CN205562977U - Short distance optical enlargement module, glasses, helmet and VR system - Google Patents
Short distance optical enlargement module, glasses, helmet and VR system Download PDFInfo
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- CN205562977U CN205562977U CN201620218917.3U CN201620218917U CN205562977U CN 205562977 U CN205562977 U CN 205562977U CN 201620218917 U CN201620218917 U CN 201620218917U CN 205562977 U CN205562977 U CN 205562977U
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Abstract
The utility model discloses a short distance optical enlargement module, including arranging the reflective polarizer, a phase retarder, third lens and the 2nd phase retarder that arrange in proper order, wherein arbitrary position of arbitrary optical device both sides still is equipped with first lens and second lens among reflective polarizer, a phase retarder, third lens and the 2nd phase retarder, in the third lens, be close to the 2nd phase retarder's optical surface is the semi -transparent semi -reflective electrode optical surface, the first focus f3 of third lens satisfies: 1F <= f3 <= 2F, F is the system focal length of this module. Through refining f3, make this module obtain great optical enlargement effect, can use in small -size VR equipment, make it realize the preferred angle of vision, great eye movement scope, high quality imaging. The utility model also discloses an utilize the glasses and the helmet of above -mentioned short distance optical enlargement module, still discloses a VR system that utilizes the above -mentioned glasses or the helmet.
Description
Technical field
This utility model relates to technical field of optical instrument, particularly relates to short distance optical amplifier module, glasses, the helmet
And VR system.
Background technology
At present, there is short distance optical amplifier module, for meeting the image quality of optical amplifier module, logical in module
Often comprise multiple optics, as it is shown in figure 1, include that reflective polarizer 01, first phase postpone successively from image side to thing side
Sheet 02, lens unit 03 and second phase retardation plate 04, in described lens unit 03, near described second phase retardation plate 04
Optical surface be semi-transflective reflective optical surface.In the process of use, the optical imagery of thing side is carried out by described lens unit 03
Penetrate amplification, then reflect on described reflective polarizer 01, then carry out secondary amplification through described lens unit 03, finally lead to
Crossing described reflective polarizer 01 and enter human eye sight, wherein, the core component affecting optical imagery amplification effect is described
Mirror unit.
But, owing to each optics needs certain installing space, the optics therefore formed by multiple optics
Amplify module often size and volume is the biggest, especially can not meet intelligence VR (Virtual Reality, virtual reality) and wear
Wear the structural requirement that equipment small size is ultra-thin.The VR equipment being i.e. required for is designed still has high-amplification-factor in little space
Short distance optics.And, VR equipment the most more focuses on providing good Consumer's Experience sense, and this requires that the most again VR equipment needs to realize
The preferably angle of visual field, bigger eye moves the technical purpose such as scope, high-quality imaging effect.These technical purposes are directly with above-mentioned
The optical characteristics of battery of lens is correlated with.
Therefore, in order to achieve the above object, need the battery of lens in short distance optical amplifier module is carried out parameter setting,
Ensure all to realize above-mentioned purpose in whole VR equipment range, bring more preferable experience sense to user.
Utility model content
This utility model embodiment provides a kind of short distance optical amplifier module, so that meet can be at undersized VR
Equipment uses, and realizes VR equipment and have the preferably angle of visual field, bigger eye to move scope, the purpose of high-quality imaging effect.
Meanwhile, a kind of glasses, the helmet and VR system are additionally provided.
In order to solve above-mentioned technical problem, this utility model embodiment discloses following technical scheme:
A kind of short distance optical amplifier module, including be arranged in order the reflective polarizer of layout, first phase retardation plate,
3rd lens and second phase retardation plate, wherein reflective polarizer, first phase retardation plate, the 3rd lens and second phase are prolonged
Late in sheet, any position of any one optics both sides is additionally provided with the first lens, and be positioned at reflective polarizer, first
In phase delay chip, the 3rd lens and second phase retardation plate, to be provided with second saturating for any position of any one optics both sides
Mirror, wherein: in described 3rd lens, near the optical surface of described second phase retardation plate be half-transmitting and half-reflecting optical surface；Institute
The first focal distance f 3 stating the 3rd lens meets following condition: 1F≤f3≤2F, and wherein F is described short distance optical amplifier module
System focal.
Preferably, at above-mentioned short distance optical amplifier module, the first focal distance f 3 of described 3rd lens meets following condition:
1.5F≤f3≤2F。
Preferably, at above-mentioned short distance optical amplifier module, focal distance f S6 of described half-transmitting and half-reflecting optical surface meet with
Lower condition: 1.5F≤fS6≤5F.
Preferably, at above-mentioned short distance optical amplifier module, in described 3rd lens, near the optical surface of the second lens
Focal distance f S5 meets following condition: | fS5 | >=2F.
Preferably, at above-mentioned short distance optical amplifier module, the system focal F of described short distance optical amplifier module meets
Following condition: 10mm≤F≤32mm.
