Optical Filter for Selectively Blocking Light
OwnerStephen V. Chiavetta, IIIinventor
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Abstract
The present invention is directed to an optical filter that attenuates specific areas of the visible spectrum corresponding to the peaks of absorption of both the S-cone and rod cells within the human retina. The optical filter can be configured to also selectively block at least a portion of light centered at either one or both of the peak absorptive wavelengths of the human M and L-cone cells. The optical filter can be included within or on any optical system that is able to transmit all or part of the visible spectrum. As such, the present invention also provides an optical system that acts as a phototoxicity filter for the eye and can be used in conjunction with any material where visible light has at least partial transmittance.
Claims47
An optical filter configured to selectively block light centered at the peak absorptive wavelengths of the human S-cone cells and the rod cells.
An optical system comprising one or more filters configured to individually or collectively selectively block light centered at the peak absorptive wavelengths of the human S-cone cells and the rod cells.
An optical system, comprising:
- one or more transparent or partially transparent substrates;
- and
- one or more selective light blocking filters disposed directly or indirectly on the one or more substrates, wherein the one or more light filters selectively block at least a portion of light at any combination of two or more wavelengths selected from 420 nm +/−9 nm, 498 nm +/−9 nm, 534 nm +/−9 nm and 564 nm +/−9 nm.
An optical lens, comprising:
- a transparent or partially transparent substrate comprising a first side surface and a second side surface;
- a selective light blocking filter comprising a film, wherein the film is configured to selectively block at least a portion of light at any combination of two or more wavelengths selected from 420 nm +/−9 nm, 498 nm +/−9 nm, 534 nm +/−9 nm and 564 nm +/−9 nm;
- and
- a color balancing component configured to cause the optical lens to appear clear or mostly clear;
- wherein the filter and the color balancing component are each positioned proximate or adjacent to the substrate.
Dependencies are inferred from the claim text.