CN106970459A - The infrared Single wavelength lens set of three-chip type - Google Patents
The infrared Single wavelength lens set of three-chip type Download PDFInfo
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- CN106970459A CN106970459A CN201610023493.XA CN201610023493A CN106970459A CN 106970459 A CN106970459 A CN 106970459A CN 201610023493 A CN201610023493 A CN 201610023493A CN 106970459 A CN106970459 A CN 106970459A
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- single wavelength
- infrared single
- lens set
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0035—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having three lenses
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Abstract
The present invention discloses a kind of infrared Single wavelength lens set of three-chip type, is sequentially included by thing side to image side：Aperture；First lens, with positive refracting power；Second lens, with positive refracting power；3rd lens, with positive refracting power；Wherein the focal length of the first lens is f1, and the synthesis focal length of the second lens and the 3rd lens is f23, and meets following condition：0.5<f1/f23<1.0.Thus, then it can make the infrared Single wavelength lens set of the three-chip type while extensive picture angle (angle of visual field) is obtained, its resolving power is obviously improved.
Description
Technical field
The present invention relates to lens set, more particularly to a kind of infrared unicast of miniaturization three-chip type applied on electronic product
Long lens set.
Background technology
Digital audio-effect processing is constantly brought forth new ideas, changed now, particularly the digital carrier in digital camera and mobile phone etc.
All towards miniaturization, and photosensory assembly such as CCD or CMOS is set also to be required smallerization, in infrared ray focusing lens application,
Except applying in photography, infrared receiver and the sensing field of game machine are also largely diverted in recent years, and to make it
The scope of game machine sensing user is broader, the lens set of current receiving infrared-ray wavelength, mostly to draw the wide-angle that angle is larger
Lens set is main flow.
Wherein, applicant is previously it is also proposed that the lens set that the relevant IR wavelength of more than one piece is received, but at present game machine with more
Have based on three-dimensional, true and telepresenc 3D game, therefore the just current or previous lens set of applicant, all played with 2D plane
Detect to require, so that it cannot meet the depth feelings that stress of 3D game answers effect.
Furthermore, about the special infrared receiver of game machine, sensing lens set, glass lens are used for pursuit is cheap,
One to carry out material translucency poor be influence one of game machine depth insufficient detection precision key element, two come glass lens easily in
Environment temperature overheat or be subcooled 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 can not meet the two big technical tasks that 3D game depth distances accurately sense.
In view of this, how a kind of accurate depth distance detecting is provided, is received, and prevents lens set focal length from changing influence
Depth detects effect, the lens set technical bottleneck suddenly to be overcome at present received then for IR wavelength.
The content of the invention
It is espespecially a kind of that there is preferable image sense it is an object of the invention to provide a kind of infrared Single wavelength lens set of three-chip type
The infrared Single wavelength lens set of three-chip type of brake.
In order to reach object defined above, the present invention provides a kind of infrared Single wavelength lens set of three-chip type, by thing side to image side according to
Sequence is included：Aperture；First lens, are at convex surface, its image side surface dipped beam axle at its thing side surface dipped beam axle with positive refracting power
For convex surface, its thing side surface is aspherical with an image side surface at least surface；Second lens, with positive refracting power, its thing side table
It is convex surface at concave surface, its image side surface dipped beam axle to be at the dipped beam axle of face, and its thing side surface is non-with an image side surface at least surface
Sphere；3rd lens, with positive refracting power, it is concave surface at convex surface, its image side surface dipped beam axle to be at its thing side surface dipped beam axle,
Its thing side surface is aspherical with an image side surface at least surface；
Wherein the focal length of the first lens is f1, and the synthesis focal length of the second lens and the 3rd lens is f23, and meets following bar
Part：0.5<f1/f23<1.0.Thus, then the infrared Single wavelength lens set of the three-chip type can be made to obtain extensive picture angle (angle of visual field)
While, its resolving power is obviously improved.
It is preferred that the focal length of the first lens is f1, the focal length of the second lens is f2, and meets following condition：0.05<f1/
f2<0.45.Thus, make the refracting power configuration of the first lens and the second lens more suitable, can be conducive to obtaining extensive picture angle
(angle of visual field) and the excessive increase for reducing system aberration.
