CN109782421A - The infrared Single wavelength of three-chip type projects lens set - Google Patents
The infrared Single wavelength of three-chip type projects lens set Download PDFInfo
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- CN109782421A CN109782421A CN201711119742.6A CN201711119742A CN109782421A CN 109782421 A CN109782421 A CN 109782421A CN 201711119742 A CN201711119742 A CN 201711119742A CN 109782421 A CN109782421 A CN 109782421A
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Abstract
The present invention is that a kind of infrared Single wavelength of three-chip type projects lens set, and by sequentially including at image side to image source side: one first lens have positive refracting power；One second lens have negative refracting power；One the third lens have positive refracting power；One aperture is arranged in front of the image source side surface of first lens or between the image side surfaces of first lens and the image source side surface of the second lens.Reach a kind of infrared Single wavelength projection lens set of the three-chip type with preferable image sensing function as a result,.
Description
Technical field
The present invention be with projection lens set it is related, particularly relate to a kind of red applied to the miniaturization three-chip type on electronic product
Outer Single wavelength projects lens set.
Background technique
Digital audio-effect processing is constantly brought forth new ideas, is changed now, especially the digital carrier in digital camera and mobile phone etc.
All towards miniaturization, and photosensory assembly such as CCD or CMOS is made also to be required smallerization, in infrared ray focusing lens application,
In addition to applying in photography, it is widely used in infrared receiver and the induction field of game machine, and also in recent years to make it
The range that game machine incudes user is broader, at present the lens set of receiving infrared-ray wavelength, mostly biggish wide with field angle
Angle lens set is mainstream.
Wherein, applicant previously also proposes the related received lens set of IR wavelength of more than one piece, but at present game machine be with
Based on more three-dimensional, the true and 3D game of telepresenc, therefore with regard to the lens set that the prior art or applicant are previously proposed, all with
The plane game detecting of 2D is demand, so that being unable to satisfy 3D game stresses the effect of depth feelings are answered.
Furthermore the related dedicated infrared receiver of game machine, induction lens set use glass lens to pursue cheap,
One it is poor to carry out material translucency is to influence one of game machine depth insufficient detection precision key element, two come glass lens be easy in
Environment temperature overheat or supercooling so that lens set focal length change and can not exact focus detecting, as described above, be at present it is infrared
The lens set of line wavelength reception is unable to satisfy the two big technical tasks that 3D game depth distance accurately incudes.
In view of this, how to provide a kind of accurate depth distance detecting, receive, and prevent from lens set focal length from changing influencing
Depth detects effect, is the received lens set of the IR wavelength technical bottleneck suddenly to be overcome at present then.
Summary of the invention
The purpose of the present invention is to provide a kind of infrared Single wavelengths of three-chip type to project lens set, espespecially a kind of to have preferable shadow
As the infrared Single wavelength of the three-chip type of sensing function projects lens set.
Therefore, in order to reach foregoing purpose, the infrared Single wavelength of a kind of three-chip type provided by the present invention projects lens set, by
Sequentially include at image side to image source side: one first lens have positive refracting power, are convex surface at image side surfaces dipped beam axis,
Image side surfaces are aspherical with an image source side surface at least surface；One second lens have negative refracting power, image source side surface
It is concave surface at dipped beam axis, image side surfaces are aspherical with an image source side surface at least surface.One the third lens have and just bend
Power is rolled over, is concave surface at image side surfaces dipped beam axis, is convex surface, image side surfaces and image source at the dipped beam axis of image source side surface
A side surface at least surface is aspherical.One aperture, is arranged in front of the image source side surface of first lens or first lens
Image side surfaces and the second lens image source side surface between.
Preferably, wherein the whole focal length of the infrared Single wavelength projection lens set of the three-chip type is f, first lens and second
The synthesis focal length of lens is f12, and meets following condition: 0.6 < f/f12 < 1.6.Whereby, through the first lens and the second lens
Refracting power it is appropriately configured, effectively have both the characteristic of big visual angle and miniaturization.
Preferably, wherein the whole focal length of the infrared Single wavelength projection lens set of the three-chip type is f, second lens and third
The synthesis focal length of lens is f23, and meets following condition: 0.1 < f/f23 < 1.3.Whereby, the infrared Single wavelength projection of the three-chip type
Lens set can obtain balance between optics overall length and amendment aberration in shortening.
Preferably, wherein the focal length of first lens is f1, and the focal length of second lens is f2, and meets following condition :-
3.0<f1/f2<-1.7.Whereby, make the refracting power configuration of first lens and second lens more appropriate, can advantageously reduce
The excessive increase of system aberration.