Preferably, at above-mentioned short distance optical amplifier module, the focal distance f 2 of described second lens meets following condition: 2F
≤-f2。
Preferably, at above-mentioned short distance optical amplifier module, the optical surface of close first lens in described second lens
Focal distance f S3 meets following condition: | fS3 | >=2F.
Preferably, at above-mentioned short distance optical amplifier module, the optical surface of close 3rd lens in described second lens
Focal distance f S4 meets following condition: | fS4 | >=2F.
Preferably, at above-mentioned short distance optical amplifier module, the focal distance f 1 of described first lens meet following condition: 4F≤
f1。
Preferably, at above-mentioned short distance optical amplifier module, near the optics of described second lens in described first lens
Focal distance f S2 in face is equal with the focal distance f 1 of described first lens.
Preferably, at above-mentioned short distance optical amplifier module, the thickness of described optical amplifier module is 8mm～30mm.
Preferably, at above-mentioned short distance optical amplifier module, through described first lens, the second lens and described 3rd saturating
The bore D that the light beam of mirror participation imaging is passed through meets following condition: 0.3F≤D≤0.6F.
Preferably, at above-mentioned short distance optical amplifier module, described short distance optical amplifier module connect eye-distance be 5～
10mm。
It addition, this utility model additionally provides a kind of glasses, including the short distance optical amplifier described in above-mentioned any one
Module, described glasses also include display screen, described display screen and the described coaxial or non-coaxial setting of short distance optical amplifier module.
Furthermore, this utility model additionally provides a kind of helmet, including the short distance optical amplifier described in above-mentioned any one
The described helmet of module also includes display screen, and described display screen is coaxial or non-coaxial with described short distance optical amplifier module to be set
Put.
Finally, this utility model additionally provides a kind of VR system, including described glasses or the described helmet.
From above technical scheme, the short distance optical amplifier module that this utility model provides, by affecting optics
The reflecting surface effective focal length of core component the 3rd lens of amplification effect carries out parameter refinement so that this module, is obtaining
Integral thickness can also be kept less while bigger optical amplifier effect so that this module can be applied at undersized VR equipment
In, and make this VR equipment can realize the preferably angle of visual field, bigger eye and move scope, high-quality imaging effect, to user
Bring more preferable experience sense.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, for ordinary skill people
For Yuan, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of short distance optical amplifier module of the prior art；
The structural representation of a kind of short distance optical amplifier module that Fig. 2 A and Fig. 2 B provides for this utility model embodiment one
Figure；
The distortion figure of a kind of short distance optical amplifier module that Fig. 3 provides for this utility model embodiment one；
The curvature of field figure of a kind of short distance optical amplifier module that Fig. 4 provides for this utility model embodiment one；
The MTF figure of a kind of short distance optical amplifier module that Fig. 5 provides for this utility model embodiment one；
The structural representation of a kind of short distance optical amplifier module that Fig. 6 provides for this utility model embodiment two；
The distortion figure of a kind of short distance optical amplifier module that Fig. 7 provides for this utility model embodiment two；
The curvature of field figure of a kind of short distance optical amplifier module that Fig. 8 provides for this utility model embodiment two；
The MTF figure of a kind of short distance optical amplifier module that Fig. 9 provides for this utility model embodiment three；
The structural representation of a kind of short distance optical amplifier module that Figure 10 provides for this utility model embodiment three；
The distortion figure of a kind of short distance optical amplifier module that Figure 11 provides for this utility model embodiment three；
The curvature of field figure of a kind of short distance optical amplifier module that Figure 12 provides for this utility model embodiment three；
The MTF figure of a kind of short distance optical amplifier module that Figure 13 provides for this utility model embodiment three；
The structural representation of a kind of short distance optical amplifier module that Figure 14 provides for this utility model embodiment four；
The distortion figure of a kind of short distance optical amplifier module that Figure 15 provides for this utility model embodiment four；
The curvature of field figure of a kind of short distance optical amplifier module that Figure 16 provides for this utility model embodiment four；
The MTF figure of a kind of short distance optical amplifier module that Figure 17 provides for this utility model embodiment four.
Detailed description of the invention
For the technical scheme making those skilled in the art be more fully understood that in this utility model, below in conjunction with this reality
With the accompanying drawing in new embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that
Described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on this utility model
In embodiment, the every other enforcement that those of ordinary skill in the art are obtained under not making creative work premise
Example, all should belong to the scope of this utility model protection.
See shown in Fig. 2 A, Fig. 2 B, Fig. 6, Figure 10, Figure 14, the short distance optical amplifier that this utility model embodiment provides
The structural representation of module.Described short distance optical amplifier module includes being arranged in order layout reflective polarizer, first phase
Retardation plate, the 3rd lens 30 and second phase retardation plate, wherein at reflective polarizer, first phase retardation plate, the 3rd lens
30 and second phase retardation plate in any position of any one optics both sides be additionally provided with the first lens, and be positioned at reflection
In formula polaroid, first phase retardation plate, the 3rd lens 30 and second phase retardation plate, any one optics both sides appoints
One position is additionally provided with the second lens, and wherein, described reflective polarizer and described first phase retardation plate are at Fig. 2 A, Fig. 2 B, figure
10, being shown as 50 in Figure 14, described display screen is 40, and described second phase retardation plate is not shown.Described first lens 10, second
Lens 20 and the second lens 30 are the core component affecting optical amplifier effect, and the system focal F of composition is 10～28mm, with
Time, setting of can fitting between described first lens the 10, second lens 20 and the 3rd lens 30, it is possible to have between certain
Away from.
