WO2017206317A1 - Wide-field, near-eye display apparatus and method - Google Patents

Abstract

A wide-field, near-eye display apparatus comprises an imaging apparatus and a housing (100). The imaging apparatus is disposed in the housing (100). The imaging apparatus comprises: a first display apparatus (211), a second display apparatus (212), a first semi-transmissive/semi-reflective lens (221), and a first reflector (202). The first semi-transmissive/semi-reflective lens (221) is located between the first display apparatus (211) and the second display apparatus (212). Light rays emitted from the first display apparatus (211) form a first imaging area (P1) within a visible range of the human eye by means of the first semi-transmissive/semi-reflective lens (221). Light rays emitted from the second display apparatus (212) form a second imaging area (P2) within a visible range of the human eye by means of a second curved surface (S2) of the first semi-transmissive/semi-reflective lens (221) and the first reflector (202). Images in the first imaging area (P1) and/or the second imaging area (P2) can be superimposed with natural light rays to achieve augmented reality. Light rays of images in the first imaging area (P1) and the second imaging area (P2) are superimposed to achieve virtual reality.

Description

Large field of view near-eye display device and method Technical field

The present invention relates to the field of video imaging, and more particularly to a large field of view near-eye display device and method.

Background technique

The near-eye display, also known as the head-mounted display, is a display technology that enables the wearer to see the near-eye content. Currently, the head-mounted display is divided into a monocular display and a binocular display, and the binocular display technique respectively projects a parallax map in the human eye, thereby forming The stereo effect, but the existing technology is mostly virtual reality, can only see the picture in the display device, and can not perfectly combine the effect of augmented reality and virtual reality.

Augmented Reality Technology is a technology that integrates real world information and virtual world information. It can realize the visual experience beyond the electronic screen. While presenting the real world, it simultaneously displays the virtual information and complements and superimposes the reality and the virtual. Give the user a good visual experience. The existing near-eye display device can only display virtual reality and augmented reality from a single aspect. How to better compatible and switch between two display effects is a technical problem that needs to be solved now.

Summary of the invention

The technical problem to be solved by the present invention is to provide a large field of view near-eye display device. By providing an imaging device in each of the left and right eyes of the human body, two display devices are disposed in the imaging device, and the two display devices are disposed through the half mirror. Two imaging regions are formed in the human eye horizon, and any one of the two imaging regions is superimposed with the real scene to augment the reality, which solves the difficulty that the augmented reality device and the virtual reality device cannot be combined in the prior art.

In order to solve the above technical problem, a technical solution adopted by the present invention is to provide a large field of view near-eye display device, including an imaging device and a housing, the imaging device being disposed in the housing, the imaging device comprising:

a first display device, a second display device, a first half mirror and a first mirror; the first half mirror is located between the first display device and the second display device The first mirror is disposed on a side of the second working surface of the first half mirror;

The light emitted by the first display device forms a first imaging area in a range of a human eye through a first half mirror, and the light emitted by the second display device passes through a second operation of the first half mirror. The face and the first mirror form a second imaging area within a range of the human eye;

The image in the first imaging area and/or the second imaging area is superimposed with the real light to be used for augmenting reality; the light of the image in the first imaging area and the second imaging area is superimposed for virtual reality.

Further, the imaging apparatus further includes: a first lens group disposed on one side of the first half mirror, the first lens group for amplifying the first imaging area and/or Second imaging area.

Further, the imaging device is provided with a light hole for external light to be incident, and the mixed light generated by the light of the first imaging region superimposed with the externally incident light realizes augmented reality.

Further, the imaging device is provided with a light hole for external light to be incident, and the mixed light generated by the light of the second imaging region superimposed with the externally incident light realizes augmented reality.

Further, the mixed light generated by the light of the first imaging area and the light of the second imaging area is superimposed to realize virtual reality.

Further, the first display device is a projection screen or an electronic display screen; and the second display device is a projection screen or an electronic display screen.

