CN204009210U - Near infrared interactive projection camera lens - Google Patents

Near infrared interactive projection camera lens Download PDF

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Publication number
CN204009210U
CN204009210U CN201420406113.7U CN201420406113U CN204009210U CN 204009210 U CN204009210 U CN 204009210U CN 201420406113 U CN201420406113 U CN 201420406113U CN 204009210 U CN204009210 U CN 204009210U
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China
Prior art keywords
lens
image source
camera lens
near infrared
interactive projection
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Withdrawn - After Issue
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CN201420406113.7U
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Chinese (zh)
Inventor
黄林
戴付建
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Zhejiang Sunny Optics Co Ltd
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Zhejiang Sunny Optics Co Ltd
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Priority to CN201420406113.7U priority Critical patent/CN204009210U/en
Application granted granted Critical
Publication of CN204009210U publication Critical patent/CN204009210U/en
Priority to US14/779,756 priority patent/US9568714B2/en
Priority to PCT/CN2015/072054 priority patent/WO2016011802A1/en
Priority to EP15763813.1A priority patent/EP3001235B1/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/12—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only
    • 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
    • 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
    • G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
    • G02B13/0065—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element having a beam-folding prism or mirror
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/0304—Detection arrangements using opto-electronic means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means

Abstract

The utility model provides a kind of near infrared interactive projection camera lens, from imaging side to image source side, sequentially comprises: the first lens of tool negative power, and its imaging side is concave surface; Make the catoptrics face of light path bending; The second lens of tool positive light coke, its image source side is convex surface; The 3rd lens with positive light coke, its image source side is convex surface; Described camera lens meets following relationship: 0.4<ImgH/D<0.7, and wherein, ImgH is half of image source diameter diagonal line length; D is that first lens imaging side is to the vertical height of the central optical axis perpendicular to image source.The utility model has adopted three lens, there is the characteristics such as larger field angle, large aperture, miniaturization, simultaneously, by the mixing mutually of glass and plastics, different focal powers and the reasonable distribution of radius-of-curvature, reduce camera lens cost, effectively eliminated the impact of hot difference on system, reached the characteristic of the image space heart far away.

Description

Near infrared interactive projection camera lens
Technical field
The utility model relates to a kind of optical projection system consisting of three lens, especially relates to a kind of projection lens that can be applicable near infrared interactive system.
Background technology
In recent years, along with the continuous progress of image science and technology, the range of application of projection lens is also more and more wider, and interactive projection equipment progressively rises.In order to be applicable to miniaturization electronic equipment and interactively demand, projection lens need to, when guaranteeing miniaturization, have enough field angle, and guarantee obtaining of good image quality and information.Traditional projection lens is generally used for imaging, by adopting more eyeglass to eliminate various aberrations, to improve resolution, but can make projection lens total length elongated, is unfavorable for miniaturization; And general large field angle projection lens, distortion all can be larger, and image quality is not high; .If the patent No. is the utility model patent of " CN102879888A ", this projection lens sequentially has seven eyeglasses and a total reflection prism, eyeglass number and the prism location of this camera lens, determined that this Lens cannot further dwindle, although there is good image quality, but this structure cannot guarantee the heart characteristic far away of lens combination, thereby make that light is inhomogeneous may occur shade.
Interactive device mainly relies on through camera lens projection and produces signal, then catches image through imaging lens, further by image processing software, information is extracted, thereby is realized the interactive functions such as multi-point touch, gesture identification.Therefore, the signal quality of projection lens simulation has conclusive effect to the precision of information extraction.And infrared band is because of the characteristic of himself, impact that can elimination visible ray, more easily realizes the extraction of information.
Therefore, the utility model proposes a kind of interactive projection camera lens that is applied to infrared band, there is the characteristic of large field angle, large aperture and miniaturization, and effectively eliminate the poor impact on lens system of heat, reach the effect of the image space heart far away simultaneously.
Utility model content
In view of the above problems, the utility model proposes a kind of near infrared interactive projection camera lens with large field angle, large aperture and miniaturization, adopt glass and plastics to mix the design of using, reduced production cost, effectively eliminated the impact of hot difference on camera lens, control to one-piece construction and each lens shape, thus reached the effect of the image space heart far away.
A near infrared interactive projection camera lens, sequentially comprises from imaging side to image source side:
The first lens of tool negative power, its imaging side is concave surface;
Make the catoptrics face of light path bending;
The second lens of tool positive light coke, its image source side is convex surface;
The 3rd lens of tool positive light coke, its image source side is convex surface;
In the utility model near infrared interactive projection camera lens, first lens and the second lens two sides are aspheric surface, and the 3rd lens both sides are sphere.
In the near infrared interactive projection camera lens that the utility model provides, between first lens and the second lens, be provided with a diaphragm, the 3rd lens are made by glass, in this plastic lens, insert the structure of glass mirror, coordinate again rational shape and structure design, can effectively eliminate the poor impact on this camera lens of heat.
In the near infrared interactive projection camera lens that the utility model provides, ImgH is half of image source diameter diagonal line length; D is first lens imaging side to the vertical height of the central optical axis perpendicular to image source, will meet following relationship:
0.4<ImgH/D<0.7
Meet the characteristic that above relational expression is conducive to realize miniaturization, to be applied on portable product.
In the near infrared interactive projection camera lens that the utility model provides, f3 is the focal length of the 3rd lens, and the whole focal length that f is lens system will meet following relationship:
3<f3/f<6
The 3rd lens are made by glass, in above formula requirement in addition, can effectively eliminate the poor impact on this camera lens of heat, are conducive to the characteristic of the image space heart far away simultaneously.
In the near infrared interactive projection camera lens that the utility model provides, R3, R4 are respectively the radius-of-curvature of the second lens imaging side and image source side, will meet following relationship:
0.2<(R3+R4)/(R3-R4)<1.2
The second lens meet above formula requirement and are conducive to the image space heart far away, improve image quality.
In the near infrared interactive projection camera lens that the utility model provides, R5, R6 are respectively the radius-of-curvature of the 3rd lens imaging side and image source side, will meet following relationship:
0.2<(R5+R6)/(R5-R6)<1.2
The 3rd lens meet above requirement, are conducive to image space of the present utility model heart characteristic far away, allow light keep evenly, without dark angle, and revise preferably distortion.
Preferably, described first lens image source side is convex surface.
Preferably, described the second lens imaging side is convex surface.
Preferably, described the 3rd lens imaging side is convex surface.
Preferably, described in to make the catoptrics face of light path bending can be reflecting prism, can be also plane of reflection mirror.
The utility model has adopted three lens, realized the technique effect of large field angle, large aperture, miniaturization, by plastic and glass combine and different focal powers is distributed, reduced production cost, eliminate the impact of hot difference on system, reached the characteristic of the image space heart far away simultaneously.
Accompanying drawing explanation
Fig. 1 is the primary structure schematic diagram of the embodiment 1 of the near infrared interactive projection camera lens that provides of the utility model;
Fig. 2 is chromaticity difference diagram on the axle in embodiment 1 (mm);
Fig. 3 is the astigmatism figure (mm) in embodiment 1;
Fig. 4 is the distortion figure (%) in embodiment 1;
Fig. 5 is the ratio chromatism, figure (μ m) in embodiment 1;
Fig. 6 is the primary structure schematic diagram of the embodiment 2 of the near infrared interactive projection camera lens that provides of the utility model;
Fig. 7 is chromaticity difference diagram on the axle in embodiment 2 (mm);
Fig. 8 is the astigmatism figure (mm) in embodiment 2;
Fig. 9 is the distortion figure (%) in embodiment 2;
Figure 10 is the ratio chromatism, figure (μ m) in embodiment 2;
Figure 11 is the primary structure schematic diagram of the embodiment 3 of the near infrared interactive projection camera lens that provides of the utility model;
Figure 12 is chromaticity difference diagram on the axle in embodiment 3 (mm);
Figure 13 is the astigmatism figure (mm) in embodiment 3;
Figure 14 is the distortion figure (%) in embodiment 3;
Figure 15 is the ratio chromatism, figure (μ m) in embodiment 3;
Figure 16 is the primary structure schematic diagram of the embodiment 4 of the near infrared interactive projection camera lens that provides of the utility model;
Figure 17 is chromaticity difference diagram on the axle in embodiment 4 (mm);
Figure 18 is the astigmatism figure (mm) in embodiment 4;
Figure 19 is the distortion figure (%) in embodiment 4;
Figure 20 is the ratio chromatism, figure (μ m) in embodiment 4;
Figure 21 is the primary structure schematic diagram of the embodiment 5 of the near infrared interactive projection camera lens that provides of the utility model;
Figure 22 is chromaticity difference diagram on the axle in embodiment 5 (mm);
Figure 23 is the astigmatism figure (mm) in embodiment 5;
Figure 24 is the distortion figure (%) in embodiment 5;
Figure 25 is the ratio chromatism, figure (μ m) in embodiment 5;
Figure 26 is the primary structure schematic diagram of the embodiment 6 of the near infrared interactive projection camera lens that provides of the utility model;
Figure 27 is chromaticity difference diagram on the axle in embodiment 6 (mm);
Figure 28 is the astigmatism figure (mm) in embodiment 6;
Figure 29 is the distortion figure (%) in embodiment 6;
Figure 30 is the ratio chromatism, figure (μ m) in embodiment 6.
Embodiment
With reference to the accompanying drawings above-mentioned utility model content is specifically described:
As shown in Figure 1, in embodiment 1, this near infrared interactive projection camera lens is sequentially comprised by imaging side to image source side: the first lens E1 of tool negative power, and its imaging side is concave surface, and image source side is convex surface, and imaging side and image source side are aspheric surface; Make the reflecting prism E2 of light path bending; The second lens E3 of tool positive light coke, its imaging side is convex surface, image source side is convex surface, and imaging side and image source side are aspheric surface; The 3rd lens E4 of tool positive light coke, its imaging side is convex surface, image source side is convex surface, and imaging side and image source side are sphere; Diaphragm is between first lens E1 and the second lens E3; In described projection lens system, the 3rd lens E4 is made by glass.
From imaging side to image source side, the two sides of first lens E1 is S1, S2, and diaphragm face is S3, and the two sides of the second lens E3 is S4, S5, and the two sides of the 3rd lens E4 is S6, S7, and image source is S8.
In embodiment 1, each parameter is as described below: TTL=11.10; F1=-3.58; F2=4.45; F3=5.53; F=1.56;
f3/f＝3.56；
ImgH/D＝0.58；
(R3+R4)/(R3-R4)＝0.74；
(R5+R6)/(R5-R6)＝0.25；
Systematic parameter: stop value 2.8
Table 1
Surface number Surface type Radius-of-curvature Thickness Material Effective aperture Circular cone coefficient
obj Sphere Infinite 467.0000 414.4300
1 Aspheric surface -1.2163 0.4717 F52R 1.9503 -8.6544
2 Aspheric surface -3.8848 0.5552 1.3017 -150.6171
3 Sphere Infinite 2.5500 H-K9L 1.2618
4 Sphere Infinite 0.1000 0.5748
stop Sphere Infinite 1.4357 0.4971
6 Aspheric surface 17.8461 1.1684 F52R 1.4018 -60.3983
7 Aspheric surface -2.6404 0.0921 1.5640 -2.6443
8 Sphere 8.7790 1.8211 H-ZK11 1.6968
9 Sphere -5.3074 2.9059 1.7668
IMG Sphere Infinite 1.3102
Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, the A12 of non-spherical lens:
Table 2
As shown in Figure 6, in embodiment 2, this near infrared interactive projection camera lens is sequentially comprised by imaging side to image source side: the first lens E1 of tool negative power, and its imaging side is concave surface, and image source side is concave surface, and imaging side and image source side are aspheric surface; Make the reflecting prism E2 of light path bending; The second lens E3 of tool positive light coke, its imaging side is convex surface, image source side is convex surface, and imaging side and image source side are aspheric surface; The 3rd lens E4 of tool positive light coke, its imaging side is convex surface, image source side is convex surface, and imaging side and image source side are sphere; Diaphragm is between first lens E1 and the second lens E3; In described projection lens system, the 3rd lens E4 is made by glass.
From imaging side to image source side, the two sides of first lens E1 is S1, S2, and diaphragm face is S3, and the two sides of the second lens E3 is S4, S5, and the two sides of the 3rd lens E4 is S6, S7, and image source is S8.
In embodiment 2, each parameter is as described below: TTL=10.69; F1=-2.99; F2=3.7; F3=4.92; F=1.26;
f3/f＝3.9；
ImgH/D＝0.45；
(R3+R4)/(R3-R4)＝0.6；
(R5+R6)/(R5-R6)＝0.7；
Systematic parameter: stop value 2.8
Table 3
Surface number Surface type Radius-of-curvature Thickness Material Effective aperture Circular cone coefficient
obj Sphere Infinite 467.0000 414.4507
1 Aspheric surface -1.6010 0.4265 F52R 1.8707 -10.1953
2 Aspheric surface 101.0876 0.6491 1.2334 100.0002
3 Sphere Infinite 2.6348 H-K9L 1.1825
4 Sphere Infinite 0.1391 0.5267
stop Sphere Infinite 1.2536 0.4372
6 Aspheric surface 9.3840 1.2821 F52R 1.1696 -62.7585
7 Aspheric surface -2.3465 0.4794 1.3990 -2.9212
8 Sphere 20.1827 1.3155 H-ZK11 1.5709
9 Sphere -3.5629 2.5110 1.6478
IMG Sphere Infinite 1.0793
Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, the A12 of non-spherical lens:
Table 4
As shown in figure 11, in embodiment 3, this near infrared interactive projection camera lens is sequentially comprised by imaging side to image source side: the first lens E1 of tool negative power, and its imaging side is concave surface, and image source side is convex surface, and imaging side and image source side are aspheric surface; Make the reflecting prism E2 of light path bending; The second lens E3 of tool positive light coke, its imaging side is concave surface, image source side is convex surface, and imaging side and image source side are aspheric surface; The 3rd lens E4 of tool positive light coke, its imaging side is convex surface, image source side is convex surface, and imaging side and image source side are sphere; Diaphragm is between first lens E1 and the second lens E3; In described projection lens system, the 3rd lens E4 is made by glass.
From imaging side to image source side, the two sides of first lens E1 is S1, S2, and diaphragm face is S3, and the two sides of the second lens E3 is S4, S5, and the two sides of the 3rd lens E4 is S6, S7, and image source is S8.
In embodiment 3, each parameter is as described below: TTL=11.5; F1=-3.69; F2=4.82; F3=5.29; F=1.66;
f3/f＝3.19；
ImgH/D＝0.63；
(R3+R4)/(R3-R4)＝1.01；
(R5+R6)/(R5-R6)＝0.58；
Systematic parameter: stop value 2.8
Table 5
Surface number Surface type Radius-of-curvature Thickness Material Effective aperture Circular cone coefficient
obj Sphere Infinite 467.0000 414.4145
1 Aspheric surface -1.2123 0.4774 F52R 1.9415 -9.0087
2 Aspheric surface -3.6559 0.5100 1.2927 -139.7000
3 Sphere Infinite 2.5524 H-K9L 1.2587
4 Sphere Infinite 0.0513 0.5440
stop Sphere Infinite 1.4025 0.5174
6 Aspheric surface -399.9996 1.0971 F52R 1.3600 499.8527
7 Aspheric surface -2.5291 0.1267 1.5759 -2.7015
8 Sphere 15.0123 2.0931 H-ZK11 1.7721
9 Sphere -4.0415 3.1857 1.9389
IMG Sphere Infinite 1.4196
Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, the A12 of non-spherical lens:
Table 6
As shown in figure 16, in embodiment 4, this near infrared interactive projection camera lens is sequentially comprised by imaging side to image source side: the first lens E1 of tool negative power, and its imaging side is concave surface, and image source side is convex surface, and imaging side and image source side are aspheric surface; Make the reflecting prism E2 of light path bending; The second lens E3 of tool positive light coke, its imaging side is convex surface, image source side is convex surface, and imaging side and image source side are aspheric surface; The 3rd lens E4 of tool positive light coke, its imaging side is concave surface, image source side is convex surface, and imaging side and image source side are sphere; Diaphragm is between first lens E1 and the second lens E3; In described projection lens system, the 3rd lens E4 is made by glass.
From imaging side to image source side, the two sides of first lens E1 is S1, S2, and diaphragm face is S3, and the two sides of the second lens E3 is S4, S5, and the two sides of the 3rd lens E4 is S6, S7, and image source is S8.
In embodiment 4, each parameter is as described below: TTL=10.64; F1=-3.21; F2=3.67; F3=5.73; F=1.27;
f3/f＝4.5；
ImgH/D＝0.46；
(R3+R4)/(R3-R4)＝0.49；
(R5+R6)/(R5-R6)＝1.11；
Systematic parameter: stop value 2.8
Table 7
Surface number Surface type Radius-of-curvature Thickness Material Effective aperture Circular cone coefficient
obj Sphere Infinite 467.0000 414.4204
1 Aspheric surface -1.1657 0.4679 F52R 1.9186 -7.9657
2 Aspheric surface -4.2718 0.6078 1.2692 -197.4554
3 Sphere Infinite 2.5670 H-K9L 1.2454
4 Sphere Infinite 0.2031 0.5376
stop Sphere Infinite 1.3200 0.4371
6 Aspheric surface 7.2110 1.6244 F52R 1.3082 -113.1454
7 Aspheric surface -2.4405 0.0500 1.5275 -2.2567
8 Sphere -64.3842 0.9000 H-ZK11 1.6410
9 Sphere -3.4327 2.9022 1.8050
IMG Sphere Infinite 1.0888
Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, the A12 of non-spherical lens:
Table 8
As shown in figure 21, in embodiment 5, this near infrared interactive projection camera lens is sequentially comprised by imaging side to image source side: the first lens E1 of tool negative power, and its imaging side is concave surface, and image source side is concave surface, and imaging side and image source side are aspheric surface; Make the reflecting prism E2 of light path bending; The second lens E3 of tool positive light coke, its imaging side is convex surface, image source side is convex surface, and imaging side and image source side are aspheric surface; The 3rd lens E4 of tool positive light coke, its imaging side is concave surface, image source side is convex surface, and imaging side and image source side are sphere; Diaphragm is between first lens E1 and the second lens E3; In described projection lens system, the 3rd lens E4 is made by glass.
From imaging side to image source side, the two sides of first lens E1 is S1, S2, and diaphragm face is S3, and the two sides of the second lens E3 is S4, S5, and the two sides of the 3rd lens E4 is S6, S7, and image source is S8.
In embodiment 5, each parameter is as described below: TTL=9.08; F1=-2.42; F2=2.94; F3=5.53; F=1.05;
f3/f＝5.27；
ImgH/D＝0.42；
(R3+R4)/(R3-R4)＝0.34；
(R5+R6)/(R5-R6)＝1.03；
Systematic parameter: stop value 2.8
Table 9
Surface number Surface type Radius-of-curvature Thickness Material Effective aperture Circular cone coefficient
obj Sphere Infinite 467.0000 414.2489
1 Aspheric surface -1.4646 0.5140 F52R 1.6154 -9.0527
2 Aspheric surface 11.1734 0.6292 1.0305 -14.7194
3 Sphere Infinite 1.9948 H-K9L 0.9189
4 Sphere Infinite 0.0752 0.4308
stop Sphere Infinite 1.2635 0.3669
6 Aspheric surface 4.3484 1.4499 F52R 1.0953 -39.3139
7 Aspheric surface -2.1280 0.0921 1.2990 -2.6316
8 Sphere -240.4137 0.5721 H-ZK11 1.3469
9 Sphere -3.4338 2.4930 1.3687
IMG Sphere Infinite 0.9086
Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, the A12 of non-spherical lens:
Table 10
As shown in figure 26, the near infrared interactive projection camera lens that embodiment 6 provides, is sequentially comprised by imaging side to image source side: the first lens E1 of tool negative power, and its imaging side is concave surface, and image source side is convex surface, and imaging side and image source side are aspheric surface; Make the plane of reflection mirror E2 of light path bending; The second lens E3 of tool positive light coke, its imaging side is convex surface, image source side is convex surface, and imaging side and image source side are aspheric surface; The 3rd lens E4 of tool positive light coke, its imaging side is convex surface, image source side is convex surface, and imaging side and image source side are sphere; Diaphragm is between first lens E1 and the second lens E3; In described projection lens system, the 3rd lens E4 is made by glass.
From imaging side to image source side, the two sides of first lens E1 is S1, S2, diaphragm face is S3, the two sides of the second lens E3 is S4, S5, the two sides of the 3rd lens E4 is S6, S7, and image source is S8, and wherein two faces of coordinate breakpoint are distinctive two faces during design reflectivity level crossing in zemax optical design software, if use other software to realize plane of reflection mirror, the change of making according to each software feature is all within the scope of the utility model.
In embodiment 6, each parameter is as described below: TTL=7.22; F1=-3.58; F2=4.41; F3=5.53; F=1.66;
f3/f＝3.33；
ImgH/D＝0.53；
(R3+R4)/(R3-R4)＝0.74；
(R5+R6)/(R5-R6)＝0.25；
Systematic parameter: stop value 2.8
Table 11
Surface number Surface type Radius-of-curvature Thickness Material Effective aperture Circular cone coefficient
obj Sphere Infinite 467.0000 414.4650
1 Aspheric surface -1.2163 0.4836 F52R 1.9210 -7.0477
2 Aspheric surface -3.8848 1.9000 1.2640 -94.5295
3 Coordinate breakpoint 0.0000 0.0000
4 Sphere Infinite 0.0000 MIRROR 1.5929
5 Coordinate breakpoint -0.5700 0.0000
stop Sphere Infinite -1.1751 0.5414
7 Aspheric surface -17.8461 -0.6024 F52R 1.2178 -371.1687
8 Aspheric surface 2.6404 -0.1000 1.3005 -1.8237
9 Sphere -8.7790 -1.7821 H-ZK11 1.4139
10 Sphere 5.3074 -2.9945 1.5164
IMG Sphere Infinite 1.2614
Following table is aspheric surface high-order term coefficient A4, A6, A8, A10, the A12 of non-spherical lens:
Table 12
Fig. 2 is chromaticity difference diagram (mm) on the axle of embodiment 1, and Fig. 3 is the astigmatism figure (mm) of embodiment 1, and Fig. 4 is the distortion figure (%) of embodiment 1, and Fig. 5 is the ratio chromatism, figure (μ m) of embodiment 1.
Fig. 7 is chromaticity difference diagram (mm) on the axle of embodiment 2, and Fig. 8 is the astigmatism figure (mm) of embodiment 2, and Fig. 9 is the distortion figure (%) of embodiment 2, and Figure 10 is the ratio chromatism, figure (μ m) of embodiment 2.
Figure 12 is chromaticity difference diagram (mm) on the axle of embodiment 3, and Figure 13 is the astigmatism figure (mm) of embodiment 3, and Figure 14 is the distortion figure (%) of embodiment 3, and Figure 15 is the ratio chromatism, figure (μ m) of embodiment 3.
Figure 17 is chromaticity difference diagram (mm) on the axle of embodiment 4, and Figure 18 is the astigmatism figure (mm) of embodiment 4, and Figure 19 is the distortion figure (%) of embodiment 4, and Figure 20 is the ratio chromatism, figure (μ m) of embodiment 4.
Figure 22 is chromaticity difference diagram (mm) on the axle of embodiment 5, and Figure 23 is the astigmatism figure (mm) of embodiment 5, and Figure 24 is the distortion figure (%) of embodiment 5, and Figure 25 is the ratio chromatism, figure (μ m) of embodiment 5.
Figure 27 is chromaticity difference diagram (mm) on the axle of embodiment 6, and Figure 28 is the astigmatism figure (mm) of embodiment 6, and Figure 29 is the distortion figure (%) of embodiment 6, and Figure 30 is the ratio chromatism, figure (μ m) of embodiment 6.
By chromaticity difference diagram, astigmatism figure, distortion figure and ratio chromatism, figure on the axle of each embodiment, can find out and the utlity model has good optical property.
Although described principle of the present utility model and embodiment near infrared interactive projection camera lens above; but under above-mentioned instruction of the present utility model; those skilled in the art can carry out various improvement and distortion with other software on the basis of above-described embodiment, and these improvement or distortion all drop in protection domain of the present utility model.It will be understood by those skilled in the art that specific descriptions are above in order to explain the purpose of this utility model, and not for limiting the utility model, protection domain of the present utility model is limited by claim and equivalent thereof.

Claims (10)

1. a near infrared interactive projection camera lens, is characterized in that: from imaging side to image source side, sequentially comprise:
The first lens of tool negative power, its imaging side is concave surface;
Make the catoptrics face of light path bending;
The second lens of tool positive light coke, its image source side is convex surface;
The 3rd lens of tool positive light coke, its image source side is convex surface;
Diaphragm is placed between first lens and the second lens, and described camera lens meets following relationship:
0.4<ImgH/D<0.7
Wherein, ImgH is half of image source diameter diagonal line length; D is that first lens imaging side is to the vertical height of the central optical axis perpendicular to image source.
2. near infrared interactive projection camera lens according to claim 1, is characterized in that: in described camera lens, the both sides of first lens and the second lens are aspheric surface, and the both sides of the 3rd lens are sphere.
3. near infrared interactive projection camera lens according to claim 2, is characterized in that: in described camera lens, the 3rd lens are made by glass material.
4. near infrared interactive projection camera lens according to claim 3, is characterized in that: described camera lens meets following relationship: 3<f3/f<6
Wherein, f3 is the focal length of the 3rd lens, the whole focal length that f is lens system.
5. near infrared interactive projection camera lens according to claim 4, is characterized in that: described camera lens meets following relationship: the <1.2 of 0.2< (R3+R4)/(R3-R4)
Wherein, R3 is the radius-of-curvature of the imaging side of the second lens, and R4 is the radius-of-curvature of the image source side of the second lens.
6. near infrared interactive projection camera lens according to claim 5, is characterized in that: described camera lens meets following relationship: the <1.2 of 0.2< (R5+R6)/(R5-R6)
Wherein, R5 is the radius-of-curvature of the imaging side of the 3rd lens, and R6 is the radius-of-curvature of the image source side of the 3rd lens.
7. according to the arbitrary described near infrared interactive projection camera lens of claim 1-6, it is characterized in that: described first lens image source side is convex surface.
8. near infrared interactive projection camera lens according to claim 7, is characterized in that: described the second lens imaging side is convex surface.
9. near infrared interactive projection camera lens according to claim 8, is characterized in that: described the 3rd lens imaging side is convex surface.
10. according to claim 1-6,8,9 arbitrary described near infrared interactive projection camera lenses, it is characterized in that: described in to make the catoptrics face of light path bending be reflecting prism, or plane of reflection mirror.
CN201420406113.7U 2014-07-22 2014-07-22 Near infrared interactive projection camera lens Withdrawn - After Issue CN204009210U (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201420406113.7U CN204009210U (en) 2014-07-22 2014-07-22 Near infrared interactive projection camera lens
US14/779,756 US9568714B2 (en) 2014-07-22 2015-01-30 Projection lens
PCT/CN2015/072054 WO2016011802A1 (en) 2014-07-22 2015-01-30 Projection lens
EP15763813.1A EP3001235B1 (en) 2014-07-22 2015-01-30 Projection lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420406113.7U CN204009210U (en) 2014-07-22 2014-07-22 Near infrared interactive projection camera lens

Publications (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104142566A (en) * 2014-07-22 2014-11-12 浙江舜宇光学有限公司 Near-infrared interactive projection lens
WO2016011802A1 (en) * 2014-07-22 2016-01-28 浙江舜宇光学有限公司 Projection lens
CN110050216A (en) * 2017-01-19 2019-07-23 镜元科技股份有限公司 Terahertz-girz fish glasses system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104142566A (en) * 2014-07-22 2014-11-12 浙江舜宇光学有限公司 Near-infrared interactive projection lens
WO2016011802A1 (en) * 2014-07-22 2016-01-28 浙江舜宇光学有限公司 Projection lens
US9568714B2 (en) 2014-07-22 2017-02-14 Zhejiang Sunny Optics Co., Ltd. Projection lens
CN110050216A (en) * 2017-01-19 2019-07-23 镜元科技股份有限公司 Terahertz-girz fish glasses system

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