CN108375829A - The excellent optical eyepiece camera lens of image quality and wear display equipment - Google Patents
The excellent optical eyepiece camera lens of image quality and wear display equipment Download PDFInfo
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- CN108375829A CN108375829A CN201810170858.0A CN201810170858A CN108375829A CN 108375829 A CN108375829 A CN 108375829A CN 201810170858 A CN201810170858 A CN 201810170858A CN 108375829 A CN108375829 A CN 108375829A
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- lens
- optical
- image side
- eyepiece camera
- optical axis
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B25/00—Eyepieces; Magnifying glasses
- G02B25/001—Eyepieces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—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
- G02B13/0015—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
- G02B13/0045—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 five or more lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/011—Head-up displays characterised by optical features comprising device for correcting geometrical aberrations, distortion
Abstract
The present invention relates to the excellent optical eyepiece camera lens of image quality and wear display equipment.The invention discloses a kind of optical eyepiece camera lenses, include sequentially first lens with refractive index, the second lens, the third lens, the 4th lens and the 5th lens along optical axis from image side to object side, each lens respectively include one towards image side and the image side surface for making imaging light pass through and one towards object side and the object side that makes imaging light pass through；First lens, the third lens and the 4th lens are positive lens；Second lens and the 5th lens are negative lens；First lens to the 5th lens are non-spherical lens；And the material of the first lens to the 5th lens is plastics.The invention also discloses a kind of head-mounted display apparatus with above-mentioned optical eyepiece camera lens.The present invention provides one kind in the case of possessing good optical property, and with more slim light and handy, characteristic of low cost optical eyepiece camera lens and wears display equipment, improves user experience.
Description
Technical field
The present invention relates to head-mounted display apparatus and its optical eyepiece camera lens, and the especially excellent optics mesh of image quality
Lens head and wear display equipment.
Background technology
In recent years, due to the rise of wearable electronic so that micro- comprising optical lens system and miniscope etc.
The display module of miniaturization flourishes, and is widely used in head-mounted display apparatus.Head-mounted display apparatus is widely used in
The fields such as military affairs, space flight, medical treatment, amusement, simulated training.As head-mounted display apparatus is applied more and more widely, to it
Image quality require also higher and higher, and the quality of image quality depends primarily on optical eyepiece system.
In order to improve the optical property and image quality of optical eyepiece system, in the prior art, through frequently with multi-disc lens
Combination realizes, is to use 4 chip lens groups if CN104570323A proposes that one kind wearing eyepiece system and wears display equipment
It closes.The optical lens that for another example CN105116523A is proposed, is composed using six-element lens.It is existing saturating using multi-disc
Although the optical eyepiece system that microscope group is closed can have preferable optical property and image quality, its size is larger, heavy, nothing
Method meets the requirement of equipment microminaturization, and most of is all to use glass lens, and of high cost and product is heavier, reduces user
Experience sense.
Invention content
Present invention aims at providing one kind in order to solve the above problem and possessing good optical property, ensure into image quality
While measuring excellent, and with slim light and handy, characteristic of low cost, improves the optical eyepiece camera lens of user experience and wear display
Equipment.
For this purpose, the invention discloses a kind of optical eyepiece camera lens, along optical axis include sequentially from image side to object side the first lens,
Second lens, the third lens, the 4th lens and the 5th lens, first lens, the second lens, the third lens, the 4th lens
Refractive index is all had with the 5th lens, and respectively includes one towards image side and the image side surface for making imaging light pass through and one towards object
Side and the object side for making imaging light pass through, first lens, the second lens, the third lens, the 4th lens and the 5th lens
Meet claimed below
Nd1 >=1.54, Nd2 >=1.59, Nd3 >=1.54, Nd4 >=1.54, Nd5 >=1.59
Vd1<56.2 Vd2<30, Vd3<56.2 Vd4<56.2 Vd5<30
1.20≤f1/f<2.35
-2.90<f2/f≤-1.24
1.40<f3/f<5.85
1.00<f4/f<2.20
-39.50<f5/f<-1.15
1.35<f13/f≤2.75
0.15<f13/f45≤1.56
0.95≤EPP/f≤1.25
Wherein, Nd1, Nd2, Nd3, Nd4, Nd5 indicate respectively the first lens, the second lens, the third lens, the 4th lens and
5th lens d lines refractive index, Vd1, Vd2, Vd3, Vd4, Vd5 indicate respectively the first lens, the second lens, the third lens,
In the abbe number of d lines, f1, f2, f3, f4, f5 are respectively the first lens, the second lens, third for 4th lens and the 5th lens
The focal length of lens, the 4th lens, the 5th lens, f are system focal length, and f13 is the first lens, the second lens and the third lens
Combined focal length, f45 are the combined focal length of the 4th lens and the 5th lens, and EPP is for the first lens image side surface to emergent pupil face in optical axis
On distance.
The present invention also provides one kind wearing display equipment, including
One casing, and
One display module is installed in the casing, including：
At least one optical eyepiece camera lens as described above,
An at least image source display is set to the object side of the optical eyepiece camera lens.
The advantageous effects of the present invention：
The present invention uses the lens of plastic material, selects and arranges by the positive negative lens to each lens, and to its light
It learns parameter to be selected and be collocated with each other, so that it is being possessed good optical property, while ensureing that image quality is excellent, and have
There is slim light and handy, characteristic of low cost, improves user experience.