Further, the first half mirror is a concave mirror or a plane mirror.

Further, the first half mirror is provided with an adjusting device, and the adjusting device adjusts the position of the first half mirror according to the positions of the first display device and the second display device. Or angle.

Further, the first mirror is a mirror or a half mirror, and both sides of the first mirror have the same curvature.

In order to solve the above technical problem, the present invention also provides a near-eye display method, comprising the following steps:

The light emitted by the first display device and the second display device passes through the first half mirror and the first mirror to form a first imaging area and a second imaging area in a range of a human eye;

The image in the first imaging area or the second imaging area is superimposed with the real light to implement the augmented reality; the light of the image in the first imaging area and the second imaging area is superimposed to implement the virtual reality.

The invention has the beneficial effects that the present invention provides two display devices in the imaging device by providing an imaging device, and the two display devices form two imaging regions in the human eye through the half mirror, two imaging images. Any one of the regions is superimposed with the real scene and used for augmented reality. The two imaging regions are superimposed and used for virtual reality. The simple optical principle is used to realize augmented reality and virtual reality in the same device.

DRAWINGS

Figure 1 is a block diagram of the overall structure of the present invention;

2 is a schematic structural view of a first image forming apparatus of the present invention;

3 is a schematic view showing the overall structure of a large field of view near-eye display device of the present invention;

Figure 4 is a flow chart of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS: 100, housing; 110, first receiving cavity; 120, second receiving cavity; 201, first lens group; 202, first mirror; 203, second lens group; 204, second mirror 211, a first display device; 212, a second display device; 213, a third display device; 214, a fourth display device; 221, a first transflective mirror; 222, a second semi-transparent mirror.

detailed description

In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the accompanying drawings and specific embodiments. It is to be noted that when an element is described as being "fixed" to another element, it can be directly on the other element, or one or more central elements can be present. When an element is referred to as "connected" to another element, it can be a <RTI ID=0.0> </ RTI> </ RTI> <RTIgt; The terms "vertical," "horizontal," "left," "right," and the like, as used in this specification, are for the purpose of illustration.

Unless otherwise defined, all technical and scientific terms used in the specification are the same meaning The terminology used in the description of the present invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and/or" as used in this specification includes one or more of the associated Any and all combinations of the listed items.

The invention will now be described in detail in conjunction with the drawings and embodiments.

Example 1

Referring to FIG. 1 , a large field of view near-eye display device includes two first imaging devices, a second imaging device and a housing 100 . The housing 100 is internally separated to form a first receiving cavity 110 and a second receiving cavity 120 . A first imaging device is disposed in the receiving cavity 110, and a second imaging device is disposed in the second receiving cavity 120. The first imaging device includes a first display device 211, a second display device 212, and a first half mirror 221, and the first half mirror 221 is located at the first display device 211 and the second display device 212. between. The second imaging device includes a third display device 213, a fourth display device 214, and a second half mirror 222, and the second half mirror 222 is located between the third display device 213 and the fourth display device 214. The light emitted by the first display device 211 forms a first imaging area P1 in the range of the human eye through the first half mirror 221, and the light emitted by the second display device 212 passes through the first half mirror 221 in the human eye. The second imaging region P2 is formed in the horizon; the image in the first imaging region P1 or the second imaging region P2 is superimposed with the real light for augmented reality; the light of the image in the first imaging region P1 and the second imaging region P2 is superimposed Used for virtual reality. The light emitted by the third display device 213 forms a third imaging area in the range of the human eye through the second half mirror 222, and the light emitted by the fourth display device 214 passes through the second half mirror 222 in the human eye. A fourth imaging region is formed in the range; the image in the third imaging region or the fourth imaging region is superimposed with the real light for augmented reality; and the light in the third imaging region and the fourth imaging region is superimposed for virtual reality.

The first display device 211, the second display device 212, the third display device 213, and the fourth display device 214 are all (not limited to): a projection screen or an electronic display screen.

In the large field of view near-eye display device of the embodiment, by providing an imaging device in each of the left and right eyes of the human body, two display devices are disposed in the imaging device, and the two display devices are formed in the human eye through the semi-transparent mirror. Two imaging areas, one of the two imaging areas is superimposed with the real scene for augmented reality, and the two imaging areas are superimposed for virtual reality, using simple optical principles to achieve augmented reality and virtuality in the same device. reality.

Please refer to FIG. 2 and FIG. 3 , in particular, due to the first imaging device and the second imaging device The structural configuration is completely identical, and when the first imaging device and the second imaging device are specifically described, only the first imaging device will be described. The center of the first half mirror 221 in the first imaging device is located at the center of the first receiving cavity 110. In a specific application, the position of the first half mirror 221 is not limited thereto, and the first half is half-reflexed. The specific position and angle of the mirror 221 can be adjusted according to the position of the first display device 211 and the second display device 212. The first display device 211 is disposed above the first half mirror 221, and the second display device 212 is disposed below the first half mirror 221 . The first half-transparent mirror 221 includes a first working surface S1 and a second working surface S2. The light projected by the first display device 211 is partially reflected on the first working surface, and the light projected by the second display device 212 is Partial reflection occurs in the second working surface. The imaging device further includes a first lens group 201 disposed on one side of the first working surface of the first half mirror 221, and the first lens group 201 can be a concave mirror or a plane mirror. In the near-eye display device, the world of the human eye is limited. To enlarge the size and sharpness of the image captured by the human eye, the first lens group 201 is placed at the position of the housing 100 near the human eye. The imaging device further includes: a first mirror 202, the first mirror 202 is disposed on one side of the second working surface of the first half mirror 221, and the first mirror 202 is a full lens or a half mirror, The curved surfaces on both sides of a mirror 202 have the same curvature. It should be noted that the first mirror 202 has two different working faces, respectively a third working surface S3 and a fourth working surface S4, wherein the third working surface is located facing the first half mirror 221, The four working faces are on the other side. When the first mirror 202 is a full lens, the third working surface is coated with an anti-reflection film, and the anti-reflection film can reduce the amount of light transmission and increase the intensity of the reflected light. In some alternative embodiments, when the first mirror 202 is specifically a half mirror, an anti-reflection film is applied to the fourth working surface of the first mirror 202, and the anti-reflection film can increase the amount of light transmission. One of the functions of the first mirror 202 is to provide a wider access to the external scene.

The second imaging device further includes: a second lens group 203 and a second mirror 204, the second lens group 203 is disposed on a side of the second half mirror 222 close to the human eye, and the second mirror 204 is disposed at the second The half mirror 222 is away from the side of the human eye.

The light projected by the first display device 211 capable of realizing augmented reality or virtual reality passes through the reflection and refraction of the first working surface of the first half mirror 221, and part of the light directly enters the human eye, so that the human brain is determined in the first half. In the region between the half mirror 221 and the first lens group 201 A first imaging area P1 is formed. The light projected by the second display device 212 capable of realizing augmented reality or virtual reality passes through the reflection and refraction of the second working surface of the first half mirror 221, so that the human brain recognizes the first half mirror 221 and the first A second imaging area P2 is formed in a region between the mirrors 202.

Similarly, in the second imaging device, the light projected by the third display device 213 capable of realizing augmented reality or virtual reality passes through the reflection and refraction of the first working surface of the second half mirror 222, and some of the light directly enters the person. The eye causes the human brain to recognize that a third imaging region is formed in a region between the second half mirror 222 and the second lens group 203. The light projected by the third display device 213 capable of realizing augmented reality or virtual reality passes through the reflection and refraction of the second working surface of the second half mirror 222, so that the human brain recognizes the second half mirror 222 and the second A fourth imaging area is formed in a region between the two mirrors 204.

