Provided are ophthalmic components (e.g., eyeglass lenses and contact lenses) that include a two dimensional crystalline solid material dispersed in a matrix material. The disclosed components can selectively filter light of selected wavelengths, thereby making the components suitable for use by individuals who may suffer from color vision deficiency conditions. The two dimensional crystalline solid material comprises at least one layer comprising a substantially two-dimensional array of crystal cells; each crystal cell having an empirical formula of M(n+1)X(n), such that each X is positioned within an array of M, wherein M is at least one Group IIIB, IVB, VB, VIB or VIIB metal, and wherein X is C and/or N.

This disclosure is directed to increasing the use of protective eyewear in safety-critical environments. Systems and methods disclosed herein include lighting devices that emit ambient lighting and safety lighting for an environment. The safety lighting includes visible characteristics different from the ambient lighting. Additionally, the systems and methods include protective eyewear having a lens that filters out substantially the visible characteristics of the safety lighting striking the lens and pass components of the ambient light safety lighting striking the lens.

A display system comprises a display unit including a display screen, and a display control unit, wherein the display control unit sets at least one of luminance and a color map of the display screen based on wearing information indicating a wearing state of an eyewear.

An athletics visual aid focus device is disclosed. The athletics visual aid focus device providing horizontal tunnel vision may be worn by athletes to block out peripheral visual distractions. The athletics visual aid focus device may include upper and lower opaque regions disposed to block out peripheral vision along horizontal planes above and below the user's eyes and may provide a lower transparent region allowing the user to position his feet without head movement.

Eyewear uses a polarizing lens obtained by bending a multilayer polarizing sheet in which a sheet (A) including at least 50% by mass of an aromatic polycarbonate resin and having a retardation value of 2000 nm or less at a wavelength of 600 nm is layered on one side of a polarizing film, and a sheet (B) including a special polycarbonate resin obtained by carbonate bonding a dihydroxy compound through use of a carbonic acid diester, the polycarbonate resin being a compound in which 70-100 mol % of the dihydroxy compound is represented by general formula (1), is layered on the other side of the polarizing film. ##STR00001## (In general formula (1), R.sub.1 and R.sub.2 are each independently a hydrogen atom, a C.sub.1-C.sub.20 alkyl group, or the like. In general formula (1), X are each independently a C.sub.2-C.sub.8 alkylene group or the like.)

There is set forth herein an optomechanical device which can comprise a first mirror and a second mirror forming with the first mirror a cavity. In one aspect the first mirror can be a movable mirror. The optomechanical device can be adapted so that the first mirror is moveable responsively to radiation force.

In a protective helmet, in particular a sports helmet, with a shock-absorbing helmet shell and a visor, on each of two opposite sides of the protective helmet, a coupling section of the helmet shell and a coupling section of the visor are formed, one of which is configured as a coupling receptacle and the other as a coupling extension and in such a way that, the coupling extension may engage in the coupling receptacle in order to connect the visor to the helmet shell. The coupling extension is displaceable in the coupling receptacle along a displacement path between an initial position and an advance position and is pivotable about a pivot axis between the advance position and an open position.

A goggle lens is revealed. The goggle lens includes a first surface, a second surface opposite to the first surface, and a protective film connected to either the first surface or the second surface. The protective layer is a multi-layer structure formed by a silica composite film layer, a first zirconium dioxide film layer, a first silica film layer, an indium tin oxide (ITO) film layer, a second zirconium dioxide film layer and a second silica film layer in turn. Thereby harmful light such as blue light, infrared light, etc. is blocked by the protective film and ultraviolet light is also absorbed by the protective film for protecting user's eyes from damages.

A laser protection lens include an optically transparent material having a perimeter shape that follows a contour of a user's eye socket ridge, a horizontal shape, and a vertical shape. A multilayer interference coating is applied to at least one of an inside and outside surface of the optically transparent material. The multilayer interference coating has at least a 20 dB reduction of optical transmission for at least one of 445 nm, 532 nm, and 610 nm wavelengths and has at least 10 dB optical reduction over a wavelength band from at least one of 445 nm to the ultraviolet region and 610 nm the infrared region.

A protective mask for the eyes for sporting use, including a frame having at least one internal surface delimiting at least one opening, an optical system, configured as a lens, associable to the frame for closing the opening, and equipped with at least one first wall and at least one second wall spaced apart from one another and reciprocally connected, wherein the frame includes retaining members configured to engage and internally retain, by means of shape coupling, at least one peripheral portion of the at least one first wall and of the at least one second wall of the optical system.