Description of the drawings
Fig. 1 is that the cross-section structure of the first embodiment of the present invention is intended to；
Fig. 2 is the astigmatism of the first embodiment of the present invention and distorts the curve graph of aberration；
Fig. 3 is the curve graph of the longitudinal aberration of the first embodiment of the present invention；
Fig. 4 is the curve graph of the lateral chromatic aberration of the first embodiment of the present invention；
Fig. 5 is that the cross-section structure of the second embodiment of the present invention is intended to；
Fig. 6 is the astigmatism of the second embodiment of the present invention and distorts the curve graph of aberration；
Fig. 7 is the curve graph of the longitudinal aberration of the second embodiment of the present invention；
Fig. 8 is the curve graph of the lateral chromatic aberration of the second embodiment of the present invention；
Fig. 9 is that the cross-section structure of the third embodiment of the present invention is intended to；
Figure 10 is the astigmatism of the third embodiment of the present invention and distorts the curve graph of aberration；
Figure 11 is the curve graph of the longitudinal aberration of the third embodiment of the present invention；
Figure 12 is the curve graph of the lateral chromatic aberration of the third embodiment of the present invention；
Figure 13 is that the cross-section structure of the fourth embodiment of the present invention is intended to；
Figure 14 is the astigmatism of the fourth embodiment of the present invention and distorts the curve graph of aberration；
Figure 15 is the curve graph of the longitudinal aberration of the fourth embodiment of the present invention；
Figure 16 is the curve graph of the lateral chromatic aberration of the fourth embodiment of the present invention；
Figure 17 is that the cross-section structure of the fifth embodiment of the present invention is intended to；
Figure 18 is the astigmatism of the fifth embodiment of the present invention and distorts the curve graph of aberration；
Figure 19 is the curve graph of the longitudinal aberration of the fifth embodiment of the present invention；
Figure 20 is the curve graph of the lateral chromatic aberration of the fifth embodiment of the present invention.
Specific implementation mode
To further illustrate that each embodiment, the present invention are provided with attached drawing.These attached drawings are that the invention discloses one of content
Point, mainly to illustrate embodiment, and the associated description of specification can be coordinated to explain the operation principles of embodiment.Cooperation ginseng
These contents are examined, those of ordinary skill in the art will be understood that other possible embodiments and advantages of the present invention.In figure
Component be not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
For the ease of indicating the signified parameter of the present invention, defined in this specification and attached drawing：
The image side surface of first lens 3 is 31, and the object side of first lens 3 is 32, the image side surface 31 of first lens 3
To distance of the object side 32 on optical axis I, i.e. thickness of the first lens 3 on optical axis I is T1；The image side surface of second lens 4
It is 41, the object sides of second lens 4 is 42, the distance of the image side surfaces 41 of second lens 4 to object side 42 on optical axis I,
That is thickness of the second lens 4 on optical axis I is T2；The image side surface of the third lens 5 is 51, and the object side of the third lens 5 is
52, the distance of the image side surfaces 51 of the third lens 5 to object side 52 on optical axis I, i.e. thickness of the third lens 5 on optical axis I
For T3；The image side surface of 4th lens 6 is 61, and the object sides of the 4th lens 6 is 62, the image side surfaces 61 of the 4th lens 6 to
Distance of the object side 62 on optical axis I, i.e. thickness of the 4th lens 6 on optical axis I are T4；The image side surface of 5th lens 7 is
71, the object sides of the 5th lens 7 is 72, the distance of the image side surfaces 71 of the 5th lens 7 to object side 72 on optical axis I, i.e.,
Thickness of 5th lens 7 on optical axis I is T5；The object side 32 of first lens 3 exists with the image side surface 41 of second lens 4
Distance on optical axis I, the i.e. the air gap of the first lens 3 and the second lens 4 on optical axis I are G12；Second lens 4 and third
The air gap of the lens 5 on optical axis I is G23；The air gap of the third lens 5 and the 4th lens 6 on optical axis I is G34；
The air gap of 4th lens 6 and the 5th lens 7 on optical axis I is G45；First lens 3 are to the 5th lens 7 on optical axis I
All the air gap summations are Gaa；Thickness of the protective glass 8 on optical axis I is TCG；Diaphragm 2 exists to image source display 100
Distance on optical axis I is TTL；Distance of the image side surface 31 on optical axis I of diaphragm 2 (namely emergent pupil face) to the first lens 3 be
EPP；The system focal length of optical eyepiece camera lens is f；The focal length of first lens 3 is f1；The focal length of second lens 4 is f2；Third is saturating
The focal length of mirror 5 is f3；The focal length of 4th lens 6 is f4；The focal length of 5th lens 7 is f5；First lens 3 are to the third lens 5
Combined focal length is f13；The combined focal length of 4th lens 6 and the 5th lens 7 is f45；First lens, 3 to the 5th lens 7 are in d lines
Refractive index be respectively Nd1, Nd2, Nd3, Nd4, Nd5；First lens, 3 to the 5th lens 7 are respectively in the abbe number of d lines
Vd1、Vd2、Vd3、Vd4、Vd5。
The present invention's wears display equipment, including a casing and a display module, is installed in the casing, the display mould
Block includes：At least an optical eyepiece camera lens and at least an image source display, the image source display are set to the optical eyepiece
On the optical axis of the object side of camera lens.
