CN218675515U - VR glasses - Google Patents

Abstract

The utility model discloses a VR glasses, wherein, VR glasses include casing, display screen, light compensating portion, lens structure and position determination device, light compensating portion locates the casing for to the eye pupil illumination light, lens structure locates the casing for locate the display screen is close to one side of eye pupil; position measurement device is in on being used for using the optical path of eye pupil as luminous object, is used for reflecting according to eye pupil the light of light-compensating portion determines eye pupil position, position measurement device with display screen electric connection, the technical scheme provided by the utility model, through light-radiating on eye pupil of light-compensating portion, position measurement device survey passes through the position at eye pupil place is confirmed to the light that eye pupil reflects for its demonstration adjustment parameter of position adjustment at eye pupil place can be according to the display screen, thereby control display screen work, with provide one kind can adjust the VR glasses that show the picture according to the position of eye pupil.

Description

VR glasses

Technical Field

The utility model relates to the field of optical technology, especially, relate to VR glasses.

Background

Because the VR glasses display the picture mainly through two convex lenses arranged inside. Because there is only one screen, the images seen by the left and right eyes must be separated independently to achieve stereoscopic vision. The 3D glasses can simulate real conditions through an electronic system, so that pictures of the left eye and the right eye are continuously and alternately displayed on a screen, and the physiological characteristics of the persistence of human vision are added, so that the stereoscopic 3D images can be seen.

SUMMERY OF THE UTILITY MODEL

Because the image is a scene simulated by the electronic system, the displayed picture effect and the display information of the VR glasses are closely related to the attention points of the eyes of the user.

The utility model aims at providing a VR glasses aims at providing one kind and can adjust the VR glasses that show the picture according to the position of eye pupil.

In order to achieve the above object, the utility model provides a VR glasses, wherein VR glasses include:

a housing;

a display screen;

a light compensating part provided in the housing and configured to irradiate light to an eye pupil;

the lens structure is arranged on the shell and is used for being arranged on one side, close to the eye pupil, of the display screen; and the number of the first and second groups,

and the position measuring device is positioned on a light path which takes the eye pupil as a light-emitting object and is used for measuring the position of the eye pupil according to the light rays reflected by the eye pupil from the light supplementing part, and the position measuring device is electrically connected with the display screen.

Optionally, the position determination device comprises an image acquisition device for acquiring a light image of the object illuminated by the eye pupil.

Optionally, the lens structure has an object side and an eyepoint side oppositely arranged along the extending direction of the optical axis;

the light compensating part is arranged at the object side or the eyepoint side of the lens structure.

Optionally, the lens structure has an object side and an eyepoint side which are oppositely arranged along an extension direction of an optical axis, the lens structure includes at least one lens on the optical axis, the at least one lens includes a first lens, and a semi-reflective and semi-transparent film is plated on an end surface of the first lens close to an object side;

the position measuring device and the light compensating part are both arranged on the eyepoint side of the lens structure.

Alternatively, the light compensating portion and the position measuring device are disposed on both sides of the optical axis.

Alternatively, the light compensating portion and the position measuring device may be disposed on the same side of the optical axis.

Optionally, the lens structure further comprises a second lens on the optical axis, the second lens being disposed on the eyepoint side of the first lens;

the position measuring device is provided on the eyepoint side of the second lens.

Optionally, the lens structure further includes a third lens on the optical axis, the third lens being disposed between the first lens and the second lens.

Optionally, the first lens is a meniscus lens, and the concave surface of the first lens is arranged towards the eyepoint side;

the second lens is an aspheric lens;

the third lens is a meniscus aspheric lens, and the concave surface of the third lens faces the eye point side.

Optionally, the second lens has an abbe number Vd2 and a refractive index nd2, where Vd2=55, nd2=1.53; and/or the presence of a gas in the gas,

the third lens has an abbe number Vd3 and a refractive index nd3, where Vd3=22 and nd3=1.64.

