CN209265076U - Virtual reality device - Google Patents
Virtual reality device Download PDFInfo
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- CN209265076U CN209265076U CN201821816294.5U CN201821816294U CN209265076U CN 209265076 U CN209265076 U CN 209265076U CN 201821816294 U CN201821816294 U CN 201821816294U CN 209265076 U CN209265076 U CN 209265076U
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- polaroid
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Abstract
The utility model discloses a kind of virtual reality devices.The virtual reality device includes lens, infrared cutoff polaroid and the screen mould group of coaxial arrangement, the screen mould group is located at the focal position of the lens, the infrared cutoff polaroid is between the screen mould group and the lens, and separately or the infrared cutoff polaroid is located at the side opposite with the screen mould group of the lens with the screen mould group；The infrared cutoff polaroid includes the first polaroid and optical filter, and first polaroid fits together with the optical filter.
Description
Technical field
The utility model relates to optics field of display technology, more particularly, to a kind of virtual reality device.
Background technique
Show in equipment that display is divided into left and right two parts, shows what images of left and right eyes was seen respectively in existing VR
Image.Since the image that images of left and right eyes is respectively seen is variant, so 3D effect is presented in the brain.Optical mirror slip is convex lens,
The image of display is amplified.Since by optical system, the visual angle of scene seen by person is bigger, for example, can achieve
100 °, so the telepresenc that user experiences can greatly be enhanced.Meanwhile the posture on head can be transmitted to by attitude detection system
Computer, the field angle that computer can be seen according to the pose adjustment on head, to make one seemingly to watch the same, usual handle in reality
This experience is known as immersion experience.
VR is shown in equipment, and optical mirror slip is usually arranged before screen mould group.Optical mirror slip is usually magnifying glass.Screen
In the focus of optical mirror slip.Screen mould group generally includes screen ontology and the polaroid of the two sides of screen ontology is arranged in.
When a branch of directional light or less parallel light are incident on optical mirror slip, other than light, especially visible wavelength range
Light can pool a point in screen mould group, and can burn screen ontology or polarisation if the aggregation of energy is sufficiently strong
Piece leads to the generation of macula lutea.
Accordingly, it is desirable to provide a kind of new technical solution, to solve the above technical problems.
Utility model content
One purpose of the utility model is to provide a kind of new solution of virtual reality device.
It is according to the present utility model in a first aspect, providing a kind of virtual reality device.The virtual reality device includes same
Lens, infrared cutoff polaroid and the screen mould group of axis setting, the screen mould group is located at the focal position of the lens, described
Infrared cutoff polaroid is and separately or described with the screen mould group between the screen mould group and the lens
Infrared cutoff polaroid is located at the side opposite with the screen mould group of the lens；The infrared cutoff polaroid includes the
One polaroid and optical filter, first polaroid fit together with the optical filter.
Optionally, it is the light except 400nm to 700nm that the infrared cutoff polaroid, which is configured as cutoff wavelength, and
Allowing wavelength is that the light within 400nm to 700nm passes through.
Optionally, the lens include Fresnel lenses, the Fresnel lenses include the Fresnel surface that is oppositely arranged and
Aspherical, the Fresnel surface is towards first polaroid.
Optionally, the screen mould group includes the second polaroid, LCD screen and third polaroid, the LCD screen position
Between second polaroid and the third polaroid, second polaroid is adjacent to first polaroid, and described
One polaroid it is parallel with the transmission axis direction of second polaroid through axis direction.
Optionally, the close institute at midpoint of the infrared cutoff polaroid between the lens and the screen mould group
State lens side.
Optionally, the material of the lens is optics plastic cement, optical glass or optical resin.
Optionally, first polaroid is between the optical filter and the lens or the optical filter is located at
Between first polaroid and the lens.
Optionally, the optical filter is Red lightscreening plate.