Defined in the present embodiment: in described first lens 10 near described first phase retardation plate for the first optical surface
E1, close described second lens 20 are the second optical surface E2；In described second lens 20 near described first lens 10 for the
Three optical surface E3, close described second phase retardation plate are the 4th optical surface E4；Near described second in described 3rd lens 30
Lens 20 are the 6th optical surface E6 for the 5th optical surface E5, close described second phase retardation plate.
The optical imagery of thing side through described second phase retardation plate, described 3rd lens the 30, second lens 20, described first
Arrive described reflective polarizer after lens 10, described first phase retardation plate, at described reflective polarizer, produce first
After secondary reflection after described first phase retardation plate, described first lens the 10, second lens 20 and described 5th optical surface E5, arrive
Reach described 6th optical surface E6, after producing second time reflection at described 6th optical surface E6, sequentially pass through described second lens again
20, human eye sight, such optical imagery are entered after the first lens 10, described first phase retardation plate and described reflective polarizer
Two secondary reflections and amplification can be completed in described optical amplifier module, reach the requirement of optical magnification.
Wherein, described 3rd lens are the main sources of system focal power, meanwhile, arrange the first lens 10 in the present embodiment
With the second lens 20, two lens cooperate, and can share system focal, balance each other difference mutually, improve image quality.
During in order to described short distance optical amplifier module being applied to intelligence VR wearable device, it is possible to realize preferably visual field
Scope, high-quality imaging effect and the requirement of small size superthin structure, the first focal distance f of described 3rd lens are moved in angle, eye3
(in the 3rd lens, the focal length of reflection optical surface) meet following condition:
1F≤f3≤ 2F, (1)
Wherein F is the focal length of the optical system that described first lens, the second minus lens and the 3rd lens are constituted.Wherein, enter
Penetrate the 5th optical surface E5 described in light transmission, measured focal length after described 6th optical surface E6 reflection be defined as the 3rd lens and contain
Reflecting surface focal distance f3.3rd lens (effective focal length containing reflecting surface) are the main sources of system focal power, if its focal power
Excessive, as close to system total focal power (f3≤ F), then aberration is difficult to correct；If the too small (f of its focal power3>=2F), then its
The focal power that his lens are undertaken is excessive, needs increase lens to correct aberration, is unfavorable for system compact, lightweight.Wherein light
Focal power is inversely proportional to focal length.Preferential, the first focal distance f of described 3rd lens3Meet following condition:
1.5F≤f3≤ 2F, (2)
The system focal F that described first lens the 10, second minus lens 20 and the 3rd lens 30 are constituted is 10mm～32mm,
Meanwhile, can fit between three lens setting, it is possible to have certain spacing.As long as system focal be 10mm～
On the premise of 32mm, shape and the position relationship of three lens are not restricted.
To the 3rd lens focal distance f Han reflecting surface in above-mentioned (1) formula3It is made that restriction, such lens and screen size
Being that the screen of 0.9～3 inch matches, the whole optical system set can obtain the bigger angle of visual field and can allow big
Screen resolution, the most retrievable angle of visual field V is 90 °～100 °, admissible screen resolution is 800*800-
4000*4000。
Based on reaching miniaturization, light-weighted optimization purpose, set the focal distance f of described 6th optical surfaceS6, i.e. half transmitting half
The focal distance f of reflecting surfaceS6Meet following condition:
1.5F≤fS6≤5F。 (3)
Wherein FS6Representing the effective focal length through the 6th optical surface reflection, the reflecting surface of described 6th optical surface E6 is system light
The main source of focal power, if its focal power is excessive, as close to system total focal power (fS6≤ F), then aberration is difficult to correct；With
Time also result in minute surface excessively bend, lens thickness relatively big, and then system thickness can be caused to increase, be unfavorable for that VR wearable device is light
The requirement of thinning.On the contrary, if the too small (f of its focal powerS6>=5F), then the focal power that other lenses is undertaken is excessive, needs to increase
Aberration corrected by lens, is the most just unfavorable for system compact and light-weighted requirement.
It is equally based on and reaches miniaturization, light-weighted optimization purpose, in above-mentioned 3rd lens, described 5th optical surface
Focal distance fS5Meet following condition:
|fS5|≥2F (4)
If described focal distance fS5Too small, then described 30 types of 3rd lens can be caused excessively to bend, be unfavorable for aberration correction；
In general with the second lens the 20, the 3rd lens 10, type excessively curved lens thickness in face is relatively big simultaneously, and optical system can be caused thick
Degree increases, and is unfavorable for the requirement that VR wearable device is lightening.
It is equally based on and reaches miniaturization, light-weighted optimization purpose, the focal distance f of described second minus lens2Meet following bar
Part:
2F≤-f2 (5)
If described focal distance f2Too small (| f1|≤2F), then the face type of described second lens 20 can be caused excessively to bend, introduce
Aberration is relatively big, causes the aberration of whole system to become big；Meanwhile, also can increase the thickness of described second lens 20, be unfavorable for that VR wears
The requirement that equipment of wearing is lightening.
It is equally based on and reaches miniaturization, light-weighted optimization purpose, in the second lens 20, Jiao of described 3rd optical surface
Away from fS3Meet following condition:
|fS3|≥2F (6)
If described focal length FS3Too small (| FS3|≤2F), then described 20 types of second lens can be caused excessively to bend, unfavorable
In aberration correction；In general with the first lens the 10, the 3rd lens 30, type excessively curved lens thickness in face is relatively big, can lead simultaneously
Cause optical system thickness to increase, be unfavorable for the requirement that VR wearable device is lightening.
It is equally based on and reaches miniaturization, light-weighted optimization purpose, in the second lens 20, Jiao of described 4th optical surface
Away from fS4Meet following condition:
|fS4|≥2F (7)
If described focal length FS4Too small (| FS4|≤2F), then described 20 types of second lens can be caused excessively to bend, unfavorable
In aberration correction；In general with the first lens the 10, the 3rd lens 30, excessively face type curved lens thickness is relatively big, can lead simultaneously
Cause optical system thickness to increase, be unfavorable for the requirement that VR wearable device is lightening.
It is equally based on and reaches miniaturization, light-weighted optimization purpose, the focal distance f of described first lens1Meet following condition:
4F≤f1 (8)
If described focal distance f1Too small (| f1|≤4F), then the face type of described first lens 10 can be caused excessively to bend, introduce
Aberration is relatively big, causes the difference of whole system to become big；Meanwhile, also can increase the thickness of described first lens 10, be unfavorable for that VR wears
The requirement that equipment of wearing is lightening.
In order to reach VR wearable device small size, the requirement of superthin structure, the thickness of described optical amplifier module be 8mm～
30mm。
Preferable image quality, described short distance optical amplifier mould can be obtained again while considering VR equipment wear comfort
The eye-distance that connects of group is designed as 5mm～10mm.
As shown in Figure 2 A, move scope, simultaneously can obtain again preferable image quality, the aperture of thing side to obtain big eye
Adjustable extent be designed as 1.7F～3.5F, i.e. through described first lens, described second lens and the 3rd lens participate in imaging
The bore D that passed through of light beam meet following condition:
0.3F≤D≤0.6F (9)
Corresponding with equation (9), eye moves scope A and can reach as 5mm～9mm.
On the basis of each technical scheme above-mentioned, the short distance optical amplifier module after optimizing for several times can be applied
In a kind of VR glasses, described glasses also include display screen, described display screen coaxial with described short distance optical amplifier module or
Non-coaxial setting.As shown in Figure 2 A for situation about being coaxially disposed, Fig. 2 B is the situation of non-coaxial setting, regardless of whether be coaxially disposed
The optical amplifier effect extremely angle of visual field and the eye that the most do not affect this module move scope.
On the basis of each technical scheme above-mentioned, the short distance optical amplifier module after optimizing for several times can also be answered
For a kind of helmet, the described helmet also includes display screen, and described display screen is coaxial or non-with described short distance optical amplifier module
It is coaxially disposed.
The short distance that this utility model provides can also be amplified module and be applied to a kind of VR system, this system can include
Above-mentioned glasses or the helmet, or other applicable wearable device with Consumer's Experience.
Short distance optical amplifier module is provided to be described further the present embodiment below in conjunction with subordinate list.
In each example, described first lens the 10, second lens 20 and the specific design parameter list of the 3rd lens 30
In, OBJ represents the thing in optical system, and IMA represents the picture in optical system, and STO represents the diaphragm in optical system, and i represents
The order (i0)+1 of the optical surface from thing side, the second lens 20 on the right side of the first directive of the first lens 10 on the left of light, then penetrate
To the 3rd lens 30, run into material (Glass) and be classified as MIRROR and i.e. reflect to walk toward rightabout, reflex to second MIRROR again
Secondary reversely then walk from left to right, be finally reached image planes.
