CN211506040U - Optical system and virtual reality equipment - Google Patents
Optical system and virtual reality equipment Download PDFInfo
- Publication number
- CN211506040U CN211506040U CN202020413472.0U CN202020413472U CN211506040U CN 211506040 U CN211506040 U CN 211506040U CN 202020413472 U CN202020413472 U CN 202020413472U CN 211506040 U CN211506040 U CN 211506040U
- Authority
- CN
- China
- Prior art keywords
- lens
- optical system
- abs
- display unit
- absolute value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Lenses (AREA)
Abstract
The utility model discloses an optical system and virtual reality equipment, the optical system comprises a display unit, a first lens and a second lens in turn along the light transmission direction; the first lens comprises a first surface facing the display unit and a second surface convex to the second lens; the second lens comprises a third surface concave to the first lens and a fourth surface far away from the first lens; a first phase retarder and a reflective polarizer are arranged on one side, away from the first lens, of the second lens; a light splitter is arranged on one side, close to the display unit, of the first lens; the first surface is of a Fresnel structure. The utility model provides an optical system and virtual reality equipment aims at solving among the prior art because the optical system volume is great, and the volume that leads to virtual reality equipment is great, inconvenient carrying, the problem that the comfort level that the user wore is low.
Description
Technical Field
The utility model relates to an optical imaging technical field especially relates to an optical system and virtual reality equipment.
Background
Along with the development of virtual reality technology, the form and the kind of virtual reality equipment are also increasingly diversified, and the application field is also increasingly extensive, present virtual reality equipment, pass through optical system's transmission and the back of enlargiing with the display screen in the equipment usually, transmit the image of output to people's eye, consequently people's eye receives is the virtual image of display screen after enlargeing, thereby realize the purpose that the large screen was watched through virtual reality equipment, and in order to realize the enlargeing of image, optical system needs the mode of a plurality of lens combinations to realize usually, because the volume is great when a plurality of lens combinations use, and then lead to virtual reality equipment's volume great, not only reduced virtual reality equipment's the convenience of carrying, still reduced the comfort level that the user wore.
SUMMERY OF THE UTILITY MODEL
The utility model provides an optical system and virtual reality equipment aims at solving among the prior art because the optical system volume is great, and the volume that leads to virtual reality equipment is great, inconvenient carrying, the problem that the comfort level that the user wore is low.
In order to achieve the above object, the present invention provides an optical system, which comprises a display unit, a first lens and a second lens in sequence along a light transmission direction;
the first lens comprises a first surface facing the display unit and a second surface convex to the second lens;
the second lens comprises a third surface concave to the first lens and a fourth surface far away from the first lens, and the fourth surface is a plane structure;
a first phase retarder and a reflective polarizer are arranged on one side, away from the first lens, of the second lens, and the first phase retarder is arranged between the second lens and the reflective polarizer;
a light splitter is arranged on one side, close to the display unit, of the first lens;
the first surface is of a Fresnel structure.
Optionally, the optical system further includes a second phase retarder disposed between the display unit and the beam splitter.
Optionally, the optical system satisfies the following relationship: 400< abs (R3) < 500; ABS (consic 3) < 10;
wherein R3 is a radius of curvature of the third surface, and abs (R3) is an absolute value of R3;
the Conic3 is a Conic coefficient of the third surface, and the abs (Conic3) is an absolute value of the Conic 3.
Optionally, the optical system satisfies the following relationship: 200< abs (R2) < 250; ABS (consic 2) < 10;
wherein R2 is the radius of curvature of the second surface, and abs (R2) is the absolute value of R2;
the Conic2 is a Conic coefficient of the second surface, and the abs (Conic2) is an absolute value of the Conic 2.
Optionally, the optical system satisfies the following relationship: 25< abs (R1) < 30; ABS (consic 1) < 10;
wherein R1 is the radius of curvature of the first surface, and abs (R1) is the absolute value of R1;
the Conic1 is a Conic coefficient of the first surface, and the abs (Conic1) is an absolute value of the Conic 1.
Optionally, the optical system satisfies the following relationship: 2.5< T1 is less than or equal to 3.5; 3< T2< 3.5;
wherein the T1 is a center thickness of the first lens and the T2 is a center thickness of the second lens.
Optionally, the optical system satisfies the following relationship: 1< L3< 2; 1< L2< 2; 5< L1< 7;
wherein the L1 is a distance from the display unit to a side surface of the beam splitter near the display unit, the L2 is a distance from a side surface of the beam splitter near the first lens to the first surface, and the L3 is a distance from the second surface to the third surface.
Optionally, the optical system satisfies the following relationship: 2 f < f1<3 f; 40 f < abs (f2) <50 f;
wherein f is a focal length of the optical system, f1 is a focal length of the first lens, f2 is a focal length of the second lens, and abs (f2) is an absolute value of the f 2.
Optionally, the second surface is provided with an antireflection film layer, and an antireflection waveband of the antireflection film layer includes a wavelength of light emitted by the display unit.
To achieve the above object, the present application provides a virtual reality device, which includes a housing and an optical system as described in any one of the above embodiments, wherein the optical system is disposed in the housing.
In the technical scheme provided by the application, the optical system sequentially comprises a display unit, a first lens and a second lens along the light transmission direction; the first lens comprises a first surface facing the display unit and a second surface convex to the second lens; the second lens comprises a third surface concave to the first lens and a fourth surface far away from the first lens; a first phase retarder and a reflective polarizer are arranged on one side, away from the first lens, of the second lens, and the first phase retarder is arranged between the second lens and the reflective polarizer; a light splitter is arranged on one side, close to the display unit, of the first lens; the first surface is of a Fresnel structure. After first light rays emitted by the display unit sequentially pass through the light splitter, the first lens, the second lens and the first phase retarder, the first light rays are converted into first linearly polarized light, the first linearly polarized light is reflected by the reflective polarizer and then sequentially passes through the first phase retarder because the polarization direction of the first linearly polarized light is the same as the reflection direction of the reflective polarizer, the first linearly polarized light is changed into first circularly polarized light under the action of the first phase retarder, the first circularly polarized light is reflected again by the light splitter after passing through the second lens and the first lens and is converted into second circularly polarized light, and the deflection direction of the second circularly polarized light is opposite to the rotation of the first circularly polarized light; the second circularly polarized light passes through the first lens and the second lens once, then passes through the first phase retarder again, and is converted into second linearly polarized light from the second circularly polarized light; and the polarization direction of the second linearly polarized light is the same as the transmission direction of the reflective polarizing plate, so that the second linearly polarized light passes through the reflective polarizing plate, passes through the third lens and is transmitted to the eyes. According to the technical scheme provided by the application, the first lens and the second lens both provide focal power, and the introduction of the optical splitter enables the phase retarder attached to the display unit to be attached to one side of the optical splitter, so that the integration processing of the display unit and the lenses becomes more flexible; in addition, because the second surface is fresnel structure, compare with ordinary spherical lens structure, fresnel structure can effectual reduction the volume and the weight of lens to solve among the prior art because optical system is bulky, lead to the volume of virtual reality equipment great, inconvenient carrying, the problem that the comfort level that the user wore is low.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an optical system according to the present invention;
fig. 2 is a schematic diagram of the optical path of the optical system of the present invention;
fig. 3 is a dot-column diagram of a first embodiment of the optical system of the present invention;
fig. 4 is a graph of field curvature and distortion for a first embodiment of the optical system of the present invention;
fig. 5 is a vertical axis chromatic aberration diagram of the first embodiment of the optical system of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
31 | |
| 20 | |
32 | The |
| 21 | |
40 | |
| 22 | |
||
| 30 | Second lens |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
The utility model provides an optical system and virtual reality equipment.
Referring to fig. 1 and 2, the optical system sequentially includes a display unit 10, a first lens 20 and a second lens 30 along a light transmission direction;
the first lens 20 includes a first surface 21 facing the display unit 10 and a second surface 22 convex to the second lens 30;
the second lens 30 comprises a third surface 31 concave to the first lens 20 and a fourth surface 32 far away from the first lens 20, and the fourth surface 32 is a plane structure;
a first phase retarder and a reflective polarizer are arranged on the side, away from the first lens 20, of the second lens 30, and the first phase retarder is arranged between the second lens 30 and the reflective polarizer;
a beam splitter 40 is arranged on one side of the first lens 20 close to the display unit 10;
the first surface 21 is a fresnel structure.
In a preferred embodiment, the third surface 31 is an aspheric structure, and in a specific embodiment, the aspheric structure can effectively reduce spherical aberration and distortion of the optical system compared with a spherical structure, thereby reducing the number of lenses in the optical system and reducing the size of the lenses.
In a preferred embodiment, the optical splitter 40 may be a spectroscopic film or a spectroscopic device, and when the optical splitter 40 is a spectroscopic film, the spectroscopic film may be disposed on the first surface 21 by a plating or attaching method, and similarly, the polarization reflective film may be disposed on the first surface 21 by a plating or attaching method, and further, the spectroscopic film is a semi-reflective and semi-transmissive film, and a ratio of a transmittance to a reflectance of the semi-reflective and semi-transmissive film is 1:1, it is understood that a light splitting ratio of the spectroscopic film is not limited thereto, and in other embodiments, a ratio of a transmittance to a reflectance of the spectroscopic film may be 4:6 or 3: 7.
In a preferred embodiment, the beam splitter 40 is formed by attaching a splitting film to a flat glass, and when the light emitted by the display unit 10 is linearly polarized light, the linearly polarized light emitted by the display unit 10 can be converted into circularly polarized light by adding a phase retarder on the light emitting side of the display unit 10, specifically, the splitting film is disposed on one side of the flat glass away from the display unit 10, a second phase retarder is disposed on one side of the flat glass close to the display unit 10, and an included angle of 45 degrees is formed between the fast axis direction of the second phase retarder and the polarization direction of the linearly polarized light emitted by the display unit 10. Through the plate glass, more selection realization modes can be obtained when the optical system selects the display unit 10 and the optical element, so that the problem that the proper optical element cannot be selected due to the fact that emergent rays of the display unit 10 do not meet requirements or coating cannot be completed on a lens is solved.
In the technical solution provided in the present application, the optical system sequentially includes a display unit 10, a first lens 20, and a second lens 30 along a light transmission direction; the first lens 20 includes a first surface 21 facing the display unit 10 and a second surface 22 convex to the second lens 30; the second lens 30 comprises a third surface 31 concave towards the first lens 20 and a fourth surface 32 remote from the first lens 20; a first phase retarder and a reflective polarizer are arranged on one side of the second lens 30 away from the first lens 20; a beam splitter 40 is arranged on one side of the first lens 20 close to the display unit 10; the first surface 21 is a fresnel structure. The first light emitted by the display unit 10 sequentially passes through the light splitter 40, the first lens 20, the second lens 30 and the first phase retarder, and then is converted into first linearly polarized light, because the polarization direction of the first linearly polarized light is the same as the reflection direction of the reflective polarizer, the first linearly polarized light is reflected by the reflective polarizer and then sequentially passes through the first phase retarder, the second lens 30 and the first lens 20, and then is reflected by the light splitter 40, the first linearly polarized light is converted into first circularly polarized light under the action of the first phase retarder, and the first circularly polarized light is reflected again by the light splitter 40 after passing through the second lens 30 and the first lens 20, and then is converted into second circularly polarized light from the first circularly polarized light, the deflection direction of the second circularly polarized light is opposite to the rotation property of the first circularly polarized light; the second circularly polarized light passes through the first lens 20 and the second lens 30 once, then passes through the first phase retarder again, and is converted into second linearly polarized light from the second circularly polarized light; and the polarization direction of the second linearly polarized light is the same as the transmission direction of the reflective polarizing plate, so that the second linearly polarized light passes through the reflective polarizing plate, passes through the third lens and is transmitted to the eyes. According to the technical scheme provided by the application, the first lens 20 and the second lens 30 both provide optical power, and the introduction of the optical splitter enables the phase retarder attached to the display unit 10 to be attached to one side of the optical splitter 40, so that the integration processing of the display unit 10 and the lenses becomes more flexible; in addition, because the second surface 22 is a fresnel structure, compare with ordinary spherical lens structure, fresnel structure can effectual reduction the volume and the weight of lens to solve among the prior art because optical system is bulky, lead to the volume of virtual reality equipment great, inconvenient carrying, the problem that the comfort level that the user wore is low.
In an optional embodiment, the optical system further includes a second phase retarder disposed between the display unit 10 and the beam splitter 40, and specifically, when the light emitted from the display unit 10 is linearly polarized light, in order to ensure that the light is reflected in the optical system, the second phase retarder is disposed between the display unit 10 and the first lens 20, so that the linearly polarized light emitted from the display unit 10 is changed into circularly polarized light after passing through the second phase retarder, and the light is changed into the first linearly polarized light after passing through the first phase retarder and is reflected by the reflective polarizer.
In an alternative embodiment, the optical system satisfies the following relationship:
400<abs(R3)<500；ABS(Conic3)<10；
wherein R3 is the radius of curvature of the third surface 31, and abs (R3) is the absolute value of R3;
the Conic3 is a Conic coefficient of the third surface 31, and the abs (Conic3) is an absolute value of the Conic 3. Specifically, the curvature radius is used to represent the degree of curve curvature, and the conic coefficient is used to represent an aspheric conic coefficient in a surface function of an aspheric structure.
In an alternative embodiment, the optical system satisfies the following relationship:
200<abs(R2)<250；ABS(Conic2)<10；
wherein R2 is the radius of curvature of the second surface 22, and abs (R2) is the absolute value of R2;
the Conic2 is a Conic coefficient of the second surface 22, and the abs (Conic2) is an absolute value of the Conic 2.
In an alternative embodiment, the optical system satisfies the following relationship:
25<abs(R1)<30；ABS(Conic1)<10；
wherein R1 is the radius of curvature of the first surface 21, and abs (R1) is the absolute value of R1;
the Conic1 is a Conic coefficient of the first surface 21, and the abs (Conic1) is an absolute value of the Conic 1.
In an alternative embodiment, the optical system satisfies the following relationship:
2.5<T1≤3.5；3<T2<3.5；
wherein the T1 is the center thickness of the first lens 20 and the T2 is the center thickness of the second lens 30.
In an alternative embodiment, the optical system satisfies the following relationship:
1<L3<2；1<L2<2；5<L1<7；
wherein the L1 is a distance from the display unit 10 to a side surface of the beam splitter 40 close to the display unit 10, the L2 is a distance from a side surface of the beam splitter 40 close to the first lens 20 to the first surface 21, and the L3 is a distance from the second surface 22 to the third surface 31.
In an alternative embodiment, the optical system satisfies the following relationship:
2*f<f1<3*f；40*f<abs(f2)<50*f；
wherein f is a focal length of the optical system, f1 is a focal length of the first lens 20, f2 is a focal length of the second lens 30, and abs (f2) is an absolute value of the f 2.
Optionally, the first phase retarder is an 1/4 wave plate, and specifically, the central wavelength of the 1/4 wave plate is the same as the wavelength of the incident light.
First embodiment
In the first embodiment, the design data of the optical system is shown in table 1:
TABLE 1
Wherein, A2 and A4 are used to represent even conic coefficients of aspheric surfaces.
In the first embodiment, the parameters are as follows:
the focal length f of the optical system is 18.69 mm;
the focal length f1 of the first lens 20 is 42.657 mm;
the focal length f2 of the second lens 30 is-837.81 mm;
the radius of curvature R1 of the first surface 21 is-26.05517 mm;
the radius of curvature R2 of the second surface 22 is 215.8382 mm;
the radius of curvature R3 of the third surface 31 is 458.6499 mm;
the thickness T1 of the first lens 20 is 3.009 mm;
the thickness T2 of the second lens 30 is 3.114 mm;
the first surface 21 has a cone coefficient, Conic1, of-1.107;
the second surface 22 has a cone coefficient, Conic2, of 3.286;
the third surface 31 has a Conic coefficient, Conic3, of-9.994;
wherein the first surface 21, the second surface 22 and the third surface 31 are even aspheric structures, wherein the even aspheric structure satisfies the following relationship:
y is the central height of the mirror surface, Z is the position of the aspheric surface structure with the height of Y along the optical axis direction, the surface vertex is taken as the displacement value of the reference distance from the optical axis, C is the vertex curvature radius of the aspheric surface, and K is the cone coefficient; ai represents the i-th aspheric coefficient.
In another embodiment, the second surface 22 and the fourth surface 32 may also be an odd aspheric structure, wherein the odd aspheric structure satisfies the following relationship:
y is the central height of the mirror surface, Z is the position of the aspheric surface structure with the height of Y along the optical axis direction, the surface vertex is taken as the displacement value of the reference distance from the optical axis, C is the vertex curvature radius of the aspheric surface, and K is the cone coefficient; β i represents the i-th aspheric coefficient.
Referring to fig. 3, fig. 3 is a schematic diagram of a first embodiment, in which a plurality of light beams emitted from a point are focused on the same point due to aberration, and a diffusion pattern is formed in a certain range for evaluating the image quality of the projection optical system. In the first embodiment, the maximum value of the image points in the dot column image corresponds to the maximum field of view, and the maximum value of the image points in the dot column image is less than 50 μm.
Referring to fig. 4, fig. 4 is a graph of field curvature and optical distortion of the first embodiment, where the field curvature is used to indicate the position change of the beam image point of different field points from the image plane, and the optical distortion is the vertical axis distance of the intersection point of the principal ray at the dominant wavelength of a certain field and the image plane from the ideal image point; in the first embodiment, the field curvature at both the tangential and sagittal planes is less than ± 1.2mm, and the maximum field curvature difference between the tangential and sagittal planes is less than 1mm, where the maximum distortion is at the maximum field of view < 21.9%.
Referring to fig. 5, fig. 5 is a vertical axis chromatic aberration diagram of the first embodiment, in which the vertical axis chromatic aberration is also called magnification chromatic aberration, mainly referring to a polychromatic main light of an object side, which is dispersed by a refraction system and becomes a plurality of light rays when being emitted from an image side, and a difference value between focal positions of hydrogen blue light and hydrogen red light on an image plane; in the first embodiment, the maximum dispersion of the optical system is the maximum position of the field of view of the optical system, the maximum chromatic aberration value of the optical system is less than 365 μm, and the requirements of users can be met by matching with later software correction.
In the first embodiment, the length of the fourth surface 32 from the display unit 10 to the second lens 30 is 16.2mm, the maximum field angle is 80 degrees, and the spot size of the maximum field of view of the optical system is less than 50 μm, so that clear imaging is ensured, and on the premise of meeting the viewing experience of a user, the volume of the optical system is reduced by folding the optical path, so that the volume and weight of the virtual reality device are reduced, and the use experience of the user is improved.
The utility model discloses still provide a virtual reality equipment, virtual reality equipment includes such as above-mentioned arbitrary embodiment optical system, this optical system's concrete structure refers to above-mentioned embodiment, because this optical system has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. An optical system is characterized by comprising a display unit, a first lens and a second lens in sequence along a light transmission direction;
the first lens comprises a first surface facing the display unit and a second surface convex to the second lens;
the second lens comprises a third surface concave to the first lens and a fourth surface far away from the first lens, and the fourth surface is a plane structure;
a first phase retarder and a reflective polarizer are arranged on one side, away from the first lens, of the second lens, and the first phase retarder is arranged between the second lens and the reflective polarizer;
a light splitter is arranged on one side, close to the display unit, of the first lens;
the first surface is of a Fresnel structure.
2. The optical system of claim 1, further comprising a second phase retarder disposed between the display unit and the beam splitter.
3. The optical system of claim 1, wherein the optical system satisfies the relationship: 400< abs (R3) < 500; abs (conc 3) < 10;
wherein R3 is a radius of curvature of the third surface, and abs (R3) is an absolute value of R3;
the Conic3 is a Conic coefficient of the third surface, and the abs (Conic3) is an absolute value of the Conic 3.
4. The optical system of claim 1, wherein the optical system satisfies the relationship: 200< abs (R2) < 250; abs (conc 2) < 10;
wherein R2 is the radius of curvature of the second surface, and abs (R2) is the absolute value of R2;
the Conic2 is a Conic coefficient of the second surface, and the abs (Conic2) is an absolute value of the Conic 2.
5. The optical system of claim 1, wherein the optical system satisfies the relationship: 25< abs (R1) < 30; abs (conc 1) < 10;
wherein R1 is the radius of curvature of the first surface, and abs (R1) is the absolute value of R1;
the Conic1 is a Conic coefficient of the first surface, and the abs (Conic1) is an absolute value of the Conic 1.
6. The optical system of claim 1, wherein the optical system satisfies the relationship: 2.5< T1 is less than or equal to 3.5; 3< T2< 3.5;
wherein the T1 is a center thickness of the first lens and the T2 is a center thickness of the second lens.
7. The optical system of claim 1, wherein the optical system satisfies the relationship: 1< L3< 2; 1< L2< 2; 5< L1< 7;
wherein the L1 is a distance from the display unit to a side surface of the beam splitter near the display unit, the L2 is a distance from a side surface of the beam splitter near the first lens to the first surface, and the L3 is a distance from the second surface to the third surface.
8. The optical system of claim 1, wherein the optical system satisfies the relationship: 2 f < f1<3 f; 40 f < abs (f2) <50 f;
wherein f is a focal length of the optical system, f1 is a focal length of the first lens, f2 is a focal length of the second lens, and abs (f2) is an absolute value of the f 2.
9. The optical system of any one of claims 1-8, wherein the second surface is provided with an anti-reflection film layer, and an anti-reflection band of the anti-reflection film layer comprises a wavelength of light emitted from the display unit.
10. A virtual reality device comprising a housing and an optical system as claimed in any one of claims 1 to 9 disposed within the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020413472.0U CN211506040U (en) | 2020-03-26 | 2020-03-26 | Optical system and virtual reality equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020413472.0U CN211506040U (en) | 2020-03-26 | 2020-03-26 | Optical system and virtual reality equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211506040U true CN211506040U (en) | 2020-09-15 |
Family
ID=72403233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020413472.0U Active CN211506040U (en) | 2020-03-26 | 2020-03-26 | Optical system and virtual reality equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211506040U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114236829A (en) * | 2021-11-30 | 2022-03-25 | 歌尔光学科技有限公司 | Optical system and head-mounted display equipment |
| CN114236865A (en) * | 2021-11-23 | 2022-03-25 | 青岛歌尔声学科技有限公司 | Optical module and head-mounted display equipment |
-
2020
- 2020-03-26 CN CN202020413472.0U patent/CN211506040U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114236865A (en) * | 2021-11-23 | 2022-03-25 | 青岛歌尔声学科技有限公司 | Optical module and head-mounted display equipment |
| WO2023092710A1 (en) * | 2021-11-23 | 2023-06-01 | 歌尔光学科技有限公司 | Optical module and head-mounted display device |
| CN114236829A (en) * | 2021-11-30 | 2022-03-25 | 歌尔光学科技有限公司 | Optical system and head-mounted display equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110764266B (en) | Optical system and virtual reality equipment | |
| CN212111989U (en) | Optical system and virtual reality equipment | |
| CN112596238B (en) | Imaging optical path and head-mounted display device | |
| CN109765691B (en) | Optical system and display device | |
| CN209858857U (en) | Optical system and virtual reality equipment with same | |
| CN112596240B (en) | Imaging optical path and head-mounted display device | |
| CN214751119U (en) | Optical module and head-mounted display device | |
| CN113219665B (en) | Optical lens group, optical system and head-mounted display device | |
| CN111413799A (en) | Optical system, assembling method and virtual reality equipment | |
| CN211506040U (en) | Optical system and virtual reality equipment | |
| CN116736492B (en) | Optical system and optical apparatus | |
| CN114236863A (en) | Optical module and head-mounted display device | |
| CN113204119A (en) | Cemented lens group and head-mounted display device | |
| CN209728326U (en) | Optical system and virtual reality device with it | |
| CN113219667B (en) | Optical lens group and head-mounted display device | |
| CN111474715A (en) | Optical system and augmented reality device | |
| CN211627942U (en) | Optical system and virtual reality equipment | |
| CN117270220B (en) | Optical imaging device and head-mounted display device | |
| CN211014844U (en) | Optical system and virtual reality equipment | |
| TW463057B (en) | Compact illumination system providing improved field of view for virtual display applications | |
| CN116859562A (en) | Optical module and head-mounted display device | |
| CN212111977U (en) | Optical system and virtual reality equipment | |
| CN115561910A (en) | Near-to-eye display module and head-mounted display equipment | |
| CN212379650U (en) | Optical system and projection apparatus | |
| CN212111990U (en) | Optical system and virtual reality equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201013 Address after: 261031 north of Yuqing street, east of Dongming Road, high tech Zone, Weifang City, Shandong Province (Room 502, Geer electronic office building) Patentee after: GoerTek Optical Technology Co.,Ltd. Address before: Room 401-436, floor 4, building 3, Guozhan Fortune Center, No. 18, Qinling Road, Laoshan District, Qingdao, Shandong Province Patentee before: Qingdao GoerTek Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |