Head-mounted display apparatus use, the optical lens system that user experience can be improved
Technical field
Used the present invention relates to head-mounted display apparatus, can improve the optical lens system of user experience, and especially with should
Head-mounted display apparatus with six chip lens is related to its optical lens system.
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 employed more and more widely, to it
Image quality and usage comfort (field angle, exit pupil diameter and distance of exit pupil are bigger, and volume is smaller, and weight is more light, use
Comfort level is higher) requirement is also higher and higher, and the height of the quality of image quality and usage comfort depends primarily upon optics
The design of eyepiece system.
Publication:CN104570323A proposes that one kind wears eyepiece system and wears display device, is saturating using 4 chips
The eyepiece system of mirror, although small volume, lighter in weight, its distortion is larger, and emergent pupil is smaller, it is impossible to meets that consumer increasingly carries
High demand;The optical design method research of the virtual Helmet Mounted Displays of 3D based on ZEMAX, infrared and laser engineering, 2008,
37:279-282 proposes a kind of optical system shown for the helmet, it uses six-element lens to be composed, although with preferable
Image quality, but its system overall length is too long, and exit pupil diameter is not big enough, and effective distance of exit pupil is shorter;Publication:
The eyepiece that CN101609208A is proposed, and be composed using six-element lens, although having preferable image quality, it goes out
Pupil diameter is smaller, and distance of exit pupil is shorter, reduces user's usage comfort, and difficulty of processing is big, and substrate is thicker.
In addition, for eyepiece system, in the case where dimension of object determines, focal length is smaller, and field angle is bigger, system
Enlargement ratio it is bigger, design difficulty is consequently increased.Although helmet system is many on the market, the visual field of most of product
Angle, exit pupil diameter and distance of exit pupil are smaller, reduce user's usage comfort.
The content of the invention
Present invention aims at a kind of lighter in weight is provided to solve the above problems, compact-sized, field angle, emergent pupil are straight
Footpath and distance of exit pupil are larger, improve user experience, image quality is excellent, high resolution, cost low optical lens system and head
Wear formula display device.
For this reason, the invention discloses a kind of optical lens system, sequentially include one from light emission side to incident side along an optical axis
First lens, one second lens, one the 3rd lens, one the 4th lens, one the 5th lens and one the 6th lens, each lens all have
There is a refractive index, and towards light emission side and make first surface that light passes through with one and one towards incident side and make what light passed through
Second surface, wherein:
First lens are a positive power lens, and the first surface of first lens is convex surface part;
Second lens are a positive power lens, which is convex surface part;
3rd lens are a positive power lens, and the first surface of the 3rd lens is convex surface part, and second surface is convex
Face;
4th lens are a negative-power lenses, and the first surface of the 4th lens is concave part, its second surface is
Concave part;
5th lens are a positive power lens, and the first surface of the 5th lens is convex surface part;
6th lens are a negative-power lenses;
3rd lens form a compound lens with the 4th lens;
Wherein, the focal length of first lens is f1, and the focal length of second lens is f2, and the focal length of the compound lens is f34,
The focal length of 5th lens is f5, and the focal length of the 6th lens is f6, and the system focal length of the optical lens system is fs, and is met
Relationship below:
2.3<f1/fs<5.5
1.8<f2/fs<2.8
-4<f34/fs<-1.4
0.5<f5/fs<1.2
-2<f6/fs<-0.8。
Further, the radius of curvature of the second surface of the 3rd lens and the curvature half of the first surface of the 4th lens
Footpath is identical.
Further, the first surface of the second surface and the 4th lens of the 3rd lens is mutually glued.
Further, the 5th lens, the material of the 6th lens are optics plastic cement.
Further, the 5th lens, the first surface of the 6th lens and second surface are aspherical.
Further, the distance of exit pupil of the optical lens system is lep, and meets relational expression:0.9≤lep/fs≤
1.3。
Further, first lens to the air gap summation between the 6th lens on optical axis is AGa, and also full
Sufficient following condition formulae:7≤lep/AGa≤19.
The present invention also provides a kind of head-mounted display apparatus, including:
One casing;And
One display module, is installed in the casing, including:
At least one optical lens system as described above,
An at least display screen, the second surface positioned at the 6th lens is towards on the optical axis of incident side.
Further, the observation station and the first table of first lens for human eye observation of the optical lens system
Distance of the face on optical axis is more than or equal to 21mm.
The advantageous effects of the present invention:
The head-mounted display apparatus of the present invention and its optical lens system, the concave-convex curved surface by controlling each lens arrange,
And be aided with other optical relation formulas control relevant parameter and arrange in pairs or groups and use glass and plastic lens, lighter in weight is made it have, is tied
Structure is compact, and field angle, exit pupil diameter and distance of exit pupil are larger, improves user experience, image quality is excellent, high resolution, cost
Low characteristic.