The optical eyepiece camera lens of the present invention, from image side to object side along optical axis sequentially including the first lens, the second lens, third
Lens, the 4th lens and the 5th lens, first lens, the second lens, the third lens, the 4th lens and the 5th lens have
There is refractive index, and respectively includes one towards image side and the image side surface for making imaging light pass through and one towards object side and make imaging light
By object side, first lens to the 5th lens meet claimed below
Nd1 >=1.54, Nd2 >=1.59, Nd3 >=1.54, Nd4 >=1.54, Nd5 >=1.59
Vd1<56.2 Vd2<30, Vd3<56.2 Vd4<56.2 Vd5<30
1.20≤f1/f<2.35
-2.90<f2/f≤-1.24
1.40<f3/f<5.85
1.00<f4/f<2.20
-39.50<f5/f<-1.15
1.35<f13/f≤2.75
0.15<f13/f45≤1.56
0.95≤EPP/f≤1.25
Further, first lens, the third lens and the 4th lens are positive lens, and second lens and the 5th are thoroughly
Mirror is negative lens
Further, in order to keep camera lens more frivolous, cost is lower and has better optical property, first lens to the
Five lens are that plastic material is made and is non-spherical lens, and aspherical expression formula is
Wherein, Y is the point in aspheric curve at a distance from optical axis I；Z is aspherical depth (apart from light on aspherical
Axis I is the point of Y, with the section for being tangential on vertex on aspherical optical axis I, vertical range between the two)；R is the song of lens surface
Rate radius；K is conical surface coefficient (conic constant)；A2i is 2i rank asphericity coefficients.
Wherein, which can also include a diaphragm (aperture stop) and a protective glass, the diaphragm
It is arranged in face position emergent pupil (exit pupil) of the optical eyepiece camera lens, which is arranged in the 5th lens and image source
On optical axis between display screen.
Further, in order to keep the optical eyepiece camera lens more slim light and handy, while also there is better optical property, then
The air gap configuration between lens thickness and lens just seems important, herein proposes some qualifications：
2.50<T1/Gaa<17.80,
4.80<T1/T2<9.10
0.65<T2/G12≤9.45,
1.20<T4/T5<3.35
In addition, the image side surface of the first lens is preferably plane, it larger can ensure that observation point and the image side surface of the first lens exist
Distance on optical axis is generally higher than equal to 20mm, is suitble to the people of wearing spectacles to use in this way, protects eyesight, need not use and adjust
Coke can not solve the problems, such as astigmatism because focusing can only solve near-sighted long sight.
The optical eyepiece camera lens of the present invention only has aforementioned five lens with refractive index in total, by designing each lens
Detail characteristic, and it can be made to possess good optical property, while ensureing that image quality is excellent, and with slim light and handy
(total length of optical eyepiece camera lens is less than 65mm), characteristic of low cost, improve user experience.By the first lens to the 5th lens
It is glass lens, can significantly reduces product weight, eyeglass gross mass is less than 16g.
In conjunction with the drawings and specific embodiments, the present invention is further described.
Embodiment one：
As shown in Figure 1, the optical eyepiece camera lens of the embodiment, along optical axis I include sequentially from image side to object side a diaphragm 2,
One first lens 3, one second lens 4, a third lens 5, one the 4th lens 6, one the 5th lens 7 and a protective glass 8, it is described
First lens 3, the second lens 4, the third lens 5, the 4th lens 6 and the 5th lens 7 all have refractive index, and respectively include a court
To image side and the image side surface for making imaging light pass through and one towards object side and the object side that makes imaging light pass through.
The diaphragm (aperture stop) 2 is an equivalent diaphragm, and the entity of the component can be not provided in practical application,
The diaphragm 2 is provided in first lens 3 towards on the optical axis I of image side, and positioned at the emergent pupil (exit of the optical eyepiece camera lens
Pupil) face position.The protective glass 8 is provided in the 5th lens 7 towards on the optical axis I of object side, and is shown close to image source
Screen 100, usually made by planar optics material, does not influence the focal length of optical eyepiece camera lens of the present invention.
First lens 3 are positive lens, with aspherical image side surface 31 and object side 32, optical parameter such as one institute of table
Show, asphericity coefficient is as shown in Table 2.
Second lens 4 are negative lens, with aspherical image side surface 41 and object side 42, optical parameter such as one institute of table
Show, asphericity coefficient is as shown in Table 2.
The third lens 5 are positive lens, with aspherical image side surface 51 and object side 52, optical parameter such as one institute of table
Show, asphericity coefficient is as shown in Table 2.
4th lens 6 are positive lens, with aspherical image side surface 61 and object side 62, optical parameter such as one institute of table
Show, asphericity coefficient is as shown in Table 2.
5th lens 7 are negative lens, with aspherical image side surface 71 and object side 72, optical parameter such as one institute of table
Show, asphericity coefficient is as shown in Table 2.
