Abstract: Illuminations systems that separate different colors into laterally displaced beams may be used to direct different color image content into an eyepiece for displaying images in the eye. Such an eyepiece may be used, for example, for an augmented reality head mounted display. Illumination systems may be provided that utilize one or more waveguides to direct light from a light source towards a spatial light modulator. Light from the spatial light modulator may be directed towards an eyepiece. Some aspects of the invention provide for light of different colors to be outcoupled at different angles from the one or more waveguides and directed along different beam paths.

Abstract: This disclosure describes a wearable display system configured to project light to the eye(s) of a user to display virtual (e.g., augmented reality) image content in a vision field of the user. The system can include light source(s) that output light, spatial light modulator(s) that modulate the light to provide the virtual image content, and an eyepiece configured to convey the modulated light toward the eye(s) of the user. The eyepiece can include waveguide(s) and a plurality of in-coupling optical elements arranged on or in the waveguide(s) to in-couple the modulated light received from the spatial light modulator(s) into the waveguide(s) to be guided toward the user's eye(s). The spatial light modulator(s) may be movable, and/or may include movable components, to direct different portions of the modulated light toward different ones of the in-coupling optical elements at different times.

Abstract: A method for manufacturing a semiconductor device includes: forming a first fin portion and a second fin portion on a semiconductor substrate, the first fin portion and the second fin portion being spaced apart from each other; and forming a first gate dielectric layer and a second gate dielectric layer on the first fin portion and the second fin portion, respectively, the first gate dielectric layer having a first thickness, the second gate dielectric layer having a second thickness different from the first thickness.

Abstract: A method and system for increasing dynamic digitized wavefront resolution, i.e., the density of output beamlets, can include receiving a single collimated source light beam and producing multiple output beamlets spatially offset when out-coupled from a waveguide. The multiple output beamlets can be obtained by offsetting and replicating a collimated source light beam. Alternatively, the multiple output beamlets can be obtained by using a collimated incoming source light beam having multiple input beams with different wavelengths in the vicinity of the nominal wavelength of a particular color. The collimated incoming source light beam can be in-coupled into the eyepiece designed for the nominal wavelength. The input beams with multiple wavelengths take different paths when they undergo total internal reflection in the waveguide, which produces multiple output beamlets.

Abstract: A near-field sensing information transmission and pairing system for air-land unmanned vehicles and a method thereof are disclosed. The unmanned aviation vehicle is driven to move along a forward route of an unmanned ground vehicle in advance, and continuously senses whether an obstacle or a traffic control appears in the forward route; when sensing the presence of the obstacle or the traffic control feature, the unmanned aviation vehicle generates and transmits a re-routing signal to the unmanned ground vehicle, an alternative route is calculated to replace the original forward route based on map information, a current coordinate, an obstacle coordinate and a destination coordinate, so as to increase a reaction time of the unmanned ground vehicle, thereby achieving the technical effect of improving immediacy of the unmanned ground vehicle to avoid a roadblock.

Abstract: An optical device may include a light turning element. The optical device can include a first surface that is parallel to a horizontal axis and a second surface opposite to the first surface. The optical device may include a light module that includes a plurality of light emitters. The light module can be configured to combine light for the plurality of emitters. The optical device can further include a light input surface that is between the first and the second surfaces and is disposed with respect to the light module to receive light emitted from the plurality of emitters. The optical device may include an end reflector that is disposed on a side opposite the light input surface. The second surface may be inclined such that a height of the light input surface is less than a height of the side opposite the light input surface. The light coupled into the light turning element may be reflected by the end reflector and/or reflected from the second surface towards the first surface.

Abstract: A stair lifting chair includes a chair, a first guiding assembly, and a second guiding assembly. The first guiding assembly includes a guiding frame and a first cleaning member. The first guiding frame includes a first inner space for the first rail passing therethrough. The first cleaning member is disposed at the first guiding frame to clean a first outer surface of the first rail. The second guiding assembly includes a second guiding frame and a second cleaning member. The second guiding frame includes a second inner space for the second rail passing therethrough. The second cleaning member is disposed at the second guiding frame to clean a second outer surface of the second rail.

Abstract: An avatar carrier generating system for metaverse and method thereof are disclosed. Before a living body enters a metaverse, a sensing element senses the living body to generate a physiological feature, and after a real-name identity message is received, the real-name identity message and the physiological feature are converted into metadata compliant with a non-fungible token standard; the non-fungible token, which is owned by the living body, is generated on the blockchain based on the metadata. When the living body enters the metaverse, an avatar carrier for entering the metaverse is generated based on the metadata of the non-fungible token, and when the avatar carrier receives an identification request, the avatar carrier is permitted to provide at least one of the physiological feature and the real-name identity message, so as to achieve the effect of improving identifiability and authentication of the avatar carrier of the metaverse.

Abstract: Methods and systems for depth-based foveated rendering in a display system are disclosed. The display system may be an augmented reality display system configured to provide virtual content on a plurality of depth planes using different wavefront divergence. Some embodiments include monitoring eye orientations of a user of the display system. A fixation point can be determined based on the eye orientations, the fixation point representing a three-dimensional location with respect to a field of view. Location information of virtual object(s) to present is obtained, with the location information including three-dimensional position(s) of the virtual object(s). A resolution of the virtual object(s) can be adjusted based on a proximity of the location(s) of the virtual object(s) to the fixation point. The virtual object(s) are presented by the display system according to the adjusted resolution(s).

Abstract: A method of operating an optical system includes identifying a set of angle dependent transmittance levels for light passing through pixels of a segmented dimmer exhibiting viewing angle transmittance variations for application of a same voltage to all pixels of the segmented dimmer. The method also includes determining a set of voltages to apply to pixels of the segmented dimmer. Determining the set of voltages includes using the set of angle dependent transmittance levels. The method includes applying the set of voltages to the pixels of the segmented dimmer to achieve light transmittance through the segmented dimmer corresponding to the set of angle dependent transmittance levels.

