CN108681070A - Optical device - Google Patents
Optical device Download PDFInfo
- Publication number
- CN108681070A CN108681070A CN201810687043.XA CN201810687043A CN108681070A CN 108681070 A CN108681070 A CN 108681070A CN 201810687043 A CN201810687043 A CN 201810687043A CN 108681070 A CN108681070 A CN 108681070A
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- Prior art keywords
- liquid crystal
- polaroid
- light
- optical device
- lens
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a kind of optical devices.The equipment includes lens, light adjusting device and installation position, the installation position is configurable for installation function module, the light adjusting device is configurable for blocking ambient and passes through the lens and to be irradiated in the function module, or reduces across the lens and the intensity of light that is irradiated in the function module.By the way that light adjusting device is arranged, it can effectively stop or weaken the light on lens lighting to function module, avoid energy accumulating, and burn or damage function module.
Description
Technical field
The present invention relates to optical technical fields, more particularly, to a kind of optical device.
Background technology
In existing VR shows equipment, display is divided into left and right two parts, shows what images of left and right eyes was seen respectively
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,
By the image magnification of display.Since by optical system, the visual angle of scene seen by person is bigger, for example, can reach
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 is the same to make one seemingly to watch in reality, usually handle
This experience is known as immersion experience.
However, existing optical lens is a magnifying glass.Under the irradiation of external strong light, lens are by light focusing.It is burnt
Point is fallen on the screen, high temperature is formed in focus, to burn screen.
Accordingly, it is desirable to provide a kind of new technical solution, to solve the above technical problems.
Invention content
It is an object of the present invention to provide a kind of new solutions of optical device.
According to the first aspect of the invention, a kind of optical device is provided.The equipment include lens, light adjusting device and
Installation position, the installation position are configurable for installation function module, and it is outer that the light adjusting device is configurable for blocking
Boundary's light passes through the lens and is irradiated in the function module, or reduces across the lens and be irradiated to the function
The intensity of light in module.
Optionally, further include sensing device further, the sensing device further is configurable for sensing the position of the optical device,
Under conditions of the sensing device senses are removed to the optical device from user's head, the light adjusting device is opened,
To stop ambient across the lens and be irradiated in the function module, or reduces across the lens and be irradiated to
The intensity of light in the function module.
Optionally, the light adjusting device is between the lens and the installation position or the lens are located at
Between the light adjusting device and the installation position.
Optionally, the light adjusting device includes liquid crystal light valve component, and the liquid crystal light valve component includes the first liquid crystal
Module and the first polaroid and the second polaroid along the both sides of optical path direction for being located at first liquid crystal module, institute
The second polaroid is stated between first liquid crystal module and the function module.
Optionally, first polaroid is identical or vertical with the polarization direction of second polaroid.
Optionally, first liquid crystal module is configured as making incident light rotation under conditions of applying setting voltage
It turn 90 degrees.
Optionally, first liquid crystal module is TN type liquid crystal.
Optionally, the function module is LCD LCD screens；Or
The function module is OLED liquid crystal screen curtain, further include setting second polaroid and the function module it
Between quarter-wave plate, polarization direction and the quarter-wave plate of first polaroid and second polaroid
0 optical axis is in 45 ° of angles.
Optionally, the lens, the light adjusting device and the function module are coaxial setting, and three
Main direction is mutually parallel.
Optionally, the light adjusting device is shutter.
Optionally, the function module is display screen, further includes being arranged in second polaroid and the display screen
The second liquid crystal module between curtain, first polaroid are identical with the polarization direction of second polaroid.
Optionally, the long axis direction of the liquid crystal of the long axis direction and the second liquid crystal module of the liquid crystal of first liquid crystal module
Polarization direction with first polaroid is in 45 ° of angles.
Optionally, the lens are Fresnel lenses.
Optionally, the material of the lens is plastics, glass or resin.