Embodiment one
As in figure 2 it is shown, in described short distance optical amplifier module, design described 3rd lens 30 containing reflecting surface focal length
f3Equal to system focal F,
Described first lens the 10, second lens 20 and the specific design parameter such as table one of the 3rd lens 30:
In Table 1, the first row OBJ represents the relevant design parameter of object plane；The third line STO represents the light in optical system
Door screen, described aperture is 9mm；Fourth line and fifth line represent the reflective polarizer in optics module and first phase retardation plate shape
The diaphragm become, the type of described diaphragm be STANDARD index plane, material be BK7, diameter 30.18156mm, asphericity coefficient be
0；6th row and the 7th row represent the first optical surface E1 and second data corresponding for optical surface E2 of described first lens 10 respectively,
The radius of curvature of described first optical surface E and the second optical surface E2 is Infinity plane, the thickness of described first lens 10
For 2mm (i.e. spacing from the first optical surface E1 to described second optical surface E2, the one-tenth-value thickness 1/10 the 6th row data), material
For H-LAK5A；8th row and the 9th row represent the 3rd optical surface E3 and the 4th optical surface E4 pair of described second lens 20 respectively
The data answered, the radius of curvature of described 3rd optical surface E3 is Infinity plane, the radius of curvature of described 4th optical surface E4
For Infinity plane, the thickness of described second lens 20 is that 1.5mm is (i.e. from the 3rd optical surface E3 to described 4th optical surface E4
Between spacing, one-tenth-value thickness 1/10 in the 8th row data), material be H-ZF13.Tenth row and the tenth a line represent described respectively
5th optical surface E5 of three lens 30 and the 6th data corresponding for optical surface E6, the radius of curvature of described 5th optical surface E5 is respectively
For-68 and-66.19397, the thickness of described 3rd lens 30 is that 2mm is (i.e. from the 5th optical surface E5 to described 6th optical surface E6
Between spacing, one-tenth-value thickness 1/10 in the tenth row data), material be H-LAK10.
12nd walks to the 20th five elements, and to represent light saturating at described diaphragm, first lens the 10, second lens 20 and the 3rd
Reflection between mirror 30 and the relevant parameter in transmission.26th row represents the glass-film in display screen liquid crystal layer, described glass
The thickness of glass film is 0.3mm, material is BK7.27th row IMA represents the picture in optical system.
Other parameter such as table two that described short distance optical amplifier module is corresponding:
Table two
From the MTF figure of Fig. 5, draw each visual field mean ordinate (modulation transfer function (MTF)) abscissa higher than 0.18
(every millimeter of spatial frequency) value, the aberration rate in Fig. 3 controls in the range of (-30%, 0), the curvature of field in Fig. 4 control (-
10mm, 10mm) in the range of, and show that the visual angle of described short distance optical amplifier module resolves power and can support dividing of 400*400
Resolution, say, that when the 3rd lens containing reflecting surface focal length be 1F, fS6When focal length is 1F, obtaining bigger optical amplifier effect
Integral thickness can also be kept less so that this module can be applied in undersized VR equipment, and this VR is set simultaneously
Moving scope 9mm, high-quality imaging effect for realizing the preferably angle of visual field 100 °, bigger eye, screen resolution is 800*
800, bring more preferable experience sense to user.
Embodiment two
As shown in Figure 6, in described short distance optical amplifier module, design described 3rd lens 30 containing reflecting surface focal length
f3Equal to system focal 1.37F,
Described first lens the 10, second lens 20 and the specific design parameter such as table three of the 3rd lens 30:
Table three
In table three, the first row OBJ represents the relevant design parameter of object plane；The third line STO represents the light in optical system
Door screen, described aperture is 9mm；Fourth line and fifth line represent the reflection type polarizer in optics module and first phase retardation plate shape
The diaphragm become, the type of described diaphragm be STANDARD index plane, material be BK7, diameter 26.09264mm, asphericity coefficient be
0；6th row and the 7th row represent the first optical surface E1 and second data corresponding for optical surface E2 of described first lens 10 respectively,
The radius of curvature of described first optical surface E and the second optical surface E2 is respectively Infinity plane and-89.75873, and described first
The thickness of lens 10 is that 2mm is (i.e. spacing from the first optical surface E1 to described second optical surface E2, the 6th row data
One-tenth-value thickness 1/10), material be H-K9L；8th row and the 9th row represent the 3rd optical surface E3 and the 4th of described second lens 20 respectively
The data that optical surface E4 is corresponding, the radius of curvature of described 3rd optical surface E3 is respectively 84.66267 and 54.38812, described
The thickness of two lens 20 is that 1mm is (i.e. spacing from the 3rd optical surface E3 to described 4th optical surface E4, the 8th row data
One-tenth-value thickness 1/10), material be H-ZF11.Tenth row and the tenth a line represent respectively described 3rd lens 30 the 5th optical surface E5 and
6th data corresponding for optical surface E6, the radius of curvature of described 5th optical surface E5 is respectively 160.6342 and-54.28037, institute
Stating the thickness of the 3rd lens 30 is 4mm (i.e. spacing from the 5th optical surface E5 to described 6th optical surface E6, the tenth line number
One-tenth-value thickness 1/10 according to), material be D-LAK70.
12nd walks to the 20th five elements, and to represent light saturating at described diaphragm, first lens the 10, second lens 20 and the 3rd
Reflection between mirror and the relevant parameter in transmission.26th row represents the glass-film in display screen liquid crystal layer, described glass
The thickness of film is 1mm, material is BK7.27th row IMA represents the picture in optical system.