Brief 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 curvature of field of the optical lens system of the first embodiment with normalization visual field change schematic diagram (explanation:xt’
For meridianal curvature of field, xs ' is Sagittal field curvature);
Fig. 3 is the distortion of the optical lens system of the first embodiment with normalization visual field change schematic diagram;
Fig. 4 is the chromatic longitudiinal aberration of the optical lens system of the first embodiment with normalization visual field change schematic diagram;
Fig. 5 is that the cross-section structure of the second embodiment of the present invention is intended to;
Fig. 6 is the curvature of field of the optical lens system of the second embodiment with normalization visual field change schematic diagram (explanation:xt’
For meridianal curvature of field, xs ' is Sagittal field curvature);
Fig. 7 is the distortion of the optical lens system of the second embodiment with normalization visual field change schematic diagram;
Fig. 8 is the chromatic longitudiinal aberration of the optical lens system of the second embodiment with normalization visual field change schematic diagram;
Fig. 9 is that the cross-section structure of the third embodiment of the present invention is intended to;
Figure 10 is the curvature of field of the optical lens system of the 3rd embodiment with normalization visual field change schematic diagram (explanation:xt’
For meridianal curvature of field, xs ' is Sagittal field curvature);
Figure 11 is the distortion of the optical lens system of the 3rd embodiment with normalization visual field change schematic diagram;
Figure 12 is the chromatic longitudiinal aberration of the optical lens system of the 3rd embodiment with normalization visual field change schematic diagram;
Figure 13 is that the cross-section structure of the fourth embodiment of the present invention is intended to;
Figure 14 is the curvature of field of the optical lens system of the fourth embodiment with normalization visual field change schematic diagram (explanation:xt’
For meridianal curvature of field, xs ' is Sagittal field curvature);
Figure 15 is the distortion of the optical lens system of the fourth embodiment with normalization visual field change schematic diagram;
Figure 16 is the chromatic longitudiinal aberration of the optical lens system of the fourth embodiment with normalization visual field change schematic diagram;
Figure 17 is that the cross-section structure of the fifth embodiment of the present invention is intended to;
Figure 18 is the curvature of field of the optical lens system of the 5th embodiment with normalization visual field change schematic diagram (explanation:xt’
For meridianal curvature of field, xs ' is Sagittal field curvature);
Figure 19 is the distortion of the optical lens system of the 5th embodiment with normalization visual field change schematic diagram;
Figure 20 is the chromatic longitudiinal aberration of the optical lens system of the 5th embodiment with normalization visual field change schematic diagram;
Figure 21 is that the cross-section structure of the sixth embodiment of the present invention is intended to;
Figure 22 is the curvature of field of the optical lens system of the sixth embodiment with normalization visual field change schematic diagram (explanation:xt’
For meridianal curvature of field, xs ' is Sagittal field curvature);
Figure 23 is the distortion of the optical lens system of the sixth embodiment with normalization visual field change schematic diagram;
Figure 24 is the chromatic longitudiinal aberration of the optical lens system of the sixth embodiment with normalization visual field change schematic diagram;
Figure 25 is that the cross-section structure of the seventh embodiment of the present invention is intended to;
Figure 26 is the curvature of field of the optical lens system of the 7th embodiment with normalization visual field change schematic diagram (explanation:xt’
For meridianal curvature of field, xs ' is Sagittal field curvature);
Figure 27 is the distortion of the optical lens system of the 7th embodiment with normalization visual field change schematic diagram;
Figure 28 is the chromatic longitudiinal aberration of the optical lens system of the 7th embodiment with normalization visual field change schematic diagram.
Embodiment
To further illustrate each embodiment, the present invention is provided with attached drawing.These attached drawings are that the invention discloses one of content
Point, it can coordinate the associated description of specification to explain the operation principles of embodiment mainly to illustrate embodiment.Coordinate 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 element numbers are conventionally used to indicate similar component.
" lens have positive light coke (or negative power) " described in this specification, refers to the lens with first-order theory
The refractive index on optical axis that theoretical calculation comes out is just (or being negative).The decision method of the concave, convex face shape of lens is as follows:Lens
The concave, convex of face type shape be with parallel through the intersection point of the light in the region (or light extension line) and optical axis in light emission side A1 or
Incident side A2 is determined (light focus decision procedure).For example, after light is by the region, light can be towards light emission side A1
Focus on, with the Focus Club of optical axis I position in light emission side A1, then the region is convex surface part.Conversely, after if light is by certain region,
Light can dissipate, the focus of its extension line and optical axis I is in incident side A2, then the region is concave part.In addition, the face shape of lens is sentenced
It is disconnected according to the judgment mode of those of ordinary skill in the field with R values (radius of curvature of optical axis also to be referred to, be often referred to optical software
In lens data storehouse (lens data) on R values) positive negative judgement is concavo-convex.With towards for the first surface of light emission side A1, when
R values are timing, are determined as convex surface part, when R values is bear, are determined as concave part;And to come towards the second surface of incident side A2
Say, when R values are timing, be determined as concave part, when R values for it is negative when, be determined as convex surface part, the bumps and light that the method determines
Focus decision procedure is identical.
