CN207764461U - Pick-up lens and electronic device - Google Patents
Pick-up lens and electronic device Download PDFInfo
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- CN207764461U CN207764461U CN201721824463.5U CN201721824463U CN207764461U CN 207764461 U CN207764461 U CN 207764461U CN 201721824463 U CN201721824463 U CN 201721824463U CN 207764461 U CN207764461 U CN 207764461U
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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：The first lens with positive light coke；The second lens with negative power；The third lens；The 4th lens with positive light coke；The 5th lens with negative power；And infrared fileter；Pick-up lens meets conditional：- 4≤f2/F ＜ 0；Wherein, F is the effective focal length of pick-up lens, and f2 is the focal length of the second 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 between the 5th 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 infrared photography camera lens use, that is, pick-up lens can also be imaged under dim environment and other special application scenarios and 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：
The first lens with positive light coke；
The second lens with negative power；
The third lens；
The 4th lens with positive light coke；
The 5th lens with negative power；And
Infrared fileter；
The pick-up lens meets conditional：
- 4≤f2/F ＜ 0；
Wherein, F is the effective focal length of the pick-up lens, and f2 is the focal length of second lens.
By above-mentioned design, pick-up lens disclosure satisfy that high-resolution, extra-thin demand, and due to the 5th 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, the image side surface of the 5th lens is concave surface at paraxial place and includes at least two contrary flexure
Point.
In this way, the light that can effectively suppress off-axis visual field is incident in the angle in Image Sensor, to modified off-axis
The aberration of visual field.
In some embodiments, first lens, second lens, the third lens, the 4th lens,
And the 5th lens are aspherical mirror.
In this way, pick-up lens can be effectively reduced and taken the photograph by the radius of curvature and asphericity coefficient of each lens surface of adjusting
As the total length of camera lens, and system aberration can be effectively corrected, improve image quality.
In some embodiments, the pick-up lens meets conditional：
1.6≤FNO≤10.0；
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 1.6 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≤2.5；
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 ＞ 2.5, take the photograph
As the overall length of camera lens is long, lead to the whole enlargement of pick-up lens.Meet the above conditions, can preferably correct each aberration,
And it can realize the ultrathin of pick-up lens.
In some embodiments, the pick-up lens meets conditional：
0 f1/F≤3 ＜；
Wherein, f1 is the focal length of first lens.
As f1/F ＞ 3, light path is longer, is unfavorable for the ultrathin of pick-up lens.Meet the above conditions, by rationally dividing
With the first power of lens, is conducive to the overall length for reducing pick-up lens, realizes the ultrathin of pick-up lens；Simultaneously so that first
The shape of lens is relatively uniform, to ensure the craftsmanship of the first lens.
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≤2.0 ＜；
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 third lens
Diameter will not be too small, and influences the processing and manufacturing of the 4th lens and the assembling of pick-up lens, and then influences product yield.In addition, logical
The radius of curvature for crossing the object side and image side surface of the 4th lens of reasonable distribution is conducive to amendment the first lens to the third lens and is produced
Raw aberration and astigmatism, and promote the resolving power of pick-up lens.
In some embodiments, the pick-up lens meets conditional：
0 L5R2/L5R1≤2.0 ＜；
Wherein, L5R1 is the radius of curvature of the object side of the 5th lens, and L5R2 is the image side surface of the 5th lens
Radius of curvature.
Meet the above conditions, the shape of the 5th lens can be limited, and makes the curvature half of the object side of the 5th lens
Diameter will not be too small, and influences the processing and manufacturing of the 5th lens and the assembling of pick-up lens, and then influences product yield.In addition, logical
The radius of curvature for crossing the object side and image side surface of the 5th lens of reasonable distribution is conducive to amendment the first lens to the 4th lens and is produced
Raw aberration and astigmatism, and promote the resolving power of pick-up lens.
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 5th 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 structural schematic diagram of the pick-up lens of the utility model third embodiment；
Fig. 4 is the aberration diagram (mm) of pick-up lens in Fig. 1；
Fig. 5 is the aberration diagram (mm) of pick-up lens in Fig. 2；
Fig. 6 is the aberration diagram (mm) of pick-up lens in Fig. 3；
Fig. 7 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.