It is preferred that the focal length of the second lens is f2, the focal length of the 3rd lens is f3, and meets following condition：0.5<f2/f3
<2.6.Thus, the refracting power configuration of the second lens and the 3rd lens is more balanced, contribute to amendment and the susceptibility of aberration
Reduction.
It is preferred that the focal length of the first lens is f1, the focal length of the 3rd lens is f3, and meets following condition：0.05<f1/
f3<0.7.Thus, the positive refracting power of the first lens is effectively distributed, the susceptibility of the infrared Single wavelength lens set of three-chip type is reduced.
It is preferred that the synthesis focal length of the first lens and the second lens is f12, the focal lengths of the 3rd lens is f3, and under meeting
Row condition：0.1<f12/f3<0.65.Thus, the infrared Single wavelength lens set of three-chip type can be made to obtain extensive picture angle (visual field
Angle) while, its resolving power is obviously improved.
It is preferred that the image side surface curvature radius of the first lens is R2, the thing side surface radius of curvature of the second lens is R3,
And meet following condition：25<R2/R3<270.Thus, the spherical aberration and astigmatism of the infrared Single wavelength lens set of three-chip type are effectively reduced.
It is preferred that the maximum field of view angle of the infrared Single wavelength lens set of three-chip type is FOV, and meet following condition：45<FOV<
75.Thus, the infrared Single wavelength lens set of three-chip type is made to have appropriate larger field angle.
It is preferred that the first lens are CT1 in the thickness on optical axis, the first lens and the second lens are in the spacer on optical axis
From for T12, and meet following condition：1.4<CT1/T12<2.4.Thus, contribute to the assembling of lens set, make good to improve
Rate.
It is preferred that the first lens and the second lens are T12 in the spacing distance on optical axis, the second lens are in the thickness on optical axis
Spend for CT2, and meet following condition：0.5<T12/CT2<1.4.Thus, contribute to the mouldability and homogenieity of eyeglass, and make group
Fill yield increase.
It is preferred that the first lens and the second lens are T12 in the spacing distance on optical axis, the second lens and the 3rd lens in
Spacing distance on optical axis is T23, and meets following condition：5.4<T12/T23<9.0.Thus, the spacing distance of lens is more
Properly, lens set is contributed to be filled with increase finished product yield.
It is preferred that the abbe number of the first lens is V1, the abbe number of the second lens is V2, and meets following condition：
30<V1-V2<42.Thus, the aberration of the infrared Single wavelength lens set of three-chip type is effectively reduced.
It is preferred that the abbe number of the first lens is V1, the abbe number of the 3rd lens is V3, and meets following condition：
30<V1-V3<42.Thus, the aberration of the infrared Single wavelength lens set of three-chip type can be effectively corrected, image quality is lifted.
It is preferred that the f-number of the infrared Single wavelength lens set of three-chip type is Fno, and meet following condition：1.2<Fno<
1.8.Thus, the aperture size of the infrared Single wavelength lens set of three-chip type can be suitably adjusted, makes the infrared Single wavelength lens set of three-chip type
Characteristic with large aperture.
The relevant present invention is reaches above-mentioned purpose, and technology, means and the other effects used hereby lifts four preferably feasible
Embodiment simultaneously coordinates schema to describe in detail as after.
Brief description of the drawings
Figure 1A is the schematic diagram of the infrared Single wavelength lens set of three-chip type of embodiments of the invention one.
Figure 1B is sequentially that spherical aberration, astigmatism and the distortion of the infrared Single wavelength lens set of three-chip type of embodiment one are bent from left to right
Line chart.
Fig. 2A is the schematic diagram of the infrared Single wavelength lens set of three-chip type of embodiments of the invention two.
Fig. 2 B are sequentially that spherical aberration, astigmatism and the distortion of the infrared Single wavelength lens set of three-chip type of embodiment two are bent from left to right
Line chart.
Fig. 3 A are the schematic diagram of the infrared Single wavelength lens set of three-chip type of embodiments of the invention three.
Fig. 3 B are sequentially that spherical aberration, astigmatism and the distortion of the infrared Single wavelength lens set of three-chip type of embodiment three are bent from left to right
Line chart.
