Abstract: A lens assembly, related methods and constituent optical elements are described. The assembly may be used to direct and focus light for various applications. In one instance, the lens assembly is used in conjunction with one or more sources of light such as projected images or video as part of a virtual reality system. The lens assembly includes two or more optical elements arranged to receive light or direct light through different spatial regions of the assembly at different focal powers corresponding to a first user viewing zone and a second user viewing zone. In one instance, the first user viewing zone is a peripheral viewing zone and the second viewing zone is a primary or non-peripheral viewing zone (or vice versa).

Abstract: A lens assembly, related methods and constituent optical elements are described. The assembly may be used to direct and focus light for various applications. In one instance, the lens assembly is used in conjunction with one or more sources of light such as projected images or video as part of a virtual reality system. The lens assembly includes two or more optical elements arranged to receive light or direct light through different spatial regions of the assembly at different focal powers corresponding to a first user viewing zone and a second user viewing zone. In one instance, the first user viewing zone is a peripheral viewing zone and the second viewing zone is a primary or non-peripheral viewing zone (or vice versa).

Abstract: A head mount display for use with a virtual reality system allows for an automatic adjustment of an inter-lens distance based on a particular user's inter-pupillary distance (IPD). The IPD for the user is measured, for example by taking an image of the user in a controlled environment and calculating the distance between the user's pupils within the image. Once the IPD is known, a desired inter-lens distance for the particular user may be defined based on user IPD. A computing device in communication with a head mount display unit may automatically adjust the inter-lens distance to match the desired inter-lens distance. A user's IPD and desired inter-lens distance may be stored for the user in a user account. As such, whenever the user participates in the virtual reality system, a head mount display used by the user may be configured with the user's desired inter-lens distance.

Abstract: A portable volatile material dispenser includes a housing having a top wall and at least one side wall and an opening formed within the top wall of the housing. A volatile material actuator is disposed within the housing and a manifold is in fluid communication with and extends between the volatile material actuator and the opening to move volatile material in the form of a mist from the volatile material actuator, through the manifold, and out the opening. A container holding a fluid is disposed within the housing and in fluid communication with the volatile material actuator. An air flow generator disposed within the housing and positioned to create a flow of air out of the dispenser through the opening for moving the mist from the dispenser.

Abstract: A system that provides a head mount display (HMD) unit that provides visual content, such as video, through a projection system incorporated within the head mount display unit. The projection system is positioned near a user's eye within the HMD and provides a visual experience that is higher resolution, has a higher refresh rate, runs cooler, requires less power, and provides a broader field of view than typical HMD units, such as an HMD which utilizes a curved display screen.

Abstract: A head mount display for use with a virtual reality system allows for an automatic adjustment of an inter-lens distance based on a particular user's inter-pupillary distance (IPD). The IPD for the user is measured, for example by taking an image of the user in a controlled environment and calculating the distance between the user's pupils within the image. Once the IPD is known, a desired inter-lens distance for the particular user may be defined based on user IPD. A computing device in communication with a head mount display unit may automatically adjust the inter-lens distance to match the desired inter-lens distance. A user's IPD and desired inter-lens distance may be stored for the user in a user account. As such, whenever the user participates in the virtual reality system, a head mount display used by the user may be configured with the user's desired inter-lens distance.

Abstract: A lens assembly, related methods and constituent optical elements are described. The assembly may be used to direct and focus light for various applications. In one instance, the lens assembly is used in conjunction with one or more sources of light such as projected images or video as part of a virtual reality system. The lens assembly includes two or more optical elements arranged to receive light or direct light through different spatial regions of the assembly at different focal powers corresponding to a first user viewing zone and a second user viewing zone. In one instance, the first user viewing zone is a peripheral viewing zone and the second viewing zone is a primary or non-peripheral viewing zone (or vice versa).

Abstract: The bar clamp comprises a first jaw connected to a slider, a clamp housing defining a second jaw, a driving mechanism operably associated with the housing and slider to drive the slider, a clamping mechanism operably associated with the housing and slider to brake and hold the slider, and a release mechanism operably associated with the clamping mechanism and slider to release the slider. The bar clamp may utilize different embodiments of a drive mechanism while also utilizing an improved clamping and release mechanism. The drive mechanism thus comprises either a driving lever grip or a driving wedge grip while the clamping mechanism comprises a clamping wedge grip. The clamping wedge grip utilizes pins, cams or balls to brake and hold the slider.

