A pair of eyeglasses includes a front with two lenses installed in the two openings thereof. Two lugs respectively extend from two ends of the front and each have a slot communicating with the opening corresponding thereto. Two threaded holes are respectively defined through the two ends of the front and communicate with the two slots. Two screws threadedly extend through the two threaded holes to narrow the slots to secure the two lenses in the front. The two lugs are clamped between the two connectors and two securing members by bolts extending through the securing members, the lugs and the two connectors, and connected with two positioning members. The lenses can be replaced by unscrewing the bolts and the screws.

A sporting-goods device capable of removably attaching to eyewear, specifically swimming goggles, and another object to prevent loss of the eyewear.

A sporting-goods device capable of removably attaching to eyewear, specifically swimming goggles, and another object to prevent loss of the eyewear.

A head-mounted display device includes an image display unit (300a, 300b) configured to emit image light, a light guide member (100a, 100b) configured to guide the image light and emit the image light to eyes of a wearer who wears the head-mounted display device, and a relay optical system (201a, 201b) arranged between the image display unit and the light guide member, and configured to relay the image light from the image display unit to the light guide member, and form an intermediate image at least once before the image light enters the light guide member.

A pair of eyeglasses includes a front with two lenses installed in the two openings thereof. Two lugs respectively extend from two ends of the front and each have a slot communicating with the opening corresponding thereto. Two threaded holes are respectively defined through the two ends of the front and communicate with the two slots. Two screws threadedly extend through the two threaded holes to narrow the slots to secure the two lenses in the front. The two lugs are clamped between the two connectors and two securing members by bolts extending through the securing members, the lugs and the two connectors, and connected with two positioning members. The lenses can be replaced by unscrewing the bolts and the screws.

A method of assembling an adjustable fluid-filled lens assembly comprising biaxially tensioning an elastomeric membrane to a surface tension of greater than 180 N/m, typically greater than 1000 N/m; thermally conditioning the tensioned membrane, e.g., for one hour at a temperature of about 80 C., to accelerate relaxation of the membrane; mounting the membrane to a peripheral support structure whilst maintaining the tension in the membrane; assembling the mounted membrane with one or more other components to form an enclosure with the membrane forming one wall of the enclosure; and thereafter filling the enclosure with a fluid. The membrane may be formed from an aromatic polyurethane, and the fluid may be a phenylated siloxane. In some embodiments, the membrane is able to hold a substantially constant surface tension of at least 180 N/m for a period of at least 12 months.

The present invention relates to an extension and strap for eyeglasses. More particularly, the present invention relates to an apparatus for holding eyeglasses onto a user's face that allows for eyeglasses to be put on and removed with only one hand. The present invention also includes a method of using the strap of the present invention to put on, retain in place, and remove eyeglasses using only one hand.

A wearable eyeglass holder that holds a temple of a folded pair of eyeglasses in a manner that resists the inadvertent unfolding of the held temple and the wearer's loss of the eyeglasses. The eyeglass holder has a connector that enables it to be attached, in a pendulous manner, to the wearer's neck, clothing, or other object. The eyeglass holder has an oblong body with a double convex shape and a longitudinal inner channel with two oblong openings on the same face of the body. A temple of a pair of eyeglasses, inserted through the upper opening, comes to rest upon a waist extending between the openings. The eyeglasses rest on the waist and a foot of the body provides a second contact point with the temple that maintains it in a closed position.

A wearable eyeglass holder that holds a temple of a folded pair of eyeglasses in a manner that resists the inadvertent unfolding of the held temple and the wearer's loss of the eyeglasses. The eyeglass holder has a connector that enables it to be attached, in a pendulous manner, to the wearer's neck, clothing, or other object. The eyeglass holder has an oblong body with a double convex shape and a longitudinal inner channel with two oblong openings on the same face of the body. A temple of a pair of eyeglasses, inserted through the upper opening, comes to rest upon a waist extending between the openings. The eyeglasses rest on the waist and a foot of the body provides a second contact point with the temple that maintains it in a closed position.

A slip-resistant eyewear system comprising an angular adjustment screw configured to couple to a first hinge of an eyewear frame such that an angle of the eyewear frame is adjustable relative to a first bow and a unitary eyewear retainer comprising 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.