It can effectively stop or weaken and wear by the way that light adjusting device is arranged according to one embodiment of the disclosure
The light on lens lighting to function module is crossed, energy accumulating is avoided, and burns or damage function module.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Description of the drawings
It is combined in the description and the attached drawing of a part for constitution instruction shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is the structural schematic diagram of optical device according to an embodiment of the invention.
Fig. 2 is the structural schematic diagram of another optical device according to an embodiment of the invention.
Fig. 3 is the structural schematic diagram of another optical device according to an embodiment of the invention.
Fig. 4 is the structural schematic diagram of shutter according to an embodiment of the invention.
Reference sign：
11：Fresnel lenses；12：First liquid crystal module；13：First polaroid；14：Second polaroid；15：Second liquid crystal
Module；16：LCD LCD screens；17：Quarter-wave plate；18：OLED liquid crystal screen curtain；19：Blade；20：Holder.
Specific implementation mode
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should be noted that：Unless in addition having
Body illustrates that the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
It is illustrative to the description only actually of at least one exemplary embodiment below, is never used as to the present invention
And its application or any restrictions that use.
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.
In shown here and discussion all examples, any occurrence should be construed as merely illustrative, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent attached drawing in a attached drawing.
According to one embodiment of present invention, a kind of optical device is provided.As shown in Figs. 1-2, which can be with
It is, but not limited to, VR equipment, AR equipment etc..It is illustrated by taking VR equipment as an example below.
The optical device includes lens, light adjusting device and installation position.Installation position is configurable for installation function mould
Block.For example, function module is display screen, circuit board, processor etc..In this example embodiment, function module is display screen, such as
LCD screen.Light adjusting device is configurable for blocking ambient and passes through lens and be irradiated in function module, or
It reduces across lens and the intensity of light that is irradiated in function module.
Preferably, lens are Fresnel lenses 11.Fresnel lenses 11 are the lens with positive light coke, have amplification effect
The excellent feature of fruit.It includes two significant surface types：Fei Nie towards the aspherical of human eye direction and towards function module direction
That face.Two faces are coaxial with smooth surface central point.The material of Fresnel lenses 11 can be plastics, glass or resin.Above-mentioned material
The translucent effect of the Fresnel lenses 11 of material is good.Certainly, lens are the common knowledge of this field, and those skilled in the art can be with
It is configured according to actual needs.
Optionally, the aspherical radius of Fresnel lenses 11 is 45mm-150mm, and circular cone coefficient is -10-0.In the example
In son, aspherical radius is=50mm, and circular cone coefficient is -3.
Optionally, the radius of the Fresnel surface of Fresnel lenses 11 is -15mm-35mm, and circular cone coefficient is -10-0.At this
In example, the radius of Fresnel surface is -29.7mm, and circular cone coefficient is -1.
Optionally, 11 bore of Fresnel lenses is 30mm-60mm, thickness 3mm-10mm.Fresnel lenses 11 it is effective
Light hole is circle, radius 24mm.
In embodiments of the present invention, by the way that light adjusting device is arranged, it can effectively stop or weaken across lens
The light being irradiated in function module avoids energy accumulating, and burns or damage function module.
Optionally, light adjusting device is between lens and installation position or lens are located at light adjusting device and peace
Between filling position, as long as can stop or weaken the light on lens lighting to function module.Wherein, when positioned at lens and
When between installation position, light adjusting device not will increase the space of optical device, and the appearance of optical device is good.
In one example, optical device further includes sensing device further.Sensing device further is configurable for sensing optical device
Position.Under conditions of sensing device senses to optical device are removed from user's head, light adjusting device is opened, with blocking
Ambient is passed through and lens and is irradiated in function module, or is reduced across the strong of lens and the light that is irradiated in function module
Degree.
For example, sensing device further includes infrared sensor.The position of the accurate detection human body of infrared sensor energy, so that it is determined that
The position of optical device.
Under conditions of sensing device senses are worn to user's head to optical device, optical device normal use at this time,
Light adjusting device is opened, and the image of display screen curtain can be just commonly seen thereby using family.
Sensor device can effectively improve the degree of automation of optical device, realize the automatic of the protection to function module
Control.