Each optics of lens supplemental characteristic of table one, first embodiment
The aspherical parameter of table two, first embodiment
| Face | K | a2 | a4 | a6 | a8 | a10 | a12 |
| Image side surface 31 | - | 0 | - | - | - | - | - |
| Object side 32 | 0.104 | 0 | 1.19E-05 | -2.57E-09 | -4.60E-10 | -5.44E-13 | 2.52E-14 |
| Image side surface 41 | 0.301 | 0 | 1.28E-05 | 2.99E-08 | 2.35E-10 | 8.43E-14 | 2.29E-14 |
| Object side 42 | 2.015 | 0 | -2.82E-05 | 3.93E-08 | 2.96E-10 | -4.20E-13 | -1.22E-15 |
| Image side surface 51 | 1.796 | 0 | 2.14E-05 | 4.10E-10 | 1.26E-10 | -1.03E-12 | 1.31E-16 |
| Object side 52 | 4.110 | 0 | -8.37E+00 | 3.20E-09 | -2.28E-11 | -1.52E-13 | -1.03E-16 |
| Image side surface 61 | -1.006 | 0 | -1.24E-05 | -7.32E-08 | -7.10E-10 | -1.25E-11 | 7.06E-14 |
| Object side 62 | -8.976 | 0 | -6.08E-05 | 5.54E-07 | -8.64E-10 | -3.31E-12 | 5.72E-15 |
| Image side surface 71 | 4.265 | 0 | 1.48E-04 | -6.03E-07 | -2.01E-09 | 5.25E-11 | -3.35E-13 |
| Object side 72 | 1.011 | 0 | 6.40E-04 | -1.28E-06 | 4.16E-08 | -1.34E-09 | 7.31E-12 |
In this embodiment, the air gap G12 between the first lens 3 and the second lens 4 is 0.16mm；Second lens 4
The air gap G23 between the third lens 5 is 0.15mm；The air gap G34 between the third lens 5 and the 4th lens 6 is
0.15mm；The air gap G45 between 4th lens 6 and the 5th lens 7 is 0.18mm；First lens 3 exist to the 5th lens 7
All the air gap summation Gaa on optical axis I are 0.64mm；The image side surface 31 of the 2 to the first lens of diaphragm 3 on optical axis I away from
It is 20mm from EPP；The system focal length f of optical eyepiece camera lens is 20.90mm；First lens 3 to the third lens 5 combined focal length
F13 is 39.59mm；The combined focal length f45 of 4th lens 6 and the 5th lens 7 is 59.57mm.
By simple computation it is found that EPP/f=0.96, T1/Gaa=12.47, T1/T2=7.98, T2/G12=6.25,
T1/T4=1.33, T4/T5=1.23, f1/f=1.48, f2/f=-2.03, f3/f=2.80, f4/f=1.75, f5/f=-
2.78, f13/f=1.89, f13/f45=0.66.The optical eyepiece camera lens of the embodiment meets above-mentioned all conditions and limits
Formula.
In the present embodiment, the distance EPP of the image side surfaces 31 of the 2 to the first lens of diaphragm 3 on optical axis I is 20mm, to have
Effect promotes user experience；The length of distance TTL, that is, optical eyepiece camera lens of the diaphragm 2 to image source display 100 on optical axis I
For 57.55mm, it is less than the 65mm of existing optical eyepiece camera lens, compared to existing optical eyepiece camera lens, optics mesh of the invention
Lens head is more thinned, the economic benefit more to accord with the demands of the market, and eyeglass material is plastics, can significantly reduce product weight
Amount, eyeglass gross mass are less than 16g.
According to above-mentioned optical eyepiece camera lens, which wears display equipment, including a casing, and is installed on the machine
A display module in shell.The display module includes：At least one above-mentioned optical eyepiece camera lens and an at least image source display
100, which is set to the object side of the optical eyepiece camera lens, is located on the optical axis I of the object side of protective glass 8,
In the present embodiment, it is that 0.7 inch of OLED of FullHD (1920*1080) is shown that image source display 100, which selects display resolution,
Screen, compared with traditional micro display screen, the pixel dimension of the OLED display screen is much smaller, can effectively reduce by optical eyepiece
The phenomenon that generating particle after camera lens amplification, improves user experience.
Simultaneously according to fig. 2 to Fig. 4 it is found that the optical eyepiece camera lens have preferably eliminate spherical aberration and chromatic aberation ability,
Preferable image quality can be provided, good optical property is shown.
Embodiment two：
As shown in figure 5, each lens arrangement and embodiment one of the present embodiment are essentially identical, the difference is that, the reality
Optical parameter and the asphericity coefficient for applying each lens of example are different from embodiment one, the optical parameter of each lens of the embodiment and
Asphericity coefficient is respectively as shown in table three and table four
Each optics of lens supplemental characteristic of table three, second embodiment
The aspherical parameter of table four, second embodiment
| Face | K | a2 | a4 | a6 | a8 | a10 | a12 |
| Image side surface 31 | - | 0 | - | - | - | - | - |
| Object side 32 | -0.109 | 0 | -9.22E-06 | 2.82E-07 | 2.74E-10 | 5.01E-12 | 4.86E-14 |
| Image side surface 41 | -0.104 | 0 | 4.29E-05 | -5.88E-08 | 8.06E-10 | 2.71E-12 | 5.45E-14 |
| Object side 42 | 89.795 | 0 | -4.16E-05 | -5.05E-09 | -2.04E-10 | -8.13E-13 | 1.04E-14 |
| Image side surface 51 | -4.153 | 0 | 1.16E-05 | -1.40E-07 | 3.91E-10 | 2.17E-13 | 1.91E-16 |
| Object side 52 | 32.476 | 0 | 3.44E-06 | 1.12E-08 | -1.04E-10 | -5.99E-13 | 5.01E-15 |
| Image side surface 61 | -0.175 | 0 | -8.59E-05 | 3.72E-07 | -3.66E-10 | -1.08E-11 | -5.38E-14 |
| Object side 62 | 13.487 | 0 | 5.31E-05 | -6.41E-08 | -1.45E-09 | 2.14E-11 | -3.63E-14 |
| Image side surface 71 | - | 0 | 2.73E-04 | -1.07E-06 | -1.52E-08 | 2.06E-10 | -6.58E-13 |
| Object side 72 | -0.116 | 0 | 3.90E-04 | -2.22E-06 | 1.24E-07 | -1.75E-09 | 6.05E-12 |
In this embodiment, the air gap G12 between the first lens 3 and the second lens 4 is 0.13mm；Second lens 4
The air gap G23 between the third lens 5 is 0.10mm；The air gap G34 between the third lens 5 and the 4th lens 6 is
0.12mm；The air gap G45 between 4th lens 6 and the 5th lens 7 is 0.09mm；First lens 3 are to the 5th lens 7 in light
All the air gap summation Gaa on axis I are 0.44mm；Distance of the image side surface 31 of the 2 to the first lens of diaphragm 3 on optical axis I
EPP is 20mm；The system focal length f of optical eyepiece camera lens is 20.47mm；First lens 3 to the third lens 5 combined focal length f13
For 28.28mm；The combined focal length f45 of 4th lens 6 and the 5th lens 7 is 178.96mm.