For the ease of representing the signified parameter of the present invention, defined in this specification and attached drawing:
The radius of curvature of the first surface S11 of first lens L1 is R1, the song of the second surface S12 of first lens L1
Rate radius is R2, and the thickness of the first surface S11 to second surface S12 of first lens L1 on optical axis is D1, this is second saturating
The radius of curvature of the first surface S21 of mirror L2 is R3, and the radius of curvature of the second surface S22 of second lens L2 is R4, this
Thickness of the first surface S21 of two lens L2 to second surface S22 on optical axis is D2, the first surface of the 3rd lens L3
The radius of curvature of S31 is R5, and the radius of curvature of the second surface S32 of the 3rd lens L3 is R6, the first of the 3rd lens L3
Thickness of the surface S31 to second surface S32 on optical axis is D3, and the radius of curvature of the first surface S41 of the 4th lens L4 is
The radius of curvature of R7, the second surface S42 of the 4th lens L4 are R8, the first surface S41 of the 4th lens L4 to the second table
Thickness of the face S42 on optical axis is D4, and the radius of curvature of the first surface S51 of the 5th lens L5 is R9, the 5th lens L5
The radius of curvature of second surface S52 be R10, the first surface S51 to second surface S52 of the 5th lens L5 is on optical axis
Thickness is D5, and the radius of curvature of the first surface S61 of the 6th lens L6 is R11, the second surface S62's of the 6th lens L6
Radius of curvature is R12, and the thickness of the first surface S61 to second surface S62 of the 6th lens L6 on optical axis is D6;This first
Distances of the first surface S21 of the second surface S12 of lens L1 and second lens L2 on optical axis I, i.e. the first lens L1 with
The air gap between second lens L2 is d12;The first table of the second surface S22 and the 3rd lens L3 of second lens L2
Distances of the face S31 on optical axis I, i.e. the air gap between the second lens L2 and the 3rd lens L3 are d23;3rd lens L3
Second surface S32 and the 4th lens L4 distances of the first surface S41 on optical axis I, i.e. the 3rd lens L3 and the 4th is saturating
The air gap between mirror L4 is d34;The first surface S51 of the second surface S42 and the 5th lens L5 of 4th lens L4
Distance on optical axis I, i.e. the air gap between the 4th lens L4 and the 5th lens L5 are d45;The of 5th lens L5
Distances of the first surface S61 of two surface S52 and the 6th lens L6 on optical axis I, i.e. the 5th lens L5 and the 6th lens L6
Between the air gap be d56;The focal length of first lens L1 is f1;The focal length of second lens L2 is f2;3rd lens
The focal length for the compound lens L34 that L3 and the 4th lens L4 is formed is f34;The focal length of 5th lens L5 is f5;6th
The focal length of lens L6 is f6;The system focal length of the optical lens system is fs;The first lens L1 between the 6th lens L6
All the air gap summations on optical axis I are AGa, distance of exit pupil (the distance of exit of the optical lens system
Pupil, from the first surface S11 of the first lens L1 of optical lens system and optical axes crosspoint to exit pupil plane and optical axes crosspoint
Distance) it is lep.
The head-mounted display apparatus of the present invention, including:One casing;And a display module, it is installed in the casing, the display
Module includes:An at least optical lens system and at least a display screen, the display location is in the second surface court of the 6th lens
To on the optical axis of incident side.
The optical lens system of the present invention sequentially includes one first lens, one second from light emission side to incident side along an optical axis
Lens, one the 3rd lens, one the 4th lens, one the 5th lens and one the 6th lens, each lens all have refractive index, and have
One towards light emission side and makes first surface that light passes through and one towards incident side and the second surface that passes through light, wherein:
First lens are a positive power lens, and the first surface of first lens is convex surface part;
Second lens are a positive power lens, which is convex surface part;
3rd lens are a positive power lens, and the first surface of the 3rd lens is convex surface part, and second surface is convex
Face;
4th lens are a negative-power lenses, and the first surface of the 4th lens is concave part, its second surface is
Concave part;
5th lens are a positive power lens, and the first surface of the 5th lens is convex surface part;
6th lens are a negative-power lenses;
3rd lens form a compound lens with the 4th lens;
Wherein, the focal length of first lens is f1, and the focal length of second lens is f2, and the focal length of the compound lens is f34,
The focal length of 5th lens is f5, and the focal length of the 6th lens is f6, and the system focal length of the optical lens system is fs, and is met
Relationship below:
2.3<f1/fs<5.5
1.8<f2/fs<2.8
-4<f34/fs<-1.4
0.5<f5/fs<1.2
-2<f6/fs<-0.8。
It is wherein preferable, in order to realize more preferable optical effect and make system length shorter, the second of the 3rd lens
The radius of curvature on surface is identical with the radius of curvature of the first surface of the 4th lens.Also, the second surface of the 3rd lens with
The first surface of 4th lens is mutually glued.
