CN205404965U - Head mounted display - Google Patents
Head mounted display Download PDFInfo
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- CN205404965U CN205404965U CN201620214498.6U CN201620214498U CN205404965U CN 205404965 U CN205404965 U CN 205404965U CN 201620214498 U CN201620214498 U CN 201620214498U CN 205404965 U CN205404965 U CN 205404965U
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Abstract
The utility model relates to a head mounted display, including corresponding eyepiece optical system and the display screen that sets up, length and width proportion scope that display screen effective display picture corresponds do: 1: 1 16: 3, eyepiece optical system includes the one or more lens, the broadside of at least one lens is for the broadside after going on cut edge handling among the eyepiece optical system, and the biggest effective optics aperture ratio range of value that keep size minimum and lens of lens broadside after cutting edge is: 0.22 0.66. The utility model discloses the scheme is cut edge through the broadside to lens, and the length that remains its long limit is unchangeable for the whole weight loss of eyepiece optical system, and workable and assembly can guarantee that eyepiece optical system is satisfying the big angle of vision, high picture resolution, is hanging down under the condition of optical properties such as distortion, the little curvature of field, little volume simultaneously, and it is more comfortable to make the head mounted display product wear.
Description
Technical field
The utility model relates to optical technical field, more particularly, it relates to a kind of head-wearing display device.
Background technology
Along with electronic device constantly develops to ultraminiaturization, and new computer, microelectronics, photoelectric device
With communication theory and the development of technology, wearable computing is this based on " people-oriented " " people computer system "
New ant algorithms has become as possibility.Military, industry, medical treatment, educate, the field such as consumption continues to bring out should
With.In a typical wearable computing system architecture, head-mounted display apparatus is crucial part.
Head-wearing display device passes through optical technology, and by miniature image display, (such as transmission-type or reflection type liquid crystal are aobvious
Display screen, organic electroluminescence device, DMD device) video image light that sends is directed to the pupil of user,
Nearly mesh scope user realizes virtual, enlarged drawing picture, for user provide directly perceived, visual image,
Video, Word message.Eyepiece optical system is the core of head-wearing display device, it is achieved shown by miniature image
The function of virtual enlarged drawing picture is formed before human eye.
Head-wearing display device is towards volume compact, lightweight, it is simple to wear, and alleviates the directions such as load and develops.
Meanwhile, the big angle of visual field and euphorosia experience be increasingly becoming weigh the good and bad key of head-wearing display device because of
Element, the big angle of visual field determines the visual experience effect of high telepresenc, and high picture element, low distortion determine vision body
The comfort level tested.Meet these requirements, need eyepiece optical system to realize the big angle of visual field, Gao Tu as much as possible
As indexs such as resolving power, low distortion, the little curvature of field, small sizes, meet above-mentioned optical property to system simultaneously
Design and aberration optimization are the biggest challenges.
When processing eyepiece optical system, it is generally required to according to the size of screen size to eyepiece optical system
Carry out trimming processing, still ensure that in the case of meeting above-mentioned optical property, alleviate eyepiece optics system as far as possible
The weight and volume of system so that head-wearing display device product is worn more comfortable.
Utility model content
The technical problems to be solved in the utility model is, for the drawbacks described above of prior art, it is provided that a kind of
Good in optical property, volume compact, the head of the band broadside trimming eyepiece optical system that lightweight, machinability is good
Wear display device.
The utility model solves its technical problem and be the technical scheme is that
A kind of head-wearing display device of structure, including the eyepiece optical system being correspondingly arranged and display screen；Described aobvious
Display screen effectively shows that the length that picture is corresponding with width ratio scope is: 1:1-16:3, described eyepiece optics system
System at least includes one or more pieces lens；Wherein, the broadside of the most a piece of described lens was for carrying out trimming
Reservation size minimum of a value after broadside after process, and described lens broadside trimming has with the maximum of described lens
Effect optical aperture ratio range is: 0.22-0.66.
Head-wearing display device described in the utility model, wherein, the long limit of the most a piece of described lens is for entering
Trimming of going process after long limit, and the front view carrying out the described lens after the trimming of long limit be corner be circular arc
The rectangle of shape；
When described lens external diameter is 1.03-1.1 with maximum effective optical aperture ratio, the length of described lens
Reservation size minimum of a value after the trimming of limit with the maximum effectively optical aperture ratio range of described lens is: be more than
0.80。
Head-wearing display device described in the utility model, wherein, the long limit of the most a piece of described lens is for entering
Trimming of going process after long limit, and the front view carrying out the described lens after the trimming of long limit be corner be circular arc
The rectangle of shape；
When described lens external diameter is more than 1.1 with maximum effective optical aperture ratio, the long limit of described lens
Reservation size minimum of a value after trimming with the maximum effectively optical aperture ratio range of described lens is: be more than
0.9。
Head-wearing display device described in the utility model, wherein, described display screen effectively shows that picture is corresponding
Length and width ratio are 16:16, and the reservation size minimum of a value after the broadside trimming of described lens is with described
The maximum effectively optical aperture ratio range of mirror is: more than 0.66；
And/or, the reservation size minimum of a value after the long limit trimming of described lens is maximum effective with described lens
Optical aperture ratio range is: more than 0.80.
Head-wearing display device described in the utility model, wherein, described display screen effectively shows that picture is corresponding
Length and width ratio are 16:12, and the reservation size minimum of a value after the broadside trimming of described lens is with described
The maximum effectively optical aperture ratio of mirror is: more than 0.57；
And/or, the reservation size minimum of a value after the long limit trimming of described lens is maximum effective with described lens
Optical aperture ratio range is: more than 0.87.
Head-wearing display device described in the utility model, wherein, described display screen effectively shows that picture is corresponding
Length and width ratio are 16:10, and the reservation size minimum of a value after the broadside trimming of described lens is with described
The maximum effectively optical aperture ratio range of mirror is: more than 0.51；
And/or, the reservation size minimum of a value after the long limit trimming of described lens is maximum effective with described lens
Optical aperture ratio range is: more than 0.91.