By simple computation it is found that EPP/f=0.98, T1/Gaa=17.74, T1/T2=6.46, T2/G12=9.45,
T1/T4=1.33, T4/T5=2.88, f1/f=1.20, f2/f=-1.24, f3/f=1.44, f4/f=1.28, f5/f=-
1.16, f13/f=1.38, f13/f45=0.16.The optical eyepiece camera lens of the embodiment meets above-mentioned all conditions and limits
Formula.
In the present embodiment, the distance EPP of the image side surfaces 31 of the 2 to the first lens of diaphragm 3 on optical axis I is 20mm, to have
Effect promotes experience sense；The length of optical eyepiece camera lens is 54.97mm, is less than the 65mm of existing optical eyepiece camera lens, compared to existing
Some optical eyepiece camera lenses, optical eyepiece camera lens of the invention are more thinned, the economic benefit more to accord with the demands of the market, and eyeglass
Material is plastics, can significantly reduce product weight, and eyeglass gross mass is less than 16g.It is suitable for display resolution
0.7 inch of OLED display screen of Full-HD (1920*1080), compared with traditional micro display screen, the picture of the OLED display screen
Elemental size is much smaller, can effectively reduce the phenomenon that generating particle after being amplified by optical eyepiece camera lens, improve user experience.
Simultaneously according to Fig. 6 to Fig. 8 it is found that the optical eyepiece camera lens have preferably eliminate spherical aberration and chromatic aberation ability,
Preferable image quality can be provided, good optical property is shown.
Embodiment three：
As shown in figure 9, each lens arrangement and embodiment one of the present embodiment are essentially identical, the difference is that, the reality
Optical parameter and the asphericity coefficient for applying each lens of example are different from embodiment one, the optical parameter of each lens of the embodiment and
Asphericity coefficient is respectively as shown in table five and table six
Each optics of lens supplemental characteristic of table five, 3rd embodiment
The aspherical parameter of table six, 3rd embodiment
| Face | K | a2 | a4 | a6 | a8 | a10 | a12 |
| Image side surface 31 | - | 0 | - | - | - | - | - |
| Object side 32 | 0.077 | 0 | 2.30E-05 | -3.17E-08 | -4.52E-10 | -1.79E-12 | 2.16E-14 |
| Image side surface 41 | 0.383 | 0 | -1.63E-05 | 3.46E-08 | -2.88E-10 | -4.31E-13 | 1.71E-14 |
| Object side 42 | 5.337 | 0 | -3.77E-05 | 2.68E-08 | 3.19E-10 | -3.55E-13 | 7.95E-17 |
| Image side surface 51 | -0.154 | 0 | 8.27E-06 | -8.07E-09 | 1.42E-10 | -8.56E-13 | 4.86E-16 |
| Object side 52 | - | 0 | -1.15E-05 | 5.03E-09 | -2.83E-11 | -2.32E-13 | 2.93E-16 |
| Image side surface 61 | -0.546 | 0 | 4.26E-07 | 1.70E-07 | -1.01E-09 | -1.36E-11 | 5.46E-14 |
| Object side 62 | -4.551 | 0 | -9.69E-05 | 7.32E-07 | -7.00E-10 | -3.70E-12 | 6.84E-17 |
| Image side surface 71 | 4.291 | 0 | 1.57E-04 | -5.06E-07 | -1.75E-09 | 5.24E-11 | -3.40E-13 |
| Object side 72 | -5.851 | 0 | 6.30E-04 | -2.63E-06 | 1.23E-07 | -1.56E-09 | 5.93E-12 |
In this embodiment, the air gap G12 between the first lens 3 and the second lens 4 is 0.32mm；Second lens 4
The air gap G23 between the third lens 5 is 0.14mm；The air gap G34 between the third lens 5 and the 4th lens 6 is
0.14mm；The air gap G45 between 4th lens 6 and the 5th lens 7 is 0.17mm；First lens 3 are to the 5th lens 7 in light
All the air gap summation Gaa on axis I are 0.77mm；Distance of the image side surface 31 of the 2 to the first lens of diaphragm 3 on optical axis I
EPP is 24.72mm；The system focal length f of optical eyepiece camera lens is 19.96mm；First lens 3 to the third lens 5 combined focal length
F13 is 28.28mm；The combined focal length f45 of 4th lens 6 and the 5th lens 7 is 178.96mm.