Other parameter such as table four that described short distance optical amplifier module is corresponding:
Table four
From the MTF figure of Fig. 9, draw each visual field mean ordinate (modulation transfer function (MTF)) abscissa higher than 0.18
(every millimeter of spatial frequency) value, the aberration rate in Fig. 7 controls in the range of (-30.5%, 0), and the curvature of field control in Fig. 8 controls
In the range of (-0.2mm, 0.2mm), and then show that the visual angle of described short distance optical amplifier module resolves power and can support 400*400
Resolution, say, that when the 3rd lens containing reflecting surface focal length be 1.37F, fS6When focal length is 2F, put obtaining bigger optics
Integral thickness can also be kept less while big effect so that this module can be applied in undersized VR equipment, and makes
Obtain this VR equipment to realize the preferably angle of visual field 96 °, bigger eye and move scope 7mm, high-quality imaging effect 1800*1800,
More preferable experience sense is brought to user.
Embodiment three
As shown in Figure 10, in described short distance optical amplifier module, that designs described 3rd lens 30 contains reflection wrinkly face
Away from f3Equal to system focal 1.5F,
Described first lens the 10, second lens 20 and the specific design parameter such as table five of the 3rd lens 30:
Table five
| Surf | Type | Comment | Radius | Thickness | Glass | Diameter | Conic |
| OBJ | STANDARD | Infinity | Infinity | 0 | 0 | ||
| 1 | PARAXIAL | - | 0 | 9 | - | ||
| STO | STANDARD | Infinity | 9 | 9 | 0 | ||
| 3 | STANDARD | Infinity | 0.3 | BK7 | 30.18156 | 0 | |
| 4 | STANDARD | Infinity | 0 | 30.53068 | 0 | ||
| 5 | STANDARD | Infinity | 4 | H-LAK5A | 30.53068 | 0 | |
| 6 | STANDARD | -126.3604 | 2.51823 | 33.47865 | 0 | ||
| 7 | STANDARD | 252.9636 | 1.5 | H‐ZF13 | 41.40807 | 0 | |
| 8 | STANDARD | 123.3701 | 1.701081 | 43.19258 | 0 | ||
| 9 | STANDARD | 269.2846 | 5.5 | H-LAK10 | 44.98185 | 0 | |
| 10 | STANDARD | -101.0977 | -5.5 | MIRROR | 46.69545 | 0 | |
| 11 | STANDARD | 269.2846 | 1.701081 | 46.59742 | 0 | ||
| 12 | STANDARD | 123.3701 | -1.5 | H-ZF13 | 46.49442 | 0 | |
| 13 | STANDARD | 252.9636 | -2.51823 | 46.6367 | 0 | ||
| 14 | STANDARD | -126.3604 | -4 | H-LAK5A | 46.36075 | 0 | |
| 15 | STANDARD | Infinity | 0 | 46.02962 | 0 | ||
| 16 | STANDARD | Infinity | -0.3 | BK7 | 46.02962 | 0 | |
| 17 | STANDARD | Infinity | 0.3 | MIRROR | 45.97037 | 0 | |
| 18 | STANDARD | Infinity | 0 | 45.91112 | 0 | ||
| 19 | STANDARD | Infinity | 4 | H-LAK5A | 45.91112 | 0 | |
| 20 | STANDARD | -126.3604 | 2.51823 | 45.56688 | 0 | ||
| 21 | STANDARD | 252.9636 | 1.5 | H-ZF13 | 42.38623 | 0 | |
| 22 | STANDARD | 123.3701 | 1.701081 | 41.45218 | 0 | ||
| 23 | STANDARD | 269.2846 | 5.5 | H-LAK10 | 41.13083 | 0 | |
| 24 | STANDARD | -101.0977 | 0.5 | 4.025954 | 0 | ||
| 25 | STANDARD | Infinity | 0.3 | BK7 | 37.9971 | 0 | |
| 26 | STANDARD | Infinity | 0 | 37.89037 | 0 | ||
| IMA | STANDARD | Infinity | 37.89037 | 0 |
In table five, the first row OBJ represents the relevant design parameter of object plane；The third line STO represents the light in optical system
Door screen, described aperture is 9mm；Fourth line and fifth line represent the reflection type polarizer in optics module and first phase retardation plate shape
The diaphragm become, the type of described diaphragm be STANDARD index plane, material be BK7, diameter 30.18156mm, asphericity coefficient be
0；6th row and the 7th row represent the first optical surface E1 and second data corresponding for optical surface E2 of described first lens 10 respectively,
The radius of curvature of described first optical surface E and the second optical surface E2 is respectively Infinity plane and-126.3604, and described first
The thickness of lens 10 is that 4mm is (i.e. spacing from the first optical surface E1 to described second optical surface E2, the 6th row data
One-tenth-value thickness 1/10), material be H-LAK5A；8th row and the 9th row represent the 3rd optical surface E3 and of described second lens 20 respectively
Four data corresponding for optical surface E4, the radius of curvature of described 3rd optical surface E3 is respectively 252.9636 and 123.3701, described
The thickness of the second lens 20 is 1.5mm (i.e. spacing from the 3rd optical surface E3 to described 4th optical surface E4, the 8th line number
One-tenth-value thickness 1/10 according to), material be H-ZF13.Tenth row and the tenth a line represent the 5th optical surface of described 3rd lens 30 respectively
E5 and the 6th data corresponding for optical surface E6, the radius of curvature of described 5th optical surface E5 be respectively 269.2846 and-
101.0977, the thickness of described 3rd lens 30 is that 5.5mm is (i.e. from the 5th optical surface E5 to described 6th optical surface E6
One-tenth-value thickness 1/10 in spacing, the tenth row data), material be H-LAK10.