Fig. 4 A are the schematic diagram of the infrared Single wavelength lens set of three-chip type of embodiments of the invention four.
Fig. 4 B are sequentially that spherical aberration, astigmatism and the distortion of the infrared Single wavelength lens set of three-chip type of example IV are bent from left to right
Line chart.
Sign flag explanation in accompanying drawing：
100、200、300、400：Aperture；
110、210、310、410：First lens；
111、211、311、411：Thing side surface；
112、212、312、412：Image side surface；
120、220、320、420：Second lens；
121、221、321、421：Thing side surface；
122、222、322、422：Image side surface；
130、230、330、430：3rd lens；
131、231、331、431：Thing side surface；
132、232、332、432：Image side surface；
170、270、370、470：Infrared ray filters out filtering assembly；
180、280、380、480：Imaging surface；
190、290、390、490：Optical axis；
f：The focal length of the infrared Single wavelength lens set of three-chip type；
Fno：The f-number of the infrared Single wavelength lens set of three-chip type；
FOV：Maximum field of view angle in the infrared Single wavelength lens set of three-chip type；
f1：The focal length of first lens；
f2：The focal length of second lens；
f3：The focal length of 3rd lens；
f12：The synthesis focal length of first lens and the second lens；
f23：The synthesis focal length of second lens and the 3rd lens；
R2：The image side surface curvature radius of first lens；
R3：The thing side surface radius of curvature of second lens；
V1：The abbe number of first lens；
V2：The abbe number of second lens；
V3：The abbe number of 3rd lens；
CT1：First lens are in the thickness on optical axis；
CT2：Second lens are in the thickness on optical axis；
T12：First lens and the second lens are in the spacing distance on optical axis；
T23：Second lens and the 3rd lens are in the spacing distance on optical axis.
Embodiment
Clear, complete description is carried out to technical scheme below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained on the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
Embodiment one
Figure 1A and Figure 1B is refer to, wherein Figure 1A is illustrated according to the infrared Single wavelength eyeglass of the three-chip type of the embodiment of the present invention one
The schematic diagram of group, Figure 1B is sequentially the spherical aberration of the infrared Single wavelength lens set of three-chip type of embodiment one, astigmatism and askew from left to right
Bent curve map.From Figure 1A, the infrared Single wavelength lens set of three-chip type includes aperture 100 and optics group, and optics group is by thing side
To image side sequentially comprising the first lens 110, the second lens 120, the 3rd lens 130, infrared ray filter out filtering assembly 170 and
The lens for having refracting power in the infrared Single wavelength lens set of imaging surface 180, wherein three-chip type are three.Aperture 100 is arranged on first
Between the image side surface 112 of lens 110 and object.
First lens 110 have positive refracting power, and it is convex surface at plastic material, its dipped beam axle 190 of thing side surface 111 to be,
It is convex surface at its dipped beam axle 190 of image side surface 112, and thing side surface 111 and image side surface 112 are all aspherical.
Second lens 120 have positive refracting power, and it is concave surface at plastic material, its dipped beam axle 190 of thing side surface 121 to be,
It is convex surface at its dipped beam axle 190 of image side surface 122, and thing side surface 121 and image side surface 122 are all aspherical.
3rd lens 130 have positive refracting power, and it is convex surface at plastic material, its dipped beam axle 190 of thing side surface 131 to be,
It is concave surface at its dipped beam axle 190 of image side surface 132, and thing side surface 131 and image side surface 132 are all aspherical.
Infrared ray filters out filtering assembly 170 for glass material, and it is arranged between the 3rd lens 130 and imaging surface 180 and not
Influence the focal length of the infrared Single wavelength lens set of three-chip type.
The aspherical fitting equation of above-mentioned each lens is expressed as follows：
Wherein z is the positional value for making to refer to surface vertices in the position that height is h along the direction of optical axis 190；C is lens measure
Face close to optical axis 190 curvature, and for radius of curvature (R) inverse (c=1/R), R be lens surface close to optical axis 190 song
Rate radius, h is 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 lens set of three-chip type of embodiment one, the focal length of the infrared Single wavelength lens set of three-chip type is f, three
The f-number (f-number) of the infrared Single wavelength lens set of chip is maximum field of view in Fno, the infrared Single wavelength lens set of three-chip type
Angle (picture angle) is FOV, and its numerical value is as follows：F=1.192 (millimetre)；Fno=1.4；And FOV=60 (degree).