The utility model provides an among the technical scheme, be provided with lens structure, light supplementation portion and position measurement device in the casing, the position of eye pupil detects through position measurement device, can reflect because of the eye pupil the light of light supplementation portion throw-in eye pupil, position measurement device uses the eye pupil as luminous object to be in on the light path that uses the eye pupil as luminous object, when the display screen was watched to eye pupil takes place to remove, the position and the angle of the light of eye pupil reflection change, shine light on the eye pupil through light supplementation portion, the position at eye pupil place is confirmed through the light of eye pupil reflection to the position measurement device survey, makes the display screen can be according to its demonstration adjustment parameter of position adjustment at eye pupil place, thereby control display screen work, with provide one kind can adjust the VR glasses that show the picture according to the position of eye pupil.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions 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 partial schematic view of VR glasses according to an embodiment of the present invention;

fig. 2 is a partial schematic view of an embodiment of VR glasses provided by the present invention;

fig. 3 is a partial schematic view of an embodiment of VR glasses provided by the present invention;

fig. 4 is a partial schematic view of an embodiment of VR glasses provided by the present invention;

fig. 5 is a partial schematic view of an embodiment of the VR glasses provided by the present invention.

The reference numbers illustrate:

reference numerals	Name(s)	Reference numerals	Name (R)
				100	VR glasses	31	First lens
1	Display screen	32	Second lens
				2	Light compensating part	33	Third lens
3	Lens structure	4	Position measuring device

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 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, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications 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 indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B", including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Because the VR glasses display the picture mainly through two convex lenses arranged inside. Because there is only one screen, the images seen by the left and right eyes must be separated independently to achieve stereoscopic vision. The 3D glasses can simulate real conditions through an electronic system, so that pictures of left and right eyes are continuously and alternately displayed on a screen, and the stereoscopic 3D images can be seen by adding the physiological characteristic of visual persistence of human eyes.

The utility model provides a VR glasses 100, fig. 1 to 5 are the utility model provides a VR glasses 100's specific embodiment.

Referring to fig. 1 and 4, the VR glasses 100 includes a housing (not shown), a display 1, a light compensating portion 2, a lens structure 3, and a position measuring device 4, wherein the light compensating portion 2 is disposed on the housing for irradiating light to an eye pupil, the lens structure 3 is disposed on the housing for being disposed on a side of the display 1 near the eye pupil, the position measuring device 4 is disposed on a light path for irradiating light from the eye pupil to measure the position of the eye pupil, and the position measuring device 4 is electrically connected to the display 1.

The utility model provides an among the technical scheme, be provided with lens structure 3, light filling portion 2 and position measurement device 4 in the casing, the position of eye pupil is detected through position measurement device 4, can reflect because of eye pupil the light of eye pupil is thrown into to light filling portion 2, position measurement device 4 uses the eye pupil as luminous object to be in on the light path that uses the eye pupil as luminous object, when the eye pupil watches display screen 1 and takes place to remove, the position and the angle of the light of eye pupil reflection change, shine light on the eye pupil through light filling portion 2, position measurement device 4 survey the position at eye pupil place is confirmed through the light of eye pupil reflection for display screen 1 can adjust its demonstration adjustment parameter according to the position at eye pupil place, thereby control display screen 1 works, in order to provide one kind and can adjust VR glasses 100 that show the picture according to the position at eye pupil.

It should be noted that, since the VR glasses 100 mainly rely on the electronic system to compose the screen of the display screen 1, it can be understood that the screen area directly corresponding to the eye pupil of the user is the focus of attention of the user, and therefore, the definition of the screen area can be adjusted according to the eye pupil position information of the user. When a user needs to adjust the moving direction of the picture, the moving direction of the picture does not need to be operated by a handheld mouse, the mouse is linked with the position coordinates of the eye pupil, and the electronic system can control the moving direction of the picture of the display screen 1 through the displacement direction of the eye pupil. When the user watches the screen and the user is interested in the picture of some area on the picture, the time for the eye pupil to stay at the position is longer, the picture area on the display screen 1, which is interested by the user, can be calculated through the position information of the eye pupil, and the related picture, namely the picture which is interested by the user, can be automatically pushed according to the picture information of the area by collecting the picture information of the area.

The light compensating portion 2 functions as a light compensating portion, and when the intensity of the light is insufficient, the position measuring device 4 measures the light emitted from the light compensating portion 2 after reflecting the light through the pupil as a main light source, and when the intensity of the light is sufficient, the light compensating portion 2 exists as a light compensating source.

Specifically, the position measuring device 4 may be a sensor, but considering the actual use scene of the user and the difference of the user, the position measuring device 4 is preferably an external device, and in this embodiment, the position measuring device 4 includes an image capturing device for capturing a light image with the eye pupil as the light emitting object. The image acquisition device can be a camera, the spatial coordinates of the eye pupil can be determined through continuous shooting of the camera, the position information of the eye pupil at a certain time point can be obtained, and the information of the change displacement of the eye pupil can be measured, so that the display screen 1 can be conveniently adjusted according to the spatial coordinates.

Specifically, in order to facilitate light supplement by the light supplement part 2, in this embodiment, the lens structure 3 has an object side and an eye point side which are oppositely arranged along an extending direction of an optical axis, and the light supplement part 2 is arranged on the object side or the eye point side of the lens structure 3. In this way, when the light compensating portion 2 is disposed on the eye point side of the lens structure 3, the light compensating portion 2 can directly project light to the eye pupil; when the light compensating portion 2 is disposed on the object side of the lens structure 3, the light compensating portion 2 may indirectly project light to the eye pupil through the lens structure 3.

In an embodiment, the position measuring device 4 is disposed on the object side of the lens structure 3, and the light emitted through the eye pupil is refracted by the lens structure 3 and then projected to the position measuring device 4 to measure the eye pupil position. However, due to the limitation of the space between the end surface of the lens structure 3 close to the object side and the display 1, the position measuring device 4 may affect the thickness of the VR glasses 100.

Specifically, referring to fig. 4, the lens structure 3 has an object side and an eye point side which are oppositely arranged along an extending direction of an optical axis, the lens structure 3 includes at least one lens on the optical axis, the at least one lens includes a first lens 31, a semi-reflective and semi-transparent film is plated on an end surface (i.e., S1) of the first lens 31 close to an object side, and the position measuring device 4 and the light repairing part 2 are both arranged on the eye point side of the lens structure 3. Because the transflective film combines the characteristics of the transmissive lens and the reflective lens, light rays emitted from the eye pupil can be reflected to the eye point side through the transflective film, and the position measuring device 4 can be arranged on the eye point side of the lens structure 3 for the convenience of measurement. With this configuration, the position measuring device 4 can reduce the weight of the VR glasses 100 without increasing the thickness of the VR glasses 100.

In an embodiment, referring to fig. 2, the light compensating portion 2 and the position measuring device 4 are disposed on two sides of the optical axis; in another embodiment, referring to fig. 3, the light compensating portion 2 and the position measuring device 4 are disposed on the same side of the optical axis. The light compensating section 2 may be provided as a light emitting source, and the light compensating section 2 may be provided in a range of the eye sight not blocking the eye pupil and may be configured such that the position measuring device 4 can receive the light reflected by the eye pupil.

Further, the surface shape of any one of the lenses satisfies formula I:

wherein, the parameter c is the curvature corresponding to the radius, y is the radial coordinate (the unit is the same as the unit of the length of the lens), and k is the coefficient of the conic section. When the k coefficient is less than-1, the surface-shaped curve is hyperbolic, when the k coefficient is equal to-1, the curve is parabolic, when the k coefficient is between-1 and 0, the curve is elliptical, when the k coefficient is equal to 0, the curve is circular, and when the k coefficient is greater than 0, the curve is oblate. α 1 to α 8 respectively indicate coefficients corresponding to respective radial coordinates, by which the shape and size of the lens can be accurately set.

Specifically, referring to fig. 5, the lens structure 3 further includes a second lens 32 located on the optical axis, the second lens 32 is disposed on the eye point side of the first lens 31, and the position measuring device 4 is disposed on the eye point side of the second lens 32. The second lens 32 is disposed between the first lens 31 and the position measuring device 4, so that the position measuring device 4 is located at the eye point side of the second lens 32, and the second lens 32 and the first lens 31 cooperate to converge the light emitted from the eye pupil, so that the position measuring device 4 can receive clearer light and position the eye pupil more accurately.

Further, referring to fig. 3, in another embodiment, the lens structure 3 further includes a second lens 32 and a third lens 33 on the optical axis, and the second lens 32, the third lens 33 and the first lens 31 are sequentially distributed from an eye point side to an object side. In a similar manner, the third lens 33, the second lens 32 and the first lens 31 cooperate to converge the light emitted from the eye pupil, so that the position measuring device 4 can receive clearer light and position the eye pupil more accurately, and the three lenses can better eliminate distortion and astigmatism.

Specifically, referring to fig. 1, in a preferred embodiment, the first lens 31 is a meniscus lens, and a concave surface of the first lens 31 is disposed toward an eye point side; the second lens 32 is an aspherical lens; the third lens 33 is a meniscus aspherical lens, and a concave surface of the third lens 33 is disposed toward the eyepoint side.

Specifically, when the light compensating portion 2 is located on the object side of the lens structure 3, a first optical path from the light compensating portion 2 to the eye pupil passes through the first lens 31, the third lens 33 and the second lens 32 in order, and a second optical path from the eye pupil to the first lens and then reflected to the position measuring device 4 passes through the second lens 32, the third lens 33, the first lens 31, the third lens 33 and the second lens 32 in order.

That is, the first optical path passes through the S1 surface, the S2 surface, the S5 surface, the S6 surface, the S3 surface, and the S4 surface in this order, and then the second optical path formed by reflection from the pupil passes through the S4 surface, the S3 surface, the S6 surface, the S5 surface, the S2 surface, the S1 surface, the S2 surface, the S5 surface, the S6 surface, the S3 surface, and the S4 surface in this order. The basic parameter tables of the S1 surface, the S2 surface, the S5 surface, the S6 surface, the S3 surface and the S4 surface on the first optical path are shown in tables 1 to 6.

TABLE 1S1 surface parameters

TABLE 2S2 surface parameters

K	8.290102963
		a1	0
a2	-6.21109E-06
		a3	5.82729E-09
a4	1.98579E-13
		a5	-6.62747E-15
a6	4.45488E-18
		a7	-5.52109E-21
a8	0

TABLE 3S5 surface parameters

K	-19.90326745
		a1	0
a2	-5.00601E-06
		a3	4.07281E-09
a4	-7.38046E-13
		a5	1.38994E-14
a6	1.44559E-18
		a7	9.69944E-21
a8	0

TABLE 4S6 surface parameters

K	20.0000023
		a1	0
a2	-2.95516E-06
		a3	-8.13101E-09
a4	2.01623E-11
		a5	4.67843E-15
a6	1.02105E-19
		a7	9.0501E-21
a8	0

TABLE 5S3 surface parameters

K	0
		a1	0
a2	0
		a3	0
a4	0
		a5	0
a6	0
		a7	0
a8	0

TABLE 6S4 surface parameters

K	19.97383232
		a1	0
a2	4.55673E-06
		a3	2.99273E-09
a4	-6.06829E-11
		a5	1.75401E-13
a6	-1.93253E-17
		a7	-4.78063E-19
a8	0

Specifically, in the first optical path, the surface shape factor of each lens is shown in table 7, where the unit of curvature radius and thickness is millimeters (mm).

TABLE 7 surface shape coefficients corresponding to the lenses on the first optical path

	Surface numbering	Radius of curvature	Spacing or thickness	Material	Half caliber
						0	Light compensating part 2	Unlimited in size	1		21
1	S1	81.822	7.41	K22R	23.5
						2	S2	-114.577	4.02		23.5
3	S5	-117.918	2.70	OKP1	22
						4	S6	434.857	0.93		22
5	S3	183.087	6.37	K22R	22
						6	S4	-103.391	10.00		20.4
7	Eye pupil	Unlimited in size	0		2

The basic parameter tables of the S4 surface, S3 surface, S6 surface, S5 surface, S2 surface, and S1 surface on the second optical path are shown in tables 8 to 13.

TABLE 8S4 surface parameters

TABLE 9S3 surface parameters

K	0
		a1	0
a2	0
		a3	0
a4	0
		a5	0
a6	0
		a7	0
a8	0

TABLE 10S6 surface parameters

K	20.0000023
		a1	0
a2	-2.95516E-06
		a3	-8.13101E-09
a4	2.01623E-11
		a5	4.67843E-15
a6	1.02105E-19
		a7	9.0501E-21
a8	0

TABLE 11S5 surface parameters

TABLE 12S2 surface parameters

K	8.290102963
		a1	0
a2	-6.21109E-06
		a3	5.82729E-09
a4	1.98579E-13
		a5	-6.62747E-15
a6	4.45488E-18
		a7	-5.52109E-21
a8	0

TABLE 13S1 surface parameters

K	-1.45110144
		a1	0
a2	-1.69674E-07
		a3	-1.76687E-10
a4	8.67723E-13
		a5	4.41232E-15
a6	-9.50856E-18
		a7	3.88244E-21
a8	0

Specifically, on the second optical path, the surface shape coefficients corresponding to the respective lenses are shown in table 14, where the radius of curvature and the thickness are both in millimeters (mm).

TABLE 14 surface shape coefficients corresponding to lenses on the second optical path

The first lens 31, the second lens 32 and the third lens 33 are aspheric lenses, which are flatter, thinner and more realistic than spherical lenses. Most VR lenses are aspheric lenses, so that the phenomenon that the picture seen by people is locally deformed and distorted can be restored more truly. The spherical lens generates slight distortion of the object image in the peripheral vision range. And the meniscus aspherical lens can greatly reduce spherical aberration.

Specifically, in one embodiment, the second lens element 32 has an abbe number Vd2, wherein 50 < Vd2 < 60; in another embodiment, the third lens 33 has an abbe number Vd3, wherein 15 < Vd3 < 30. In the present embodiment, the second lens element 32 has an abbe number Vd2, where 50 < Vd2 < 60, preferably Vd2=55.711, and the third lens element 33 has an abbe number Vd3, where 15 < Vd3 < 30 and vd3=22.407, which are set such that the chromatic dispersion of the lens structure 3 is not significant and the imaging quality of the lens barrel is good.

Specifically, in one embodiment, the refractive index of the second lens 32 is nd2, wherein 1.5 < nd2 < 1.55. In another embodiment, the refractive index of the third lens 33 is nd3, wherein 1.6 < nd3 < 1.7. In the present embodiment, the refractive index of the second lens 32 is nd2, wherein 1.5 < nd2 < 1.55, preferably nd2=1.535, and the refractive index of the third lens 33 is nd3, wherein 1.6 < nd3 < 1.7, preferably nd3=1.6422, so as to ensure that the lens structure 3 can be within a limited spatial size within the moving range of the eye pupil, and the light emitted from the eye pupil can be completely projected on the position measuring device 4.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims (10)

1. A VR glasses, comprising:

a housing;

a display screen;

a light compensating part provided in the housing and configured to irradiate light to an eye pupil;

the lens structure is arranged on the shell and is used for being arranged on one side, close to the eye pupil, of the display screen; and the number of the first and second groups,

and the position measuring device is positioned on a light path which takes the eye pupil as a light-emitting object and is used for measuring the position of the eye pupil according to the light rays reflected by the eye pupil from the light supplementing part, and the position measuring device is electrically connected with the display screen.

2. The VR glasses of claim 1, wherein the position determining means includes an image capture device for capturing an image of light emitted from an eye pupil.

3. The VR glasses of claim 1, wherein the lens structure has an object side and an eyepoint side oppositely disposed along a direction of elongation of the optical axis;

the light compensating part is arranged at the object side or the eyepoint side of the lens structure.

4. The VR glasses of claim 3, wherein the lens structure includes at least one lens on the optical axis, the at least one lens including a first lens, and a semi-reflective semi-transparent film is coated on an end surface of the first lens near an object side;

the position measuring device and the light compensating portion are both provided on the eyepoint side of the lens structure.

5. The VR glasses of claim 4, wherein the patch portion and the position-finding device are configured to be disposed on opposite sides of the optical axis.

6. The VR glasses of claim 4, wherein the light patch portion and the position detector are configured to be disposed on a same side of the optical axis.

7. The VR glasses of claim 4, wherein the lens structure further includes a second lens on the optical axis, the second lens disposed on an eyepoint side of the first lens;

the position measuring device is provided on the eyepoint side of the second lens.

8. The VR glasses of claim 7, wherein the lens structure further includes a third lens on the optical axis, the third lens disposed between the first lens and the second lens.

9. The VR glasses of claim 8, wherein the first lens is a meniscus lens, a concave surface of the first lens being disposed toward an eyepoint side;

the second lens is an aspheric lens;

the third lens is a meniscus aspheric lens, and the concave surface of the third lens faces the eye point side.

10. The VR glasses of claim 8, wherein the second lens has an abbe number Vd2 and the second lens has a refractive index nd2, where Vd2=55, nd2=1.53; and/or the presence of a gas in the atmosphere,

the third lens has an abbe number Vd3 and a refractive index nd3, where Vd3=22 and nd3=1.64.

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