Detachable wearable electronic eyeglasses and head mounted gear with a plurality of electronic functions and interchangeable electronic function, and a wearable computer with optimal weight distribution and stretchable arms.

A flexible temple structure includes a lens surface, a frame and two temples. The structure further includes two first connecting portions respectively provided on each of two corresponding ends of the frame, and two second connecting portions individually provided at one end of each of the temple. Each of the first connecting portion includes a main body, a projecting block, and a shaft post. Each second connecting portion includes an embedded mouth, an accommodating space, and a guide slot. The guide slot includes a fastening section, and a securing section connected with the fastening section. The projecting block/the shaft post are allowed to enter the accommodating space/the guide slot through the embedded mouth, and an appropriate resistance force is provided by the fastening section to allow the shaft post being operably retained into the securing section and the shaft post being pivoted in the securing section.

Disclosed is a method for comparing first and second ophthalmic lenses, including: a first optical function providing step, during which a first optical function of a first ophthalmic lens LI is provided, the first optical function including at least a first set of values of an optical parameter Gj, the values of the first set of values corresponding to the values of the optical parameter of the first ophthalmic lens in a set of gaze directions, a similar second optical function providing step directed to a second ophthalmic lens L2, a subsets determining step, during which at least a first and a second subset of gaze directions are selected, a comparison step for each subset of gaze directions, an assignment step, during which a subset status is assigned to each subset of gaze directions, the subset status being selected among at least three levels.

A slip-resistant eyewear system comprising an eyewear frame generally comprises a nosepiece comprising a nosepiece material configured to couple to a bridge of an eyewear frame. The frame comprises first and second hinges coupled to the eyewear frame which are also coupled to first and second spring-loaded tension adjusters. First and second bows are coupled to first and second tension adjusters. A unitary eyewear retainer comprises a first end configured to couple to the first bow and a second end configured to couple to a second bow such that a tension is maintained on the unitary eyewear retainer when the unitary eyewear retainer extends around a back of a head of a user.

An eye glass retention system that includes an eyeglass frame comprising a lens frame and first and second temple arms attached at a proximal end to the lens frame at opposing ends of the lens frame. At least one of the first and second temple arms has a temple arm cavity extending lengthwise of at least a portion of the at least one temple arm with a distal opening proximate a distal end of the at least one temple arm. A central post resides within the temple arm cavity extending axially of the temple arm cavity with a space surrounding the central post between the central post and an interior wall of the temple arm cavity. A retention band has a first and a second end. At least one of the first and second ends has an opening into a retention band cavity defined by a retention band sidewall extending lengthwise of at least a portion of the retention band. The retention band is configured so that the inner surface of the sidewall contracts inward when subject to axial tension and expands outward when subject to axial compression. The central post within the temple arm cavity is received in the retention band cavity through the opening of the retention band cavity and the retention band sidewall is received in the space surrounding the central post.

Safety glasses having integrated correction lenses, wherein connecting means in the style of retaining frames are arranged in or on the safety glasses in order to accommodate the correction lenses, comprising adapter rings as compensating bodies between the curvature of the outer contour of the safety glasses and the curvature of the inserted correction lenses, wherein the correction lenses of different power are matched to the adapter rings in a uniformly accurately fitting manner at the periphery of the correction lenses in the curvature and shape of the correction lenses and different powers of correction lenses can be inserted into the adapter rings in the space between the safety glasses and the inner curvature of the adapter rings, wherein the adapter rings are thicker in the nasal region and taper temporally, approximately in a wedge shape.

A prescriptive see-through eyepiece includes a meniscus lens body and an optical combiner. The meniscus lens body has an external scene side with a convex curvature and an eye-ward side with a concave curvature. The optical combiner is disposed within the meniscus lens body to combine image light incident through the eye-ward side with external scene light incident through the external scene side into a combined image. The optical combiner is partially reflective and imparts substantially no lensing power to the external scene light passing through. The optical combiner along with the concave curvature of the eye-ward side are configured to impart prescriptive lensing to the image light while the convex curvature of the external scene side and the concave curvature of the eye-ward side are configured to impart the prescriptive lensing to the external scene light.

Implementations of a counterweight device for eyeglasses are provided. In some implementations, a counterweight device may be secured to the backend of each temple and thereby remove some to all weight of the eyeglasses from the nose and/or cheeks of the wearer. In some implementations, a pair of counterweight devices may be used to counterbalance the weight of a pair of eyeglasses. In some implementations, a counterweight device may comprise an elastic loop attached to a weight by a connector. In some implementations, a counterweight device may include fasteners configured to removably secure a weight to an elastic loop or to another weight dangling from an elastic loop. In this way, through the use of threaded fasteners, the overall weight and/or look of a counterweight device may be changed by the wearer. In some implementations, a lanyard may be used in conjunction with a pair of counterweight devices.

Provided is a spectacle lens including multilayer films on both surfaces of a lens substrate, in which a sum of mean reflectances on both surfaces of the spectacle lens in a wavelength band of 360 to 400 nm is 6.0% or less, a sum of the mean reflectances on both surfaces of the spectacle lens in a wavelength band 400 to 440 nm is 20.0% or more, and a sum of the mean reflectances on both surfaces of the spectacle lens in a wavelength band 480 to 680 nm is 2.0% or less.

A pair of eye goggles is provided. The pair of eye goggles includes a nosepiece fittable over a portion of a wearer's face, the nosepiece comprising one or more strands, at least a portion of the nosepiece comprising a phase change material, wherein a shape of the nosepiece changes upon an application of an energy to the phase changing portion to conform to the face; and a pair of eyepieces connected to the nosepiece.