In the infrared Single wavelength lens set of three-chip type of embodiment one, the focal length of the first lens 110 is f1, the second lens 120
Synthesis focal length with the 3rd lens 130 is f23, and meets following condition：F1/f23=0.64636.
In the infrared Single wavelength lens set of three-chip type of embodiment one, the focal length of the first lens 110 is f1, the second lens 120
Focal length be f2, and meet following condition：F1/f2=0.22985.
In the infrared Single wavelength lens set of three-chip type of embodiment one, the focal length of the second lens 120 is f2, the 3rd lens 130
Focal length be f3, and meet following condition：F2/f3=1.39174.
In the infrared Single wavelength lens set of three-chip type of embodiment one, the focal length of the first lens 110 is f1, the 3rd lens 130
Focal length be f3, and meet following condition：F1/f3=0.31990.
In the infrared Single wavelength lens set of three-chip type of embodiment one, the synthesis focal length of the first lens 110 and the second lens 120
For f12, the focal length of the 3rd lens 130 is f3, and meets following condition：F12/f3=0.32798.
In the infrared Single wavelength lens set of three-chip type of embodiment one, the radius of curvature of image side surface 112 of the first lens 110 is
R2, the radius of curvature of thing side surface 121 of the second lens 120 is R3, and meets following condition：R2/R3=261.90368.
In the infrared Single wavelength lens set of three-chip type of embodiment one, the first lens 110 are CT1 in the thickness on optical axis 190,
First lens 110 and the second lens 120 are T12 in the spacing distance on optical axis 190, and meet following condition：CT1/T12=
1.85473。
In the infrared Single wavelength lens set of three-chip type of embodiment one, the first lens 110 and the second lens 120 are in optical axis 190
On spacing distance be T12, the second lens 120 are CT2 in the thickness on optical axis 190, and meet following condition：T12/CT2=
0.97384。
In the infrared Single wavelength lens set of three-chip type of embodiment one, the first lens 110 and the second lens 120 are in optical axis 190
On spacing distance be T12, the second lens 120 and the 3rd lens 130 are under the spacing distance on optical axis 190 is T23, and satisfaction
Row condition：T12/T23=7.159.
In the infrared Single wavelength lens set of three-chip type of embodiment one, the abbe number of the first lens 110 is V1, the second lens
120 abbe number is V2, and meets following condition：V1-V2=34.5.
In the infrared Single wavelength lens set of three-chip type of embodiment one, the abbe number of the first lens 110 is V1, the 3rd lens
130 abbe number is V3, and meets following condition：V1-V3=34.5.
Coordinate again with reference to following table 1 and table 2.
Table 1 is the detailed structured data of Figure 1A embodiments one, and the wherein unit of radius of curvature, thickness and focal length is mm, and
Surface 0-11 is sequentially represented by the surface of thing side to image side.Table 2 is the aspherical surface data in embodiment one, wherein, k tables are aspherical
Conical surface coefficient in fitting equation, A, B, C, D, E, F, G, H ... are order aspherical coefficients.In addition, following embodiment
Form is table 1 and table of the definition of data in the schematic diagram and aberration curve figure of each embodiment of correspondence, form all with embodiment one
2 definition is identical, is not added with repeating herein.
Embodiment two
Fig. 2A and Fig. 2 B are refer to, wherein Fig. 2A is illustrated according to the infrared Single wavelength eyeglass of the three-chip type of the embodiment of the present invention two
The schematic diagram of group, Fig. 2 B are sequentially the spherical aberration of the infrared Single wavelength lens set of three-chip type of embodiment two, astigmatism and askew from left to right
Bent curve map.From Fig. 2A, the infrared Single wavelength lens set of three-chip type includes aperture 200 and optics group, and optics group is by thing side
To image side sequentially comprising the first lens 210, the second lens 220, the 3rd lens 230, infrared ray filter out filtering assembly 270 and
The lens for having refracting power in the infrared Single wavelength lens set of imaging surface 280, wherein three-chip type are three.Aperture 200 set this first
Between the image side surface 212 of lens 210 and object.