Abstract: A portable volatile material dispenser includes a housing having a top wall and at least one side wall and an opening formed within the top wall of the housing. A volatile material actuator is disposed within the housing and a manifold is in fluid communication with and extends between the volatile material actuator and the opening to move volatile material in the form of a mist from the volatile material actuator, through the manifold, and out the opening. A container holding a fluid is disposed within the housing and in fluid communication with the volatile material actuator. An air flow generator disposed within the housing and positioned to create a flow of air out of the dispenser through the opening for moving the mist from the dispenser.

Abstract: The dual-globe apparatus utilizes at least one indicator on a tool. The indicator comprises an outer vessel buoyantly supported within an inner vessel. In one embodiment, the outer vessel and inner vessel comprise spheres. In another embodiment, the outer vessel and inner vessel comprise spherical segments.

Abstract: The bar clamp comprises a first jaw connected to a slider, a clamp housing defining a second jaw, a driving mechanism operably associated with the housing and slider to drive the slider, a clamping mechanism operably associated with the housing and slider to brake and hold the slider, and a release mechanism operably associated with the clamping mechanism and slider to release the slider. The bar clamp may utilize different embodiments of a drive mechanism while also utilizing an improved clamping and release mechanism. The drive mechanism thus comprises either a driving lever grip or a driving wedge grip while the clamping mechanism comprises a clamping wedge grip. The clamping wedge grip utilizes pins, cams or balls to brake and hold the slider.

Abstract: The dual-globe level comprises at least one indicator located on a body. The body defines front and rear faces, a pair of opposing ends, and at least one longitudinal surface. The at least one indicator comprises an inner vessel located within an outer vessel, and more preferably, a substantially spherical inner globe located within an outer globe and buoyantly supported within the outer globe. The inner globe, viewable through the outer globe and defining an equator around its outer periphery, is buoyantly biased within to maintain the equator in a substantially horizontal position. The equator is in operable registry relation with a first indicia to indicate a position of the at least one longitudinal surface of the body in relation to a surface or line in question located adjacent thereto.

Abstract: A volatile material refill includes a container with a volatile material disposed therein, a plug assembly disposed within an opening, and a wick retained within the container by the plug assembly. The refill further includes an attachment connected to a top portion of the container for assisting in retaining the refill in at least one volatile material dispenser.

Abstract: A volatile material refill includes a container with a volatile material disposed therein, a plug assembly disposed within an opening of the container, a pivotal wick retained in the container by the plug assembly, and a sheath extending around at least a portion of the wick.

Abstract: A volatile material refill includes a container having a volatile material disposed therein, a plug assembly is disposed within an opening, and a wick retained in the container by the plug assembly. The refill further includes a multi-part attachment for connection to a neck portion of the container and adapted to assist in retaining the refill in at least one volatile material dispenser.

Abstract: The dual-globe level comprises at least one indicator located on a body. The body defines front and rear faces, a pair of opposing ends, and at least one longitudinal surface. The at least one indicator comprises an inner vessel located within an outer vessel, and more preferably, a substantially spherical inner globe located within an outer globe and buoyantly supported within the outer globe. The inner globe, viewable through the outer globe and defining an equator around its outer periphery, is buoyantly biased within to maintain the equator in a substantially horizontal position. The equator is in operable registry relation with a first indicia to indicate a position of the at least one longitudinal surface of the body in relation to a surface or line in question located adjacent thereto.

Abstract: A housing for a portable hand held device such as a palmtop computer uses a torsional latching system. The housing is made of front and rear housing laminated housing members. The torsional latch arrangement works in conjunction with a plurality of latch fingers along the edge to attach the front housing laminate with the rear housing laminate. The torsional latch arrangement has a pair of L-shaped latch ribs that engage with a T-shaped latch member by torsion of the L-shaped latch ribs into engagement with pockets adjacent the T-shaped latch member prevent movement of the two housing laminates in relation to one another.