Further, in order to make lens system more frivolous, cost is lower and has more preferable optical property, and the 5th is saturating
Mirror, the 6th lens are that optics plastic cement material is made, meanwhile, it is non-spherical lens, its aspherical expression formula is
Wherein, Y is the distance of the point in aspheric curve and optical axis I;Z is aspherical depth (apart from light on aspherical
Axis I is the point of Y, the section with 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
Emergent pupil (exit pupil) face position of the optical lens system is arranged on, which is arranged on the 6th lens and display screen
Between optical axis on.
Further, in order to make the optical lens system more slim light and handy, field angle, exit pupil diameter and distance of exit pupil compared with
Greatly, while also there is more preferable optical property, then the air gap configuration between the distance of exit pupil of lens, focal length and lens is just aobvious
Must be important, herein propose some qualifications:
0.9≤lep/fs≤1.3,
7≤lep/AGa≤19。
The optical lens system of the present invention only has foregoing six lens with refractive index altogether, by designing each lens
Detail characteristic, and it can be made to possess good optical property, while ensureing that image quality is excellent, there is lighter in weight, tie
Structure is compact, and field angle, exit pupil diameter and distance of exit pupil are larger, improves user experience, the low characteristic of cost.
In conjunction with the drawings and specific embodiments, the present invention is further described.
Embodiment one:
As shown in Figure 1, the optical lens system of the present embodiment, is sequentially wrapped from light emission side A1 to incident side A2 along an optical axis I
Include:One diaphragm 2, one first lens L1, one second lens L2, one the 3rd lens L3, one the 4th lens L4, one the 5th lens L5 and
One the 6th lens L6, each lens all have a refractive index, and with one towards light emission side A1 and the first surface that passes through light
And one towards incident side A2 and the second surface that passes through light.
The diaphragm (aperture stop) 2 is an equivalent diaphragm, and the entity of the component can be not provided with practical application,
The diaphragm 2 is provided in the first lens L1 towards on the optical axis I of light emission side A1, and positioned at the emergent pupil of the optical lens system
(exit pupil) face position.The protective glass 3 is provided in the 6th lens L6 towards on the optical axis I of incident side A2, and leans on
Nearly display screen 1, is usually the focal length for not influencing optical lens system of the present invention made by planar optics material.
In the present embodiment, the first lens L1, the second lens L2, the 3rd lens L3 and the 4th lens L4 be spherical lens and
It is made of glass material, certainly, in other embodiments, other materials such as plastic cement can also be used;5th lens L5 and
Six lens L6 are made of optics plastic cement so that system weight is lighter, and cost is low, certainly, in other embodiments, can also adopt
With other materials such as glass.
First lens L1 is a positive power lens, and the first surface of first lens L1 is that S11 is convex surface part, it second
Surface S12 is convex surface part.
Second lens L2 is a positive power lens, and the first surface S21 of second lens L2 is convex surface part, its second table
Face S22 is concave part.
3rd lens L3 is a positive power lens, and the first surface S31 of the 3rd lens L3 is convex surface part, its second table
Face S32 is convex surface part.
4th lens L4 is a negative-power lenses, and the first surface S41 of the 4th lens L4 is concave part, its second table
Face S42 is concave part.
5th lens L5 is a positive power lens, and the first surface S51 of the 5th lens L5 is convex surface part, its second table
Face S52 is convex surface part, and first surface S51 and second surface S52 are aspherical, its asphericity coefficient is as shown in Table 2.
6th lens L6 is a negative-power lenses, and the first surface S61 of the 6th lens L6 is concave part, its second table
Face S62 is concave part, and first surface S61 and second surface S62 are aspherical, its asphericity coefficient is as shown in Table 2.
3rd lens L3 and the 4th lens L4 forms a compound lens L34.
Wherein, the of the radius of curvature R 6 of the second surface S32 of the 3rd lens L3 of the embodiment and the 4th lens L4
The radius of curvature R 7 of one surface S41 is identical.Also, the 3rd lens L3 and the 4th lens L4 is mutually glued integral.