First lens 210 have positive refracting power, and it is convex surface at plastic material, its dipped beam axle 290 of thing side surface 211 to be,
It is convex surface at its dipped beam axle 290 of image side surface 212, and thing side surface 211 and image side surface 212 are all aspherical.
Second lens 220 have positive refracting power, and it is concave surface at plastic material, its dipped beam axle 290 of thing side surface 221 to be,
It is convex surface at its dipped beam axle 290 of image side surface 222, and thing side surface 221 and image side surface 222 are all aspherical.
3rd lens 230 have positive refracting power, and it is convex surface at plastic material, its dipped beam axle 290 of thing side surface 231 to be,
It is concave surface at its dipped beam axle 290 of image side surface 232, and thing side surface 231 and image side surface 232 are all aspherical.
Infrared ray filters out filtering assembly 270 for glass material, and it is arranged between the 3rd lens 230 and imaging surface 280 and not
Influence the focal length of the infrared Single wavelength lens set of three-chip type.
Coordinate again with reference to following table 3 and table 4.
In embodiment two, aspherical fitting equation is represented such as the form of embodiment one.In addition, the definition of following table parameter
All identical with embodiment one, not in this to go forth.
Cooperation table 3 and table 4 can extrapolate following data：
Embodiment three
Fig. 3 A and Fig. 3 B are refer to, wherein Fig. 3 A are illustrated according to the infrared Single wavelength eyeglass of the three-chip type of the embodiment of the present invention three
The schematic diagram of group, Fig. 3 B are sequentially the spherical aberration of the infrared Single wavelength lens set of three-chip type of embodiment three, astigmatism and askew from left to right
Bent curve map.From Fig. 3 A, the infrared Single wavelength lens set of three-chip type includes aperture 300 and optics group, and optics group is by thing side
To image side sequentially comprising the first lens 310, the second lens 320, the 3rd lens 330, infrared ray filter out filtering assembly 370 and
The lens for having refracting power in the infrared Single wavelength lens set of imaging surface 380, wherein three-chip type are three.Aperture 300 is arranged on first
Between the image side surface 312 of lens 310 and object.
First lens 310 have positive refracting power, and it is convex surface at plastic material, its dipped beam axle 390 of thing side surface 311 to be,
It is convex surface at its dipped beam axle 390 of image side surface 312, and thing side surface 311 and image side surface 312 are all aspherical.
Second lens 320 have positive refracting power, and it is concave surface at plastic material, its dipped beam axle 390 of thing side surface 321 to be,
It is convex surface at its dipped beam axle 390 of image side surface 322, and thing side surface 321 and image side surface 322 are all aspherical.
3rd lens 330 have positive refracting power, and it is convex surface at plastic material, its dipped beam axle 390 of thing side surface 331 to be,
It is concave surface at its dipped beam axle 390 of image side surface 332, and thing side surface 331 and image side surface 332 are all aspherical.
Infrared ray filters out filtering assembly 370 for glass material, and it is arranged between the 3rd lens 330 and imaging surface 380 and not
Influence the focal length of the infrared Single wavelength lens set of three-chip type.
Coordinate again with reference to following table 5 and table 6.
In embodiment three, aspherical fitting equation is represented such as the form of embodiment one.In addition, the definition of following table parameter
All identical with embodiment one, not in this to go forth.
Cooperation table 5 and table 6 can extrapolate following data：
Example IV
Fig. 4 A and Fig. 4 B are refer to, wherein Fig. 4 A are illustrated according to the infrared Single wavelength eyeglass of the three-chip type of the embodiment of the present invention four
The schematic diagram of group, Fig. 4 B are sequentially the spherical aberration of the infrared Single wavelength lens set of three-chip type of example IV, astigmatism and askew from left to right
Bent curve map.From Fig. 4 A, the infrared Single wavelength lens set of three-chip type includes aperture 400 and optics group, and optics group is by thing side
To image side sequentially comprising the first lens 410, the second lens 420, the 3rd lens 430, infrared ray filter out filtering assembly 470 and
The lens for having refracting power in the infrared Single wavelength lens set of imaging surface 480, wherein three-chip type are three.Aperture 400 is arranged on first
Between the image side surface 412 of lens 410 and object.
