CN207516710U - Projection lens - Google Patents
Projection lens Download PDFInfo
- Publication number
- CN207516710U CN207516710U CN201721731020.1U CN201721731020U CN207516710U CN 207516710 U CN207516710 U CN 207516710U CN 201721731020 U CN201721731020 U CN 201721731020U CN 207516710 U CN207516710 U CN 207516710U
- Authority
- CN
- China
- Prior art keywords
- lens
- projection lens
- projection
- optical axis
- image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Lenses (AREA)
Abstract
This application discloses a kind of projection lens, which is extremely sequentially included along optical axis by image source side into image side：The first lens with positive light coke or negative power；The second lens with positive light coke or negative power；And the third lens with positive light coke, image side surfaces are convex surface.Wherein, total effective focal length f of the image source face of projection lens to distance TTL and projection lens of the image side surfaces on optical axis of third lens meet TTL/f ＜ 1.4；The effective focal length f3 of third lens and total effective focal length f of projection lens meet 0 ＜ f3/f ＜ 18.0.
Description
Technical field
This application involves a kind of projection lens, more specifically, this application involves a kind of projection lens for including three pieces lens.
Background technology
In recent years, being constantly progressive with science and technology, interactive device gradually rises, and the application range of projection lens is also increasingly
Extensively.Nowadays, chip technology is quickly grown with intelligent algorithm, is projected image to space object using optical projection lens and received and is somebody's turn to do
Picture signal, you can calculate the 3-D view with depth information.3-D view with depth information can be further
For a variety of good application exploitations such as bio-identification.
And the conventional projection camera lens being imaged is used for, usually various aberrations are eliminated by using the mode for increasing lens numbers
And improve resolution ratio.Increasing lens numbers can cause the optics total length of projection lens to increase, and can be unfavorable for realizing the small of camera lens
Type.In addition, general big field angle projection lens can also be big there are amount of distortion, the problems such as image quality difference.
Utility model content
This application provides be applicable to portable electronic product, can at least solve or part solve it is of the prior art
The projection lens of above-mentioned at least one shortcoming.
On the one hand, this application provides such a projection lens, and the projection lens is along optical axis by image source side to imaging
Side sequentially includes：The first lens with positive light coke or negative power；The second lens with positive light coke or negative power；
Third lens with positive light coke, image side surfaces can be convex surface.Wherein, the image source face of projection lens is to third lens
Total effective focal length f of distance TTL and projection lens of the image side surfaces on optical axis can meet TTL/f ＜ 1.4；Third lens
Total effective focal length f of effective focal length f3 and projection lens can meet 0 ＜ f3/f ＜ 18.0.
In one embodiment, the first lens in the center thickness CT1 on optical axis and the second lens on optical axis
Heart thickness CT2 can meet 1.3 ＜ CT1/CT2 ＜ 1.8.
In one embodiment, the radius of curvature R 6 of the image side surfaces of third lens and total effective coke of projection lens
It can meet -0.5 ＜ R6/f ＜ 0 away from f.
In one embodiment, the spacing distance T12 of the first lens and the second lens on optical axis and third lens in
Center thickness CT3 on optical axis can meet 0.1 ＜ T12/CT3 ＜ 0.8.
In one embodiment, effective half bore DT22 of the image side surfaces of the second lens and the image source of the second lens
Effective half bore DT21 of side surface can meet 1.0 ＜ DT22/DT21 ＜ 1.5.
In one embodiment, the image source of effective half bore DT32 of the image side surfaces of third lens and third lens
Effective half bore DT31 of side surface can meet 1.0 ＜ DT32/DT31 ＜ 1.3.
In one embodiment, the maximum angle of half field-of view HFOV of projection lens can meet 10 ° of HFOV ＜.
In one embodiment, in the light-wave band of 800nm to 1000nm, the light penetration of projection lens can be big
In 85%.
In one embodiment, distance of the image source face of projection lens to the image source side surface of the first lens on optical axis
Distance TTL of the image side surfaces on optical axis of the image source face of BF and projection lens to third lens can meet 0 ＜ BF/TTL ＜
0.5。
On the other hand, this application provides such a projection lens, the projection lens along optical axis by image source side into
Image side sequentially includes：The first lens with positive light coke or negative power；Second with positive light coke or negative power is saturating
Mirror；Third lens with positive light coke, image side surfaces can be convex surface.Wherein, the image source face of projection lens is saturating to third
Total effective focal length f of distance TTL and projection lens of the image side surfaces of mirror on optical axis can meet TTL/f ＜ 1.4；Third is saturating
The effective focal length f3 of the mirror and effective focal length f1 of the first lens can meet -1.0 ＜ f3/f1 ＜ 30.0.
In one embodiment, total effective focal length f of the effective focal length f3 of third lens and projection lens can meet 0.5
＜ f3/f ＜ 1.6.
Another aspect, this application provides such a projection lens, the projection lens along optical axis by image source side into
Image side sequentially includes：The first lens with positive light coke or negative power；Second with positive light coke or negative power is saturating
Mirror；Third lens with positive light coke, image side surfaces can be convex surface.Wherein, the first lens are thick in the center on optical axis
Degree CT1 and the second lens can meet 1.3 ＜ CT1/CT2 ＜ 1.8 in the center thickness CT2 on optical axis.
Another aspect, this application provides such a projection lens, the projection lens along optical axis by image source side into
Image side sequentially includes：The first lens with positive light coke or negative power；Second with positive light coke or negative power is saturating
Mirror；Third lens with positive light coke, image side surfaces can be convex surface.Wherein, the song of the image side surfaces of third lens
Total effective focal length f of rate radius R6 and projection lens can meet -0.5 ＜ R6/f ＜ 0.
Another aspect, this application provides such a projection lens, the projection lens along optical axis by image source side into
Image side sequentially includes：The first lens with positive light coke or negative power；Second with positive light coke or negative power is saturating
Mirror；Third lens with positive light coke, image side surfaces can be convex surface.Wherein, the image side surfaces of the second lens has
The effective half bore DT21 for imitating the image source side surface of half bore DT22 and the second lens can meet 1.0 ＜ DT22/DT21 ＜ 1.5.
Another aspect, this application provides such a projection lens, the projection lens along optical axis by image source side into
Image side sequentially includes：The first lens with positive light coke or negative power；Second with positive light coke or negative power is saturating
Mirror；Third lens with positive light coke, image side surfaces can be convex surface.Wherein, the image side surfaces of third lens has
1.0 ＜ DT32/DT31 ＜ 1.3 can be met by imitating half bore DT32 and effective half bore DT31 of the image source side surface of third lens.