Head-wearing display device described in the utility model, wherein, described display screen effectively shows that picture is corresponding
Length and width ratio are 16:9, and the reservation size minimum of a value after the broadside trimming of described lens is with described
The maximum effectively optical aperture ratio range of mirror is: more than 0.47；
And/or, the reservation size minimum of a value after the long limit trimming of described lens is maximum effective with described lens
Optical aperture ratio range is: more than 0.93.
Head-wearing display device described in the utility model, wherein, described eyepiece optical system includes two panels lens,
It is respectively as follows: the first lens and the second lens；Wherein,
The broadside of described first lens is to carry out the broadside after trimming processes；
The broadside of described second lens is to carry out the broadside after trimming processes, the length of the most described second lens
While be the long limit after carrying out trimming process.
Head-wearing display device described in the utility model, wherein, described eyepiece optical system includes three lens,
It is respectively as follows: the first lens, the second lens and the 3rd lens；Wherein,
The broadside of the first lens, the second lens and the 3rd lens is to carry out the broadside after trimming processes, simultaneously
The long limit of the first lens, the second lens and the 3rd lens is the long limit after carrying out trimming process.
Head-wearing display device described in the utility model, wherein, described eyepiece optical system includes four lens,
It is respectively as follows: the 4th lens, the 5th lens, the 6th lens and the 7th lens；Wherein,
The broadside of described 4th lens, the 5th lens, the 6th lens and the 7th lens is and carried out at trimming
Broadside after reason.
Head-wearing display device described in the utility model, wherein, described head-wearing display device be simple eye wear aobvious
Showing device, including:
One eyepiece optical system；With, a display screen corresponding with described eyepiece optical system.
Head-wearing display device described in the utility model, wherein, described head-wearing display device is that eyes are worn aobvious
Showing device, including:
One left eye eyepiece optical system；With, a left eye corresponding with described left eye eyepiece optical system shows
Display screen；
One right eye eyepiece optical system；With, a right eye corresponding with described right eye eyepiece optical system shows
Display screen.
Head-wearing display device described in the utility model, wherein, described eyepiece optical system includes:
Along coaxial the first lens, the second lens and the 3rd lens being arranged in order of optical axis direction, wherein first is saturating
Mirror near human eye side, the 3rd lens near image source side, image source light successively by the 3rd lens, the second lens,
First lens are watched by human eye；
The combination focal power of described first lens and the second lens composition be on the occasion of, and the second lens are near image source
The surface of side is convex to image source direction；
Two optical surface curvature directions of described 3rd lens are identical, all concave towards image source direction.
Head-wearing display device described in the utility model, wherein, described eyepiece optical system includes:
Including from eye-observation side to display screen side along coaxial the first set of lenses being arranged in order of optical axis direction and
Second set of lenses, and the effective focal length of described first set of lenses is negative value, described second set of lenses effective burnt
Away from on the occasion of；
Described first set of lenses is made up of two panels lens, is proximate to the 4th lens of human eye side respectively and away from people
5th lens of eye side, and described 4th lens are the positive lens of biconvex shape, described 4th lens be negative thoroughly
Mirror；Described 5th lens optical surface near human eye side concaves towards human eye side, and radius of curvature is negative value；
Described second set of lenses is made up of one or more pieces lens, wherein said second lens set at least include with
6th lens of described first set of lenses neighbour, and include the 7th lens, described 6th lens are positive lens,
Described 7th lens are between described 6th lens and display screen side.
Head-wearing display device described in the utility model, wherein, described eyepiece optical system includes: include from
Eye-observation side to display screen side along coaxial the first set of lenses being arranged in order of optical axis direction and the second set of lenses,
And the effective focal length of described first set of lenses is negative value, the effective focal length of described second set of lenses be on the occasion of；
Described first set of lenses is made up of two panels lens, is proximate to the 8th lens of human eye side respectively and away from people
9th lens of eye side, and described 8th lens are the positive lens of biconvex shape, described 9th lens be negative thoroughly
Mirror；Described second set of lenses is made up of one or more pieces lens, wherein said second lens set at least include with
Tenth lens of described first set of lenses neighbour, described tenth lens are positive lens；
Described second set of lenses also includes the 11st lens and the 12nd lens, the tenth lens, the 11st lens
It is arranged in order to miniscope side by from human eye side with the 12nd lens；
11st lens are between described tenth lens and display screen side.
The beneficial effects of the utility model are: by according to the cutting method set, the broadside to lens
Carry out trimming, or its long limit is carried out trimming simultaneously so that eyepiece optical system overall weight alleviates, and
Easily processing and assembling, can ensure that eyepiece optical system is meeting the big angle of visual field, hi-vision resolving power, low simultaneously
In the case of the optical property such as distortion, the little curvature of field, small size so that head-wearing display device is worn more comfortable.
