CN207123656U - A kind of augmented reality helmet and its optics module for being adapted to mobile phone - Google Patents
A kind of augmented reality helmet and its optics module for being adapted to mobile phone Download PDFInfo
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- CN207123656U CN207123656U CN201720471452.7U CN201720471452U CN207123656U CN 207123656 U CN207123656 U CN 207123656U CN 201720471452 U CN201720471452 U CN 201720471452U CN 207123656 U CN207123656 U CN 207123656U
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- 230000003190 augmentative effect Effects 0.000 title claims abstract description 39
- 230000003287 optical effect Effects 0.000 claims abstract description 128
- 239000012528 membrane Substances 0.000 claims description 7
- 230000003667 anti-reflective effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000011514 reflex Effects 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- 230000006978 adaptation Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000012546 transfer Methods 0.000 description 5
- 230000003044 adaptive effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
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Abstract
The utility model discloses a kind of augmented reality helmet and its optics module for being adapted to mobile phone, the optics module includes：The toroidal lens and planar lens being oppositely arranged；First optical image information of the display screen outgoing of the mobile phone reflexes to the toroidal lens by the planar lens, then reflexes to the planar lens by the toroidal lens, then is emitted through the planar lens；The second optical image information from object scene is emitted after passing through the toroidal lens and the planar lens successively；First optical image information and second optical image information by planar lens outgoing form superimposed image.It can be seen that augmented reality image, which can be achieved, by a toroidal lens and a planar lens in the optics module of technical solutions of the utility model shows that optics module is simple in construction, low manufacture cost, it is easy to Intelligent worn device to use and popularize.
Description
Technical Field
The utility model relates to an electronic equipment technical field is dressed to intelligence, and more specifically the utility model relates to an augmented reality head-mounted device and optical module of adaptation cell-phone that says so.
Background
With the continuous development of science and technology, more and more display devices are widely applied to daily life and work of people, bring great convenience to the daily life and work of people, and become an indispensable important tool for people at present.
Head-mounted display devices are generally classified into AR devices (augmented reality devices), VR devices (virtual reality devices), MR devices (hybrid display devices), and the like. The AR equipment principle is that human eyes can obtain scene information of the real world and image information displayed by a display screen, and the image information of the two paths is fused at the positions of the human eyes to form a superposed image.
Among the existing head-mounted display device, in order to realize the augmented reality display, the optical module that is generally used is divided into two types: the optical waveguide form and the free-form surface prism form. The optical modules in the two forms have complex structures and high manufacturing cost, and are not convenient for the use and popularization of the head-mounted display equipment.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an augmented reality head-mounted device and optical module of adaptation cell-phone, optical module only has a curved lens and a planar lens, can realize augmented reality image display, and optical module simple structure, the cost of manufacture is low, and the head-mounted display device of being convenient for uses and popularizes.
In order to achieve the above object, the present invention provides the following technical solutions:
an optical module for adapting an augmented reality headset of a mobile phone, the optical module comprising: the curved lens and the planar lens are oppositely arranged;
first optical image information emitted by a display screen of the mobile phone is reflected to the curved lens through the planar lens, reflected to the planar lens through the curved lens and emitted through the planar lens; second optical image information from the target scenery sequentially penetrates through the curved lens and the planar lens and then is emitted;
the first optical image information and the second optical image information emitted through the planar lens form a superimposed image.
Preferably, in the optical module, the curved lens has a concave surface and a convex surface which are oppositely arranged; the concave surface has the same radius of curvature as the convex surface;
the planar lens has a first plane and a second plane which are oppositely arranged, and the first plane faces to the concave surface of the curved lens.
Preferably, in the optical module, the concave surface and the convex surface are both spherical surfaces.
Preferably, in the optical module, an optical axis of the curved lens is parallel to a reference plane; the planar lens is intersected with the reference plane, and the included angle between the planar lens and the reference plane is not equal to 90 degrees;
and the display screen of the mobile phone is parallel to the reference plane.
Preferably, in the optical module, the planar lens and the reference plane have an included angle of 45 °.
Preferably, in the optical module, the concave surface is covered with a first semi-reflective and semi-permeable film, and the first plane is covered with a second semi-reflective and semi-permeable film.
Preferably, in the optical module, the length of the display screen of the mobile phone is L, the monocular field angle is α, and the distance from the intersection point of the optical axis of the curved lens and the first plane to the display screen of the mobile phone is d3The distance between the intersection point and the convex surface is d2；
Wherein,
preferably, in the optical module, a distance between an intersection point of the optical axis of the curved lens and the first plane and the display screen of the mobile phone is d3The distance between the intersection point and the convex surface is d2；
The effective focal length of the optical module is equal to d3+d2。
Preferably, in the optical module, the optical module further includes:
a antireflective film covering the second plane.