The application employs multi-disc (for example, three pieces) lens, by each power of lens of reasonable distribution, face type, each
Spacing etc. on axis between the center thickness of mirror and each lens so that above-mentioned projection lens have large-numerical aperture, miniaturization,
At least one advantageous effect such as high image quality.
Description of the drawings
With reference to attached drawing, by the detailed description of following non-limiting embodiment, other features of the application, purpose and excellent
Point will be apparent.In the accompanying drawings：
Fig. 1 shows the structure diagram of the projection lens according to the embodiment of the present application 1；
Fig. 2 shows the distortion curves of the projection lens of embodiment 1；
Fig. 3 shows the structure diagram of the projection lens according to the embodiment of the present application 2；
Fig. 4 shows the distortion curve of the projection lens of embodiment 2；
Fig. 5 shows the structure diagram of the projection lens according to the embodiment of the present application 3；
Fig. 6 shows the distortion curve of the projection lens of embodiment 3；
Fig. 7 shows the structure diagram of the projection lens according to the embodiment of the present application 4；
Fig. 8 shows the distortion curve of the projection lens of embodiment 4；
Fig. 9 shows the structure diagram of the projection lens according to the embodiment of the present application 5；
Figure 10 shows the distortion curve of the projection lens of embodiment 5；
Figure 11 shows the structure diagram of the projection lens according to the embodiment of the present application 6；
Figure 12 shows the distortion curve of the projection lens of embodiment 6；
Figure 13 shows the structure diagram of the projection lens according to the embodiment of the present application 7；
Figure 14 shows the distortion curve of the projection lens of embodiment 7；
Figure 15 shows the structure diagram of the projection lens according to the embodiment of the present application 8；
Figure 16 shows the distortion curve of the projection lens of embodiment 8.
Specific embodiment
Refer to the attached drawing is made more detailed description by the application in order to better understand to the various aspects of the application.It should
Understand, these are described in detail the only description to the illustrative embodiments of the application rather than limit the application in any way
Range.In the specification, the identical element of identical reference numbers.It states "and/or" and includes associated institute
Any and all combinations of one or more of list of items.
It should be noted that in the present specification, the statement of first, second grade is only used for a feature and another feature differentiation
It comes, and does not indicate that any restrictions to feature.Therefore, it is discussed below in the case of without departing substantially from teachings of the present application
First lens are also known as the second lens, and the second lens are also known as the first lens.
In the accompanying drawings, for convenience of description, thickness, the size and shape of lens are slightly exaggerated.Specifically, attached drawing
Shown in spherical surface or aspherical shape be illustrated by way of example.That is, spherical surface or aspherical shape are not limited to attached drawing
In the spherical surface that shows or aspherical shape.Attached drawing is merely illustrative and and non-critical drawn to scale.
Herein, near axis area refers to the region near optical axis.If lens surface is convex surface and does not define convex surface position
When putting, then it represents that the lens surface is convex surface near axis area is less than；If lens surface is concave surface and does not define the concave surface position
When, then it represents that the lens surface is concave surface near axis area is less than.It is known as image source near the surface of image source side in each lens
Side surface is known as image side surfaces in each lens near the surface into image side.
It will also be appreciated that term " comprising ", " including ", " having ", "comprising" and/or " including ", when in this theory
Represent there is stated feature, element and/or component, but do not preclude the presence or addition of one or more when being used in bright book
Other feature, element, component and/or combination thereof.In addition, ought the statement of such as at least one of " ... " appear in institute
When after the list of row feature, the individual component in entire listed feature rather than modification list is modified.In addition, when describing this
During the embodiment of application, represented " one or more embodiments of the application " using "available".Also, term " illustrative "
It is intended to refer to example or illustration.
Unless otherwise defined, otherwise all terms used herein be respectively provided with (including technical terms and scientific words) with
The application one skilled in the art's is generally understood identical meaning.It will also be appreciated that term (such as in everyday words
Term defined in allusion quotation) meaning consistent with their meanings in the context of the relevant technologies should be interpreted as having, and
It will not be explained with idealization or excessively formal sense, unless clearly so limiting herein.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The feature of the application, principle and other aspects are described in detail below.
It may include that such as three pieces have the lens of focal power according to the projection lens of the application illustrative embodiments, that is,
First lens, the second lens and third lens.This three pieces lens is along optical axis by image source side extremely into image side sequential.
In the exemplary embodiment, the first lens have positive light coke or negative power；Second lens have positive light focus
Degree or negative power；Third lens can have positive light coke.
In the exemplary embodiment, at least one of the image source side surface of the first lens and image side surfaces can be convex
Face.In some embodiments, the first lens can be image source side surface and image side surfaces are the biconvex lens on convex surface.
In the exemplary embodiment, at least one of the image source side surface of third lens and image side surfaces can be convex
Face.Optionally, the image side surfaces of third lens are convex surface.
In the exemplary embodiment, the projection lens of the application can meet 10 ° of conditional HFOV ＜, wherein, HFOV is
The maximum angle of half field-of view of projection lens.More specifically, HFOV can further meet 9 ° of HFOV ＜, for example, 7.9 °≤HFOV≤
8.4°.Meet 10 ° of conditional HFOV ＜, be conducive to the picture of the outer field of view of control shaft, to reduce the aberration of field of view outside axis,
So as to promote projection quality；Meanwhile it is also beneficial to improve field of view and the outer field of view projection depth of focus of axis and imaging on axis
The uniformity of quality.
In the exemplary embodiment, the projection lens of the application can meet 0 ＜ f3/f ＜ 18.0 of conditional, wherein, f3
For the effective focal length of third lens, f is total effective focal length of projection lens.More specifically, f3 and f can further meet 0.50 ＜
F3/f ＜ 1.60, for example, 0.56≤f3/f≤1.58.Rational focal power distribution, the advantageous miniaturization for realizing projection lens and
High projection quality.
In the exemplary embodiment, the projection lens of the application can meet -1.0 ＜ f3/f1 ＜ 30.0 of conditional,
In, f3 is the effective focal length of third lens, and f1 is the effective focal length of the first lens.More specifically, f3 and f1 can further meet-
0.50 ＜ f3/f1 ＜ 1.50, for example, -0.41≤f3/f1≤1.44.Rational focal power distribution, advantageous realization projection lens
Miniaturization and high projection quality.