In this embodiment, each optics of lens parameter from the first lens L1 to the 6th lens L6 is as shown in Table 1
Each optics of lens supplemental characteristic of table one, first embodiment
The aspherical parameter of table two, first embodiment
In this embodiment, the air gap d12 between the first lens L1 and the second lens L2 is 0.100mm, and second is saturating
The air gap d23 between mirror L2 and the 3rd lens L3 is 0.100mm, between the air between the 3rd lens L3 and the 4th lens L4
Gap d34 is 0mm, and the air gap d45 between the 4th lens L4 and the 5th lens L5 is 2.080mm, the 5th lens L5 and the 6th
The air gap d56 between lens L6 is 0.120mm, thus calculate the first lens L1 between the 6th lens L6 in optical axis I
On all the air gap summation AGa=d12+d23+d34+d45+d56=2.4mm, the focal length f1 of first lens L1 is
The focal length f2 of 55.400mm, second lens L2 are 44.000mm, and the focal length f34 of compound lens L34 is -39.195mm, this
The focal length f5 of five lens L5 is 17.347mm, and the focal length f6 of the 6th lens L6 is -34.120mm, which is
The focal length fs that unites is 20.726mm, and the distance of exit pupil Lep of the optical lens system is 24.000mm.
Understood by simple computation:F1/fs=2.674, f2/fs=2.125, f34/fs=-1.891, f5/fs=
0.837, f6/fs=-1.646, Lep/AGa=10.000, Lep/fs=1.158.The optical lens system of the embodiment accords with
Close all conditions limitation type stated.
According to above-mentioned optical lens system, the head-mounted display apparatus of the embodiment, including:One casing and it is installed on this
A display module in casing, the display module include:At least one above-mentioned optical lens system and an at least display screen 1, this is aobvious
Display screen 1 is arranged at the incident side A2 of the optical lens system, on the optical axis I of the incident side A2 of protective glass 3.The present embodiment
In, display screen 1 selects 0.7 inch of micro display screen.
In the present embodiment, field angle reaches 48 °, and easy to observe, exit pupil diameter reaches 9.000mm, can adjust interpupillary distance easily,
Distance of exit pupil (namely the observation station and the first surface S11 of the first lens L1 for human eye observation of optical lens system
Distance on optical axis I) reach 24.000mm, nearly hyperope can wear glasses viewing, from improving user experience.Root at the same time
Understand that the optical lens system corrects the aberrations such as the curvature of field, astigmatism, ratio chromatism, and image quality is preferable according to Fig. 2 to Fig. 4, distortion
Less than 2.5%, within human eye tolerance interval, showing the optical lens system has higher optical property, can provide
Preferable image quality.
Embodiment two:
As shown in figure 5, each lens arrangement and embodiment one of the present embodiment are essentially identical, difference is:The reality
The second surface S22 for applying the second lens L2 of example is convex surface, and the second surface S62 of the 6th lens L6 is convex surface, in addition, the implementation
The optical parameter and asphericity coefficient of each lens of example are slightly different with embodiment one, the optical parameter of each lens of the embodiment
With asphericity coefficient 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
In this embodiment, the air gap d12 between the first lens L1 and the second lens L2 is 0.100mm, and second is saturating
The air gap d23 between mirror L2 and the 3rd lens L3 is 0.100mm, between the air between the 3rd lens L3 and the 4th lens L4
Gap d34 is 0mm, and the air gap d45 between the 4th lens L4 and the 5th lens L5 is 1.890mm, the 5th lens L5 and the 6th
The air gap d56 between lens L6 is 0.120mm, thus calculate the first lens L1 between the 6th lens L6 in optical axis I
On all the air gap summation AGa=d12+d23+d34+d45+d56=2.21mm, the focal length f1 of first lens L1 is
The focal length f2 of 52.385mm, second lens L2 are 44.907mm, and the focal length f34 of compound lens L34 is -44.507mm, this
The focal length f5 of five lens L5 is 16.779mm, and the focal length f6 of the 6th lens L6 is -34.733mm, which is
The focal length fs that unites is 19.600mm, and the distance of exit pupil Lep of the optical lens system is 23.000mm.
Understood by simple computation:F1/fs=2.673, f2/fs=2.291, f34/fs=-2.271, f5/fs=
0.856, f6/fs=-1.772, Lep/AGa=10.400, Lep/fs=1.173.The optical lens system of the embodiment accords with
Close all conditions limitation type stated.
In the present embodiment, field angle reaches 50 °, and easy to observe, exit pupil diameter reaches 8.500mm, can adjust interpupillary distance easily,
Distance of exit pupil reaches 23.000mm, and nearly hyperope can wear glasses viewing, from improving user experience, while the 5th lens L5
Aspherical plastic lens are used with the 6th lens L6, make that the optical lens system is more frivolous, and cost is lower.Suitable for 0.7 English
Very little micro display screen.