The utility model also provides an augmented reality head-mounted device of adaptation cell-phone, augmented reality head-mounted device includes:
the head-mounted device body is used for fixing the augmented reality head-mounted device at a preset position of the head of a user; the head-mounted equipment main body is provided with a fixing device for placing a mobile phone;
a first lens module and a second lens module disposed on the head-mounted device main body, the first lens module and the second lens module each including any of the optical modules described above;
when the augmented reality image is displayed, the display screen of the mobile phone is divided into two display areas for split screen display, and the two display areas display first optical image information; the first optical image information emitted from one display area is used for being incident into the optical module of the first lens module, and the first optical image information emitted from the other display area is used for being incident into the optical module of the second lens module.
Preferably, in the above-described augmented reality head-mounted device, an optical axis of the curved lens is parallel to the reference plane;
the display screen of the mobile phone is parallel to the reference plane and faces the optical axis.
According to the above description, in the augmented reality head-mounted device and the optical module thereof of the adaptive mobile phone according to the technical solution of the present invention, the optical module can realize augmented reality image display through a curved lens and a planar lens, specifically, the first optical image information emitted from the display screen of the mobile phone is reflected to the curved lens through the planar lens, reflected to the planar lens through the curved lens, and then emitted through the planar lens; and second optical image information from the target scenery is emitted after sequentially passing through the curved lens and the planar lens. And when the augmented reality image is displayed, the first optical image information and the second optical image information which are emitted out through the planar lens form a superposed image to be displayed to a user. It is visible, in the technical scheme of the utility model optical module simple structure, the cost of manufacture is low, and the head-mounted display device of being convenient for uses and popularizes.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an optical module according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a design principle of the optical module according to an embodiment of the present invention;
fig. 3 is a graph illustrating a modulation transfer function of an optical module according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an augmented reality headset of an adaptive mobile phone according to an embodiment of the present invention.
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 work belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an optical module according to an embodiment of the present invention, the optical module is used for an augmented reality headset of an adaptive mobile phone, and the optical module includes: a curved lens 2 and a flat lens 3 which are arranged oppositely.
The first optical image information emitted by the display screen of the mobile phone 1 is reflected to the curved lens 2 through the planar lens 3, reflected to the planar lens 3 through the curved lens 2, and emitted through the planar lens 3; and the second optical image information from the target scenery is emitted after sequentially passing through the curved lens 2 and the planar lens 3.
When the augmented reality image is displayed, the first optical image information and the second optical image information which are emitted through the planar lens 3 form a superposed image to be displayed to a user.
It can be seen that, the embodiment of the utility model provides an among the optical module, have two light paths, be used for transmitting the second optical image information of the first optical image information that the display screen of cell-phone 1 shows and the target scenery in the real world respectively. The first optical image information and the second optical image information propagated in the two optical paths are both emitted through the planar lens 3 to be displayed to a user.
Can know through the above-mentioned description, the embodiment of the utility model provides an optical module only has a curved surface lens and a planar lens, can realize augmented reality image display, and optical module simple structure, the cost of manufacture is low, and the intelligent wearing equipment of being convenient for uses and popularizes.
As shown in fig. 1, the curved lens 2 has a concave surface 212 and a convex surface 211 which are oppositely arranged; the planar lens 3 has a first plane 311 and a second plane 312 which are oppositely disposed. The first plane 311 faces the concave surface 212 of the curved lens 2.
The concave surface 212 and the convex surface 211 have the same radius of curvature, as both may be spherical. The optical axis of the curved lens 2 is parallel to a reference plane P1; the concave surface 212 is covered with a first semi-permeable semi-membrane. The first semi-permeable semi-membrane is not shown in fig. 1. The first plane 311 is covered with a second semi-reflecting and semi-permeable membrane; the second semi-reflecting and semi-permeable membrane faces the first semi-reflecting and semi-permeable membrane and faces a display screen of the mobile phone 1; the planar lens 3 intersects the reference plane P1 at an angle not equal to 90 °, specifically, the planar lens 3 and the reference plane P1 are arranged to have an angle of 45 °. The second transflective film is not shown in fig. 1. Wherein the display of the handset 1 is parallel to the reference plane P1.
As above-mentioned, the embodiment of the utility model provides an optical module has two light paths, and the light path that the first optical image information process that the display screen of cell-phone 1 shows is: first plane 311-concave surface 212-first plane 311-second plane 312-human eye 4; the optical path through which the second optical image information of the object scene passes is: convex surface 211-concave surface 212-first plane 311-second plane 312-human eye 4.
In order to make the manufacturing process of the optical module is simple, the manufacturing cost is low, in the embodiment of the present invention, the concave surface 212 and the convex surface 211 are both spherical surfaces. Meanwhile, the curved lens 2 can be made of transparent plastic materials, so that the curved lens 2 can be molded conveniently.
