Matrixed Reality Technology Co., Ltd.

Lenovo (beijing) Limited

Xiaobin Liang

Bing Xiao

Chi Xu

Jianguo Li

Xiangbo Lv

The disclosure relates to an optical system for an augmented reality apparatus, comprising: an image projection source; and a polarizing beam splitter. The polarizing beam splitter is arranged such that light emitted from the image projection source is able to be non-perpendicularly incident on the beam splitting side and be at least partially reflected. The polarizing beam splitter is configured such that a polarized light component passes through the polarizing beam splitter and is transmitted through the transmission side thereof, and a polarized light component is reflected from the beam splitting side. The optical system also comprises a polarizer disposed between the image projection source and the polarizing beam splitter, and the polarizer is configured to allow polarized light, whose polarization is in the second direction, to be transmitted therethrough and polarized light, whose polarization is in the first direction to be absorbed.

Augmented reality apparatus and optical system therefor

The disclosure relates to an optical system for an augmented reality apparatus, comprising: an image projection source; and a polarizing beam splitter. The polarizing beam splitter has a beam splitting side adjacent to the image projection source and a transmission side facing away from the image projection source. The polarizing beam splitter is arranged such that light emitted from the image projection source is able to be non-perpendicularly incident on the beam splitting side and be at least partially reflected. The polarizing beam splitter is configured such that when light is incident on the beam splitting side, a polarized light component passes through the polarizing beam splitter and is transmitted through the transmission side thereof, and a polarized light component is reflected from the beam splitting side. The optical system also comprises a polarizer disposed between the image projection source and the beam splitting side of the polarizing beam splitter.

The disclosure relates to an augmented apparatus, and an optical system and a semi-reflector for the same. The optical system comprises: an image projection source; a beam splitter, the beam splitter having a beam splitting side adjacent to the image projection source and a transmission side facing away from the image projection source; and a semi-reflector, the semi-reflector being arrange adjacent to the beam splitting side and being downstream of the beam splitting side in an optical path along which light emitted from the image projection source is reflected by the beam splitting side, the beam splitter being arranged such that the light emitted from the image projection source is able to be at least partially reflected by the beam splitting side towards the semi-reflector, wherein the semi-reflector comprises a substrate and a semi-reflective film on a distal surface of the substrate. According the present application's technical means, the design freedom of the whole optical system can be increased and the field of view can be enlarged, which facilitates the final imaging result in the human eye.

Augmented reality apparatus, and optical system and semi-reflector therefor

An augmented reality (AR) display device is described. The display device includes a projection source; a first optical path having a first beamsplitter and a first reflector; and a second optical path having a second beamsplitter and a second reflector. The first and second reflectors each include a reflective film. Virtual image light emitted from the projection source and carrying virtual image information first passes through the first optical path where it is reflected at least twice and transmitted at least once by the first beamsplitter and the first reflector, then enters the second optical path where it is transmitted at least once and reflected at least twice by the second beamsplitter and the second reflector, and enters a human eye. Scene light from a real scene enters the human eye through the second optical path. A wearable AR system can include the AR display device and the projection source.

Wearable AR system and AR display device

The disclosure relates to an optical system for an augmented reality apparatus, comprising: an image source; and a polarizing beam splitter. The polarizing beam splitter has a beam splitting side adjacent to the image source and a transmission side facing away from the image source. The polarizing beam splitter is arranged such that light emitted from the image source is able to be non-perpendicularly incident on the beam splitting side and be at least partially reflected. The polarizing beam splitter is configured such that when light is incident on the beam splitting side, a polarized light component, whose polarization is in a first direction, passes through the polarizing beam splitter and is transmitted through the transmission side thereof, and a polarized light component, whose polarization is in a second direction perpendicular to the first direction, is reflected from the beam splitting side. The optical system also comprises a polarizer disposed between the image source and the beam splitting side of the polarizing beam splitter, and the polarizer is configured to allow polarized light, whose polarization is in the second direction, to be transmitted therethrough and polarized light, whose polarization is in the first direction to be absorbed.