12nd walks to the 20th five elements, and to represent light saturating at described diaphragm, first lens the 10, second lens 20 and the 3rd
Reflection between mirror and the relevant parameter in transmission.26th row represents the glass-film in display screen liquid crystal layer, described glass
The thickness of film is 0.3mm, material is BK7.27th row IMA represents the picture in optical system.
Other parameter such as table six that described short distance optical amplifier module is corresponding:
Table six
From the MTF figure of Figure 13, draw each visual field mean ordinate (modulation transfer function (MTF)) abscissa higher than 0.18
(every millimeter of spatial frequency) value, the aberration rate in Figure 11 controls in the range of (-34%, 0), and the curvature of field control in Figure 12 controls
In the range of (-0.2mm, 0.2mm), and then show that the visual angle of described short distance optical amplifier module resolves power and can support 400*400
Resolution.That is when the 3rd lens containing reflecting surface focal length be 1.5F, fS6When focal length is 2.1F, put obtaining bigger optics
Integral thickness can also be kept less while big effect so that this module can be applied in undersized VR equipment, and makes
Obtain this VR equipment to realize the preferably angle of visual field 100 °, bigger eye and move scope 9mm, high-quality imaging effect 4000*4000,
More preferable experience sense is brought to user.
Embodiment four
As shown in figure 14, in described short distance optical amplifier module, that designs described 3rd lens 30 contains reflection wrinkly face
Away from f3Equal to system focal 2F,
Described first lens the 10, second lens 20 and the specific design parameter such as table seven of the 3rd lens 30:
Table seven
In table seven, the first row OBJ represents the relevant design parameter of object plane；The third line STO represents the light in optical system
Door screen, described aperture is 9mm；Fourth line and fifth line represent the reflection type polarizer in optics module and first phase retardation plate shape
The diaphragm become, the type of described diaphragm be STANDARD index plane, material be BK7, diameter 30.18156mm, asphericity coefficient be
0；6th row and the 7th row represent the first optical surface E1 and second data corresponding for optical surface E2 of described first lens 10 respectively,
The radius of curvature of described first optical surface E and the second optical surface E2 is respectively Infinity plane and-90.62525, and described first
The thickness of lens 10 is that 6mm is (i.e. spacing from the first optical surface E1 to described second optical surface E2, the 6th row data
One-tenth-value thickness 1/10), material be H-LAK5A；8th row and the 9th row represent the 3rd optical surface E3 and of described second lens 20 respectively
Four data corresponding for optical surface E4, the radius of curvature of described 3rd optical surface E3 is respectively 99 and 84.62125, described second saturating
The thickness of mirror 20 is that 1.5mm is (i.e. spacing from the 3rd optical surface E3 to described 4th optical surface E4, the 8th row data
One-tenth-value thickness 1/10), material be H-ZF13.Tenth row and the tenth a line represent the 5th optical surface E5 and of described 3rd lens 30 respectively
Six data corresponding for optical surface E6, the radius of curvature of described 5th optical surface E5 Infinity plane respectively is and-160, described
The thickness of the 3rd lens 30 is 4mm (i.e. spacing from the 5th optical surface E5 to described 6th optical surface E6, the tenth row data
In one-tenth-value thickness 1/10), material be H-LAK10.
12nd walks to the 20th five elements, and to represent light saturating at described diaphragm, first lens the 10, second lens 20 and the 3rd
Reflection between mirror and the relevant parameter in transmission.26th row represents the glass-film in display screen liquid crystal layer, described glass
The thickness of film is 0.3mm, material is BK7.27th row IMA represents the picture in optical system.
Other parameter such as table eight that described short distance optical amplifier module is corresponding:
Table eight
From the MTF figure of Figure 17, draw each visual field mean ordinate (modulation transfer function (MTF)) abscissa higher than 0.18
(every millimeter of spatial frequency) value, the aberration rate in Figure 15 controls in the range of (-33.6%, 0), and the curvature of field in Figure 16 controls
In the range of (-2mm, 2mm), and then show that the visual angle of described short distance optical amplifier module resolves power and can support 400*400's
Resolution.That is when the 3rd lens containing reflecting surface focal length be 2F, fS6When focal length is 2.67F, obtaining bigger optical amplifier
Integral thickness can also be kept while effect less so that this module can be applied in undersized VR equipment, and makes
This VR equipment can realize the preferably angle of visual field 100 °, bigger eye and move scope 9mm, high-quality imaging effect 1200*1200, gives
User brings more preferable experience sense.Simultaneously, it should be pointed out that time, when the 3rd lens containing reflecting surface focal length be 2F, fS6Focal length also may be used
To be not configured to 2.67F, as long as by adjusting the first lens and/or the focal length of the second lens, fS6All can be real in the range of 1F-5F
Existing above-mentioned technical purpose.