In order to avoid the second plane 312 of the planar lens 3 generating strong reflection, resulting in dazzling, affecting the visual experience of the user, the optical module further comprises: an anti-reflection film covering the second plane 312. The antireflection film is not shown in fig. 1.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating a design principle of the optical module according to an embodiment of the present invention, the planar lens 3 and the reference plane P1 have an included angle β of 45 °, the optical axis of the curved lens 2 is parallel to the reference plane P1, and in fig. 2, the optical axis of the curved lens 2 is located in the reference plane P1, so that the relative positions of the curved lens 2 and the planar lens 3 are fixed.
When augmented reality display is carried out, the relative position of the display screen of the mobile phone 1 and the optical module is fixed, and the display screen of the mobile phone 1 is parallel to the reference plane P1. In the three-dimensional rectangular coordinate system O-XYZ, the reference plane P1 is parallel to the XY plane, and the positive Z-axis is the direction in which the planar lens 3 points to the mobile phone 1.
Setting the length of the display screen of the mobile phone 1 to be L, namely the length of the display screen in the Y-axis direction, setting the Y-axis to be vertical to the optical axis of the curved lens 2, setting the monocular field angle to be α, and setting the distance from the intersection point of the optical axis of the curved lens 2 and the first plane 311 to the display screen of the mobile phone to be d3The distance from the intersection point to the convex surface 211 is d2. The distance from the second plane 312 to the human eye is set to d1。
The monocular angle of view α is a known parameter and can be set as required, for example, α may be set to 45 ° L, α, d3And d2Formula (1) is satisfied, and formula (1) is:
setting the effective focal length of the optical module to be EFL, the effective focal length is EFL as shown in formula (2), and the formula (2) is:
EFL＝d3+d2(2)
the relative position relations of the curved lens 2, the planar lens 3 and the mobile phone are arranged based on the formula (1) and the formula (2), so that the layout of the relative position relations of the three is facilitated.
It should be noted that the two sides of the equation in the above equation (1) and the equation (2) are not absolutely equal, and an error of not more than 1mm is allowed.
When the length of the display screen of the mobile phone 1 is 104mm, the length of the monocular display area is 52mm, and the monocular angle of view α is defined to be 45 °, d1＝52mm，d2＝30mm，d332 mm. The EFL can be calculated to be 62 mm. The size of the curved lens 2 is 64mm × 46mm × 2mm, that is, the length of the curved lens 2 on the Y axis is 64mm, the width on the Z axis is 46mm, and the thickness on the X axis is 2 mm;the dimensions of the planar lens 3 are 64mm × 63mm × 2mm, that is, the length of the planar lens 3 in the Y axis is 64mm, the width in the Z axis is 63mm, and the thickness in the X axis is 2 mm. The concave surface 212 and the convex surface 211 are provided with a radius of curvature of 124mm each. The curve image of the Modulation Transfer Function (MTF) of the optical module based on the above parameters is shown in fig. 3.
Referring to fig. 3, fig. 3 is a graph illustrating a modulation transfer function of an optical module according to an embodiment of the present invention. In FIG. 3, the horizontal axis represents SPATIAL FREQUENCY per millimeter period (SPATIAL FREQUENCY IN CYCLES PERMILLIMETER) in lp/mm (line pairs/mm); the vertical axis represents the mode OF the optical transfer function (MODULUS OF THEOTF), and the vertical axis represents the normalized value OF the mode OF the optical transfer function without dimension.
In fig. 3, T denotes a meridional direction in the optical module, and S denotes a sagittal reversal direction in the optical module. DEG represents angular units of degrees (°). As can be seen from fig. 3, the optical module can obtain a good imaging effect on the central area of the display screen of the mobile phone, and the edge effect is slightly poor.
Can know through the above-mentioned description, the embodiment of the utility model provides an among the optical module, only having a curved surface lens and a planar lens, can realizing augmented reality image display, optical module simple structure, the cost of manufacture is low, and the intelligence wearing equipment of being convenient for uses and popularizes.
Based on above-mentioned optical module group embodiment, the utility model discloses another embodiment still provides the augmented reality head-mounted device of an adaptation cell-phone, and the augmented reality head-mounted device of this adaptation cell-phone is shown as figure 4.
Referring to fig. 4, fig. 4 is a schematic structural diagram of an augmented reality headset of an adaptation cell-phone that the embodiment of the present invention provides, the augmented reality headset of this adaptation cell-phone includes: a head-mounted device body 41; a first lens module 42 and a second lens module 43 provided on the head-mounted device body 41.
The head-mounted device body 41 is used for fixing the augmented reality head-mounted device at a preset position on the head of a user, and the head-mounted device body 41 is provided with a fixing device 44 for placing the mobile phone 1. The first lens module 42 and the second lens module 43 both include the optical module described in the above embodiments.
