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.

An optical system having a spectral transmission profile having an average transmittance Ta between 380 nm and 780 nm and an average red light transmittance Tr between a first limit L1 and a second limit L2, with Tr<2*Ta/3 and L1=600 nm and L2=780 nm, and the optical system being configured to allow selectively retinal exposure of an eye to at least one selected range of wavelengths of light in the visible spectrum of 460 nm to 530 nm.

A method of forming a filter, comprising the steps of:selecting at least a first wavelength corresponding to a predetermined laser threat and having a first colour in the visible spectrum;providing a generally transparent substrate and forming a first notch filter region therein configured to substantially block incident radiation thereon of wavelengths within a first predetermined wavelength band including said first wavelength;selecting a second wavelength having a second colour in the visible spectrum and forming a colour balancing notch filter region in said substrate configured to block incident radiation thereon of wavelengths within a wavelength band including said second wavelength, thereby to balance or neutralise any colour distortion of said substrate caused by said first notch filter region.

A method of forming a conformable filter, comprising the steps of: selecting at least a first wavelength corresponding to a predetermined laser threat; providing a conformable photosensitive film (320) and exposing said film to radiation from a focused laser source (100) of said first wavelength to create a first filter region therein configured to substantially block incident radiation thereon substantially only of said first wavelength while substantially allowing other visible wavelengths to be transmitted; selecting a bandwidth corresponding to a first predetermined wavelength band including said first wavelength and exposing said polymeric film (320) to radiation from one or more further laser sources of respective different wavelengths within said first predetermined wavelength band to create a notch filter region therein, including said first filter region, said notch filter region being configured to substantially block incident radiation thereon at a wavelength within said first predetermined wavelength band whilst substantially allowing visible wavelengths outside of said first predetermined wavelength band to be transmitted therethrough.

A method of forming a conformable filter for a vehicle window, comprising the steps of: selecting at least a first wavelength corresponding to a predetermined laser threat; providing a conformable photosensitive film and exposing said film to radiation from a focused laser source of said first wavelength to create a first filter region therein configured to substantially block incident radiation thereon substantially only of said first wavelength; determining if an essential lighting source outside or inside the vehicle includes said first wavelength and, if so, selecting a bandwidth corresponding to a first predetermined wavelength band including said first wavelength and exposing said polymeric film to radiation from one or more further laser sources of respective different wavelengths within said first predetermined wavelength band to create a notch filter region therein, including said first filter region, said notch filter region being configured to substantially block incident radiation thereon at wavelengths within said first predetermined wavelength band whilst substantially allowing visible wavelengths outside of said first predetermined wavelength band to be transmitted therethrough, and wherein said bandwidth is selected to optimise visibility through said filter of said essential lighting source.

A mud visor formed by a substantially transparent sheet is attached to a goggle lens. The mud visor may be attached to the goggle lens using a substantially transparent adhesive or adhesive tape. Thus, the mud visor may provide clear and improved field of view for the user. Further, the mud visor may be configured to cover and guide a top portion of a roll-off film as the roll-off film is conveyed across the goggle lens. A top portion of the mud visor may be inserted into the lens groove of a goggle frame along with the goggle lens when the goggle lens is attached to the goggle frame. The mud visor also may stretch across the goggle lens and overlap with film canisters at both sides to provide a seamless coverage to prevent mud from entering behind the mud visor or the roll-off film.

An optically transparent device includes an exterior lens and an optical filter coupled to an inner surface of the exterior lens. A protective coating comprised of an acrylate may be coupled to an inner surface of the optical filter to reduce fragments of the optical filter from detaching from the exterior lens.

The invention relates to a visual protection device (1) for task forces. According to the invention, in order to reduce the effects of potentially traumatic events on task forces, at least one viewing lens (6) of the visual protection device (1) is designed to reflect and/or absorb light with wavelengths of more than 640 nm, more than 600 nm, more than 560 nm or more than 550 nm more strongly than light in the shorter wavelength range, wherein the shorter wavelength range extends up to wavelengths of 640 nm, 600 nm, 560 nm or 550 nm.

An eye protection system may include a first lens, a second lens, and a lens support. The first lens may filter light of one or more first wavelengths. The second lens may filter light of one or more second wavelengths. At least one of the one or more first wavelengths may be different than at least one of the one or more second wavelengths. The lens support may position the first lens and the second lens in side-by-side arrangement respectively in front of a first eye and a second eye of a wearer in a manner respectively preventing the one or more first wavelengths and the one or more second wavelengths from being respectively received by the first eye and the second eye.

Provided are a method, system and a kit for improving a defined condition in a subject, the method including selecting a set of one or more correction zones, being surface zones on the surface of the subject's skin or defined angular zones in the subject's field of view, the one or more correction zones to thereby cause improvement in said condition. Further provided are methods and systems for providing such correction zones related to a defined condition in a subject or to a defined cause in a subject being associated with a defined condition.