According to another embodiment of the present disclosure, a kind of virtual reality device is provided.The virtual reality device includes same
Lens, optical filter and the screen mould group of axis setting, the screen mould group include the second polaroid, LCD screen and third polarisation
Piece, the LCD screen and/or the third polaroid are located at the focal position of the lens, and the LCD screen is located at described
Between second polaroid and the third polaroid, second polaroid is adjacent to the lens, by second polaroid court
To the mobile set distance of the lens, so that second polaroid and the LCD screen are separately, or by described second
Polaroid is moved to the side opposite with the LCD screen of the lens；The optical filter is bonded with second polaroid
Together, to constitute infrared cutoff polaroid.
According to one embodiment of the disclosure, which can be effectively prevented screen mould group and be burnt by ambient
Wound.
By the detailed description referring to the drawings to the exemplary embodiment of the utility model, the utility model it is other
Feature and its advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiments of the present invention, and
And together with its explanation for explaining the principles of the present invention.
Fig. 1 is the partial schematic diagram according to the virtual reality device of one embodiment of the disclosure.
Fig. 2 is the partial schematic diagram according to another virtual reality device of one embodiment of the disclosure.
Fig. 3 is the partial schematic diagram of virtual reality device according to another embodiment of the present disclosure.
Fig. 4 is the partial schematic diagram of another virtual reality device according to another embodiment of the present disclosure.
Description of symbols:
11: Fresnel lenses；12: Fresnel surface；13: aspherical；14: screen mould group；15: the first polaroids；16: the second
Polaroid；17: third polaroid；18:LCD screen；19: backlight；20: optical filter.
Specific embodiment
The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should also be noted that unless another
It illustrates outside, the component and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the utility model processed.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical
Novel and its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
According to one embodiment of the disclosure, a kind of virtual reality device is provided.As shown in Figs. 1-2, virtual reality is set
Standby includes lens, infrared cutoff polaroid and the screen mould group 14 of coaxial arrangement.Screen mould group 14 is located at the focal position of lens.
Infrared cutoff polaroid is located between screen mould group 14 and lens, and separately with screen mould group 14, as shown in Figure 1；Or it is red
Outer cut-off polaroid is located at the side opposite with screen mould group 14 of lens, as shown in Figure 2.For example, infrared cutoff polaroid with
Lens are separately.Infrared cutoff polaroid includes the first polaroid 15 and optical filter 20.First polaroid 15 is pasted with optical filter 20
It is combined.The polarization direction of first polaroid 15 is parallel with the polarization direction of light that screen mould group 14 projects.
For example, the main direction of lens, infrared cutoff polaroid and screen mould group 14 is perpendicular to optical axis.Optical axis is across saturating
The imaginary axis at the center of mirror, infrared cutoff polaroid, screen mould group 14 etc..In screen mould group 14 and infrared cutoff polaroid phase
Pair side be provided with functional module, such as backlight 19, PCB, processor etc..
The relative position of first polaroid 15 and optical filter 20 is it is not limited here.It can be the first polaroid 15 and be located at filter
Between mating plate 20 and lens or optical filter 20 is between the first polaroid 15 and lens, and those skilled in the art can root
It is configured according to actual needs.When ambient first passes through optical filter 20 using the first polaroid 15, infrared light and ultraviolet
Light can be filtered, so that the light into the first polaroid 15 only remains visible light and avoids to reduce the energy of light
First polaroid 15 is caused to damage.
The material of optical filter 20 is optics plastic cement, optical glass or optical resin etc., and color can be according to practical need
It is selected, such as red, purple, green, colourless etc..In this example embodiment, optical filter 20 is Red lightscreening plate 20.
The major surfaces in parallel of the main surface of optical filter 20 and the first polaroid 15, and the two fits together, such as passes through
Glue secures the two together, in order to be installed in virtual reality device.
In the embodiments of the present disclosure, when ambient is injected from lens, the first polaroid 15 is absorbed perpendicular to transmission axis side
To polarised light, and allow to be parallel to polarised light through axis direction through the first polaroid 15.Optical filter 20 can be effectively
End the light other than visible light to penetrate, to reduce the energy of incident light.The visible light projected from infrared cutoff polaroid
Become parallel to the linearly polarized light through axis direction.Infrared cutoff polaroid, which significantly reduces, to be incident in screen mould group 14
The intensity of light.The linearly polarized light being parallel to through axis direction focuses in screen mould group 14.Due to the energy intensity of linearly polarized light
It is lower, screen mould group 14 (for example, polaroid and/or LCD screen of mould group) will not be damaged, avoid the production of macula lutea
It is raw.The virtual reality device has the characteristics that good tolerance.