Certainly, sensing device further can also be other equipment, such as pressure sensor etc., those skilled in the art can basis
Actual needs is selected.
In other examples, optical device further includes manual switch.When user removes optical device from head, manually
Switch is closed, to close light adjusting device, to stop or weaken light.Optical device is worn to head in user
When, manual switch is opened, and to open light adjusting device, optical device can be used normally in user.
In other examples, optical device further includes microswitch.Optical device will be taken from head in user in user
When lower, microswitch bounces automatically, to close light adjusting device, to stop or weaken light.In user by optical device
When being worn to head, microswitch is pressed, and to open light adjusting device, optical device can be used normally in user.
Microswitch and manual switch are physical switch, while it is desirable to touching or pressing, but its durability and reliability
It is high.
In one example, light adjusting device includes liquid crystal light valve component.Liquid crystal light valve component includes the first liquid crystal mould
Group 12 and the first polaroid 13 and the second polaroid 14 along the both sides of optical path direction for being located at the first liquid crystal module 12.
Second polaroid 14 is between the first liquid crystal module 12 and function module.Apply voltage to liquid crystal module by first or breaks
Electricity controls the polarization of liquid crystal, to make incident light deflection or directly pass through.Ambient sequentially passes through the first polarisation
Piece 13, the first liquid crystal module 12 and the second polaroid 14, to effectively be weakened or be stopped.Preferably, the first liquid crystal mould
Group 12 is TN type liquid crystal.The liquid crystal of this type derives from a wealth of sources, at low cost.
Preferably, effective hole of the first liquid crystal module 12, the first polaroid 13 and the second polaroid 14 is circle.Pass through this
Kind mode, liquid crystal light valve component can form the ambient from all angles blocking or weaken.For example, effective hole
Radius is 27mm.
Preferably, the first polaroid 13 is identical or vertical with the polarization direction of the second polaroid 14.In this example embodiment, it shows
Display screen curtain is LCD LCD screens 16.LCD LCD screens 16 can send out linearly polarized light.
The optical axis direction of the liquid crystal of first liquid crystal module 12 and with the first polaroid 13 at 45 degree.In 13 He of the first polaroid
Under the conditions of the polarization direction of second polaroid 14, in the closing of VR equipment or dormant state, the first liquid crystal module 12 is not applied
Making alive, liquid crystal do not polarize.When ambient is injected, become linearly polarized light in the first polaroid 13, then passes through the first liquid
Brilliant module 12.The liquid crystal of first liquid crystal module 12 has rotation effect, incident ray can be made to deflect, and then weakens across the
The light of two polaroids 14.Preferably, the first liquid crystal module 12 is configured as under conditions of applying setting voltage, making incident light
Line is rotated by 90 °, so that incident ray can be ended by the second polaroid 14.In this way, liquid crystal light valve component, which is in, closes shape
State can effectively stop that ambient is injected.
In VR opening of device, the first liquid crystal module 12 is applied in voltage, and the first liquid crystal module 12 polarizes at this time.Linear polarization
Light is sent out from display screen, into the second polaroid 14.Then, linearly polarized light enters the first liquid crystal module 12, due to being applied
Making alive event the first liquid crystal module 12 polarization, therefore rotation effect is not will produce, therefore the polarization direction of incident ray does not rotate, directly
It connects from the first polaroid 13 and projects.User is it is observed that show the image of screen.
In the case that the polarization direction of the first polaroid 13 and the second polaroid 14 is vertical, in 12 quilt of the first liquid crystal module
When applying voltage, liquid crystal light valve component is closed, and to stop that ambient enters, the first liquid crystal module 12 is not applied to voltage
When, liquid crystal light valve component is opened, can normal use optical device thereby using family.
In another example, display screen is OLED liquid crystal screen curtain 18.OLED liquid crystal screen curtain 18 can send out circular polarization
Light.For example, the resolution ratio of OLED liquid crystal screen curtain 18 is 2160*2160, effective display area domain sizes are 60mm*60mm.OLED liquid
The polarization direction of the emergent light of brilliant screen 18 is parallel with the polarization direction of the first polaroid 13.
In this example embodiment, optical device further includes the quarter-wave being arranged between the second polaroid 14 and function module
Piece 17.Quarter-wave plate 17 is used to the circularly polarized light that OLED liquid crystal screen curtain 18 is sent out being converted to linearly polarized light.First polarisation
0 optical axis of the polarization direction of piece 13 and the second polaroid 14 and quarter-wave plate 17 is in 45 ° of angles.
By taking the first polaroid 13 is identical with the polarization direction of the second polaroid 14 as an example.In VR opening of device, the first liquid
Brilliant module 12 is applied in voltage, liquid crystal polarization.Circular polarization light is sent out from OLED liquid crystal screen curtain 18, into quarter-wave plate
17, at this time circularly polarized light be converted into linearly polarized light.Linearly polarized light enters the second polaroid 14, subsequently into the first liquid crystal module
12, since the first liquid crystal module 12 is applied in voltage and polarize, therefore rotation effect is not generated, therefore the polarization of incident ray
Direction does not rotate, directly from the first polaroid 13 project, user can normal observation to show screen image.It is closed in VR equipment
When closing, liquid crystal light valve component is closed, to stop ambient incidence.
In one example, lens, light adjusting device and function module, such as display screen are coaxial setting, and
And the main direction of three is mutually parallel.Coaxial setting refers to that the geometric center of three is located on the same line.Pass through this side
Formula, light adjusting device can form effective ground resistance gear to the ambient from different directions or weaken.
Certainly, even if there are can stop or weaken ambient if installation error for the relative position of three.
For the VR equipment of replaceable display screen, the polarization direction that different LCD screens emit beam is inconsistent
's.On the basis of the short side of LCD screen, there are ± 45 °, 0 °, 90 ° are waited linearly polarized lights, non-linear polarization light, such as full wave circle
There are the elliptically polarized lights of polarization state difference for polarised light and different-waveband.The light that the LCD screen of different polarization states is sent out passes through
After liquid crystal light valve component, it is difficult to ensure that light can be normal through, to make light emission rate reduce, the matter for the image that user sees
Amount declines.
To solve the above-mentioned problems, in one example, as shown in figure 3, optical device further includes being arranged in the second polarisation
The second liquid crystal module 15 between piece 14 and display screen.First polaroid 13 is identical with the polarization direction of the second polaroid 14.
In this example embodiment, the first polaroid 13 and the first liquid crystal module 12 constitute liquid crystal cut out tab together.Second polaroid 14 and second
Liquid crystal module 15 constitutes liquid crystal compensation piece together.The long axis direction of the liquid crystal of first liquid crystal module 12 and the second liquid crystal module 15
The polarization direction of the long axis direction of liquid crystal and the first polaroid 13 is in 45 ° of angles.
In this example embodiment, when VR opening of device, linear polarization light is sent out from screen, into liquid crystal compensation piece.According to liquid crystal
The polarization state that screen emits beam makes a choice to liquid crystal compensation piece：In the polarization state of polarization of light state and the second polaroid 14
In the case of parallel, the second liquid crystal module 15 does not apply voltage, at this point, the liquid crystal molecule of the second liquid crystal module 15 does not rotate.By
There is optical activity in the liquid crystal of the second liquid crystal module 15, revolved so that light retrodeviates polarization state by the second liquid crystal module 15
Turn, light after the second polaroid 14 by projecting；In the polarization state of the light situation parallel with the polarization state of the second polaroid 14
Under, the second liquid crystal module 15 applies voltage, and the liquid crystal of the second liquid crystal module 15 loses optical activity at this time.Light passes through the second liquid crystal
It does not change after module 15 and is projected from the second polaroid 14.Light subsequently enters liquid crystal cut out tab, at this point, the first liquid crystal mould
Group 12 applies voltage and rotates, from without optical activity.After the first liquid crystal module 12, polarization of light direction is not
Become, and is projected from the first polaroid 13.In this way, compensating plate can effectively improve light extraction efficiency, to improve
The quality of image.
In VR opening of device, polarization light is sent out from screen, into compensating plate.It is emitted beam according to LCD screen inclined
Polarization state makes a choice to liquid crystal compensation piece：In polarization of light state and the second polaroid 14 as circularly polarized light, or it is inclined for line
Shake light and and the second polaroid 14 direction at 45 degree of angles in the case of, the liquid crystal of liquid crystal compensation piece does not apply voltage, therefore liquid crystal
Molecule does not rotate, and liquid crystal has optical activity at this time.Light is rotated by polarization of light state after the second liquid crystal module 15, passes through liquid crystal
After compensating plate, 50% energy of light losing.Light subsequently enters liquid crystal cut out tab, and the first liquid crystal module 12 applies voltage, makes liquid
Crystalline substance rotation, the first liquid crystal module 12 is without optical activity at this time, and after light passes through the first liquid crystal module 12, polarization direction is constant,
And it is projected from the first polaroid 13.
When VR equipment is closed, the first liquid crystal module 12 of liquid crystal cut out tab does not apply voltage, the first liquid crystal module 12
Liquid crystal has optical activity.When ambient is injected, by the first polaroid 13, extraneous right light certainly becomes linearly polarized light.Light
After the first liquid crystal module 12, polarization direction is rotated by 90 ° line.Then, ended by the second polaroid 14.Due to liquid crystal compensation
Piece is not on the focal plane of lens, so light does not converge, and then can not injure compensating plate.
Preferably, the first polaroid 13 and effective light hole of the first liquid crystal module 12 are circle.Effective aperture is 30mm-
70mm.The thickness of first liquid crystal module 12 is 0.5mm-5mm.In this way, the image that user observes is apparent, picture quality is good.
Preferably, the second polaroid 14 and effective light hole of the second liquid crystal module 15 are circle, effective aperture 30mm-
70mm.The thickness of second liquid crystal module 15 is 0.5mm-5mm.
In this embodiment, a diameter of 55mm of the second polaroid 14.A diameter of 55mm of second liquid crystal module 15, thickness
For=1mm.A diameter of 50mm of first polaroid 13.A diameter of 50mm of first liquid crystal module 12, thickness 1mm.
Preferably, the Fresnel surface of Fresnel lenses 11 and the first polaroid 13 are apart from for 0.5mm-30mm.In the example
In, which is=5mm.
Preferably, the surface of the close display screen of the first liquid crystal module 12 is 0.5mm- at a distance from the second polaroid 14
30mm.In this example embodiment, which is=5mm.
Preferably, the surface of the close display screen of the first liquid crystal module 12 is at a distance from the surface of display screen
0.5mm-40mm.In this example embodiment, which is 25mm.
In one example, light adjusting device is shutter.As shown in figure 4, for example, shutter includes holder 20 and blade
19.The middle part of holder 20 forms through-hole.Multiple blades 19 are rotatably arranged on holder 20, and are set uniformly around through-hole
It sets.Multiple blades 19 rotate around respective shaft, to be turned on or off through-hole.The ambient when through-hole is closed
It can not pass through, to cause to damage to function module；When through-hole is opened, user being capable of normal use VR equipment.
Certainly, light adjusting device is not limited to the above embodiments, and those skilled in the art can carry out according to actual needs
Setting.
Although some specific embodiments of the present invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to illustrating, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above example.This hair
Bright range is defined by the following claims.
Claims (14)
1. a kind of optical device, which is characterized in that including lens, light adjusting device and installation position, the installation position is configured
To be used for installation function module, the light adjusting device is configurable for blocking ambient and passes through the lens and irradiate
Onto the function module, or reduce across the lens and the intensity of light that is irradiated in the function module.
2. optical device according to claim 1, which is characterized in that further include sensing device further, the sensing device further by with
It is set to the position for sensing the optical device, is removed to the optical device from user's head in the sensing device senses
Under conditions of, the light adjusting device is opened, to stop ambient across the lens and be irradiated to the function module
On, or reduce across the lens and the intensity of light that is irradiated in the function module.
3. optical device according to claim 1, it is characterised in that, the light adjusting device is located at the lens and institute
It states between installation position or the lens is between the light adjusting device and the installation position.
4. optical device according to claim 1, it is characterised in that, the light adjusting device includes liquid crystal light valve arrays
Part, the liquid crystal light valve component include the first liquid crystal module and be located at first liquid crystal module along optical path direction
The first polaroid and the second polaroid of both sides, second polaroid are located at first liquid crystal module and the function module
Between.
5. optical device according to claim 4, it is characterised in that, first polaroid and second polaroid
Polarization direction is identical or vertical.
6. optical device according to claim 4, it is characterised in that, first liquid crystal module is configured as setting in application
Under conditions of constant voltage, incident light is made to be rotated by 90 °.
7. optical device according to claim 6, it is characterised in that, first liquid crystal module is TN type liquid crystal.
8. optical device according to claim 4, it is characterised in that, the function module is LCD LCD screens；Or
The function module is OLED liquid crystal screen curtain, further includes being arranged between second polaroid and the function module
0 light of the polarization direction and the quarter-wave plate of quarter-wave plate, first polaroid and second polaroid
Axis is in 45 ° of angles.
9. optical device according to claim 1, it is characterised in that, the lens, the light adjusting device and institute
It is coaxial setting to state function module, and the main direction of three is mutually parallel.
10. optical device according to claim 1, it is characterised in that, the light adjusting device is shutter.
11. optical device according to claim 1, which is characterized in that the function module is display screen, further includes setting
The second liquid crystal module between second polaroid and the display screen is set, first polaroid and described second is partially
The polarization direction of mating plate is identical.
12. optical device according to claim 11, it is characterised in that, the long axis side of the liquid crystal of first liquid crystal module
The polarization direction of long axis direction and first polaroid to the liquid crystal with the second liquid crystal module is in 45 ° of angles.
13. optical device according to claim 1, it is characterised in that, the lens are Fresnel lenses.
14. optical device according to claim 1, it is characterised in that, the material of the lens is plastics, glass or tree
Fat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810687043.XA CN108681070A (en) | 2018-06-28 | 2018-06-28 | Optical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810687043.XA CN108681070A (en) | 2018-06-28 | 2018-06-28 | Optical device |
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| Publication Number | Publication Date |
|---|---|
| CN108681070A true CN108681070A (en) | 2018-10-19 |
Family
ID=63812569
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810687043.XA Pending CN108681070A (en) | 2018-06-28 | 2018-06-28 | Optical device |
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| CN109407314A (en) * | 2018-11-05 | 2019-03-01 | 青岛小鸟看看科技有限公司 | Virtual reality device |
| CN112162474A (en) * | 2020-09-07 | 2021-01-01 | 常州工学院 | Compact near-to-eye augmented reality holographic three-dimensional display device |
| CN114442326A (en) * | 2022-02-11 | 2022-05-06 | 惠州Tcl移动通信有限公司 | Optical imaging system |
| CN116699854A (en) * | 2023-07-27 | 2023-09-05 | 北京极溯光学科技有限公司 | Perspective optical system and equipment capable of realizing display shielding |
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| CN112162474A (en) * | 2020-09-07 | 2021-01-01 | 常州工学院 | Compact near-to-eye augmented reality holographic three-dimensional display device |
| CN114442326A (en) * | 2022-02-11 | 2022-05-06 | 惠州Tcl移动通信有限公司 | Optical imaging system |
| CN116699854A (en) * | 2023-07-27 | 2023-09-05 | 北京极溯光学科技有限公司 | Perspective optical system and equipment capable of realizing display shielding |
| CN116699854B (en) * | 2023-07-27 | 2023-10-03 | 北京极溯光学科技有限公司 | Perspective optical system and equipment capable of realizing display shielding |
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