An embodiment includes an auto-darkening apparatus for supporting welding performed by a human welder. The auto-darkening apparatus includes a housing configured to be removably installed into a welding helmet. The auto-darkening apparatus also includes an ADF lens assembly configured to transition from an un-darkened state to a darkened state in response to light from an arc being formed between a welding electrode and a work piece during a welding process. The auto-darkening apparatus further includes a magnification assembly integrated with the ADF lens assembly within the housing. The magnification assembly is configured to provide magnification of light coming through the ADF lens assembly. The magnification is continuously user-adjustable from a defined lower level of magnification to a defined upper level of magnification.

Disclosed are energy systems configured to direct energy according to a four-dimensional (4D) plenoptic function. In general, the energy systems include a plurality of energy devices, an energy relay system having one or more relay elements arranged to form a singular seamless energy surface, and an energy waveguide system such that energy can be relayed along energy propagation paths through the energy waveguide system to the singular seamless energy surface or from the singular seamless energy surface through the energy relay system to the plurality of energy devices.

A smart phone magnifier assembly for magnifying imagery displayed on a smart phone includes a magnifying screen that has a width ranging between approximately 3.0 inches and 5.0 inches and a length ranging between approximately 5.0 inches and 8.0 inches. In this way the magnifying screen can fit on a screen of a smart phone thereby facilitating the magnifying screen to magnify and thusly enhance visibility of imagery displayed on the screen. An adhesive layer is bonded to the magnifying screen for adhesively engaging the smart phone screen. Thus, the adhesive layer releasably retains the magnifying screen on the smart phone screen.

A cover for a display screen is disclosed herein. The cover includes a lens layer and a protective layer. The cover is for attachment to a display screen of an electronic device, particularly a cell phone. The lens layer includes a corrective means such as a prescription lens configured to assist users in viewing their phone screen without glasses/lenses.

The multifunctional pocket knife (1) is composed of a handle (2) formed by two joined-together flanks (3, 3) that provide at least one stowage space (4) for tools that each pivot about link pins (5, 5) arranged at each end of the handle (2). It is characterized in that it comprises a planar tick-removal instrument (6) that pivots about one of said link pins (5, 5) and that extends along the longitudinal axis of the pocket knife.

Tick-removal instrument (6) designed to be incorporated into a multifunctional pocket knife (1).

A comb includes a handle and a body extending from the handle. A plurality of coplanar teeth extend perpendicular from a side of the body. A magnifying lens is coupled to the body. The magnifying lens is a convex lens that produces a magnified image of an object. A barber or hair stylist may use the magnifying lens to magnify hair follicles, allowing the barber or hair stylist to cut the hair more precisely.

An optical adapter includes a support, which can be removably coupled to an image acquisition device. The support has a substrate made of substantially transparent material. The substrate has a proximal surface intended for facing towards the device and a distal surface located at a distance from the proximal surface and intended for facing towards an object to be observed. The support also has a lens located in a seat obtained in the substrate and facing towards the objective of the device. In addition, the support has a reflector located laterally relative to the lens and arranged for facing towards a light source integrated into the device and conveying the light emitted by the light source in a transversal direction towards the lens and past the distal surface.

A hair weave removal tool includes a handle, an elongated member, a magnifier, and a light source. The elongated member extends from an end of the handle. The elongated member includes an extension extending outwardly therefrom and a guide member located laterally adjacent the extension. The magnifier is pivotably coupled to the handle laterally adjacent the elongated member. The light source is coupled to the handle, and is configured to illuminate an area above the extension.

Disclosed embodiments include an energy waveguide system having an array of waveguides and an energy inhibiting element configured to substantially fill a waveguide element aperture and selectively propagate energy along some energy propagation paths through the array of waveguides. In an embodiment, such an energy waveguide system may define energy propagation paths through the array of waveguides in accordance to a 4D plenoptic system. In an embodiment, energy propagating through the energy waveguide system may comprise energy propagation for stimulation of any sensory receptor response including visual, auditory, somatosensory systems, and the waveguides may be incorporated into a holographic display or an aggregated bidirectional seamless energy surface capable of both receiving and emitting two dimensional, light field or holographic energy through waveguiding or other 4D plenoptic functions prescribing energy convergence within a viewing volume.

A method determines four dimensional (4D) plenoptic coordinates for content data by receiving content data; determining locations of data points with respect to a first surface to creating a digital volumetric representation of the content data, the first surface being a reference surface; determining 4D plenoptic coordinates of the data points at a second surface by tracing the locations the data points in the volumetric representation to the second surface where a 4D function is applied; and determining energy source location values for 4D plenoptic coordinates that have a first point of convergence.