The housing 100 is provided with a light hole at a position where the first mirror 202 is located, so that the human eye can see the real scene through the large field of view near-eye display device, and the large-field near-eye display device does not need to acquire the external when performing virtual reality. Scene, you need to close the light hole at this time. For this purpose, a rotatable cover (not shown) is provided at the aperture, and the cover is used to open or close the aperture. The same housing 100 is also provided with a light hole at the position where the second mirror 204 is located. In the present embodiment, the first mirror can be (not limited to) a concave surface, a convex surface, or a plane mirror. Preferably, in some alternative implementations, the first mirror is a concave mirror.

The first half transflective mirror 221 and the second transflective mirror 222 are the most important devices for adjusting the imaging area, and should be adjustable to meet the requirements of different use environments or users, in the first half transflective Both the mirror 221 and the second half mirror 222 are connected to an adjusting device (not shown), and one end of the adjusting device is connected to the first half mirror 221 or the second half mirror 222, and the other end protrudes from the shell. Outside the body 100, a guide groove (not shown) for moving the adjusting device is left on the housing 100, and the adjusting device is movable and fixed to the guiding groove. When the position of the first half mirror 221 or the second half mirror 222 is adjusted, the adjusting device moves along the guiding groove to adjust the angle of the first half mirror 221 or the second half mirror 222 When the adjusting device rotates in the guiding groove.

The following is an example of a method for implementing augmented reality or virtual reality in a large field of view near-eye display device.

When augmented reality is realized, the light taken by the human eye is composed of at least two kinds of light sources. The first one is a virtual light source, and the other is a light source from a real scene. The superposition of the two light sources can realize augmented reality. The virtual reality light source projected by the first display device 211 passes through the reflection of the first working surface of the first half mirror 221, enters the third working surface of the first mirror 202, and the third mirror 202 The work is reflected by the light, and the human eye can view the image projected by the first display device 211 in the first imaging area P1. At the same time, the external light enters the housing 100 by the first mirror 202, and the human eye simultaneously The light projected by the first display device 211 and the external scene are ingested, and of course, the content acquired by a single eye is insufficient to create a stereoscopic effect on the human brain. While the first display device 211 is projected, the third display device 213 of the second imaging device cooperated with the projection, so that the left and right eyes of the human body can be simultaneously acquired, the first display device 211, the third display device 213, and External view for enhanced display.

In some alternative implementations, when augmented reality is implemented. The virtual reality light source projected by the second display device 212 passes through the second working surface of the first half mirror 221 and enters the third working surface of the first mirror 202, and the third mirror 202 is third. The work is reflected by the light, and the human eye can view the image projected by the first display device 211 in the second imaging area P2. At the same time, the external light enters the housing 100 by the first mirror 202, and the human eye simultaneously Ingesting the picture projected by the first display device 211 and the light of the outside scene, the content acquired by the same single eye is not sufficient to give the human brain a three-dimensional effect. While the second display device 212 is being projected, the fourth display device 214 of the second imaging device cooperated with the projection, so that the left and right eyes of the human body can be simultaneously acquired, the second display device 212, the fourth display device 214, and External view for enhanced display.

When the virtual reality is realized, the light source of the virtual reality projected by the first display device 211 passes through the reflection of the first working surface of the first half mirror 221, and enters the third working surface of the first mirror 202, the first reflection. The third operation of the mirror 202 is reflected by the light, and the human eye can view the picture projected by the first display device 211 in the first imaging area P1. At the same time, the virtual reality light source projected by the second display device 212 passes through the second working surface of the first half mirror 221 and enters the third working surface of the first mirror 202, the first mirror. The third work of 202 is reflected by the light, and the human eye can view the second imaging area P2. The screen projected by the first display device 211 is seen. The superposition of the light of the first imaging region P1 and the second imaging region P2 is used to enhance the virtual reality. The same single eye gets enough content to give the human brain a three-dimensional look. While the first display device 211 and the second display device 212 are projected, the third display device 213 and the fourth display device 214 of the second imaging device simultaneously project, so that the left and right eyes of the human body can be simultaneously acquired, and the first display The image projected by the device 211, the second display device 212, the third display device 213, and the fourth display device 214, thereby implementing virtual reality. It should be pointed out that in the process of realizing virtual reality, the optical aperture is closed.