The application provides an augmented reality display device comprising a projection source module () and an optical path module, wherein the projection source module () comprises a projection source (), the projection source () has a curved light outgoing surface (), virtual image light (VL) is projected out of the projection source () via the curved light outgoing surface (), and the optical path module comprises a beamsplitter () and a reflector (), wherein the virtual image light (VL) projected out of the projection source module () is incident on the beamsplitter (), reflected by the beamsplitter () onto the reflector (), reflected by the reflector (), and then transmitted through the beamsplitter (), entering a human eye (E) eventually. The application also provides a wearable augmented reality system comprising the augmented reality display device and a projection source module for the augmented reality display device.

Wearable AR system, AR display device and its projection source module

The application provides an augmented reality display device comprising a projection source module and an optical path module, the projection source module comprising a projection source () and a beam shaping element () which are integrated into a unitary piece, and the optical path module comprising a beamsplitter () and a reflector (), wherein virtual image light (VL) emitted from the projection source () and carrying virtual image information is emitted out of the projection source module after being shaped by the beam shaping element (), projected onto the beamsplitter () first, then reflected onto the reflector () by the beamsplitter (), then reflected by the reflector (), and enters a human eye (E) eventually, and scene light (AL) carrying real scene information enters the reflector () from an outside of the reflector (), and is transmitted through the reflector () and the beamsplitter () into the human eye (E). The application also provides a wearable augmented reality system comprising the augmented reality display device and the projection source module for the augmented reality display device.

Provided are an optical system for an augmented reality apparatus and an augmented reality apparatus. The optical system includes an image source; a polarizing beam splitter including a polarizing beam splitting film and a polarizing film; a polarizer disposed between the image source and the beam splitting side of the polarizing beam splitter; a wave plate adjacent to the beam splitting side; a semi-reflector located downstream of the wave plate in an optical path of the reflected light; and an additional wave plate and an additional polarizer which are sequentially located distal to the semi-reflector. The image source has a planar image source for emitting light, wherein a plane where the beam splitting side of the beam splitter component locates is at a first angle (&#x3b2;) relative to a normal of the image source, the first angle has a value between 11&#xb0; and 79&#xb0;.

The disclosure relates to an augmented reality apparatus and an optical system therefor. The optical system comprises an image source; a beam splitter component having a beam splitting side adjacent to the image source and a transmission side facing away from the image source; a wave plate adjacent to the beam splitting side, the beam splitter component being arranged in such a way that light emitted from the image source is able to be non-perpendicularly incident on the beam splitting side and at least partially reflected toward the wave plate; and a semi-reflector located downstream of the wave plate in an optical path of the reflected light, wherein the beam splitter component is configured in such a way that when the light emitted from the image source is incident on the beam splitting side, a polarized light component, whose polarization is in a first direction, passes through the beam splitter component to be transmitted through the transmission side, and a polarized light component, whose polarization is in a second direction perpendicular to the first direction, is reflected by the beam splitting side toward the wave plate, and wherein the beam splitter component is also configured in such a way that when light is incident on the transmission side, a polarized light component of the light polarized in the first direction is able to pass through the beam splitter component to be transmitted through the beam splitting side, and a polarized light component of the light polarized in the second direction is able to be absorbed in the beam splitter component, wherein the wave plate is preferably a quarter-wave plate. Using the inventive technical means, influence of unwanted light on the image quality can be eliminated and in the meanwhile influence of stray light can be eliminated.

The present disclosure provides an electronic device including a device body being maintained at a preset position relative to an eye of a user. The device body further includes: a display unit for emitting light corresponding to a display content; and a lens group having a side surface facing the display unit. The light emitted from the display unit is reflected by the side surface to be incident on the eye of the user.

Growing community of inventors

Beijing, China

Xiaobin Liang