Also referring to Fig. 1 to Fig. 3, the pick-up lens 10 of the utility model embodiment includes successively from object side to image side
The first lens L1 with positive light coke, the second lens L2 with negative power, the third lens L3, with positive light coke
Four lens L4, the 5th lens L5 with negative power and infrared fileter L6.
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, the 5th lens L5 tools
There are object side S9 and image side surface S10, infrared fileter L6 that there is object side S11 and image side surface S12.
In some embodiments, pick-up lens 10 further includes aperture diaphragm STO.Aperture diaphragm STO can be arranged in office
It anticipates on the surface of one piece of lens, or is arranged before the first lens L1, or be arranged between arbitrary two pieces of lens, or setting is the
Between five lens L5 and infrared fileter L6.For example, in Fig. 1, aperture diaphragm STO is arranged on the surface of the first lens L1.
In figure 2 and figure 3, aperture diaphragm STO is arranged between the first lens L1 and the second lens L2.
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, the 5th lens L5, with
And infrared fileter L6, it finally converges on imaging surface S13.
In some embodiments, pick-up lens 10 meets conditional：
- 4≤f2/F ＜ 0；
Wherein, F is the effective focal length of pick-up lens 10, and f2 is the focal length of the second lens L2.
In other words, f2/F can be [- 4,0) arbitrary value in range, such as the value can be -4, -
3.5, -3, -2.5, -2, -1.5, -1, -0.5 etc..
By above-mentioned design, pick-up lens 10 disclosure satisfy that high-resolution, extra-thin demand, and due in the 5th lens
Infrared fileter L6 (infrared by optical filter L6) is provided between L5 and imaging surface S13, 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. 7), therefore, pick-up lens 10 can be used as
Infrared photography camera lens uses, that is, pick-up lens 10 can be also imaged under dim environment and other special application scenarios
And have preferable image effect, such as pick-up lens 10 be applied to monitor when, either daytime or at night can obtain
Obtain preferable image effect.
In some embodiments, pick-up lens 10 meets conditional：
1.6≤FNO≤10.0；
Wherein, FNO is the coke ratio of pick-up lens 10.
In other words, FNO can be [1.6,10.0] range in arbitrary value, such as the value can be 1.6,2,3,
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 1.8,1.9 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 1.6 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≤2.5；
Wherein, F is the effective focal length of pick-up lens 10.
In other words, TTL/F can be [1,6] range in arbitrary value, such as the value can be 1,1.15,1.3,
1.45,1.6,1.75,1.9,2.05,2.2,2.35,2.5 etc..
As TTL/F ＜ 1, it is difficult to correct each aberration, especially curvature of the image, distortion aberration；As TTL/F ＞ 2.5, take the photograph
As the overall length of camera lens 10 is long, lead to the whole enlargement of pick-up lens 10.Meet the above conditions, can preferably correct each picture
Difference, and can realize the ultrathin of pick-up lens 10.
In some embodiments, pick-up lens 10 meets conditional：
0 f1/F≤3 ＜；
Wherein, f1 is the focal length of the first lens L1.
In other words, f1/F can be (0,3] arbitrary value in range, such as the value can be 0.3,0.6,0.9,
1.2,1.5,1.8,2.1,2.4,2.7,3.0 etc..
As f1/F ＞ 3, light path is longer, is unfavorable for the ultrathin of pick-up lens 10.Meet the above conditions, by reasonable
The focal power for distributing the first lens L1 is conducive to the overall length for reducing pick-up lens 10, realizes the ultrathin of pick-up lens 10；Simultaneously
So that the shape of the first lens L1 is relatively uniform, to ensure the craftsmanship of the first lens L1.
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≤2.0 ＜；
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 (0,2.0] 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 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 L5R2/L5R1≤2.0 ＜；
Wherein, L5R1 is the radius of curvature of the object side S9 of the 5th lens L5, and L5R2 is the image side surface S10 of the 5th lens L5
Radius of curvature.