First lens 410 have positive refracting power, and it is convex surface at plastic material, its dipped beam axle 490 of thing side surface 411 to be,
It is convex surface at its dipped beam axle 490 of image side surface 412, and thing side surface 411 and image side surface 412 are all aspherical.
Second lens 420 have positive refracting power, and it is concave surface at plastic material, its dipped beam axle 490 of thing side surface 421 to be,
It is convex surface at its dipped beam axle 490 of image side surface 422, and thing side surface 421 and image side surface 422 are all aspherical.
3rd lens 430 have positive refracting power, and it is convex surface at plastic material, its dipped beam axle 490 of thing side surface 431 to be,
It is concave surface at its dipped beam axle 490 of image side surface 432, and thing side surface 431 and image side surface 432 are all aspherical.
Infrared ray filters out filtering assembly 470 for glass material, and it is arranged between the 3rd lens 430 and imaging surface 480 and not
Influence the focal length of the infrared Single wavelength lens set of three-chip type.
Coordinate again with reference to following table 7 and table 8.
In example IV, aspherical fitting equation is represented such as the form of embodiment one.In addition, the definition of following table parameter
All identical with embodiment one, not in this to go forth.
Cooperation table 7 and table 8 can extrapolate following data：
The infrared Single wavelength lens set of three-chip type that the present invention is provided, the material of lens can be plastics or glass, when lens material
Matter is plastics, can effectively reduce production cost, another when the material of lens is glass, then can increase the infrared Single wavelength of three-chip type
The free degree of lens set refracting power configuration.In addition, the thing side surface of lens and image side table in the infrared Single wavelength lens set of three-chip type
Face can be aspherical, the aspherical shape that can be easily fabricated to beyond sphere, more control variable be obtained, to cut down picture
Difference, and then reduce the number that lens are used, therefore can effectively reduce the overall length of the infrared Single wavelength lens set of three-chip type of the present invention
Degree.
In the infrared Single wavelength lens set of three-chip type that the present invention is provided, for the lens with refracting power, if lens
Surface is convex surface and when not defining convex surface position, then it represents that lens surface is convex surface at dipped beam axle；If lens surface is concave surface
And when not defining concave surface position, then it represents that lens surface is concave surface at dipped beam axle.
The infrared more visual demand of Single wavelength lens set of three-chip type that the present invention is provided is applied to the optical system of mobile focusing
In, and have the characteristic of excellent lens error correction and good image quality concurrently, many-sided it can be applied to 3D (three-dimensional) image capture, numeral
In the electronic image systems such as camera, running gear, Digital Drawing plate or automobile-used photography.
In summary, the various embodiments described above and accompanying drawing are only presently preferred embodiments of the present invention, not to limit this
The protection domain of invention, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. all should
Comprising within the scope of the present invention.
Claims (13)
1. a kind of infrared Single wavelength lens set of three-chip type, it is characterised in that the infrared Single wavelength lens set of three-chip type is by thing side
Sequentially included to image side：
Aperture；
First lens, are convex surface at the thing side surface dipped beam axle of first lens with positive refracting power, first lens
It is convex surface at the dipped beam axle of image side surface, the thing side surface is aspherical with an image side surface at least surface；
Second lens, are concave surface at the thing side surface dipped beam axle of second lens with positive refracting power, second lens
It is convex surface at the dipped beam axle of image side surface, the thing side surface is aspherical with an image side surface at least surface；
3rd lens, are convex surface at the thing side surface dipped beam axle of the 3rd lens with positive refracting power, the 3rd lens
It is concave surface at the dipped beam axle of image side surface, the thing side surface is aspherical with an image side surface at least surface；
The focal length of wherein described first lens is f1, and the synthesis focal lengths of second lens and the 3rd lens is f23, and full
Foot row condition：0.5<f1/f23<1.0.
2. the infrared Single wavelength lens set of three-chip type according to claim 1, it is characterised in that the focal length of first lens
For f1, the focal length of second lens is f2, and meets following condition：0.05<f1/f2<0.45.
3. the infrared Single wavelength lens set of three-chip type according to claim 1, it is characterised in that the focal length of second lens
For f2, the focal length of the 3rd lens is f3, and meets following condition：0.5<f2/f3<2.6.