Preferably, wherein the focal length of second lens is f2, and the focal length of the third lens is f3, and meets following condition :-
0.55<f2/f3<-0.15.Whereby, second lens and the refracting power configuration of the third lens are balanced more, facilitate aberration
Amendment and susceptibility reduction.
Preferably, wherein the focal length of first lens is f1, and the focal length of the third lens is f3, and meets following condition:
0.5<f1/f3<1.3.Whereby, the positive refracting power for effectively distributing the first lens reduces the infrared Single wavelength projection eyeglass of the three-chip type
The susceptibility of group.
Preferably, wherein the focal length of first lens is f1, and the synthesis focal length of second lens and the third lens is f23,
And meet following condition: 0.02 < f1/f23 < 0.46.Whereby, the resolving power of the infrared Single wavelength projection lens set of the three-chip type is aobvious
It writes and is promoted.
Preferably, wherein the synthesis focal length of first lens and the second lens is f12, and the focal length of the third lens is f3,
And meet following condition: 1.34 < f12/f3 < 4.05.Whereby, the resolving power of the infrared Single wavelength projection lens set of the three-chip type is aobvious
It writes and is promoted.
Preferably, wherein the image side surfaces radius of curvature of first lens is R1, the image source side surface of first lens
Radius of curvature is R2, and meets following condition: -3.38 < R1/R2 < 0.45.Whereby, the infrared Single wavelength of the three-chip type is effectively reduced
Project the spherical aberration and astigmatism of lens set.
Preferably, wherein the image side surfaces radius of curvature of second lens is R3, the image source side surface of second lens
Radius of curvature is R4, and meets following condition: -1.87 < R3/R4 < 6.23.Whereby, the infrared Single wavelength of the three-chip type is effectively reduced
Project the spherical aberration and astigmatism of lens set.
Preferably, wherein the image side surfaces radius of curvature of the third lens is R5, the image source side surface of the third lens
Radius of curvature is R6, and meets following condition: 0.5 < R5/R6 < 3.2.Whereby, the infrared Single wavelength projection of the three-chip type is effectively reduced
The spherical aberration and astigmatism of lens set.
Preferably, wherein first lens on optical axis with a thickness of CT1, second lens on optical axis with a thickness of
CT2, and meet following condition: 0.8 < CT1/CT2 < 3.5.Whereby, the mouldability and homogenieity of lens be can help to.
Preferably, wherein second lens on optical axis with a thickness of CT2, the third lens on optical axis with a thickness of
CT3, and meet following condition: 0.1 < CT2/CT3 < 1.6.Whereby, it allows between image quality and susceptibility and obtains balance appropriate.
Preferably, wherein first lens on optical axis with a thickness of CT1, the third lens on optical axis with a thickness of
CT3, and meet following condition: 0.1 < CT1/CT3 < 1.1.Whereby, the mouldability and homogenieity of lens be can help to.
Preferably, wherein the whole focal length of the infrared Single wavelength projection lens set of the three-chip type is f, the imaging of first lens
Side surface to image source face is TL in the distance on optical axis, and meets following condition: 1.0 < f/TL < 2.0.Whereby, can be conducive to tie up
The miniaturization of the infrared Single wavelength projection lens set of the three-chip type is held, to be equipped on frivolous electronic product.
Preferably, wherein the refractive index of first lens is n1, and the refractive index of second lens is n2, the third lens
Refractive index is n3, and meets following condition: n1, n2, n3 > 1.6.Whereby, be conducive to the infrared Single wavelength projection lens of whole three-chip type
The lens matching and reconciliation of piece group, to provide preferred aberration balancing ability.
It is related the present invention to reach above-mentioned purpose, used technology, means and other the effect of, hereby lift five preferably may be used
Row embodiment is simultaneously described in detail with the accompanying drawings as follows.
Detailed description of the invention
Figure 1A is the schematic diagram of the infrared Single wavelength projection lens set of three-chip type of first embodiment of the invention.
Figure 1B is sequentially the non-dots astigmat, askew of the three-chip type infrared Single wavelength projection lens set of first embodiment from left to right
Bent astigmat curve graph.
Fig. 2A is the schematic diagram of the infrared Single wavelength projection lens set of three-chip type of second embodiment of the invention.
Fig. 2 B is sequentially the non-dots astigmat, askew of the three-chip type infrared Single wavelength projection lens set of second embodiment from left to right
Bent astigmat curve graph.
Fig. 3 A is the schematic diagram of the infrared Single wavelength projection lens set of three-chip type of third embodiment of the invention.
Fig. 3 B is sequentially the non-dots astigmat, askew of the three-chip type infrared Single wavelength projection lens set of 3rd embodiment from left to right
Bent astigmat curve graph.
Fig. 4 A is the schematic diagram of the infrared Single wavelength projection lens set of three-chip type of fourth embodiment of the invention.