In other words, L5R2/L5R1 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 5th lens L5 can be limited, and make the object side S9 of the 5th lens L5
Radius of curvature will not be too small, and influences the processing and manufacturing of the 5th lens L5 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 S9 and image side surface S10 by the 5th lens L5 of reasonable distribution, are conducive to amendment first
Aberration and astigmatism caused by lens L1 to the 4th lens L4, and promote the resolving power of pick-up lens 10.
In some embodiments, the first lens L1, the second lens L2, the third lens L3, the 4th lens L4 and the 5th are saturating
The material of mirror L5 is plastics.
Since the first lens L1 to the 5th lens L5 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 L6 is the plate glass made of glass material, infrared fileter L6
Wavelength of light section for adjusting imaging makes infrared light enter (Fig. 7 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, the 4th lens L4 and the 5th are saturating
Mirror L5 is aspherical 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 positive light coke, the second lens L2 to have negative light
There is positive light coke, the 4th lens L4 there is positive light coke, the 5th lens L5 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 convex surface, and object side S3 is convex surface, image side surface
S4 is concave surface, and object side S5 is convex surface, and image side surface S6 is concave surface, and object side S7 is concave surface, and image side surface S8 is convex surface, object side S9
It is convex surface at paraxial place, image side surface S10 is concave surface at paraxial place.Further, image side surface S10 may include at least two contrary flexure
Point.In this way, the light that can effectively suppress off-axis visual field is incident in the angle in Image Sensor 20 (shown in Fig. 7), to repair
The aberration of just off-axis visual field.
Please refer to Fig.1 and Fig. 4, the Image Sensor 20 (shown in Fig. 7) that first embodiment is selected be 1/4 inch (inch),
The diagonal distance in effective image sensing area is 4.693mm, and pick-up lens 10 meets the condition of following table：
Table 1
| f1(mm) | 2.595 | F(mm) | 2.822 |
| f2(mm) | -4.686 | FNO | 1.8 |
| f3(mm) | 139.315 | FOV(deg) | 79.0 |
| f4(mm) | 1.081 | ||
| f5(mm) | -1.090 |
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 f5 is the focal length of the 5th lens L5, and F is the effective focal length of pick-up lens 10, and FNO is camera lens
First 10 coke ratio, FOV are the field angle of pick-up 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 negative power, the 4th lens L4 there is positive light coke, the 5th lens L5 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 convex surface, and image side surface S6 is concave surface, and object side S7 is concave surface, and image side surface S8 is convex surface, object side S9
It is convex surface at paraxial place, image side surface S10 is concave surface at paraxial place.Further, image side surface S10 may include at least two contrary flexure
Point.In this way, the light that can effectively suppress off-axis visual field is incident in the angle in Image Sensor 20 (shown in Fig. 7), to repair
The aberration of just off-axis visual field.
Please refer to Fig. 2 and Fig. 5, the Image Sensor that second embodiment is selected be 20 (shown in Fig. 7) 1/4 inch (inch),
The diagonal distance in effective image sensing area is 4.693mm, and pick-up lens 10 meets the condition of following table：
Table 4
| f1(mm) | 2.488 | F(mm) | 2.800 |
| f2(mm) | -4.980 | FNO | 1.8 |
| f3(mm) | -147.144 | FOV(deg) | 79.1 |
| f4(mm) | 1.146 | ||
| f5(mm) | -1.123 |
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 f5 is the focal length of the 5th lens L5, and F is the effective focal length of pick-up lens 10, and FNO is camera lens
First 10 coke ratio, FOV are the field angle of pick-up lens 10.
Table 5
Table 6
Third embodiment
Referring to Fig. 3, in the third embodiment, there is the first lens L1 positive light coke, the second lens L2 to have negative light
There is negative power, the 4th lens L4 there is positive light coke, the 5th lens L5 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 third 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 convex surface, and image side surface S6 is concave surface, and object side S7 is concave surface, and image side surface S8 is convex surface, object side S9
It is convex surface at paraxial place, image side surface S10 is concave surface at paraxial place.Further, image side surface S10 may include at least two contrary flexure
Point.In this way, the light that can effectively suppress off-axis visual field is incident in the angle in Image Sensor 20 (shown in Fig. 7), to repair
The aberration of just off-axis visual field.
