A system is provided that selectively blocks blue light in addition to having low overall transmittance values. The average value of the transmission spectrum of the system across the wavelength range 400 nm-470 nm is between 0% and 30% and the average value of the transmission spectrum across the wavelength range 470 nm-700 nm is between 0% and 70%. The transmission spectrum of the system has a first local minimum in transmission between 400 nm-470 nm.

A contact lens and a method of manufacturing the same are provided. The contact lens includes a contact lens body and a blue light blocking material covering the contact lens body. The blue light blocking material includes a plurality of metal particles dispersed on the contact lens body. The present invention includes compositions of at least one compound including metal ion with at least one or more reducing factors. The interactions between reducing factors endow contact lens body with homogeneous or pupil-regional preference of metal particles distribution with enhanced or decreased efficacy of blue light blocking. A further modification strengthens surface properties of contact lens including contact angle, water break-up time and long-term protein depositions.

The invention provides a method for manufacturing an ophthalmic article having at least one optical function and at least one predetermined transmission parameter, comprising the steps (102) of surfacing at least a first face of a first body of said article, made from a first material, according to a first geometry determined for providing said predetermined transmission parameters; and surfacing (103) at least a second face of a second body of said article, made from a second material, according to a second geometry determined at least according to said first geometry, for providing said optical.

The present invention relates to a curable composition for an optical material, containing (A) 100 parts by mass of a radical polymerizable monomer, (B) 0.005 to 0.5 parts by mass of a tetraazaporphyrin compound having a maximum absorption wavelength in a range of 560 nm or more and 620 nm or less, and (C) 0.1 to 10 parts by mass of an ultraviolet absorber having a maximum absorption wavelength in a range of 330 nm or more and 350 nm or less. According to the present invention, it is possible to provide a curable composition for an optical material, capable of being suitably used as a coating material that can easily provide an optical material having good antiglare properties and excellent weather resistance.

An optical filter for eye glasses, in particular suitable for spectacle lenses or ski goggles, has a spectral power transmission curve of optical radiations. The spectral power transmission curve exhibits a local maximum spectral transmission (T.sub.max) of radiations in a first wavelength range (Δλ.sub.max). The first wavelength range (Δλ.sub.max) is between 380 nm and 420 nm. The spectral power transmission curve exhibits spectral transmissions (T) of radiation in a second wavelength range (Δλ.sub.th) which are lower than an upper threshold spectral transmission (T.sub.th,u). The second wavelength range (Δλ.sub.th) is between 420 nm and 500 nm and the upper threshold spectral transmission (T.sub.th,u) is smaller than the maximum spectral transmission (T.sub.max). The maximum spectral transmission (T.sub.max) is larger than 21%.

Described herein are UV-absorbing vinylic monomers and their uses in preparing UV-absorbing contact lenses capable of blocking ultra-violet (“UV”) radiation and violet radiation with wavelengths from 380 nm to 440 nm, thereby protecting eyes to some extent from damages caused by UV radiation and potentially from violet radiation.

Described herein are water-soluble UV-absorbing vinylic monomers and their uses in preparing UV-absorbing contact lenses capable of blocking ultra-violet (“UV”) radiation and optionally (but preferably) violet radiation with wavelengths from 380 nm to 440 nm, thereby protecting eyes to some extent from damages caused by UV radiation and potentially from violet radiation. This invention also provides a UV-absorbing contact lens.

An optical film includes a polymeric bandstop filter reflecting a band of blue light in a range from 440 nm to 480 nm a polymeric bandstop filter reflecting a band of blue light in a range from 440 nm to 480 nm and transmitting greater than 50% of blue light at a wavelength of 10 nm longer than a long wavelength band edge and at a wavelength of 10 nm shorter than a short wavelength band edge.

A system is provided comprising an optical filter. The optical filter comprises a Cu-porphyrin dye compound. The transmission spectrum of the system has an average transmission across the wavelength range of 460 nm-700 nm of at least 60%. The transmission spectrum of the system has an average transmission across the wavelength range 400 nm-460 nm that is less than 75%.

Eyewear dynamically adjusts viewing effects to match the wearer, the object or scene being viewed (luminance, color prominence, glare, visual blur/noise), other conditions: sensory parameters (gaze direction, focal length, eye gestures, other eye activity, other senses, wearer inputs), medical conditions, wearer location, environmental parameters, wearer activity, use by the wearer, the wearer's field of view. The eyewear can adjust visual features presented to the wearer, such as changes in refraction, polarization/shading, color, prismatic angles/functions, 3D displays. Eyewear can be tailored to form factor: glasses, contacts, RID, IOL, facemask/helmet, vehicles, windows, screens, scopes, AR/VR devices, nerve sensors, external devices. Eyewear can adjust refraction, polarization/shading, color filtering/injection, false coloring, color change; prismatic angles/functions. Eyewear can respond to wearer activity: police, military, firefighter, emergency responder, search and rescue, vehicle operation, sporting/theme-park events, viewing advertising/storefronts, conversation. Hybrid optimization of eyewear can be personalized to users.