An electronic apparatus includes a controller, a display device coupled to the controller, and a detector coupled to the controller. The display device displays virtual environmental images. The detector detects a spatial parameter of a local space of the electronic apparatus in which the electronic apparatus is located. The controller receives the spatial parameter and controls the display device based on the spatial parameter.

A head-mountable device can effectively manage heat with a motor assembly that efficiently and accurately senses a temperature of a motor. A temperature sensor can be provided on an outer surface (e.g., case) of the motor. A flex circuit can be operably connect both the motor and the temperature sensor to a controller of the head-mountable device. The flex circuit can have a first side coupled to the outer surface of the case, a second side supporting the temperature sensor, and thermally conductive vias extending from the first side to the second side to conduct heat from the case to the sensor. The flex circuit can further include a memory comprising calibration data of the temperature sensor and a connector for outputting temperature data based on the temperature sensor and the calibration data of the memory.

An ultra-thin lens for augmented reality (AR) display includes: a primary lens, an intermediate lens, and a secondary lens. After entering the primary lens, image light undergoes two total reflections, then enters the intermediate lens and is partially reflected, then is directed to a human eye through the intermediate lens and the primary lens. The secondary lens is configured on the other side of the intermediate lens, and environmental light is directed to the human eye through the secondary lens, the intermediate lens, and the primary lens. According to the ultra-thin lens, total reflection and light splitting functions of the image light are realized respectively through the primary lens and the intermediate lens, so that the entire lens has a thin and light profile.

A three-dimensional display device includes a display panel, a barrier panel, and a controller that controls the display panel and the barrier panel. The controller defines multiple first image areas and multiple second image areas in the display panel, causes the first image areas to be at first intervals in a first direction, causes displaying of a first image viewable by a first eye of a user in the first image areas and a second image viewable by a second eye of the user in the second image areas, defines, in the barrier panel, multiple first transmissive areas transmissive to the image light at a first transmissivity and multiple second transmissive areas transmissive to the image light at a second transmissivity, causes the first transmissive areas to be at second intervals in the first direction, and performs an irregular process at third intervals in the first direction.

A method and apparatus for monitoring a surface temperature of eyewear proximate a processor to understand the surface temperature as a function of computer instructions, such as when the computer instructions are modified during software design. A sensor is coupled to the eyewear proximate the processor, such as at a temple of the eyewear including the processor, using one or more layers of tape. A server provides instructions to the processor for execution, such as instructions of an application, which instructions vary the utilization of the processor. A testing device, such as a digital multi-meter, is coupled to the sensor, as well as the server, and displays the surface temperature as a function of the processor utilization. The surface temperature of the eyewear is monitored to ensure the surface temperature does not exceed a temperature threshold.

A head-mounted electronic device including a body, a circuit board, and a fan is provided. The body includes a first cover, a second cover, and an annular side wall. The annular side wall is encircled to form two opposite openings, and the first cover and the second cover are assembled on the openings. The first cover has a main air outlet and a pair of first air inlets. The second cover has a pair of second air inlets. The circuit board is disposed in the body and is located between the first cover and the second cover. The fan is disposed on the circuit board and is located in the body. An air intake of the fan faces the first cover. The fan draws air from the pair of first air inlets and the pair of second air inlets, and blows the air out of the main air outlet.

Disclosed herein is an apparatus for preventing fogging in a head worn apparatus, in accordance with some embodiments. Further, the head worn apparatus covers a portion of a head of a user. Further, the apparatus comprises an elongated body, an attachment mechanism, and a fan assembly. Further, the elongated body extends from a first end of a first portion to a second end of a second portion. Further, the elongated body is curved around an axis perpendicular to the elongated body making the first portion substantially perpendicular to the second portion. Further, the elongated body tapers from the first end towards the second end. Further, the attachment mechanism is configured to be coupled with a portion of the head worn apparatus. Further, the at least one fan assembly is configured for circulating airflow in the head worn apparatus.

According to at least one aspect, the present disclosure provides a head-up display device comprising: a housing; a plurality of light sources housed at the housing and configured to emit light; a display panel configured to display an image based on the light emitted from the plurality of light sources; and a Fresnel lens configured to magnify the image displayed at the display panel. According to another aspect, the present disclosure provides a head-up display device configured to project an image on a windshield of a vehicle, comprising: a housing; a plurality of light sources housed at the housing and configured to emit light; and a display panel configured to display an image based on the light emitted from the plurality of light sources, wherein the plurality of light sources are divided into a plurality of groups, each group being supplied with a current having a mutually different magnitude.

A mixed reality system may comprise a head-mounted display (HMD) device with a location sensor and a base station, mounted a predetermined offset from the location sensor, that emits an electromagnetic field (EMF). An EMF sensor affixed to an object may sense the EMF, forming a magnetic tracking system. The HMD device may determine a relative location of the EMF sensor therefrom and determine a location of the EMF sensor in space based on the relative location, the predetermined offset, and the location of the location sensor. An optical tracking system comprising a marker an optical sensor configured to capture optical data may be included to augment the magnetic tracking system based on the optical data and a location of the optical sensor or marker. The HMD device may display augmented reality images and overlay a hologram corresponding to the location of the EMF sensor over time.

An optical apparatus has an electroluminescent display energizable to emit image-bearing light along an optical axis. A reflective polarizer reflects light of a first polarization state and transmit light of a second polarization state orthogonal to the first polarization state. A quarter wave plate in the path of transmitted light of the second polarization state imparts retardance to conveyed light. A curved, partially reflective surface transmits incident light. An exit lens directs light from the curved, partially reflective surface to an exit pupil, with an eye relief of less than the focal length of an eye, wherein the optical apparatus forms an image with a field of view exceeding 40 degrees horizontally and 20 degrees vertically. The optical apparatus is configured for seating directly against the face of the viewer, to form the image peripheral to a primary field of view.