4. the infrared Single wavelength lens set of three-chip type according to claim 1, it is characterised in that the focal length of first lens
For f1, the focal length of the 3rd lens is f3, and meets following condition：0.05<f1/f3<0.7.
5. the infrared Single wavelength lens set of three-chip type according to claim 1, it is characterised in that first lens and second
The synthesis focal length of lens is f12, and the focal length of the 3rd lens is f3, and meets following condition：0.1<f12/f3<0.65.
6. the infrared Single wavelength lens set of three-chip type according to claim 1, it is characterised in that the image side of first lens
Surface curvature radius is R2, and the thing side surface radius of curvature of second lens is R3, and meets following condition：25<R2/R3<
270。
7. the infrared Single wavelength lens set of three-chip type according to claim 1, it is characterised in that the infrared unicast of three-chip type
The maximum field of view angle of long lens set is FOV, and meets following condition：45<FOV<75.
8. the infrared Single wavelength lens set of three-chip type according to claim 1, it is characterised in that first lens are in optical axis
On thickness be CT1, first lens and the second lens are T12 in the spacing distance on optical axis, and meet following condition：
1.4<CT1/T12<2.4。
9. the infrared Single wavelength lens set of three-chip type according to claim 1, it is characterised in that first lens and second
Lens are T12 in the spacing distance on optical axis, and second lens are CT2 in the thickness on optical axis, and meet following condition：
0.5<T12/CT2<1.4。
10. the infrared Single wavelength lens set of three-chip type according to claim 1, it is characterised in that first lens and
Two lens are T12 in the spacing distance on optical axis, and second lens and the 3rd lens are T23 in the spacing distance on optical axis,
And meet following condition：5.4<T12/T23<9.0.
11. the infrared Single wavelength lens set of three-chip type according to claim 1, it is characterised in that the color of first lens
It is V1 to dissipate coefficient, and the abbe number of second lens is V2, and meets following condition：30<V1-V2<42.
12. the infrared Single wavelength lens set of three-chip type according to claim 1, it is characterised in that the color of first lens
It is V1 to dissipate coefficient, and the abbe number of the 3rd lens is V3, and meets following condition：30<V1-V3<42.
13. the infrared Single wavelength lens set of three-chip type according to claim 1, it is characterised in that the infrared list of three-chip type
The f-number of wavelength lens set is Fno, and meets following condition：1.2<Fno<1.8.
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| CN201610023493.XA CN106970459B (en) | 2016-01-14 | 2016-01-14 | The infrared Single wavelength lens set of three-chip type |
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| CN201610023493.XA CN106970459B (en) | 2016-01-14 | 2016-01-14 | The infrared Single wavelength lens set of three-chip type |
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| CN106970459B CN106970459B (en) | 2019-05-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113296236A (en) * | 2021-05-12 | 2021-08-24 | 江西晶超光学有限公司 | Infrared optical system, infrared receiving module and electronic equipment |
| WO2022183473A1 (en) * | 2021-03-05 | 2022-09-09 | 欧菲光集团股份有限公司 | Optical system, infrared receiving module, and electronic device |
| CN115166936A (en) * | 2022-06-28 | 2022-10-11 | 江西晶超光学有限公司 | Optical system, lens module and electronic equipment |
| WO2022236732A1 (en) * | 2021-05-12 | 2022-11-17 | 欧菲光集团股份有限公司 | Infrared optical system, infrared receiving module, and electronic device |
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| WO2022183473A1 (en) * | 2021-03-05 | 2022-09-09 | 欧菲光集团股份有限公司 | Optical system, infrared receiving module, and electronic device |
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| WO2022236732A1 (en) * | 2021-05-12 | 2022-11-17 | 欧菲光集团股份有限公司 | Infrared optical system, infrared receiving module, and electronic device |
| CN115166936A (en) * | 2022-06-28 | 2022-10-11 | 江西晶超光学有限公司 | Optical system, lens module and electronic equipment |
| CN115166936B (en) * | 2022-06-28 | 2023-11-07 | 江西晶超光学有限公司 | Optical system, lens module and electronic equipment |
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| CN106970459B (en) | 2019-05-21 |
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