When the augmented reality image is displayed, the display screen of the mobile phone 1 is divided into two display areas for split screen display, and the two display areas both display first optical image information; the first optical image information emitted from one display area is used for being incident on the optical module of the first lens module 42, and the first optical image information emitted from the other display area is used for being incident on the optical module of the second lens module 43.
As described in the above embodiments, the curved lenses of the two optical modules are perpendicular to a reference plane, that is, in the two optical modules, the optical axes of the curved lenses are parallel to the reference plane, and the display screen of the mobile phone is parallel to the reference plane and disposed toward the optical axes, so as to facilitate the installation and fixation of the relative positions between the components.
Fig. 4 is a cross-sectional view on AA' as shown in fig. 2, and reference is made to fig. 2 for a relative position relationship between the curved lens, the planar lens and the mobile phone in the optical module of the first lens module 42 in the cross-sectional view, which is not repeated herein.
Can know through the above-mentioned description, the embodiment of the utility model provides an among the augmented reality head-mounted device of adaptation cell-phone, only two above-mentioned optical module and the head-mounted device main part that matches can realize the augmented reality through the cell-phone and show, simple structure, the cost of manufacture is low, and the intelligent wearing equipment of being convenient for uses and popularizes.
It should be noted that, in the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. For the augmented reality headset adapted to the mobile phone disclosed in the embodiment, since the augmented reality headset corresponds to the optical module disclosed in the embodiment, the description is relatively simple, and relevant points can be referred to the description of relevant parts of the optical module.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. An optical module for adapting an augmented reality headset of a mobile phone, the optical module comprising: the curved lens and the planar lens are oppositely arranged;
first optical image information emitted by a display screen of the mobile phone is reflected to the curved lens through the planar lens, reflected to the planar lens through the curved lens and emitted through the planar lens; second optical image information from the target scenery sequentially penetrates through the curved lens and the planar lens and then is emitted;
the first optical image information and the second optical image information emitted through the planar lens form a superimposed image.
2. The optical module of claim 1, wherein the curved lens has a concave surface and a convex surface disposed opposite to each other; the concave surface has the same radius of curvature as the convex surface;
the planar lens has a first plane and a second plane which are oppositely arranged, and the first plane faces to the concave surface of the curved lens.
3. The optical module of claim 2 wherein the concave surface and the convex surface are spherical.
4. The optical module of claim 2, wherein the optical axis of the curved lens is parallel to a reference plane; the planar lens is intersected with the reference plane, and the included angle between the planar lens and the reference plane is not equal to 90 degrees;
and the display screen of the mobile phone is parallel to the reference plane.
5. The optical module of claim 4 wherein the planar lens has an angle of 45 ° with respect to the reference plane.
6. The optical module of claim 2 wherein the concave surface is covered with a first semi-reflective semi-permeable membrane and the first planar surface is covered with a second semi-reflective semi-permeable membrane.
7. The optical module as claimed in claim 2, wherein the display screen of the mobile phone has a length of L, the monocular field of view is α, and the distance d from the intersection point of the optical axis of the curved lens and the first plane to the display screen of the mobile phone3Said intersection point and said convex surfaceA distance of d2；
Wherein,
8. the optical module of claim 2, wherein the distance d between the intersection point of the optical axis of the curved lens and the first plane and the display screen of the mobile phone is3The distance between the intersection point and the convex surface is d2；
The effective focal length of the optical module is equal to d3+d2。
9. The optical module of claim 2 further comprising:
a antireflective film covering the second plane.
10. An augmented reality headset that adapts to a cell phone, comprising:
the head-mounted device body is used for fixing the augmented reality head-mounted device at a preset position of the head of a user; the head-mounted equipment main body is provided with a fixing device for placing a mobile phone;
a first lens module and a second lens module disposed on the head-mounted device body, the first lens module and the second lens module each comprising the optical module of any of claims 1-9;
when the augmented reality image is displayed, the display screen of the mobile phone is divided into two display areas for split screen display, and the two display areas display first optical image information; the first optical image information emitted from one display area is used for being incident into the optical module of the first lens module, and the first optical image information emitted from the other display area is used for being incident into the optical module of the second lens module.
11. The augmented reality headset of claim 10, wherein an optical axis of the curved lens is parallel to a reference plane;
the display screen of the mobile phone is parallel to the reference plane and faces the optical axis.
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| CN106896505A (en) * | 2017-04-28 | 2017-06-27 | 歌尔科技有限公司 | A kind of augmented reality helmet and its optics module for being adapted to mobile phone |
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Effective date of registration: 20201012 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: 266100 Qingdao, Laoshan District, North House Street investment service center room, Room 308, Shandong Patentee before: GOERTEK TECHNOLOGY Co.,Ltd. |