Abstract: A system for companion robot with 3D display device and a method are disclosed. In the system, a companion robot continuously senses a user behavior status and an input speech, converts the input speech to a text, transmits the text and the user behavior status to finite state machines of a server-end host to perform parsing and transition, so that the server-end host generates a chat message having an emotion label, transmits the chat message to an AI device, receives and stores the companion conversation message to a companion conversation list; the companion robot selects companion conversation message from the companion conversation list as an output message, and convert the output message to speech which is broadcasted by a speaker; while broadcasting the output message, the companion robot continuously obtains image data from a multi-source image and outputs the image data to a 3D display device for displaying.

Abstract: A generative chatbot system for virtual community and a method thereof are disclosed. In the system, a client-end host is linked to a virtual community to receive a chat message; when the trigger signal is detected, the client-end host generates an operation interface for inputting the customized instruction, and transmits the chat message and the customized instruction to the server-end host, which can integrate the chat message as the context message having a timing logic and transmit the context message and the customized instruction to an Al device to generate a response message. The server-end host stores the response message received from the artificial intelligence device to a response list, so that the client-end host can select one of the response messages from the response list and output the selected response message to the virtual community.

Abstract: A system of generative chatbot in a real multi-person response situation and a method thereof are disclosed. In the system, speech signals are sensed and converted into feature vectors and text messages, and a timing label and a classification label are embedded into the text messages, the text messages are stored as a context message, so that a server-end host can determine a timing logic of a multi-person conversation, and the context message and the timing logic are transmitted to an artificial intelligence device which determines a current conversation stage, a topic evolution, predicts a conversation development, and actively generates and stores a response message to the server-end host; the server-end host can filter out the response messages and transmit the filtered response message to a portable device for output. Therefore, the technical effect of improving conversational initiative and response efficiency can be achieved.

Abstract: A stress modulating device including a semiconductor substrate, a first insulating layer formed over a first side of the semiconductor substrate, a second insulating layer formed over the first insulating layer, a third insulating layer formed over a second side of the semiconductor substrate, a fourth insulating layer formed over the third insulating layer, and a fifth insulating layer formed over the fourth insulating layer for incorporation in multi-stack package assemblies for reducing stress, strain, and/or warpage on the active elements within the package assembly.

Abstract: A device for viewing a projected image includes an input coupling grating operable to receive light related to the projected image from a light source and an expansion grating having a first grating structure characterized by a first set of grating parameters varying in one or more dimensions. The expansion grating structure is operable to receive light from the input coupling grating and to multiply the light related to the projected image. The device also includes an output coupling grating having a second grating structure characterized by a second set of grating parameters and operable to output the multiplied light in a predetermined direction.

Abstract: A wearable display system includes an eyepiece stack having a world side and a user side opposite the world side. During use, a user positioned on the user side views displayed images delivered by the wearable display system via the eyepiece stack which augment the user's field of view of the user's environment. The system also includes an optical attenuator arranged on the world side of the of the eyepiece stack, the optical attenuator having a layer of a birefringent material having a plurality of domains each having a principal optic axis oriented in a corresponding direction different from the direction of other domains. Each domain of the optical attenuator reduces transmission of visible light incident on the optical attenuator for a corresponding different range of angles of incidence.

Abstract: In some embodiments, an augmented reality system includes at least one waveguide that is configured to receive and redirect light toward a user, and is further configured to allow ambient light from an environment of the user to pass therethrough toward the user. The augmented reality system also includes a first adaptive lens assembly positioned between the at least one waveguide and the environment, a second adaptive lens assembly positioned between the at least one waveguide and the user, and at least one processor operatively coupled to the first and second adaptive lens assemblies. Each lens assembly of the augmented reality system is selectively switchable between at least two different states in which the respective lens assembly is configured to impart at least two different optical powers to light passing therethrough, respectively.

Abstract: Implementations described herein provide various implementations of gate based alignment patterns for semiconductor process alignment of a substrate on which semiconductor devices are manufactured. In some implementations described herein, a gate based alignment pattern may be included in an alignment mark region in a semiconductor device that is manufactured on the substrate. The alignment mark region may include a plurality of gate structures that are etched to form gate based alignment pattern. The use of the gate based alignment pattern may reduce the likelihood of and/or may prevent the gate based alignment pattern from becoming obscured or covered by residual material byproducts from one or more semiconductor processing operations that are performed to form various layers and/or structures of the semiconductor device.

Abstract: Images perceived to be substantially full color or multi-colored may be formed using component color images that are distributed in unequal numbers across a plurality of depth planes. The distribution of component color images across depth planes may vary based on color. In some embodiments, a display system includes a stack of waveguides that each output light of a particular color, with some colors having fewer numbers of associated waveguides than other colors. The waveguide stack may include multiple pluralities (e.g., first and second pluralities) of waveguides, each configured to produce an image by outputting light corresponding to a particular color. The total number of waveguides in the second plurality of waveguides may be less than the total number of waveguides in the first plurality of waveguides.

Abstract: Illuminations systems that separate different colors into laterally displaced beams may be used to direct different color image content into an eyepiece for displaying images in the eye. Such an eyepiece may be used, for example, for an augmented reality head mounted display. Illumination systems may be provided that utilize one or more waveguides to direct light from a light source towards a spatial light modulator. Light from the spatial light modulator may be directed towards an eyepiece. Some aspects of the invention provide for light of different colors to be outcoupled at different angles from the one or more waveguides and directed along different beam paths.