TWI667497B - Augmented reality image device - Google Patents

Abstract

The invention provides a virtual and real image integration device, which comprises a display, a mirror, a mirror and a front cover. The display has a first side and a second side that are oppositely disposed. The mirror surface and the front cover are disposed on the first side of the display, the front cover has a reflective area, and the mirror is disposed on the second side of the display. The display emits image light from the first side, and the image light is directed to the mirror surface and is specularly reflected to the mirror, and the mirror reflects the image light to the reflection area of the front cover, thereby the virtual image and the actual image of the image light in the reflection area. Combine into a virtual image.

Description

Virtual reality image integration device

The present invention relates to a virtual reality image integration device for generating a virtual image through which a user can simultaneously view the virtual image and an actual image.

In recent years, augmented reality (AR) devices have received more and more attention, and major companies have also launched AR platforms. For example, Apple Inc. has released the application interface of ARkit in 2017. However, existing augmented reality devices often have problems with devices that are too heavy or too large, so how to design a lighter augmented reality device is a topic of interest to those skilled in the art.

Embodiments of the present invention provide a virtual reality image integration device including a display, a mirror, a mirror, and a front cover. The display has a first side and a second side that are oppositely disposed. The mirror is disposed on the first side of the display, the mirror is disposed on the second side of the display, and the front cover is disposed on the first side of the display, and the front cover has a reflective area. The display emits image light from the first side, and the image light is directed to the mirror The surface is mirror-reflected to the mirror, and the mirror reflects the image light to the reflection area of the front cover, whereby the virtual image presented by the image light in the reflection area is combined with the actual image to form a virtual image.

In some embodiments, the front cover has a reflective layer comprising a plurality of layers of high and low refractive index staggered coatings, and an average reflectance of less than 50% for unpolarized light of 400 nm to 700 nm.

In some embodiments, the mirror described above includes a first mirror and a second mirror. The image light includes a left eye image light and a right eye image light, the left eye image light is specularly reflected to the first mirror, and the right eye image light is specularly reflected to the second mirror.

In some embodiments, the reflective region of the front cover includes a left eye reflection zone and a right eye reflection zone. The first mirror reflects the left eye image light to the left eye reflection area, and the second mirror reflects the right eye image light to the right eye reflection area.

In some embodiments, the left eye image light and the right eye image light are focused and imaged at a distance beyond the side of the front cover relative to the display.

In some embodiments, the distance described above is substantially 1 meter.

In some embodiments, there is a parallax between the content of the left eye image light and the content of the right eye image light, whereby the virtual image includes a three-dimensional object.

In some embodiments, the display has a display surface to emit image light, and an angle between the display surface and a surface of the front cover is 45 degrees or less.

In some embodiments, the mirror surface is disposed between the display and the front cover, and the angle between the mirror surface and the front cover is 45 or less. degree.

In some embodiments, the virtual image integration device further includes a support member for abutting against a user's nose, wherein the mirror is integrated on the support member.

The above-mentioned virtual and real image integration device adopts reflective AR development, which can have the advantage of being lightweight. The above described features and advantages of the invention will be apparent from the following description.

100‧‧‧Virtual and real image integration device

110‧‧‧ display

110a‧‧‧ first side

110b‧‧‧ second side

120‧‧‧Mirror

131‧‧‧First mirror

132‧‧‧second mirror

140‧‧‧ front cover

141‧‧‧ first surface

142‧‧‧ second surface

143‧‧‧reflective layer

150‧‧‧Image light

151‧‧‧Left eye image light

152‧‧‧right eye image light

160‧‧‧Support

161‧‧‧First reflection zone

162‧‧‧second reflection zone

170‧‧‧Light

D‧‧‧Distance

310‧‧‧ display surface

FIG. 1 is a top view showing a virtual reality image integration device according to an embodiment.

FIG. 2 is a side view showing a virtual reality image integration device according to an embodiment.

FIG. 3 is a schematic diagram showing a light path of a side view in a virtual reality image integration device according to an embodiment.