Fig. 4 B is sequentially the non-dots astigmat, askew of the three-chip type infrared Single wavelength projection lens set of fourth embodiment from left to right
Bent astigmat curve graph.
Fig. 5 A is the schematic diagram of the infrared Single wavelength projection lens set of three-chip type of fifth embodiment of the invention.
Fig. 5 B is sequentially the non-dots astigmat, askew of the three-chip type infrared Single wavelength projection lens set of fourth embodiment from left to right
Bent astigmat curve graph.
Description of symbols.
100,200,300,400,500: aperture
110,210,310,410,510: the first lens
111,211,311,411,511: image side surfaces
112,212,312,412,512: image source side surface
120,220,320,420,520: the second lens
121,221,321,421,521: image side surfaces
122,222,322,422,522: image source side surface
130,230,330,430,530: the third lens
131,231,331,431,531: image side surfaces
132,232,332,432,532: image source side surface
180,280,380,480,580: image source face
190,290,390,490,590: optical axis
F: the focal length of the infrared Single wavelength projection lens set of three-chip type
Fno: the f-number of the infrared Single wavelength projection lens set of three-chip type
FOV: maximum field of view angle in the infrared Single wavelength projection lens set of three-chip type
The focal length of f1: the first lens
The focal length of f2: the second lens
F3: the focal length of the third lens
The synthesis focal length of f12: the first lens and the second lens
The synthesis focal length of f23: the second lens and the third lens
The image side surfaces radius of curvature of R1: the first lens
The image source side surface radius of curvature of R2: the first lens
The image side surfaces radius of curvature of R3: the second lens
The image source side surface radius of curvature of R4: the second lens
R5: the image side surfaces radius of curvature of the third lens
R6: the image source side surface radius of curvature of the third lens
CT1: the first lens are in the thickness on optical axis
CT2: the second lens are in the thickness on optical axis
CT3: the third lens are in the thickness on optical axis
The image side surfaces of TL: the first lens are to image source face in the distance on optical axis.
Specific embodiment
<first embodiment>
Figure 1A and Figure 1B is please referred to, wherein Figure 1A is painted throws according to the infrared Single wavelength of three-chip type of first embodiment of the invention
The schematic diagram of shadow lens set, Figure 1B are sequentially the non-of the infrared Single wavelength projection lens set of three-chip type of first embodiment from left to right
Point astigmat distorts astigmat curve graph.By Figure 1A it is found that the infrared Single wavelength projection eyeglass system of three-chip type includes an aperture 100
With an optics group, the optics group is by sequentially including the first lens 110, the second lens 120, the third lens at image side to image source side
130 and image source face 180, wherein having the lens of refracting power in the infrared Single wavelength projection lens set of the three-chip type is three pieces.The light
Circle 100 is arranged between the image side surfaces 111 of first lens 110 and the image side surfaces 121 of second lens 120.
First lens 110 have positive refracting power, and are plastic material, are convex at 111 dipped beam axis 190 of image side surfaces
Face is convex surface at 112 dipped beam axis 190 of image source side surface, and the image side surfaces 111 and image source side surface 112 are all aspheric
Face.
Second lens 120 have negative refracting power, and are plastic material, are convex at 121 dipped beam axis 190 of image side surfaces
Face is concave surface at 122 dipped beam axis 190 of image source side surface, and the image side surfaces 121 and image source side surface 122 are all aspheric
Face.
The third lens 130 have positive refracting power, and are plastic material, are recessed at 131 dipped beam axis 190 of image side surfaces
Face is convex surface at 132 dipped beam axis 190 of image source side surface, and the image side surfaces 131 and image source side surface 132 are all aspheric
Face.
The aspherical fitting equation of above-mentioned each lens is expressed as follows:
Wherein z is along 190 direction of optical axis in the positional value that be highly the position of h make to refer to surface vertices；C is lens measure
Face close to optical axis 190 curvature, and be radius of curvature (R) inverse (c=1/R), R be lens surface close to optical axis 190 song
Rate radius, h are vertical range of the lens surface apart from optical axis 190, and k is circular cone coefficient (conic constant), and A, B, C,
D, E, G ... be order aspherical coefficients.
In the infrared Single wavelength projection lens set of the three-chip type of first embodiment, the infrared Single wavelength projection lens set of three-chip type
Focal length is f, and the f-number (f-number) of the infrared Single wavelength projection lens set of three-chip type is Fno, and the infrared Single wavelength of three-chip type is thrown
Maximum field of view angle (drawing angle) is FOV in shadow lens set, and numerical value is as follows: f=5.97 (millimetre)；Fno=2.6；And FOV=
4.89 (degree).