Accompanying drawing explanation
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will knot
The utility model is described in further detail to close drawings and Examples, and the accompanying drawing in describing below is only this practicality
Novel section Example, for those of ordinary skill in the art, before not paying creative work
Put, it is also possible to obtain other accompanying drawings according to these accompanying drawings:
Fig. 1 is the broadside trimming mode schematic diagram of the head-wearing display device of the utility model preferred embodiment；
Fig. 2 is the eyepiece light after broadside trimming of the head-wearing display device of the utility model preferred embodiment
System Facad structure view；
Fig. 3 is the eyepiece light after broadside trimming of the head-wearing display device of the utility model preferred embodiment
Multiple lens solids assembling schematic diagram in system；
Fig. 4 is the eyepiece light before broadside trimming of the head-wearing display device of the utility model preferred embodiment
Learn system light path schematic diagram；
Fig. 5 is the eyepiece light after broadside trimming of the head-wearing display device of the utility model preferred embodiment
Learn system light path schematic diagram；
Fig. 6 is broadside and the trimming side simultaneously, long limit of the head-wearing display device of the utility model preferred embodiment
Formula schematic diagram one；
Fig. 7 is the trimming through broadside and long limit while of the head-wearing display device of the utility model preferred embodiment
After eyepiece optical system Facad structure view one；
Fig. 8 is the trimming through broadside and long limit while of the head-wearing display device of the utility model preferred embodiment
After eyepiece optical system stereochemical structure view one；
Fig. 9 is the eyepiece optical system light path schematic diagram shown in Fig. 7 and Fig. 8；
Figure 10 is broadside and the trimming side simultaneously, long limit of the head-wearing display device of the utility model preferred embodiment
Formula schematic diagram two；
Figure 11 is the trimming through broadside and long limit while of the head-wearing display device of the utility model preferred embodiment
After eyepiece optical system Facad structure view two；
Figure 12 is the eyepiece optics system after broadside and the trimming simultaneously of long limit of the utility model preferred embodiment
System stereochemical structure view two；
Figure 13 is the eyepiece optics system before broadside and the trimming simultaneously of long limit of the utility model preferred embodiment
System light path schematic diagram；
Figure 14 is the eyepiece optics system after broadside and the trimming simultaneously of long limit of the utility model preferred embodiment
System light path schematic diagram；
Figure 15 be the head-wearing display device of the utility model preferred embodiment lens are carried out corner cut process side
Formula schematic diagram.
Detailed description of the invention
In order to make the purpose of the utility model embodiment, technical scheme and advantage clearer, below in conjunction with
Technical scheme in the utility model embodiment carries out clear, complete description, it is clear that described enforcement
Example is section Example of the present utility model rather than whole embodiment.Based on embodiment of the present utility model,
The every other enforcement that those of ordinary skill in the art are obtained on the premise of not paying creative work
Example, broadly falls into protection domain of the present utility model.
The head-wearing display device of the band broadside trimming eyepiece optical system of the utility model preferred embodiment includes
The eyepiece optical system being correspondingly arranged and display screen；Display screen effectively shows the length and width ratio that picture is corresponding
Example scope is: 1:1-16:3；Eyepiece optical system at least includes one or more pieces lens；Wherein, at least
The broadside of a piece of lens is to carry out the broadside after trimming processes, and the reservation size after lens broadside trimming is
0.22,0.27 the maximum effectively optical aperture ratio range of little value and lens is: 0.22-0.66, including:,
0.32、0.36、0.40、0.44、0.47、0.51、0.54、0.57、0.59、0.62、0.64、0.66。
Or further, display screen effectively shows that the length that picture is corresponding with width ratio scope is: 1:1-2:1；
Eyepiece optical system at least includes one or more pieces lens；Wherein, the broadside of the most a piece of lens is for carrying out
Cross the broadside after trimming processes, and the reservation size minimum of a value after lens broadside trimming is effective with the maximum of lens
Optical aperture ratio range is: 0.44-0.66.
Empirical tests, after carrying out trimming to the broadside of lens so that it retains size minimum of a value and lens
Big effectively optical aperture ratio range is: 0.22-0.66, preferably 0.44-0.66, can not only make eyepiece
Optical system overall weight alleviates, easily processes and assemble, and can ensure that eyepiece optical system meets big visual field simultaneously
The optical properties such as angle, hi-vision resolving power, low distortion, the little curvature of field, small size so that head-wearing display device
Wear more comfortable.
Owing to eyepiece optical system is axial symmetry optical texture, when being used for observing rectangular display area, there is one
Point logical optical range is not to be used effectively, and therefore can effectively show aspect ratio according to display screen
Long limit and/or broadside to lens are cut, the light that the logical optical range that it is not used effectively is corresponding
Structure division is removed, the optical texture of remainder still can ensure to meet the big angle of visual field, hi-vision resolving power,
The optical properties such as low distortion, the little curvature of field, small size.
Fig. 1 shows the broadside trimming mode of a kind of head-wearing display device, and two of which parallel dotted lines position is i.e.
For excision line, the unbroken circle being relatively large in diameter represents lens original size, and the unbroken circle that diameter is less represents
The maximum effectively optical dimensions of lens.Wherein, A is the maximum effectively optical aperture of lens, and B is outside lens
Footpath, C is that lens fabricate surplus, and D is the reservation size after lens broadside trimming.
Fig. 2 shows the eyepiece optical system Facad structure after using the trimming mode of Fig. 1 to carry out trimming, figure
3 show the eyepiece optical system solid assembling structure after using the trimming mode of Fig. 1 to carry out trimming, it is seen that
Wherein lower edges is cut, and the arc of both sides is retained, it is simple to eyepiece optical system is at head-wearing display device
In installation fix.Fig. 4 shows the eyepiece optical system light path schematic diagram before broadside trimming, can see
Go out its light coverage and be not related to the whole surface of eyepiece optical system, but a certain rectangle region therein
Territory；Fig. 5 shows the eyepiece optical system light path schematic diagram after broadside trimming, it can be seen that through excision
Part lens, does not affect its light and passes through part, it is ensured that eyepiece optical system meets the big angle of visual field, Gao Tu
As optical properties such as resolving power, low distortion, the little curvature of field, small sizes.
In a further embodiment, the most a piece of in the eyepiece optical system of above-mentioned head-wearing display device
The long limit of mirror is to carry out the long limit after trimming processes, and the front view carrying out the lens after the trimming of long limit is four
Angle is the rectangle of arc-shaped；When lens external diameter is 1.03-1.1 with maximum effective optical aperture ratio, thoroughly
Reservation size minimum of a value after the long limit trimming of mirror with the maximum effectively optical aperture ratio range of lens is: big
In 0.80；Or, when lens external diameter is more than 1.1 with maximum effective optical aperture ratio, lens
Reservation size minimum of a value after the trimming of long limit with the maximum effectively optical aperture ratio range of lens is: be more than
0.9。
Fig. 6 shows the long limit of a kind of head-wearing display device and broadside trimming mode simultaneously, wherein two groups parallel
Dotted line position is i.e. respectively long limit and broadside excision line, and the unbroken circle being relatively large in diameter represents the original chi of lens
Very little, the unbroken circle that diameter is less represents the maximum effectively optical dimensions of lens.Wherein, A be lens
Big effectively optical aperture, B is lens external diameter, and C is that lens fabricate surplus, and D is that lens carry out broadside
Reservation size after trimming, E represent lens carry out the trimming of long limit after reservation size.