The terms "first", "second", "etc." used in this document are not intended to mean the order or the order, and are merely to distinguish between elements or operations described in the same technical terms.

FIG. 1 is a top plan view showing a virtual reality image integration apparatus according to an embodiment. Referring to FIG. 1, the virtual reality image integration device 100 includes a display The display 110, the mirror 120, the first mirror 131, the second mirror 132 and the front cover 140. The display 110 can be an organic light-emitting diode (OLED) panel, a liquid crystal display panel, or other device capable of providing image light. The mirror 120, the first mirror 131, and the second mirror 132 may comprise glass, a reflective coating, or other coating or element that reflects light. The front cover 140 is located in front of the user's line of sight, and the material of the front cover 140 may include glass, resin or polycarbonate. In some embodiments, the virtual reality image integration device 100 is implemented as a snow cover, but may have any shape in other embodiments, and the present invention does not limit the size, shape, and material of the virtual reality image integration device 100.

The display 110 has a first side 110a and a second side 110b opposite to each other, and the mirror 120 and the front cover 140 are disposed on the first side 110a, wherein the mirror 120 is disposed between the display 110 and the front cover 140. On the other hand, the first mirror 131 and the second mirror 132 are disposed on the second side 110b. The display 110 is for emitting image light 150. In some embodiments, the image light 150 includes left eye image light 151 and right eye image light 152. It should be noted that the left-eye image light 151 and the right-eye image light 152 are emitted by the same display 110, and the left and right eye image lights are respectively emitted by two independent displays compared to some conventional techniques. The virtual reality image integration device 100 of the example has the advantage of being lighter.

The left-eye image light 151 and the right-eye image light 152 are incident on the mirror surface 120, and the left-eye image light 151 and the right-eye image light 152 are respectively reflected by the mirror surface 120 to the first mirror 131 and the second mirror 132. The first mirror 131 and the second mirror 132 reflect the image light 150 onto the front cover 140, the front cover The 140 will project at least a portion of the image light 150 into the human eye, whereby the user will see a virtual image. In addition, the light 170 incident from the outside of the front cover 140 is also projected to the human eye, so the user also sees an actual image, which is combined with the virtual image to form a virtual image.

Specifically, the front cover 140 has a first surface 141 and a second surface 142 opposite to each other with the first surface 141 facing the display 110. A reflective layer 143 is disposed on the first surface 141. The reflective layer 143 includes a plurality of high-low refractive index staggered coatings, and the average reflectance of the unpolarized light of 400 nm to 700 nm is 50% or more, because the wavelength is 400 nm to 700 nm. The light is visible light, and if the reflectance in this wavelength range is too low, the image on the reflective layer 143 is unclear. The reflective layer 143 has a first reflective area 161 and a second reflective area 162 thereon. The first mirror 131 reflects the left-eye image light 151 to the left-eye reflection region 161, and the left-eye reflection region 161 reflects at least a portion of the left-eye image light 151 into the left eye of the user. In addition, the second mirror 132 reflects the right eye image light 152 to the right eye reflection zone 162, and the right eye reflection zone 162 reflects at least a portion of the right eye image light 152 into the user's right eye. The left-eye reflection zone 161 and the right-eye reflection zone 162 in FIG. 1 are merely schematic, and the present invention does not limit the size and position of the left-eye reflection zone 161 and the right-eye reflection zone 162. In some embodiments, the left-eye reflection zone The 161 and right eye reflection regions 162 may also be connected to each other, and the present invention is not limited thereto.

In some embodiments, by adjusting the focus position of the light, the left eye image light 151 and the right eye image light 152 can be focused on a distance D outside the side of the front cover 140 relative to the display 110, in other words, the user. It is visually considered that the above virtual image is located at a distance D. In the prior art The image light 150 is focused and imaged on the reflective layer 143, and the distance between the reflective layer 143 and the human eye is too close, which is easy to cause visual fatigue of the user. In this embodiment, the virtual image is focused and imaged at the distance D. In this way, visual fatigue can be alleviated. The distance D described above is, for example, substantially 1 meter (the error can be within 20%), but in other embodiments it may be substantially 80 centimeters, 2 meters or any other suitable length. In some embodiments, there is a disparity between the content of the left-eye image light 151 and the content of the right-eye image light 152, whereby the virtual image described above includes a three-dimensional object.

2 is a side view showing a virtual reality image integration device according to an embodiment. Referring to FIG. 1 and FIG. 2, in some embodiments, the virtual reality image integration device further includes a support member 160 for abutting against a user's nose, wherein the first mirror 131 is integrated in support. On piece 160. For example, the first mirror 131 can be located above the front of the bridge of the nose. It is to be noted that, since FIG. 2 is a side view, only the first mirror 131 is illustrated, but a second mirror 132 (not shown in FIG. 2) is disposed on the other side of the nose. The mirror 132 is disposed on a support member on the other side of the nose. There are two mirrors 131, 132 in this embodiment, but in some embodiments only one mirror may be provided, which is located on either side of the nose, in such an example the display 110 may emit only one image of light ( Rather than two), the invention is not limited thereto.

FIG. 3 is a schematic diagram showing a light path of a side view in a virtual reality image integration device according to an embodiment. Referring to FIG. 3, from the side view, the image light 150 emitted by the display 110 is directed to the mirror 120, reflected by the mirror 120, and then directed to the first mirror 131 and the second mirror 132, and then by the first counter. The mirror 131 and the second mirror 132 reflect the image light 150 to the reflective area on the front cover 140. In this embodiment, the display 110 and the lens 120 are both disposed approximately vertically, whereby the front and rear thickness of the virtual reality image integrating apparatus 100 can be reduced. Specifically, the display 110 has a display surface 310 to emit image light 150, and the angle Θ between the display surface 310 and the first surface 141 of the front cover is 45 degrees or less. Further, the angle between the mirror 120 and the first surface 141 is also 45 degrees or less.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

Claims (9)

A virtual reality image integration device includes: a display having opposite first and second sides, wherein the display does not have a reflective function; a mirror surface disposed on the first side of the display; at least one mirror, Provided on the second side of the display; and a front cover disposed on the first side of the display, the front cover having a reflective area, wherein the display emits an image light from the first side, the image light Reflecting to the mirror surface and reflecting the mirror surface to the at least one mirror, the at least one mirror reflects the image light to the reflective area of the front cover, whereby a virtual image and a virtual image of the image light are present in the reflective area The actual image is combined into a virtual image, wherein the at least one mirror includes a first mirror and a second mirror, and the image light includes a left eye image light and a right eye image light, and the left eye image light is used by the mirror surface Reflected to the first mirror, the right eye image light is reflected by the specular surface to the second mirror, and the left eye image light and the right eye image light are emitted by the same display. The virtual reality image integration device according to claim 1, wherein the front cover has a reflective layer comprising a plurality of high and low refractive index staggered coatings, and the average reflectance of the unpolarized light of 400 nm to 700 nm is greater than 50. %. The virtual reality image integration device of claim 1, wherein the reflective area of the front cover comprises a left eye reflection area and a right eye reflection area, and the first mirror reflects the left eye image light to the The left eye reflection area, the second mirror reflects the right eye image light to the right eye reflection area. The virtual reality image integration device of claim 3, wherein the left eye image light and the right eye image light are focused and imaged at a distance of the front cover from a side of the display. The virtual reality image integration device of claim 4, wherein the distance is substantially 1 meter. The virtual reality image integration device of claim 3, wherein the content of the left eye image light and the content of the right eye image light have a parallax, whereby the virtual image comprises a three-dimensional object. The virtual reality image integration device of claim 1, wherein the display has a display surface to emit the image light, and an angle between the display surface and a surface of the front cover is 45 degrees or less. The virtual reality image integration device of claim 1, wherein the mirror is disposed between the display and the front cover, the mirror The angle between the face and a surface of the front cover is 45 degrees or less. The virtual reality image integration device of claim 1, further comprising: a support member for abutting against a nose of the user, wherein the at least one mirror is integrated on the support member.