In the infrared Single wavelength projection lens set of the three-chip type of first embodiment, the infrared Single wavelength of the three-chip type projects lens set
Whole focal length be f, the synthesis focal length of first lens 110 and the second lens 120 is f12, and meets following condition: f/f12
=1.429.
In the infrared Single wavelength projection lens set of the three-chip type of first embodiment, the infrared Single wavelength of the three-chip type projects lens set
Whole focal length be f, the synthesis focal length of second lens 120 and the third lens 130 is f23, and meets following condition: f/f23
=0.512.
In the three-chip type of first embodiment infrared Single wavelength projection lens set, the focal length of first lens 110 is f1, this
The focal length of two lens 120 is f2, and meets following condition: f1/f2=-2.088.
In the three-chip type of first embodiment infrared Single wavelength projection lens set, the focal length of second lens 120 is f2, this
The focal length of three lens 130 is f3, and meets following condition: f2/f3=-0.383.
In the three-chip type of first embodiment infrared Single wavelength projection lens set, the focal length of first lens 110 is f1, this
The focal length of three lens 130 is f3, and meets following condition: f1/f3=0.8.
In the three-chip type of first embodiment infrared Single wavelength projection lens set, the focal length of first lens 110 is f1, this
Two lens 120 and the synthesis focal length of the third lens 130 are f23, and meet following condition: f1/f23=0.175.
In the three-chip type of first embodiment infrared Single wavelength projection lens set, first lens 110 and the second lens 120
Synthesis focal length is f12, and the focal length of the third lens 130 is f3, and meets following condition: f12/f3=1.637.
In the infrared Single wavelength projection lens set of the three-chip type of first embodiment, the image side surfaces 111 of first lens 110
Radius of curvature is R1, and 112 radius of curvature of image source side surface of first lens 110 is R2, and meets following condition: R1/R2=-
3.076。
In the infrared Single wavelength projection lens set of the three-chip type of first embodiment, the image side surfaces 121 of second lens 120
Radius of curvature is R3, and 122 radius of curvature of image source side surface of second lens 120 is R4, and meets following condition: R3/R4=
3.559。
In the infrared Single wavelength projection lens set of the three-chip type of first embodiment, the image side surfaces 131 of the third lens 130
Radius of curvature is R5, and 132 radius of curvature of image source side surface of the third lens 130 is R6, and meets following condition: R5/R6=
0.75。
In the infrared Single wavelength projection lens set of the three-chip type of first embodiment, first lens 110 are in the thickness on optical axis 190
Degree is CT1, and second lens 120 are in, with a thickness of CT2, and meeting following condition: CT1/CT2=1.004 on optical axis 190.
In the infrared Single wavelength projection lens set of the three-chip type of first embodiment, second lens 120 are in the thickness on optical axis 190
Degree is CT2, and the third lens 130 are in, with a thickness of CT3, and meeting following condition: CT2/CT3=1.354 on optical axis 190.
In the infrared Single wavelength projection lens set of the three-chip type of first embodiment, first lens 110 are in the thickness on optical axis 190
Degree is CT1, and the third lens 130 are in, with a thickness of CT3, and meeting following condition: CT1/CT3=1.360 on optical axis 190.
In the infrared Single wavelength projection lens set of the three-chip type of first embodiment, the infrared Single wavelength of the three-chip type projects lens set
Whole focal length be f, the image side surfaces 111 of first lens 110 to image source face 180 are TL in the distance on optical axis 190, and
Meet following condition: f/TL=1.637.
In the infrared Single wavelength projection lens set of the three-chip type of first embodiment, the refractive index of first lens 110 is n1, should
The refractive index of second lens 120 is n2, and the refractive index of the third lens 130 is n3, and meets following condition: n1, n2, n3=
1.65。
Cooperate again referring to following table 1 and table 2.
Table 1 is the detailed structured data of Figure 1A first embodiment, and wherein the unit of radius of curvature, thickness and focal length is mm,
And surface 0-9 is sequentially indicated by the surface at image side to image source side.Table 2 is the aspherical surface data in first embodiment, wherein k
Conical surface coefficient in table aspheric curve equation, A, B, C, D, E, F ... be order aspherical coefficients.In addition, following reality
Apply the schematic diagram and aberration curve figure that a table is corresponding each embodiment, in table the definition of data all with the table of first embodiment
1 and table 2 definition it is identical, be not added repeat herein.