In addition, ambient is when through infrared cutoff polaroid, due to not focusing, therefore will not be to the first polaroid 15
It is damaged with optical filter 20.
In addition, in normal use process, the transmission axis direction of light and the first polaroid 15 that screen mould group 14 projects
In parallel, therefore light can be by the first polaroid 15, therefore the setting of the first polaroid 15 does not influence the normal aobvious of screen mould group 14
Show.
In addition, LCD screen can absorb the visible light of part, so that being irradiated to 14 another polaroid of screen mould group
The energy of light reduces, to reduce the damage to another polaroid.
In addition, the structure of the virtual reality device is simple, it is only necessary to increase by first polaroid 15 and optical filter 20 i.e.
It can.
In one example, it is the light except 400nm to 700nm that infrared cutoff polaroid, which is configured as cutoff wavelength,
And wavelength is allowed to be that the light within 400nm to 700nm passes through.The infrared cutoff polaroid can effectively cut out visible light with
Outer light, to protect screen mould group 14.
In one example, lens include Fresnel lenses 11.Fresnel lenses 11 are the lens with positive light coke, tool
Have the characteristics that amplification effect is excellent.It includes two significant surface types: towards aspherical 13 and the first polaroid 15 of direction of human eye
Fresnel surface 12.The light pass surface central point in two faces is coaxial.The material of Fresnel lenses 11 can be optics plastic cement, optics glass
Glass or optical resin.The translucent effect of the Fresnel lenses 11 of above-mentioned material is good.Preferably, the material of Fresnel lenses 11
For PMMA (polymethyl methacrylate).The light transmittance of the material is good, and structural strength is high.
Certainly, lens are the common knowledge of this field, and those skilled in the art may set according to actual needs.
Optionally, aspherical 13 radius is 45mm-150mm, and circular cone coefficient is -10-0.In this example embodiment, aspherical 13
Radius be 50mm, circular cone coefficient be -3.
Optionally, the radius of Fresnel surface 12 is 15mm-35mm, and circular cone coefficient is -10-0.In this example embodiment, Fresnel
The radius in face 12 is 29.7mm, and circular cone coefficient is -1.
Optionally, the radius of Fresnel lenses 11 is 30mm-60mm, with a thickness of 3mm-10mm.In this example embodiment, Fresnel
Effective same light aperture of eyeglass 11 is circle, and effective light hole is 24mm.
The translucent effect of said lens is good.
In one example, screen mould group 14 includes the second polaroid 16, LCD screen and third polaroid 17.For example,
LCD screen is LCD screen 18.The resolution ratio of the screen is 2160*2160, and the size of effective display area domain is 60mm*60mm.
LCD screen is between the second polaroid 16 and third polaroid 17.First polaroid 15 is adjacent to the second polaroid 16.At this
In example, the first polaroid 15 it is parallel with the transmission axis direction of the second polaroid 16 through axis direction.In this way, make
It obtains in normal use, the light that screen mould group 14 projects is parallel with the transmission axis direction of the first polaroid 15, and light can be saturating
Cross the first polaroid 15.Optical filter 20 allows visible light to pass through.Therefore, the image of screen mould group 14 can be arrived by eye-observation, be protected
The normal use of virtual reality device is demonstrate,proved.
In one example, infrared cutoff polaroid is located at the close lens one at the midpoint between lens and screen mould group 14
Side.14 side of screen mould group, 15 energy of the first polaroid of this setup are positioned close to compared to by infrared cutoff polaroid
More effectively absorb the light through axis direction perpendicular to the first polaroid 15.
According to another embodiment of the present disclosure, a kind of virtual reality device is provided.As shown in Figure 3-4, virtual reality
Equipment includes lens, optical filter 20 and the screen mould group 14 of coaxial arrangement.Screen mould group 14 includes the second polaroid 16, liquid crystal display
Curtain and third polaroid 17.LCD screen and/or third polaroid 17 are located at the focal position of lens.Second polaroid 16 and
The polarization direction of three polaroids 17 is vertical.LCD screen is between the second polaroid 16 and third polaroid 17.LCD screen
The polarization direction of the light of injection is identical as the polarization direction of the second polaroid 16.Second polaroid 16 is adjacent to lens.By second
Polaroid 16 is towards the mobile set distance of lens, so that the second polaroid 16 and LCD screen are separately, as shown in Figure 3；Or
Second polaroid 16 is moved to the side opposite with LCD screen of lens, as shown in Figure 4.For example, the second polaroid 16 with
Lens are separately.Optical filter 20 fits together with the second polaroid 16, to constitute infrared cutoff polaroid.Third polaroid 17
Neighbouring LCD screen, and form fixation.
As previously mentioned, lens can be, but not limited to, Fresnel lenses 11.The material of Fresnel lenses 11 can be but
It is not limited to PMMA.LCD screen can be, but not limited to, LCD screen 18.Lens, the second polaroid 16, optical filter 20,
The main direction of three polaroids 17 and LCD screen is perpendicular to optical axis.Optical axis is across lens, the second polaroid 16, optical filter
20, the imaginary axis at the center of third polaroid 17 and LCD screen.In the side opposite with LCD screen of third polaroid 17
It is provided with functional module, such as backlight 19, PCB, processor etc..Infrared cutoff polaroid is configured as cutoff wavelength
Light except 400nm to 700nm, and wavelength is allowed to be that the light within 400nm to 700nm passes through.
The relative position of second polaroid 16 and optical filter 20 is it is not limited here.Ambient can first pass through second partially
Mating plate 16 is passing through optical filter 20, or first passes through optical filter 20 using the second polaroid 16.
In the embodiments of the present disclosure, when ambient is injected from lens, the second polaroid 16 is absorbed perpendicular to transmission axis side
To polarised light, and allow to be parallel to polarised light through axis direction through the second polaroid 16.Optical filter 20 can be effectively
End the light other than visible light to penetrate, to reduce the energy of incident light.The visible light projected from infrared cutoff polaroid
Become parallel to the linearly polarized light through axis direction.Infrared cutoff polaroid significantly reduce be incident on LCD screen and/or
The intensity of light on third polaroid 17.The linearly polarized light through axis direction is parallel in LCD screen and/or third polaroid
It is focused on 17.Since the energy intensity of linearly polarized light is lower, LCD screen and/or third polaroid 17 will not be damaged.
The virtual reality device has the characteristics that good tolerance.
In addition, ambient is when through infrared cutoff polaroid, due to not focusing, therefore will not be to the second polaroid 16
It is damaged with optical filter 20, avoids the generation of macula lutea.
In addition, in this example embodiment, it is only necessary to which the position of mobile second polaroid 16 does not need to increase other polarisations
Piece.The structure of virtual reality device is simpler.
In this example embodiment, when passing through third polaroid 17 by the incident light of backlight 19, become linearly polarized light.Line is inclined
When the light that shakes passes through LCD screen 18, since liquid crystal molecule has rotated 90 °, so that linearly polarized light is rotated by 90 °, so when light arrives
Up to before the second polaroid 16, the polarization direction of light wave has rotated 90 ° just.Due to the second polaroid 16 and third polaroid 17
Transmission axis direction it is vertical, therefore light can smoothly pass through the second polaroid 16.Therefore, in normal use process, liquid crystal display
The light that curtain projects is parallel with the polarization direction of the second polaroid 16, therefore light can pass through the second polaroid 16.Optical filter 20 is permitted
Permit light-exposed pass through.Therefore, the mobile normal display for not influencing screen mould group 14 in the position of the second polaroid 16.
For example, the wave-length coverage that optical filter 20 ends is as previously described.
Although being described in detail by some specific embodiments of the example to the utility model, this field
It is to be understood by the skilled artisans that example above merely to be illustrated, rather than in order to limit the scope of the utility model.This
Field it is to be understood by the skilled artisans that can not depart from the scope of the utility model and spirit in the case where, to above embodiments
It modifies.The scope of the utility model is defined by the following claims.
Claims (10)
1. a kind of virtual reality device, which is characterized in that lens, infrared cutoff polaroid and screen mould including coaxial arrangement
Group, the screen mould group are located at the focal position of the lens, and the infrared cutoff polaroid is located at the screen mould group and institute
State between lens, and with the screen mould group separately or the infrared cutoff polaroid be located at the lens with it is described
The opposite side of screen mould group；The infrared cutoff polaroid include the first polaroid and optical filter, first polaroid with
The optical filter fits together.
2. virtual reality device according to claim 1, which is characterized in that the infrared cutoff polaroid is configured as cutting
Only wavelength is the light except 400nm to 700nm, and wavelength is allowed to be that the light within 400nm to 700nm passes through.
3. virtual reality device according to claim 1, which is characterized in that the lens include Fresnel lenses, described
Fresnel lenses include the Fresnel surface being oppositely arranged and aspherical, and the Fresnel surface is towards first polaroid.
4. virtual reality device according to claim 1, which is characterized in that the screen mould group include the second polaroid,
LCD screen and third polaroid, the LCD screen are described between second polaroid and the third polaroid
Second polaroid is adjacent to first polaroid, the transmission through axis direction and second polaroid of first polaroid
Axis direction is parallel.
5. virtual reality device according to claim 1, which is characterized in that the infrared cutoff polaroid is located at described
The close lens side at the midpoint between mirror and the screen mould group.
6. virtual reality device according to claim 1, which is characterized in that the material of the lens is optics plastic cement, light
Learn glass or optical resin.
7. virtual reality device according to claim 1, which is characterized in that first polaroid is located at the optical filter
Between the lens, or the optical filter is between first polaroid and the lens.
8. virtual reality device according to claim 1, which is characterized in that the optical filter is Red lightscreening plate.
9. a kind of virtual reality device, which is characterized in that lens, optical filter and screen mould group including coaxial arrangement, the screen
Curtain mould group includes the second polaroid, LCD screen and third polaroid, and the LCD screen and/or the third polaroid are located at
The focal position of the lens, the LCD screen is between second polaroid and the third polaroid, and described
Two polaroids are adjacent to the lens, by second polaroid towards the mobile set distance of the lens, so that described second is inclined
Mating plate and the LCD screen are separately, or being moved to the lens with the LCD screen phase by second polaroid
Pair side；The optical filter fits together with second polaroid, to constitute infrared cutoff polaroid.
10. virtual reality device according to claim 9, which is characterized in that the infrared cutoff polaroid is configured as
Cutoff wavelength is the light except 400nm to 700nm, and wavelength is allowed to be that the light within 400nm to 700nm passes through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821816294.5U CN209265076U (en) | 2018-11-05 | 2018-11-05 | Virtual reality device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821816294.5U CN209265076U (en) | 2018-11-05 | 2018-11-05 | Virtual reality device |
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| Publication Number | Publication Date |
|---|---|
| CN209265076U true CN209265076U (en) | 2019-08-16 |
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ID=67553849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201821816294.5U Active CN209265076U (en) | 2018-11-05 | 2018-11-05 | Virtual reality device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407314A (en) * | 2018-11-05 | 2019-03-01 | 青岛小鸟看看科技有限公司 | Virtual reality device |
| CN111175982A (en) * | 2020-02-24 | 2020-05-19 | 京东方科技集团股份有限公司 | Near-to-eye display device and wearable equipment |
-
2018
- 2018-11-05 CN CN201821816294.5U patent/CN209265076U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407314A (en) * | 2018-11-05 | 2019-03-01 | 青岛小鸟看看科技有限公司 | Virtual reality device |
| CN109407314B (en) * | 2018-11-05 | 2024-05-28 | 青岛小鸟看看科技有限公司 | Virtual reality device |
| CN111175982A (en) * | 2020-02-24 | 2020-05-19 | 京东方科技集团股份有限公司 | Near-to-eye display device and wearable equipment |
| US12111468B2 (en) | 2020-02-24 | 2024-10-08 | Boe Technology Group Co., Ltd. | Near-to-eye display device and wearable apparatus |
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