In the exemplary embodiment, the projection lens of the application is in about 800nm to the light-wave band of about 1000nm, light
Line transmitance is more than 85%.It is such to be provided with to improve the transmitance that near infrared light penetrates projection lens, so as to obtain
The near-infrared projected image of more high brightness.
In the exemplary embodiment, the projection lens of the application can meet -0.5 ＜ R6/f ＜ 0 of conditional, wherein, R6
The radius of curvature of image side surfaces for third lens, f are total effective focal length of projection lens.More specifically, R6 and f are further
- 0.45 ＜ R6/f ＜ -0.20 can be met, for example, -0.39≤R6/f≤- 0.28.Reasonable Arrangement third lens imaging side surface
Bending direction and bending degree are advantageously implemented the miniaturization of projection lens and high projection quality.
In the exemplary embodiment, the projection lens of the application can meet 1.3 ＜ CT1/CT2 ＜ 1.8 of conditional,
In, CT1 is the first lens in the center thickness on optical axis, and CT2 is the second lens in the center thickness on optical axis.More specifically,
CT1 and CT2 can further meet 1.39≤CT1/CT2≤1.78.Rational size distribution, is advantageously implemented the small of projection lens
Type and image source sidelight line telecentricity promote projection efficiency.
In the exemplary embodiment, the projection lens of the application can meet 0.1 ＜ T12/CT3 ＜ 0.8 of conditional,
In, T12 is the spacing distance of the first lens and the second lens on optical axis, and CT3 is third lens in the center thickness on optical axis.
More specifically, T12 and CT3 can further meet 0.15≤T12/CT3≤0.78.Rational size distribution, is advantageously implemented throwing
The miniaturization of shadow camera lens and image source sidelight line telecentricity promote projection efficiency.
In the exemplary embodiment, the projection lens of the application can meet 1.0 ＜ DT22/DT21 ＜ 1.5 of conditional,
In, DT22 is effective half bore of the image side surfaces of the second lens, and DT21 is effectively the half of the image source side surface of the second lens
Bore.More specifically, DT22 and DT21 can further meet 1.01≤DT22/DT21≤1.49.Meet 1.0 ＜ of conditional
DT22/DT21 ＜ 1.5 are advantageously implemented the miniaturization of projection lens.
In the exemplary embodiment, the projection lens of the application can meet 1.0 ＜ DT32/DT31 ＜ 1.3 of conditional,
In, DT32 is effective half bore of the image side surfaces of third lens, and DT31 is effectively the half of the image source side surface of third lens
Bore.More specifically, DT32 and DT31 can further meet 1.07≤DT32/DT31≤1.22.Meet 1.0 ＜ of conditional
DT32/DT31 ＜ 1.3 are advantageously implemented the miniaturization of projection lens.
In the exemplary embodiment, the projection lens of the application can meet conditional TTL/f ＜ 1.4, wherein, TTL is
Distance on the image source face of projection lens to the axis of the image side surfaces of third lens, f are total effective focal length of projection lens.More
Body, TTL and f can further meet 0.90 ＜ TTL/f ＜ 1.10, for example, 0.95≤TTL/f≤1.04.Rationally control projection
The ratio of the TTL and f of camera lens are conducive to keep the miniaturization feature of projection lens.
In the exemplary embodiment, the projection lens of the application can meet 0 ＜ BF/TTL ＜ 0.5 of conditional, wherein, BF
For distance on the image source face to the axis of the image source side surface of the first lens of projection lens, TTL is the image source face of projection lens to the
Distance on the axis of the image side surfaces of three lens.More specifically, BF and TTL can further meet 0.10 ＜ BF/TTL ＜ 0.20,
For example, 0.16≤BF/TTL≤0.17.Rational size distribution, can effectively shorten the overall length of projection lens, realize miniaturization.
In the exemplary embodiment, above-mentioned projection lens may also include at least one diaphragm, to promote the imaging of camera lens
Quality.Diaphragm can be arranged as required to locate at an arbitrary position, for example, diaphragm may be provided at third lens and between image side.
Optionally, above-mentioned projection lens may also include other well known optical projection elements, for example, prism, field lens etc..It can
Selection of land, above-mentioned projection lens can be jointly used cooperatively with diffraction element.
Compared to common lens, the projection lens main distinction is, the light of general pick-up lens is from object side into image side
Form an image planes；And the light of general projection lens is from image source side into image side, by image planes enlarging projection until perspective plane.One
As the light-inletting quantity of projection lens controlled by object-side numerical aperture and camera lens diaphragm.
Such as three pieces lens can be used according to the projection lens of the above embodiment of the application, it is each by reasonable distribution
Spacing etc. on axis between the focal power of mirror, face type, the center thickness of each lens and each lens so that projection lens has big
The advantageous effects such as numerical aperture, miniaturization, high image quality.
In presently filed embodiment, at least one of minute surface of each lens is aspherical mirror.Non-spherical lens
The characteristics of be：From lens centre to lens perimeter, curvature is consecutive variations.It is constant with having from lens centre to lens perimeter
The spherical lens of curvature is different, and non-spherical lens has more preferably radius of curvature characteristic, and there is improvement to distort aberration and improve picture
The advantages of dissipating aberration.After non-spherical lens, the aberration occurred when imaging can be eliminated as much as possible, so as to improve
Image quality.
However, it will be understood by those of skill in the art that without departing from this application claims technical solution situation
Under, the lens numbers for forming projection lens can be changed, to obtain each result and the advantage described in this specification.Though for example,
It is so described by taking three pieces lens as an example in embodiments, but the projection lens is not limited to include three pieces lens.If
It needs, which may also include the lens of other quantity.
The specific embodiment for the projection lens for being applicable to the above embodiment is further described with reference to the accompanying drawings.
Embodiment 1
Referring to Fig. 1 to Fig. 2 descriptions according to the projection lens of the embodiment of the present application 1.Fig. 1 is shown according to the application reality
Apply the structure diagram of the projection lens of example 1.
As shown in Figure 1, according to the projection lens of the application illustrative embodiments along optical axis by image source side into image side according to
Sequence includes：First lens E1, the second lens E2, third lens E3 and diaphragm STO.
First lens E1 has positive light coke, and image source side surface S1 is convex surface, and image side surfaces S2 is concave surface；Second thoroughly
Mirror E2 has positive light coke, and image source side surface S3 is concave surface, and image side surfaces S4 is convex surface；Third lens E3 has positive light focus
Degree, image source side surface S5 are concave surface, and image side surfaces S6 is convex surface.In about 800nm to about 1000nm light-wave bands, the throwing
The light penetration of shadow camera lens is more than 85%.Light from image source sequentially passes through each surface S1 to S6 and is ultimately imaged and for example throwing
(not shown) on the perspective plane of shadow screen.
Table 1 shows surface type, radius of curvature, thickness, material and the circular cone of each lens of the projection lens of embodiment 1
Coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 1
As shown in Table 1, the image source side surface of any one lens and into image side table in the first lens E1 to third lens E3
Face is aspherical.In the present embodiment, the face type x of each non-spherical lens is available but is not limited to following aspherical formula progress
It limits：
Wherein, x be it is aspherical along optical axis direction when being highly the position of h, away from aspheric vertex of surface apart from rise；C is
Aspherical paraxial curvature, c=1/R (that is, paraxial curvature c is the inverse of 1 mean curvature radius R of upper table)；K for circular cone coefficient (
It has been provided in table 1)；Ai is the correction factor of aspherical i-th-th ranks.The following table 2 is given available for each aspherical in embodiment 1
The high order term coefficient A of minute surface S1-S64、A6、A8、A10、A12、A14And A16。
Table 2
Table 3 provides total effective focal length f of projection lens in embodiment 1, the effective focal length f1 to f3 of each lens and projection
The maximum angle of half field-of view HFOV of camera lens.
| Parameter | f(mm) | f1(mm) | f2(mm) | f3(mm) | HFOV(°) |
| Numerical value | 3.38 | 6.32 | 3.44 | 5.35 | 8.4 |
Table 3
Projection lens in embodiment 1 meets：
F3/f=1.58, wherein, f3 is the effective focal length of third lens E3, and f is total effective focal length of projection lens；
F3/f1=0.85, wherein, f3 is the effective focal length of third lens E3, and f1 is the effective focal length of the first lens E1；
R6/f=-0.30, wherein, R6 is the radius of curvature of the image side surfaces S6 of third lens E3, and f is projection lens
Total effective focal length；
CT1/CT2=1.57, wherein, CT1 is the first lens E1 in the center thickness on optical axis, and CT2 is the second lens E2
In the center thickness on optical axis；
T12/CT3=0.70, wherein, T12 be the spacing distance of the first lens E1 and the second lens E2 on optical axis, CT3
It is third lens E3 in the center thickness on optical axis；
DT22/DT21=1.16, wherein, effective half bores of the DT22 for the image side surfaces S4 of the second lens E2, DT21
Effective half bore of image source side surface S3 for the second lens E2；
DT32/DT31=1.21, wherein, effective half bores of the DT32 for the image side surfaces S6 of third lens E3, DT31
Effective half bore of image source side surface S5 for third lens E3；
TTL/f=1.04, wherein, TTL be image source face OBJ to the image side surfaces S6 of third lens E3 axis on distance, f
Total effective focal length for projection lens；
BF/TTL=0.16, wherein, BF is distance on the axis of the image source side surface S1 of image source face OBJ to the first lens E1,
TTL is distance on the axis of image source face OBJ to the image side surfaces S6 of third lens E3.
Fig. 2 shows the distortion curves of the projection lens of embodiment 1, represent the distortion size in the case of different visual angles
Value.As can be seen from FIG. 2, the projection lens given by embodiment 1 can realize good image quality.
Embodiment 2
Referring to Fig. 3 to Fig. 4 descriptions according to the projection lens of the embodiment of the present application 2.In the present embodiment and following implementation
In example, for brevity, by clipped description similar to Example 1.Fig. 3 shows the throwing according to the embodiment of the present application 2
The structure diagram of shadow camera lens.
As shown in figure 3, according to the projection lens of the application illustrative embodiments along optical axis by image source side into image side according to
Sequence includes：First lens E1, the second lens E2, third lens E3 and diaphragm STO.
First lens E1 has positive light coke, and image source side surface S1 is concave surface, and image side surfaces S2 is convex surface；Second thoroughly
Mirror E2 has negative power, and image source side surface S3 is concave surface, and image side surfaces S4 is convex surface；Third lens E3 has positive light focus
Degree, image source side surface S5 are convex surface, and image side surfaces S6 is convex surface.In about 800nm to about 1000nm light-wave bands, the throwing
The light penetration of shadow camera lens is more than 85%.Light from image source sequentially passes through each surface S1 to S6 and is ultimately imaged and for example throwing
(not shown) on the perspective plane of shadow screen.
Table 4 shows surface type, radius of curvature, thickness, material and the circular cone of each lens of the projection lens of embodiment 2
Coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 4
As shown in Table 4, in example 2, in the first lens E1 to third lens E3 any one lens image source side table
Face and image side surfaces are aspherical.Table 5 shows the high order term coefficient available for aspherical mirror each in embodiment 2,
In, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 |
| S1 | 6.8351E-01 | 5.2701E-01 | -1.0157E+00 | 3.6591E-01 | 1.4452E+00 |
| S2 | 2.9371E-01 | 2.5816E-01 | -5.7110E-02 | -1.5555E+00 | 3.4950E+00 |
| S3 | -5.1990E-02 | -2.1888E+00 | 8.0976E-01 | -5.2364E+00 | -2.2880E-02 |
| S4 | 2.2615E-01 | -7.2416E-01 | 7.8852E-01 | -1.3640E-02 | 1.4131E-02 |
| S5 | -3.4340E-02 | -5.0100E-03 | -3.8100E-03 | 4.7710E-03 | -1.0300E-03 |
| S6 | -7.8150E-02 | 8.9240E-03 | -9.2700E-03 | 1.4960E-03 | -6.8000E-04 |
Table 5
Table 6 provides total effective focal length f of projection lens in embodiment 2, the effective focal length f1 to f3 of each lens and projection
The maximum angle of half field-of view HFOV of camera lens.
| Parameter | f(mm) | f1(mm) | f2(mm) | f3(mm) | HFOV(°) |
| Numerical value | 3.60 | 3.97 | -1.74 | 2.40 | 8.0 |
Table 6
Fig. 4 shows the distortion curve of the projection lens of embodiment 2, represents the distortion size in the case of different visual angles
Value.As can be seen from FIG. 4, the projection lens given by embodiment 2 can realize good image quality.
Embodiment 3
The projection lens according to the embodiment of the present application 3 is described referring to Fig. 5 to Fig. 6.Fig. 5 is shown according to the application
The structure diagram of the projection lens of embodiment 3.
As shown in figure 5, according to the projection lens of the application illustrative embodiments along optical axis by image source side into image side according to
Sequence includes：First lens E1, the second lens E2, third lens E3 and diaphragm STO.
First lens E1 has positive light coke, and image source side surface S1 is convex surface, and image side surfaces S2 is convex surface；Second thoroughly
Mirror E2 has negative power, and image source side surface S3 is concave surface, and image side surfaces S4 is convex surface；Third lens E3 has positive light focus
Degree, image source side surface S5 are convex surface, and image side surfaces S6 is convex surface.In about 800nm to about 1000nm light-wave bands, the throwing
The light penetration of shadow camera lens is more than 85%.Light from image source sequentially passes through each surface S1 to S6 and is ultimately imaged and for example throwing
(not shown) on the perspective plane of shadow screen.
Table 7 shows surface type, radius of curvature, thickness, material and the circular cone of each lens of the projection lens of embodiment 3
Coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 7
As shown in Table 7, in embodiment 3, in the first lens E1 to third lens E3 any one lens image source side table
Face and image side surfaces are aspherical.Table 8 shows the high order term coefficient available for aspherical mirror each in embodiment 3,
In, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 8.1772E-01 | 1.9586E-01 | -1.2690E+00 | 4.4820E+00 | -8.6822E+00 | 1.2180E+01 | -7.6760E+00 |
| S2 | 4.8126E-01 | 1.8981E-01 | -1.3418E+00 | 8.9492E+00 | -4.2799E+01 | 1.1981E+02 | -1.5560E+02 |
| S3 | 8.0382E-02 | -3.3871E+00 | 2.0978E+00 | 1.9198E+00 | -9.5609E+01 | 3.4126E+02 | -7.0140E+02 |
| S4 | 2.5353E-01 | -9.7331E-01 | 1.0812E+00 | 1.7342E+00 | -8.0399E+00 | 1.2775E+01 | -7.2752E+00 |
| S5 | -1.5080E-02 | -5.4730E-02 | 9.7142E-02 | -1.1644E-01 | 8.8297E-02 | -3.6150E-02 | 6.0590E-03 |
| S6 | -7.9820E-02 | 6.1200E-03 | -5.8700E-03 | 3.2270E-03 | -4.8200E-03 | 2.8270E-03 | -6.0000E-04 |
Table 8
Table 9 provides total effective focal length f of projection lens in embodiment 3, the effective focal length f1 to f3 of each lens and projection
The maximum angle of half field-of view HFOV of camera lens.
| Parameter | f(mm) | f1(mm) | f2(mm) | f3(mm) | HFOV(°) |
| Numerical value | 3.56 | 4.20 | -1.83 | 2.43 | 8.1 |
Table 9
Fig. 6 shows the distortion curve of the projection lens of embodiment 3, represents the distortion size in the case of different visual angles
Value.As can be seen from FIG. 6, the projection lens given by embodiment 3 can realize good image quality.
Embodiment 4
The projection lens according to the embodiment of the present application 4 is described referring to Fig. 7 to Fig. 8.Fig. 7 is shown according to the application
The structure diagram of the projection lens of embodiment 4.
As shown in fig. 7, according to the projection lens of the application illustrative embodiments along optical axis by image source side into image side according to
Sequence includes：First lens E1, the second lens E2, third lens E3 and diaphragm STO.
First lens E1 has positive light coke, and image source side surface S1 is concave surface, and image side surfaces S2 is convex surface；Second thoroughly
Mirror E2 has negative power, and image source side surface S3 is concave surface, and image side surfaces S4 is concave surface；Third lens E3 has positive light focus
Degree, image source side surface S5 are concave surface, and image side surfaces S6 is convex surface.In about 800nm to about 1000nm light-wave bands, the throwing
The light penetration of shadow camera lens is more than 85%.Light from image source sequentially passes through each surface S1 to S6 and is ultimately imaged and for example throwing
(not shown) on the perspective plane of shadow screen.
Table 10 shows surface type, radius of curvature, thickness, material and the circle of each lens of the projection lens of embodiment 4
Coefficient is bored, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 10
As shown in Table 10, in example 4, in the first lens E1 to third lens E3 any one lens image source side table
Face and image side surfaces are aspherical.Table 11 shows the high order term coefficient available for aspherical mirror each in embodiment 4,
In, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 11
Table 12 provides total effective focal length f of projection lens in embodiment 4, the effective focal length f1 to f3 of each lens and projection
The maximum angle of half field-of view HFOV of camera lens.
| Parameter | f(mm) | f1(mm) | f2(mm) | f3(mm) | HFOV(°) |
| Numerical value | 3.45 | 1.78 | -1.14 | 2.51 | 8.3 |
Table 12
Fig. 8 shows the distortion curve of the projection lens of embodiment 4, represents the distortion size in the case of different visual angles
Value.As can be seen from FIG. 8, the projection lens given by embodiment 4 can realize good image quality.
Embodiment 5
The projection lens according to the embodiment of the present application 5 is described referring to Fig. 9 to Figure 10.Fig. 9 is shown according to this Shen
Please embodiment 5 projection lens structure diagram.
As shown in figure 9, according to the projection lens of the application illustrative embodiments along optical axis by image source side into image side according to
Sequence includes：First lens E1, the second lens E2, third lens E3 and diaphragm STO.
First lens E1 has positive light coke, and image source side surface S1 is convex surface, and image side surfaces S2 is convex surface；Second thoroughly
Mirror E2 has negative power, and image source side surface S3 is concave surface, and image side surfaces S4 is concave surface；Third lens E3 has positive light focus
Degree, image source side surface S5 are concave surface, and image side surfaces S6 is convex surface.In about 800nm to about 1000nm light-wave bands, the throwing
The light penetration of shadow camera lens is more than 85%.Light from image source sequentially passes through each surface S1 to S6 and is ultimately imaged and for example throwing
(not shown) on the perspective plane of shadow screen.
Table 13 shows surface type, radius of curvature, thickness, material and the circle of each lens of the projection lens of embodiment 5
Coefficient is bored, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 13
As shown in Table 13, in embodiment 5, the image source side table of any one lens in the first lens E1 to third lens E3
Face and image side surfaces are aspherical.Table 14 shows the high order term coefficient available for aspherical mirror each in embodiment 5,
In, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 |
| S1 | 4.0492E-02 | -6.2450E-02 | 3.8444E-01 | -2.4728E-01 | 2.3434E-01 |
| S2 | -1.8559E-01 | 3.1456E-01 | -1.0484E-01 | -5.2760E-02 | 4.3063E-01 |
| S3 | 1.4242E-01 | 1.9738E+00 | -7.7372E+00 | 1.4805E+01 | -1.6900E+01 |
| S4 | 7.1021E-01 | 1.3595E+00 | -4.3531E+00 | 1.3515E+01 | -1.9659E+01 |
| S5 | -5.3760E-02 | 5.6370E-03 | -8.5300E-03 | -1.8520E-02 | 3.2693E-02 |
| S6 | 1.9140E-03 | 8.1600E-04 | -9.0000E-04 | 9.1800E-04 | -3.1200E-03 |
Table 14
Table 15 provides total effective focal length f of projection lens in embodiment 5, the effective focal length f1 to f3 of each lens and projection
The maximum angle of half field-of view HFOV of camera lens.
| Parameter | f(mm) | f1(mm) | f2(mm) | f3(mm) | HFOV(°) |
| Numerical value | 3.54 | 1.41 | -0.85 | 2.03 | 8.1 |
Table 15
Figure 10 shows the distortion curve of the projection lens of embodiment 5, represents the distortion size in the case of different visual angles
Value.As can be seen from FIG. 10, the projection lens given by embodiment 5 can realize good image quality.
Embodiment 6
The projection lens according to the embodiment of the present application 6 is described referring to Figure 11 to Figure 12.Figure 11 is shown according to this
Apply for the structure diagram of the projection lens of embodiment 6.
As shown in figure 11, according to the projection lens of the application illustrative embodiments along optical axis by image source side into image side according to
Sequence includes：First lens E1, the second lens E2, third lens E3 and diaphragm STO.
First lens E1 has positive light coke, and image source side surface S1 is convex surface, and image side surfaces S2 is convex surface；Second thoroughly
Mirror E2 has negative power, and image source side surface S3 is concave surface, and image side surfaces S4 is concave surface；Third lens E3 has positive light focus
Degree, image source side surface S5 are convex surface, and image side surfaces S6 is convex surface.In about 800nm to about 1000nm light-wave bands, the throwing
The light penetration of shadow camera lens is more than 85%.Light from image source sequentially passes through each surface S1 to S6 and is ultimately imaged and for example throwing
(not shown) on the perspective plane of shadow screen.
Table 16 shows surface type, radius of curvature, thickness, material and the circle of each lens of the projection lens of embodiment 6
Coefficient is bored, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 16
As shown in Table 16, in embodiment 6, the image source side table of any one lens in the first lens E1 to third lens E3
Face and image side surfaces are aspherical.Table 17 shows the high order term coefficient available for aspherical mirror each in embodiment 6,
In, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 |
| S1 | 1.1960E-03 | 2.4802E-01 | -2.2374E-01 | 5.6552E-01 | -9.9505E-01 |
| S2 | -3.4922E-01 | 6.0953E-01 | -8.8702E-01 | 1.3545E+00 | -1.2899E+00 |
| S3 | -1.6735E+00 | 9.3122E+00 | -2.0874E+01 | 2.5616E+01 | 1.0551E+01 |
| S4 | 3.5970E-03 | 4.0683E+00 | -1.3595E+01 | 3.0584E+01 | -3.4256E+01 |
| S5 | -8.7590E-02 | 4.4488E-02 | -1.5820E-02 | 1.6401E-02 | 5.9630E-03 |
| S6 | -1.4270E-02 | -1.0000E-02 | -3.2100E-03 | -4.9600E-03 | 2.1800E-04 |
Table 17
Table 18 provides total effective focal length f of projection lens in embodiment 6, the effective focal length f1 to f3 of each lens and projection
The maximum angle of half field-of view HFOV of camera lens.
| Parameter | f(mm) | f1(mm) | f2(mm) | f3(mm) | HFOV(°) |
| Numerical value | 3.61 | 1.46 | -0.86 | 2.03 | 7.9 |
Table 18
Figure 12 shows the distortion curve of the projection lens of embodiment 6, represents the distortion size in the case of different visual angles
Value.As can be seen from FIG. 12, the projection lens given by embodiment 6 can realize good image quality.
Embodiment 7
The projection lens according to the embodiment of the present application 7 is described referring to Figure 13 to Figure 14.Figure 13 is shown according to this
Apply for the structure diagram of the projection lens of embodiment 7.
As shown in figure 13, according to the projection lens of the application illustrative embodiments along optical axis by image source side into image side according to
Sequence includes：First lens E1, the second lens E2, third lens E3 and diaphragm STO.
First lens E1 has negative power, and image source side surface S1 is convex surface, and image side surfaces S2 is concave surface；Second thoroughly
Mirror E2 has negative power, and image source side surface S3 is concave surface, and image side surfaces S4 is concave surface；Third lens E3 has positive light focus
Degree, image source side surface S5 are concave surface, and image side surfaces S6 is convex surface.In about 800nm to about 1000nm light-wave bands, the throwing
The light penetration of shadow camera lens is more than 85%.Light from image source sequentially passes through each surface S1 to S6 and is ultimately imaged and for example throwing
(not shown) on the perspective plane of shadow screen.
Table 19 shows surface type, radius of curvature, thickness, material and the circle of each lens of the projection lens of embodiment 7
Coefficient is bored, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 19
As shown in Table 19, in embodiment 7, the image source side table of any one lens in the first lens E1 to third lens E3
Face and image side surfaces are aspherical.Table 20 shows the high order term coefficient available for aspherical mirror each in embodiment 7,
In, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 8.0618E-01 | -7.5892E-01 | 1.9544E+00 | -2.8636E+00 | 3.1036E+00 | -1.7204E+01 | 2.7633E+01 |
| S2 | 8.9737E-01 | -2.0510E-02 | 6.1155E+00 | -4.1610E+01 | 3.0605E+02 | -1.0950E+03 | 1.3164E+03 |
| S3 | -1.7417E-01 | -1.4934E-01 | -5.2188E+00 | 4.2122E+01 | -1.9097E+02 | 4.6483E+02 | -4.9756E+02 |
| S4 | 4.6213E-01 | -1.3016E+00 | 2.4156E+00 | -2.5912E+00 | 7.9924E-01 | 6.0891E-01 | -3.4623E-01 |
| S5 | -8.9400E-03 | -1.7000E-04 | 4.5942E-02 | -1.9390E-02 | -1.8840E-02 | 1.0944E-02 | -1.7800E-03 |
| S6 | 1.4138E-02 | 3.5000E-04 | 3.4980E-03 | 2.8280E-03 | -1.3800E-03 | 8.0300E-04 | 4.9700E-04 |
Table 20
Table 21 provides total effective focal length f of projection lens in embodiment 7, the effective focal length f1 to f3 of each lens and projection
The maximum angle of half field-of view HFOV of camera lens.
| Parameter | f(mm) | f1(mm) | f2(mm) | f3(mm) | HFOV(°) |
| Numerical value | 3.64 | -161.54 | -4.77 | 2.46 | 7.9 |
Table 21
Figure 14 shows the distortion curve of the projection lens of embodiment 7, represents the distortion size in the case of different visual angles
Value.As can be seen from FIG. 14, the projection lens given by embodiment 7 can realize good image quality.
Embodiment 8
The projection lens according to the embodiment of the present application 8 is described referring to Figure 15 to Figure 16.Figure 15 is shown according to this
Apply for the structure diagram of the projection lens of embodiment 8.
As shown in figure 15, according to the projection lens of the application illustrative embodiments along optical axis by image source side into image side according to
Sequence includes：First lens E1, the second lens E2, third lens E3 and diaphragm STO.
First lens E1 has negative power, and image source side surface S1 is convex surface, and image side surfaces S2 is concave surface；Second thoroughly
Mirror E2 has positive light coke, and image source side surface S3 is convex surface, and image side surfaces S4 is convex surface；Third lens E3 has positive light focus
Degree, image source side surface S5 are concave surface, and image side surfaces S6 is convex surface.In about 800nm to about 1000nm light-wave bands, the throwing
The light penetration of shadow camera lens is more than 85%.Light from image source sequentially passes through each surface S1 to S6 and is ultimately imaged and for example throwing
(not shown) on the perspective plane of shadow screen.
Table 22 shows surface type, radius of curvature, thickness, material and the circle of each lens of the projection lens of embodiment 8
Coefficient is bored, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 22
As shown in Table 22, in embodiment 8, the image source side table of any one lens in the first lens E1 to third lens E3
Face and image side surfaces are aspherical.Table 23 shows the high order term coefficient available for aspherical mirror each in embodiment 8,
In, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 7.8499E-01 | -1.0106E+00 | 2.7814E+00 | -5.0633E+00 | 7.5914E+00 | -4.1043E+01 | 6.5116E+01 |
| S2 | 9.7041E-01 | -4.7130E-02 | 5.4882E+00 | -4.6017E+01 | 2.9310E+02 | -1.1282E+03 | 1.4964E+03 |
| S3 | -1.4075E-01 | -5.7600E-02 | -5.0503E+00 | 4.1943E+01 | -1.9223E+02 | 4.6447E+02 | -4.8365E+02 |
| S4 | 4.4525E-01 | -1.3057E+00 | 2.4192E+00 | -2.5876E+00 | 7.9885E-01 | 6.0701E-01 | -3.3933E-01 |
| S5 | -7.4900E-03 | 1.0790E-03 | 4.6866E-02 | -1.8170E-02 | -1.7640E-02 | 1.1582E-02 | -2.0100E-03 |
| S6 | 1.8257E-02 | -5.5000E-04 | 3.5640E-03 | 3.0350E-03 | -1.3500E-03 | 7.2700E-04 | 4.0300E-04 |
Table 23
Table 24 provides total effective focal length f of projection lens in embodiment 8, the effective focal length f1 to f3 of each lens and projection
The maximum angle of half field-of view HFOV of camera lens.
| Parameter | f(mm) | f1(mm) | f2(mm) | f3(mm) | HFOV(°) |
| Numerical value | 3.57 | -6.74 | 30.68 | 2.75 | 8.0 |
Table 24
Figure 16 shows the distortion curve of the projection lens of embodiment 8, represents the distortion size in the case of different visual angles
Value.As can be seen from FIG. 16, the projection lens given by embodiment 8 can realize good image quality.
To sum up, embodiment 1 to embodiment 8 meets the relationship shown in table 25 respectively.
Table 25
The preferred embodiment and the explanation to institute's application technology principle that above description is only the application.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology that the specific combination of above-mentioned technical characteristic forms
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
The other technical solutions for arbitrarily combining and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical solution that the technical characteristic of energy is replaced mutually and formed.
Claims (19)
1. projection lens, which is characterized in that the projection lens is extremely sequentially included along optical axis by image source side into image side：
The first lens with positive light coke or negative power；
The second lens with positive light coke or negative power；
Third lens with positive light coke, image side surfaces are convex surface；
The image source face of the projection lens to the third lens distance TTL of the image side surfaces on the optical axis with it is described
Total effective focal length f of projection lens meets TTL/f ＜ 1.4；
The effective focal length f3 of the third lens meets 0 ＜ f3/f ＜ 18.0 with total effective focal length f of the projection lens.
2. projection lens according to claim 1, which is characterized in that first lens are thick in the center on the optical axis
It spends CT1 and meets 1.3 ＜ CT1/CT2 ＜ 1.8 in the center thickness CT2 on the optical axis with second lens.
3. projection lens according to claim 1, which is characterized in that the curvature of the image side surfaces of the third lens half
Diameter R6 and total effective focal length f of the projection lens meet -0.5 ＜ R6/f ＜ 0.
4. projection lens according to claim 1, which is characterized in that first lens and second lens are described
Spacing distance T12 on optical axis meets 0.1 ＜ T12/CT3 ＜ with the third lens in the center thickness CT3 on the optical axis
0.8。
5. projection lens according to claim 1, which is characterized in that effectively the half of the image side surfaces of second lens
Bore DT22 and effective half bore DT21 of the image source side surface of second lens meet 1.0 ＜ DT22/DT21 ＜ 1.5.
6. projection lens according to claim 1, which is characterized in that effectively the half of the image side surfaces of the third lens
Bore DT32 and effective half bore DT31 of the image source side surface of the third lens meet 1.0 ＜ DT32/DT31 ＜ 1.3.
7. projection lens according to any one of claim 1 to 6, which is characterized in that the projection lens maximum half
Field angle HFOV meets 10 ° of HFOV ＜.
8. projection lens according to any one of claim 1 to 6, which is characterized in that in the light wave of 800nm to 1000nm
In wave band, the light penetration of the projection lens is more than 85%.
9. projection lens according to any one of claim 1 to 6, which is characterized in that the image source face of the projection lens
To first lens distance BF of the image source side surface on the optical axis and the projection lens image source face to described the
Distance TTL of the image side surfaces of three lens on the optical axis meets 0 ＜ BF/TTL ＜ 0.5.
10. projection lens, which is characterized in that the projection lens is extremely sequentially included along optical axis by image source side into image side：
The first lens with positive light coke or negative power；
The second lens with positive light coke or negative power；
Third lens with positive light coke, image side surfaces are convex surface；
The image source face of the projection lens to the third lens distance TTL of the image side surfaces on the optical axis with it is described
Total effective focal length f of projection lens meets TTL/f ＜ 1.4；
The effective focal length f3 of the third lens and the effective focal length f1 of first lens meet -1.0 ＜ f3/f1 ＜ 30.0.
11. projection lens according to claim 10, which is characterized in that the image side surfaces of second lens it is effective
Half bore DT22 and effective half bore DT21 of the image source side surface of second lens meet 1.0 ＜ DT22/DT21 ＜ 1.5.
12. projection lens according to claim 10, which is characterized in that the image side surfaces of the third lens it is effective
Half bore DT32 and effective half bore DT31 of the image source side surface of the third lens meet 1.0 ＜ DT32/DT31 ＜ 1.3.
13. projection lens according to claim 10, which is characterized in that the effective focal length f3 of the third lens with it is described
Total effective focal length f of projection lens meets 0.5 ＜ f3/f ＜ 1.6.
14. projection lens according to claim 13, which is characterized in that the curvature of the image side surfaces of the third lens
Radius R6 and total effective focal length f of the projection lens meet -0.5 ＜ R6/f ＜ 0.
15. projection lens according to claim 10, which is characterized in that first lens and second lens are in institute
The spacing distance T12 stated on optical axis meets 0.1 ＜ T12/CT3 with the third lens in the center thickness CT3 on the optical axis
＜ 0.8.
16. projection lens according to claim 15, which is characterized in that first lens are in the center on the optical axis
Thickness CT1 meets 1.3 ＜ CT1/CT2 ＜ 1.8 with second lens in the center thickness CT2 on the optical axis.
17. the projection lens according to any one of claim 10 to 16, which is characterized in that the maximum of the projection lens
Angle of half field-of view HFOV meets 10 ° of HFOV ＜.
18. the projection lens according to any one of claim 10 to 16, which is characterized in that in 800nm to 1000nm's
In light-wave band, the light penetration of the projection lens is more than 85%.
19. the projection lens according to any one of claim 10 to 16, which is characterized in that the image source of the projection lens
The image source face of distance BF of face to the image source side surface of first lens on the optical axis and the projection lens is to described
Distance TTL of the image side surfaces of third lens on the optical axis meets 0 ＜ BF/TTL ＜ 0.5.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721731020.1U CN207516710U (en) | 2017-12-13 | 2017-12-13 | Projection lens |
| PCT/CN2018/087036 WO2019114190A1 (en) | 2017-12-13 | 2018-05-16 | Projection lens |
| US16/226,945 US11137573B2 (en) | 2017-12-13 | 2018-12-20 | Projection lens assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721731020.1U CN207516710U (en) | 2017-12-13 | 2017-12-13 | Projection lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207516710U true CN207516710U (en) | 2018-06-19 |
Family
ID=62544283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721731020.1U Active CN207516710U (en) | 2017-12-13 | 2017-12-13 | Projection lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207516710U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861316A (en) * | 2017-12-13 | 2018-03-30 | 浙江舜宇光学有限公司 | Projection lens |
| CN112684586A (en) * | 2021-01-11 | 2021-04-20 | 南昌欧菲光电技术有限公司 | Optical system, camera module and terminal equipment |
| CN112925084A (en) * | 2019-12-06 | 2021-06-08 | 声远精密光学股份有限公司 | Fingerprint identification module and optical imaging lens |
| US11137573B2 (en) | 2017-12-13 | 2021-10-05 | Zhejiang Sunny Optical Co., Ltd. | Projection lens assembly |
| TWI788712B (en) * | 2020-09-24 | 2023-01-01 | 大陸商玉晶光電（廈門）有限公司 | Optical lens assembly |
| CN116068730A (en) * | 2023-03-20 | 2023-05-05 | 江西联创电子有限公司 | Projection lens |
-
2017
- 2017-12-13 CN CN201721731020.1U patent/CN207516710U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861316A (en) * | 2017-12-13 | 2018-03-30 | 浙江舜宇光学有限公司 | Projection lens |
| CN107861316B (en) * | 2017-12-13 | 2019-10-18 | 浙江舜宇光学有限公司 | Projection lens |
| US11137573B2 (en) | 2017-12-13 | 2021-10-05 | Zhejiang Sunny Optical Co., Ltd. | Projection lens assembly |
| CN112925084A (en) * | 2019-12-06 | 2021-06-08 | 声远精密光学股份有限公司 | Fingerprint identification module and optical imaging lens |
| TWI788712B (en) * | 2020-09-24 | 2023-01-01 | 大陸商玉晶光電（廈門）有限公司 | Optical lens assembly |
| US11982789B2 (en) | 2020-09-24 | 2024-05-14 | Genius Electronic Optical (Xiamen) Co., Ltd. | Optical lens assembly |
| CN112684586A (en) * | 2021-01-11 | 2021-04-20 | 南昌欧菲光电技术有限公司 | Optical system, camera module and terminal equipment |
| CN116068730A (en) * | 2023-03-20 | 2023-05-05 | 江西联创电子有限公司 | Projection lens |
| CN116068730B (en) * | 2023-03-20 | 2023-09-12 | 江西联创电子有限公司 | projection lens |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107861316B (en) | Projection lens | |
| CN207516710U (en) | Projection lens | |
| CN110082890A (en) | Optical imaging lens | |
| CN108152934A (en) | Optical imaging lens | |
| CN107643586A (en) | Imaging lens system group | |
| CN107272165B (en) | Imaging lens system group | |
| CN107367827A (en) | Optical imaging lens | |
| CN207473174U (en) | Imaging lens system group | |
| CN207473185U (en) | Projection lens | |
| CN207516711U (en) | Projection lens | |
| CN108427183A (en) | Projection lens | |
| CN207123647U (en) | Pick-up lens | |
| CN107861317B (en) | Projection lens | |
| CN107783258A (en) | Projection lens | |
| CN207516629U (en) | Optical imaging lens | |
| CN207264009U (en) | Imaging lens system group | |
| CN108279483A (en) | Pick-up lens group | |
| CN207008164U (en) | Imaging lens system group | |
| CN206990889U (en) | Optical imaging system | |
| CN107608057A (en) | Imaging lens system group | |
| CN109116522A (en) | Pick-up lens | |
| CN108490587A (en) | Imaging lens | |
| CN108333723A (en) | Optical imaging lens | |
| CN107422459A (en) | Pick-up lens | |
| CN208833990U (en) | Optical lens group |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |