CN213092016U - Virtual reality display device - Google Patents
Virtual reality display device Download PDFInfo
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- CN213092016U CN213092016U CN202021673879.3U CN202021673879U CN213092016U CN 213092016 U CN213092016 U CN 213092016U CN 202021673879 U CN202021673879 U CN 202021673879U CN 213092016 U CN213092016 U CN 213092016U
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Abstract
The utility model discloses a virtual reality display device relates to virtual reality equipment technical field. The virtual reality display device comprises a shell, a display screen, an optical lens, a light source, a shooting module and a light reflection element. Display screen, optical lens, light source and shooting module all set up in the casing, and display screen and optical lens set up relatively, and the shooting module is used for gathering the iris image of people's eye. The light reflection element is arranged between the display screen and the optical lens, the shooting end of the shooting module faces the light reflection element, and the light source is arranged in a non-imaging light path area between the light reflection element and human eyes. This virtual reality display device can effectually gather user's iris when not shielding normal optical imaging light path of influence for the user has higher security and convenience when using this virtual reality display device to carry out account number login, the demand such as payment of iris discernment, and has guaranteed the privacy demand of unblock encryption when using to log in.
Description
Technical Field
The utility model relates to a virtual reality equipment technical field especially relates to a virtual reality display device.
Background
In recent years, the development of virtual reality technology is rapid, and virtual reality equipment, such as VR glasses and the like, is greatly popularized. However, with the widespread use of virtual reality devices, the demands of customers on the experience are more diversified and personalized, such as the security demands when paying through the virtual reality devices, the privacy demands when unlocking the encryption when the applications log in, and the like.
Iris recognition technology is one of the human biometric recognition technologies. The highly unique, stable and unalterable nature of the iris is the material basis on which the iris can be used for identity authentication. The virtual reality display device developed by combining the iris recognition technology and the virtual reality technology in the prior art is low in safety and cannot meet the requirements of users on high safety and privacy.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a virtual reality display device, this virtual reality display device can satisfy the demand of user's security and privacy.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a virtual reality display device, includes casing, display screen, optical lens, light source and shoots the module, the display screen optical lens the light source with it all sets up to shoot the module in the casing, the display screen with optical lens sets up relatively, it is used for gathering the iris image of people's eye to shoot the module, and it still includes the light reflex component, the light reflex component set up in the display screen with between the optical lens, the shooting end orientation of shooting the module the light reflex component, the light source set up in non-formation of image light path region between light reflex component and people's eye.
Optionally, the light reflection element is a film layer that reflects light of the light source and transmits visible light, and the film layer is disposed on the planar substrate.
Optionally, an optical assembly is disposed at the emitting end of the light source, and an optical axis O of the optical assembly3G3And the optical axis O of the optical lens1G1And the optical component can parallelize the scattered light emitted by the light source.
Optionally, the preset included angle β satisfies the following formulaFormula (II): sin (beta)<(D0*F)/(L0*Deye) Wherein D is0Is the diameter of the emitting end of the optical assembly, F is the focal length of the optical lens, and L is0Is the distance of the optical lens to the human eye, DeyeIs the diameter of the pupil of the human eye.
Optionally, the light reflecting element comprises a grating structure having a diffractive effect on the light waves emitted by the light source, being transmissive to visible light and having no diffractive effect.
Optionally, the grating constant d of the grating structure satisfies the following formula: d ═ K × λ/[ sin (β - γ) + sin (γ)]Wherein K is the grating diffraction order of the grating structure, λ is the dominant wavelength of the light wave of the light source, and γ is the grating normal ON of the grating structure and the optical axis O of the optical lens1G1The included angle therebetween.
Optionally, the shooting optical axis O of the shooting module2G2And an optical axis O of the optical lens1G1The included angle alpha satisfies: 40 degree<α<50°。
Optionally, the light source is an infrared light source.
Optionally, the optical surfaces on both sides of the optical lens are provided with infrared antireflection films.
Optionally, the optical lenses are arranged in two, and the light source is arranged in the non-imaging light path region between the two optical lenses.
The utility model has the advantages that:
the utility model provides a virtual reality display device through set up the light reflection component between display screen and optical lens, will shoot the shooting end orientation light reflection component of module, and the light source sets up in the non-image light path region between light reflection component and people's eye. This virtual reality display device can effectually gather user's iris when not shielding normal optical imaging light path of influence for the user has higher security and convenience when using this virtual reality display device to carry out account number login, the demand such as payment of iris discernment, and has guaranteed the privacy demand of unblock encryption when using to log in.
Drawings
Fig. 1 is a schematic structural diagram of a virtual reality display device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a virtual reality display device according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a virtual reality display device according to a third embodiment of the present invention.
The labels in the figure are:
1. a display screen; 2. an optical lens; 3. a light source; 4. a shooting module; 5. a light reflecting element; 6. an optical assembly.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The first embodiment is as follows:
as shown in fig. 1, this embodiment provides a virtual reality display device, including casing (not shown in the figure), display screen 1, optical lens 2, light source 3, shoot module 4 and light reflection component 5, display screen 1, optical lens 2, light source 3 and shooting module 4 all set up in the casing, display screen 1 and optical lens 2 set up relatively, it is used for gathering the iris image of people's eye to shoot module 4, light reflection component 5 sets up between display screen 1 and optical lens 2, shoot module 4's shooting end towards light reflection component 5, light source 3 sets up in the non-image light path region between light reflection component 5 and people's eye.
The virtual reality display device provided by the embodiment is characterized in that the light reflection element 5 is arranged between the display screen 1 and the optical lens 2, the shooting end of the shooting module 4 faces the light reflection element 5, and the light source 3 is arranged in a non-imaging light path area between the light reflection element 5 and human eyes. This virtual reality display device can effectually gather user's iris when not shielding normal optical imaging light path of influence for the user has higher security and convenience when using this virtual reality display device to carry out account number login, the demand such as payment of iris discernment, and has guaranteed the privacy demand of unblock encryption when using to log in.
Optionally, the light reflection element 5 is a film layer that reflects light of the light source 3 and transmits visible light, and the film layer is disposed on the planar substrate. Specifically, the light source 3 is an infrared light source. In this embodiment, the infrared light source is an infrared LED. The plane substrate is a transparent glass plate, a film layer which reflects infrared light and transmits visible light is arranged on the transparent glass plate to form a light reflection element 5, then the light reflection element 5 is arranged on one side of the display screen 1 close to the optical lens 2, and the light reflection element 5 does not influence a normal optical imaging light path and reflects infrared light. The infrared light source 3 enters the shooting module 4 after being reflected by the human eyes and the film layer, and the shooting module 4 collects iris images of the human eyes. Of course, in other embodiments, the film-fixed transparent glass plate may be disposed between the display screen 1 and the optical lens 2, and the light source 3 may be disposed in the non-imaging light path region between the film-fixed transparent glass plate and the optical lens 2; the shooting module 4 is arranged in a non-imaging light path area between the transparent glass plate fixed with the film layer and the optical lens 2 and is close to the side wall of the shell.
In another optional embodiment of the present invention, the film layer for reflecting light from the light source 3 and transmitting visible light can be directly fixed on the side of the display screen 1 close to the optical lens 2.
Preferably, the photographing optical axis O of the photographing module 42G2And the optical axis O of the optical lens 21G1The included angle alpha satisfies: 40 degree<α<50 degrees. If the included angle α is not within the range, the iris of the human eye may not be acquired by the photographing module 4.
Alternatively, the optical lenses 2 are provided in two, and the light source 3 is provided in a non-imaging optical path region between the two optical lenses 2. In this embodiment, the infrared light source is disposed in a non-imaging light path region between the two optical lenses 2, as shown by a dotted line in fig. 1, infrared light emitted by the infrared light source irradiates eyes of a user, infrared light beams reflected by the eyes are reflected by the optical lenses 2 and then reflected by the light reflection element 5 to enter the photographing module 4, and the photographing module 4 collects iris images of the eyes. The infrared light source can be set to one, also can set up a plurality ofly, and a plurality of infrared light sources evenly set up, can make the infrared light of shining into user's eyes more even.
In this embodiment, the photographing module 4 is provided as one, and one photographing module 4 is located in a non-imaging optical path region near a side wall of the housing, and is used for photographing an iris image of one eye of the user. Of course, in other embodiments, two shooting modules 4 may be provided, and the two shooting modules 4 are respectively provided at two sides of the display screen 1 and are respectively used for shooting a single iris image of the left eye and the right eye of the user.
Optionally, the optical surfaces on both sides of the optical lens 2 are provided with infrared antireflection films. The infrared antireflection films are arranged on the optical surfaces on the two sides of the optical lens 2, so that the phenomenon that infrared light beams emitted by the infrared light source 3 enter the shooting module 4 after being reflected by the optical lens 2, and the interference on shot iris images is caused is avoided.
Example two:
the difference between this embodiment and the first embodiment is:
as shown in fig. 2, the light source 3 of the present embodiment is disposed in the non-imaging optical path region between the light reflection element 5 and the optical lens 2, and is disposed near the side wall of the housing, and the light source 3 and the camera module 4 are disposed on the same side of the display screen 1. As shown by a dotted line in fig. 2, infrared light emitted by the infrared light source 3 is reflected by the light reflection element 5 and then converged to human eyes by the optical lens 2, infrared light beams reflected by the human eyes are reflected by the optical lens 2 and then reflected by the light reflection element 5 to enter the shooting module 4, and the shooting module 4 collects iris images of the human eyes.
Example three:
the difference between this embodiment and the second embodiment is:
as shown in fig. 3, in the present embodiment, the emitting end of the light source 3 is provided with the optical assembly 6, and the optical axis O of the optical assembly 63G3And the optical axis O of the optical lens 21G1The optical assembly 6 can parallelize the scattered light emitted from the light source 3 by forming a predetermined included angle β. Specifically, the preset included angle β satisfies the following formula: sin (beta)<(D0*F)/(L0*Deye) Wherein D is0Is the diameter of the exit end of the optical assembly 6, F is the focal length of the optical lens 2, L0Distance of the optical lens 2 to the human eye, DeyeIs the diameter of the pupil of the human eye. In the present embodiment, the optical unit 6 is composed of a plurality of optical elements, so that the optical unit 6 can parallelize the scattered light emitted from the light source 3. The optical assembly 6 is arranged to emit infrared lightThe output scattered light is parallelized, and the utilization rate of the infrared light source is improved. It should be noted that it is known in the art to combine a plurality of optical elements into an optical assembly 6 capable of parallelizing the scattered light emitted from the light source 3, and therefore, the description thereof is omitted here.
Preferably, the light reflecting element 5 comprises a grating structure having a diffractive effect on the light waves of the light source 3, being transmissive for visible light and having no diffractive effect. Specifically, the grating constant d of the grating structure satisfies the following formula: d ═ K × λ/[ sin (β - γ) + sin (γ)]Wherein K is the grating diffraction order of the grating structure, λ is the dominant wavelength of the light wave of the light source 3, and γ is the grating normal ON of the grating structure and the optical axis O of the optical lens 21G1The included angle therebetween. The grating structure with diffraction effect on the infrared light source can also improve the utilization rate of the infrared light source.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. The utility model provides a virtual reality display device, includes casing, display screen (1), optical lens (2), light source (3) and shoots module (4), display screen (1) optical lens (2) light source (3) with shoot module (4) all set up in the casing, display screen (1) with optical lens (2) set up relatively, it is used for gathering the iris image of people's eye to shoot module (4), its characterized in that still includes light reflection component (5), light reflection component (5) set up in display screen (1) with between optical lens (2), the shooting end orientation of shooting module (4) light reflection component (5), light source (3) set up in non-imaging optical path region between light reflection component (5) and the people's eye.
2. The virtual reality display device of claim 1, wherein the light reflecting element (5) is a film layer that reflects light from the light source (3) and transmits visible light, and the film layer is disposed on a planar substrate.
3. The virtual reality display apparatus according to claim 2, wherein the output end of the light source (3) is provided with an optical assembly (6), and an optical axis O of the optical assembly (6)3G3And the optical axis O of the optical lens (2)1G1And a preset included angle beta is formed, and the optical assembly (6) can parallelize the scattered light emitted by the light source (3).
4. The virtual reality display device of claim 3, wherein the preset included angle β satisfies the following formula: sin (beta)<(D0*F)/(L0*Deye) Wherein D is0Is the diameter of the exit end of the optical component (6), F is the focal length of the optical lens (2), L0Is the distance of the optical lens (2) to the human eye, DeyeIs the diameter of the pupil of the human eye.
5. The virtual reality display device according to claim 4, wherein the light reflecting element (5) comprises a grating structure having a diffractive effect on the light waves emitted by the light source (3), being transmissive for visible light and having no diffractive effect.
6. The virtual reality display device of claim 5, wherein the grating constant d of the grating structure satisfies the following formula: d ═ K × λ/[ sin (β - γ) + sin (γ)]Wherein K is the grating diffraction order of the grating structure, lambda is the dominant wavelength of the light wave of the light source (3), and gamma is the grating normal ON of the grating structure and the optical axis O of the optical lens (2)1G1The included angle therebetween.
7. The virtual reality display device of any one of claims 1 to 6, wherein the shooting optical axis O of the shooting module (4)2G2And the optical axis O of the optical lens (2)1G1The included angle alpha satisfies: 40 degree<α<50°。
8. The virtual reality display device of any one of claims 1-6, wherein the light source (3) is an infrared light source.
9. The virtual reality display device of claim 8, wherein optical surfaces on both sides of the optical lens (2) are provided with infrared antireflection films.
10. The virtual reality display device according to claim 1, wherein the optical lenses (2) are provided in two, and the light source (3) is provided in the non-imaging optical path region between the two optical lenses (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021673879.3U CN213092016U (en) | 2020-08-12 | 2020-08-12 | Virtual reality display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021673879.3U CN213092016U (en) | 2020-08-12 | 2020-08-12 | Virtual reality display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213092016U true CN213092016U (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021673879.3U Active CN213092016U (en) | 2020-08-12 | 2020-08-12 | Virtual reality display device |
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| Country | Link |
|---|---|
| CN (1) | CN213092016U (en) |
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- 2020-08-12 CN CN202021673879.3U patent/CN213092016U/en active Active
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