Head-mounted accessories for surgeons and medical/dental practitioners are equipped with no-touch controls including, in different embodiments, passive and active infrared detection, voice operation, and capacitive proximity control. Compared to infrared, capacitive proximity control may be more omni-directional, whereas IR, particularly active IR, tends to be more effective in a cone of operation. Compared to voice activation, capacitive sensing is less expensive and less prone to false activation based upon ambient noise or other voices. The invention may be used to control other medical/dental accessories such as a head-mounted video camera, in which case the controller is further operative to at least turn the video camera ON or OFF. More preferably, a controller is additionally operative to control the focus or zoom of the video camera in accordance with touch-free commands.

An optical mounting assembly is adapted for use with wrap-around type eyeglass frames of the type that utilize a single sheet of curved lens material to form right and left lenses which may carry through-the-lens or TTL oculars or loupes. The optical mounting assembly may attach to an existing pair of wrap-around type eyeglass frames, or the invention may include the frames. The bridge portion of the frames and the lens material are sandwiched between front and rear components, with a nose pad component coupled to the rear component. The nose pad component may comprise a pair of bendable wire arms covered with, or terminating in, cushioning material. An illuminator or video camera may couple to the front component. The rear component may be adapted to receive an optical accessory such as a light-blocking or light-admitting filter material.

An anti-slip eyewear system comprising a nosepiece configured to couple to a bridge of an eyewear frame, the nosepiece comprising a core comprised of a first material and an outer layer at least partially surrounding or overlapping the core and comprised of a second material, the second material having a lower durometer than the first material, wherein the second material creates a plurality of Schallamach waves on an outer surface of the nosepiece when the outer layer of the nosepiece is in contact with at least a portion of a face of a user. The first material may have a durometer greater than about Shore 40A on the Shore A hardness scale and the second material may have a durometer less than about Shore 40A on the Shore A hardness scale.

An eyewear system comprising an eyewear frame comprising a first side bow component and a second side bow component, an auxiliary frame comprising an auxiliary top bar, an auxiliary first side bow component and an auxiliary second side bar component, the auxiliary first side bow component and the auxiliary second side bow component pivotally coupled to the first side bow component and the second side bow component, respectively. The system further comprises a declination angle adjuster positioned proximal a bridge of the eyewear frame, the declination angle adjuster comprising a rotatable member therein, and a vertical extension member extending from the eyewear frame and at least partially into the declination angle adjuster, the vertical extension member configured to engage the rotatable member within the declination angle adjuster.

The present disclosure provides a 3D spectacle lens and a method for driving the same, and a 3D glasses and a method for driving the same. The 3D spectacle lens includes: a first substrate and a second substrate arranged opposite to each other; and a guest-host liquid crystal layer arranged between the first substrate and the second substrate, the guest-host liquid crystal layer including liquid crystal molecules and dichroic dye molecules.

Rotational alignment apparatus and methods for interchangeable loupe telescope(s) are provided. Some embodiments include an indexing ring including a projection. The ring is fixed to the telescope upon rotational alignment of the telescope. The alignment may involve use of a laser and test fixture. The projection mates with a corresponding indexing notch of a loupe anchoring device. Loupes may comprise one or more anchor assemblies, and one or more interchangeable telescope assemblies. The interchangeable telescope assemblies are held to the anchor assemblies by magnetic attraction between one or more magnets and/or one or more magnetic components affixed to corresponding surfaces of the corresponding assemblies. Mating of the projection with the notch ensures appropriate relative rotational alignment of the assemblies.

A wireless headlight assembly for attachment to an eyewear frame is disclosed. The wireless headlight assembly comprises a battery pod containing a battery connected to a lower housing element, which controls the application of power from the battery to an attached headlight assembly containing a headlight.

A system for vision correction and enhancement which may include lenses and surfaces coated with materials with tunable reflectivity is provided. Methods of using the system for correcting and enhancing vision is also provided.

This eyewear system is provided with a first lens including an optical characteristic variation region in which an optical characteristic varies, a first frame for retaining the first lens, and a second frame for retaining a second lens different from the first lens, the first frame having a first attachment part for attaching the first frame to the second frame, or the second frame having a second attachment part for attaching the second frame to the first frame, so that the first lens and the second lens face each other and the optical characteristic variation region is positioned in the field of view of a subject through the second lens.

Interpupillary calibration system and method for stereoscopic visualization. The system includes a first display, second display, and calibration processor. The first display is disposed in proximity to a left aperture of an eyeframe to present a first image area through the left aperture, the first image area associated with an image and having a first display axis. The second display is disposed in proximity to a right aperture of the eyeframe to present a second image area through the right aperture, the second image area associated with the image and having a second display axis. The calibration processor is configured to adjust a display distance between the first image area and second image area based on an interpupillary distance of a user, wherein the first image area and second image area are visible through the first aperture and second aperture enabling formation of a stereoscopic view of the image.