At the same time according to Fig. 6 to Fig. 8, which has preferably the correction curvature of field, astigmatism, ratio chromatism, etc.
The ability of aberration, showing the optical lens system has higher optical property, can provide preferable image quality.
Embodiment three:
As shown in figure 9, each lens arrangement and embodiment one of the present embodiment are essentially identical, difference is:The reality
The second surface S22 for applying the second lens L2 of example is convex surface, and the second surface S62 of the 6th lens L6 is convex surface, in addition, the implementation
The optical parameter and asphericity coefficient of each lens of example are slightly different with embodiment one, the optical parameter of each lens of the embodiment
With asphericity coefficient 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 |
S51 |
-20.1 |
|
3.10E-04 |
2.40E-06 |
-3.30E-08 |
|
S52 |
0.5 |
|
7.20E 04 |
1.80E 06 |
3.20E 08 |
|
S61 |
1.3 |
|
3.60E-04 |
4.50E-06 |
-1.40E-08 |
-6.50E-12 |
S62 |
192.8 |
|
-5.10E-04 |
2.00E-05 |
-1.40E-07 |
|
In this embodiment, the air gap d12 between the first lens L1 and the second lens L2 is 0.100mm, and second is saturating
The air gap d23 between mirror L2 and the 3rd lens L3 is 0.100mm, between the air between the 3rd lens L3 and the 4th lens L4
Gap d34 is 0mm, and the air gap d45 between the 4th lens L4 and the 5th lens L5 is 1.614mm, the 5th lens L5 and the 6th
The air gap d56 between lens L6 is 0.120mm, thus calculate the first lens L1 between the 6th lens L6 in optical axis I
On all the air gap summation AGa=d12+d23+d34+d45+d56=1.934mm, the focal length f1 of first lens L1 is
The focal length f2 of 56.710mm, second lens L2 are 41.434mm, and the focal length f34 of compound lens L34 is -43.636mm, this
The focal length f5 of five lens L5 is 13.787mm, and the focal length f6 of the 6th lens L6 is -28.754mm, which is
The focal length fs that unites is 18.351mm, and the distance of exit pupil Lep of the optical lens system is 21.000mm.
Understood by simple computation:F1/fs=3.090, f2/fs=2.258, f34/fs=-2.378, f5/fs=
0.751, f6/fs=-1.567, Lep/AGa=10.858, Lep/fs=1.144.The optical lens system of the embodiment accords with
Close all conditions limitation type stated.
In the present embodiment, field angle reaches 53 °, and easy to observe, exit pupil diameter reaches 8.500mm, can adjust interpupillary distance easily,
Distance of exit pupil reaches 21.000mm, and nearly hyperope can wear glasses viewing, from improving user experience, while the 5th lens L5
Aspherical plastic lens are used with the 6th lens L6, make that the optical lens system is more frivolous, and cost is lower.Suitable for 0.7 English
Very little micro display screen.
At the same time according to Figure 10 to Figure 12, which has preferably the correction curvature of field, astigmatism, ratio chromatism,
Deng the ability of aberration, showing the optical lens system has higher optical property, can provide preferable image quality.
Example IV:
As shown in figure 13, each lens arrangement of the present embodiment and embodiment one are essentially identical, and difference is:The reality
The second surface S22 for applying the second lens L2 of example is plane, and the second surface S62 of the 6th lens L6 is convex surface, in addition, the implementation
The optical parameter and asphericity coefficient of each lens of example are slightly different with embodiment one, the optical parameter of each lens of the embodiment
With asphericity coefficient 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
In this embodiment, the air gap d12 between the first lens L1 and the second lens L2 is 0.100mm, and second is saturating
The air gap d23 between mirror L2 and the 3rd lens L3 is 0.100mm, between the air between the 3rd lens L3 and the 4th lens L4
Gap d34 is 0mm, and the air gap d45 between the 4th lens L4 and the 5th lens L5 is 1.651mm, the 5th lens L5 and the 6th
The air gap d56 between lens L6 is 0.120mm, thus calculate the first lens L1 between the 6th lens L6 in optical axis I
On all the air gap summation AGa=d12+d23+d34+d45+d56=1.971mm, the focal length f1 of first lens L1 is
The focal length f2 of 55.878mm, second lens L2 are 40.761mm, and the focal length f34 of compound lens L34 is -43.250mm, this
The focal length f5 of five lens L5 is 13.392mm, and the focal length f6 of the 6th lens L6 is -27.423mm, which is
The focal length fs that unites is 18.200mm, and the distance of exit pupil Lep of the optical lens system is 21.000mm.
Understood by simple computation:F1/fs=3.070, f2/fs=2.239, f34/fs=-2.376, f5/fs=
0.736, f6/fs=-1.507, Lep/AGa=10.654, Lep/fs=1.154.The optical lens system of the embodiment accords with
Close all conditions limitation type stated.
In the present embodiment, field angle reaches 53.5 °, and easy to observe, exit pupil diameter reaches 8.500mm, can adjust pupil easily
Reach 21.000mm away from, distance of exit pupil, nearly hyperope can wear glasses viewing, and from improving user experience, while the 5th is saturating
Mirror L5 and the 6th lens L6 uses aspherical plastic lens, makes that the optical lens system is more frivolous, and cost is lower.It is suitable for
0.7 inch of micro display screen.
At the same time according to Figure 14 to Figure 16, which has preferably the correction curvature of field, astigmatism, ratio chromatism,
Deng the ability of aberration, showing the optical lens system has higher optical property, can provide preferable image quality.
Embodiment five:
As shown in figure 17, each lens arrangement of the present embodiment and embodiment one are essentially identical, and difference is:The reality
The optical parameter and asphericity coefficient for applying each lens of example are slightly different with embodiment one, the Optical Parametric of each lens of the embodiment
Number and asphericity coefficient are 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
Face |
K |
a2 |
a4 |
a6 |
a8 |
a10 |
S51 |
-0.8 |
|
2.90E-05 |
2.50E-06 |
-3.20E-08 |
|
S52 |
-0.5 |
|
3.50E-04 |
3.40E-06 |
-3.50E-08 |
|
S61 |
4.4 |
|
3.10E-04 |
3.20E-06 |
-2.10E-08 |
-6.50E-12 |
S62 |
24.8 |
|
-1.60E-04 |
2.90E-06 |
-4.50E-08 |
|
In this embodiment, the air gap d12 between the first lens L1 and the second lens L2 is 0.080mm, and second is saturating
The air gap d23 between mirror L2 and the 3rd lens L3 is 0.100mm, between the air between the 3rd lens L3 and the 4th lens L4
Gap d34 is 0mm, and the air gap d45 between the 4th lens L4 and the 5th lens L5 is 1.614mm, the 5th lens L5 and the 6th
The air gap d56 between lens L6 is 0.100mm, thus calculate the first lens L1 between the 6th lens L6 in optical axis I
On all the air gap summation AGa=d12+d23+d34+d45+d56=1.894mm, the focal length f1 of first lens L1 is
The focal length f2 of 49.788mm, second lens L2 are 41.584mm, and the focal length f34 of compound lens L34 is -32.607mm, this
The focal length f5 of five lens L5 is 16.773mm, and the focal length f6 of the 6th lens L6 is -27.426mm, which is
The focal length fs that unites is 20.719mm, and the distance of exit pupil Lep of the optical lens system is 24.000mm.
Understood by simple computation:F1/fs=2.403, f2/fs=2.007, f34/fs=-1.574, f5/fs=
0.810, f6/fs=-1.324, Lep/AGa=12.672, Lep/fs=1.158.The optical lens system of the embodiment accords with
Close all conditions limitation type stated.
In the present embodiment, field angle reaches 48 °, and easy to observe, exit pupil diameter reaches 9mm, can adjust interpupillary distance, emergent pupil easily
Distance reaches 24.000mm, and nearly hyperope can wear glasses viewing, from improving user experience, while the 5th lens L5 and
Six lens L6 use aspherical plastic lens, make that the optical lens system is more frivolous, and cost is lower.It is micro- suitable for 0.7 inch
Display screen.
At the same time according to Figure 18 to Figure 20, which has preferably the correction curvature of field, astigmatism, ratio chromatism,
Deng the ability of aberration, showing the optical lens system has higher optical property, can provide preferable image quality.
Embodiment six:
As shown in figure 21, each lens arrangement of the present embodiment and embodiment one are essentially identical, and difference is:The reality
The second surface S22 for applying the second lens L2 of example is convex surface, in addition, the optical parameter of each lens of the embodiment and aspherical system
Number is slightly different with embodiment one, and the optical parameter and asphericity coefficient of each lens of the embodiment are respectively such as table 11 and table ten
Shown in two
Each optics of lens supplemental characteristic of table 11, sixth embodiment
The aspherical parameter of table 12, sixth embodiment
In this embodiment, the air gap d12 between the first lens L1 and the second lens L2 is 0.100mm, and second is saturating
The air gap d23 between mirror L2 and the 3rd lens L3 is 0.100mm, between the air between the 3rd lens L3 and the 4th lens L4
Gap d34 is 0mm, and the air gap d45 between the 4th lens L4 and the 5th lens L5 is 1.978mm, the 5th lens L5 and the 6th
The air gap d56 between lens L6 is 0.120mm, thus calculate the first lens L1 between the 6th lens L6 in optical axis I
On all the air gap summation AGa=d12+d23+d34+d45+d56=2.298mm, the focal length f1 of first lens L1 is
The focal length f2 of 49.600mm, second lens L2 are 50.400mm, and the focal length f34 of compound lens L34 is -48.600mm, this
The focal length f5 of five lens L5 is 15.500mm, and the focal length f6 of the 6th lens L6 is -27.200mm, which is
The focal length fs that unites is 19.629mm, and the distance of exit pupil Lep of the optical lens system is 23.000mm.
Understood by simple computation:F1/fs=2.525, f2/fs=2.569, f34/fs=-2.478, f5/fs=
0.791, f6/fs=-1.387, Lep/AGa=10.009, Lep/fs=1.172.The optical lens system of the embodiment accords with
Close all conditions limitation type stated.
In the present embodiment, field angle reaches 50 °, and easy to observe, exit pupil diameter reaches 8.500mm, can adjust interpupillary distance easily,
Distance of exit pupil reaches 23.000mm, and nearly hyperope can wear glasses viewing, from improving user experience, while the 5th lens L5
Aspherical plastic lens are used with the 6th lens L6, make that the optical lens system is more frivolous, and cost is lower.Suitable for 0.7 English
Very little micro display screen.
At the same time according to Figure 22 to Figure 24, which has preferably the correction curvature of field, astigmatism, ratio chromatism,
Deng the ability of aberration, showing the optical lens system has higher optical property, can provide preferable image quality.
Embodiment seven:
As shown in figure 25, each lens arrangement of the present embodiment and embodiment one are essentially identical, and difference is:The reality
The second surface S12 for applying the first lens L1 of example is concave surface, and the second surface S22 of the second lens L2 is convex surface, in addition, the implementation
The optical parameter and asphericity coefficient of each lens of example are slightly different with embodiment one, the optical parameter of each lens of the embodiment
With asphericity coefficient respectively as shown in table 13 and table 14
Each optics of lens supplemental characteristic of table 13, the 7th embodiment
The aspherical parameter of table 14, the 7th embodiment
In this embodiment, the air gap d12 between the first lens L1 and the second lens L2 is 0.100mm, and second is saturating
The air gap d23 between mirror L2 and the 3rd lens L3 is 0.090mm, between the air between the 3rd lens L3 and the 4th lens L4
Gap d34 is 0mm, and the air gap d45 between the 4th lens L4 and the 5th lens L5 is 2.641mm, the 5th lens L5 and the 6th
The air gap d56 between lens L6 is 0.188mm, thus calculate the first lens L1 between the 6th lens L6 in optical axis I
On all the air gap summation AGa=d12+d23+d34+d45+d56=3.019mm, the focal length f1 of first lens L1 is
The focal length f2 of 117.245mm, second lens L2 are 43.644mm, and the focal length f34 of compound lens L34 is 83.946mm, this
The focal length f5 of five lens L5 is 14.449mm, and the focal length f6 of the 6th lens L6 is -19.345mm, which is
The focal length fs that unites is 22mm, and the distance of exit pupil Lep of the optical lens system is 24.000mm.
Understood by simple computation:F1/fs=5.333, f2/fs=1.985, f34/fs=-3.818, f5/fs=
0.657, f6/fs=-0.88, Lep/AGa=7.950, Lep/fs=1.091.The optical lens system of the embodiment meets
Above-mentioned all conditions limitation type.
In the present embodiment, field angle reaches 45 °, and easy to observe, exit pupil diameter reaches 9mm, can adjust interpupillary distance, emergent pupil easily
Distance reaches 24.000mm, and nearly hyperope can wear glasses viewing, from improving user experience, while the 5th lens L5 and
Six lens L6 use aspherical plastic lens, make that the optical lens system is more frivolous, and cost is lower.It is micro- suitable for 0.7 inch
Display screen.
At the same time according to Figure 26 to Figure 28, which has preferably the correction curvature of field, astigmatism, ratio chromatism,
Deng the ability of aberration, showing the optical lens system has higher optical property, can provide preferable image quality.
In summary, the head-mounted display apparatus of above-mentioned multiple embodiments of the invention passes through control with its optical lens system
The concave-convex curved surface arrangement of each lens is made, and is aided with other optical relation formulas control relevant parameter and arranges in pairs or groups saturating using glass and plastic cement
Mirror, makes it have lighter in weight, compact-sized, and field angle, exit pupil diameter and distance of exit pupil are larger, improves user experience, imaging
It is superior in quality, high resolution, the low characteristic of cost.
Although specifically showing and describing the present invention with reference to preferred embodiment, those skilled in the art should be bright
In vain, do not departing from the spirit and scope of the present invention that the appended claims are limited, in the form and details can be right
The present invention makes a variety of changes, and is protection scope of the present invention.