Please refer to Fig. 3 and Fig. 6, the Image Sensor 20 (shown in Fig. 7) that third embodiment is selected be 1/4 inch (inch),
The diagonal distance in effective image sensing area is 4.693mm, and pick-up lens 10 meets the condition of following table：
Table 7
| f1(mm) | 2.483 | F(mm) | 2.800 |
| f2(mm) | -5.241 | FNO | 1.8 |
| f3(mm) | -74.535 | FOV(deg) | 79.1 |
| f4(mm) | 1.144 | ||
| f5(mm) | -1.101 |
In table 7, 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 f5 is the focal length of the 5th lens L5, and F is the effective focal length of pick-up lens 10, and FNO is camera lens
First 10 coke ratio, FOV are the field angle of pick-up lens 10.
Table 8
Table 9
Referring to Fig. 7, 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：
The first lens with positive light coke；
The second lens with negative power；
The third lens；
The 4th lens with positive light coke；
The 5th lens with negative power；And
Infrared fileter；
The pick-up lens meets conditional：
- 4≤f2/F ＜ 0；
Wherein, F is the effective focal length of the pick-up lens, and f2 is the focal length of second lens.
2. pick-up lens according to claim 1, which is characterized in that the image side surface of the 5th lens is recessed at paraxial place
Face and include at least two points of inflexion.
3. pick-up lens according to claim 1, which is characterized in that first lens, second lens, described
Three lens, the 4th lens and the 5th lens are aspherical mirror.
4. pick-up lens according to claim 1, which is characterized in that the pick-up lens meets conditional：
1.6≤FNO≤10.0；
Wherein, FNO is the coke ratio of the pick-up lens.
5. pick-up lens according to claim 1, which is characterized in that the pick-up lens meets conditional：
1≤TTL/F≤2.5；
Wherein, TTL is distance on the axis of imaging surface of the object side of first lens to the pick-up lens.
6. pick-up lens according to claim 1, which is characterized in that the pick-up lens meets conditional：
0 f1/F≤3 ＜；
Wherein, f1 is the focal length of first lens.
7. pick-up lens according to claim 1, which is characterized in that 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 song of the image side surface of the third lens
Rate radius.
8. pick-up lens according to claim 1, which is characterized in that the pick-up lens meets conditional：
0 L4R2/L4R1≤2.0 ＜；
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. pick-up lens according to claim 1, which is characterized in that the pick-up lens meets conditional：
0 L5R2/L5R1≤2.0 ＜；
Wherein, L5R1 is the radius of curvature of the object side of the 5th lens, and L5R2 is the song of the image side surface of the 5th lens
Rate radius.
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721824463.5U CN207764461U (en) | 2017-12-22 | 2017-12-22 | Pick-up lens and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721824463.5U CN207764461U (en) | 2017-12-22 | 2017-12-22 | Pick-up lens and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207764461U true CN207764461U (en) | 2018-08-24 |
Family
ID=63188417
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721824463.5U Active CN207764461U (en) | 2017-12-22 | 2017-12-22 | Pick-up lens and electronic device |
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| Country | Link |
|---|---|
| CN (1) | CN207764461U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109960010A (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 |
| CN110297316A (en) * | 2019-06-30 | 2019-10-01 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN110412750A (en) * | 2019-09-05 | 2019-11-05 | 浙江舜宇光学有限公司 | Optical imaging system |
| CN113640940A (en) * | 2020-05-11 | 2021-11-12 | 新巨科技股份有限公司 | Five-piece infrared single-focus lens group |
-
2017
- 2017-12-22 CN CN201721824463.5U patent/CN207764461U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109960010A (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 |
| CN110297316A (en) * | 2019-06-30 | 2019-10-01 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN110412750A (en) * | 2019-09-05 | 2019-11-05 | 浙江舜宇光学有限公司 | Optical imaging system |
| CN113640940A (en) * | 2020-05-11 | 2021-11-12 | 新巨科技股份有限公司 | Five-piece infrared single-focus lens group |
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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. |