9 Wearable computer hardware; computer hardware for virtual, augmented and mixed reality applications and environments; scientific, photographic, cinematographic, optical, and teaching apparatus and instruments, namely, hardware and downloadable software for use in enabling computers, handheld consoles, tablet computers, mobile devices, and mobile phones to provide augmented and mixed reality world experiences; apparatus for recording, namely, audio recorders and video recorders; data processing apparatus; computer central processing units; wearable computing devices in the nature of virtual, augmented and mixed reality headsets comprised primarily of software and display screens for connection to computers, tablet computers, mobile devices, and mobile phones in order to enable augmented and mixed reality world experiences; virtual reality glasses in the nature of goggles for enabling augmented and mixed reality world experiences; 2-dimensional and 3-dimensional head-mounted video displays; human computer interface hardware, namely, computer headsets, remote curser controls for computers for connecting with computers and portable computers; computer hardware; video display hardware that may be worn on the body; downloadable video display software; near-eye display optics, namely, optical receivers