<second embodiment>
A and Fig. 2 B referring to figure 2., wherein Fig. 2A is painted throws according to the infrared Single wavelength of three-chip type of second embodiment of the invention
The schematic diagram of shadow lens set, Fig. 2 B are sequentially the non-of the infrared Single wavelength projection lens set of three-chip type of second embodiment from left to right
Point astigmat distorts astigmat curve graph.By Fig. 2A it is found that the infrared Single wavelength projection eyeglass system of three-chip type includes an aperture 200
With an optics group, the optics group is by sequentially including the first lens 210, the second lens 220, the third lens at image side to image source side
230 and image source face 280, wherein having the lens of refracting power in the infrared Single wavelength projection lens set of the three-chip type is three pieces.The light
Circle 200 is arranged between the image source side surface 212 of first lens 210 and the image side surfaces 221 of second lens 220.
First lens 210 have positive refracting power, and are plastic material, are convex at 211 dipped beam axis 290 of image side surfaces
Face is convex surface at 212 dipped beam axis 290 of image source side surface, and the image side surfaces 211 and image source side surface 212 are all aspheric
Face.
Second lens 220 have negative refracting power, and are plastic material, are convex at 221 dipped beam axis 290 of image side surfaces
Face is concave surface at 222 dipped beam axis 290 of image source side surface, and the image side surfaces 221 and image source side surface 222 are all aspheric
Face.
The third lens 230 have positive refracting power, and are plastic material, are recessed at 231 dipped beam axis 290 of image side surfaces
Face is convex surface at 232 dipped beam axis 290 of image source side surface, and the image side surfaces 231 and image source side surface 232 are all aspheric
Face.
Cooperate again referring to following table 3 and table 4.
In second embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, following table parameter
Definition is all identical with the first embodiment, and not in this to go forth.
Cooperation table 3 and table 4 can extrapolate following data:
<3rd embodiment>
A and Fig. 3 B referring to figure 3., wherein Fig. 3 A is painted throws according to the infrared Single wavelength of three-chip type of third embodiment of the invention
The schematic diagram of shadow lens set, Fig. 3 B are sequentially the non-of the infrared Single wavelength projection lens set of three-chip type of 3rd embodiment from left to right
Point astigmat distorts astigmat curve graph.By Fig. 3 A it is found that the infrared Single wavelength projection eyeglass system of three-chip type includes an aperture 300
With an optics group, the optics group is by sequentially including the first lens 310, the second lens 320, the third lens at image side to image source side
330 and image source face 380, wherein having the lens of refracting power in the infrared Single wavelength projection lens set of the three-chip type is two.The light
Circle 300 is arranged between the image side surfaces 311 of first lens 310 and image source side surface 312.
First lens 310 have positive refracting power, and are plastic material, are convex at 311 dipped beam axis 390 of image side surfaces
Face is convex surface at 312 dipped beam axis 390 of image source side surface, and the image side surfaces 311 and image source side surface 312 are all aspheric
Face.
Second lens 320 have negative refracting power, and are plastic material, are recessed at 321 dipped beam axis 390 of image side surfaces
Face is concave surface at 322 dipped beam axis 390 of image source side surface, and the image side surfaces 321 and image source side surface 322 are all aspheric
Face.
The third lens 330 have positive refracting power, and are plastic material, are recessed at 331 dipped beam axis 390 of image side surfaces
Face is convex surface at 332 dipped beam axis 390 of image source side surface, and the image side surfaces 331 and image source side surface 332 are all aspheric
Face.
Cooperate again referring to following table 5 and table 6.
In 3rd embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, following table parameter
Definition is all identical with the first embodiment, and not in this to go forth.
Cooperation table 5 and table 6 can extrapolate following data:
<fourth embodiment>
A and Fig. 4 B referring to figure 4., wherein Fig. 4 A is painted throws according to the infrared Single wavelength of three-chip type of fourth embodiment of the invention
The schematic diagram of shadow lens set, Fig. 4 B are sequentially the non-of the infrared Single wavelength projection lens set of three-chip type of fourth embodiment from left to right
Point astigmat distorts astigmat curve graph.By Fig. 4 A it is found that the infrared Single wavelength projection eyeglass system of three-chip type includes an aperture 400
With an optics group, the optics group is by sequentially including the first lens 410, the second lens 420, the third lens at image side to image source side
430 and image source face 480, wherein having the lens of refracting power in the infrared Single wavelength projection lens set of the three-chip type is three pieces.The light
Circle 400 is arranged between the image side surfaces 411 of first lens 410 and image source side surface 412.
First lens 410 have positive refracting power, and are plastic material, are convex at 411 dipped beam axis 490 of image side surfaces
Face is concave surface at 412 dipped beam axis 490 of image source side surface, and the image side surfaces 411 and image source side surface 412 are all aspheric
Face.
Second lens 420 have negative refracting power, and are plastic material, are recessed at 421 dipped beam axis 490 of image side surfaces
Face is concave surface at 422 dipped beam axis 490 of image source side surface, and the image side surfaces 421 and image source side surface 422 are all aspheric
Face.