By simple computation it is found that EPP/f=1.24, T1/Gaa=11.51, T1/T2=9.02, T2/G12=3.10,
T1/T4=1.10, T4/T5=3.34, f1/f=1.67, f2/f=-2.47, f3/f=3.03, f4/f=2.18, f5/f=-
39.47, f13/f=1.42, f13/f45=0.16.The optical eyepiece camera lens of the embodiment meets above-mentioned all conditions limit
Fixed pattern.
In the present embodiment, the distance EPP of the image side surfaces 31 of the 2 to the first lens of diaphragm 3 on optical axis I is 24.72mm, from
And effectively promote experience sense；The length of optical eyepiece camera lens is 63.06mm, is less than the 65mm of existing optical eyepiece camera lens, compares
In existing optical eyepiece camera lens, optical eyepiece camera lens of the invention is more thinned, the economic benefit more to accord with the demands of the market, and
Eyeglass material is plastics, can significantly reduce product weight, and eyeglass gross mass is less than 16g.It is suitable for display resolution
0.7 inch of OLED display screen of Full HD (1920*1080), compared with traditional micro display screen, the picture of the OLED display screen
Elemental size is much smaller, can effectively reduce the phenomenon that generating particle after being amplified by optical eyepiece camera lens, improve user experience.
Simultaneously according to Figure 10 to Figure 12 it is found that the optical eyepiece camera lens has the energy for preferably eliminating spherical aberration and chromatic aberation
Power can provide preferable image quality, show good optical property.
Example IV：
As shown in figure 13, each lens arrangement of the present embodiment and embodiment one are essentially identical, the difference is that, the reality
Optical parameter and the asphericity coefficient for applying each lens of example are different from embodiment one, the optical parameter of each lens of the embodiment and
Asphericity coefficient is respectively as shown in table seven and table eight
Each optics of lens supplemental characteristic of table seven, fourth embodiment
The aspherical parameter of table eight, fourth embodiment
| Face | K | a2 | a4 | a6 | a8 | a10 | a12 |
| Image side surface 31 | - | 0 | - | - | - | - | - |
| Object side 32 | 0.046 | 0 | 6.95E-06 | 6.48E-08 | 9.09E-10 | -9.65E-12 | 3.68E-14 |
| Image side surface 41 | 0.843 | 0 | 1.48E-05 | -6.43E-08 | -3.08E-10 | 8.92E-12 | 8.69E-15 |
| Object side 42 | 6.701 | 0 | -3.65E-05 | 1.19E-07 | 6.43E-11 | 3.78E-14 | 6.66E-15 |
| Image side surface 51 | 43.545 | 0 | 2.75E-05 | -1.42E-08 | 3.49E-11 | -9.23E-13 | -1.79E-15 |
| Object side 52 | - | 0 | -7.14E-06 | -1.74E-08 | -8.58E-11 | 7.94E-13 | -3.62E-15 |
| Image side surface 61 | -0.461 | 0 | -8.81E-05 | 1.92E-07 | -7.84E-10 | -1.67E-11 | 4.87E-14 |
| Object side 62 | 232.380 | 0 | -1.39E-05 | 7.73E-07 | -2.38E-09 | -1.32E-11 | 9.36E-14 |
| Image side surface 71 | 252.668 | 0 | 2.44E-04 | -4.67E-07 | -2.89E-09 | 5.04E-11 | -2.29E-13 |
| Object side 72 | -9.045 | 0 | 6.46E-04 | -1.74E-06 | 9.78E-08 | -1.40E-09 | 5.09E-12 |
In this embodiment, the air gap G12 between the first lens 3 and the second lens 4 is 1.48mm；Second lens 4
The air gap G23 between the third lens 5 is 0.14mm；The air gap G34 between the third lens 5 and the 4th lens 6 is
0.15mm；The air gap G45 between 4th lens 6 and the 5th lens 7 is 0.15mm；First lens 3 are to the 5th lens 7 in light
All the air gap summation Gaa on axis I are 1.92mm；Distance of the image side surface 31 of the 2 to the first lens of diaphragm 3 on optical axis I
EPP is 20mm；The system focal length f of optical eyepiece camera lens is 20.11mm；First lens 3 to the third lens 5 combined focal length f13
For 47.47mm；The combined focal length f45 of 4th lens 6 and the 5th lens 7 is 40.11mm.
By simple computation it is found that EPP/f=0.99, T1/Gaa=2.51, T1/T2=4.83, T2/G12=0.67,
T1/T4=0.60, T4/T5=2.85, f1/f=2.23, f2/f=-2.76, f3/f=2.77, f4/f=1.03, f5/f=-
1.36, f13/f=2.36, f13/f45=1.18.The optical eyepiece camera lens of the embodiment meets above-mentioned all conditions and limits
Formula.
In the present embodiment, the distance EPP of the image side surfaces 31 of the 2 to the first lens of diaphragm 3 on optical axis I is 20mm, to have
Effect promotes experience sense；The length of optical eyepiece camera lens is 56.90mm, is less than the 65mm of existing optical eyepiece camera lens, compared to existing
Some optical eyepiece camera lenses, optical eyepiece camera lens of the invention are more thinned, the economic benefit more to accord with the demands of the market, and eyeglass
Material is plastics, can significantly reduce product weight, and eyeglass gross mass is less than 16g.It is suitable for display resolution
0.7 inch of OLED display screen of FullHD (1920*1080), compared with traditional micro display screen, the picture of the OLED display screen
Elemental size is much smaller, can effectively reduce the phenomenon that generating particle after being amplified by optical eyepiece camera lens, improve user experience.