Fig. 7 and Fig. 8 respectively illustrates head-wearing display device of the present utility model by the mode of meaning shown in Fig. 6
Carry out the eyepiece optical system Facad structure after broadside and the trimming simultaneously of long limit and stereochemical structure, it can be seen that carry out
Lens after broadside and the trimming of long limit be corner be the rectangle of arc-shaped.Fig. 9 shows in Fig. 7 and Fig. 8
The index path of eyepiece optical system 1/4th, it can be seen that even if having carried out long limit and broadside trimming, its light path
100 are not affected, and still ensure that eyepiece optical system meets the big angle of visual field, hi-vision resolving power, low
The optical property such as distortion, the little curvature of field, small size.
Preferably, in above-mentioned head-wearing display device, effectively show, at display screen, the length and width that picture is corresponding
When ratio is 16:16, the reservation size minimum of a value after the broadside trimming of lens is effective optics with the maximum of lens
Aperture ratio range is: more than 0.66；And/or, the reservation size minimum of a value after the long limit trimming of lens with
The maximum effectively optical aperture ratio range of lens is: more than 0.80.
Preferably, in above-mentioned head-wearing display device, effectively show, at display screen, the length and width that picture is corresponding
When ratio is 16:15, the reservation size minimum of a value after the broadside trimming of lens is effective optics with the maximum of lens
Aperture ratio range is: more than 0.64；And/or, the reservation size minimum of a value after the long limit trimming of lens with
The maximum effectively optical aperture ratio range of lens is: more than 0.82.
Preferably, in above-mentioned head-wearing display device, effectively show, at display screen, the length and width that picture is corresponding
When ratio is 16:14, the reservation size minimum of a value after the broadside trimming of lens is effective optics with the maximum of lens
Aperture ratio range is: more than 0.62；And/or, the reservation size minimum of a value after the long limit trimming of lens with
The maximum effectively optical aperture ratio range of lens is: more than 0.84.
Preferably, in above-mentioned head-wearing display device, effectively show, at display screen, the length and width that picture is corresponding
When ratio is 16:13, the reservation size minimum of a value after the broadside trimming of lens is effective optics with the maximum of lens
Aperture ratio range is: more than 0.59；And/or, the reservation size minimum of a value after the long limit trimming of lens with
The maximum effectively optical aperture ratio range of lens is: more than 0.86.
Preferably, in above-mentioned head-wearing display device, effectively show, at display screen, the length and width that picture is corresponding
When ratio is 16:12, the reservation size minimum of a value after the broadside trimming of lens is effective optics with the maximum of lens
Aperture ratio is: more than 0.57；And/or, the reservation size minimum of a value after the long limit trimming of lens and lens
Maximum effectively optical aperture ratio range be: more than 0.87.
Preferably, in above-mentioned head-wearing display device, effectively show, at display screen, the length and width that picture is corresponding
Proportion is: during more than 16:11, and the reservation size minimum of a value after the broadside trimming of lens and lens are
Big effectively optical aperture ratio range is: more than 0.54；And/or, the reservation chi after the long limit trimming of lens
Very little minimum of a value with the maximum effectively optical aperture ratio range of lens is: more than 0.89.
Preferably, in above-mentioned head-wearing display device, effectively show, at display screen, the length and width that picture is corresponding
When ratio is 16:10, the reservation size minimum of a value after the broadside trimming of lens is effective optics with the maximum of lens
Aperture ratio range is: more than 0.51；And/or, the reservation size minimum of a value after the long limit trimming of lens with
The maximum effectively optical aperture ratio range of lens is: more than 0.91.
Preferably, in above-mentioned head-wearing display device, effectively show, at display screen, the length and width that picture is corresponding
When ratio is 16:9, the reservation size minimum of a value after the broadside trimming of lens is effective optics with the maximum of lens
Aperture ratio range is: more than 0.47；And/or, the reservation size minimum of a value after the long limit trimming of lens with
The maximum effectively optical aperture ratio range of lens is: more than 0.93.
Preferably, in above-mentioned head-wearing display device, effectively show, at display screen, the length and width that picture is corresponding
When ratio is 16:8, the reservation size minimum of a value after the broadside trimming of lens is effective optics with the maximum of lens
Aperture ratio range is: more than 0.44；And/or, the reservation size minimum of a value after the long limit trimming of lens with
The maximum effectively optical aperture ratio range of lens is: more than 0.94.
Preferably, in above-mentioned head-wearing display device, effectively show, at display screen, the length and width that picture is corresponding
When ratio is 16:7, the reservation size minimum of a value after the broadside trimming of lens is effective optics with the maximum of lens
Aperture ratio range is: more than 0.40；And/or, the reservation size minimum of a value after the long limit trimming of lens with
The maximum effectively optical aperture ratio range of lens is: more than 0.96.
Preferably, in above-mentioned head-wearing display device, effectively show, at display screen, the length and width that picture is corresponding
When ratio is 16:6, the reservation size minimum of a value after the broadside trimming of lens is effective optics with the maximum of lens
Aperture ratio range is: more than 0.36；And/or, the reservation size minimum of a value after the long limit trimming of lens with
The maximum effectively optical aperture ratio range of lens is: more than 0.98.
Preferably, in above-mentioned head-wearing display device, effectively show, at display screen, the length and width that picture is corresponding
When ratio is 16:5, the reservation size minimum of a value after the broadside trimming of lens is effective optics with the maximum of lens
Aperture ratio range is: more than 0.32；And/or, the reservation size minimum of a value after the long limit trimming of lens with
The maximum effectively optical aperture ratio range of lens is: more than 0.99.
Preferably, in above-mentioned head-wearing display device, effectively show, at display screen, the length and width that picture is corresponding
When ratio is 16:4, the reservation size minimum of a value after the broadside trimming of lens is effective optics with the maximum of lens
Aperture ratio range is: more than 0.27；And/or, the reservation size minimum of a value after the long limit trimming of lens with
The maximum effectively optical aperture ratio range of lens is: more than 1.00.
Preferably, in above-mentioned head-wearing display device, effectively show, at display screen, the length and width that picture is corresponding
When ratio is 16:3, the reservation size minimum of a value after the broadside trimming of lens is effective optics with the maximum of lens
Aperture ratio range is: more than 0.22；And/or, the reservation size minimum of a value after the long limit trimming of lens with
The maximum effectively optical aperture ratio range of lens is: more than 1.02.
Figure 10 shows long limit and the broadside trimming mode simultaneously of a kind of head-wearing display device, wherein puts down for two groups
Row dotted line position is i.e. respectively long limit and broadside excision line, and the unbroken circle being relatively large in diameter represents the original chi of lens
Very little, the unbroken circle that diameter is less represents the maximum effectively optical dimensions of lens.Wherein, A be lens
Big effectively optical aperture, B is lens external diameter, and C is that lens fabricate surplus, and D is that lens carry out broadside
Reservation size after trimming, E represent lens carry out the trimming of long limit after reservation size.
Figure 11 and Figure 12 respectively illustrates head-wearing display device of the present utility model by meaning shown in Figure 10
Mode carries out the eyepiece optical system Facad structure after broadside and the trimming simultaneously of long limit and stereochemical structure, it can be seen that
Carrying out the lens 30 after broadside and the trimming of long limit is rectangle；Reservation size after the long limit trimming of lens is minimum
Value with the maximum effectively optical aperture ratio range of lens is: 0.683-0.992.Figure 13 show by Fig. 6,
The mode of Figure 10 carries out the eyepiece optical system index path before long limit and broadside trimming, and Figure 14 shows by figure
6, the eyepiece optical system index path after the mode of Figure 10 carries out long limit and broadside trimming, it can be seen that even if entering
Having gone long limit and broadside trimming, its light path 100 is not affected, and still ensures that eyepiece optical system meets
The optical properties such as the big angle of visual field, hi-vision resolving power, low distortion, the little curvature of field, small size.
Preferably, in above-described embodiment, the mode anticipated as shown in Figure 10 carries out trimming process, and display screen has
When the length that effect display picture is corresponding is 16:16 with width ratio, the reservation size after the broadside trimming of lens
Minimum of a value with the maximum effectively optical aperture ratio range of lens is: more than 0.66；The long limit trimming of lens
After the maximum effectively optical aperture ratio range of reservation size minimum of a value and lens be: more than 0.683；
Preferably, in above-described embodiment, the mode anticipated as shown in Figure 10 carries out trimming process, and display screen has
When the length that effect display picture is corresponding is 16:12 with width ratio, the reservation size after the broadside trimming of lens
Minimum of a value with the maximum effectively optical aperture ratio of lens is: more than 0.57；After the long limit trimming of lens
Effective optical aperture ratio range is with the maximum of lens to retain size minimum of a value: more than 0.778.
Preferably, in above-described embodiment, the mode anticipated as shown in Figure 10 carries out trimming process, and display screen has
When the length that effect display picture is corresponding is 16:10 with width ratio, the reservation size after the broadside trimming of lens
Minimum of a value with the maximum effectively optical aperture ratio range of lens is: more than 0.51；The long limit trimming of lens
After the maximum effectively optical aperture ratio range of reservation size minimum of a value and lens be: more than 0.832.
Preferably, in above-described embodiment, the mode anticipated as shown in Figure 10 carries out trimming process, and display screen has
When the length that effect display picture is corresponding is 16:9 with width ratio, the reservation size after the broadside trimming of lens
Minimum of a value with the maximum effectively optical aperture ratio range of lens is: more than 0.47；The long limit trimming of lens
After the maximum effectively optical aperture ratio range of reservation size minimum of a value and lens be: more than 0.860.
In a still further embodiment, carry out trimming process by mode illustrated in Figure 15, the length of lens
While be carried out trimming process after long limit, the front view of lens be cut corner by rectangle after formed polygon
Shape；In the front view of lens, corner cut-out portion is triangle；Triangle is corresponding with the broadside of lens
The length of side of limit z1 is designated as F, and triangle is designated as G with the length of side of long limit corresponding sides z2 of lens, triangle
The length of side of Article 3 limit z3 is designated as H, and angle corresponding for z1 to z3 is ∠ α, and display screen effectively shows picture pair
Linea angulata is ∠ β to the angle on the long limit of display screen active area；Wherein, following relational expression (1) and (2) are met:
∠ α=∠ β=atan (b/a) (1)；
F/D≤0.26 (2)；
In above-mentioned relation formula (1) and (2), a is the length that display screen effectively shows that picture is corresponding, and b is
Display screen effectively shows the width that picture is corresponding, and D is the reservation size after the broadside trimming of lens.
In each embodiment that the utility model provides, head-wearing display device can be simple eye head-wearing display device,
Including: an eyepiece optical system；With, a display screen corresponding with eyepiece optical system.Or, head
Wearing display device is eyes head-wearing display device, including: a left eye eyepiece optical system；With, one with
The left eye display screen that left eye eyepiece optical system is corresponding；One right eye eyepiece optical system；With, one with right
The right eye display screen that eye eyepiece optical system is corresponding.
In a specific embodiment, as shown in Figure 7, Figure 8 and Figure 9, the eyepiece of head-wearing display device
Optical system includes two panels lens 20: the first lens 21 and the second lens 22.Wherein, the first lens 21
Broadside be carried out trimming process after broadside；After the broadside of the second lens 22 was for carrying out trimming process
Broadside, the long limit of the first lens 21 and the second lens 22 is the long limit after carrying out trimming process simultaneously.The
Reservation size minimum of a value after one lens 21 and the second lens 22 broadside trimming is effective optics with the maximum of lens
Aperture ratio range is: 0.22-0.66.At lens external diameter and maximum effective optical aperture ratio it is
During 1.03-1.1, the reservation size minimum of a value after the long limit trimming of lens is effective optical aperture with the maximum of lens
Footpath ratio range is: more than 0.80.It is more than 1.1 at lens external diameter and maximum effective optical aperture ratio
Time, the reservation size minimum of a value after the long limit trimming of lens is effective optical aperture ratio range with the maximum of lens
For: more than 0.9.
In another specific embodiment, as shown in Figure 13 and Figure 14, the eyepiece light of head-wearing display device
System includes three lens: along coaxial first lens the 21, second lens 22 being arranged in order of optical axis direction
With the 3rd lens 23, wherein the first lens 21 are near human eye side, the 3rd lens 23 near image source side, as
Source light is successively watched by human eye by the 3rd lens the 23, second lens the 22, first lens 21；Described
Two lens 22 are convex to image source direction near the surface of image source side；Two optical surfaces of described 3rd lens 23
Curvature direction is identical, all concaves towards image source direction.
Wherein it is preferred to, the broadside of first lens the 21, second lens 22 and the 3rd lens 23 is for carrying out
Crossing the broadside after trimming processes, the reservation size minimum of a value after broadside trimming is effective optical aperture with the maximum of lens
Footpath ratio range is: 0.22-0.66, more preferably: 0.44-0.66；First lens 21, second simultaneously
The long limit of lens 22 and the 3rd lens 23 is the long limit after carrying out trimming process；And second lens 22,
Reservation size minimum of a value after three lens 23 long limit trimmings and the maximum of the second lens the 22, the 3rd lens 23
Effectively optical aperture ratio range is: more than 0.8, and the reservation size after the first lens 21 long limit trimming is
Little value with the maximum effectively optical aperture ratio range of the second lens the 22, the 3rd lens 23 is:
0.683-0.992。
In another specific embodiment, as shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, wear display dress
The eyepiece optical system put includes four lens 10: include from eye-observation side to display screen side along optical axis side
To coaxial the first set of lenses being arranged in order and the second set of lenses, and the effective focal length of described first set of lenses is
Negative value, the effective focal length of described second set of lenses be on the occasion of；Described first set of lenses is made up of two panels lens,
It is proximate to the 4th lens 11 of human eye side respectively and away from the 5th lens 12 of human eye side, and described 4th saturating
Mirror 11 is the positive lens of biconvex shape, and described 4th lens 11 are negative lenses；Described 5th lens 12 lean on
The optical surface of person of modern times's eye side concaves towards human eye side, and radius of curvature is negative value；Described second set of lenses by a piece of or
Multi-disc lens are constituted, and wherein said second lens set at least includes saturating with the 6th of described first set of lenses neighbour the
Mirror 13, and include the 7th lens 14, described 6th lens 13 are positive lens, described 7th lens 14
Between described 6th lens 13 and display screen side.
Wherein it is preferred to, the 4th lens the 11, the 5th lens the 12, the 6th lens 13 and the 7th lens 14
Broadside be carried out trimming process after broadside；And the reservation size minimum of a value after lens broadside trimming with
The maximum effectively optical aperture ratio range of lens is: 0.22-0.66.
In another specific embodiment, the eyepiece optical system of head-wearing display device includes five lens
(not shown): include from eye-observation side to display screen side along optical axis direction coaxial be arranged in order first saturating
Mirror group and the second set of lenses, and the effective focal length of described first set of lenses is negative value, described second set of lenses
Effective focal length be on the occasion of；Described first set of lenses is made up of two panels lens, is proximate to the 8th of human eye side the respectively
Lens and the 9th lens away from human eye side, and described 8th lens are the positive lens of biconvex shape, described
Nine lens are negative lenses；Described 9th lens optical surface near human eye side concaves towards human eye side, radius of curvature
For negative value；Described second set of lenses is made up of one or more pieces lens, and wherein said second lens set is at least wrapped
Including and the tenth lens of described first set of lenses neighbour, described tenth lens are positive lens；Described second lens
Group also include the 11st lens and the 12nd lens, the tenth lens, the 11st lens and the 12nd lens by from
Human eye side is arranged in order to miniscope side；11st lens be positioned at described tenth lens and display screen side it
Between.Wherein, the 8th lens, the 9th lens, the tenth lens, the 11st lens and the 12nd lens are by aforementioned
Mode in each embodiment carries out broadside trimming, or carries out broadside and the trimming of long limit simultaneously.
In another embodiment of the present utility model, additionally provide the head-wearing display device eyepiece light of a kind of basis
The processing method of system, with reference to Fig. 1, comprises the following steps: enter the broadside of head-wearing display device lens
Row trimming processes；Wherein, the reservation size minimum of a value after the broadside trimming of lens and the maximum effectively light of lens
Learning aperture ratio range is: 0.22-0.66；Display screen effectively shows the length and width ratio that picture is corresponding
Scope is: 1:1-16:3.Empirical tests, after carrying out trimming to the broadside of lens so that it retains size
Little value with the maximum effectively optical aperture ratio range of lens is: 0.22-0.66, can not only make eyepiece optics
System overall weight alleviates, easily processes and assemble, can ensure simultaneously eyepiece optical system meet the big angle of visual field,
The optical properties such as hi-vision resolving power, low distortion, the little curvature of field, small size so that head-wearing display device is worn
More comfortable.
In above-mentioned processing method, the reservation a size of D after the broadside trimming of lens, after the long limit trimming of lens
Reservation a size of E, eyepiece optical system processing before external diameter be B；Wherein, B, D, E meet such as ShiShimonoseki
It is formula (3):
(3)；
When the value of E/B is more than 0.92, eyepiece optical system is not carried out the trimming of long limit and processes.
Refering to Fig. 6, when the value of E/B is less than or equal to 0.92, above-mentioned processing method farther includes step
Rapid: the long limit of head-wearing display device lens is carried out trimming process；Wherein, effective with maximum at lens external diameter
When optical aperture ratio is 1.03-1.1, the reservation size minimum of a value after the long limit trimming of lens and lens
Maximum effectively optical aperture ratio range is: more than 0.80.
Refering to Fig. 6, when the value of E/B is less than or equal to 0.92, above-mentioned processing method farther includes step
Rapid: the long limit of head-wearing display device lens is carried out trimming process；Wherein, effective with maximum at lens external diameter
When optical aperture ratio is more than 1.1, the reservation size minimum of a value after the long limit trimming of lens and lens are
Big effectively optical aperture ratio range is: more than 0.9.
Refering to Figure 10, above-mentioned processing method farther includes step: the long limit to head-wearing display device lens
Carry out trimming process；Wherein, the front view of lens is rectangle；Reservation size after the long limit trimming of lens is
Little value with the maximum effectively optical aperture ratio range of lens is: 0.683-0.992.
Refering to Figure 15, above-mentioned processing method farther includes step: lens are carried out corner cut process, lens
Front view be cut corner by rectangle after the polygon that formed；The portion that in the front view of lens, corner is cut out
Divide and be triangle；Triangle is designated as F, triangle and lens with the length of side of broadside corresponding sides z1 of lens
Limit corresponding to long limit be designated as z2, the Article 3 limit of triangle is designated as z3, and angle corresponding for z1 to z3 is ∠
α, display screen effectively shows that picture diagonal is ∠ β to the angle on the long limit of display screen active area；
Wherein, following relational expression (1) and (2) are met:
∠ α=∠ β=atan (b/a) (1)；
F/D≤0.26 (2)；
In above-mentioned relation formula (1) and (2), a is the length that display screen effectively shows that picture is corresponding, and b is
Display screen effectively shows the width that picture is corresponding, and D is the reservation size after the broadside trimming of lens.
To sum up, the utility model, by according to the cutting method set, carries out trimming to the broadside of lens,
Or simultaneously its long limit is carried out trimming so that eyepiece optical system overall weight alleviates, and easily processing and dress
Join, can ensure that eyepiece optical system is meeting the big angle of visual field, hi-vision resolving power, low distortion, little field simultaneously
In the case of the optical properties such as song, small size so that head-wearing display device is worn more comfortable.
It should be appreciated that for those of ordinary skills, can be improved according to the above description
Or conversion, and all these modifications and variations all should belong to the protection model of the utility model claims
Enclose.
Claims (15)
1. a head-wearing display device, including the eyepiece optical system being correspondingly arranged and display screen；Described aobvious
Display screen effectively shows that the length that picture is corresponding with width ratio scope is: 1:1-16:3, described eyepiece optics system
System at least includes one or more pieces lens；It is characterized in that, the broadside of the most a piece of described lens is for carrying out
Cross the broadside after trimming processes, and the reservations size minimum of a value after described lens broadside trimming and described lens
Maximum effectively optical aperture ratio range is: 0.22-0.66.
Head-wearing display device the most according to claim 1, it is characterised in that the most a piece of described
The long limit of lens is to carry out the long limit after trimming processes, and carries out facing of the described lens after the trimming of long limit
Figure be corner be the rectangle of arc-shaped；
When described lens external diameter is 1.03-1.1 with maximum effective optical aperture ratio, the length of described lens
Reservation size minimum of a value after the trimming of limit with the maximum effectively optical aperture ratio range of described lens is: be more than
0.80。
Head-wearing display device the most according to claim 1, it is characterised in that the most a piece of described
The long limit of lens is to carry out the long limit after trimming processes, and carries out facing of the described lens after the trimming of long limit
Figure be corner be the rectangle of arc-shaped；
When described lens external diameter is more than 1.1 with maximum effective optical aperture ratio, the long limit of described lens
Reservation size minimum of a value after trimming with the maximum effectively optical aperture ratio range of described lens is: be more than
0.9。
4. according to the head-wearing display device described in claim 1,2 or 3, it is characterised in that described display
The screen length that effectively display picture is corresponding is 16:16 with width ratio, the guarantor after the broadside trimming of described lens
Effective optical aperture ratio range is with the maximum of described lens to stay size minimum of a value: more than 0.66；
And/or, the reservation size minimum of a value after the long limit trimming of described lens is maximum effective with described lens
Optical aperture ratio range is: more than 0.80.
5. according to the head-wearing display device described in claim 1,2 or 3, it is characterised in that described display
The screen length that effectively display picture is corresponding is 16:12 with width ratio, the guarantor after the broadside trimming of described lens
Effective optical aperture ratio is with the maximum of described lens to stay size minimum of a value: more than 0.57；
And/or, the reservation size minimum of a value after the long limit trimming of described lens is maximum effective with described lens
Optical aperture ratio range is: more than 0.87.
6. according to the head-wearing display device described in claim 1,2 or 3, it is characterised in that described display
The screen length that effectively display picture is corresponding is 16:10 with width ratio, the guarantor after the broadside trimming of described lens
Effective optical aperture ratio range is with the maximum of described lens to stay size minimum of a value: more than 0.51；
And/or, the reservation size minimum of a value after the long limit trimming of described lens is maximum effective with described lens
Optical aperture ratio range is: more than 0.91.