The third lens 430 have positive refracting power, and are plastic material, are recessed at 431 dipped beam axis 490 of image side surfaces
Face is convex surface at 432 dipped beam axis 490 of image source side surface, and the image side surfaces 431 and image source side surface 432 are all aspheric
Face.
Cooperate again referring to following table 7 and table 8.
In fourth embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, following table parameter
Definition is all identical with the first embodiment, and not in this to go forth.
Cooperation table 7 and table 8 can extrapolate following data:
<the 5th embodiment>
A and Fig. 5 B referring to figure 5., wherein Fig. 5 A is painted throws according to the infrared Single wavelength of three-chip type of fifth embodiment of the invention
The schematic diagram of shadow lens set, Fig. 5 B are sequentially the non-of the infrared Single wavelength projection lens set of three-chip type of the 5th embodiment from left to right
Point astigmat distorts astigmat curve graph.By Fig. 5 A it is found that the infrared Single wavelength projection eyeglass system of three-chip type includes an aperture 500
With an optics group, the optics group is by sequentially including the first lens 510, the second lens 520, the third lens at image side to image source side
530 and image source face 580, wherein having the lens of refracting power in the infrared Single wavelength projection lens set of the three-chip type is three pieces.The light
Circle 500 is arranged between the image side surfaces 511 of first lens 510 and image source side surface 512.
First lens 510 have positive refracting power, and are plastic material, are convex at 511 dipped beam axis 590 of image side surfaces
Face is concave surface at 512 dipped beam axis 590 of image source side surface, and the image side surfaces 511 and image source side surface 512 are all aspheric
Face.
Second lens 520 have negative refracting power, and are plastic material, are recessed at 521 dipped beam axis 590 of image side surfaces
Face is concave surface at 522 dipped beam axis 590 of image source side surface, and the image side surfaces 521 and image source side surface 522 are all aspheric
Face.
The third lens 530 have positive refracting power, and are plastic material, are recessed at 531 dipped beam axis 590 of image side surfaces
Face is convex surface at 532 dipped beam axis 590 of image source side surface, and the image side surfaces 531 and image source side surface 532 are all aspheric
Face.
Cooperate again referring to following table 9 and table 10.
In 5th embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, following table parameter
Definition is all identical with the first embodiment, and not in this to go forth.
Cooperation table 9 and table 10 can extrapolate following data:
The infrared Single wavelength of three-chip type provided by the invention projects lens set, and the material of lens can be plastics or glass, when saturating
Mirror material is plastics, and production cost can be effectively reduced, and the another material for working as lens is glass, then can increase the infrared list of three-chip type
Wavelength projects the freedom degree of lens set refracting power configuration.In addition, the infrared Single wavelength of three-chip type projects the imaging of lens in lens set
Side surface and image source side surface can be it is aspherical, it is aspherical to be easy to be fabricated to the shape other than spherical surface, obtain more control
Variable processed to cut down aberration, and then reduces the number that lens use, therefore the infrared list of three-chip type of the present invention can be effectively reduced
The total length of wavelength projection lens set.
In the infrared Single wavelength projection lens set of three-chip type provided by the invention, for the lens with refracting power, if
When lens surface system is convex surface and does not define the convex surface position, then it represents that the lens surface is convex surface at dipped beam axis；If lens
When surface system is concave surface and does not define the concave surface position, then it represents that the lens surface is concave surface at dipped beam axis.
In conclusion the various embodiments described above and attached drawing are only presently preferred embodiments of the present invention, this cannot be limited with this
The range implemented is invented, it is all according to equivalent variations made by scope of the present invention patent and modification, belong to the invention patent institute
The range covered.
Claims (16)
1. a kind of infrared Single wavelength of three-chip type projects lens set, which is characterized in that by sequentially including at image side to image source side:
One first lens have positive refracting power, are convex surface, image side surfaces and image source side table at image side surfaces dipped beam axis
A face at least surface is aspherical；
One second lens have negative refracting power, are concave surface, image side surfaces and image source side table at the dipped beam axis of image source side surface
A face at least surface is aspherical；
One the third lens have positive refracting power, are concave surface at image side surfaces dipped beam axis, are at the dipped beam axis of image source side surface
Convex surface, image side surfaces are aspherical with an image source side surface at least surface；
One aperture, is arranged in front of the image source side surface of first lens or the image side surfaces of first lens and the second lens
Image source side surface between.
2. the infrared Single wavelength of three-chip type as described in claim 1 projects lens set, which is characterized in that the infrared unicast of the three-chip type
Length projects the whole focal length of lens set as f, and the synthesis focal length of first lens and the second lens is f12, and meets following condition:
0.6 < f/f12 < 1.6。
3. the infrared Single wavelength of three-chip type as described in claim 1 projects lens set, which is characterized in that the infrared unicast of the three-chip type
Length projects the whole focal length of lens set as f, and the synthesis focal length of second lens and the third lens is f23, and meets following condition:
0.1 < f/f23 < 1.3。
4. the infrared Single wavelength of three-chip type as described in claim 1 projects lens set, which is characterized in that the focal length of first lens
Focal length for f1, second lens is f2, and meets following condition: -3.0 < f1/f2 < -1.7.
5. the infrared Single wavelength of three-chip type as described in claim 1 projects lens set, wherein the focal length of second lens is f2, should
The focal length of the third lens is f3, and meets following condition: -0.55 < f2/f3 < -0.15.
6. the infrared Single wavelength of three-chip type as described in claim 1 projects lens set, which is characterized in that the focal length of first lens
Focal length for f1, the third lens is f3, and meets following condition: 0.5 < f1/f3 < 1.3.
7. the infrared Single wavelength of three-chip type as described in claim 1 projects lens set, which is characterized in that the focal length of first lens
For f1, the synthesis focal length of second lens and the third lens is f23, and meets following condition: 0.02 < f1/f23 < 0.46.
8. the infrared Single wavelength of three-chip type as described in claim 1 projects lens set, which is characterized in that first lens and second
The synthesis focal length of lens is f12, and the focal length of the third lens is f3, and meets following condition: 1.34 < f12/f3 < 4.05.
9. the infrared Single wavelength of three-chip type as described in claim 1 projects lens set, which is characterized in that the imaging of first lens
Side surface radius of curvature is R1, and the image source side surface radius of curvature of first lens is R2, and meets following condition: -3.38 <
R1/R2 < 0.45。
10. the infrared Single wavelength of three-chip type as described in claim 1 projects lens set, which is characterized in that second lens at
Image side surface curvature radius is R3, and the image source side surface radius of curvature of second lens is R4, and meets following condition: -1.87
< R3/R4 < 6.23。
11. the infrared Single wavelength of three-chip type as described in claim 1 projects lens set, which is characterized in that the third lens at
Image side surface curvature radius is R5, and the image source side surface radius of curvature of the third lens is R6, and meets following condition: 0.5 <
R5/R6 < 3.2。
12. the infrared Single wavelength of three-chip type as described in claim 1 projects lens set, which is characterized in that first lens are in light
On axis with a thickness of CT1, second lens are in, with a thickness of CT2, and meeting following condition on optical axis: 0.8 < CT1/CT2 <
3.5。
13. the infrared Single wavelength of three-chip type as described in claim 1 projects lens set, which is characterized in that second lens are in light
On axis with a thickness of CT2, the third lens are in, with a thickness of CT3, and meeting following condition on optical axis: 0.1 < CT2/CT3 <
1.6。
14. the infrared Single wavelength of three-chip type as described in claim 1 projects lens set, which is characterized in that first lens are in light
On axis with a thickness of CT1, the third lens are in, with a thickness of CT3, and meeting following condition on optical axis: 0.1 < CT1/CT3 <
1.1。
15. the infrared Single wavelength of three-chip type as described in claim 1 projects lens set, which is characterized in that the infrared list of the three-chip type
The whole focal length that wavelength projects lens set is f, and the image side surfaces of first lens to image source face are TL in the distance on optical axis,
And meet following condition: 1.0 < f/TL < 2.0.
16. the infrared Single wavelength of three-chip type as described in claim 1 projects lens set, which is characterized in that the folding of first lens
Penetrating rate is n1, and the refractive index of second lens is n2, and the refractive index of the third lens is n3, and meets following condition: n1, n2,
N3 > 1.6.
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| CN201711119742.6A CN109782421B (en) | 2017-11-14 | 2017-11-14 | Three-piece infrared single-wavelength projection lens set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711119742.6A CN109782421B (en) | 2017-11-14 | 2017-11-14 | Three-piece infrared single-wavelength projection lens set |
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| CN109782421A true CN109782421A (en) | 2019-05-21 |
| CN109782421B CN109782421B (en) | 2021-01-08 |
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| CN201711119742.6A Active CN109782421B (en) | 2017-11-14 | 2017-11-14 | Three-piece infrared single-wavelength projection lens set |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111221101A (en) * | 2018-11-27 | 2020-06-02 | 大立光电股份有限公司 | Lens system, projection device, sensing module and electronic device |
| CN111273431A (en) * | 2018-12-04 | 2020-06-12 | 新巨科技股份有限公司 | Three-piece infrared single-wavelength projection lens set |
| CN112230381A (en) * | 2020-10-31 | 2021-01-15 | 诚瑞光学(苏州)有限公司 | Image pickup optical lens |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001033689A (en) * | 1999-07-26 | 2001-02-09 | Fuji Photo Optical Co Ltd | Bright wide-angled infrared lens |
| CN101963694A (en) * | 2010-10-15 | 2011-02-02 | 北京波谱华光科技有限公司 | Long-wave heat difference eliminating infrared optical lens |
| CN201765372U (en) * | 2010-07-14 | 2011-03-16 | 昆明物理研究所 | Infrared lens with ultra-strong light, large viewing field and temperature self-adaptation |
| TW201300826A (en) * | 2012-09-10 | 2013-01-01 | Largan Precision Co Ltd | Imaging lens system |
| JP2013080130A (en) * | 2011-10-04 | 2013-05-02 | Sony Corp | Infrared optical system and infrared imaging device |
| CN104297900A (en) * | 2014-10-28 | 2015-01-21 | 福建福光数码科技有限公司 | Non-refrigeration long-wave infrared camera lens resisting high-intense impact |
| CN105807402A (en) * | 2016-06-02 | 2016-07-27 | 厦门颉轩光电有限公司 | Near-infrared optical lens system |
| CN106154511A (en) * | 2015-04-08 | 2016-11-23 | 亚太精密工业(深圳)有限公司 | Infrared ray follows the trail of camera lens |
| EP3104207A1 (en) * | 2015-04-08 | 2016-12-14 | Zhejiang Sunny Optics Co., Ltd. | Interactive lens |
| CN106842524A (en) * | 2017-03-30 | 2017-06-13 | 中山联合光电科技股份有限公司 | A kind of optics athermal, pixel high, high illumination, inexpensive thermal imaging system |
-
2017
- 2017-11-14 CN CN201711119742.6A patent/CN109782421B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001033689A (en) * | 1999-07-26 | 2001-02-09 | Fuji Photo Optical Co Ltd | Bright wide-angled infrared lens |
| CN201765372U (en) * | 2010-07-14 | 2011-03-16 | 昆明物理研究所 | Infrared lens with ultra-strong light, large viewing field and temperature self-adaptation |
| CN101963694A (en) * | 2010-10-15 | 2011-02-02 | 北京波谱华光科技有限公司 | Long-wave heat difference eliminating infrared optical lens |
| JP2013080130A (en) * | 2011-10-04 | 2013-05-02 | Sony Corp | Infrared optical system and infrared imaging device |
| TW201300826A (en) * | 2012-09-10 | 2013-01-01 | Largan Precision Co Ltd | Imaging lens system |
| CN104297900A (en) * | 2014-10-28 | 2015-01-21 | 福建福光数码科技有限公司 | Non-refrigeration long-wave infrared camera lens resisting high-intense impact |
| CN106154511A (en) * | 2015-04-08 | 2016-11-23 | 亚太精密工业(深圳)有限公司 | Infrared ray follows the trail of camera lens |
| EP3104207A1 (en) * | 2015-04-08 | 2016-12-14 | Zhejiang Sunny Optics Co., Ltd. | Interactive lens |
| CN105807402A (en) * | 2016-06-02 | 2016-07-27 | 厦门颉轩光电有限公司 | Near-infrared optical lens system |
| CN106842524A (en) * | 2017-03-30 | 2017-06-13 | 中山联合光电科技股份有限公司 | A kind of optics athermal, pixel high, high illumination, inexpensive thermal imaging system |
Non-Patent Citations (2)
| Title |
|---|
| AQI YAN: "Design of Compact Infrared Zoom Lens System", 《ADVANCED MATERIALS RESEARCH》 * |
| 王静: "硫系玻璃在无热化长波红外广角镜头中的应用", 《光子学报》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111221101A (en) * | 2018-11-27 | 2020-06-02 | 大立光电股份有限公司 | Lens system, projection device, sensing module and electronic device |
| CN111221101B (en) * | 2018-11-27 | 2021-11-26 | 大立光电股份有限公司 | Lens system, projection device, sensing module and electronic device |
| US11360290B2 (en) | 2018-11-27 | 2022-06-14 | Largan Precision Co., Ltd. | Lens system, projection apparatus, detecting module and electronic device |
| CN111273431A (en) * | 2018-12-04 | 2020-06-12 | 新巨科技股份有限公司 | Three-piece infrared single-wavelength projection lens set |
| CN111273431B (en) * | 2018-12-04 | 2021-11-16 | 新巨科技股份有限公司 | Three-piece infrared wavelength projection lens set |
| CN112230381A (en) * | 2020-10-31 | 2021-01-15 | 诚瑞光学(苏州)有限公司 | Image pickup optical lens |
| CN112230381B (en) * | 2020-10-31 | 2022-01-07 | 诚瑞光学(苏州)有限公司 | Image pickup optical lens |
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