Simultaneously according to Figure 14 to Figure 16 it is found that the optical eyepiece camera lens has the energy for preferably eliminating spherical aberration and chromatic aberation
Power can provide preferable image quality, show good optical property.
Embodiment five：
As shown in figure 17, each lens arrangement of the present embodiment and embodiment one are essentially identical, the difference is that, the reality
Optical parameter and the asphericity coefficient for applying each lens of example are different from embodiment one, the optical parameter of each lens of the embodiment and
Asphericity coefficient is respectively as shown in table nine and table ten
Each optics of lens supplemental characteristic of table nine, the 5th embodiment
The aspherical parameter of table ten, the 5th embodiment
In this embodiment, the air gap G12 between the first lens 3 and the second lens 4 is 0.15mm；Second lens 4
The air gap G23 between the third lens 5 is 0.15mm；The air gap G34 between the third lens 5 and the 4th lens 6 is
0.15mm；The air gap G45 between 4th lens 6 and the 5th lens 7 is 0.15mm；First lens 3 are to the 5th lens 7 in light
All the air gap summation Gaa on axis I are 0.60mm；Distance of the image side surface 31 of the 2 to the first lens of diaphragm 3 on optical axis I
EPP is 20mm；The system focal length f of optical eyepiece camera lens is 20.08mm；First lens 3 to the third lens 5 combined focal length f13
For 55.27mm；The combined focal length f45 of 4th lens 6 and the 5th lens 7 is 35.44mm.
By simple computation it is found that EPP/f=1.00, T1/Gaa=13.38, T1/T2=8.07, T2/G12=6.72,
T1/T4=0.95, T4/T5=2.58, f1/f=1.84, f2/f=-2.89, f3/f=5.84, f4/f=1.02, f5/f=-
1.50, f13/f=2.75, f13/f45=1.56.The optical eyepiece camera lens of the embodiment meets above-mentioned all conditions and limits
Formula.
In the present embodiment, the distance EPP of the image side surfaces 31 of the 2 to the first lens of diaphragm 3 on optical axis I is 20mm, to have
Effect promotes experience sense；The length of optical eyepiece camera lens is 54.81mm, is less than the 65mm of existing optical eyepiece camera lens, compared to existing
Some optical eyepiece camera lenses, optical eyepiece camera lens of the invention are more thinned, the economic benefit more to accord with the demands of the market, and eyeglass
Material is plastics, can significantly reduce product weight, and eyeglass gross mass is less than 16g.It is suitable for display resolution
0.7 inch of OLED display screen of FullHD (1920*1080), compared with traditional micro display screen, the picture of the OLED display screen
Elemental size is much smaller, can effectively reduce the phenomenon that generating particle after being amplified by optical eyepiece camera lens, improve user experience.
Simultaneously according to Figure 18 to Figure 20 it is found that the optical eyepiece camera lens has the energy for preferably eliminating spherical aberration and chromatic aberation
Power can provide preferable image quality, show good optical property.
In summary, the head-mounted display apparatus Yu its optical eyepiece camera lens of above-mentioned multiple embodiments of the invention uses
The lens of plastic material are selected and are arranged by the positive negative lens to each lens, and carry out selection and phase to its optical parameter
Mutually collocation makes it possess good optical property, while ensureing that image quality is excellent, and with slim light and handy, low cost
Characteristic improves user experience.
Although specifically showing and describing the present invention in conjunction with preferred embodiment, those skilled in the art should be bright
In vain, it is not departing from the spirit and scope of the present invention defined by the appended claims, it in the form and details can be right
The present invention makes a variety of changes, and is protection scope of the present invention.
Claims (3)
1. a kind of optical eyepiece camera lens, it is characterised in that：From image side to object side along optical axis sequentially include the first lens, second thoroughly
Mirror, the third lens, the 4th lens and the 5th lens, first lens, the second lens, the third lens, the 4th lens and the 5th
Lens all have refractive index, and respectively include one towards image side and the image side surface for making imaging light pass through and one towards object side and make
Be imaged light by object side, first lens, the second lens, the third lens, the 4th lens and the 5th lens meet with
Lower requirement：
Nd1 >=1.54, Nd2 >=1.59, Nd3 >=1.54, Nd4 >=1.54, Nd5 >=1.59；
Vd1<56.2 Vd2<30, Vd3<56.2 Vd4<56.2 Vd5<30；
1.20≤f1/f<2.35；
-2.90<f2/f≤-1.24；
1.40<f3/f<5.85；
1.00<f4/f<2.20；
-39.50<f5/f<-1.15；
1.35<f13/f≤2.75；
0.15<f13/f45≤1.56；
0.95≤EPP/f≤1.25；
Wherein, Nd1, Nd2, Nd3, Nd4, Nd5 indicate the first lens, the second lens, the third lens, the 4th lens and the 5th respectively
For lens in the refractive index of d lines, Vd1, Vd2, Vd3, Vd4, Vd5 indicate the first lens, the second lens, the third lens, the 4th respectively
Lens and the 5th lens d lines abbe number, f1, f2, f3, f4, f5 be respectively the first lens, the second lens, the third lens,
The focal length of 4th lens, the 5th lens, f are system focal length, and f13 is the group focus of the first lens, the second lens and the third lens
Away from the combined focal length that, f45 is the 4th lens and the 5th lens, EPP be the first lens image side surface to emergent pupil face on optical axis away from
From；
Thickness of first lens on optical axis be T1, the air gap of first lens to the 5th lens on optical axis it
With for Gaa, and also meet relational expression：2.50<T1/Gaa<17.80.
2. optical eyepiece camera lens according to claim 1, it is characterised in that：First lens, the third lens and the 4th
Lens are positive lens, and second lens and the 5th lens are negative lens.
3. optical eyepiece camera lens according to claim 1, it is characterised in that：Thickness of first lens on optical axis is
T1, the sum of the air gap of first lens to the 5th lens on optical axis is Gaa, and also meets relational expression：2.50<T1/
Gaa<17.80。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810170858.0A CN108375829B (en) | 2016-04-29 | 2016-04-29 | Optical eyepiece lens with excellent imaging quality and head-mounted display device |
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| CN201610279319.1A CN105739085B (en) | 2016-04-29 | 2016-04-29 | A kind of optical eyepiece camera lens and wear display equipment |
| CN201810170858.0A CN108375829B (en) | 2016-04-29 | 2016-04-29 | Optical eyepiece lens with excellent imaging quality and head-mounted display device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610279319.1A Division CN105739085B (en) | 2016-04-29 | 2016-04-29 | A kind of optical eyepiece camera lens and wear display equipment |
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|---|---|
| CN108375829A true CN108375829A (en) | 2018-08-07 |
| CN108375829B CN108375829B (en) | 2020-11-13 |
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| CN201810170857.6A Withdrawn CN108333763A (en) | 2016-04-29 | 2016-04-29 | Display equipment is worn using optical eyepiece camera lens |
| CN201810170859.5A Withdrawn CN108333743A (en) | 2016-04-29 | 2016-04-29 | The optical eyepiece camera lens of user experience can be improved and wear display equipment |
| CN201810170858.0A Active CN108375829B (en) | 2016-04-29 | 2016-04-29 | Optical eyepiece lens with excellent imaging quality and head-mounted display device |
| CN201610279319.1A Active CN105739085B (en) | 2016-04-29 | 2016-04-29 | A kind of optical eyepiece camera lens and wear display equipment |
| CN201810170907.0A Active CN108333764B (en) | 2016-04-29 | 2016-04-29 | Head-mounted display device with excellent imaging quality and optical eyepiece lens |
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| CN201810170857.6A Withdrawn CN108333763A (en) | 2016-04-29 | 2016-04-29 | Display equipment is worn using optical eyepiece camera lens |
| CN201810170859.5A Withdrawn CN108333743A (en) | 2016-04-29 | 2016-04-29 | The optical eyepiece camera lens of user experience can be improved and wear display equipment |
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| CN201610279319.1A Active CN105739085B (en) | 2016-04-29 | 2016-04-29 | A kind of optical eyepiece camera lens and wear display equipment |
| CN201810170907.0A Active CN108333764B (en) | 2016-04-29 | 2016-04-29 | Head-mounted display device with excellent imaging quality and optical eyepiece lens |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021016810A1 (en) * | 2019-07-29 | 2021-02-04 | 深圳纳德光学有限公司 | Eyepiece optical system and head-mounted display |
| CN112630954A (en) * | 2020-12-30 | 2021-04-09 | 厦门力鼎光电股份有限公司 | Eyepiece optical system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106019570B (en) * | 2016-07-14 | 2018-12-04 | 浙江舜宇光学有限公司 | Eyepiece |
| CN107783294A (en) * | 2016-08-31 | 2018-03-09 | 深圳超多维科技有限公司 | A kind of VR display devices and VR display devices |
| CN108064352A (en) * | 2016-09-14 | 2018-05-22 | 深圳市柔宇科技有限公司 | Optical system and the head-wearing display device using the optical system |
| CN106970464B (en) * | 2017-01-11 | 2019-06-21 | 玉晶光电(厦门)有限公司 | Eyepiece optical system |
| WO2019079996A1 (en) * | 2017-10-25 | 2019-05-02 | 深圳市柔宇科技有限公司 | Eyepiece and head-mounted electronic device |
| CN109375364A (en) * | 2018-12-26 | 2019-02-22 | 杭州有人光电技术有限公司 | A kind of 2K eyepiece optical system of virtual reality device |
| CN113917659B (en) * | 2019-09-25 | 2024-01-30 | 浙江舜宇光学有限公司 | Optical imaging lens |
| CN111736303B (en) * | 2020-07-13 | 2022-04-12 | 上海御微半导体技术有限公司 | Cylindrical mirror and automatic optical detection equipment |
| CN111736317B (en) * | 2020-08-25 | 2020-11-10 | 诚瑞光学(常州)股份有限公司 | Image pickup optical lens |
| CN112612116A (en) * | 2020-12-30 | 2021-04-06 | 厦门力鼎光电股份有限公司 | Optical imaging lens |
| CN112857754B (en) * | 2021-02-24 | 2023-06-30 | Oppo广东移动通信有限公司 | Near-eye display detection lens and near-eye display device |
| WO2022213381A1 (en) * | 2021-04-09 | 2022-10-13 | 深圳市大疆创新科技有限公司 | Optical system and video glasses |
| CN113433705A (en) * | 2021-08-26 | 2021-09-24 | 沂普光电(天津)有限公司 | VR optical lens module |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108333764A (en) | 2018-07-27 |
| CN108333743A (en) | 2018-07-27 |
| CN105739085A (en) | 2016-07-06 |
| CN108333764B (en) | 2020-10-13 |
| CN108375829B (en) | 2020-11-13 |
| CN105739085B (en) | 2018-06-15 |
| CN108333763A (en) | 2018-07-27 |
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