit and electronic device |
| US11822056B2 (en) | 2018-07-12 | 2023-11-21 | Largan Precision Co., Ltd. | Imaging optical lens assembly, image capturing unit and electronic device |
| US11662551B2 (en) | 2019-12-20 | 2023-05-30 | Largan Precision Co., Ltd. | Optical lens assembly, image capturing unit and electronic device |
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Effective date of registration: 20210623 Address after: 330096 no.1404, Tianxiang North Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee after: Jiangxi Jinghao optics Co.,Ltd. Address before: 330013, Nanchang, Jiangxi, north of the Economic Development Zone Huang Jia Hu West Road, the ophelion Technology Park. Patentee before: NANCHANG OFILM OPTICAL-ELECTRONIC TECH Co.,Ltd. |
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