Example 2

Please refer to FIG. 1 and FIG. 4, a near-eye display method, including the following steps:

S10. The light emitted by the first display device 211 and the second display device 212 passes through the first half mirror 221 to form a first imaging area and a second imaging area P2 within a human eye horizon.

S20, the image in the first imaging area or the second imaging area is superimposed with the real light to implement the augmented reality; the first imaging area and the second imaging area are superimposed and used to implement the virtual reality. .

In the present embodiment, the first mirror can be (not limited to) a concave surface, a convex surface, or a plane mirror. Preferably, in some alternative implementations, the first mirror is a concave mirror.

In the present embodiment, the method for realizing the augmented reality and the virtual reality in the large-field near-eye display device is described. The device implemented by the near-eye display method and the principle thereof are described in the first embodiment, and details are not described herein.

It is to be noted that the preferred embodiments of the present invention are described in the specification of the present invention, and the present invention may be embodied in many different forms and not limited to the embodiments described herein. These examples are not intended to be limiting as to the scope of the present invention, which is intended to provide a more thorough understanding of the present disclosure. Further, the above various technical features are further combined with each other to form various embodiments not enumerated above, and are considered as the scope of the description of the present invention; further, those skilled in the art can improve or change according to the above description. All such improvements and modifications are intended to be included within the scope of the appended claims.

Claims (10)

A large field of view near-eye display device, comprising: an imaging device and a housing, the imaging device being disposed in the housing, the imaging device comprising: a first display device, a second display device, a first half mirror and a first mirror; the first half mirror is located between the first display device and the second display device, a mirror is disposed on a side of the second working surface of the first transflective mirror; The light emitted by the first display device forms a first imaging area in a range of a human eye through a first half mirror, and the light emitted by the second display device passes through a second operation of the first half mirror. The face and the first mirror form a second imaging area within a range of the human eye; The image in the first imaging area and/or the second imaging area is superimposed with the real light to be used for augmenting reality; the light of the image in the first imaging area and the second imaging area is superimposed for virtual reality. The large field of view near-eye display device according to claim 1, wherein the image forming device further comprises: a first lens group, wherein the first lens group is disposed at one side of the first half mirror, The first lens group is for magnifying the first imaging area and/or the second imaging area. The large-field near-eye display device according to claim 1, wherein the imaging device is provided with a light hole for external light incident, and the light of the first imaging region is superimposed with the externally incident light. Blending light to achieve augmented reality. The large-field near-eye display device according to claim 1, wherein the imaging device is provided with a light hole for external light incident, and the light of the second imaging region is superimposed with the externally incident light. Blending light to achieve augmented reality. The large-field near-eye display device according to claim 1, wherein the mixed light generated by the light of the first imaging region and the light of the second imaging region is superimposed to realize virtual reality. The large field of view near-eye display device according to any one of claims 1 to 5, wherein the first display device is a projection screen or an electronic display screen; and the second display device is a projection screen or an electronic display screen. The large field of view near-eye display device according to any one of claims 1 to 5, wherein the first half mirror is a concave mirror or a plane mirror. The large field of view near-eye display device according to claim 7, wherein the first half mirror is provided with an adjusting device, and the adjusting device is adjusted according to the positions of the first display device and the second display device. The position and/or angle of the first transflective mirror. The large field of view near-eye display device according to any one of claims 3 to 5, wherein the first mirror is a mirror or a half mirror. A near-eye display method, comprising the steps of: The light emitted by the first display device and the second display device passes through the first half mirror and the first mirror to form a first imaging area and a second imaging area in a range of a human eye; The image in the first imaging area or the second imaging area is superimposed with the real light to implement the augmented reality; the light of the image in the first imaging area and the second imaging area is superimposed to implement the virtual reality.

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