7. according to the head-wearing display device described in claim 1,2 or 3, it is characterised in that described display
The screen length that effectively display picture is corresponding is 16:9 with width ratio, the guarantor after the broadside trimming of described lens
Effective optical aperture ratio range is with the maximum of described lens to stay size minimum of a value: more than 0.47；
And/or, the reservation size minimum of a value after the long limit trimming of described lens is maximum effective with described lens
Optical aperture ratio range is: more than 0.93.
8. according to the head-wearing display device described in claim 1,2 or 3, it is characterised in that described eyepiece
Optical system includes two panels lens, is respectively as follows: the first lens and the second lens；Wherein,
The broadside of described first lens is to carry out the broadside after trimming processes；
The broadside of described second lens is to carry out the broadside after trimming processes, or the most described second lens
Long limit be the long limit after carrying out trimming process.
9. according to the head-wearing display device described in claim 1,2 or 3, it is characterised in that described eyepiece
Optical system includes three lens, is respectively as follows: the first lens, the second lens and the 3rd lens；Wherein,
The broadside of the first lens, the second lens and the 3rd lens is to carry out the broadside after trimming processes, or
The long limit of the first lens, the second lens and the 3rd lens is the long limit after carrying out trimming process simultaneously.
Head-wearing display device the most according to claim 1, it is characterised in that described eyepiece optics system
System includes four lens, is respectively as follows: the 4th lens, the 5th lens, the 6th lens and the 7th lens；Wherein,
The broadside of described 4th lens, the 5th lens, the 6th lens and the 7th lens is and carried out at trimming
Broadside after reason.
11. according to the head-wearing display device described in claim 1,2 or 3, it is characterised in that described head
Wearing display device is simple eye head-wearing display device, including:
One eyepiece optical system；With, a display screen corresponding with described eyepiece optical system.
12. want the head-wearing display device described in 1,2 or 3 according to right, it is characterised in that described in wear
Display device is eyes head-wearing display device, including:
One left eye eyepiece optical system；With, a left eye corresponding with described left eye eyepiece optical system shows
Display screen；
One right eye eyepiece optical system；With, a right eye corresponding with described right eye eyepiece optical system shows
Display screen.
13. according to the head-wearing display device described in claim 1,2 or 3, it is characterised in that described mesh
Mirror optical system includes:
Along coaxial the first lens, the second lens and the 3rd lens being arranged in order of optical axis direction, wherein first is saturating
Mirror near human eye side, the 3rd lens near image source side, image source light successively by the 3rd lens, the second lens,
First lens are watched by human eye；
The combination focal power of described first lens and described second lens be on the occasion of, and the second lens are near image source
The surface of side is convex to image source direction；
Two optical surface curvature directions of described 3rd lens are identical, all concave towards image source direction.
14. according to the head-wearing display device described in claim 1,2 or 3, it is characterised in that described mesh
Mirror optical system includes:
Including from eye-observation side to display screen side along coaxial the first set of lenses being arranged in order of optical axis direction and
Second set of lenses, and the effective focal length of described first set of lenses is negative value, described second set of lenses effective burnt
Away from on the occasion of；
Described first set of lenses is made up of two panels lens, is proximate to the 4th lens of human eye side respectively and away from people
5th lens of eye side, and described 4th lens are the positive lens of biconvex shape, described 4th lens be negative thoroughly
Mirror；Described 5th lens optical surface near human eye side concaves towards human eye side, and radius of curvature is negative value；
Described second set of lenses is made up of one or more pieces lens, wherein said second lens set at least include with
6th lens of described first set of lenses neighbour, and include the 7th lens, described 6th lens are positive lens,
Described 7th lens are between described 6th lens and display screen side.
15. according to the head-wearing display device described in claim 1,2 or 3, it is characterised in that described mesh
Mirror optical system includes: include from eye-observation side to display screen side along optical axis direction coaxial be arranged in order
One set of lenses and the second set of lenses, and the effective focal length of described first set of lenses is negative value, described second lens
Group effective focal length be on the occasion of；
Described first set of lenses is made up of two panels lens, is proximate to the 8th lens of human eye side respectively and away from people
9th lens of eye side, and described 8th lens are the positive lens of biconvex shape, described 9th lens be negative thoroughly
Mirror；
Described second set of lenses is made up of one or more pieces lens, wherein said second lens set at least include with
Tenth lens of described first set of lenses neighbour, described tenth lens are positive lens；
Described second set of lenses also includes the 11st lens and the 12nd lens, the tenth lens, the 11st lens
It is arranged in order to miniscope side by from human eye side with the 12nd lens；
11st lens are between described tenth lens and display screen side.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620214498.6U CN205404965U (en) | 2016-03-18 | 2016-03-18 | Head mounted display |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620214498.6U CN205404965U (en) | 2016-03-18 | 2016-03-18 | Head mounted display |
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| CN205404965U true CN205404965U (en) | 2016-07-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107203040A (en) * | 2016-03-18 | 2017-09-26 | 深圳纳德光学有限公司 | The processing method of head-wearing display device and its eyepiece optical system |
| CN113406778A (en) * | 2020-03-16 | 2021-09-17 | 华为技术有限公司 | Zoom lens, camera module and mobile terminal |
-
2016
- 2016-03-18 CN CN201620214498.6U patent/CN205404965U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107203040A (en) * | 2016-03-18 | 2017-09-26 | 深圳纳德光学有限公司 | The processing method of head-wearing display device and its eyepiece optical system |
| CN107203040B (en) * | 2016-03-18 | 2023-11-10 | 深圳纳德光学有限公司 | Head-mounted display device and processing method of eyepiece optical system thereof |
| CN113406778A (en) * | 2020-03-16 | 2021-09-17 | 华为技术有限公司 | Zoom lens, camera module and mobile terminal |
| CN113490878A (en) * | 2020-03-16 | 2021-10-08 | 华为技术有限公司 | Zoom lens, camera module and mobile terminal |
| CN113406778B (en) * | 2020-03-16 | 2022-12-06 | 华为技术有限公司 | Zoom lens, camera module and mobile terminal |
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