It should be noted that in this article, such as the relational terms of " first " and " second " or the like is used merely to one
Individual entity or operation separate with another entity or operating space, and not necessarily require or imply these entities or operate it
Between exist any this reality relation or order.And, term " includes ", " comprising " or its any other variant are intended to
Contain comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include those
Key element, but also include other key elements being not expressly set out, or also include for this process, method, article or set
Standby intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that
Other identical element is there is also in including the process of described key element, method, article or equipment.
The above is only detailed description of the invention of the present utility model, makes to skilled artisans appreciate that or realize this
Utility model.Multiple amendment to these embodiments will be apparent to one skilled in the art, herein institute
The General Principle of definition can realize in the case of without departing from spirit or scope of the present utility model in other embodiments.
Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to former with disclosed herein
The widest scope that reason is consistent with features of novelty.
The above is only detailed description of the invention of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (16)
1. a short distance optical amplifier module, it is characterised in that include being arranged in order the reflective polarizer of layout, the first phase
Position retardation plate, the 3rd lens and second phase retardation plate, wherein reflective polarizer, first phase retardation plate, the 3rd lens and
In second phase retardation plate, any position of any one optics both sides is additionally provided with the first lens, and be positioned at reflective partially
Shake any position of any one optics both sides in sheet, first phase retardation plate, the 3rd lens and second phase retardation plate
Be provided with the second lens, wherein: in described 3rd lens, near the optical surface of described second phase retardation plate be half-transmitting and half-reflecting
Optical surface；First focal distance f of described 3rd lens3Meet following condition: 1F≤f3≤ 2F, wherein F is that described short distance optics is put
The system focal of big module.
Short distance optical amplifier module the most according to claim 1, it is characterised in that the first focal length of described 3rd lens
f3Meet following condition: 1.5F≤f3≤2F。
Short distance optical amplifier module the most according to claim 1, it is characterised in that described half-transmitting and half-reflecting optical surface
Focal distance fS6Meet following condition: 1.5F≤fS6≤5F。
Short distance optical amplifier module the most according to claim 1, it is characterised in that in described 3rd lens, near the
The focal distance f of the optical surface of two lensS5Meet following condition: | fS5|≥2F。
5. according to described short distance optical amplifier module arbitrary in claim 1-4, it is characterised in that described short distance optics
The system focal F amplifying module meets following condition: 10mm≤F≤32mm.
Short distance optical amplifier module the most according to claim 5, it is characterised in that the focal distance f of described second lens2Full
Be enough to lower condition: 2F≤-f2。
Short distance optical amplifier module the most according to claim 5, it is characterised in that near first in described second lens
The focal distance f of the optical surface of lensS3Meet following condition: | fS3|≥2F。
Short distance optical amplifier module the most according to claim 5, it is characterised in that near the 3rd in described second lens
The focal distance f of the optical surface of lensS4Meet following condition: | fS4|≥2F。
Short distance optical amplifier module the most according to claim 5, it is characterised in that the focal distance f of described first lens1Full
Be enough to lower condition: 4F≤f1。
Short distance optical amplifier module the most according to claim 9, it is characterised in that near institute in described first lens
State the focal distance f of the optical surface of the second lensS2Focal distance f with described first lens1Equal.
11. short distance optical amplifier modules according to claim 1, it is characterised in that the thickness of described optical amplifier module
Degree is 8mm～30mm.
12. short distance optical amplifier modules according to claim 1, it is characterised in that through described first lens, second
The bore D that the light beam that lens and described 3rd lens participate in imaging is passed through meets following condition: 0.3F≤D≤0.6F.
13. short distance optical amplifier modules according to claim 1, it is characterised in that described short distance optical amplifier mould
The eye-distance that connects of group is 5～10mm.
14. 1 kinds of glasses, it is characterised in that include the short distance optical amplifier mould described in any one in claim 1-13
Group, described glasses also include display screen, described display screen and the described coaxial or non-coaxial setting of short distance optical amplifier module.
15. 1 kinds of helmets, it is characterised in that include the short distance optical amplifier mould described in any one in claim 1-13
Group, the described helmet also includes display screen, described display screen and the described coaxial or non-coaxial setting of short distance optical amplifier module.
16. 1 kinds of VR systems, it is characterised in that include the glasses described in claim 14 or the helmet described in claim 15.
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| CN201620218917.3U CN205562977U (en) | 2016-03-21 | 2016-03-21 | Short distance optical enlargement module, glasses, helmet and VR system |
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