According to one embodiment, a computer-implemented method for using a variable perceived distance viewing system includes outputting, by a computer, an image to a display visible via a variable-focus converging lens array. The variable-focus converging lens array sets a focal distance to a first perceived distance whereby the image is perceived as being present at the first perceived distance. Furthermore, the computer-implemented method includes adjusting, by the computer, the variable-focus converging lens array for adjusting a focal distance to a second perceived distance and scaling, by the computer, the image on the display to compensate for the focal distance adjustment. The features in the image at the first perceived distance have substantially the same dimensions as the same features in the image at the second perceived distance.

A method for determining an optical system intended to equip a person on the basis of the adaptability of the person to a visual and/or proprioceptive modification of his environment, the method. including a person visual behaviour parameter providing, during which a person visual behaviour parameter indicative of the visual behaviour of the person relative to a given state of the environment is provided; a reference value providing, during which a first value of the person visual behaviour pa ameter corresponding to a reference state of the environment is provided; a visual and/or proprioceptive modification providing, during which a visual and/or proprioceptive modification of the reference state of the environment is provided so as to define a modified state of the environment; and determining, during which an optical parameter of the optical system is determined based on the first value of the person visual behaviour parameter and on a second value of the person visual behaviour parameter associated with the modified state of the environment.

An exemplary system, method, and device are disclosed that facilitate a modular eyewear system with modular components (e.g., lenses, frames, speakers, cameras, lights, etc.) that can be interchanged. The modular components can be interchanged using components that are reversibly attachable/releasable (e.g., magnets at both male-female connectors). This can allow a wearer of the eyewear to quickly reconfigure the eyewear for different purposes, readjust the fit of the eyewear, repair damage to the eyewear, and/or customize the appearance of the eyewear.

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.

An eyeglass-shaped frame includes: a pair of lens-holding frames configured to hold lenses; a bridge connecting the pair of lens-holding frames; a temple foldably attached at a front end side thereof; a nose pad configured to support a nose in contact; movable lens-holding frames configured to be placed oppositely in front of the lens-holding frames; and a vertical movement unit configured to vertically move each of the movable lens-holding frames.

A pair of surgical loupes adapted to be secured to an eyewear portion. An embodiment of the surgical loupes comprises mirror coated Littrow lenses and double concave or triplet lenses. Another embodiment of the surgical loupes and eyewear portion comprises a vibration mechanism operably connected to the eyewear portion. Another embodiment of the surgical loupes comprises a counterweight mechanism operably connected to the eyewear portion. Another embodiment of the surgical loupes comprises a LED and camera portion. The LED light may be an orange spectrum light that blocks out blue spectrum light so as to prevent premature curing during dental procedures. Still yet another embodiment of the surgical loupes comprises blue spectrum light blocking lenses operably location in the lens housing.

A user-wearable illumination assembly comprising eyeglass frames supporting a pair of lenses, a mounting structure on a bridge of the eyeglass frames, a headlamp removably coupled to the mounting structure, a battery housing removably coupled to the headlamp, and a battery inside the battery housing.

A first recess (102) of a lower substrate (100) is coated with conductive ink to form a first auxiliary electrode layer (104), a lower electrode pattern (105) is formed thereon by vacuum deposition, a second recess (202) of an upper substrate (200) is coated with the conductive ink to form a second auxiliary electrode layer (204), an upper electrode pattern (205) is formed thereon by vacuum deposition, the upper and lower substrates are bonded to each other with an electric element (300) interposed between the lower substrate (100) and the upper substrate (100), and the upper and lower substrates are cut at positions on the overlap portion of the first auxiliary electrode layer (104) and the lower electrode pattern (105) and the overlap portion of the second auxiliary electrode layer (204) and the upper electrode pattern (205) so as to expose the cut surfaces of the substrates.

A variety of femtoprojector optical systems are described. Each of them can be made small enough to fit in a contact lens using plastic injection molding, diamond turning, photolithography and etching, or other techniques. Most, but not all, of the systems include a solid cylindrical transparent substrate with a curved primary mirror formed on one end and a secondary mirror formed on the other end. Any of the designs may use light blocking, light-redirecting, absorbing coatings or other types of baffle structures as needed to reduce stray light.

Dual-frame eyeglasses that include a foundation eyeglass frame that may be worn on the user's head, and a pivot eyeglass frame that is rigidly coupled to the foundation eyeglass frame via a pair of pivot mechanisms. The pivot eyeglass frame may be substantially similar in form and profile to the foundation eyeglass frame. The pivot eyeglass frame may be configured to incrementally rotate about the pivot mechanism from a first position that substantially overlaps a user's line of sight through to a second position that is angularly offset away from the user's line of sight. Additionally, the foundation eyeglass frame may include a nose bridge that separates into two elements at a coupling point on the nose bridge to facilitate each half of the foundation eyeglass frame folding into a separate, compact form.